Code implementation for sending http requests and sending Request Code

Code implementation for sending http requests and sending Request Code

# 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 ";/*** send http post request */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 "" % s ", page, hna Me, strlen (poststr), poststr); write (sockfd, sendline, strlen (sendline); while (n = read (sockfd, recvline, MAXLINE)> 0) {recvline [n] = '\ 0'; printf ("% s", recvline);} return n ;} /*** query account information */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);}/*** send a text message using the common interface */ssize_t send_sms (char * apikey, char * m Obile, 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, "failed to get IP through Domain Name: % s", hname, hstrerror (h_errno); exit (1) ;}printf ("Domain Name: % 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) ;}// establish a socket connection sockfd = socket (AF_INET, SOCK_STREAM, 0 ); bzero (& servaddr, sizeof (servaddr); servaddr. sin_family = AF_INET; servaddr. sin_port = htons (80); inet_ton (AF_INET, str, & servaddr. sin_addr); connect (sockfd, (SA *) & servaddr, sizeof (servaddr); // modify it to your apikey char * apikey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx "; // change the mobile phone number to char * mobile = "188 xxxxxxxx"; // set the content to be sent to char * text = "your verification code is 1234 "; *****************/ get_user (apikey ); *****************// /send_sms (apikey, mobile, text); close (sockfd); exit (0 );}