标签：plain pad nbsp eva ble close .com ati eof
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#include <stdio.h>#include <sys/socket.h>#include <sys/types.h>#include <time.h>#include <errno.h>#include <signal.h>#include <stdlib.h>#include <string.h>#include <unistd.h>#include <sys/wait.h>#include <sys/time.h>#include <netinet/in.h>#include <arpa/inet.h>#define IPSTR "61.147.124.120"#define PORT 80#define BUFSIZE 1024int main(int argc, char **argv){ int sockfd, ret, i, h; struct sockaddr_in servaddr; char str1[4096], str2[4096], buf[BUFSIZE], *str; socklen_t len; fd_set t_set1; struct timeval tv; if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0 ) { printf("创建网络连接失败,本线程即将终止---socket error!\n"); exit(0); }; bzero(&servaddr, sizeof(servaddr)); servaddr.sin_family = AF_INET; servaddr.sin_port = htons(PORT); if (inet_pton(AF_INET, IPSTR, &servaddr.sin_addr) <= 0 ){ printf("创建网络连接失败,本线程即将终止--inet_pton error!\n"); exit(0); }; if (connect(sockfd, (struct sockaddr *)&servaddr, sizeof(servaddr)) < 0){ printf("连接到服务器失败,connect error!\n"); exit(0); } printf("与远端建立了连接\n"); //发送数据 memset(str2, 0, 4096); strcat(str2, "qqCode=474497857"); str=(char *)malloc(128); len = strlen(str2); sprintf(str, "%d", len); memset(str1, 0, 4096); strcat(str1, "POST /webservices/qqOnlineWebService.asmx/qqCheckOnline HTTP/1.1\n"); strcat(str1, "Host: www.webxml.com.cn\n"); strcat(str1, "Content-Type: application/x-www-form-urlencoded\n"); strcat(str1, "Content-Length: "); strcat(str1, str); strcat(str1, "\n\n"); strcat(str1, str2); strcat(str1, "\r\n\r\n"); printf("%s\n",str1); ret = write(sockfd,str1,strlen(str1)); if (ret < 0) { printf("发送失败！错误代码是%d，错误信息是‘%s‘\n",errno, strerror(errno)); exit(0); }else{ printf("消息发送成功，共发送了%d个字节！\n\n", ret); } FD_ZERO(&t_set1); FD_SET(sockfd, &t_set1); while(1){ sleep(2); tv.tv_sec= 0; tv.tv_usec= 0; h= 0; printf("--------------->1"); h= select(sockfd +1, &t_set1, NULL, NULL, &tv); printf("--------------->2"); //if (h == 0) continue; if (h < 0) { close(sockfd); printf("在读取数据报文时SELECT检测到异常，该异常导致线程终止！\n"); return -1; }; if (h > 0){ memset(buf, 0, 4096); i= read(sockfd, buf, 4095); if (i==0){ close(sockfd); printf("读取数据报文时发现远端关闭，该线程终止！\n"); return -1; } printf("%s\n", buf); } } close(sockfd); return 0;} |
Linux下用c语言实现发送http请求 方式可以Get或者Post例程参考
标签：plain pad nbsp eva ble close .com ati eof
原文地址：https://www.cnblogs.com/wdy0505/p/10101613.html
