1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
| int main(int argc, char *argv[]) { if(argc < 3) { printf("Usage : %s <IP> <port>\n", argv[0]); exit(1); } int sockfd = socket(AF_INET, SOCK_STREAM, 0); if(sockfd < 0) { perror("Socket Error"); exit(1); }
struct sockaddr_in serveraddr; memset(&serveraddr, 0, sizeof(serveraddr)); serveraddr.sin_family = AF_INET; serveraddr.sin_port = htons(atoi(argv[2])); inet_pton(AF_INET, argv[1], &serveraddr.sin_addr.s_addr);
if(connect(sockfd, (struct sockaddr*)&serveraddr, sizeof(serveraddr)) < 0) { perror("Connect Error"); exit(1); }
char buffer[100]; memset(buffer, 0, sizeof(buffer)); size_t size;
while(1) { fgets(buffer, 100, stdin);
if(!strcmp(buffer, "q\n") || !strcmp(buffer, "Q\n")) { write(sockfd, buffer, strlen(buffer)); shutdown(sockfd, SHUT_WR); return; } if((size = write(sockfd, buffer, strlen(buffer))) <0) { perror("Write to Server Error"); }
if((size = read(sockfd, buffer, sizeof(buffer))) < 0) { perror("Read Server information Error"); }
if(write(STDOUT_FILENO, buffer, size) != size) { perror("Write Screen Error"); } } close(sockfd);
return 0; }
|