mirror of
https://github.com/warmcat/libwebsockets.git
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c9731c5f17
This is a huge patch that should be a global NOP. For unix type platforms it enables -Wconversion to issue warnings (-> error) for all automatic casts that seem less than ideal but are normally concealed by the toolchain. This is things like passing an int to a size_t argument. Once enabled, I went through all args on my default build (which build most things) and tried to make the removed default cast explicit. With that approach it neither change nor bloat the code, since it compiles to whatever it was doing before, just with the casts made explicit... in a few cases I changed some length args from int to size_t but largely left the causes alone. From now on, new code that is relying on less than ideal casting will complain and nudge me to improve it by warnings.
121 lines
2.7 KiB
C
121 lines
2.7 KiB
C
/*
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* lejp test app
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*
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* Written in 2010-2019 by Andy Green <andy@warmcat.com>
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*
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* This file is made available under the Creative Commons CC0 1.0
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* Universal Public Domain Dedication.
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*
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* This demonstrates a minimal http server that performs a form GET with a couple
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* of parameters. It dumps the parameters to the console log and redirects
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* to another page.
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*/
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#include <libwebsockets.h>
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#include <string.h>
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static const char * const reason_names[] = {
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"LEJPCB_CONSTRUCTED",
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"LEJPCB_DESTRUCTED",
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"LEJPCB_START",
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"LEJPCB_COMPLETE",
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"LEJPCB_FAILED",
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"LEJPCB_PAIR_NAME",
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"LEJPCB_VAL_TRUE",
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"LEJPCB_VAL_FALSE",
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"LEJPCB_VAL_NULL",
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"LEJPCB_VAL_NUM_INT",
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"LEJPCB_VAL_NUM_FLOAT",
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"LEJPCB_VAL_STR_START",
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"LEJPCB_VAL_STR_CHUNK",
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"LEJPCB_VAL_STR_END",
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"LEJPCB_ARRAY_START",
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"LEJPCB_ARRAY_END",
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"LEJPCB_OBJECT_START",
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"LEJPCB_OBJECT_END",
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"LEJPCB_OBJECT_END_PRE",
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};
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static const char * const tok[] = {
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"dummy___"
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};
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static signed char
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cb(struct lejp_ctx *ctx, char reason)
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{
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char buf[1024], *p = buf, *end = &buf[sizeof(buf)];
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int n;
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for (n = 0; n < ctx->sp; n++)
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*p++ = ' ';
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*p = '\0';
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if (reason & LEJP_FLAG_CB_IS_VALUE) {
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p += lws_snprintf(p, lws_ptr_diff_size_t(end, p), " value '%s' ", ctx->buf);
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if (ctx->ipos) {
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int n;
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p += lws_snprintf(p, lws_ptr_diff_size_t(end, p), "(array indexes: ");
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for (n = 0; n < ctx->ipos; n++)
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p += lws_snprintf(p, lws_ptr_diff_size_t(end, p), "%d ", ctx->i[n]);
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p += lws_snprintf(p, lws_ptr_diff_size_t(end, p), ") ");
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}
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lwsl_notice("%s (%s)\r\n", buf,
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reason_names[(unsigned int)
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(reason) & (LEJP_FLAG_CB_IS_VALUE - 1)]);
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(void)reason_names; /* NO_LOGS... */
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return 0;
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}
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switch (reason) {
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case LEJPCB_COMPLETE:
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lwsl_notice("%sParsing Completed (LEJPCB_COMPLETE)\n", buf);
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break;
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case LEJPCB_PAIR_NAME:
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lwsl_notice("%spath: '%s' (LEJPCB_PAIR_NAME)\n", buf, ctx->path);
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break;
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}
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lwsl_notice("%s%s: path %s match %d statckp %d\r\n", buf, reason_names[(unsigned int)
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(reason) & (LEJP_FLAG_CB_IS_VALUE - 1)], ctx->path,
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ctx->path_match, ctx->pst[ctx->pst_sp].ppos);
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return 0;
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}
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int
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main(int argc, char *argv[])
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{
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int fd, n = 1, ret = 1, m = 0;
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struct lejp_ctx ctx;
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char buf[128];
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lws_set_log_level(7, NULL);
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lwsl_notice("libwebsockets-test-lejp (C) 2017 - 2018 andy@warmcat.com\n");
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lwsl_notice(" usage: cat my.json | libwebsockets-test-lejp\n\n");
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lejp_construct(&ctx, cb, NULL, tok, LWS_ARRAY_SIZE(tok));
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fd = 0;
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while (n > 0) {
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n = (int)read(fd, buf, sizeof(buf));
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if (n <= 0)
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continue;
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m = lejp_parse(&ctx, (uint8_t *)buf, n);
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if (m < 0 && m != LEJP_CONTINUE) {
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lwsl_err("parse failed %d\n", m);
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goto bail;
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}
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}
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lwsl_notice("okay (%d)\n", m);
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ret = 0;
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bail:
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lejp_destruct(&ctx);
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return ret;
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}
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