#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

//线上线下接口宏开关

#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";

/**

    • 发http post请求
  • /
    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\r\n"
    "Host: sms.253.com\r\n"
    "Content-type: application/x-www-form-urlencoded\r\n"
    "Content-length: %zu\r\n\r\n"
    "%s", page, strlen(poststr), poststr);
    write(sockfd, sendline, strlen(sendline));
    printf("\n%s", sendline);
    printf("\n--------------------------\n");
    while ((n = read(sockfd, recvline, MAXLINE)) > 0) {
    recvline[n] = '\0';
    printf("%s\n", recvline);
    }
    return n;
    }

/**

    • 查账户余额
  • /
    ssize_t get_balance(char
    un, char pw)
    {
    char params[MAXPARAM + 1];
    char
    cp = params;

    sprintf(cp,"un=%s&pw=%s", un, pw);

    return http_post(query_balance_uri, cp);
    }

/**

    • 发送短信
  • /
    ssize_t send_sms(char
    un, char pw, char phone, char msg)
    {
    char params[MAXPARAM + 1];
    char
    cp = params;

    sprintf(cp,"un=%s&pw=%s&phone=%s&msg=%s&rd=1", un, pw, phone, msg);    

    return http_post(send_sms_uri, cp);
    }

int main(void)
{
struct sockaddr_in servaddr;
char str[50];

//建立socket连接
sockfd = socket(AF_INET, SOCK_STREAM, 0);
bzero(&servaddr, sizeof(servaddr));
servaddr.sin_addr.s_addr = inet_addr(hostname);
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(80);
inet_pton(AF_INET, str, &servaddr.sin_addr);
connect(sockfd, (SA *) & servaddr, sizeof(servaddr));

    char *un = "账号";
    char *pw = "密码";
    char *phone = "手机号";
    //必须带签名
    char *msg = "【253云通讯】您的验证码是123400";

//get_balance(un, pw);
send_sms(un, pw, phone, msg);
close(sockfd);
exit(0);

}