129 lines
3.1 KiB
C
129 lines
3.1 KiB
C
/*****************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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*/
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#include <stdio.h>
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#include <curl/curl.h>
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struct data {
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char trace_ascii; /* 1 or 0 */
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};
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static
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void dump(const char *text,
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FILE *stream, unsigned char *ptr, size_t size,
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char nohex)
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{
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size_t i;
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size_t c;
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unsigned int width=0x10;
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if(nohex)
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/* without the hex output, we can fit more on screen */
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width = 0x40;
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fprintf(stream, "%s, %010.10ld bytes (0x%08.8lx)\n",
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text, (long)size, (long)size);
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for(i=0; i<size; i+= width) {
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fprintf(stream, "%04.4lx: ", (long)i);
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if(!nohex) {
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/* hex not disabled, show it */
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for(c = 0; c < width; c++)
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if(i+c < size)
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fprintf(stream, "%02x ", ptr[i+c]);
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else
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fputs(" ", stream);
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}
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for(c = 0; (c < width) && (i+c < size); c++) {
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/* check for 0D0A; if found, skip past and start a new line of output */
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if (nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
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i+=(c+2-width);
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break;
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}
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fprintf(stream, "%c",
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(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
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/* check again for 0D0A, to avoid an extra \n if it's at width */
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if (nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
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i+=(c+3-width);
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break;
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}
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}
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fputc('\n', stream); /* newline */
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}
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fflush(stream);
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}
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static
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int my_trace(CURL *handle, curl_infotype type,
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char *data, size_t size,
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void *userp)
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{
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struct data *config = (struct data *)userp;
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const char *text;
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(void)handle; /* prevent compiler warning */
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switch (type) {
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case CURLINFO_TEXT:
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fprintf(stderr, "== Info: %s", data);
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default: /* in case a new one is introduced to shock us */
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return 0;
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case CURLINFO_HEADER_OUT:
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text = "=> Send header";
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break;
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case CURLINFO_DATA_OUT:
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text = "=> Send data";
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break;
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case CURLINFO_SSL_DATA_OUT:
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text = "=> Send SSL data";
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break;
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case CURLINFO_HEADER_IN:
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text = "<= Recv header";
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break;
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case CURLINFO_DATA_IN:
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text = "<= Recv data";
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break;
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case CURLINFO_SSL_DATA_IN:
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text = "<= Recv SSL data";
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break;
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}
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dump(text, stderr, (unsigned char *)data, size, config->trace_ascii);
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return 0;
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}
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int main(void)
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{
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CURL *curl;
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CURLcode res;
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struct data config;
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config.trace_ascii = 1; /* enable ascii tracing */
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curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
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curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &config);
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/* the DEBUGFUNCTION has no effect until we enable VERBOSE */
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curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
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curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
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res = curl_easy_perform(curl);
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/* always cleanup */
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curl_easy_cleanup(curl);
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}
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return 0;
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}
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