79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
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#include "../basic.h"
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typedef struct message {
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char data[100];
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}t_message;
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void sigpipeaction (int signal){
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//fprintf(stderr, "Sigpipe catturato\n");
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}
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int main(int argc, char **argv) {
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//////////////////////////////////////////////////////////// SIGNALS
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///////SIGPIPE
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struct sigaction sigpipestructure;
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sigpipestructure.sa_handler = sigpipeaction;
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sigpipestructure.sa_flags = 0;
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sigaction (SIGPIPE, &sigpipestructure, NULL);
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//////////////////////////////////////////////////////////// END SIGNALS
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int sockfd;
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struct sockaddr_in servaddr;
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if (argc != 3){
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printf("usage: daytimecli <indirizzoIP> <porta> \n");
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exit(0);
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}
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if( (sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0 ){
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printf("socket error\n");
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exit(0);
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}
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bzero(&servaddr, sizeof(servaddr));
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servaddr.sin_family = AF_INET;
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servaddr.sin_port = htons(atoi(argv[2])); /* server port */
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if (inet_pton(AF_INET, argv[1], &servaddr.sin_addr) <= 0){
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printf("inet_pton error for %s\n", argv[1]);
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exit(0);
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}
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if (connect(sockfd, (struct sockaddr *) &servaddr, sizeof(servaddr)) < 0){
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printf("connect error\n");
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exit(0);
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}
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t_message m;
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fprintf (stdout,"Send Text: ");
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fscanf (stdin,"%999[^\n]%*c",m.data);
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int written;
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for (written = write (sockfd,&m,sizeof(m)); written <= 0;written = write (sockfd,&m,sizeof(m))){
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if (errno == EINTR){continue;} else {break;}
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}
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int ridden;
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if(written > 0){
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for (ridden = read (sockfd,&m,sizeof(m)); ridden <= 0;ridden = read (sockfd,&m,sizeof(m))){
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if (errno == EINTR){continue;} else {break;}
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}
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if(ridden > 0){
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fprintf(stdout,"%s from server\n",m.data);
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} else {
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fprintf(stdout,"can't read from server\n",m.data);
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}
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} else {
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fprintf(stdout,"can't write to server\n",m.data);
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}
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exit(0);
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}
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