rest.c

/**
 * Copyright 2015, William Dignazio
 */
#include <stdlib.h>
#include <stdio.h> 
#include <string.h> 
#include <curl/curl.h> 
#include <twilio.h> 

/* Buils the entire resource uri for the twilio api function */
char*
build_uri(char *resource) {
    char *base = malloc(strlen(BASEURL)+
            strlen(asid) + 
            strlen(atoken) + 
            strlen(resource)); 
    sprintf(base, BASEURL, asid, atoken, resource); 
    char *uri = malloc(strlen(base)+strlen(asid)); 
    sprintf(uri, base, asid); 
    /* Make sure you free the memory later after using this. */
    return uri;
}

/* POST message to send a sms message to the desired recpient */
void 
post_sms(char *snd, char *rec, char *msg) {
    char *uri = build_uri(POST_SMS); 
    char *bodybase = "From=%s&To=%s&Body=%s"; 
    char *buf = malloc(strlen(bodybase)+
            strlen(snd) + 
            strlen(rec) + 
            strlen(msg));
    sprintf(buf, bodybase, snd, rec, msg); 
   
    /* Set the proper fields for posting. */
    curl_easy_setopt(handle, CURLOPT_URL, uri); 
    curl_easy_setopt(handle, CURLOPT_POSTFIELDS, buf);  
    curl_easy_perform(handle); 
    
    free(buf); 
    free(uri); 
}