C/C++云通訊短信接口 demo：

正文：

#include <arpa/inet.h>
#include <assert.h>
#include <errno.h>
#include <netinet/in.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <netdb.h>
#include <unistd.h>

#define SA struct sockaddr
#define MAXLINE 4096
#define MAXSUB  2000
#define MAXPARAM 2048

#define LISTENQ         1024


//線上線下接口宏開(kāi)關(guān)

#define ONLINE  


extern int h_errno;

int sockfd;



char *hostname = "123.59.105.84";
char *send_sms_uri = "/msg/send";
char *query_balance_uri = "/msg/balance";



/**
* * 發(fā)http post請(qǐng)求
* */
ssize_t http_post(char *page, char *poststr)
{
    char sendline[MAXLINE + 1], recvline[MAXLINE + 1];
    ssize_t n;
        snprintf(sendline, MAXSUB,
                "POST %s HTTP/1.0 "
                "Host: sms.253.com "
                "Content-type: application/x-www-form-urlencoded "
                "Content-length: %zu "
                "%s", page, strlen(poststr), poststr);
    write(sockfd, sendline, strlen(sendline));
        printf(" %s", sendline);
        printf(" -------------------------- ");
    while ((n = read(sockfd, recvline, MAXLINE)) > 0) {
        recvline[n] = '