api-test.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>

#define VFUN_URL "http://vfun:4380/wtf"
#define AUDIO_FILE "/data/english_phonecall.wav"

struct buffer {
    char *data;
    size_t len;
};

static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *userp) {
    size_t total = size * nmemb;
    struct buffer *b = userp;
    b->data = realloc(b->data, b->len + total + 1);
    memcpy(b->data + b->len, ptr, total);
    b->len += total;
    b->data[b->len] = '\0';
    return total;
}

int main(void) {
    curl_global_init(CURL_GLOBAL_ALL);
    CURL *curl = curl_easy_init();

    curl_mime *mime = curl_mime_init(curl);
    curl_mimepart *part = curl_mime_addpart(mime);
    curl_mime_name(part, "file-binary");
    curl_mime_filedata(part, AUDIO_FILE);

    struct buffer resp = {0};

    curl_easy_setopt(curl, CURLOPT_URL, VFUN_URL);
    curl_easy_setopt(curl, CURLOPT_MIMEPOST, mime);
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb);
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, &resp);

    CURLcode res = curl_easy_perform(curl);
    if (res != CURLE_OK) {
        fprintf(stderr, "curl failed: %s\n", curl_easy_strerror(res));
        return 1;
    }

    long code;
    curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
    printf("HTTP %ld\n%.200s...\n", code, resp.data);

    curl_mime_free(mime);
    curl_easy_cleanup(curl);
    free(resp.data);
    curl_global_cleanup();
    return code == 200 ? 0 : 1;
}