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style cleanup

Browse source 
This brings the library sources into compliance with checkpatch
style except for three or four exceptions like WIN32 related stuff
and one long string constant I don't want to break into multiple
sprintf calls.

There should be no functional or compilability change from all
this (hopefully).

Signed-off-by: Andy Green <andy.green@linaro.org>
This commit is contained in:
Andy Green 2013-02-11 17:13:32 +08:00
parent ad68639a7b
commit b5b23199f6
18 changed files with 1165 additions and 971 deletions
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32
lib/client-handshake.c
View file

@ -28,8 +28,12 @@ struct libwebsocket *__libwebsocket_client_connect_2(
/* OK from now on we talk via the proxy, so connect to that */
/* (will overwrite existing pointer, leaving old string/frag there but unreferenced) */
if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS, context->http_proxy_address))
/*
* (will overwrite existing pointer,
* leaving old string/frag there but unreferenced)
*/
if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS,
context->http_proxy_address))
goto oom4;
wsi->u.hdr.c_port = context->http_proxy_port;
}
@ -89,7 +93,8 @@ struct libwebsocket *__libwebsocket_client_connect_2(
}
libwebsocket_set_timeout(wsi,
PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE, AWAITING_TIMEOUT);
PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE,
AWAITING_TIMEOUT);
wsi->mode = LWS_CONNMODE_WS_CLIENT_WAITING_PROXY_REPLY;
@ -180,7 +185,7 @@ libwebsocket_client_connect(struct libwebsocket_context *context,
if (wsi == NULL)
goto bail1;
memset(wsi, 0, sizeof *wsi);
memset(wsi, 0, sizeof(*wsi));
/* -1 means just use latest supported */
@ -220,14 +225,16 @@ libwebsocket_client_connect(struct libwebsocket_context *context,
goto bail1;
if (origin)
if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_ORIGIN, origin))
if (lws_hdr_simple_create(wsi,
_WSI_TOKEN_CLIENT_ORIGIN, origin))
goto bail1;
/*
* this is a list of protocols we tell the server we're okay with
* stash it for later when we compare server response with it
*/
if (protocol)
if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS, protocol))
if (lws_hdr_simple_create(wsi,
_WSI_TOKEN_CLIENT_SENT_PROTOCOLS, protocol))
goto bail1;
wsi->protocol = &context->protocols[0];
@ -259,7 +266,8 @@ libwebsocket_client_connect(struct libwebsocket_context *context,
lwsl_client("libwebsocket_client_connect: ext handling conn\n");
libwebsocket_set_timeout(wsi,
PENDING_TIMEOUT_AWAITING_EXTENSION_CONNECT_RESPONSE, AWAITING_TIMEOUT);
PENDING_TIMEOUT_AWAITING_EXTENSION_CONNECT_RESPONSE,
AWAITING_TIMEOUT);
wsi->mode = LWS_CONNMODE_WS_CLIENT_WAITING_EXTENSION_CONNECT;
return wsi;
@ -292,7 +300,7 @@ bail:
* the server, or just one. The server will pick the one it
* likes best.
* @ietf_version_or_minus_one: -1 to ask to connect using the default, latest
* protocol supported, or the specific protocol ordinal
* protocol supported, or the specific protocol ordinal
* @userdata: Pre-allocated user data
*
* This function creates a connection to a remote server
@ -308,13 +316,15 @@ libwebsocket_client_connect_extended(struct libwebsocket_context *context,
const char *origin,
const char *protocol,
int ietf_version_or_minus_one,
void *userdata)
void *userdata)
{
struct libwebsocket *ws =
libwebsocket_client_connect(context, address, port, ssl_connection, path, host, origin, protocol, ietf_version_or_minus_one) ;
libwebsocket_client_connect(context, address, port,
ssl_connection, path, host, origin, protocol,
ietf_version_or_minus_one);
if (ws && !ws->user_space && userdata)
ws->user_space = userdata ;
return ws ;
}
}

76
lib/client-parser.c
View file

@ -31,8 +31,6 @@ int libwebsocket_client_rx_sm(struct libwebsocket *wsi, unsigned char c)
int m;
#endif
// lwsl_parser(" CRX: %02X %d\n", c, wsi->lws_rx_parse_state);
switch (wsi->lws_rx_parse_state) {
case LWS_RXPS_NEW:
@ -45,15 +43,15 @@ int libwebsocket_client_rx_sm(struct libwebsocket *wsi, unsigned char c)
switch (wsi->u.ws.opcode) {
case LWS_WS_OPCODE_07__TEXT_FRAME:
case LWS_WS_OPCODE_07__BINARY_FRAME:
wsi->u.ws.frame_is_binary = wsi->u.ws.opcode == LWS_WS_OPCODE_07__BINARY_FRAME;
wsi->u.ws.frame_is_binary = wsi->u.ws.opcode ==
LWS_WS_OPCODE_07__BINARY_FRAME;
break;
}
wsi->lws_rx_parse_state = LWS_RXPS_04_FRAME_HDR_LEN;
break;
default:
lwsl_err("client_rx_sm doesn't know how "
"to handle spec version %02d\n",
lwsl_err("unknown spec version %02d\n",
wsi->ietf_spec_revision);
break;
}
@ -228,13 +226,15 @@ int libwebsocket_client_rx_sm(struct libwebsocket *wsi, unsigned char c)
else
wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING +
(wsi->u.ws.rx_user_buffer_head++)] =
c ^ wsi->u.ws.frame_masking_nonce_04[(wsi->u.ws.frame_mask_index++) & 3];
c ^ wsi->u.ws.frame_masking_nonce_04[
(wsi->u.ws.frame_mask_index++) & 3];
if (--wsi->u.ws.rx_packet_length == 0) {
wsi->lws_rx_parse_state = LWS_RXPS_NEW;
goto spill;
}
if (wsi->u.ws.rx_user_buffer_head != wsi->protocol->rx_buffer_size)
if (wsi->u.ws.rx_user_buffer_head !=
wsi->protocol->rx_buffer_size)
break;
spill:
@ -256,12 +256,14 @@ spill:
lwsl_parser("seen server's close ack\n");
return -1;
}
lwsl_parser("client sees server close packet len = %d\n", wsi->u.ws.rx_user_buffer_head);
lwsl_parser("client sees server close len = %d\n",
wsi->u.ws.rx_user_buffer_head);
/* parrot the close packet payload back */
n = libwebsocket_write(wsi, (unsigned char *)
&wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
wsi->u.ws.rx_user_buffer_head, LWS_WRITE_CLOSE);
lwsl_parser("client writing close ack returned %d\n", n);
&wsi->u.ws.rx_user_buffer[
LWS_SEND_BUFFER_PRE_PADDING],
wsi->u.ws.rx_user_buffer_head, LWS_WRITE_CLOSE);
lwsl_parser("client send close ack returned %d\n", n);
wsi->state = WSI_STATE_RETURNED_CLOSE_ALREADY;
/* close the connection */
return -1;
@ -270,14 +272,17 @@ spill:
lwsl_info("client received ping, doing pong\n");
/* parrot the ping packet payload back as a pong*/
n = libwebsocket_write(wsi, (unsigned char *)
&wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
wsi->u.ws.rx_user_buffer_head, LWS_WRITE_PONG);
&wsi->u.ws.rx_user_buffer[
LWS_SEND_BUFFER_PRE_PADDING],
wsi->u.ws.rx_user_buffer_head,
LWS_WRITE_PONG);
handled = 1;
break;
case LWS_WS_OPCODE_07__PONG:
lwsl_info("client receied pong\n");
lwsl_hexdump(&wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
lwsl_hexdump(&wsi->u.ws.rx_user_buffer[
LWS_SEND_BUFFER_PRE_PADDING],
wsi->u.ws.rx_user_buffer_head);
/* issue it */
@ -291,7 +296,7 @@ spill:
default:
lwsl_parser("Reserved opcode 0x%2X\n", wsi->u.ws.opcode);
lwsl_parser("Reserved opc 0x%2X\n", wsi->u.ws.opcode);
#ifndef LWS_NO_EXTENSIONS
/*
* It's something special we can't understand here.
@ -318,8 +323,8 @@ spill:
#else
{
#endif
lwsl_ext("Unhandled extended opcode "
"0x%x - ignoring frame\n", wsi->u.ws.opcode);
lwsl_ext("Unhandled ext opc 0x%x\n",
wsi->u.ws.opcode);
wsi->u.ws.rx_user_buffer_head = 0;
return 0;
@ -349,27 +354,31 @@ spill:
&eff_buf, 0);
if (m < 0) {
lwsl_ext(
"Extension '%s' failed to handle payload!\n",
wsi->active_extensions[n]->name);
"Ext '%s' failed to handle payload!\n",
wsi->active_extensions[n]->name);
return -1;
}
}
#endif
if (eff_buf.token_len > 0) {
eff_buf.token[eff_buf.token_len] = '\0';
if (eff_buf.token_len <= 0)
goto already_done;
if (wsi->protocol->callback) {
if (callback_action == LWS_CALLBACK_CLIENT_RECEIVE_PONG)
lwsl_info("Client doing pong callback\n");
wsi->protocol->callback(
wsi->protocol->owning_server,
wsi,
eff_buf.token[eff_buf.token_len] = '\0';
if (!wsi->protocol->callback)
goto already_done;
if (callback_action == LWS_CALLBACK_CLIENT_RECEIVE_PONG)
lwsl_info("Client doing pong callback\n");
wsi->protocol->callback(
wsi->protocol->owning_server,
wsi,
(enum libwebsocket_callback_reasons)callback_action,
wsi->user_space,
eff_buf.token,
eff_buf.token_len);
}
}
wsi->user_space,
eff_buf.token,
eff_buf.token_len);
already_done:
wsi->u.ws.rx_user_buffer_head = 0;
break;
@ -382,8 +391,7 @@ already_done:
illegal_ctl_length:
lwsl_warn("Control frame asking for "
"extended length is illegal\n");
lwsl_warn("Control frame asking for extended length is illegal\n");
/* kill the connection */
return -1;

187
lib/client.c
View file

@ -35,11 +35,8 @@
#include <netdb.h>
#endif
#ifdef LWS_OPENSSL_SUPPORT
extern int openssl_websocket_private_data_index;
#endif
int lws_client_socket_service(struct libwebsocket_context *context, struct libwebsocket *wsi, struct pollfd *pollfd)
int lws_client_socket_service(struct libwebsocket_context *context,
struct libwebsocket *wsi, struct pollfd *pollfd)
{
int n;
char *p = (char *)&context->service_buffer[0];
@ -63,7 +60,7 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
}
n = recv(wsi->sock, context->service_buffer,
sizeof context->service_buffer, 0);
sizeof(context->service_buffer), 0);
if (n < 0) {
libwebsocket_close_and_free_session(context, wsi,
LWS_CLOSE_STATUS_NOSTATUS);
@ -75,7 +72,7 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
if (strcmp((char *)context->service_buffer, "HTTP/1.0 200 ")) {
libwebsocket_close_and_free_session(context, wsi,
LWS_CLOSE_STATUS_NOSTATUS);
lwsl_err("ERROR from proxy: %s\n", context->service_buffer);
lwsl_err("ERROR proxy: %s\n", context->service_buffer);
return 0;
}
@ -106,31 +103,35 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
LWS_CALLBACK_CLEAR_MODE_POLL_FD,
(void *)(long)wsi->sock, NULL, POLLOUT);
/* we can retry this... so just cook the SSL BIO the first time */
/* we can retry this... just cook the SSL BIO the first time */
if (wsi->use_ssl && !wsi->ssl) {
wsi->ssl = SSL_new(context->ssl_client_ctx);
#ifdef USE_CYASSL
/* CyaSSL does certificate verification differently from OpenSSL.
* If we should ignore the certificate, we need to set this before
* SSL_new and SSL_connect is called. Otherwise the connect will
* simply fail with error code -155 */
if (wsi->use_ssl == 2) {
CyaSSL_set_verify(wsi->ssl, SSL_VERIFY_NONE, NULL);
}
#endif // USE_CYASSL
wsi->client_bio = BIO_new_socket(wsi->sock, BIO_NOCLOSE);
#ifdef USE_CYASSL
/*
* CyaSSL does certificate verification differently
* from OpenSSL.
* If we should ignore the certificate, we need to set
* this before SSL_new and SSL_connect is called.
* Otherwise the connect will simply fail with error
* code -155
*/
if (wsi->use_ssl == 2)
CyaSSL_set_verify(wsi->ssl,
SSL_VERIFY_NONE, NULL);
#endif /* USE_CYASSL */
wsi->client_bio =
BIO_new_socket(wsi->sock, BIO_NOCLOSE);
SSL_set_bio(wsi->ssl, wsi->client_bio, wsi->client_bio);
#ifdef USE_CYASSL
#ifdef USE_CYASSL
CyaSSL_set_using_nonblock(wsi->ssl, 1);
#else
#else
BIO_set_nbio(wsi->client_bio, 1); /* nonblocking */
#endif
#endif
SSL_set_ex_data(wsi->ssl,
openssl_websocket_private_data_index,
@ -140,7 +141,9 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
if (wsi->use_ssl) {
lws_latency_pre(context, wsi);
n = SSL_connect(wsi->ssl);
lws_latency(context, wsi, "SSL_connect LWS_CONNMODE_WS_CLIENT_ISSUE_HANDSHAKE", n, n > 0);
lws_latency(context, wsi,
"SSL_connect LWS_CONNMODE_WS_CLIENT_ISSUE_HANDSHAKE",
n, n > 0);
if (n < 0) {
n = SSL_get_error(wsi->ssl, n);
@ -148,18 +151,22 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
if (n == SSL_ERROR_WANT_READ ||
n == SSL_ERROR_WANT_WRITE) {
/*
* wants us to retry connect due to state of the
* underlying ssl layer... but since it may be
* stalled on blocked write, no incoming data may
* arrive to trigger the retry. Force (possibly
* many if the SSL state persists in returning the
* condition code, but other sockets are getting
* serviced inbetweentimes) us to get called back
* when writable.
* wants us to retry connect due to
* state of the underlying ssl layer...
* but since it may be stalled on
* blocked write, no incoming data may
* arrive to trigger the retry.
* Force (possibly many times if the SSL
* state persists in returning the
* condition code, but other sockets
* are getting serviced inbetweentimes)
* us to get called back when writable.
*/
lwsl_info("SSL_connect -> SSL_ERROR_WANT_... retrying\n");
libwebsocket_callback_on_writable(context, wsi);
lwsl_info(
"SSL_connect WANT_... retrying\n");
libwebsocket_callback_on_writable(
context, wsi);
return 0; /* no error */
}
@ -174,33 +181,38 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
lwsl_err("SSL connect error %s\n",
ERR_error_string(ERR_get_error(),
(char *)context->service_buffer));
(char *)context->service_buffer));
return 0;
}
#ifndef USE_CYASSL
/* See note above about CyaSSL certificate verification */
/*
* See comment above about CyaSSL certificate
* verification
*/
lws_latency_pre(context, wsi);
n = SSL_get_verify_result(wsi->ssl);
lws_latency(context, wsi, "SSL_get_verify_result LWS_CONNMODE_WS_CLIENT_ISSUE_HANDSHAKE", n, n > 0);
lws_latency(context, wsi,
"SSL_get_verify_result LWS_CONNMODE..HANDSHAKE",
n, n > 0);
if ((n != X509_V_OK) && (
n != X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT ||
wsi->use_ssl != 2)) {
lwsl_err("server's cert didn't "
"look good %d\n", n);
lwsl_err(
"server's cert didn't look good %d\n", n);
libwebsocket_close_and_free_session(context,
wsi, LWS_CLOSE_STATUS_NOSTATUS);
return 0;
}
#endif // USE_CYASSL
#endif /* USE_CYASSL */
} else
wsi->ssl = NULL;
#endif
#endif
p = libwebsockets_generate_client_handshake(context, wsi, p);
if (p == NULL) {
lwsl_err("Failed to generate handshake for client, closing it\n");
lwsl_err("Failed to generate handshake for client\n");
libwebsocket_close_and_free_session(context, wsi,
LWS_CLOSE_STATUS_NOSTATUS);
return 0;
@ -209,13 +221,17 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
/* send our request to the server */
lws_latency_pre(context, wsi);
#ifdef LWS_OPENSSL_SUPPORT
#ifdef LWS_OPENSSL_SUPPORT
if (wsi->use_ssl)
n = SSL_write(wsi->ssl, context->service_buffer, p - (char *)context->service_buffer);
n = SSL_write(wsi->ssl, context->service_buffer,
p - (char *)context->service_buffer);
else
#endif
n = send(wsi->sock, context->service_buffer, p - (char *)context->service_buffer, 0);
lws_latency(context, wsi, "send or SSL_write LWS_CONNMODE_WS_CLIENT_ISSUE_HANDSHAKE", n, n >= 0);
#endif
n = send(wsi->sock, context->service_buffer,
p - (char *)context->service_buffer, 0);
lws_latency(context, wsi,
"send or SSL_write LWS_CONNMODE...HANDSHAKE",
n, n >= 0);
if (n < 0) {
lwsl_debug("ERROR writing to client socket\n");
@ -228,8 +244,8 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
wsi->u.hdr.lextable_pos = 0;
wsi->mode = LWS_CONNMODE_WS_CLIENT_WAITING_SERVER_REPLY;
libwebsocket_set_timeout(wsi,
PENDING_TIMEOUT_AWAITING_SERVER_RESPONSE, AWAITING_TIMEOUT);
PENDING_TIMEOUT_AWAITING_SERVER_RESPONSE,
AWAITING_TIMEOUT);
break;
case LWS_CONNMODE_WS_CLIENT_WAITING_SERVER_REPLY:
@ -268,14 +284,15 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
*/
len = 1;
while (wsi->u.hdr.parser_state != WSI_PARSING_COMPLETE && len > 0) {
while (wsi->u.hdr.parser_state != WSI_PARSING_COMPLETE &&
len > 0) {
#ifdef LWS_OPENSSL_SUPPORT
if (wsi->use_ssl) {
len = SSL_read(wsi->ssl, &c, 1);
if (len < 0) {
n = SSL_get_error(wsi->ssl, len);
if (n == SSL_ERROR_WANT_READ ||
n == SSL_ERROR_WANT_WRITE)
n == SSL_ERROR_WANT_WRITE)
return 0;
}
} else
@ -309,7 +326,8 @@ int lws_client_socket_service(struct libwebsocket_context *context, struct libwe
return lws_client_interpret_server_handshake(context, wsi);
bail3:
lwsl_info("closing connection at LWS_CONNMODE_WS_CLIENT_WAITING_SERVER_REPLY\n");
lwsl_info(
"closing connection at LWS_CONNMODE...SERVER_REPLY\n");
libwebsocket_close_and_free_session(context, wsi,
LWS_CLOSE_STATUS_NOSTATUS);
return 0;
@ -371,8 +389,8 @@ lws_client_interpret_server_handshake(struct libwebsocket_context *context,
if (!p)
goto bail3;
if (p && strncmp(p, "101", 3)) {
lwsl_warn("libwebsocket_client_handshake "
"server sent bad HTTP response '%s'\n", p);
lwsl_warn(
"lws_client_handshake: got bad HTTP response '%s'\n", p);
goto bail3;
}
@ -381,8 +399,8 @@ lws_client_interpret_server_handshake(struct libwebsocket_context *context,
goto bail3;
strtolower(p);
if (strcmp(p, "websocket")) {
lwsl_warn("libwebsocket_client_handshake server "
"sent bad Upgrade header '%s'\n", p);
lwsl_warn(
"lws_client_handshake: got bad Upgrade header '%s'\n", p);
goto bail3;
}
@ -391,18 +409,15 @@ lws_client_interpret_server_handshake(struct libwebsocket_context *context,
goto bail3;
strtolower(p);
if (strcmp(p, "upgrade")) {
lwsl_warn("libwebsocket_client_handshake server "
"sent bad Connection hdr '%s'\n", p);
lwsl_warn("lws_client_int_s_hs: bad header %s\n", p);
goto bail3;
}
pc = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS);
if (pc == NULL)
lwsl_parser("lws_client_interpret_server_handshake: "
"NULL c_protocol\n");
lwsl_parser("lws_client_int_s_hs: no protocol list\n");
else
lwsl_parser("lws_client_interpret_server_handshake: "
"cPprotocol='%s'\n", pc);
lwsl_parser("lws_client_int_s_hs: protocol list '%s'\n", pc);
/*
* confirm the protocol the server wants to talk was in the list
@ -412,8 +427,7 @@ lws_client_interpret_server_handshake(struct libwebsocket_context *context,
len = lws_hdr_total_length(wsi, WSI_TOKEN_PROTOCOL);
if (!len) {
lwsl_info("lws_client_interpret_server_handshake "
"WSI_TOKEN_PROTOCOL is null\n");
lwsl_info("lws_client_int_s_hs: WSI_TOKEN_PROTOCOL is null\n");
/*
* no protocol name to work from,
* default to first protocol
@ -426,7 +440,8 @@ lws_client_interpret_server_handshake(struct libwebsocket_context *context,
len = strlen(p);
while (*pc && !okay) {
if (!strncmp(pc, p, len) && (pc[len] == ',' || pc[len] == '\0')) {
if (!strncmp(pc, p, len) &&
(pc[len] == ',' || pc[len] == '\0')) {
okay = 1;
continue;
}
@ -437,8 +452,7 @@ lws_client_interpret_server_handshake(struct libwebsocket_context *context,
}
if (!okay) {
lwsl_err("libwebsocket_client_handshake server "
"sent bad protocol '%s'\n", p);
lwsl_err("lws_client_int_s_hs: got bad protocol %s\n", p);
goto bail2;
}
@ -456,9 +470,7 @@ lws_client_interpret_server_handshake(struct libwebsocket_context *context,
}
if (wsi->protocol == NULL) {
lwsl_err("libwebsocket_client_handshake server "
"requested protocol '%s', which we "
"said we supported but we don't!\n", p);
lwsl_err("lws_client_int_s_hs: fail protocol %s\n", p);
goto bail2;
}
@ -477,7 +489,8 @@ check_extensions:
* and go through matching them or identifying bogons
*/
if (lws_hdr_copy(wsi, (char *)context->service_buffer, sizeof(context->service_buffer), WSI_TOKEN_EXTENSIONS) < 0)
if (lws_hdr_copy(wsi, (char *)context->service_buffer,
sizeof(context->service_buffer), WSI_TOKEN_EXTENSIONS) < 0)
goto bail2;
c = (char *)context->service_buffer;
@ -547,8 +560,7 @@ check_extensions:
}
if (n == 0) {
lwsl_warn("Server said we should use"
"an unknown extension '%s'!\n", ext_name);
lwsl_warn("Unknown ext '%s'!\n", ext_name);
goto bail2;
}
@ -564,8 +576,7 @@ check_accept:
p = lws_hdr_simple_ptr(wsi, WSI_TOKEN_ACCEPT);
if (strcmp(p, wsi->u.hdr.initial_handshake_hash_base64)) {
lwsl_warn("libwebsocket_client_handshake server "
"sent bad ACCEPT '%s' vs computed '%s'\n", p,
lwsl_warn("lws_client_int_s_hs: accept %s wrong vs %s\n", p,
wsi->u.hdr.initial_handshake_hash_base64);
goto bail2;
}
@ -599,7 +610,7 @@ check_accept:
/* union transition */
memset(&wsi->u, 0, sizeof wsi->u);
memset(&wsi->u, 0, sizeof(wsi->u));
/*
* create the frame buffer for this connection according to the
@ -699,7 +710,7 @@ libwebsockets_generate_client_handshake(struct libwebsocket_context *context,
return NULL;
}
lws_b64_encode_string(hash, 16, key_b64, sizeof key_b64);
lws_b64_encode_string(hash, 16, key_b64, sizeof(key_b64));
/*
* 00 example client handshake
@ -727,24 +738,26 @@ libwebsockets_generate_client_handshake(struct libwebsocket_context *context,
* Sec-WebSocket-Version: 4
*/
p += sprintf(p, "GET %s HTTP/1.1\x0d\x0a", lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_URI));
p += sprintf(p, "GET %s HTTP/1.1\x0d\x0a",
lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_URI));
p += sprintf(p, "Pragma: no-cache\x0d\x0a"
"Cache-Control: no-cache\x0d\x0a");
p += sprintf(p,
"Pragma: no-cache\x0d\x0a""Cache-Control: no-cache\x0d\x0a");
p += sprintf(p, "Host: %s\x0d\x0a", lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_HOST));
p += sprintf(p, "Upgrade: websocket\x0d\x0a"
"Connection: Upgrade\x0d\x0a"
"Sec-WebSocket-Key: ");
p += sprintf(p, "Host: %s\x0d\x0a",
lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_HOST));
p += sprintf(p,
"Upgrade: websocket\x0d\x0aConnection: Upgrade\x0d\x0aSec-WebSocket-Key: ");
strcpy(p, key_b64);
p += strlen(key_b64);
p += sprintf(p, "\x0d\x0a");
if (lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_ORIGIN))
p += sprintf(p, "Origin: %s\x0d\x0a", lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_ORIGIN));
p += sprintf(p, "Origin: %s\x0d\x0a",
lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_ORIGIN));
if (lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS))
p += sprintf(p, "Sec-WebSocket-Protocol: %s\x0d\x0a",
lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS));
lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS));
/* tell the server what extensions we could support */
@ -812,13 +825,13 @@ libwebsockets_generate_client_handshake(struct libwebsocket_context *context,
/* prepare the expected server accept response */
n = snprintf(buf, sizeof buf, "%s%s", key_b64, magic_websocket_guid);
n = snprintf(buf, sizeof(buf), "%s%s", key_b64, magic_websocket_guid);
buf[sizeof(buf) - 1] = '\0';
SHA1((unsigned char *)buf, n, (unsigned char *)hash);
lws_b64_encode_string(hash, 20,
wsi->u.hdr.initial_handshake_hash_base64,
sizeof wsi->u.hdr.initial_handshake_hash_base64);
sizeof(wsi->u.hdr.initial_handshake_hash_base64));
return p;
}

27
lib/daemonize.c
View file

@ -48,20 +48,20 @@ child_handler(int signum)
fd = open(lock_path, O_TRUNC | O_RDWR | O_CREAT, 0640);
if (fd < 0) {
fprintf(stderr, "unable to create lock"
" file %s, code=%d (%s)\n",
fprintf(stderr,
"unable to create lock file %s, code=%d (%s)\n",
lock_path, errno, strerror(errno));
exit(1);
}
len = sprintf(sz, "%u", pid_daemon);
sent = write(fd, sz, len);
if (sent != len)
fprintf(stderr, "unable write pid to lock"
" file %s, code=%d (%s)\n",
lock_path, errno, strerror(errno));
fprintf(stderr,
"unable write pid to lock file %s, code=%d (%s)\n",
lock_path, errno, strerror(errno));
close(fd);
exit(!!(sent == len));
close(fd);
exit(!!(sent == len));
case SIGCHLD: /* daemonization failed */
exit(1);
@ -104,16 +104,19 @@ lws_daemonize(const char *_lock_path)
fd = open(_lock_path, O_RDONLY);
if (fd > 0) {
n = read(fd, buf, sizeof buf);
n = read(fd, buf, sizeof(buf));
close(fd);
if (n) {
n = atoi(buf);
ret = kill(n, 0);
if (ret >= 0) {
fprintf(stderr, "Daemon already running from pid %d, aborting\n", n);
fprintf(stderr,
"Daemon already running from pid %d\n", n);
exit(1);
}
fprintf(stderr, "Removing stale lock file %s from dead pid %d\n", _lock_path, n);
fprintf(stderr,
"Removing stale lock file %s from dead pid %d\n",
_lock_path, n);
unlink(lock_path);
}
}
@ -207,11 +210,11 @@ lws_daemonize(const char *_lock_path)
act.sa_handler = lws_daemon_closing;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
sigaction(SIGTERM, &act, NULL);
/* return to continue what is now "the daemon" */
return (0);
return 0;
}

53
lib/extension-deflate-frame.c
View file

@ -50,8 +50,8 @@ int lws_extension_callback_deflate_frame(
}
conn->buf_pre_used = 0;
conn->buf_pre_length = 0;
conn->buf_in_length = sizeof conn->buf_in;;
conn->buf_out_length = sizeof conn->buf_out;
conn->buf_in_length = sizeof(conn->buf_in);
conn->buf_out_length = sizeof(conn->buf_out);
conn->compressed_out = 0;
conn->buf_pre = NULL;
conn->buf_in = (unsigned char *)
@ -147,19 +147,21 @@ bail:
conn->zs_in.avail_in = total_payload + 4;
conn->zs_in.next_out = conn->buf_in + LWS_SEND_BUFFER_PRE_PADDING;
conn->zs_in.avail_out = conn->buf_in_length;
conn->zs_in.next_out =
conn->buf_in + LWS_SEND_BUFFER_PRE_PADDING;
conn->zs_in.avail_out = conn->buf_in_length;
while (1) {
n = inflate(&conn->zs_in, Z_SYNC_FLUSH);
switch (n) {
case Z_NEED_DICT:
case Z_STREAM_ERROR:
case Z_DATA_ERROR:
case Z_MEM_ERROR:
while (1) {
n = inflate(&conn->zs_in, Z_SYNC_FLUSH);
switch (n) {
case Z_NEED_DICT:
case Z_STREAM_ERROR:
case Z_DATA_ERROR:
case Z_MEM_ERROR:
/*
* screwed.. close the connection... we will get a
* destroy callback to take care of closing nicely
* screwed.. close the connection...
* we will get a destroy callback to take care
* of closing nicely
*/
lwsl_err("zlib error inflate %d: %s\n",
n, conn->zs_in.msg);
@ -174,8 +176,7 @@ bail:
conn->buf_in_length *= 2;
if (conn->buf_in_length > LWS_MAX_ZLIB_CONN_BUFFER) {
lwsl_ext("zlib in buffer tried to exceed "
"max allowed of %u\n",
lwsl_ext("zlib in buffer hit limit %u\n",
LWS_MAX_ZLIB_CONN_BUFFER);
return -1;
}
@ -191,13 +192,14 @@ bail:
"deflate-frame ext RX did realloc to %ld\n",
conn->buf_in_length);
conn->zs_in.next_out = conn->buf_in +
LWS_SEND_BUFFER_PRE_PADDING + len_so_far;
LWS_SEND_BUFFER_PRE_PADDING + len_so_far;
conn->zs_in.avail_out =
conn->buf_in_length - len_so_far;
}
conn->buf_in_length - len_so_far;
}
/* rewrite the buffer pointers and length */
eff_buf->token = (char *)(conn->buf_in + LWS_SEND_BUFFER_PRE_PADDING);
eff_buf->token =
(char *)(conn->buf_in + LWS_SEND_BUFFER_PRE_PADDING);
eff_buf->token_len = (int)(conn->zs_in.next_out -
(conn->buf_in + LWS_SEND_BUFFER_PRE_PADDING));
@ -212,15 +214,17 @@ bail:
conn->zs_out.next_in = (unsigned char *)eff_buf->token;
conn->zs_out.avail_in = current_payload;
conn->zs_out.next_out = conn->buf_out + LWS_SEND_BUFFER_PRE_PADDING;
conn->zs_out.next_out =
conn->buf_out + LWS_SEND_BUFFER_PRE_PADDING;
conn->zs_out.avail_out = conn->buf_out_length;
while (1) {
n = deflate(&conn->zs_out, Z_SYNC_FLUSH);
if (n == Z_STREAM_ERROR) {
/*
* screwed.. close the connection... we will get a
* destroy callback to take care of closing nicely
* screwed.. close the connection... we will
* get a destroy callback to take care of
* closing nicely
*/
lwsl_ext("zlib error deflate\n");
@ -235,9 +239,8 @@ bail:
LWS_SEND_BUFFER_PRE_PADDING));
conn->buf_out_length *= 2;
if (conn->buf_out_length > LWS_MAX_ZLIB_CONN_BUFFER) {
lwsl_ext("zlib out buffer tried to exceed "
"max allowed of %u\n",
LWS_MAX_ZLIB_CONN_BUFFER);
lwsl_ext("zlib out hit limit %u\n",
LWS_MAX_ZLIB_CONN_BUFFER);
return -1;
}
conn->buf_out = (unsigned char *)realloc(

19
lib/extension-deflate-stream.c
View file

@ -60,14 +60,11 @@ int lws_extension_callback_deflate_stream(
* Notice, length may be 0 and pointer NULL
* in the case we are flushing with nothing new coming in
*/
if (conn->remaining_in)
{
if (conn->remaining_in) {
conn->zs_in.next_in = conn->buf_in;
conn->zs_in.avail_in = conn->remaining_in;
conn->remaining_in = 0;
}
else
{
} else {
conn->zs_in.next_in = (unsigned char *)eff_buf->token;
conn->zs_in.avail_in = eff_buf->token_len;
}
@ -91,13 +88,14 @@ int lws_extension_callback_deflate_stream(
/* rewrite the buffer pointers and length */
eff_buf->token = (char *)conn->buf_out;
eff_buf->token_len = sizeof(conn->buf_out) - conn->zs_in.avail_out;
eff_buf->token_len =
sizeof(conn->buf_out) - conn->zs_in.avail_out;
/* copy avail data if not consumed */
if (conn->zs_in.avail_in > 0)
{
if (conn->zs_in.avail_in > 0) {
conn->remaining_in = conn->zs_in.avail_in;
memcpy(conn->buf_in, conn->zs_in.next_in, conn->zs_in.avail_in);
memcpy(conn->buf_in, conn->zs_in.next_in,
conn->zs_in.avail_in);
return 1;
}
@ -144,7 +142,8 @@ int lws_extension_callback_deflate_stream(
/* rewrite the buffer pointers and length */
eff_buf->token = (char *)conn->buf_out;
eff_buf->token_len = sizeof(conn->buf_out) - conn->zs_out.avail_out;
eff_buf->token_len =
sizeof(conn->buf_out) - conn->zs_out.avail_out;
/*
* if we filled the output buffer, signal that we likely have

6
lib/extension.c
View file

@ -8,18 +8,18 @@ struct libwebsocket_extension libwebsocket_internal_extensions[] = {
{
"deflate-stream",
lws_extension_callback_deflate_stream,
sizeof (struct lws_ext_deflate_stream_conn)
sizeof(struct lws_ext_deflate_stream_conn)
},
#else
{
"x-webkit-deflate-frame",
lws_extension_callback_deflate_frame,
sizeof (struct lws_ext_deflate_frame_conn)
sizeof(struct lws_ext_deflate_frame_conn)
},
{
"deflate-frame",
lws_extension_callback_deflate_frame,
sizeof (struct lws_ext_deflate_frame_conn)
sizeof(struct lws_ext_deflate_frame_conn)
},
#endif
{ /* terminator */

317
lib/getifaddrs.c
View file

@ -1,25 +1,28 @@
/* downloaded from http://ftp.uninett.no/pub/OpenBSD/src/kerberosV/src/lib/roken/getifaddrs.c */
/*
* downloaded from
* http://ftp.uninett.no/pub/OpenBSD/src/kerberosV/src/lib/roken/getifaddrs.c
*/
#if !HAVE_GETIFADDRS
/*
* Copyright (c) 2000 - 2001 Kungliga Tekniska Högskolan
* Copyright (c) 2000 - 2001 Kungliga Tekniska H<EFBFBD>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@ -51,174 +54,174 @@
#endif
#ifndef max
#define max(a,b) ((a)>(b)?(a):(b))
#define max(a, b) ((a) > (b) ? (a) : (b))
#endif
#include "getifaddrs.h"
static int
getifaddrs2(struct ifaddrs **ifap,
getifaddrs2(struct ifaddrs **ifap,
int af, int siocgifconf, int siocgifflags,
size_t ifreq_sz)
{
int ret;
int fd;
size_t buf_size;
char *buf;
struct ifconf ifconf;
char *p;
size_t sz;
struct sockaddr sa_zero;
struct ifreq *ifr;
int ret;
int fd;
size_t buf_size;
char *buf;
struct ifconf ifconf;
char *p;
size_t sz;
struct sockaddr sa_zero;
struct ifreq *ifr;
struct ifaddrs *start, **end = &start;
struct ifaddrs *start, **end = &start;
buf = NULL;
buf = NULL;
memset (&sa_zero, 0, sizeof(sa_zero));
fd = socket(af, SOCK_DGRAM, 0);
if (fd < 0)
return -1;
memset(&sa_zero, 0, sizeof(sa_zero));
fd = socket(af, SOCK_DGRAM, 0);
if (fd < 0)
return -1;
buf_size = 8192;
for (;;) {
buf = calloc(1, buf_size);
if (buf == NULL) {
ret = ENOMEM;
goto error_out;
buf_size = 8192;
for (;;) {
buf = calloc(1, buf_size);
if (buf == NULL) {
ret = ENOMEM;
goto error_out;
}
ifconf.ifc_len = buf_size;
ifconf.ifc_buf = buf;
/*
* Solaris returns EINVAL when the buffer is too small.
*/
if (ioctl(fd, siocgifconf, &ifconf) < 0 && errno != EINVAL) {
ret = errno;
goto error_out;
}
/*
* Can the difference between a full and a overfull buf
* be determined?
*/
if (ifconf.ifc_len < (int)buf_size)
break;
free(buf);
buf_size *= 2;
}
ifconf.ifc_len = buf_size;
ifconf.ifc_buf = buf;
/*
* Solaris returns EINVAL when the buffer is too small.
*/
if (ioctl (fd, siocgifconf, &ifconf) < 0 && errno != EINVAL) {
ret = errno;
goto error_out;
}
/*
* Can the difference between a full and a overfull buf
* be determined?
*/
for (p = ifconf.ifc_buf; p < ifconf.ifc_buf + ifconf.ifc_len; p += sz) {
struct ifreq ifreq;
struct sockaddr *sa;
size_t salen;
if (ifconf.ifc_len < (int)buf_size)
break;
free (buf);
buf_size *= 2;
}
ifr = (struct ifreq *)p;
sa = &ifr->ifr_addr;
for (p = ifconf.ifc_buf;
p < ifconf.ifc_buf + ifconf.ifc_len;
p += sz) {
struct ifreq ifreq;
struct sockaddr *sa;
size_t salen;
ifr = (struct ifreq *)p;
sa = &ifr->ifr_addr;
sz = ifreq_sz;
salen = sizeof(struct sockaddr);
sz = ifreq_sz;
salen = sizeof(struct sockaddr);
#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
salen = sa->sa_len;
sz = max(sz, sizeof(ifr->ifr_name) + sa->sa_len);
salen = sa->sa_len;
sz = max(sz, sizeof(ifr->ifr_name) + sa->sa_len);
#endif
#ifdef SA_LEN
salen = SA_LEN(sa);
sz = max(sz, sizeof(ifr->ifr_name) + SA_LEN(sa));
salen = SA_LEN(sa);
sz = max(sz, sizeof(ifr->ifr_name) + SA_LEN(sa));
#endif
memset (&ifreq, 0, sizeof(ifreq));
memcpy (ifreq.ifr_name, ifr->ifr_name, sizeof(ifr->ifr_name));
memset(&ifreq, 0, sizeof(ifreq));
memcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifr->ifr_name));
if (ioctl(fd, siocgifflags, &ifreq) < 0) {
ret = errno;
goto error_out;
}
if (ioctl(fd, siocgifflags, &ifreq) < 0) {
ret = errno;
goto error_out;
}
*end = malloc(sizeof(**end));
*end = malloc(sizeof(**end));
(*end)->ifa_next = NULL;
(*end)->ifa_name = strdup(ifr->ifr_name);
(*end)->ifa_flags = ifreq.ifr_flags;
(*end)->ifa_addr = malloc(salen);
memcpy((*end)->ifa_addr, sa, salen);
(*end)->ifa_netmask = NULL;
(*end)->ifa_next = NULL;
(*end)->ifa_name = strdup(ifr->ifr_name);
(*end)->ifa_flags = ifreq.ifr_flags;
(*end)->ifa_addr = malloc(salen);
memcpy((*end)->ifa_addr, sa, salen);
(*end)->ifa_netmask = NULL;
#if 0
/* fix these when we actually need them */
if(ifreq.ifr_flags & IFF_BROADCAST) {
(*end)->ifa_broadaddr = malloc(sizeof(ifr->ifr_broadaddr));
memcpy((*end)->ifa_broadaddr, &ifr->ifr_broadaddr,
sizeof(ifr->ifr_broadaddr));
} else if(ifreq.ifr_flags & IFF_POINTOPOINT) {
(*end)->ifa_dstaddr = malloc(sizeof(ifr->ifr_dstaddr));
memcpy((*end)->ifa_dstaddr, &ifr->ifr_dstaddr,
sizeof(ifr->ifr_dstaddr));
} else
(*end)->ifa_dstaddr = NULL;
/* fix these when we actually need them */
if (ifreq.ifr_flags & IFF_BROADCAST) {
(*end)->ifa_broadaddr =
malloc(sizeof(ifr->ifr_broadaddr));
memcpy((*end)->ifa_broadaddr, &ifr->ifr_broadaddr,
sizeof(ifr->ifr_broadaddr));
} else if (ifreq.ifr_flags & IFF_POINTOPOINT) {
(*end)->ifa_dstaddr = malloc(sizeof(ifr->ifr_dstaddr));
memcpy((*end)->ifa_dstaddr, &ifr->ifr_dstaddr,
sizeof(ifr->ifr_dstaddr));
} else
(*end)->ifa_dstaddr = NULL;
#else
(*end)->ifa_dstaddr = NULL;
(*end)->ifa_dstaddr = NULL;
#endif
(*end)->ifa_data = NULL;
(*end)->ifa_data = NULL;
end = &(*end)->ifa_next;
end = &(*end)->ifa_next;
}
*ifap = start;
close(fd);
free(buf);
return 0;
error_out:
close(fd);
free(buf);
errno = ret;
return -1;
}
*ifap = start;
close(fd);
free(buf);
return 0;
error_out:
close(fd);
free(buf);
errno = ret;
return -1;
}
int
getifaddrs(struct ifaddrs **ifap)
getifaddrs(struct ifaddrs **ifap)
{
int ret = -1;
errno = ENXIO;
int ret = -1;
errno = ENXIO;
#if defined(AF_INET6) && defined(SIOCGIF6CONF) && defined(SIOCGIF6FLAGS)
if (ret)
ret = getifaddrs2 (ifap, AF_INET6, SIOCGIF6CONF, SIOCGIF6FLAGS,
if (ret)
ret = getifaddrs2(ifap, AF_INET6, SIOCGIF6CONF, SIOCGIF6FLAGS,
sizeof(struct in6_ifreq));
#endif
#if defined(HAVE_IPV6) && defined(SIOCGIFCONF)
if (ret)
ret = getifaddrs2 (ifap, AF_INET6, SIOCGIFCONF, SIOCGIFFLAGS,
if (ret)
ret = getifaddrs2(ifap, AF_INET6, SIOCGIFCONF, SIOCGIFFLAGS,
sizeof(struct ifreq));
#endif
#if defined(AF_INET) && defined(SIOCGIFCONF) && defined(SIOCGIFFLAGS)
if (ret)
ret = getifaddrs2 (ifap, AF_INET, SIOCGIFCONF, SIOCGIFFLAGS,
if (ret)
ret = getifaddrs2(ifap, AF_INET, SIOCGIFCONF, SIOCGIFFLAGS,
sizeof(struct ifreq));
#endif
return ret;
return ret;
}
void
freeifaddrs(struct ifaddrs *ifp)
{
struct ifaddrs *p, *q;
for(p = ifp; p; ) {
free(p->ifa_name);
if(p->ifa_addr)
free(p->ifa_addr);
if(p->ifa_dstaddr)
free(p->ifa_dstaddr);
if(p->ifa_netmask)
free(p->ifa_netmask);
if(p->ifa_data)
free(p->ifa_data);
q = p;
p = p->ifa_next;
free(q);
}
struct ifaddrs *p, *q;
for (p = ifp; p; ) {
free(p->ifa_name);
if (p->ifa_addr)
free(p->ifa_addr);
if (p->ifa_dstaddr)
free(p->ifa_dstaddr);
if (p->ifa_netmask)
free(p->ifa_netmask);
if (p->ifa_data)
free(p->ifa_data);
q = p;
p = p->ifa_next;
free(q);
}
}
#ifdef TEST
@ -226,46 +229,48 @@ freeifaddrs(struct ifaddrs *ifp)
void
print_addr(const char *s, struct sockaddr *sa)
{
int i;
printf(" %s=%d/", s, sa->sa_family);
int i;
printf(" %s=%d/", s, sa->sa_family);
#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
for(i = 0; i < sa->sa_len - ((long)sa->sa_data - (long)&sa->sa_family); i++)
printf("%02x", ((unsigned char*)sa->sa_data)[i]);
for (i = 0;
i < sa->sa_len - ((long)sa->sa_data - (long)&sa->sa_family); i++)
printf("%02x", ((unsigned char *)sa->sa_data)[i]);
#else
for(i = 0; i < sizeof(sa->sa_data); i++)
printf("%02x", ((unsigned char*)sa->sa_data)[i]);
for (i = 0; i < sizeof(sa->sa_data); i++)
printf("%02x", ((unsigned char *)sa->sa_data)[i]);
#endif
printf("\n");
printf("\n");
}
void
void
print_ifaddrs(struct ifaddrs *x)
{
struct ifaddrs *p;
for(p = x; p; p = p->ifa_next) {
printf("%s\n", p->ifa_name);
printf(" flags=%x\n", p->ifa_flags);
if(p->ifa_addr)
print_addr("addr", p->ifa_addr);
if(p->ifa_dstaddr)
print_addr("dstaddr", p->ifa_dstaddr);
if(p->ifa_netmask)
print_addr("netmask", p->ifa_netmask);
printf(" %p\n", p->ifa_data);
}
struct ifaddrs *p;
for (p = x; p; p = p->ifa_next) {
printf("%s\n", p->ifa_name);
printf(" flags=%x\n", p->ifa_flags);
if (p->ifa_addr)
print_addr("addr", p->ifa_addr);
if (p->ifa_dstaddr)
print_addr("dstaddr", p->ifa_dstaddr);
if (p->ifa_netmask)
print_addr("netmask", p->ifa_netmask);
printf(" %p\n", p->ifa_data);
}
}
int
main()
{
struct ifaddrs *a = NULL, *b;
getifaddrs2(&a, AF_INET, SIOCGIFCONF, SIOCGIFFLAGS, sizeof(struct ifreq));
print_ifaddrs(a);
printf("---\n");
getifaddrs(&b);
print_ifaddrs(b);
return 0;
struct ifaddrs *a = NULL, *b;
getifaddrs2(&a, AF_INET, SIOCGIFCONF,
SIOCGIFFLAGS, sizeof(struct ifreq));
print_ifaddrs(a);
printf("---\n");
getifaddrs(&b);
print_ifaddrs(b);
return 0;
}
#endif
#endif

30
lib/getifaddrs.h
View file

@ -6,25 +6,25 @@
extern "C" {
#endif
/*
* Copyright (c) 2000 Kungliga Tekniska Högskolan
* Copyright (c) 2000 Kungliga Tekniska H<EFBFBD>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@ -51,22 +51,22 @@ extern "C" {
#undef ifa_dstaddr
struct ifaddrs {
struct ifaddrs *ifa_next;
char *ifa_name;
unsigned int ifa_flags;
struct sockaddr *ifa_addr;
struct sockaddr *ifa_netmask;
struct sockaddr *ifa_dstaddr;
void *ifa_data;
struct ifaddrs *ifa_next;
char *ifa_name;
unsigned int ifa_flags;
struct sockaddr *ifa_addr;
struct sockaddr *ifa_netmask;
struct sockaddr *ifa_dstaddr;
void *ifa_data;
};
#ifndef ifa_broadaddr
#define ifa_broadaddr ifa_dstaddr
#endif
int getifaddrs(struct ifaddrs**);
int getifaddrs(struct ifaddrs **);
void freeifaddrs(struct ifaddrs*);
void freeifaddrs(struct ifaddrs *);
#endif /* __ifaddrs_h__ */

47
lib/handshake.c
View file

@ -53,13 +53,9 @@
* machine that is completely independent of packet size.
*/
#ifndef LWS_NO_SERVER
extern int handshake_0405(struct libwebsocket_context *context, struct libwebsocket *wsi);
#endif
int
libwebsocket_read(struct libwebsocket_context *context,
struct libwebsocket *wsi, unsigned char * buf, size_t len)
struct libwebsocket *wsi, unsigned char *buf, size_t len)
{
size_t n;
@ -73,14 +69,8 @@ libwebsocket_read(struct libwebsocket_context *context,
case WSI_STATE_HTTP_HEADERS:
lwsl_parser("issuing %d bytes to parser\n", (int)len);
#ifdef _DEBUG
//fwrite(buf, 1, len, stderr);
#endif
#ifndef LWS_NO_CLIENT
// lwsl_info("mode=%d\n", wsi->mode);
switch (wsi->mode) {
case LWS_CONNMODE_WS_CLIENT_WAITING_PROXY_REPLY:
case LWS_CONNMODE_WS_CLIENT_ISSUE_HANDSHAKE:
@ -89,7 +79,7 @@ libwebsocket_read(struct libwebsocket_context *context,
case LWS_CONNMODE_WS_CLIENT:
for (n = 0; n < len; n++)
if (libwebsocket_client_rx_sm(wsi, *buf++)) {
lwsl_info("libwebsocket_client_rx_sm failed\n");
lwsl_info("client_rx_sm failed\n");
goto bail;
}
return 0;
@ -119,17 +109,17 @@ libwebsocket_read(struct libwebsocket_context *context,
n = 0;
if (wsi->protocol->callback)
n = wsi->protocol->callback(context, wsi,
LWS_CALLBACK_HTTP,
wsi->user_space,
lws_hdr_simple_ptr(wsi, WSI_TOKEN_GET_URI),
lws_hdr_total_length(wsi, WSI_TOKEN_GET_URI));
LWS_CALLBACK_HTTP,
wsi->user_space,
lws_hdr_simple_ptr(wsi, WSI_TOKEN_GET_URI),
lws_hdr_total_length(wsi, WSI_TOKEN_GET_URI));
/* drop the header info */
if (wsi->u.hdr.ah)
free(wsi->u.hdr.ah);
if (n) {
lwsl_info("LWS_CALLBACK_HTTP wanted to close\n");
lwsl_info("LWS_CALLBACK_HTTP closing\n");
goto bail;
}
@ -152,7 +142,8 @@ libwebsocket_read(struct libwebsocket_context *context,
break;
} else
if (wsi->protocol->name && strcmp(
lws_hdr_simple_ptr(wsi, WSI_TOKEN_PROTOCOL),
lws_hdr_simple_ptr(wsi,
WSI_TOKEN_PROTOCOL),
wsi->protocol->name) == 0)
break;
@ -162,14 +153,13 @@ libwebsocket_read(struct libwebsocket_context *context,
/* we didn't find a protocol he wanted? */
if (wsi->protocol->callback == NULL) {
if (lws_hdr_simple_ptr(wsi, WSI_TOKEN_PROTOCOL) == NULL) {
lwsl_info("[no protocol] "
"mapped to protocol 0 handler\n");
if (lws_hdr_simple_ptr(wsi, WSI_TOKEN_PROTOCOL) ==
NULL) {
lwsl_info("no protocol -> prot 0 handler\n");
wsi->protocol = &context->protocols[0];
} else {
lwsl_err("Requested protocol %s "
"not supported\n",
lws_hdr_simple_ptr(wsi, WSI_TOKEN_PROTOCOL));
lwsl_err("Req protocol %s not supported\n",
lws_hdr_simple_ptr(wsi, WSI_TOKEN_PROTOCOL));
goto bail;
}
}
@ -195,9 +185,9 @@ libwebsocket_read(struct libwebsocket_context *context,
switch (wsi->ietf_spec_revision) {
case 13:
lwsl_parser("libwebsocket_parse calling handshake_04\n");
lwsl_parser("lws_parse calling handshake_04\n");
if (handshake_0405(context, wsi)) {
lwsl_info("handshake_0405 xor 05 has failed the connection\n");
lwsl_info("hs0405 has failed the connection\n");
goto bail;
}
break;
@ -216,7 +206,7 @@ libwebsocket_read(struct libwebsocket_context *context,
wsi->mode = LWS_CONNMODE_WS_SERVING;
/* union transition */
memset(&wsi->u, 0, sizeof wsi->u);
memset(&wsi->u, 0, sizeof(wsi->u));
/*
* create the frame buffer for this connection according to the
@ -246,7 +236,8 @@ libwebsocket_read(struct libwebsocket_context *context,
switch (wsi->mode) {
case LWS_CONNMODE_WS_CLIENT:
for (n = 0; n < len; n++)
if (libwebsocket_client_rx_sm(wsi, *buf++) < 0) {
if (libwebsocket_client_rx_sm(
wsi, *buf++) < 0) {
lwsl_info("client rx has bailed\n");
goto bail;
}

332
lib/libwebsockets.c
View file

@ -58,7 +58,7 @@ static void (*lwsl_emit)(int level, const char *line) = lwsl_emit_stderr;
static const char *library_version = LWS_LIBRARY_VERSION " " LWS_BUILD_HASH;
static const char *log_level_names[] = {
static const char * const log_level_names[] = {
"ERR",
"WARN",
"NOTICE",
@ -71,6 +71,17 @@ static const char *log_level_names[] = {
"LATENCY",
};
#ifndef LWS_NO_CLIENT
extern int lws_client_socket_service(
struct libwebsocket_context *context,
struct libwebsocket *wsi, struct pollfd *pollfd);
#endif
#ifndef LWS_NO_SERVER
extern int lws_server_socket_service(
struct libwebsocket_context *context,
struct libwebsocket *wsi, struct pollfd *pollfd);
#endif
/**
* lws_get_library_version: get version and git hash library built from
*
@ -86,22 +97,25 @@ lws_get_library_version(void)
}
int
insert_wsi_socket_into_fds(struct libwebsocket_context *context, struct libwebsocket *wsi)
insert_wsi_socket_into_fds(struct libwebsocket_context *context,
struct libwebsocket *wsi)
{
if (context->fds_count >= context->max_fds) {
lwsl_err("Reached limit of fds tracking (%d)\n", context->max_fds);
lwsl_err("Too many fds (%d)\n", context->max_fds);
return 1;
}
if (wsi->sock > context->max_fds) {
lwsl_err("Socket fd %d is beyond what we can index (%d)\n", wsi->sock, context->max_fds);
lwsl_err("Socket fd %d is too high (%d)\n",
wsi->sock, context->max_fds);
return 1;
}
assert(wsi);
assert(wsi->sock);
lwsl_info("insert_wsi_socket_into_fds: wsi=%p, sock=%d, fds pos=%d\n", wsi, wsi->sock, context->fds_count);
lwsl_info("insert_wsi_socket_into_fds: wsi=%p, sock=%d, fds pos=%d\n",
wsi, wsi->sock, context->fds_count);
context->lws_lookup[wsi->sock] = wsi;
wsi->position_in_fds_table = context->fds_count;
@ -118,7 +132,8 @@ insert_wsi_socket_into_fds(struct libwebsocket_context *context, struct libwebso
}
static int
remove_wsi_socket_from_fds(struct libwebsocket_context *context, struct libwebsocket *wsi)
remove_wsi_socket_from_fds(struct libwebsocket_context *context,
struct libwebsocket *wsi)
{
int m;
@ -126,22 +141,29 @@ remove_wsi_socket_from_fds(struct libwebsocket_context *context, struct libwebso
goto do_ext;
if (wsi->sock > context->max_fds) {
lwsl_err("Socket fd %d is beyond what we can index (%d)\n", wsi->sock, context->max_fds);
lwsl_err("Socket fd %d too high (%d)\n",
wsi->sock, context->max_fds);
return 1;
}
lwsl_info("remove_wsi_socket_from_fds: wsi=%p, sock=%d, fds pos=%d\n", wsi, wsi->sock, wsi->position_in_fds_table);
lwsl_info("remove_wsi_socket_from_fds: wsi=%p, sock=%d, fds pos=%d\n",
wsi, wsi->sock, wsi->position_in_fds_table);
m = wsi->position_in_fds_table; /* replace the contents for this */
/* have the last guy take up the vacant slot */
context->fds[m] = context->fds[context->fds_count]; /* vacant fds slot filled with end one */
/* end guy's fds_lookup entry remains unchanged (still same fd pointing to same wsi) */
context->fds[m] = context->fds[context->fds_count];
/*
* end guy's fds_lookup entry remains unchanged
* (still same fd pointing to same wsi)
*/
/* end guy's "position in fds table" changed */
context->lws_lookup[context->fds[context->fds_count].fd]->position_in_fds_table = m;
context->lws_lookup[context->fds[context->fds_count].fd]->
position_in_fds_table = m;
/* deletion guy's lws_lookup entry needs nuking */
context->lws_lookup[wsi->sock] = NULL; /* no WSI for the socket of the wsi being removed*/
wsi->position_in_fds_table = -1; /* removed wsi has no position any more */
context->lws_lookup[wsi->sock] = NULL;
/* removed wsi has no position any more */
wsi->position_in_fds_table = -1;
do_ext:
/* remove also from external POLL support via protocol 0 */
@ -248,8 +270,8 @@ libwebsocket_close_and_free_session(struct libwebsocket_context *context,
if (eff_buf.token_len)
if (lws_issue_raw(wsi, (unsigned char *)eff_buf.token,
eff_buf.token_len)) {
lwsl_debug("close: sending final extension spill had problems\n");
eff_buf.token_len)) {
lwsl_debug("close: ext spill failed\n");
goto just_kill_connection;
}
}
@ -273,8 +295,9 @@ libwebsocket_close_and_free_session(struct libwebsocket_context *context,
lwsl_debug("sending close indication...\n");
/* make valgrind happy */
memset(buf, 0, sizeof buf);
n = libwebsocket_write(wsi, &buf[LWS_SEND_BUFFER_PRE_PADDING + 2],
memset(buf, 0, sizeof(buf));
n = libwebsocket_write(wsi,
&buf[LWS_SEND_BUFFER_PRE_PADDING + 2],
0, LWS_WRITE_CLOSE);
if (!n) {
/*
@ -284,7 +307,10 @@ libwebsocket_close_and_free_session(struct libwebsocket_context *context,
wsi->state = WSI_STATE_AWAITING_CLOSE_ACK;
/* and we should wait for a reply for a bit out of politeness */
/*
* ...and we should wait for a reply for a bit
* out of politeness
*/
libwebsocket_set_timeout(wsi,
PENDING_TIMEOUT_CLOSE_ACK, 1);
@ -294,7 +320,7 @@ libwebsocket_close_and_free_session(struct libwebsocket_context *context,
return;
}
lwsl_info("close: sending the close packet failed, hanging up\n");
lwsl_info("close: sending close packet failed, hanging up\n");
/* else, the send failed and we should just hang up */
}
@ -303,7 +329,7 @@ libwebsocket_close_and_free_session(struct libwebsocket_context *context,
just_kill_connection:
#endif
lwsl_debug("libwebsocket_close_and_free_session: just_kill_connection\n");
lwsl_debug("close: just_kill_connection\n");
/*
* we won't be servicing or receiving anything further from this guy
@ -314,7 +340,9 @@ just_kill_connection:
wsi->state = WSI_STATE_DEAD_SOCKET;
if ((old_state == WSI_STATE_ESTABLISHED || wsi->mode == LWS_CONNMODE_WS_SERVING || wsi->mode == LWS_CONNMODE_WS_CLIENT) && wsi->u.ws.rx_user_buffer) {
if ((old_state == WSI_STATE_ESTABLISHED ||
wsi->mode == LWS_CONNMODE_WS_SERVING ||
wsi->mode == LWS_CONNMODE_WS_CLIENT) && wsi->u.ws.rx_user_buffer) {
free(wsi->u.ws.rx_user_buffer);
wsi->u.ws.rx_user_buffer = NULL;
}
@ -329,7 +357,7 @@ just_kill_connection:
wsi->protocol->callback(context, wsi, LWS_CALLBACK_CLOSED,
wsi->user_space, NULL, 0);
} else
lwsl_debug("not calling back closed, old_state=%d\n", old_state);
lwsl_debug("not calling back closed\n");
#ifndef LWS_NO_EXTENSIONS
/* deallocate any active extension contexts */
@ -376,16 +404,19 @@ just_kill_connection:
if (wsi->sock) {
n = shutdown(wsi->sock, SHUT_RDWR);
if (n)
lwsl_debug("closing: shutdown returned %d\n", errno);
lwsl_debug("closing: shutdown returned %d\n",
errno);
n = compatible_close(wsi->sock);
if (n)
lwsl_debug("closing: close returned %d\n", errno);
lwsl_debug("closing: close returned %d\n",
errno);
}
#ifdef LWS_OPENSSL_SUPPORT
}
#endif
if (wsi->protocol && wsi->protocol->per_session_data_size && wsi->user_space) /* user code may own */
if (wsi->protocol && wsi->protocol->per_session_data_size &&
wsi->user_space) /* user code may own */
free(wsi->user_space);
free(wsi);
@ -404,7 +435,7 @@ libwebsockets_hangup_on_client(struct libwebsocket_context *context, int fd)
struct libwebsocket *wsi = context->lws_lookup[fd];
if (wsi) {
lwsl_info("closing connection at libwebsockets_hangup_on_client:\n");
lwsl_info("close connection at hangup_on_client:\n");
libwebsocket_close_and_free_session(context,
wsi, LWS_CLOSE_STATUS_NOSTATUS);
} else
@ -442,7 +473,7 @@ libwebsockets_get_peer_addresses(struct libwebsocket_context *context,
int n;
int ret = -1;
#ifdef AF_LOCAL
struct sockaddr_un *un;
struct sockaddr_un *un;
#endif
rip[0] = '\0';
@ -450,13 +481,13 @@ libwebsockets_get_peer_addresses(struct libwebsocket_context *context,
lws_latency_pre(context, wsi);
len = sizeof sin;
len = sizeof(sin);
if (getpeername(fd, (struct sockaddr *) &sin, &len) < 0) {
perror("getpeername");
goto bail;
}
host = gethostbyaddr((char *) &sin.sin_addr, sizeof sin.sin_addr,
host = gethostbyaddr((char *) &sin.sin_addr, sizeof(sin.sin_addr),
AF_INET);
if (host == NULL) {
perror("gethostbyaddr");
@ -725,7 +756,8 @@ notify_action:
n = LWS_CALLBACK_SERVER_WRITEABLE;
return user_callback_handle_rxflow(wsi->protocol->callback, context,
wsi, (enum libwebsocket_callback_reasons) n, wsi->user_space, NULL, 0);
wsi, (enum libwebsocket_callback_reasons) n,
wsi->user_space, NULL, 0);
}
@ -771,7 +803,8 @@ libwebsocket_service_timeout_check(struct libwebsocket_context *context,
* happened.
*
* This function takes a pollfd that has POLLIN or POLLOUT activity and
* services it according to the state of the associated struct libwebsocket.
* services it according to the state of the associated
* struct libwebsocket.
*
* The one call deals with all "service" that might happen on a socket
* including listen accepts, http files as well as websocket protocol.
@ -791,12 +824,6 @@ libwebsocket_service_fd(struct libwebsocket_context *context,
int more = 1;
#endif
struct lws_tokens eff_buf;
#ifndef LWS_NO_CLIENT
extern int lws_client_socket_service(struct libwebsocket_context *context, struct libwebsocket *wsi, struct pollfd *pollfd);
#endif
#ifndef LWS_NO_SERVER
extern int lws_server_socket_service(struct libwebsocket_context *context, struct libwebsocket *wsi, struct pollfd *pollfd);
#endif
if (context->listen_service_fd)
listen_socket_fds_index = context->lws_lookup[
@ -815,14 +842,16 @@ libwebsocket_service_fd(struct libwebsocket_context *context,
#ifndef WIN32
/* if our parent went down, don't linger around */
if (context->started_with_parent && kill(context->started_with_parent, 0) < 0)
if (context->started_with_parent &&
kill(context->started_with_parent, 0) < 0)
kill(getpid(), SIGTERM);
#endif
/* global timeout check once per second */
for (n = 0; n < context->fds_count; n++) {
struct libwebsocket *new_wsi = context->lws_lookup[context->fds[n].fd];
struct libwebsocket *new_wsi =
context->lws_lookup[context->fds[n].fd];
if (!new_wsi)
continue;
libwebsocket_service_timeout_check(context,
@ -846,23 +875,32 @@ libwebsocket_service_fd(struct libwebsocket_context *context,
* pending connection here, it causes us to check again next time.
*/
if (context->listen_service_fd && pollfd != &context->fds[listen_socket_fds_index]) {
if (context->listen_service_fd && pollfd !=
&context->fds[listen_socket_fds_index]) {
context->listen_service_count++;
if (context->listen_service_extraseen ||
context->listen_service_count == context->listen_service_modulo) {
context->listen_service_count ==
context->listen_service_modulo) {
context->listen_service_count = 0;
m = 1;
if (context->listen_service_extraseen > 5)
m = 2;
while (m--) {
/* even with extpoll, we prepared this internal fds for listen */
n = poll(&context->fds[listen_socket_fds_index], 1, 0);
if (n > 0) { /* there's a connection waiting for us */
libwebsocket_service_fd(context, &context->fds[listen_socket_fds_index]);
/*
* even with extpoll, we prepared this
* internal fds for listen
*/
n = poll(&context->fds[listen_socket_fds_index],
1, 0);
if (n > 0) { /* there's a conn waiting for us */
libwebsocket_service_fd(context,
&context->
fds[listen_socket_fds_index]);
context->listen_service_extraseen++;
} else {
if (context->listen_service_extraseen)
context->listen_service_extraseen--;
context->
listen_service_extraseen--;
break;
}
}
@ -875,7 +913,8 @@ libwebsocket_service_fd(struct libwebsocket_context *context,
wsi = context->lws_lookup[pollfd->fd];
if (wsi == NULL) {
if (pollfd->fd > 11)
lwsl_err("unexpected NULL wsi fd=%d fds_count=%d\n", pollfd->fd, context->fds_count);
lwsl_err("unexpected NULL wsi fd=%d fds_count=%d\n",
pollfd->fd, context->fds_count);
return 0;
}
@ -926,17 +965,18 @@ read_pending:
if (wsi->ssl) {
eff_buf.token_len = SSL_read(wsi->ssl,
context->service_buffer,
sizeof context->service_buffer);
sizeof(context->service_buffer));
if (!eff_buf.token_len) {
n = SSL_get_error(wsi->ssl, eff_buf.token_len);
lwsl_err("SSL_read returned 0 with reason %s\n",
ERR_error_string(n, (char *)context->service_buffer));
ERR_error_string(n,
(char *)context->service_buffer));
}
} else
#endif
eff_buf.token_len = recv(pollfd->fd,
context->service_buffer,
sizeof context->service_buffer, 0);
context->service_buffer,
sizeof(context->service_buffer), 0);
if (eff_buf.token_len < 0) {
lwsl_debug("Socket read returned %d\n",
@ -947,7 +987,7 @@ read_pending:
return 0;
}
if (!eff_buf.token_len) {
lwsl_info("closing connection due to zero length read\n");
lwsl_info("closing connection due to 0 length read\n");
libwebsocket_close_and_free_session(context, wsi,
LWS_CLOSE_STATUS_NOSTATUS);
return 0;
@ -1047,7 +1087,8 @@ libwebsocket_context_destroy(struct libwebsocket_context *context)
#endif
for (n = 0; n < context->fds_count; n++) {
struct libwebsocket *wsi = context->lws_lookup[context->fds[n].fd];
struct libwebsocket *wsi =
context->lws_lookup[context->fds[n].fd];
libwebsocket_close_and_free_session(context,
wsi, LWS_CLOSE_STATUS_NOSTATUS /* no protocol close */);
n--;
@ -1063,7 +1104,9 @@ libwebsocket_context_destroy(struct libwebsocket_context *context)
if (context->listen_port)
m = LWS_EXT_CALLBACK_SERVER_CONTEXT_DESTRUCT;
while (ext && ext->callback) {
ext->callback(context, ext, NULL, (enum libwebsocket_extension_callback_reasons)m, NULL, NULL, 0);
ext->callback(context, ext, NULL,
(enum libwebsocket_extension_callback_reasons)m,
NULL, NULL, 0);
ext++;
}
@ -1110,7 +1153,7 @@ libwebsocket_context_destroy(struct libwebsocket_context *context)
}
/**
* libwebsocket_context_user() - get the user data associated with the whole context
* libwebsocket_context_user() - get the user data associated with the context
* @context: Websocket context
*
* This returns the optional user allocation that can be attached to
@ -1118,12 +1161,10 @@ libwebsocket_context_destroy(struct libwebsocket_context *context)
* to let all sockets serviced in the same context share data without
* using globals statics in the user code.
*/
LWS_EXTERN void *
libwebsocket_context_user(struct libwebsocket_context *context)
{
return context->user_space;
return context->user_space;
}
/**
@ -1158,7 +1199,6 @@ libwebsocket_context_user(struct libwebsocket_context *context)
* nothing is pending, or as soon as it services whatever was pending.
*/
int
libwebsocket_service(struct libwebsocket_context *context, int timeout_ms)
{
@ -1267,8 +1307,8 @@ libwebsocket_callback_on_writable(struct libwebsocket_context *context,
return 1;
#endif
if (wsi->position_in_fds_table < 0) {
lwsl_err("libwebsocket_callback_on_writable: "
"failed to find socket %d\n", wsi->sock);
lwsl_err("libwebsocket_callback_on_writable: failed to find socket %d\n",
wsi->sock);
return -1;
}
@ -1349,7 +1389,8 @@ libwebsocket_get_socket_fd(struct libwebsocket *wsi)
#ifdef LWS_LATENCY
void
lws_latency(struct libwebsocket_context *context, struct libwebsocket *wsi, const char *action, int ret, int completed)
lws_latency(struct libwebsocket_context *context, struct libwebsocket *wsi,
const char *action, int ret, int completed)
{
struct timeval tv;
unsigned long u;
@ -1362,12 +1403,21 @@ lws_latency(struct libwebsocket_context *context, struct libwebsocket *wsi, cons
if (action) {
if (completed) {
if (wsi->action_start == wsi->latency_start)
sprintf(buf, "Completion first try lat %luus: %p: ret %d: %s\n", u - wsi->latency_start, (void *)wsi, ret, action);
sprintf(buf,
"Completion first try lat %luus: %p: ret %d: %s\n",
u - wsi->latency_start,
(void *)wsi, ret, action);
else
sprintf(buf, "Completion %luus: lat %luus: %p: ret %d: %s\n", u - wsi->action_start, u - wsi->latency_start, (void *)wsi, ret, action);
sprintf(buf,
"Completion %luus: lat %luus: %p: ret %d: %s\n",
u - wsi->action_start,
u - wsi->latency_start,
(void *)wsi, ret, action);
wsi->action_start = 0;
} else
sprintf(buf, "lat %luus: %p: ret %d: %s\n", u - wsi->latency_start, (void *)wsi, ret, action);
sprintf(buf, "lat %luus: %p: ret %d: %s\n",
u - wsi->latency_start,
(void *)wsi, ret, action);
if (u - wsi->latency_start > context->worst_latency) {
context->worst_latency = u - wsi->latency_start;
strcpy(context->worst_latency_info, buf);
@ -1399,13 +1449,14 @@ _libwebsocket_rx_flow_control(struct libwebsocket *wsi)
wsi->u.ws.rxflow_change_to &= ~2;
lwsl_info("rxflow: wsi %p change_to %d\n", wsi, wsi->u.ws.rxflow_change_to);
lwsl_info("rxflow: wsi %p change_to %d\n",
wsi, wsi->u.ws.rxflow_change_to);
/* if we're letting it come again, did we interrupt anything? */
if ((wsi->u.ws.rxflow_change_to & 1) && wsi->u.ws.rxflow_buffer) {
n = libwebsocket_interpret_incoming_packet(wsi, NULL, 0);
if (n < 0) {
lwsl_info("returning that we want to close connection at libwebsocket_rx_flow_control:\n");
lwsl_info("libwebsocket_rx_flow_control: close req\n");
return -1;
}
if (n)
@ -1509,7 +1560,7 @@ OpenSSL_verify_callback(int preverify_ok, X509_STORE_CTX *x509_ctx)
#endif
int user_callback_handle_rxflow(callback_function callback_function,
struct libwebsocket_context * context,
struct libwebsocket_context *context,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason, void *user,
void *in, size_t len)
@ -1575,17 +1626,18 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
#endif
#ifndef LWS_NO_DAEMONIZE
extern int get_daemonize_pid();
int pid_daemon = get_daemonize_pid();
#endif
lwsl_notice("Initial logging level %d\n", log_level);
lwsl_notice("Library version: %s\n", library_version);
lwsl_info(" LWS_MAX_HEADER_NAME_LENGTH: %u\n", LWS_MAX_HEADER_NAME_LENGTH);
lwsl_info(" LWS_MAX_HEADER_NAME_LENGTH: %u\n",
LWS_MAX_HEADER_NAME_LENGTH);
lwsl_info(" LWS_MAX_HEADER_LEN: %u\n", LWS_MAX_HEADER_LEN);
lwsl_info(" LWS_MAX_PROTOCOLS: %u\n", LWS_MAX_PROTOCOLS);
#ifndef LWS_NO_EXTENSIONS
lwsl_info(" LWS_MAX_EXTENSIONS_ACTIVE: %u\n", LWS_MAX_EXTENSIONS_ACTIVE);
lwsl_info(" LWS_MAX_EXTENSIONS_ACTIVE: %u\n",
LWS_MAX_EXTENSIONS_ACTIVE);
#else
lwsl_notice(" Configured without extension support\n");
#endif
@ -1627,7 +1679,8 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
}
#endif
context = (struct libwebsocket_context *) malloc(sizeof(struct libwebsocket_context));
context = (struct libwebsocket_context *)
malloc(sizeof(struct libwebsocket_context));
if (!context) {
lwsl_err("No memory for websocket context\n");
return NULL;
@ -1637,7 +1690,7 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
context->started_with_parent = pid_daemon;
lwsl_notice(" Started with daemon pid %d\n", pid_daemon);
#endif
context->listen_service_extraseen = 0;
context->protocols = info->protocols;
context->listen_port = info->port;
@ -1650,17 +1703,24 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
sizeof(struct libwebsocket_context),
sizeof(struct pollfd) + sizeof(struct libwebsocket *),
context->max_fds,
sizeof(struct libwebsocket_context) + ((sizeof(struct pollfd) + sizeof(struct libwebsocket *)) * context->max_fds));
sizeof(struct libwebsocket_context) +
((sizeof(struct pollfd) + sizeof(struct libwebsocket *)) *
context->max_fds));
context->fds = (struct pollfd *)malloc(sizeof(struct pollfd) * context->max_fds);
context->fds = (struct pollfd *)malloc(sizeof(struct pollfd) *
context->max_fds);
if (context->fds == NULL) {
lwsl_err("Unable to allocate fds array for %d connections\n", context->max_fds);
lwsl_err("Unable to allocate fds array for %d connections\n",
context->max_fds);
free(context);
return NULL;
}
context->lws_lookup = (struct libwebsocket **)malloc(sizeof(struct libwebsocket *) * context->max_fds);
context->lws_lookup = (struct libwebsocket **)
malloc(sizeof(struct libwebsocket *) * context->max_fds);
if (context->lws_lookup == NULL) {
lwsl_err("Unable to allocate lws_lookup array for %d connections\n", context->max_fds);
lwsl_err(
"Unable to allocate lws_lookup array for %d connections\n",
context->max_fds);
free(context->fds);
free(context);
return NULL;
@ -1700,31 +1760,39 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
/* find canonical hostname */
context->service_buffer[(sizeof context->service_buffer) - 1] = '\0';
context->service_buffer[
sizeof(context->service_buffer) - 1] = '\0';
memset(&sa, 0, sizeof(sa));
sa.sa_family = AF_INET;
sa.sa_data[(sizeof sa.sa_data) - 1] = '\0';
gethostname((char *)context->service_buffer, (sizeof context->service_buffer) - 1);
sa.sa_data[sizeof(sa.sa_data) - 1] = '\0';
gethostname((char *)context->service_buffer,
sizeof(context->service_buffer) - 1);
n = 0;
if (strlen((char *)context->service_buffer) < sizeof(sa.sa_data) - 1) {
if (strlen((char *)context->service_buffer) <
sizeof(sa.sa_data) - 1) {
strcpy(sa.sa_data, (char *)context->service_buffer);
lwsl_debug("my host name is %s\n", sa.sa_data);
n = getnameinfo(&sa, sizeof(sa), (char *)context->service_buffer,
(sizeof context->service_buffer) - 1, NULL, 0, NI_NAMEREQD);
n = getnameinfo(&sa, sizeof(sa),
(char *)context->service_buffer,
sizeof(context->service_buffer) - 1,
NULL, 0, NI_NAMEREQD);
}
if (!n) {
strncpy(context->canonical_hostname, (char *)context->service_buffer,
sizeof context->canonical_hostname - 1);
strncpy(context->canonical_hostname,
(char *)context->service_buffer,
sizeof(context->canonical_hostname) - 1);
context->canonical_hostname[
sizeof context->canonical_hostname - 1] = '\0';
sizeof(context->canonical_hostname) - 1] = '\0';
} else
strncpy(context->canonical_hostname, (char *)context->service_buffer,
sizeof context->canonical_hostname - 1);
strncpy(context->canonical_hostname,
(char *)context->service_buffer,
sizeof(context->canonical_hostname) - 1);
lwsl_notice(" canonical_hostname = %s\n", context->canonical_hostname);
lwsl_notice(" canonical_hostname = %s\n",
context->canonical_hostname);
}
#endif
@ -1733,9 +1801,9 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
p = getenv("http_proxy");
if (p) {
strncpy(context->http_proxy_address, p,
sizeof context->http_proxy_address - 1);
sizeof(context->http_proxy_address) - 1);
context->http_proxy_address[
sizeof context->http_proxy_address - 1] = '\0';
sizeof(context->http_proxy_address) - 1] = '\0';
p = strchr(context->http_proxy_address, ':');
if (p == NULL) {
@ -1772,11 +1840,13 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
lwsl_notice(" Not compiled for OpenSSl support!\n");
goto bail;
}
lwsl_notice(" Compiled without SSL support, "
"serving unencrypted\n");
lwsl_notice(" Compiled without SSL support\n");
#endif
lwsl_notice(" per-connection allocation: %u + %u headers (only during handshake) + frame buffer set by protocol\n", sizeof(struct libwebsocket), sizeof(struct allocated_headers));
lwsl_notice(
" per-conn mem: %u + %u headers + protocol rx buf\n",
sizeof(struct libwebsocket),
sizeof(struct allocated_headers));
}
#endif
@ -1807,13 +1877,15 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
method = (SSL_METHOD *)SSLv23_server_method();
if (!method) {
lwsl_err("problem creating ssl method: %s\n",
ERR_error_string(ERR_get_error(), (char *)context->service_buffer));
ERR_error_string(ERR_get_error(),
(char *)context->service_buffer));
goto bail;
}
context->ssl_ctx = SSL_CTX_new(method); /* create context */
if (!context->ssl_ctx) {
lwsl_err("problem creating ssl context: %s\n",
ERR_error_string(ERR_get_error(), (char *)context->service_buffer));
ERR_error_string(ERR_get_error(),
(char *)context->service_buffer));
goto bail;
}
@ -1831,22 +1903,27 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
method = (SSL_METHOD *)SSLv23_client_method();
if (!method) {
lwsl_err("problem creating ssl method: %s\n",
ERR_error_string(ERR_get_error(), (char *)context->service_buffer));
ERR_error_string(ERR_get_error(),
(char *)context->service_buffer));
goto bail;
}
/* create context */
context->ssl_client_ctx = SSL_CTX_new(method);
if (!context->ssl_client_ctx) {
lwsl_err("problem creating ssl context: %s\n",
ERR_error_string(ERR_get_error(), (char *)context->service_buffer));
ERR_error_string(ERR_get_error(),
(char *)context->service_buffer));
goto bail;
}
#ifdef SSL_OP_NO_COMPRESSION
SSL_CTX_set_options(context->ssl_client_ctx, SSL_OP_NO_COMPRESSION);
SSL_CTX_set_options(context->ssl_client_ctx,
SSL_OP_NO_COMPRESSION);
#endif
SSL_CTX_set_options(context->ssl_client_ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
SSL_CTX_set_cipher_list(context->ssl_client_ctx, CIPHERS_LIST_STRING);
SSL_CTX_set_options(context->ssl_client_ctx,
SSL_OP_CIPHER_SERVER_PREFERENCE);
SSL_CTX_set_cipher_list(context->ssl_client_ctx,
CIPHERS_LIST_STRING);
/* openssl init for cert verification (for client sockets) */
if (!info->ssl_ca_filepath) {
@ -1854,10 +1931,10 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
context->ssl_client_ctx, NULL,
LWS_OPENSSL_CLIENT_CERTS))
lwsl_err(
"Unable to load SSL Client certs from %s "
"(set by --with-client-cert-dir= in configure) -- "
" client ssl isn't going to work",
LWS_OPENSSL_CLIENT_CERTS);
"Unable to load SSL Client certs from %s "
"(set by --with-client-cert-dir= "
"in configure) -- client ssl isn't "
"going to work", LWS_OPENSSL_CLIENT_CERTS);
} else
if (!SSL_CTX_load_verify_locations(
context->ssl_client_ctx, info->ssl_ca_filepath,
@ -1880,7 +1957,8 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
/* as a server, are we requiring clients to identify themselves? */
if (info->options & LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT) {
if (info->options &
LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT) {
/* absolutely require the client cert */
@ -1908,7 +1986,8 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
if (n != 1) {
lwsl_err("problem getting cert '%s': %s\n",
info->ssl_cert_filepath,
ERR_error_string(ERR_get_error(), (char *)context->service_buffer));
ERR_error_string(ERR_get_error(),
(char *)context->service_buffer));
goto bail;
}
/* set the private key from KeyFile */
@ -1916,8 +1995,9 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
info->ssl_private_key_filepath,
SSL_FILETYPE_PEM) != 1) {
lwsl_err("ssl problem getting key '%s': %s\n",
info->ssl_private_key_filepath,
ERR_error_string(ERR_get_error(), (char *)context->service_buffer));
info->ssl_private_key_filepath,
ERR_error_string(ERR_get_error(),
(char *)context->service_buffer));
goto bail;
}
/* verify private key */
@ -1939,7 +2019,6 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
/* set up our external listening socket we serve on */
if (info->port) {
extern int interface_to_sa(const char *ifname, struct sockaddr_in *addr, size_t addrlen);
int sockfd;
sockfd = socket(AF_INET, SOCK_STREAM, 0);
@ -1949,10 +2028,13 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
}
#ifndef WIN32
/* allow us to restart even if old sockets in TIME_WAIT
* (REUSEADDR on Unix means, "don't hang on to this address after the
* listener is closed." On Windows, though, it means "don't keep other
* processes from binding to this address while we're using it) */
/*
* allow us to restart even if old sockets in TIME_WAIT
* (REUSEADDR on Unix means, "don't hang on to this
* address after the listener is closed." On Windows, though,
* it means "don't keep other processes from binding to
* this address while we're using it)
*/
setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR,
(const void *)&opt, sizeof(opt));
#endif
@ -1964,7 +2046,7 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
#ifdef WIN32
opt = 0;
ioctlsocket(sockfd, FIONBIO, (unsigned long *)&opt );
ioctlsocket(sockfd, FIONBIO, (unsigned long *)&opt);
#else
fcntl(sockfd, F_SETFL, O_NONBLOCK);
#endif
@ -1987,13 +2069,14 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
goto bail;
}
wsi = (struct libwebsocket *)malloc(sizeof(struct libwebsocket));
wsi = (struct libwebsocket *)malloc(
sizeof(struct libwebsocket));
if (wsi == NULL) {
lwsl_err("Out of mem\n");
close(sockfd);
goto bail;
}
memset(wsi, 0, sizeof (struct libwebsocket));
memset(wsi, 0, sizeof(struct libwebsocket));
wsi->sock = sockfd;
#ifndef LWS_NO_EXTENSIONS
wsi->count_active_extensions = 0;
@ -2057,7 +2140,7 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
m = LWS_EXT_CALLBACK_CLIENT_CONTEXT_CONSTRUCT;
if (info->port)
m = LWS_EXT_CALLBACK_SERVER_CONTEXT_CONSTRUCT;
if (info->extensions) {
ext = info->extensions;
while (ext->callback) {
@ -2134,10 +2217,10 @@ static void lwsl_emit_stderr(int level, const char *line)
for (n = 0; n < LLL_COUNT; n++)
if (level == (1 << n)) {
sprintf(buf, "[%ld:%04d] %s: ", tv.tv_sec,
(int)(tv.tv_usec / 100), log_level_names[n]);
(int)(tv.tv_usec / 100), log_level_names[n]);
break;
}
fprintf(stderr, "%s%s", buf, line);
}
@ -2178,8 +2261,8 @@ void _lws_log(int filter, const char *format, ...)
return;
va_start(ap, format);
vsnprintf(buf, (sizeof buf), format, ap);
buf[(sizeof buf) - 1] = '\0';
vsnprintf(buf, sizeof(buf), format, ap);
buf[sizeof(buf) - 1] = '\0';
va_end(ap);
lwsl_emit(filter, buf);
@ -2196,7 +2279,8 @@ void _lws_log(int filter, const char *format, ...)
* emission on stderr.
*/
void lws_set_log_level(int level, void (*log_emit_function)(int level, const char *line))
void lws_set_log_level(int level, void (*log_emit_function)(int level,
const char *line))
{
log_level = level;
if (log_emit_function)

132
lib/libwebsockets.h
View file

@ -360,8 +360,8 @@ enum lws_close_status {
LWS_CLOSE_STATUS_POLICY_VIOLATION = 1008,
LWS_CLOSE_STATUS_MESSAGE_TOO_LARGE = 1009,
LWS_CLOSE_STATUS_EXTENSION_REQUIRED = 1010,
LWS_CLOSE_STATUS_UNEXPECTED_CONDITION = 1011,
LWS_CLOSE_STATUS_TLS_FAILURE = 1015,
LWS_CLOSE_STATUS_UNEXPECTED_CONDITION = 1011,
LWS_CLOSE_STATUS_TLS_FAILURE = 1015,
};
struct libwebsocket;
@ -395,12 +395,12 @@ struct libwebsocket_extension;
* been unable to complete a handshake with the remote server
*
* LWS_CALLBACK_CLIENT_FILTER_PRE_ESTABLISH: this is the last chance for the
* client user code to examine the http headers
* and decide to reject the connection. If the
* content in the headers is interesting to the
* client (url, etc) it needs to copy it out at
* this point since it will be destroyed before
* the CLIENT_ESTABLISHED call
* client user code to examine the http headers
* and decide to reject the connection. If the
* content in the headers is interesting to the
* client (url, etc) it needs to copy it out at
* this point since it will be destroyed before
* the CLIENT_ESTABLISHED call
*
* LWS_CALLBACK_CLIENT_ESTABLISHED: after your client connection completed
* a handshake with the remote server
@ -455,22 +455,22 @@ struct libwebsocket_extension;
* or not, based on the client IP. @user contains the connection
* socket's descriptor. Return non-zero to terminate
* the connection before sending or receiving anything.
* Because this happens immediately after the network connection
* Because this happens immediately after the network connection
* from the client, there's no websocket protocol selected yet so
* this callback is issued only to protocol 0.
*
* LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION: called when the handshake has
* been received and parsed from the client, but the response is
* not sent yet. Return non-zero to disallow the connection.
* LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION: called when the handshake has
* been received and parsed from the client, but the response is
* not sent yet. Return non-zero to disallow the connection.
* @user is a pointer to an array of struct lws_tokens, you can
* use the header enums lws_token_indexes from libwebsockets.h
* to check for and read the supported header presence and
* content before deciding to allow the handshake to proceed or
* to kill the connection.
*
* LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS: if configured for
* including OpenSSL support, this callback allows your user code
* to perform extra SSL_CTX_load_verify_locations() or similar
* LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS: if configured for
* including OpenSSL support, this callback allows your user code
* to perform extra SSL_CTX_load_verify_locations() or similar
* calls to direct OpenSSL where to find certificates the client
* can use to confirm the remote server identity. @user is the
* OpenSSL SSL_CTX*
@ -510,8 +510,8 @@ struct libwebsocket_extension;
*
* char **p = (char **)in;
*
* if (len < 100)
* return 1;
* if (len < 100)
* return 1;
*
* *p += sprintf(*p, "Cookie: a=b\x0d\x0a");
*
@ -521,10 +521,10 @@ struct libwebsocket_extension;
* the CRLF on the line you added. Obviously this callback is
* optional, if you don't handle it everything is fine.
*
* Notice the callback is coming to protocols[0] all the time,
* Notice the callback is coming to protocols[0] all the time,
* because there is no specific protocol handshook yet.
*
* LWS_CALLBACK_CONFIRM_EXTENSION_OKAY: When the server handshake code
* LWS_CALLBACK_CONFIRM_EXTENSION_OKAY: When the server handshake code
* sees that it does support a requested extension, before
* accepting the extension by additing to the list sent back to
* the client it gives this callback just to check that it's okay
@ -553,45 +553,45 @@ struct libwebsocket_extension;
* deallocate everything that was allocated by the protocol.
*
* The next four reasons are optional and only need taking care of if you
* will be integrating libwebsockets sockets into an external polling
* array.
*
* LWS_CALLBACK_ADD_POLL_FD: libwebsocket deals with its poll() loop
* internally, but in the case you are integrating with another
* server you will need to have libwebsocket sockets share a
* polling array with the other server. This and the other
* POLL_FD related callbacks let you put your specialized
* poll array interface code in the callback for protocol 0, the
* first protocol you support, usually the HTTP protocol in the
* serving case. This callback happens when a socket needs to be
* will be integrating libwebsockets sockets into an external polling
* array.
*
* LWS_CALLBACK_ADD_POLL_FD: libwebsocket deals with its poll() loop
* internally, but in the case you are integrating with another
* server you will need to have libwebsocket sockets share a
* polling array with the other server. This and the other
* POLL_FD related callbacks let you put your specialized
* poll array interface code in the callback for protocol 0, the
* first protocol you support, usually the HTTP protocol in the
* serving case. This callback happens when a socket needs to be
* added to the polling loop: @user contains the fd, and
* @len is the events bitmap (like, POLLIN). If you are using the
* @len is the events bitmap (like, POLLIN). If you are using the
* internal polling loop (the "service" callback), you can just
* ignore these callbacks.
* ignore these callbacks.
*
* LWS_CALLBACK_DEL_POLL_FD: This callback happens when a socket descriptor
* needs to be removed from an external polling array. @user is
* the socket desricptor. If you are using the internal polling
* loop, you can just ignore it.
* LWS_CALLBACK_DEL_POLL_FD: This callback happens when a socket descriptor
* needs to be removed from an external polling array. @user is
* the socket desricptor. If you are using the internal polling
* loop, you can just ignore it.
*
* LWS_CALLBACK_SET_MODE_POLL_FD: This callback happens when libwebsockets
* wants to modify the events for the socket descriptor in @user.
* LWS_CALLBACK_SET_MODE_POLL_FD: This callback happens when libwebsockets
* wants to modify the events for the socket descriptor in @user.
* The handler should OR @len on to the events member of the pollfd
* struct for this socket descriptor. If you are using the
* struct for this socket descriptor. If you are using the
* internal polling loop, you can just ignore it.
*
* LWS_CALLBACK_CLEAR_MODE_POLL_FD: This callback occurs when libwebsockets
* wants to modify the events for the socket descriptor in @user.
* wants to modify the events for the socket descriptor in @user.
* The handler should AND ~@len on to the events member of the
* pollfd struct for this socket descriptor. If you are using the
* pollfd struct for this socket descriptor. If you are using the
* internal polling loop, you can just ignore it.
*/
LWS_EXTERN int callback(struct libwebsocket_context * context,
LWS_EXTERN int callback(struct libwebsocket_context *context,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason, void *user,
void *in, size_t len);
typedef int (callback_function)(struct libwebsocket_context * context,
typedef int (callback_function)(struct libwebsocket_context *context,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason, void *user,
void *in, size_t len);
@ -622,7 +622,7 @@ typedef int (callback_function)(struct libwebsocket_context * context,
* extension a chance to initialize its connection context found
* in @user.
*
* LWS_EXT_CALLBACK_CLIENT_CONSTRUCT: same as LWS_EXT_CALLBACK_CONSTRUCT
* LWS_EXT_CALLBACK_CLIENT_CONSTRUCT: same as LWS_EXT_CALLBACK_CONSTRUCT
* but called when client is instantiating this extension. Some
* extensions will work the same on client and server side and then
* you can just merge handlers for both CONSTRUCTS.
@ -655,17 +655,17 @@ typedef int (callback_function)(struct libwebsocket_context * context,
* buffer safely, it should copy the data into its own buffer and
* set the lws_tokens token pointer to it.
*/
LWS_EXTERN int extension_callback(struct libwebsocket_context * context,
LWS_EXTERN int extension_callback(struct libwebsocket_context *context,
struct libwebsocket_extension *ext,
struct libwebsocket *wsi,
enum libwebsocket_extension_callback_reasons reason, void *user,
void *in, size_t len);
enum libwebsocket_extension_callback_reasons reason,
void *user, void *in, size_t len);
typedef int (extension_callback_function)(struct libwebsocket_context * context,
typedef int (extension_callback_function)(struct libwebsocket_context *context,
struct libwebsocket_extension *ext,
struct libwebsocket *wsi,
enum libwebsocket_extension_callback_reasons reason, void *user,
void *in, size_t len);
enum libwebsocket_extension_callback_reasons reason,
void *user, void *in, size_t len);
#endif
/**
@ -681,13 +681,13 @@ typedef int (extension_callback_function)(struct libwebsocket_context * context,
* freed on connection takedown. A pointer to this per-connection
* allocation is passed into the callback in the 'user' parameter
* @rx_buffer_size: if you want atomic frames delivered to the callback, you
* should set this to the size of the biggest legal frame that
* you support. If the frame size is exceeded, there is no
* error, but the buffer will spill to the user callback when
* full, which you can detect by using
* libwebsockets_remaining_packet_payload(). Notice that you
* just talk about frame size here, the LWS_SEND_BUFFER_PRE_PADDING
* and post-padding are automatically also allocated on top.
* should set this to the size of the biggest legal frame that
* you support. If the frame size is exceeded, there is no
* error, but the buffer will spill to the user callback when
* full, which you can detect by using
* libwebsockets_remaining_packet_payload(). Notice that you
* just talk about frame size here, the LWS_SEND_BUFFER_PRE_PADDING
* and post-padding are automatically also allocated on top.
* @owning_server: the server init call fills in this opaque pointer when
* registering this protocol with the server.
* @protocol_index: which protocol we are starting from zero
@ -718,19 +718,19 @@ struct libwebsocket_protocols {
*
* @name: Formal extension name, eg, "deflate-stream"
* @callback: Service callback
* @per_session_data_size: Libwebsockets will auto-malloc this much
* memory for the use of the extension, a pointer
* @per_session_data_size: Libwebsockets will auto-malloc this much
* memory for the use of the extension, a pointer
* to it comes in the @user callback parameter
* @per_context_private_data: Optional storage for this extension that
* is per-context, so it can track stuff across
* all sessions, etc, if it wants
* is per-context, so it can track stuff across
* all sessions, etc, if it wants
*/
struct libwebsocket_extension {
const char *name;
extension_callback_function *callback;
size_t per_session_data_size;
void * per_context_private_data;
void *per_context_private_data;
};
#endif
@ -759,7 +759,7 @@ struct libwebsocket_extension {
* @uid: user id to change to after setting listen socket, or -1.
* @options: 0, or LWS_SERVER_OPTION_DEFEAT_CLIENT_MASK
* @user: optional user pointer that can be recovered via the context
* pointer using libwebsocket_context_user
* pointer using libwebsocket_context_user
* @ka_time: 0 for no keepalive, otherwise apply this keepalive timeout to
* all libwebsocket sockets, client or server
* @ka_probes: if ka_time was nonzero, after the timeout expires how many
@ -788,7 +788,8 @@ struct lws_context_creation_info {
};
LWS_EXTERN
void lws_set_log_level(int level, void (*log_emit_function)(int level, const char *line));
void lws_set_log_level(int level,
void (*log_emit_function)(int level, const char *line));
LWS_EXTERN void
lwsl_emit_syslog(int level, const char *line);
@ -954,7 +955,8 @@ extern int
lws_hdr_total_length(struct libwebsocket *wsi, enum lws_token_indexes h);
extern int
lws_hdr_copy(struct libwebsocket *wsi, char *dest, int len, enum lws_token_indexes h);
lws_hdr_copy(struct libwebsocket *wsi, char *dest, int len,
enum lws_token_indexes h);
/*
* Note: this is not normally needed as a user api. It's provided in case it is

50
lib/output.c
View file

@ -33,7 +33,7 @@ libwebsocket_0405_frame_mask_generate(struct libwebsocket *wsi)
/* fetch the per-frame nonce */
n = libwebsockets_get_random(wsi->protocol->owning_server,
wsi->u.ws.frame_masking_nonce_04, 4);
wsi->u.ws.frame_masking_nonce_04, 4);
if (n != 4) {
lwsl_parser("Unable to read from random device %s %d\n",
SYSTEM_RANDOM_FILEPATH, n);
@ -147,7 +147,7 @@ int lws_issue_raw(struct libwebsocket *wsi, unsigned char *buf, size_t len)
n = send(wsi->sock, buf, len, MSG_NOSIGNAL);
lws_latency(context, wsi, "send lws_issue_raw", n, n == len);
if (n != len) {
lwsl_debug("ERROR writing len %d to socket %d\n", len, n);
lwsl_debug("ERROR writing len %d to skt %d\n", len, n);
return -1;
}
#ifdef LWS_OPENSSL_SUPPORT
@ -372,8 +372,7 @@ int libwebsocket_write(struct libwebsocket *wsi, unsigned char *buf,
n = LWS_WS_OPCODE_07__PONG;
break;
default:
lwsl_warn("libwebsocket_write: unknown write "
"opcode / protocol\n");
lwsl_warn("lws_write: unknown write opc / protocol\n");
return -1;
}
@ -423,8 +422,7 @@ int libwebsocket_write(struct libwebsocket *wsi, unsigned char *buf,
if (wsi->mode == LWS_CONNMODE_WS_CLIENT) {
if (libwebsocket_0405_frame_mask_generate(wsi)) {
lwsl_err("libwebsocket_write: "
"frame mask generation failed\n");
lwsl_err("lws_write: frame mask generation failed\n");
return 1;
}
@ -432,7 +430,9 @@ int libwebsocket_write(struct libwebsocket *wsi, unsigned char *buf,
* in v7, just mask the payload
*/
for (n = 4; n < (int)len + 4; n++)
dropmask[n] = dropmask[n] ^ wsi->u.ws.frame_masking_nonce_04[(wsi->u.ws.frame_mask_index++) & 3];
dropmask[n] = dropmask[n] ^
wsi->u.ws.frame_masking_nonce_04[
(wsi->u.ws.frame_mask_index++) & 3];
if (dropmask)
/* copy the frame nonce into place */
@ -449,7 +449,7 @@ send_raw:
switch (protocol) {
case LWS_WRITE_CLOSE:
// lwsl_hexdump(&buf[-pre], len + post);
/* lwsl_hexdump(&buf[-pre], len + post); */
case LWS_WRITE_HTTP:
case LWS_WRITE_PONG:
case LWS_WRITE_PING:
@ -479,28 +479,33 @@ send_raw:
return lws_issue_raw_ext_access(wsi, buf - pre, len + pre + post);
}
int libwebsockets_serve_http_file_fragment(struct libwebsocket_context *context,
struct libwebsocket *wsi)
int libwebsockets_serve_http_file_fragment(
struct libwebsocket_context *context, struct libwebsocket *wsi)
{
int ret = 0;
int n;
while (!lws_send_pipe_choked(wsi)) {
n = read(wsi->u.http.fd, context->service_buffer, sizeof(context->service_buffer));
n = read(wsi->u.http.fd, context->service_buffer,
sizeof(context->service_buffer));
if (n > 0) {
libwebsocket_write(wsi, context->service_buffer, n, LWS_WRITE_HTTP);
libwebsocket_write(wsi, context->service_buffer, n,
LWS_WRITE_HTTP);
wsi->u.http.filepos += n;
}
if (n < 0)
return 1; /* caller will close */
if (n < sizeof(context->service_buffer) || wsi->u.http.filepos == wsi->u.http.filelen) {
if (n < sizeof(context->service_buffer) ||
wsi->u.http.filepos == wsi->u.http.filelen) {
wsi->state = WSI_STATE_HTTP;
if (wsi->protocol->callback)
ret = user_callback_handle_rxflow(wsi->protocol->callback, context, wsi, LWS_CALLBACK_HTTP_FILE_COMPLETION, wsi->user_space,
NULL, 0);
ret = user_callback_handle_rxflow(
wsi->protocol->callback, context, wsi,
LWS_CALLBACK_HTTP_FILE_COMPLETION,
wsi->user_space, NULL, 0);
return ret;
}
}
@ -543,9 +548,8 @@ int libwebsockets_serve_http_file(struct libwebsocket_context *context,
);
if (wsi->u.http.fd < 1) {
p += sprintf((char *)p, "HTTP/1.0 400 Bad\x0d\x0a"
"Server: libwebsockets\x0d\x0a"
"\x0d\x0a"
p += sprintf((char *)p,
"HTTP/1.0 400 Bad\x0d\x0aServer: libwebsockets\x0d\x0a\x0d\x0a"
);
wsi->u.http.fd = 0;
libwebsocket_write(wsi, context->service_buffer,
@ -556,11 +560,11 @@ int libwebsockets_serve_http_file(struct libwebsocket_context *context,
fstat(wsi->u.http.fd, &stat_buf);
wsi->u.http.filelen = stat_buf.st_size;
p += sprintf((char *)p, "HTTP/1.0 200 OK\x0d\x0a"
"Server: libwebsockets\x0d\x0a"
"Content-Type: %s\x0d\x0a"
"Content-Length: %u\x0d\x0a"
"\x0d\x0a", content_type,
p += sprintf((char *)p,
"HTTP/1.0 200 OK\x0d\x0aServer: libwebsockets\x0d\x0aContent-Type: %s\x0d\x0a",
content_type);
p += sprintf((char *)p,
"Content-Length: %u\x0d\x0a\x0d\x0a",
(unsigned int)stat_buf.st_size);
ret = libwebsocket_write(wsi, context->service_buffer,

684
lib/parsers.c
View file

@ -27,273 +27,273 @@
unsigned char lextable[] = {
/* pos 0: state 0 */
0x47 /* 'G' */, 0x07 /* to pos 14 state 1 */,
0x48 /* 'H' */, 0x0A /* to pos 22 state 5 */,
0x43 /* 'C' */, 0x0F /* to pos 34 state 10 */,
0x53 /* 'S' */, 0x19 /* to pos 56 state 21 */,
0x55 /* 'U' */, 0x3F /* to pos 134 state 51 */,
0x4F /* 'O' */, 0x46 /* to pos 150 state 59 */,
0x8D /* '.' */, 0x52 /* to pos 176 state 72 */,
/* pos 14: state 1 */
0xC5 /* 'E' */, 0x01 /* to pos 16 state 2 */,
/* pos 16: state 2 */
0xD4 /* 'T' */, 0x01 /* to pos 18 state 3 */,
/* pos 18: state 3 */
0xA0 /* ' ' */, 0x01 /* to pos 20 state 4 */,
/* pos 20: state 4 */
0x80, 0x00 /* terminal marker */,
/* pos 22: state 5 */
0x6F /* 'o' */, 0x02 /* to pos 26 state 6 */,
0xD4 /* 'T' */, 0x76 /* to pos 260 state 114 */,
/* pos 26: state 6 */
0xF3 /* 's' */, 0x01 /* to pos 28 state 7 */,
/* pos 28: state 7 */
0xF4 /* 't' */, 0x01 /* to pos 30 state 8 */,
/* pos 30: state 8 */
0xBA /* ':' */, 0x01 /* to pos 32 state 9 */,
/* pos 32: state 9 */
0x81, 0x00 /* terminal marker */,
/* pos 34: state 10 */
0xEF /* 'o' */, 0x01 /* to pos 36 state 11 */,
/* pos 36: state 11 */
0xEE /* 'n' */, 0x01 /* to pos 38 state 12 */,
/* pos 38: state 12 */
0xEE /* 'n' */, 0x01 /* to pos 40 state 13 */,
/* pos 40: state 13 */
0xE5 /* 'e' */, 0x01 /* to pos 42 state 14 */,
/* pos 42: state 14 */
0xE3 /* 'c' */, 0x01 /* to pos 44 state 15 */,
/* pos 44: state 15 */
0xF4 /* 't' */, 0x01 /* to pos 46 state 16 */,
/* pos 46: state 16 */
0xE9 /* 'i' */, 0x01 /* to pos 48 state 17 */,
/* pos 48: state 17 */
0xEF /* 'o' */, 0x01 /* to pos 50 state 18 */,
/* pos 50: state 18 */
0xEE /* 'n' */, 0x01 /* to pos 52 state 19 */,
/* pos 52: state 19 */
0xBA /* ':' */, 0x01 /* to pos 54 state 20 */,
/* pos 54: state 20 */
0x82, 0x00 /* terminal marker */,
/* pos 56: state 21 */
0xE5 /* 'e' */, 0x01 /* to pos 58 state 22 */,
/* pos 58: state 22 */
0xE3 /* 'c' */, 0x01 /* to pos 60 state 23 */,
/* pos 60: state 23 */
0xAD /* '-' */, 0x01 /* to pos 62 state 24 */,
/* pos 62: state 24 */
0xD7 /* 'W' */, 0x01 /* to pos 64 state 25 */,
/* pos 64: state 25 */
0xE5 /* 'e' */, 0x01 /* to pos 66 state 26 */,
/* pos 66: state 26 */
0xE2 /* 'b' */, 0x01 /* to pos 68 state 27 */,
/* pos 68: state 27 */
0xD3 /* 'S' */, 0x01 /* to pos 70 state 28 */,
/* pos 70: state 28 */
0xEF /* 'o' */, 0x01 /* to pos 72 state 29 */,
/* pos 72: state 29 */
0xE3 /* 'c' */, 0x01 /* to pos 74 state 30 */,
/* pos 74: state 30 */
0xEB /* 'k' */, 0x01 /* to pos 76 state 31 */,
/* pos 76: state 31 */
0xE5 /* 'e' */, 0x01 /* to pos 78 state 32 */,
/* pos 78: state 32 */
0xF4 /* 't' */, 0x01 /* to pos 80 state 33 */,
/* pos 80: state 33 */
0xAD /* '-' */, 0x01 /* to pos 82 state 34 */,
/* pos 82: state 34 */
0x4B /* 'K' */, 0x08 /* to pos 98 state 35 */,
0x50 /* 'P' */, 0x10 /* to pos 116 state 42 */,
0x44 /* 'D' */, 0x27 /* to pos 164 state 66 */,
0x56 /* 'V' */, 0x2F /* to pos 182 state 75 */,
0x4F /* 'O' */, 0x36 /* to pos 198 state 83 */,
0x45 /* 'E' */, 0x3C /* to pos 212 state 90 */,
0x41 /* 'A' */, 0x46 /* to pos 234 state 101 */,
0xCE /* 'N' */, 0x4C /* to pos 248 state 108 */,
/* pos 98: state 35 */
0xE5 /* 'e' */, 0x01 /* to pos 100 state 36 */,
/* pos 100: state 36 */
0xF9 /* 'y' */, 0x01 /* to pos 102 state 37 */,
/* pos 102: state 37 */
0x31 /* '1' */, 0x03 /* to pos 108 state 38 */,
0x32 /* '2' */, 0x04 /* to pos 112 state 40 */,
0xBA /* ':' */, 0x25 /* to pos 180 state 74 */,
/* pos 108: state 38 */
0xBA /* ':' */, 0x01 /* to pos 110 state 39 */,
/* pos 110: state 39 */
0x83, 0x00 /* terminal marker */,
/* pos 112: state 40 */
0xBA /* ':' */, 0x01 /* to pos 114 state 41 */,
/* pos 114: state 41 */
0x84, 0x00 /* terminal marker */,
/* pos 116: state 42 */
0xF2 /* 'r' */, 0x01 /* to pos 118 state 43 */,
/* pos 118: state 43 */
0xEF /* 'o' */, 0x01 /* to pos 120 state 44 */,
/* pos 120: state 44 */
0xF4 /* 't' */, 0x01 /* to pos 122 state 45 */,
/* pos 122: state 45 */
0xEF /* 'o' */, 0x01 /* to pos 124 state 46 */,
/* pos 124: state 46 */
0xE3 /* 'c' */, 0x01 /* to pos 126 state 47 */,
/* pos 126: state 47 */
0xEF /* 'o' */, 0x01 /* to pos 128 state 48 */,
/* pos 128: state 48 */
0xEC /* 'l' */, 0x01 /* to pos 130 state 49 */,
/* pos 130: state 49 */
0xBA /* ':' */, 0x01 /* to pos 132 state 50 */,
/* pos 132: state 50 */
0x85, 0x00 /* terminal marker */,
/* pos 134: state 51 */
0xF0 /* 'p' */, 0x01 /* to pos 136 state 52 */,
/* pos 136: state 52 */
0xE7 /* 'g' */, 0x01 /* to pos 138 state 53 */,
/* pos 138: state 53 */
0xF2 /* 'r' */, 0x01 /* to pos 140 state 54 */,
/* pos 140: state 54 */
0xE1 /* 'a' */, 0x01 /* to pos 142 state 55 */,
/* pos 142: state 55 */
0xE4 /* 'd' */, 0x01 /* to pos 144 state 56 */,
/* pos 144: state 56 */
0xE5 /* 'e' */, 0x01 /* to pos 146 state 57 */,
/* pos 146: state 57 */
0xBA /* ':' */, 0x01 /* to pos 148 state 58 */,
/* pos 148: state 58 */
0x86, 0x00 /* terminal marker */,
/* pos 150: state 59 */
0xF2 /* 'r' */, 0x01 /* to pos 152 state 60 */,
/* pos 152: state 60 */
0xE9 /* 'i' */, 0x01 /* to pos 154 state 61 */,
/* pos 154: state 61 */
0xE7 /* 'g' */, 0x01 /* to pos 156 state 62 */,
/* pos 156: state 62 */
0xE9 /* 'i' */, 0x01 /* to pos 158 state 63 */,
/* pos 158: state 63 */
0xEE /* 'n' */, 0x01 /* to pos 160 state 64 */,
/* pos 160: state 64 */
0xBA /* ':' */, 0x01 /* to pos 162 state 65 */,
/* pos 162: state 65 */
0x87, 0x00 /* terminal marker */,
/* pos 164: state 66 */
0xF2 /* 'r' */, 0x01 /* to pos 166 state 67 */,
/* pos 166: state 67 */
0xE1 /* 'a' */, 0x01 /* to pos 168 state 68 */,
/* pos 168: state 68 */
0xE6 /* 'f' */, 0x01 /* to pos 170 state 69 */,
/* pos 170: state 69 */
0xF4 /* 't' */, 0x01 /* to pos 172 state 70 */,
/* pos 172: state 70 */
0xBA /* ':' */, 0x01 /* to pos 174 state 71 */,
/* pos 174: state 71 */
0x88, 0x00 /* terminal marker */,
/* pos 176: state 72 */
0x8A /* '.' */, 0x01 /* to pos 178 state 73 */,
/* pos 178: state 73 */
0x89, 0x00 /* terminal marker */,
/* pos 180: state 74 */
0x8A, 0x00 /* terminal marker */,
/* pos 182: state 75 */
0xE5 /* 'e' */, 0x01 /* to pos 184 state 76 */,
/* pos 184: state 76 */
0xF2 /* 'r' */, 0x01 /* to pos 186 state 77 */,
/* pos 186: state 77 */
0xF3 /* 's' */, 0x01 /* to pos 188 state 78 */,
/* pos 188: state 78 */
0xE9 /* 'i' */, 0x01 /* to pos 190 state 79 */,
/* pos 190: state 79 */
0xEF /* 'o' */, 0x01 /* to pos 192 state 80 */,
/* pos 192: state 80 */
0xEE /* 'n' */, 0x01 /* to pos 194 state 81 */,
/* pos 194: state 81 */
0xBA /* ':' */, 0x01 /* to pos 196 state 82 */,
/* pos 196: state 82 */
0x8B, 0x00 /* terminal marker */,
/* pos 198: state 83 */
0xF2 /* 'r' */, 0x01 /* to pos 200 state 84 */,
/* pos 200: state 84 */
0xE9 /* 'i' */, 0x01 /* to pos 202 state 85 */,
/* pos 202: state 85 */
0xE7 /* 'g' */, 0x01 /* to pos 204 state 86 */,
/* pos 204: state 86 */
0xE9 /* 'i' */, 0x01 /* to pos 206 state 87 */,
/* pos 206: state 87 */
0xEE /* 'n' */, 0x01 /* to pos 208 state 88 */,
/* pos 208: state 88 */
0xBA /* ':' */, 0x01 /* to pos 210 state 89 */,
/* pos 210: state 89 */
0x8C, 0x00 /* terminal marker */,
/* pos 212: state 90 */
0xF8 /* 'x' */, 0x01 /* to pos 214 state 91 */,
/* pos 214: state 91 */
0xF4 /* 't' */, 0x01 /* to pos 216 state 92 */,
/* pos 216: state 92 */
0xE5 /* 'e' */, 0x01 /* to pos 218 state 93 */,
/* pos 218: state 93 */
0xEE /* 'n' */, 0x01 /* to pos 220 state 94 */,
/* pos 220: state 94 */
0xF3 /* 's' */, 0x01 /* to pos 222 state 95 */,
/* pos 222: state 95 */
0xE9 /* 'i' */, 0x01 /* to pos 224 state 96 */,
/* pos 224: state 96 */
0xEF /* 'o' */, 0x01 /* to pos 226 state 97 */,
/* pos 226: state 97 */
0xEE /* 'n' */, 0x01 /* to pos 228 state 98 */,
/* pos 228: state 98 */
0xF3 /* 's' */, 0x01 /* to pos 230 state 99 */,
/* pos 230: state 99 */
0xBA /* ':' */, 0x01 /* to pos 232 state 100 */,
/* pos 232: state 100 */
0x8D, 0x00 /* terminal marker */,
/* pos 234: state 101 */
0xE3 /* 'c' */, 0x01 /* to pos 236 state 102 */,
/* pos 236: state 102 */
0xE3 /* 'c' */, 0x01 /* to pos 238 state 103 */,
/* pos 238: state 103 */
0xE5 /* 'e' */, 0x01 /* to pos 240 state 104 */,
/* pos 240: state 104 */
0xF0 /* 'p' */, 0x01 /* to pos 242 state 105 */,
/* pos 242: state 105 */
0xF4 /* 't' */, 0x01 /* to pos 244 state 106 */,
/* pos 244: state 106 */
0xBA /* ':' */, 0x01 /* to pos 246 state 107 */,
/* pos 246: state 107 */
0x8E, 0x00 /* terminal marker */,
/* pos 248: state 108 */
0xEF /* 'o' */, 0x01 /* to pos 250 state 109 */,
/* pos 250: state 109 */
0xEE /* 'n' */, 0x01 /* to pos 252 state 110 */,
/* pos 252: state 110 */
0xE3 /* 'c' */, 0x01 /* to pos 254 state 111 */,
/* pos 254: state 111 */
0xE5 /* 'e' */, 0x01 /* to pos 256 state 112 */,
/* pos 256: state 112 */
0xBA /* ':' */, 0x01 /* to pos 258 state 113 */,
/* pos 258: state 113 */
0x8F, 0x00 /* terminal marker */,
/* pos 260: state 114 */
0xD4 /* 'T' */, 0x01 /* to pos 262 state 115 */,
/* pos 262: state 115 */
0xD0 /* 'P' */, 0x01 /* to pos 264 state 116 */,
/* pos 264: state 116 */
0xAF /* '/' */, 0x01 /* to pos 266 state 117 */,
/* pos 266: state 117 */
0xB1 /* '1' */, 0x01 /* to pos 268 state 118 */,
/* pos 268: state 118 */
0xAE /* '.' */, 0x01 /* to pos 270 state 119 */,
/* pos 270: state 119 */
0xB1 /* '1' */, 0x01 /* to pos 272 state 120 */,
/* pos 272: state 120 */
0xA0 /* ' ' */, 0x01 /* to pos 274 state 121 */,
/* pos 274: state 121 */
0x90, 0x00 /* terminal marker */,
/* total size 276 bytes */
/* pos 0: state 0 */
0x47 /* 'G' */, 0x07 /* to pos 14 state 1 */,
0x48 /* 'H' */, 0x0A /* to pos 22 state 5 */,
0x43 /* 'C' */, 0x0F /* to pos 34 state 10 */,
0x53 /* 'S' */, 0x19 /* to pos 56 state 21 */,
0x55 /* 'U' */, 0x3F /* to pos 134 state 51 */,
0x4F /* 'O' */, 0x46 /* to pos 150 state 59 */,
0x8D /* '.' */, 0x52 /* to pos 176 state 72 */,
/* pos 14: state 1 */
0xC5 /* 'E' */, 0x01 /* to pos 16 state 2 */,
/* pos 16: state 2 */
0xD4 /* 'T' */, 0x01 /* to pos 18 state 3 */,
/* pos 18: state 3 */
0xA0 /* ' ' */, 0x01 /* to pos 20 state 4 */,
/* pos 20: state 4 */
0x80, 0x00 /* terminal marker */,
/* pos 22: state 5 */
0x6F /* 'o' */, 0x02 /* to pos 26 state 6 */,
0xD4 /* 'T' */, 0x76 /* to pos 260 state 114 */,
/* pos 26: state 6 */
0xF3 /* 's' */, 0x01 /* to pos 28 state 7 */,
/* pos 28: state 7 */
0xF4 /* 't' */, 0x01 /* to pos 30 state 8 */,
/* pos 30: state 8 */
0xBA /* ':' */, 0x01 /* to pos 32 state 9 */,
/* pos 32: state 9 */
0x81, 0x00 /* terminal marker */,
/* pos 34: state 10 */
0xEF /* 'o' */, 0x01 /* to pos 36 state 11 */,
/* pos 36: state 11 */
0xEE /* 'n' */, 0x01 /* to pos 38 state 12 */,
/* pos 38: state 12 */
0xEE /* 'n' */, 0x01 /* to pos 40 state 13 */,
/* pos 40: state 13 */
0xE5 /* 'e' */, 0x01 /* to pos 42 state 14 */,
/* pos 42: state 14 */
0xE3 /* 'c' */, 0x01 /* to pos 44 state 15 */,
/* pos 44: state 15 */
0xF4 /* 't' */, 0x01 /* to pos 46 state 16 */,
/* pos 46: state 16 */
0xE9 /* 'i' */, 0x01 /* to pos 48 state 17 */,
/* pos 48: state 17 */
0xEF /* 'o' */, 0x01 /* to pos 50 state 18 */,
/* pos 50: state 18 */
0xEE /* 'n' */, 0x01 /* to pos 52 state 19 */,
/* pos 52: state 19 */
0xBA /* ':' */, 0x01 /* to pos 54 state 20 */,
/* pos 54: state 20 */
0x82, 0x00 /* terminal marker */,
/* pos 56: state 21 */
0xE5 /* 'e' */, 0x01 /* to pos 58 state 22 */,
/* pos 58: state 22 */
0xE3 /* 'c' */, 0x01 /* to pos 60 state 23 */,
/* pos 60: state 23 */
0xAD /* '-' */, 0x01 /* to pos 62 state 24 */,
/* pos 62: state 24 */
0xD7 /* 'W' */, 0x01 /* to pos 64 state 25 */,
/* pos 64: state 25 */
0xE5 /* 'e' */, 0x01 /* to pos 66 state 26 */,
/* pos 66: state 26 */
0xE2 /* 'b' */, 0x01 /* to pos 68 state 27 */,
/* pos 68: state 27 */
0xD3 /* 'S' */, 0x01 /* to pos 70 state 28 */,
/* pos 70: state 28 */
0xEF /* 'o' */, 0x01 /* to pos 72 state 29 */,
/* pos 72: state 29 */
0xE3 /* 'c' */, 0x01 /* to pos 74 state 30 */,
/* pos 74: state 30 */
0xEB /* 'k' */, 0x01 /* to pos 76 state 31 */,
/* pos 76: state 31 */
0xE5 /* 'e' */, 0x01 /* to pos 78 state 32 */,
/* pos 78: state 32 */
0xF4 /* 't' */, 0x01 /* to pos 80 state 33 */,
/* pos 80: state 33 */
0xAD /* '-' */, 0x01 /* to pos 82 state 34 */,
/* pos 82: state 34 */
0x4B /* 'K' */, 0x08 /* to pos 98 state 35 */,
0x50 /* 'P' */, 0x10 /* to pos 116 state 42 */,
0x44 /* 'D' */, 0x27 /* to pos 164 state 66 */,
0x56 /* 'V' */, 0x2F /* to pos 182 state 75 */,
0x4F /* 'O' */, 0x36 /* to pos 198 state 83 */,
0x45 /* 'E' */, 0x3C /* to pos 212 state 90 */,
0x41 /* 'A' */, 0x46 /* to pos 234 state 101 */,
0xCE /* 'N' */, 0x4C /* to pos 248 state 108 */,
/* pos 98: state 35 */
0xE5 /* 'e' */, 0x01 /* to pos 100 state 36 */,
/* pos 100: state 36 */
0xF9 /* 'y' */, 0x01 /* to pos 102 state 37 */,
/* pos 102: state 37 */
0x31 /* '1' */, 0x03 /* to pos 108 state 38 */,
0x32 /* '2' */, 0x04 /* to pos 112 state 40 */,
0xBA /* ':' */, 0x25 /* to pos 180 state 74 */,
/* pos 108: state 38 */
0xBA /* ':' */, 0x01 /* to pos 110 state 39 */,
/* pos 110: state 39 */
0x83, 0x00 /* terminal marker */,
/* pos 112: state 40 */
0xBA /* ':' */, 0x01 /* to pos 114 state 41 */,
/* pos 114: state 41 */
0x84, 0x00 /* terminal marker */,
/* pos 116: state 42 */
0xF2 /* 'r' */, 0x01 /* to pos 118 state 43 */,
/* pos 118: state 43 */
0xEF /* 'o' */, 0x01 /* to pos 120 state 44 */,
/* pos 120: state 44 */
0xF4 /* 't' */, 0x01 /* to pos 122 state 45 */,
/* pos 122: state 45 */
0xEF /* 'o' */, 0x01 /* to pos 124 state 46 */,
/* pos 124: state 46 */
0xE3 /* 'c' */, 0x01 /* to pos 126 state 47 */,
/* pos 126: state 47 */
0xEF /* 'o' */, 0x01 /* to pos 128 state 48 */,
/* pos 128: state 48 */
0xEC /* 'l' */, 0x01 /* to pos 130 state 49 */,
/* pos 130: state 49 */
0xBA /* ':' */, 0x01 /* to pos 132 state 50 */,
/* pos 132: state 50 */
0x85, 0x00 /* terminal marker */,
/* pos 134: state 51 */
0xF0 /* 'p' */, 0x01 /* to pos 136 state 52 */,
/* pos 136: state 52 */
0xE7 /* 'g' */, 0x01 /* to pos 138 state 53 */,
/* pos 138: state 53 */
0xF2 /* 'r' */, 0x01 /* to pos 140 state 54 */,
/* pos 140: state 54 */
0xE1 /* 'a' */, 0x01 /* to pos 142 state 55 */,
/* pos 142: state 55 */
0xE4 /* 'd' */, 0x01 /* to pos 144 state 56 */,
/* pos 144: state 56 */
0xE5 /* 'e' */, 0x01 /* to pos 146 state 57 */,
/* pos 146: state 57 */
0xBA /* ':' */, 0x01 /* to pos 148 state 58 */,
/* pos 148: state 58 */
0x86, 0x00 /* terminal marker */,
/* pos 150: state 59 */
0xF2 /* 'r' */, 0x01 /* to pos 152 state 60 */,
/* pos 152: state 60 */
0xE9 /* 'i' */, 0x01 /* to pos 154 state 61 */,
/* pos 154: state 61 */
0xE7 /* 'g' */, 0x01 /* to pos 156 state 62 */,
/* pos 156: state 62 */
0xE9 /* 'i' */, 0x01 /* to pos 158 state 63 */,
/* pos 158: state 63 */
0xEE /* 'n' */, 0x01 /* to pos 160 state 64 */,
/* pos 160: state 64 */
0xBA /* ':' */, 0x01 /* to pos 162 state 65 */,
/* pos 162: state 65 */
0x87, 0x00 /* terminal marker */,
/* pos 164: state 66 */
0xF2 /* 'r' */, 0x01 /* to pos 166 state 67 */,
/* pos 166: state 67 */
0xE1 /* 'a' */, 0x01 /* to pos 168 state 68 */,
/* pos 168: state 68 */
0xE6 /* 'f' */, 0x01 /* to pos 170 state 69 */,
/* pos 170: state 69 */
0xF4 /* 't' */, 0x01 /* to pos 172 state 70 */,
/* pos 172: state 70 */
0xBA /* ':' */, 0x01 /* to pos 174 state 71 */,
/* pos 174: state 71 */
0x88, 0x00 /* terminal marker */,
/* pos 176: state 72 */
0x8A /* '.' */, 0x01 /* to pos 178 state 73 */,
/* pos 178: state 73 */
0x89, 0x00 /* terminal marker */,
/* pos 180: state 74 */
0x8A, 0x00 /* terminal marker */,
/* pos 182: state 75 */
0xE5 /* 'e' */, 0x01 /* to pos 184 state 76 */,
/* pos 184: state 76 */
0xF2 /* 'r' */, 0x01 /* to pos 186 state 77 */,
/* pos 186: state 77 */
0xF3 /* 's' */, 0x01 /* to pos 188 state 78 */,
/* pos 188: state 78 */
0xE9 /* 'i' */, 0x01 /* to pos 190 state 79 */,
/* pos 190: state 79 */
0xEF /* 'o' */, 0x01 /* to pos 192 state 80 */,
/* pos 192: state 80 */
0xEE /* 'n' */, 0x01 /* to pos 194 state 81 */,
/* pos 194: state 81 */
0xBA /* ':' */, 0x01 /* to pos 196 state 82 */,
/* pos 196: state 82 */
0x8B, 0x00 /* terminal marker */,
/* pos 198: state 83 */
0xF2 /* 'r' */, 0x01 /* to pos 200 state 84 */,
/* pos 200: state 84 */
0xE9 /* 'i' */, 0x01 /* to pos 202 state 85 */,
/* pos 202: state 85 */
0xE7 /* 'g' */, 0x01 /* to pos 204 state 86 */,
/* pos 204: state 86 */
0xE9 /* 'i' */, 0x01 /* to pos 206 state 87 */,
/* pos 206: state 87 */
0xEE /* 'n' */, 0x01 /* to pos 208 state 88 */,
/* pos 208: state 88 */
0xBA /* ':' */, 0x01 /* to pos 210 state 89 */,
/* pos 210: state 89 */
0x8C, 0x00 /* terminal marker */,
/* pos 212: state 90 */
0xF8 /* 'x' */, 0x01 /* to pos 214 state 91 */,
/* pos 214: state 91 */
0xF4 /* 't' */, 0x01 /* to pos 216 state 92 */,
/* pos 216: state 92 */
0xE5 /* 'e' */, 0x01 /* to pos 218 state 93 */,
/* pos 218: state 93 */
0xEE /* 'n' */, 0x01 /* to pos 220 state 94 */,
/* pos 220: state 94 */
0xF3 /* 's' */, 0x01 /* to pos 222 state 95 */,
/* pos 222: state 95 */
0xE9 /* 'i' */, 0x01 /* to pos 224 state 96 */,
/* pos 224: state 96 */
0xEF /* 'o' */, 0x01 /* to pos 226 state 97 */,
/* pos 226: state 97 */
0xEE /* 'n' */, 0x01 /* to pos 228 state 98 */,
/* pos 228: state 98 */
0xF3 /* 's' */, 0x01 /* to pos 230 state 99 */,
/* pos 230: state 99 */
0xBA /* ':' */, 0x01 /* to pos 232 state 100 */,
/* pos 232: state 100 */
0x8D, 0x00 /* terminal marker */,
/* pos 234: state 101 */
0xE3 /* 'c' */, 0x01 /* to pos 236 state 102 */,
/* pos 236: state 102 */
0xE3 /* 'c' */, 0x01 /* to pos 238 state 103 */,
/* pos 238: state 103 */
0xE5 /* 'e' */, 0x01 /* to pos 240 state 104 */,
/* pos 240: state 104 */
0xF0 /* 'p' */, 0x01 /* to pos 242 state 105 */,
/* pos 242: state 105 */
0xF4 /* 't' */, 0x01 /* to pos 244 state 106 */,
/* pos 244: state 106 */
0xBA /* ':' */, 0x01 /* to pos 246 state 107 */,
/* pos 246: state 107 */
0x8E, 0x00 /* terminal marker */,
/* pos 248: state 108 */
0xEF /* 'o' */, 0x01 /* to pos 250 state 109 */,
/* pos 250: state 109 */
0xEE /* 'n' */, 0x01 /* to pos 252 state 110 */,
/* pos 252: state 110 */
0xE3 /* 'c' */, 0x01 /* to pos 254 state 111 */,
/* pos 254: state 111 */
0xE5 /* 'e' */, 0x01 /* to pos 256 state 112 */,
/* pos 256: state 112 */
0xBA /* ':' */, 0x01 /* to pos 258 state 113 */,
/* pos 258: state 113 */
0x8F, 0x00 /* terminal marker */,
/* pos 260: state 114 */
0xD4 /* 'T' */, 0x01 /* to pos 262 state 115 */,
/* pos 262: state 115 */
0xD0 /* 'P' */, 0x01 /* to pos 264 state 116 */,
/* pos 264: state 116 */
0xAF /* '/' */, 0x01 /* to pos 266 state 117 */,
/* pos 266: state 117 */
0xB1 /* '1' */, 0x01 /* to pos 268 state 118 */,
/* pos 268: state 118 */
0xAE /* '.' */, 0x01 /* to pos 270 state 119 */,
/* pos 270: state 119 */
0xB1 /* '1' */, 0x01 /* to pos 272 state 120 */,
/* pos 272: state 120 */
0xA0 /* ' ' */, 0x01 /* to pos 274 state 121 */,
/* pos 274: state 121 */
0x90, 0x00 /* terminal marker */,
/* total size 276 bytes */
};
int lextable_decode(int pos, char c)
{
while (pos >= 0) {
if (lextable[pos + 1] == 0) // terminal marker
if (lextable[pos + 1] == 0) /* terminal marker */
return pos;
if ((lextable[pos] & 0x7f) == c)
@ -309,12 +309,12 @@ int lextable_decode(int pos, char c)
int lws_allocate_header_table(struct libwebsocket *wsi)
{
wsi->u.hdr.ah = malloc(sizeof *wsi->u.hdr.ah);
wsi->u.hdr.ah = malloc(sizeof(*wsi->u.hdr.ah));
if (wsi->u.hdr.ah == NULL) {
lwsl_err("Out of memory\n");
return -1;
}
memset(wsi->u.hdr.ah->frag_index, 0, sizeof wsi->u.hdr.ah->frag_index);
memset(wsi->u.hdr.ah->frag_index, 0, sizeof(wsi->u.hdr.ah->frag_index));
wsi->u.hdr.ah->next_frag_index = 0;
wsi->u.hdr.ah->pos = 0;
@ -338,7 +338,8 @@ int lws_hdr_total_length(struct libwebsocket *wsi, enum lws_token_indexes h)
return len;
}
int lws_hdr_copy(struct libwebsocket *wsi, char *dest, int len, enum lws_token_indexes h)
int lws_hdr_copy(struct libwebsocket *wsi, char *dest, int len,
enum lws_token_indexes h)
{
int toklen = lws_hdr_total_length(wsi, h);
int n;
@ -351,7 +352,8 @@ int lws_hdr_copy(struct libwebsocket *wsi, char *dest, int len, enum lws_token_i
return 0;
do {
strcpy(dest, &wsi->u.hdr.ah->data[wsi->u.hdr.ah->frags[n].offset]);
strcpy(dest,
&wsi->u.hdr.ah->data[wsi->u.hdr.ah->frags[n].offset]);
dest += wsi->u.hdr.ah->frags[n].len;
n = wsi->u.hdr.ah->frags[n].next_frag_index;
} while (n);
@ -359,7 +361,7 @@ int lws_hdr_copy(struct libwebsocket *wsi, char *dest, int len, enum lws_token_i
return toklen;
}
char * lws_hdr_simple_ptr(struct libwebsocket *wsi, enum lws_token_indexes h)
char *lws_hdr_simple_ptr(struct libwebsocket *wsi, enum lws_token_indexes h)
{
int n;
@ -370,28 +372,33 @@ char * lws_hdr_simple_ptr(struct libwebsocket *wsi, enum lws_token_indexes h)
return &wsi->u.hdr.ah->data[wsi->u.hdr.ah->frags[n].offset];
}
int lws_hdr_simple_create(struct libwebsocket *wsi, enum lws_token_indexes h, const char *s)
int lws_hdr_simple_create(struct libwebsocket *wsi,
enum lws_token_indexes h, const char *s)
{
wsi->u.hdr.ah->next_frag_index++;
if (wsi->u.hdr.ah->next_frag_index == sizeof(wsi->u.hdr.ah->frags) / sizeof(wsi->u.hdr.ah->frags[0])) {
lwsl_warn("More header fragments than we can deal with, dropping\n");
if (wsi->u.hdr.ah->next_frag_index ==
sizeof(wsi->u.hdr.ah->frags) / sizeof(wsi->u.hdr.ah->frags[0])) {
lwsl_warn("More hdr frags than we can deal with, dropping\n");
return -1;
}
wsi->u.hdr.ah->frag_index[h] = wsi->u.hdr.ah->next_frag_index;
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].offset = wsi->u.hdr.ah->pos;
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].offset =
wsi->u.hdr.ah->pos;
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].len = 0;
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].next_frag_index = 0;
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].next_frag_index =
0;
do {
if (wsi->u.hdr.ah->pos == sizeof wsi->u.hdr.ah->data) {
if (wsi->u.hdr.ah->pos == sizeof(wsi->u.hdr.ah->data)) {
lwsl_err("Ran out of header data space\n");
return -1;
}
wsi->u.hdr.ah->data[wsi->u.hdr.ah->pos++] = *s;
if (*s)
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].len++;
wsi->u.hdr.ah->frags[
wsi->u.hdr.ah->next_frag_index].len++;
} while (*s++);
return 0;
@ -420,11 +427,12 @@ int libwebsocket_parse(struct libwebsocket *wsi, unsigned char c)
case WSI_TOKEN_EXTENSIONS:
case WSI_TOKEN_HTTP:
lwsl_parser("WSI_TOKEN_(%d) '%c'\n", wsi->u.hdr.parser_state, c);
lwsl_parser("WSI_TOK_(%d) '%c'\n", wsi->u.hdr.parser_state, c);
/* collect into malloc'd buffers */
/* optional initial space swallow */
if (!wsi->u.hdr.ah->frags[wsi->u.hdr.ah->frag_index[wsi->u.hdr.parser_state]].len && c == ' ')
if (!wsi->u.hdr.ah->frags[wsi->u.hdr.ah->frag_index[
wsi->u.hdr.parser_state]].len && c == ' ')
break;
/* special case space terminator for get-uri */
@ -434,19 +442,21 @@ int libwebsocket_parse(struct libwebsocket *wsi, unsigned char c)
}
/* bail at EOL */
if (wsi->u.hdr.parser_state != WSI_TOKEN_CHALLENGE && c == '\x0d') {
if (wsi->u.hdr.parser_state != WSI_TOKEN_CHALLENGE &&
c == '\x0d') {
c = '\0';
wsi->u.hdr.parser_state = WSI_TOKEN_SKIPPING_SAW_CR;
lwsl_parser("*\n");
}
if (wsi->u.hdr.ah->pos == sizeof wsi->u.hdr.ah->data) {
if (wsi->u.hdr.ah->pos == sizeof(wsi->u.hdr.ah->data)) {
lwsl_warn("excessive header content\n");
return -1;
}
wsi->u.hdr.ah->data[wsi->u.hdr.ah->pos++] = c;
if (c)
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].len++;
wsi->u.hdr.ah->frags[
wsi->u.hdr.ah->next_frag_index].len++;
/* per-protocol end of headers management */
@ -458,7 +468,8 @@ int libwebsocket_parse(struct libwebsocket *wsi, unsigned char c)
case WSI_TOKEN_NAME_PART:
lwsl_parser("WSI_TOKEN_NAME_PART '%c'\n", c);
if (wsi->u.hdr.name_buffer_pos == sizeof(wsi->u.hdr.name_buffer) - 1) {
if (wsi->u.hdr.name_buffer_pos ==
sizeof(wsi->u.hdr.name_buffer) - 1) {
/* name bigger than we can handle, skip until next */
wsi->u.hdr.parser_state = WSI_TOKEN_SKIPPING;
break;
@ -466,18 +477,23 @@ int libwebsocket_parse(struct libwebsocket *wsi, unsigned char c)
wsi->u.hdr.name_buffer[wsi->u.hdr.name_buffer_pos++] = c;
wsi->u.hdr.name_buffer[wsi->u.hdr.name_buffer_pos] = '\0';
wsi->u.hdr.lextable_pos = lextable_decode(wsi->u.hdr.lextable_pos, c);
wsi->u.hdr.lextable_pos =
lextable_decode(wsi->u.hdr.lextable_pos, c);
if (wsi->u.hdr.lextable_pos < 0) {
/* this is not a header we know about */
if (wsi->u.hdr.ah->frag_index[WSI_TOKEN_GET_URI]) {
/* altready had the method, no idea what this crap is, ignore */
/*
* altready had the method, no idea what
* this crap is, ignore
*/
wsi->u.hdr.parser_state = WSI_TOKEN_SKIPPING;
break;
}
/* hm it's an unknown http method in fact */
if (c == ' ') {
lwsl_info("Unknown method %s\n", wsi->u.hdr.name_buffer);
lwsl_info("Unknown method %s\n",
wsi->u.hdr.name_buffer);
/* treat it as GET */
wsi->u.hdr.parser_state = WSI_TOKEN_GET_URI;
goto start_fragment;
@ -509,14 +525,18 @@ int libwebsocket_parse(struct libwebsocket *wsi, unsigned char c)
start_fragment:
wsi->u.hdr.ah->next_frag_index++;
if (wsi->u.hdr.ah->next_frag_index == sizeof(wsi->u.hdr.ah->frags) / sizeof(wsi->u.hdr.ah->frags[0])) {
lwsl_warn("More header fragments than we can deal with, dropping\n");
if (wsi->u.hdr.ah->next_frag_index ==
sizeof(wsi->u.hdr.ah->frags) /
sizeof(wsi->u.hdr.ah->frags[0])) {
lwsl_warn("More hdr frags than we can deal with\n");
return -1;
}
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].offset = wsi->u.hdr.ah->pos;
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].offset =
wsi->u.hdr.ah->pos;
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].len = 0;
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].next_frag_index = 0;
wsi->u.hdr.ah->frags[
wsi->u.hdr.ah->next_frag_index].next_frag_index = 0;
n = wsi->u.hdr.ah->frag_index[wsi->u.hdr.parser_state];
if (!n) { /* first fragment */
@ -528,13 +548,14 @@ start_fragment:
wsi->u.hdr.ah->frags[n].next_frag_index =
wsi->u.hdr.ah->next_frag_index;
if (wsi->u.hdr.ah->pos == sizeof wsi->u.hdr.ah->data) {
if (wsi->u.hdr.ah->pos == sizeof(wsi->u.hdr.ah->data)) {
lwsl_warn("excessive header content\n");
return -1;
}
wsi->u.hdr.ah->data[wsi->u.hdr.ah->pos++] = ' ';
wsi->u.hdr.ah->frags[wsi->u.hdr.ah->next_frag_index].len++;
wsi->u.hdr.ah->frags[
wsi->u.hdr.ah->next_frag_index].len++;
}
break;
@ -570,14 +591,11 @@ start_fragment:
set_parsing_complete:
if (lws_hdr_total_length(wsi, WSI_TOKEN_UPGRADE)) {
if (!lws_hdr_total_length(wsi, WSI_TOKEN_VERSION)) {
// lwsl_info("Missing Version Header\n");
// return 1;
} else
if (lws_hdr_total_length(wsi, WSI_TOKEN_VERSION))
wsi->ietf_spec_revision =
atoi(lws_hdr_simple_ptr(wsi, WSI_TOKEN_VERSION));
lwsl_parser("v%02d headers completed\n", wsi->ietf_spec_revision);
lwsl_parser("v%02d hdrs completed\n", wsi->ietf_spec_revision);
}
wsi->u.hdr.parser_state = WSI_PARSING_COMPLETE;
@ -627,8 +645,8 @@ libwebsocket_rx_sm(struct libwebsocket *wsi, unsigned char c)
goto handle_first;
default:
lwsl_warn("libwebsocket_rx_sm doesn't know "
"about spec version %d\n", wsi->ietf_spec_revision);
lwsl_warn("lws_rx_sm: unknown spec version %d\n",
wsi->ietf_spec_revision);
break;
}
break;
@ -715,7 +733,8 @@ handle_first:
switch (wsi->u.ws.opcode) {
case LWS_WS_OPCODE_07__TEXT_FRAME:
case LWS_WS_OPCODE_07__BINARY_FRAME:
wsi->u.ws.frame_is_binary = wsi->u.ws.opcode == LWS_WS_OPCODE_07__BINARY_FRAME;
wsi->u.ws.frame_is_binary =
wsi->u.ws.opcode == LWS_WS_OPCODE_07__BINARY_FRAME;
break;
}
wsi->lws_rx_parse_state = LWS_RXPS_04_FRAME_HDR_LEN;
@ -869,13 +888,15 @@ handle_first:
else
wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING +
(wsi->u.ws.rx_user_buffer_head++)] =
c ^ wsi->u.ws.frame_masking_nonce_04[(wsi->u.ws.frame_mask_index++) & 3];
c ^ wsi->u.ws.frame_masking_nonce_04[
(wsi->u.ws.frame_mask_index++) & 3];
if (--wsi->u.ws.rx_packet_length == 0) {
wsi->lws_rx_parse_state = LWS_RXPS_NEW;
goto spill;
}
if (wsi->u.ws.rx_user_buffer_head != wsi->protocol->rx_buffer_size)
if (wsi->u.ws.rx_user_buffer_head !=
wsi->protocol->rx_buffer_size)
break;
spill:
/*
@ -899,8 +920,10 @@ spill:
lwsl_parser("server sees client close packet\n");
/* parrot the close packet payload back */
n = libwebsocket_write(wsi, (unsigned char *)
&wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
wsi->u.ws.rx_user_buffer_head, LWS_WRITE_CLOSE);
&wsi->u.ws.rx_user_buffer[
LWS_SEND_BUFFER_PRE_PADDING],
wsi->u.ws.rx_user_buffer_head,
LWS_WRITE_CLOSE);
if (n)
lwsl_info("write of close ack failed %d\n", n);
wsi->state = WSI_STATE_RETURNED_CLOSE_ALREADY;
@ -908,11 +931,15 @@ spill:
return -1;
case LWS_WS_OPCODE_07__PING:
lwsl_info("received %d byte ping, sending pong\n", wsi->u.ws.rx_user_buffer_head);
lwsl_hexdump(&wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING], wsi->u.ws.rx_user_buffer_head);
lwsl_info("received %d byte ping, sending pong\n",
wsi->u.ws.rx_user_buffer_head);
lwsl_hexdump(&wsi->u.ws.rx_user_buffer[
LWS_SEND_BUFFER_PRE_PADDING],
wsi->u.ws.rx_user_buffer_head);
/* parrot the ping packet payload back as a pong */
n = libwebsocket_write(wsi, (unsigned char *)
&wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING], wsi->u.ws.rx_user_buffer_head, LWS_WRITE_PONG);
&wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
wsi->u.ws.rx_user_buffer_head, LWS_WRITE_PONG);
/* ... then just drop it */
wsi->u.ws.rx_user_buffer_head = 0;
return 0;
@ -929,7 +956,8 @@ spill:
default:
#ifndef LWS_NO_EXTENSIONS
lwsl_parser("passing opcode %x up to exts\n", wsi->u.ws.opcode);
lwsl_parser("passing opc %x up to exts\n",
wsi->u.ws.opcode);
/*
* It's something special we can't understand here.
@ -955,8 +983,8 @@ spill:
if (!handled)
#endif
lwsl_ext("Unhandled extended opcode "
"0x%x - ignoring frame\n", wsi->u.ws.opcode);
lwsl_ext("ext opc opcode 0x%x unknown\n",
wsi->u.ws.opcode);
wsi->u.ws.rx_user_buffer_head = 0;
return 0;
@ -981,8 +1009,8 @@ spill:
&eff_buf, 0);
if (m < 0) {
lwsl_ext(
"Extension '%s' failed to handle payload!\n",
wsi->active_extensions[n]->name);
"Extension '%s' failed to handle payload!\n",
wsi->active_extensions[n]->name);
return -1;
}
}
@ -991,12 +1019,13 @@ spill:
eff_buf.token[eff_buf.token_len] = '\0';
if (wsi->protocol->callback)
ret = user_callback_handle_rxflow(wsi->protocol->callback,
wsi->protocol->owning_server,
wsi, LWS_CALLBACK_RECEIVE,
wsi->user_space,
eff_buf.token,
eff_buf.token_len);
ret = user_callback_handle_rxflow(
wsi->protocol->callback,
wsi->protocol->owning_server,
wsi, LWS_CALLBACK_RECEIVE,
wsi->user_space,
eff_buf.token,
eff_buf.token_len);
else
lwsl_err("No callback on payload spill!\n");
}
@ -1009,8 +1038,7 @@ spill:
illegal_ctl_length:
lwsl_warn("Control frame asking for "
"extended length is illegal\n");
lwsl_warn("Control frame with xtended length is illegal\n");
/* kill the connection */
return -1;
}
@ -1030,13 +1058,14 @@ int libwebsocket_interpret_incoming_packet(struct libwebsocket *wsi,
#endif
if (buf && wsi->u.ws.rxflow_buffer)
lwsl_err("!!!! libwebsocket_interpret_incoming_packet: was pending rxflow, data loss\n");
lwsl_err("!!!! pending rxflow data loss\n");
/* let the rx protocol state machine have as much as it needs */
n = 0;
if (!buf) {
lwsl_info("dumping stored rxflow buffer len %d pos=%d\n", wsi->u.ws.rxflow_len, wsi->u.ws.rxflow_pos);
lwsl_info("dumping stored rxflow buffer len %d pos=%d\n",
wsi->u.ws.rxflow_len, wsi->u.ws.rxflow_pos);
buf = wsi->u.ws.rxflow_buffer;
n = wsi->u.ws.rxflow_pos;
len = wsi->u.ws.rxflow_len;
@ -1045,17 +1074,22 @@ int libwebsocket_interpret_incoming_packet(struct libwebsocket *wsi,
}
while (n < len) {
if (!(context->fds[wsi->position_in_fds_table].events & POLLIN)) {
if (!(context->fds[wsi->position_in_fds_table].events &
POLLIN)) {
/* his RX is flowcontrolled */
if (!wsi->u.ws.rxflow_buffer) { /* a new rxflow in effect, buffer it and warn caller */
lwsl_info("new rxflow input buffer len %d\n", len - n);
wsi->u.ws.rxflow_buffer = (unsigned char *)malloc(len - n);
if (!wsi->u.ws.rxflow_buffer) {
/* a new rxflow, buffer it and warn caller */
lwsl_info("new rxflow input buffer len %d\n",
len - n);
wsi->u.ws.rxflow_buffer =
(unsigned char *)malloc(len - n);
wsi->u.ws.rxflow_len = len - n;
wsi->u.ws.rxflow_pos = 0;
memcpy(wsi->u.ws.rxflow_buffer, buf + n, len - n);
memcpy(wsi->u.ws.rxflow_buffer,
buf + n, len - n);
} else {
lwsl_info("re-using rxflow input buffer\n");
/* rxflow while we were spilling previous rxflow buffer */
/* rxflow while we were spilling prev rxflow */
wsi->u.ws.rxflow_pos = n;
}
return 1;

52
lib/private-libwebsockets.h
View file

@ -19,7 +19,7 @@
* MA 02110-1301 USA
*/
// System introspection configs.
/* System introspection configs */
#ifdef CMAKE_BUILD
#include "lws_config.h"
#else
@ -43,9 +43,9 @@
#include <fcntl.h>
#include <signal.h>
#include <limits.h>
#ifdef __MINGW64__
#ifdef __MINGW64__
#else
#ifdef __MINGW32__
#ifdef __MINGW32__
#elif _MSC_VER > 1000 || defined(_WIN32)
#else
#include <netdb.h>
@ -59,9 +59,9 @@
#define LWS_NO_DAEMONIZE
#define compatible_close(fd) closesocket(fd);
#ifdef __MINGW64__
#else
#ifdef __MINGW32__
#ifdef __MINGW64__
#else
#ifdef __MINGW32__
#else
#include <time.h >
#endif
@ -278,7 +278,7 @@ struct libwebsocket_context {
#ifndef LWS_NO_EXTENSIONS
struct libwebsocket_extension *extensions;
#endif
void *user_space;
void *user_space;
};
@ -396,16 +396,21 @@ struct libwebsocket {
SSL *ssl;
BIO *client_bio;
unsigned int use_ssl:2;
#endif
#endif
};
#ifndef LWS_LATENCY
static inline void lws_latency(struct libwebsocket_context *context, struct libwebsocket *wsi, const char *action, int ret, int completion) { while (0); }
static inline void lws_latency_pre(struct libwebsocket_context *context, struct libwebsocket *wsi) { while (0); }
static inline void lws_latency(struct libwebsocket_context *context,
struct libwebsocket *wsi, const char *action,
int ret, int completion) { while (0); }
static inline void lws_latency_pre(struct libwebsocket_context *context,
struct libwebsocket *wsi) { while (0); }
#else
#define lws_latency_pre(_context, _wsi) lws_latency(_context, _wsi, NULL, 0, 0)
extern void
lws_latency(struct libwebsocket_context *context, struct libwebsocket *wsi, const char *action, int ret, int completion);
lws_latency(struct libwebsocket_context *context,
struct libwebsocket *wsi, const char *action,
int ret, int completion);
#endif
extern int
@ -425,7 +430,8 @@ extern struct libwebsocket *
wsi_from_fd(struct libwebsocket_context *context, int fd);
extern int
insert_wsi_socket_into_fds(struct libwebsocket_context *context, struct libwebsocket *wsi);
insert_wsi_socket_into_fds(struct libwebsocket_context *context,
struct libwebsocket *wsi);
extern void
libwebsocket_set_timeout(struct libwebsocket *wsi,
@ -480,7 +486,8 @@ extern int
_libwebsocket_rx_flow_control(struct libwebsocket *wsi);
extern int
user_callback_handle_rxflow(callback_function, struct libwebsocket_context * context,
user_callback_handle_rxflow(callback_function,
struct libwebsocket_context *context,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason, void *user,
void *in, size_t len);
@ -495,11 +502,28 @@ extern char *
lws_hdr_simple_ptr(struct libwebsocket *wsi, enum lws_token_indexes h);
extern int
lws_hdr_simple_create(struct libwebsocket *wsi, enum lws_token_indexes h, const char *s);
lws_hdr_simple_create(struct libwebsocket *wsi,
enum lws_token_indexes h, const char *s);
#ifndef LWS_NO_SERVER
extern int handshake_0405(struct libwebsocket_context *context,
struct libwebsocket *wsi);
#endif
#ifndef LWS_NO_DAEMONIZE
extern int get_daemonize_pid();
#endif
extern int interface_to_sa(const char *ifname,
struct sockaddr_in *addr, size_t addrlen);
#ifndef LWS_OPENSSL_SUPPORT
unsigned char *
SHA1(const unsigned char *d, size_t n, unsigned char *md);
#else
extern int openssl_websocket_private_data_index;
#endif

25
lib/server-handshake.c
View file

@ -50,14 +50,14 @@ handshake_0405(struct libwebsocket_context *context, struct libwebsocket *wsi)
goto bail;
}
if (lws_hdr_total_length(wsi, WSI_TOKEN_KEY) >= MAX_WEBSOCKET_04_KEY_LEN) {
lwsl_warn("Client sent handshake key longer "
"than max supported %d\n", MAX_WEBSOCKET_04_KEY_LEN);
if (lws_hdr_total_length(wsi, WSI_TOKEN_KEY) >=
MAX_WEBSOCKET_04_KEY_LEN) {
lwsl_warn("Client key too long %d\n", MAX_WEBSOCKET_04_KEY_LEN);
goto bail;
}
n = snprintf((char *)context->service_buffer,
sizeof context->service_buffer,
sizeof(context->service_buffer),
"%s258EAFA5-E914-47DA-95CA-C5AB0DC85B11",
lws_hdr_simple_ptr(wsi, WSI_TOKEN_KEY));
@ -65,7 +65,7 @@ handshake_0405(struct libwebsocket_context *context, struct libwebsocket *wsi)
accept_len = lws_b64_encode_string((char *)hash, 20,
(char *)context->service_buffer,
sizeof context->service_buffer);
sizeof(context->service_buffer));
if (accept_len < 0) {
lwsl_warn("Base64 encoded hash too long\n");
goto bail;
@ -110,7 +110,9 @@ handshake_0405(struct libwebsocket_context *context, struct libwebsocket *wsi)
* and go through them
*/
if (lws_hdr_copy(wsi, (char *)context->service_buffer, sizeof context->service_buffer, WSI_TOKEN_EXTENSIONS) < 0)
if (lws_hdr_copy(wsi, (char *)context->service_buffer,
sizeof(context->service_buffer),
WSI_TOKEN_EXTENSIONS) < 0)
goto bail;
c = (char *)context->service_buffer;
@ -187,7 +189,7 @@ handshake_0405(struct libwebsocket_context *context, struct libwebsocket *wsi)
wsi->count_active_extensions] =
malloc(ext->per_session_data_size);
if (wsi->active_extensions_user[
wsi->count_active_extensions] == NULL) {
wsi->count_active_extensions] == NULL) {
lwsl_err("Out of mem\n");
free(response);
goto bail;
@ -208,7 +210,7 @@ handshake_0405(struct libwebsocket_context *context, struct libwebsocket *wsi)
wsi->count_active_extensions], NULL, 0);
wsi->count_active_extensions++;
lwsl_parser("wsi->count_active_extensions <- %d\n",
lwsl_parser("count_active_extensions <- %d\n",
wsi->count_active_extensions);
ext++;
@ -225,12 +227,13 @@ handshake_0405(struct libwebsocket_context *context, struct libwebsocket *wsi)
#ifndef LWS_NO_EXTENSIONS
if (!lws_any_extension_handled(context, wsi,
LWS_EXT_CALLBACK_HANDSHAKE_REPLY_TX,
response, p - response))
#endif
response, p - response)) {
#else
{
#endif
/* okay send the handshake response accepting the connection */
lwsl_parser("issuing response packet %d len\n", (int)(p - response));
lwsl_parser("issuing resp pkt %d len\n", (int)(p - response));
#ifdef DEBUG
fwrite(response, 1, p - response, stderr);
#endif

60
lib/server.c
View file

@ -37,7 +37,6 @@
#endif
#ifdef LWS_OPENSSL_SUPPORT
extern int openssl_websocket_private_data_index;
static void
libwebsockets_decode_ssl_error(void)
@ -150,26 +149,32 @@ int lws_server_socket_service(struct libwebsocket_context *context,
#ifdef LWS_OPENSSL_SUPPORT
if (wsi->ssl)
len = SSL_read(wsi->ssl, context->service_buffer, sizeof context->service_buffer);
len = SSL_read(wsi->ssl,
context->service_buffer,
sizeof(context->service_buffer));
else
#endif
len = recv(pollfd->fd, context->service_buffer, sizeof context->service_buffer, 0);
len = recv(pollfd->fd,
context->service_buffer,
sizeof(context->service_buffer), 0);
if (len < 0) {
lwsl_debug("Socket read returned %d\n", len);
if (errno != EINTR && errno != EAGAIN)
libwebsocket_close_and_free_session(context,
wsi, LWS_CLOSE_STATUS_NOSTATUS);
libwebsocket_close_and_free_session(
context, wsi,
LWS_CLOSE_STATUS_NOSTATUS);
return 0;
}
if (!len) {
lwsl_info("lws_server_socket_service: closing on zero length read\n");
libwebsocket_close_and_free_session(context, wsi,
LWS_CLOSE_STATUS_NOSTATUS);
lwsl_info("lws_server_sktt_srv: read 0 len\n");
libwebsocket_close_and_free_session(
context, wsi, LWS_CLOSE_STATUS_NOSTATUS);
return 0;
}
n = libwebsocket_read(context, wsi, context->service_buffer, len);
n = libwebsocket_read(context, wsi,
context->service_buffer, len);
if (n < 0)
/* we closed wsi */
return 0;
@ -182,15 +187,14 @@ int lws_server_socket_service(struct libwebsocket_context *context,
/* one shot */
pollfd->events &= ~POLLOUT;
if (wsi->state != WSI_STATE_HTTP_ISSUING_FILE)
break;
if (libwebsockets_serve_http_file_fragment(context, wsi)) { /* nonzero for completion or error */
lwsl_info("lws_server_socket_service: libwebsockets_serve_http_file_fragment says to close\n");
/* nonzero for completion or error */
if (libwebsockets_serve_http_file_fragment(context, wsi))
libwebsocket_close_and_free_session(context, wsi,
LWS_CLOSE_STATUS_NOSTATUS);
}
break;
case LWS_CONNMODE_SERVER_LISTENER:
@ -206,7 +210,9 @@ int lws_server_socket_service(struct libwebsocket_context *context,
lws_latency_pre(context, wsi);
accept_fd = accept(pollfd->fd, (struct sockaddr *)&cli_addr,
&clilen);
lws_latency(context, wsi, "unencrypted accept LWS_CONNMODE_SERVER_LISTENER", accept_fd, accept_fd >= 0);
lws_latency(context, wsi,
"unencrypted accept LWS_CONNMODE_SERVER_LISTENER",
accept_fd, accept_fd >= 0);
if (accept_fd < 0) {
if (errno == EAGAIN || errno == EWOULDBLOCK) {
lwsl_debug("accept asks to try again\n");
@ -284,7 +290,7 @@ int lws_server_socket_service(struct libwebsocket_context *context,
lwsl_notice("NULL rbio\n");
#endif
/*
/*
* we are not accepted yet, but we need to enter ourselves
* as a live connection. That way we can retry when more
* pieces come if we're not sorted yet
@ -297,7 +303,7 @@ int lws_server_socket_service(struct libwebsocket_context *context,
libwebsocket_set_timeout(wsi, PENDING_TIMEOUT_SSL_ACCEPT,
AWAITING_TIMEOUT);
lwsl_info("inserted SSL acceipt into fds, trying actual SSL_accept\n");
lwsl_info("inserted SSL accept into fds, trying SSL_accept\n");
/* fallthru */
@ -312,14 +318,17 @@ int lws_server_socket_service(struct libwebsocket_context *context,
lws_latency_pre(context, wsi);
n = SSL_accept(wsi->ssl);
lws_latency(context, wsi, "SSL_accept LWS_CONNMODE_SSL_ACK_PENDING\n", n, n == 1);
lws_latency(context, wsi,
"SSL_accept LWS_CONNMODE_SSL_ACK_PENDING\n", n, n == 1);
if (n != 1) {
m = SSL_get_error(wsi->ssl, n);
lwsl_debug("SSL_accept failed %d / %s\n", m, ERR_error_string(m, NULL));
lwsl_debug("SSL_accept failed %d / %s\n",
m, ERR_error_string(m, NULL));
if (m == SSL_ERROR_WANT_READ) {
context->fds[wsi->position_in_fds_table].events |= POLLIN;
context->fds[
wsi->position_in_fds_table].events |= POLLIN;
/* external POLL support via protocol 0 */
context->protocols[0].callback(context, wsi,
@ -329,7 +338,8 @@ int lws_server_socket_service(struct libwebsocket_context *context,
break;
}
if (m == SSL_ERROR_WANT_WRITE) {
context->fds[wsi->position_in_fds_table].events |= POLLOUT;
context->fds[
wsi->position_in_fds_table].events |= POLLOUT;
/* external POLL support via protocol 0 */
context->protocols[0].callback(context, wsi,
@ -340,7 +350,8 @@ int lws_server_socket_service(struct libwebsocket_context *context,
lwsl_debug("SSL_accept failed skt %u: %s\n",
pollfd->fd,
ERR_error_string(m, NULL));
libwebsocket_close_and_free_session(context, wsi, LWS_CLOSE_STATUS_NOSTATUS);
libwebsocket_close_and_free_session(context, wsi,
LWS_CLOSE_STATUS_NOSTATUS);
break;
}
@ -350,10 +361,9 @@ int lws_server_socket_service(struct libwebsocket_context *context,
wsi->mode = LWS_CONNMODE_HTTP_SERVING;
lwsl_debug("accepted new SSL conn "
"port %u on fd=%d SSL ver %s\n",
ntohs(cli_addr.sin_port),
SSL_get_version(wsi->ssl));
lwsl_debug(
"accepted new SSL conn port %u on fd=%d SSL ver %s\n",
ntohs(cli_addr.sin_port), SSL_get_version(wsi->ssl));
break;
#endif

7
libwebsockets-api-doc.html
View file

@ -166,7 +166,8 @@ happened.
<h3>Description</h3>
<blockquote>
This function takes a pollfd that has POLLIN or POLLOUT activity and
services it according to the state of the associated struct libwebsocket.
services it according to the state of the associated
struct libwebsocket.
<p>
The one call deals with all "service" that might happen on a socket
including listen accepts, http files as well as websocket protocol.
@ -188,7 +189,7 @@ context. After calling this, any further use of the context is
undefined.
</blockquote>
<hr>
<h2>libwebsocket_context_user - get the user data associated with the whole context</h2>
<h2>libwebsocket_context_user - get the user data associated with the context</h2>
<i>LWS_EXTERN void *</i>
<b>libwebsocket_context_user</b>
(<i>struct libwebsocket_context *</i> <b>context</b>)
@ -398,7 +399,7 @@ this is how you can get a pointer to the active protocol if needed.
<i>void</i>
<b>lws_set_log_level</b>
(<i>int</i> <b>level</b>,
<i>void (*</i><b>log_emit_function</b>) <i>(int level, const char *line)</i>)
<i>void (*</i><b>log_emit_function</b>) <i>(int level, const char *line)</i>)
<h3>Arguments</h3>
<dl>
<dt><b>level</b>