#include "test.h" static char data[]="this is what we post to the silly web server\n"; struct WriteThis { char *readptr; size_t sizeleft; }; static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *userp) { struct WriteThis *pooh = (struct WriteThis *)userp; if(size*nmemb < 1) return 0; if(pooh->sizeleft) { *(char *)ptr = pooh->readptr[0]; /* copy one single byte */ pooh->readptr++; /* advance pointer */ pooh->sizeleft--; /* less data left */ return 1; /* we return 1 byte at a time! */ } return -1; /* no more data left to deliver */ } int test(char *URL) { CURL *curl; CURLcode res=CURLE_OK; struct WriteThis pooh; pooh.readptr = data; pooh.sizeleft = strlen(data); curl = curl_easy_init(); if(curl) { /* First set the URL that is about to receive our POST. */ curl_easy_setopt(curl, CURLOPT_URL, URL); /* Now specify we want to POST data */ curl_easy_setopt(curl, CURLOPT_POST, TRUE); /* Set the expected POST size */ curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (long)pooh.sizeleft); /* we want to use our own read function */ curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback); /* pointer to pass to our read function */ curl_easy_setopt(curl, CURLOPT_INFILE, &pooh); /* get verbose debug output please */ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1); /* include headers in the output */ curl_easy_setopt(curl, CURLOPT_HEADER, TRUE); /* Perform the request, res will get the return code */ res = curl_easy_perform(curl); /* always cleanup */ curl_easy_cleanup(curl); } return res; }