iiiypuk/sic
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some more simplifications

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This commit is contained in:
Anselm R. Garbe 2007-02-08 14:51:04 +01:00
parent 5569a14e8e
commit cb68ce9e2c
1 changed files with 20 additions and 58 deletions
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78
sic.c
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@ -16,8 +16,6 @@
#define PINGTIMEOUT 300
#define MAXMSG 4096
enum { Tnick, Tuser, Tcmd, Tchan, Targ, Ttext, Tlast };
static char *server = "irc.oftc.net";
static unsigned short port = 6667;
static char *nick = NULL;
@ -95,82 +93,46 @@ parsein(char *msg) {
write(srv, bufout, strlen(bufout));
}
static unsigned int
tokenize(char **result, unsigned int reslen, char *str, char delim) {
char *p, *n;
unsigned int i = 0;
if(!str)
return 0;
for(n = str; *n == delim; n++);
p = n;
for(i = 0; *n != 0;) {
if(i == reslen)
return i;
if(*n == delim) {
*n = 0;
if(strlen(p))
result[i++] = p;
p = ++n;
} else
n++;
}
if((i < reslen) && (p < n) && strlen(p))
result[i++] = p;
return i; /* number of tokens */
}
static void
parsesrv(char *msg) {
char *argv[Tlast], *cmd, *p;
int i;
char *chan, *cmd, *p, *txt, *usr;
if(!msg || !(*msg))
return;
for(i = 0; i < Tlast; i++)
argv[i] = NULL;
/* <bufout> ::= [':' <prefix> <SPACE> ] <command> <params> <crlf>
* <prefix> ::= <servername> | <nick> [ '!' <user> ] [ '@' <server> ]
* <command> ::= <letter> { <letter> } | <number> <number> <number>
* <SPACE> ::= ' ' { ' ' }
* <params> ::= <SPACE> [ ':' <trailing> | <middle> <params> ]
* <middle> ::= <Any *non-empty* sequence of octets not including SPACE
* or NUL or CR or LF, the first of which may not be ':'>
* <trailing> ::= <Any, possibly *empty*, sequence of octets not including NUL or CR or LF>
* <crlf> ::= CR LF
*/
if(msg[0] == ':') { /* check prefix */
if(!(p = strchr(msg, ' ')))
return;
*p = 0;
for(++p; *p == ' '; p++);
cmd = p;
argv[Tnick] = &msg[1];
if((p = strchr(msg, '!'))) {
usr = &msg[1];
if((p = strchr(msg, '!')))
*p = 0;
argv[Tuser] = ++p;
}
} else
cmd = msg;
/* remove CRLFs */
for(p = cmd; p && *p != 0; p++)
if(*p == '\r' || *p == '\n')
*p = 0;
if((p = strchr(cmd, ':'))) {
*p = 0;
argv[Ttext] = ++p;
}
if(!strncmp("PRIVMSG", cmd, 7) || !strncmp("PING", cmd, 4)) {
if(tokenize(&argv[Tcmd], Tlast - Tcmd, cmd, ' ') != Tlast - Tcmd)
if(!strncmp("PONG", cmd, 4))
return;
if(!strncmp("PRIVMSG", argv[Tcmd], 8)) {
snprintf(bufout, sizeof bufout, "<%s> %s",
argv[Tnick], argv[Ttext] ? argv[Ttext] : "");
pout(argv[Tchan], bufout);
if(!strncmp("PRIVMSG", cmd, 7) || !strncmp("PING", cmd, 4)) {
if(!(p = strchr(cmd, ' ')))
return;
*p = 0;
chan = ++p;
for(; *p && *p != ' '; p++);
*p = 0;
if(!(p = strchr(++p, ':')))
return;
*p = 0;
txt = ++p;
if(!strncmp("PRIVMSG", cmd, 8) && chan && txt) {
snprintf(bufout, sizeof bufout, "<%s> %s", usr, txt);
pout(chan, bufout);
}
else if(!strncmp("PING", argv[Tcmd], 5)) {
snprintf(bufout, sizeof bufout, "PONG %s\r\n", argv[Ttext]);
else if(!strncmp("PING", cmd, 5) && txt) {
snprintf(bufout, sizeof bufout, "PONG %s\r\n", txt);
write(srv, bufout, strlen(bufout));
}
return;