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#include <stdio.h> | |
#include <string.h> | |
#include <stdlib.h> | |
#include <unistd.h> | |
#include <fcntl.h> | |
#include <netinet/tcp.h> | |
#include <sys/socket.h> | |
#include <sys/types.h> | |
#include <netinet/in.h> | |
#include <netdb.h> | |
int socket_connect(char *host, in_port_t port){ | |
struct hostent *hp; | |
struct sockaddr_in addr; | |
int on = 1, sock; | |
if((hp = gethostbyname(host)) == NULL){ | |
herror("gethostbyname"); | |
exit(1); | |
} | |
bcopy(hp->h_addr, &addr.sin_addr, hp->h_length); | |
addr.sin_port = htons(port); | |
addr.sin_family = AF_INET; | |
sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); | |
setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (const char *)&on, sizeof(int)); | |
if(sock == -1){ | |
perror("setsockopt"); | |
exit(1); | |
} | |
if(connect(sock, (struct sockaddr *)&addr, sizeof(struct sockaddr_in)) == -1){ | |
perror("connect"); | |
exit(1); | |
} | |
return sock; | |
} | |
#define BUFFER_SIZE 1024 | |
int main(int argc, char *argv[]){ | |
int fd; | |
char buffer[BUFFER_SIZE]; | |
if(argc < 3){ | |
fprintf(stderr, "Usage: %s <hostname> <port>\n", argv[0]); | |
exit(1); | |
} | |
fd = socket_connect(argv[1], atoi(argv[2])); | |
write(fd, "GET /\r\n", strlen("GET /\r\n")); // write(fd, char[]*, len); | |
bzero(buffer, BUFFER_SIZE); | |
while(read(fd, buffer, BUFFER_SIZE - 1) != 0){ | |
fprintf(stderr, "%s", buffer); | |
bzero(buffer, BUFFER_SIZE); | |
} | |
shutdown(fd, SHUT_RDWR); | |
close(fd); | |
return 0; | |
} |
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