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#include <stdio.h>
#include <errno.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <netdb.h>
#define BUF_LEN 512
int sfd;
void usage(const char *argv0);
int ircWrite(char *format, ...);
int ircRead();
int ircQuit();
int main(int argc, char *argv[]) {
int s, c;
struct addrinfo hints, *result;
if (argc < 3) {
usage(argv[0]);
}
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
if ((s = getaddrinfo(argv[1], argv[2], &hints, &result)) != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(s));
exit(EXIT_FAILURE);
}
sfd = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
if (sfd < 0) {
fprintf(stderr, "error creating socket\n");
perror("socket");
return errno;
}
c = connect(sfd, result->ai_addr, result->ai_addrlen);
fprintf(stderr, "connecting to %s\n", result->ai_canonname);
if (c == -1) {
fprintf(stderr, "error connecting to %s\n", result->ai_canonname);
close(sfd);
perror("connect");
return errno;
}
freeaddrinfo(result);
// connect as USER
char *startmsg;
startmsg = "NICK hirC\r\nUSER hirC- 8 x :hirC-\r\n";
ircWrite(startmsg);
printf("%s", startmsg);
ircRead();
ircWrite("JOIN #abcdefghhh\r\n");
printf("JOIN #abcdefghhh\r\n");
ircRead();
printf("we've read\n");
ircWrite("PRIVMSG #abcdefghhh :hi there!\r\n");
printf("PRIVMSG #abcdefghhh :hi there!\r\n");
ircRead();
printf("we've read after PRIVMSG\n");
char *quit = 0;
size_t linelen = 0;
printf("gonna go into loop\n");
while (quit == 0) {
char *line = NULL;
//printf("going into loop\n");
// read from stdin
//printf("gonna getline\n");
if (getline(&line, &linelen, stdin) == -1) quit = (char *) 2;
//printf("gotline: %s\n", line);
if (strncmp(line, "/quit", 5) == 0) return ircQuit(); //quit = (char *) 1;
//printf("strncmp\n");
ircWrite(line);
free(line);
ircRead();
}
close(sfd);
return 0;
}
void usage(const char *argv0){
fprintf(stderr, "usage: %s host port\n", argv0);
exit(1);
}
int ircWrite(char *msg, ...){
ssize_t ret;
int len = strlen(msg);
ret = send(sfd, msg, len, 0);
if (ret != (ssize_t) len) {
perror("ircWrite");
return errno;
}
return 0;
}
int ircRead(){
char buff[BUF_LEN];
memset(&buff, 0, sizeof buff);
ssize_t ret;
ret = recv(sfd, buff, BUF_LEN, 0);
printf("Received %zd bytes:\n%s\n", ret, buff);
if (ret < 0) {
perror("ircRead");
return errno;
}
return 0;
}
int ircQuit(){
ircWrite("QUIT");
return ircRead();
}
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