74 lines
1.4 KiB
C
74 lines
1.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <string.h>
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int main(int argc, char *argv[]) {
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int sockfd, portno, n;
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struct sockaddr_in serv_addr;
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struct hostent *server;
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char buffer[256];
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if (argc < 2) {
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fprintf(stderr,"usage %s command\n", argv[0]);
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exit(0);
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}
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portno = 8101;
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/* Create a socket point */
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sockfd = socket(AF_INET, SOCK_STREAM, 0);
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if (sockfd < 0) {
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perror("ERROR opening socket");
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exit(1);
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}
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server = gethostbyname("localhost");
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if (server == NULL) {
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fprintf(stderr,"ERROR, no such host\n");
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exit(0);
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}
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bzero((char *) &serv_addr, sizeof(serv_addr));
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serv_addr.sin_family = AF_INET;
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bcopy((char *)server->h_addr, (char *)&serv_addr.sin_addr.s_addr, server->h_length);
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serv_addr.sin_port = htons(portno);
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/* Now connect to the server */
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if (connect(sockfd, (struct sockaddr*)&serv_addr, sizeof(serv_addr)) < 0) {
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perror("ERROR connecting");
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exit(1);
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}
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bzero(buffer, 256);
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for (int i = 1; i < argc; i++) {
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strcat(buffer, argv[i]);
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strcat(buffer, " ");
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}
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/* Send message to the server */
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n = write(sockfd, &buffer, 256);
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if (n < 0) {
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perror("ERROR writing to socket");
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exit(1);
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}
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/* Now read server response */
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bzero(buffer,256);
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n = read(sockfd, &buffer, 256);
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if (n < 0) {
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perror("ERROR reading from socket");
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exit(1);
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}
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if (buffer != NULL)
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printf("%s\n", buffer);
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return 0;
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}
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