Apple / iOS build compatability patch

This allows build on iOS platform, thanks Darin!

Signed-off-by: Darin Willits <darin@willits.ca>

lib/client-handshake.c

@@ -79,6 +79,8 @@ libwebsocket_client_connect(struct libwebsocket_context *this,
 		return NULL;
 	}
 
+	memset(wsi, 0, sizeof *wsi);
+
 	/* -1 means just use latest supported */
 
 	if (ietf_version_or_minus_one == -1)

lib/libwebsockets.c

@@ -965,9 +965,14 @@ libwebsocket_create_context(int port,
 	hostname[(sizeof hostname) - 1] = '\0';
 	gethostname(hostname, (sizeof hostname) - 1);
 	he = gethostbyname(hostname);
-	strncpy(this->canonical_hostname, he->h_name,
+	if (he) {
+		strncpy(this->canonical_hostname, he->h_name,
+					   sizeof this->canonical_hostname - 1);
+		this->canonical_hostname[sizeof this->canonical_hostname - 1] =
+									   '\0';
+	} else
+		strncpy(this->canonical_hostname, hostname,
 					   sizeof this->canonical_hostname - 1);
-	this->canonical_hostname[sizeof this->canonical_hostname - 1] = '\0';
 
 	/* split the proxy ads:port if given */
 

lib/libwebsockets.h

@@ -236,7 +236,7 @@ struct libwebsocket_context;
  * 		pollfd struct for this socket descriptor.  If you are using the
  *		internal polling loop, you can just ignore it.
  */
-extern int callback(struct libwebsocket_context * this,
+extern int callback(struct libwebsocket_context * context,
 			struct libwebsocket *wsi,
 			 enum libwebsocket_callback_reasons reason, void *user,
 							  void *in, size_t len);
@@ -271,7 +271,7 @@ extern int callback(struct libwebsocket_context * this,
 
 struct libwebsocket_protocols {
 	const char *name;
-	int (*callback)(struct libwebsocket_context * this,
+	int (*callback)(struct libwebsocket_context * context,
 			struct libwebsocket *wsi,
 			enum libwebsocket_callback_reasons reason, void *user,
 							  void *in, size_t len);
@@ -296,16 +296,16 @@ libwebsocket_create_context(int port,
 		  unsigned int options);
 
 extern void
-libwebsocket_context_destroy(struct libwebsocket_context *this);
+libwebsocket_context_destroy(struct libwebsocket_context *context);
 
 extern int
-libwebsockets_fork_service_loop(struct libwebsocket_context *this);
+libwebsockets_fork_service_loop(struct libwebsocket_context *context);
 
 extern int
-libwebsocket_service(struct libwebsocket_context *this, int timeout_ms);
+libwebsocket_service(struct libwebsocket_context *context, int timeout_ms);
 
 extern int
-libwebsocket_service_fd(struct libwebsocket_context *this,
+libwebsocket_service_fd(struct libwebsocket_context *context,
 							 struct pollfd *pollfd);
 
 /*
@@ -355,7 +355,7 @@ extern const struct libwebsocket_protocols *
 libwebsockets_get_protocol(struct libwebsocket *wsi);
 
 extern int
-libwebsocket_callback_on_writable(struct libwebsocket_context *this,
+libwebsocket_callback_on_writable(struct libwebsocket_context *context,
 						      struct libwebsocket *wsi);
 
 extern int
@@ -383,7 +383,7 @@ libwebsocket_client_connect(struct libwebsocket_context *clients,
 			      int ietf_version_or_minus_one);
 
 extern const char *
-libwebsocket_canonical_hostname(struct libwebsocket_context *this);
+libwebsocket_canonical_hostname(struct libwebsocket_context *context);
 
 
 extern void
@@ -391,10 +391,10 @@ libwebsockets_get_peer_addresses(int fd, char *name, int name_len,
 					char *rip, int rip_len);
 
 extern void
-libwebsockets_hangup_on_client(struct libwebsocket_context *this, int fd);
+libwebsockets_hangup_on_client(struct libwebsocket_context *context, int fd);
 
 extern void
-libwebsocket_close_and_free_session(struct libwebsocket_context *this,
+libwebsocket_close_and_free_session(struct libwebsocket_context *context,
 						      struct libwebsocket *wsi);
 
 #endif

lib/private-libwebsockets.h

@@ -68,6 +68,16 @@ static inline void debug(const char *format, ...)
 }
 #endif
 
+
+/*
+ * Mac OSX as well as iOS do not define the MSG_NOSIGNAL flag,
+ * but happily have something equivalent in the SO_NOSIGPIPE flag.
+ */
+#ifdef __APPLE__
+#define MSG_NOSIGNAL SO_NOSIGPIPE 
+#endif
+
+
 #define FD_HASHTABLE_MODULUS 32
 #define MAX_CLIENTS 100
 #define LWS_MAX_HEADER_NAME_LENGTH 64
@@ -262,3 +272,13 @@ insert_wsi(struct libwebsocket_context *this, struct libwebsocket *wsi);
 
 extern int
 delete_from_fd(struct libwebsocket_context *this, int fd);
+
+#ifndef LWS_OPENSSL_SUPPORT
+
+unsigned char *
+SHA1(const unsigned char *d, size_t n, unsigned char *md);
+
+void
+MD5(const unsigned char *input, int ilen, unsigned char *output);
+
+#endif

libwebsockets-api-doc.html

@@ -440,7 +440,7 @@ This function creates a connection to a remote server
 <h2>callback - User server actions</h2>
 <i>int</i>
 <b>callback</b>
-(<i>struct libwebsocket_context *</i> <b>this</b>,
+(<i>struct libwebsocket_context *</i> <b>context</b>,
 <i>struct libwebsocket *</i> <b>wsi</b>,
 <i>enum libwebsocket_callback_reasons</i> <b>reason</b>,
 <i>void *</i> <b>user</b>,
@@ -448,8 +448,6 @@ This function creates a connection to a remote server
 <i>size_t</i> <b>len</b>)
 <h3>Arguments</h3>
 <dl>
-<dt><b>this</b>
-<dd>Websockets context
 <dt><b>wsi</b>
 <dd>Opaque websocket instance pointer
 <dt><b>reason</b>
@@ -604,7 +602,7 @@ internal polling loop, you can just ignore it.
 <h2>struct libwebsocket_protocols - List of protocols and handlers server supports.</h2>
 <b>struct libwebsocket_protocols</b> {<br>
 &nbsp; &nbsp; <i>const char *</i> <b>name</b>;<br>
-&nbsp; &nbsp; <i>int (*</i><b>callback</b>) <i>(struct libwebsocket_context * this,struct libwebsocket *wsi,enum libwebsocket_callback_reasons reason, void *user,void *in, size_t len)</i>;<br>
+&nbsp; &nbsp; <i>int (*</i><b>callback</b>) <i>(struct libwebsocket_context * context,struct libwebsocket *wsi,enum libwebsocket_callback_reasons reason, void *user,void *in, size_t len)</i>;<br>
 &nbsp; &nbsp; <i>size_t</i> <b>per_session_data_size</b>;<br>
 &nbsp; &nbsp; <i>struct libwebsocket_context *</i> <b>owning_server</b>;<br>
 &nbsp; &nbsp; <i>int</i> <b>broadcast_socket_port</b>;<br>