quickjs-tart

quickjs-based runtime for wallet-core logic
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lib2302.c (3530B)

      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
      9  *
     10  * This software is licensed as described in the file COPYING, which
     11  * you should have received as part of this distribution. The terms
     12  * are also available at https://curl.se/docs/copyright.html.
     13  *
     14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     15  * copies of the Software, and permit persons to whom the Software is
     16  * furnished to do so, under the terms of the COPYING file.
     17  *
     18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     19  * KIND, either express or implied.
     20  *
     21  * SPDX-License-Identifier: curl
     22  *
     23  ***************************************************************************/
     24 #include "first.h"
     25 
     26 #ifndef CURL_DISABLE_WEBSOCKETS
     27 
     28 struct ws_data {
     29   CURL *easy;
     30   char *buf;
     31   size_t blen;
     32   size_t nwrites;
     33   int has_meta;
     34   int meta_flags;
     35 };
     36 
     37 #define LIB2302_BUFSIZE (1024 * 1024)
     38 
     39 static void flush_data(struct ws_data *wd)
     40 {
     41   size_t i;
     42 
     43   if(!wd->nwrites)
     44     return;
     45 
     46   for(i = 0; i < wd->blen; ++i)
     47     curl_mprintf("%02x ", (unsigned char)wd->buf[i]);
     48 
     49   curl_mprintf("\n");
     50   if(wd->has_meta)
     51     curl_mprintf("RECFLAGS: %x\n", wd->meta_flags);
     52   else
     53     curl_mfprintf(stderr, "RECFLAGS: NULL\n");
     54   wd->blen = 0;
     55   wd->nwrites = 0;
     56 }
     57 
     58 static size_t add_data(struct ws_data *wd, const char *buf, size_t blen,
     59                        const struct curl_ws_frame *meta)
     60 {
     61   if((wd->nwrites == 0) ||
     62      (!!meta != !!wd->has_meta) ||
     63      (meta && meta->flags != wd->meta_flags)) {
     64     if(wd->nwrites > 0)
     65       flush_data(wd);
     66     wd->has_meta = (meta != NULL);
     67     wd->meta_flags = meta ? meta->flags : 0;
     68   }
     69 
     70   if(wd->blen + blen > LIB2302_BUFSIZE) {
     71     return 0;
     72   }
     73   memcpy(wd->buf + wd->blen, buf, blen);
     74   wd->blen += blen;
     75   wd->nwrites++;
     76   return blen;
     77 }
     78 
     79 static size_t t2302_write_cb(char *buffer, size_t size, size_t nitems, void *p)
     80 {
     81   struct ws_data *ws_data = p;
     82   size_t incoming = nitems;
     83   const struct curl_ws_frame *meta;
     84   (void)size;
     85 
     86   meta = curl_ws_meta(ws_data->easy);
     87   incoming = add_data(ws_data, buffer, incoming, meta);
     88 
     89   if(nitems != incoming)
     90     curl_mfprintf(stderr, "returns error from callback\n");
     91   return nitems;
     92 }
     93 #endif
     94 
     95 static CURLcode test_lib2302(char *URL)
     96 {
     97 #ifndef CURL_DISABLE_WEBSOCKETS
     98   CURL *curl;
     99   CURLcode res = CURLE_OK;
    100   struct ws_data ws_data;
    101 
    102   global_init(CURL_GLOBAL_ALL);
    103 
    104   memset(&ws_data, 0, sizeof(ws_data));
    105   ws_data.buf = (char *)calloc(LIB2302_BUFSIZE, 1);
    106   if(ws_data.buf) {
    107     curl = curl_easy_init();
    108     if(curl) {
    109       ws_data.easy = curl;
    110 
    111       curl_easy_setopt(curl, CURLOPT_URL, URL);
    112       /* use the callback style */
    113       curl_easy_setopt(curl, CURLOPT_USERAGENT, "webbie-sox/3");
    114       curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
    115       curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, t2302_write_cb);
    116       curl_easy_setopt(curl, CURLOPT_WRITEDATA, &ws_data);
    117       res = curl_easy_perform(curl);
    118       curl_mfprintf(stderr, "curl_easy_perform() returned %d\n", res);
    119       /* always cleanup */
    120       curl_easy_cleanup(curl);
    121       flush_data(&ws_data);
    122     }
    123     free(ws_data.buf);
    124   }
    125   curl_global_cleanup();
    126   return res;
    127 #else
    128   NO_SUPPORT_BUILT_IN
    129 #endif
    130 }