发送http请求的代码实现
#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 extern int h_errno; int sockfd; char *hname = "yunpian.com"; char *send_sms_json = "/v1/sms/send.json"; char *get_user_json = "/v1/user/get.json"; /** * 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: %s\r\n" "Content-type: application/x-www-form-urlencoded\r\n" "Content-length: %zu\r\n\r\n" "%s", page, hname, strlen(poststr), poststr); write(sockfd, sendline, strlen(sendline)); while ((n = read(sockfd, recvline, MAXLINE)) > 0) { recvline[n] = '\0'; printf("%s", recvline); } return n; } /** * 查账户信息 */ ssize_t get_user(char *apikey) { char params[MAXPARAM + 1]; char *cp = params; sprintf(cp,"apikey=%s", apikey); return http_post(get_user_json, cp); } /** * 使用通用接口发短信 */ ssize_t send_sms(char *apikey, char *mobile, char *text) { char params[MAXPARAM + 1]; char *cp = params; sprintf(cp,"apikey=%s&mobile=%s&text=%s", apikey, mobile, text); return http_post(send_sms_json, cp); } int main(void) { struct sockaddr_in servaddr; char **pptr; char str[50]; struct hostent *hptr; if ((hptr = gethostbyname(hname)) == NULL) { fprintf(stderr, "通过域名获取IP失败: %s: %s", hname, hstrerror(h_errno)); exit(1); } printf("域名: %s\n", hptr->h_name); if (hptr->h_addrtype == AF_INET && (pptr = hptr->h_addr_list) != NULL) { printf("IP: %s\n", inet_ntop(hptr->h_addrtype, *pptr, str, sizeof(str))); } else { fprintf(stderr, "Error call inet_ntop \n"); exit(1); } //建立socket连接 sockfd = socket(AF_INET, SOCK_STREAM, 0); bzero(&servaddr, sizeof(servaddr)); servaddr.sin_family = AF_INET; servaddr.sin_port = htons(80); inet_pton(AF_INET, str, &servaddr.sin_addr); connect(sockfd, (SA *) & servaddr, sizeof(servaddr)); //修改为您的apikey char *apikey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; //修改为您要发送的手机号 char *mobile = "188xxxxxxxx"; //设置您要发送的内容 char *text = "您的验证码是1234"; /**************** 查账户信息调用示例 *****************/ get_user(apikey); /**************** 使用通用接口发短信 *****************/ //send_sms(apikey, mobile, text); close(sockfd); exit(0); }
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