-/* (C)opyright MMV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * (C)opyright MMV-MMVI Nico Golde <nico at ngolde dot de>
- * See LICENSE file for license details.
- */
+ /* See LICENSE file for license details. */
+#include <sys/select.h>
+
+#include <ctype.h>
#include <errno.h>
-#include <netdb.h>
-#include <netinet/in.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#define PINGTIMEOUT 300
-#define MAXMSG 4096
+#include "arg.h"
+#include "config.h"
-static char *host = "irc.oftc.net";
-static unsigned short port = 6667;
-static char *password = NULL;
+char *argv0;
+static char *host = DEFAULT_HOST;
+static char *port = DEFAULT_PORT;
+static char *password;
static char nick[32];
-
-static char bufin[MAXMSG], bufout[MAXMSG];
+static char bufin[4096];
+static char bufout[4096];
static char channel[256];
-static int srv;
static time_t trespond;
+static FILE *srv;
+
+#undef strlcpy
+#include "strlcpy.c"
+#include "util.c"
static void
-eprint(const char *errstr, ...) {
+pout(char *channel, char *fmt, ...) {
+ static char timestr[80];
+ time_t t;
va_list ap;
- va_start(ap, errstr);
- vfprintf(stderr, errstr, ap);
+ va_start(ap, fmt);
+ vsnprintf(bufout, sizeof bufout, fmt, ap);
va_end(ap);
- exit(EXIT_FAILURE);
-}
-
-static int
-getline(int fd, unsigned int len, char *buf) {
- unsigned int i = 0;
- char c;
-
- do {
- if(read(fd, &c, sizeof(char)) != sizeof(char))
- return -1;
- buf[i++] = c;
- }
- while(c != '\n' && i < len);
- buf[i - 1] = 0;
- return 0;
+ t = time(NULL);
+ strftime(timestr, sizeof timestr, TIMESTAMP_FORMAT, localtime(&t));
+ fprintf(stdout, "%-12s: %s %s\n", channel, timestr, bufout);
}
static void
-pout(char *channel, char *msg) {
- static char timestr[18];
- time_t t = time(0);
+sout(char *fmt, ...) {
+ va_list ap;
- strftime(timestr, sizeof timestr, "%D %R", localtime(&t));
- fprintf(stdout, "%-12.12s: %s %s\n", channel, timestr, msg);
+ va_start(ap, fmt);
+ vsnprintf(bufout, sizeof bufout, fmt, ap);
+ va_end(ap);
+ fprintf(srv, "%s\r\n", bufout);
}
static void
privmsg(char *channel, char *msg) {
- if(channel[0] == 0)
+ if(channel[0] == '\0') {
+ pout("", "No channel to send to");
return;
- snprintf(bufout, sizeof bufout, "<%s> %s", nick, msg);
- pout(channel, bufout);
- snprintf(bufout, sizeof bufout, "PRIVMSG %s :%s\r\n", channel, msg);
- write(srv, bufout, strlen(bufout));
+ }
+ pout(channel, "<%s> %s", nick, msg);
+ sout("PRIVMSG %s :%s", channel, msg);
}
static void
-parsein(char *msg) {
- char *p;
+parsein(char *s) {
+ char c, *p;
- if(msg[0] == 0)
+ if(s[0] == '\0')
return;
- if(msg[0] != ':') {
- privmsg(channel, msg);
- return;
- }
- if(!strncmp(msg + 1, "j ", 2) && (msg[3] == '#'))
- snprintf(bufout, sizeof bufout, "JOIN %s\r\n", msg + 3);
- else if(!strncmp(msg + 1, "l ", 2))
- snprintf(bufout, sizeof bufout, "PART %s :sic - 250 LOC are too much!\r\n", msg + 3);
- else if(!strncmp(msg + 1, "m ", 2)) {
- if((p = strchr(msg + 3, ' ')))
- *(p++) = 0;
- privmsg(msg + 3, p);
+ skip(s, '\n');
+ if(s[0] != COMMAND_PREFIX_CHARACTER) {
+ privmsg(channel, s);
return;
}
- else if(!strncmp(msg + 1, "s ", 2)) {
- strncpy(channel, msg + 3, sizeof channel);
- return;
+ c = *++s;
+ if(c != '\0' && isspace((unsigned char)s[1])) {
+ p = s + 2;
+ switch(c) {
+ case 'j':
+ sout("JOIN %s", p);
+ if(channel[0] == '\0')
+ strlcpy(channel, p, sizeof channel);
+ return;
+ case 'l':
+ s = eat(p, isspace, 1);
+ p = eat(s, isspace, 0);
+ if(!*s)
+ s = channel;
+ if(*p)
+ *p++ = '\0';
+ if(!*p)
+ p = DEFAULT_PARTING_MESSAGE;
+ sout("PART %s :%s", s, p);
+ return;
+ case 'm':
+ s = eat(p, isspace, 1);
+ p = eat(s, isspace, 0);
+ if(*p)
+ *p++ = '\0';
+ privmsg(s, p);
+ return;
+ case 's':
+ strlcpy(channel, p, sizeof channel);
+ return;
+ }
}
- else
- snprintf(bufout, sizeof bufout, "%s\r\n", msg + 1);
- write(srv, bufout, strlen(bufout));
+ sout("%s", s);
}
static void
-parsesrv(char *msg) {
- char *chan, *cmd, *p, *txt, *usr;
+parsesrv(char *cmd) {
+ char *usr, *par, *txt;
- txt = NULL;
usr = host;
- if(!msg || !(*msg))
+ if(!cmd || !*cmd)
return;
- if(msg[0] != ':')
- cmd = msg;
- else {
- if(!(p = strchr(msg, ' ')))
+ if(cmd[0] == ':') {
+ usr = cmd + 1;
+ cmd = skip(usr, ' ');
+ if(cmd[0] == '\0')
return;
- *p = 0;
- usr = msg + 1;
- cmd = ++p;
- if((p = strchr(usr, '!')))
- *p = 0;
+ skip(usr, '!');
}
- for(p = cmd; *p; p++) /* remove CRLFs */
- if(*p == '\r' || *p == '\n')
- *p = 0;
- if((p = strchr(cmd, ':'))) {
- *p = 0;
- txt = ++p;
- }
- if(!strncmp("PONG", cmd, 4))
+ skip(cmd, '\r');
+ par = skip(cmd, ' ');
+ txt = skip(par, ':');
+ trim(par);
+ if(!strcmp("PONG", cmd))
return;
- if(!strncmp("PRIVMSG", cmd, 7) && txt) {
- if(!(p = strchr(cmd, ' ')))
- return;
- *p = 0;
- chan = ++p;
- for(; *p && *p != ' '; p++);
- *p = 0;
- snprintf(bufout, sizeof bufout, "<%s> %s", usr, txt);
- pout(chan, bufout);
- }
- else if(!strncmp("PING", cmd, 4) && txt) {
- snprintf(bufout, sizeof bufout, "PONG %s\r\n", txt);
- write(srv, bufout, strlen(bufout));
- }
+ if(!strcmp("PRIVMSG", cmd))
+ pout(par, "<%s> %s", usr, txt);
+ else if(!strcmp("PING", cmd))
+ sout("PONG %s", txt);
else {
- snprintf(bufout, sizeof bufout, ">< %s: %s", cmd, txt ? txt : "");
- pout(usr, bufout);
- if(!strncmp("NICK", cmd, 4) && !strncmp(usr, nick, sizeof nick) && txt)
- strncpy(nick, txt, sizeof nick);
+ pout(usr, ">< %s (%s): %s", cmd, par, txt);
+ if(!strcmp("NICK", cmd) && !strcmp(usr, nick))
+ strlcpy(nick, txt, sizeof nick);
}
}
+
+static void
+usage(void) {
+ eprint("usage: sic [-h host] [-p port] [-n nick] [-k keyword] [-v]\n", argv0);
+}
+
int
main(int argc, char *argv[]) {
- int i;
struct timeval tv;
- struct hostent *hp;
- static struct sockaddr_in addr; /* initially filled with 0's */
- char ping[256];
+ const char *user = getenv("USER");
+ int n;
fd_set rd;
- strncpy(nick, getenv("USER"), sizeof nick);
- for(i = 1; i < argc; i++)
- if(!strncmp(argv[i], "-h", 3)) {
- if(++i < argc) host = argv[i];
- }
- else if(!strncmp(argv[i], "-p", 3)) {
- if(++i < argc) port = (unsigned short)atoi(argv[i]);
- }
- else if(!strncmp(argv[i], "-n", 3)) {
- if(++i < argc) strncpy(nick, argv[i], sizeof nick);
- }
- else if(!strncmp(argv[i], "-k", 3)) {
- if(++i < argc) password = argv[i];
- }
- else if(!strncmp(argv[i], "-v", 3))
- eprint("sic-"VERSION", (C)opyright MMVI Anselm R. Garbe\n");
- else
- eprint("usage: sic [-h host] [-p port] [-n nick] [-k keyword] [-v]\n");
+ strlcpy(nick, user ? user : "unknown", sizeof nick);
+ ARGBEGIN {
+ case 'h':
+ host = EARGF(usage());
+ break;
+ case 'p':
+ port = EARGF(usage());
+ break;
+ case 'n':
+ strlcpy(nick, EARGF(usage()), sizeof nick);
+ break;
+ case 'k':
+ password = EARGF(usage());
+ break;
+ case 'v':
+ eprint("sic-"VERSION", © 2005-2014 Kris Maglione, Anselm R. Garbe, Nico Golde\n");
+ break;
+ default:
+ usage();
+ } ARGEND;
/* init */
- if((srv = socket(AF_INET, SOCK_STREAM, 0)) < 0)
- eprint("sic: cannot connect host '%s'\n", host);
- if(NULL == (hp = gethostbyname(host)))
- eprint("sic: cannot resolve hostname '%s'\n", host);
- addr.sin_family = AF_INET;
- addr.sin_port = htons(port);
- memcpy(&addr.sin_addr, hp->h_addr, hp->h_length);
- if(connect(srv, (struct sockaddr *) &addr, sizeof(struct sockaddr_in))) {
- close(srv);
- eprint("sic: cannot connect host '%s'\n", host);
- }
+ srv = fdopen(dial(host, port), "r+");
+ if (!srv)
+ eprint("fdopen:");
/* login */
if(password)
- snprintf(bufout, sizeof bufout,
- "PASS %s\r\nNICK %s\r\nUSER %s localhost %s :%s\r\n",
- password, nick, nick, host, nick);
- else
- snprintf(bufout, sizeof bufout, "NICK %s\r\nUSER %s localhost %s :%s\r\n",
- nick, nick, host, nick);
- write(srv, bufout, strlen(bufout));
- snprintf(ping, sizeof ping, "PING %s\r\n", host);
- channel[0] = 0;
- setbuf(stdout, NULL); /* unbuffered stdout */
-
+ sout("PASS %s", password);
+ sout("NICK %s", nick);
+ sout("USER %s localhost %s :%s", nick, host, nick);
+ fflush(srv);
+ setbuf(stdout, NULL);
+ setbuf(srv, NULL);
+ setbuf(stdin, NULL);
+#ifdef __OpenBSD__
+ if (pledge("stdio", NULL) == -1)
+ eprint("error: pledge:");
+#endif
for(;;) { /* main loop */
FD_ZERO(&rd);
FD_SET(0, &rd);
- FD_SET(srv, &rd);
+ FD_SET(fileno(srv), &rd);
tv.tv_sec = 120;
tv.tv_usec = 0;
- i = select(srv + 1, &rd, 0, 0, &tv);
- if(i < 0) {
+ n = select(fileno(srv) + 1, &rd, 0, 0, &tv);
+ if(n < 0) {
if(errno == EINTR)
continue;
- eprint("sic: error on select()");
+ eprint("sic: error on select():");
}
- else if(i == 0) {
- if(time(NULL) - trespond >= PINGTIMEOUT)
- eprint("sic shutting down: parse timeout");
- write(srv, ping, strlen(ping));
+ else if(n == 0) {
+ if(time(NULL) - trespond >= 300)
+ eprint("sic shutting down: parse timeout\n");
+ sout("PING %s", host);
continue;
}
- if(FD_ISSET(srv, &rd)) {
- if(getline(srv, sizeof bufin, bufin) == -1)
- eprint("sic: remote host closed connection");
+ if(FD_ISSET(fileno(srv), &rd)) {
+ if(fgets(bufin, sizeof bufin, srv) == NULL)
+ eprint("sic: remote host closed connection\n");
parsesrv(bufin);
trespond = time(NULL);
}
if(FD_ISSET(0, &rd)) {
- if(getline(0, sizeof bufin, bufin) == -1)
- eprint("sic: broken pipe");
+ if(fgets(bufin, sizeof bufin, stdin) == NULL)
+ eprint("sic: broken pipe\n");
parsein(bufin);
}
}
projects / sic.git / blobdiff