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irc.c
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irc.c
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/*
quIRC - simple terminal-based IRC client
Copyright (C) 2010 Edward Cree
See quirc.c for license information
irc: networking functions
*/
#include "irc.h"
int irc_connect(char *server, char *portno, fd_set *master, int *fdmax)
{
int serverhandle;
struct addrinfo hints, *servinfo;
// Look up server
memset(&hints, 0, sizeof(hints));
hints.ai_family=AF_INET;
hints.ai_socktype = SOCK_STREAM; // TCP stream sockets
int rv;
if((rv = getaddrinfo(server, portno, &hints, &servinfo)) != 0)
{
char *err=(char *)gai_strerror(rv);
w_buf_print(0, c_err, err, "getaddrinfo: ");
return(0); // 0 indicates failure as rv is new serverhandle value
}
char sip[INET_ADDRSTRLEN];
struct addrinfo *p;
// loop through all the results and connect to the first we can
for(p = servinfo; p != NULL; p = p->ai_next)
{
inet_ntop(p->ai_family, &(((struct sockaddr_in*)p->ai_addr)->sin_addr), sip, sizeof(sip));
if((serverhandle = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == -1)
{
w_buf_print(0, c_err, strerror(errno), "socket: ");
continue;
}
if(fcntl(serverhandle, F_SETFD, O_NONBLOCK) == -1)
{
close(serverhandle);
w_buf_print(0, c_err, strerror(errno), "fcntl: ");
continue;
}
if(connect(serverhandle, p->ai_addr, p->ai_addrlen) == -1)
{
if(errno!=EINPROGRESS)
{
close(serverhandle);
w_buf_print(0, c_err, strerror(errno), "connect: ");
continue;
}
}
break;
}
if (p == NULL)
{
w_buf_print(0, c_err, "failed to connect to server", "/connect: ");
return(0); // 0 indicates failure as rv is new serverhandle value
}
freeaddrinfo(servinfo); // don't need this any more
FD_SET(serverhandle, master);
*fdmax=max(*fdmax, serverhandle);
return(serverhandle);
}
int irc_conn_rest(int b, char *nick, char *username, char *fullname)
{
bufs[b].live=true; // mark it as live
if(bufs[b].autoent && bufs[b].autoent->nick)
nick=bufs[b].autoent->nick;
// TODO: Optionally send a PASS message before the NICK/USER
char nickmsg[6+strlen(nick)];
sprintf(nickmsg, "NICK %s", nick); // NICK <nickname>
irc_tx(bufs[b].handle, nickmsg);
struct utsname arch;
uname(&arch);
char usermsg[16+strlen(username)+strlen(arch.nodename)+strlen(fullname)];
sprintf(usermsg, "USER %s 0 %s :%s", username, arch.nodename, fullname); // USER <user> <mode> <unused> <realname>
irc_tx(bufs[b].handle, usermsg);
return(0);
}
int autoconnect(fd_set *master, int *fdmax, servlist *serv)
{
char cstr[36+strlen(serv->name)+strlen(serv->portno)];
sprintf(cstr, "quIRC - connecting to %s", serv->name);
settitle(cstr);
sprintf(cstr, "Connecting to %s on port %s...", serv->name, serv->portno);
setcolour(c_status);
printf(CLA "\n");
printf(LOCATE, height-2, 1);
printf("%s" CLR "\n", cstr);
resetcol();
printf(CLA "\n");
int serverhandle=irc_connect(serv->name, serv->portno, master, fdmax);
if(serverhandle)
{
bufs=(buffer *)realloc(bufs, ++nbufs*sizeof(buffer));
cbuf=nbufs-1;
init_buffer(cbuf, SERVER, serv->name, buflines);
bufs[cbuf].handle=serverhandle;
bufs[cbuf].nick=strdup(serv->nick);
bufs[cbuf].autoent=serv;
if(serv) bufs[cbuf].ilist=serv->igns;
bufs[cbuf].server=cbuf;
add_to_buffer(cbuf, c_status, cstr);
sprintf(cstr, "quIRC - connecting to %s", serv->name);
settitle(cstr);
}
return(serverhandle);
}
int irc_tx(int fd, char * packet)
{
//printf(">> %s\n\n", packet); // for debugging purposes
char pq[512];
low_quote(packet, pq);
unsigned long l=min(strlen(pq), 511);
unsigned long p=0;
while(p<l)
{
signed long j=send(fd, pq+p, l-p, 0);
if(j<1)
{
if(errno==EINTR)
continue;
return(p); // Something went wrong with send()!
}
p+=j;
}
send(fd, "\n", 1, 0);
return(l); // Return the number of bytes sent
}
int irc_rx(int fd, char ** data)
{
char buf[512];
int l=0;
bool cr=false;
while(!cr)
{
long bytes=recv(fd, buf+l, 1, MSG_WAITALL);
if(bytes>0)
{
char c=buf[l];
if((strchr("\n\r", c)!=NULL) || (l>510))
{
cr=true;
buf[l]=0;
}
l++;
}
else if(bytes<0)
{
if(errno==EINTR)
continue;
int b;
for(b=0;b<nbufs;b++)
{
if((fd==bufs[b].handle) && (bufs[b].type==SERVER))
{
w_buf_print(b, c_err, strerror(errno), "irc_rx: recv:");
bufs[b].live=false;
}
}
cr=true; // just crash out with a partial message
buf[l]=0;
}
}
*data=strdup(buf);
if(!*data)
return(1);
return(0);
}
message irc_breakdown(char *packet)
{
char *pp=packet;
message rv;
if(*packet==':')
{
rv.prefix=strtok(packet, " ");
rv.cmd=strtok(NULL, " ");
packet=strtok(NULL, "");
}
else
{
rv.prefix=NULL;
rv.cmd=strtok(packet, " ");
packet=strtok(NULL, "");
}
if(rv.prefix) rv.prefix=low_dequote(rv.prefix);
if(rv.cmd) rv.cmd=low_dequote(rv.cmd);
if(!(rv.cmd&&packet))
{
rv.nargs=0;
free(pp);
return(rv);
}
int arg=0;
char *p;
while(*packet)
{
p=packet;
if((*p==':')||(arg==15))
{
p++;
rv.args[arg]=low_dequote(p);
rv.nargs=15;
break;
}
while(*p&&(*p!=' '))
{
p++;
}
rv.args[arg++]=low_dequote(packet);
packet=p+(*p?1:0);
*p=0;
}
rv.nargs=arg;
free(pp);
return(rv);
}
void message_free(message pkt)
{
if(pkt.prefix) free(pkt.prefix);
if(pkt.cmd) free(pkt.cmd);
int arg;
for(arg=0;arg<pkt.nargs;arg++)
if(pkt.args[arg]) free(pkt.args[arg]);
}
void low_quote(char *from, char to[512])
{
int o=0;
while((*from) && (o<510))
{
char c=*from++;
switch(c)
{
case '\n':
to[o++]=MQUOTE;
to[o++]='n';
break;
case '\r':
to[o++]=MQUOTE;
to[o++]='r';
break;
case MQUOTE:
to[o++]=MQUOTE;
to[o++]=MQUOTE;
break;
case '\\':
if(*from=='0') // "\\0", is an encoded '\0'
{
to[o++]=MQUOTE; // because this will produce ^P 0, the proper representation
}
else
{
to[o++]=c;
}
break;
case 0: // can't happen right now
to[o++]=MQUOTE;
to[o++]='0';
break;
default:
to[o++]=c;
break;
}
}
to[o]=0;
}
char * low_dequote(char *buf)
{
char *rv=(char *)malloc(512);
if(!rv) return(NULL);
char *p=buf;
int o=0;
while((*p) && (o<510))
{
if(*p==MQUOTE)
{
char c=*++p;
switch(c)
{
case '0':
rv[o++]='\\';
rv[o]='0'; // We will have to defer '\0' handling as we can't stick '\0's in char *s (NUL terminated strings)
break;
case 'n':
rv[o]='\n';
break;
case 'r':
rv[o]='\r';
break;
case MQUOTE: // MQUOTE MQUOTE => MQUOTE, so fall through
default:
rv[o]=c;
break;
}
}
else
{
rv[o]=*p;
}
p++;o++;
}
rv[o]=0;
return(rv);
}
char irc_to_upper(char c, cmap casemapping)
{
// 97 to 126 -> 65 to 94 (CASEMAPPING=rfc1459; non-strict)
// 97 to 125 -> 65 to 93 (CASEMAPPING=strict-rfc1459)
// 97 to 122 -> 65 to 90 (CASEMAPPING=ascii)
switch(casemapping)
{
case ASCII:
if((97<=c)&&(c<=122))
return(c-32);
break;
case STRICT_RFC1459:
if((97<=c)&&(c<=125))
return(c-32);
break;
case RFC1459: // fallthrough
default:
if((97<=c)&&(c<=126))
return(c-32);
break;
}
return(c);
}
char irc_to_lower(char c, cmap casemapping)
{
// 65 to 94 -> 97 to 126 (CASEMAPPING=rfc1459; non-strict)
// 65 to 93 -> 97 to 125 (CASEMAPPING=strict-rfc1459)
// 65 to 90 -> 97 to 122 (CASEMAPPING=ascii)
switch(casemapping)
{
case ASCII:
if((65<=c)&&(c<=90))
return(c+32);
break;
case STRICT_RFC1459:
if((65<=c)&&(c<=93))
return(c+32);
break;
case RFC1459: // fallthrough
default:
if((65<=c)&&(c<=94))
return(c+32);
break;
}
return(c);
}
int irc_strcasecmp(char *c1, char *c2, cmap casemapping)
{
char t1,t2;
while(*c1||*c2)
{
t1=irc_to_upper(*c1, casemapping);
t2=irc_to_upper(*c2, casemapping);
if(t2!=t1)
return(t2>t1?-1:1);
c1++;c2++;
}
return(0);
}
int irc_strncasecmp(char *c1, char *c2, int n, cmap casemapping)
{
int i=0;
char t1,t2;
while((i<n)&&(c1[i]||c2[i]))
{
t1=irc_to_upper(c1[i], casemapping);
t2=irc_to_upper(c2[i], casemapping);
if(t2!=t1)
return(t2>t1?-1:1);
i++;
}
return(0);
}
int irc_numeric(message pkt, int b)
{
int num=0;
int b2;
sscanf(pkt.cmd, "%d", &num);
// arg[0] is invariably dest, with numeric replies; TODO check dest is us (not vital)
int arg;
switch(num)
{
case RPL_X_ISUPPORT:
// 005 dest {[-]parameter|parameter=value}+ :are supported by this server
for(arg=1;arg<pkt.nargs-1;arg++) // last argument is always the :postfix descriptive text
{
char *rest=pkt.args[arg];
bool min=false;
char *value=NULL;
if(*rest=='-')
{
min=true;
rest++;
}
else
{
char *eq=strchr(rest, '=');
if(eq)
{
value=eq+1;
*eq=0;
}
}
if(strcmp(rest, "CASEMAPPING")==0)
{
if(value)
{
if(strcmp(value, "ascii")==0)
{
bufs[b].casemapping=ASCII;
}
else if(strcmp(value, "strict-rfc1459")==0)
{
bufs[b].casemapping=STRICT_RFC1459;
}
else
{
bufs[b].casemapping=RFC1459;
}
}
else
{
bufs[b].casemapping=RFC1459;
}
}
else
{
char isup[strlen(rest)+(value?strlen(value):0)+3];
sprintf(isup, "%s%s%s%s", min?"-":"", rest, value?"=":"", value?value:"");
w_buf_print(b, c_unn, isup, "RPL_ISUPPORT: ");
}
}
break;
case RPL_NAMREPLY:
// 353 dest {=|/|\*|@} #chan :([@|\+]nick)+
if(pkt.nargs<3)
{
w_buf_print(b, c_err, "Not enough arguments", "RPL_NAMREPLY: ");
break;
}
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(pkt.args[2], bufs[b2].bname, bufs[b].casemapping)==0))
{
if(!bufs[b2].namreply)
{
bufs[b2].namreply=true;
n_free(bufs[b2].nlist);
bufs[b2].nlist=NULL;
}
int arg;
for(arg=3;arg<pkt.nargs;arg++)
{
char *nn;
while((nn=strtok(NULL, " ")))
{
if((*nn=='@')||(*nn=='+'))
nn++;
n_add(&bufs[b2].nlist, nn);
}
}
}
}
break;
case RPL_ENDOFNAMES:
// 366 dest #chan :End of /NAMES list
if(pkt.nargs<1)
{
w_buf_print(b, c_err, "Not enough arguments", "RPL_ENDOFNAMES: ");
break;
}
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(pkt.args[1], bufs[b2].bname, bufs[b].casemapping)==0))
{
bufs[b2].namreply=false;
char lmsg[32+strlen(pkt.args[1])];
sprintf(lmsg, "NAMES list received for %s", pkt.args[1]);
w_buf_print(b2, c_status, lmsg, "");
}
}
break;
case RPL_ENDOFMOTD: // 376 dest :End of MOTD command
case RPL_MOTDSTART: // 375 dest :- <server> Message of the day -
case RPL_MOTD: // 372 dest :- <text>
if(pkt.nargs<2)
{
w_buf_print(b, c_err, "Not enough arguments", num==RPL_MOTD?"RPL_MOTD: ":num==RPL_MOTDSTART?"RPL_MOTDSTART: ":num==RPL_ENDOFMOTD?"RPL_ENDOFMOTD: ":"RPL_MOTD???: ");
break;
}
w_buf_print(b, c_notice[1], pkt.args[1], "");
break;
case ERR_NOMOTD: // 422 <dest> :MOTD File is missing
if(pkt.nargs<2)
{
w_buf_print(b, c_err, "Not enough arguments", "ERR_NOMOTD: ");
break;
}
w_buf_print(b, c_notice[1], pkt.args[1], "");
break;
case RPL_TOPIC: // 332 dest <channel> :<topic>
if(pkt.nargs<3)
{
w_buf_print(b, c_err, "Not enough arguments", "RPL_TOPIC: ");
break;
}
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(pkt.args[1], bufs[b2].bname, bufs[b].casemapping)==0))
{
char tmsg[32+strlen(pkt.args[1])];
sprintf(tmsg, "Topic for %s is ", pkt.args[1]);
w_buf_print(b2, c_notice[1], pkt.args[2], tmsg);
if(bufs[b2].topic) free(bufs[b2].topic);
bufs[b2].topic=strdup(pkt.args[2]);
}
}
break;
case RPL_NOTOPIC: // 331 dest <channel> :No topic is set
if(pkt.nargs<2)
{
w_buf_print(b, c_err, "Not enough arguments", "RPL_NOTOPIC: ");
break;
}
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(pkt.args[1], bufs[b2].bname, bufs[b].casemapping)==0))
{
char tmsg[32+strlen(pkt.args[1])];
sprintf(tmsg, "No topic is set for %s", pkt.args[1]);
w_buf_print(b2, c_notice[1], tmsg, "");
if(bufs[b2].topic) free(bufs[b2].topic);
}
}
break;
case RPL_X_TOPICWASSET: // 331 dest <channel> <nick> <time>
if(pkt.nargs<3)
{
w_buf_print(b, c_err, "Not enough arguments", "RPL_X_TOPICWASSET: ");
break;
}
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(pkt.args[1], bufs[b2].bname, bufs[b].casemapping)==0))
{
time_t when;
sscanf(pkt.args[3], "%u", (unsigned int *)&when);
char ts[256];
struct tm *tm = gmtime(&when);
size_t tslen = strftime(ts, sizeof(ts), "%H:%M:%S GMT on %a, %d %b %Y", tm); // TODO options controlling date format (eg. ISO 8601)
char tmsg[32+strlen(pkt.args[2])+tslen];
sprintf(tmsg, "Topic was set by %s at %s", pkt.args[2], ts);
w_buf_print(b2, c_status, tmsg, "");
}
}
break;
case RPL_LUSERCLIENT: // 251 <dest> :There are <integer> users and <integer> invisible on <integer> servers"
case RPL_LUSERME: // 255 <dest> ":I have <integer> clients and <integer> servers
if(pkt.nargs<2)
{
w_buf_print(b, c_err, "Not enough arguments", num==RPL_LUSERCLIENT?"RPL_LUSERCLIENT: ":num==RPL_LUSERME?"RPL_LUSERME: ":"RPL_LUSER???: ");
break;
}
w_buf_print(b, c_status, pkt.args[1], ": ");
break;
case RPL_LUSEROP: // 252 <dest> <integer> :operator(s) online
case RPL_LUSERUNKNOWN: // 253 <dest> <integer> :unknown connection(s)
case RPL_LUSERCHANNELS: // 254 <dest> <integer> :channels formed
if(pkt.nargs<3)
{
w_buf_print(b, c_err, "Not enough arguments", num==RPL_LUSEROP?"RPL_LUSEROP: ":num==RPL_LUSERUNKNOWN?"RPL_LUSERUNKNOWN: ":num==RPL_LUSERCHANNELS?"RPL_LUSERCHANNELS":"RPL_LUSER???: ");
break;
}
else
{
char lmsg[2+strlen(pkt.args[1])+strlen(pkt.args[2])];
sprintf(lmsg, "%s %s", pkt.args[1], pkt.args[2]);
w_buf_print(b, c_status, lmsg, ": ");
}
break;
case RPL_X_LOCALUSERS: // 265 <dest> :Current Local Users: <integer>\tMax: <integer>
case RPL_X_GLOBALUSERS: // 266 <dest> :Current Global Users: <integer>\tMax: <integer>
if(pkt.nargs<2)
{
w_buf_print(b, c_err, "Not enough arguments", num==RPL_X_LOCALUSERS?"RPL_X_LOCALUSERS: ":num==RPL_X_GLOBALUSERS?"RPL_X_GLOBALUSERS: ":"RPL_???USERS: ");
break;
}
w_buf_print(b, c_status, pkt.args[1], ": ");
break;
default:
e_buf_print(b, c_unn, pkt, "Unknown numeric ");
break;
}
return(num);
}
int rx_ping(message pkt, int fd)
{
// PING <sender>
if(pkt.nargs<1)
{
w_buf_print(b, c_err, "Not enough arguments", "PING: ");
return(0);
}
char pong[8+strlen(username)+strlen(pkt.args[0])];
sprintf(pong, "PONG %s %s", username, pkt.args[0]); // PONG <user> <sender>
return(irc_tx(fd, pong));
}
int rx_mode(servlist * serv, int b)
{
//
int fd=bufs[b].handle;
if(autojoin && serv->chans && !serv->join)
{
chanlist * curr=serv->chans;
while(curr)
{
char joinmsg[8+strlen(curr->name)];
sprintf(joinmsg, "JOIN %s %s", curr->name, curr->key?curr->key:"");
irc_tx(fd, joinmsg);
char jmsg[16+strlen(curr->name)];
sprintf(jmsg, "auto-Joining %s", curr->name);
w_buf_print(b, c_join[0], jmsg, "");
curr=curr->next;
}
serv->join=true;
}
return(0);
}
int rx_kill(int b, fd_set *master)
{
int fd=bufs[b].handle;
char *dest=strtok(NULL, " \t"); // user to be killed
if(!isalpha(*dest))
dest++;
char *rest=strtok(NULL, "");
if(*rest==':')
rest++;
if(strcmp(dest, bufs[b].nick)==0) // if it's us, we disconnect from the server
{
close(fd);
FD_CLR(fd, master);
int b2;
for(b2=1;b2<nbufs;b2++)
{
if((bufs[b2].server==b) || (bufs[b2].server==0))
{
w_buf_print(b2, c_quit[0], rest, "KILLed: ");
bufs[b2].live=false;
}
}
redraw_buffer();
}
else // if it's not us, generate quit messages into the relevant channel tabs
{
int b2;
for(b2=1;b2<nbufs;b2++)
{
if((bufs[b2].server==b) || (bufs[b2].server==0))
{
if(n_cull(&bufs[b2].nlist, dest))
{
char kmsg[24+strlen(dest)+strlen(bufs[b].bname)];
sprintf(kmsg, "=%s= has left %s (killed)", dest, bufs[b].bname);
w_buf_print(b2, c_quit[1], kmsg, "");
}
}
}
}
return(0);
}
int rx_kick(int b)
{
char *chn=strtok(NULL, " \t"); // channel to kick from
char *dest=strtok(NULL, " \t"); // user to be kicked
if(!isalpha(*dest))
dest++;
char *rest=strtok(NULL, ""); // reason
if(*rest==':')
rest++;
if(irc_strcasecmp(dest, bufs[b].nick, bufs[b].casemapping)==0) // if it's us, generate a message and de-live the channel
{
int b2;
for(b2=1;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(chn, bufs[b2].bname, bufs[b].casemapping)==0))
{
w_buf_print(b2, c_quit[0], rest, "Kicked: ");
bufs[b2].live=false;
}
}
redraw_buffer();
}
else // if it's not us, just generate kick message
{
int b2;
for(b2=1;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(chn, bufs[b2].bname, bufs[b].casemapping)==0))
{
if(n_cull(&bufs[b2].nlist, dest))
{
char kmsg[32+strlen(dest)+strlen(rest)];
sprintf(kmsg, "=%s= was kicked. Reason: %s", dest, rest);
w_buf_print(b2, c_quit[1], kmsg, "");
}
}
}
}
return(0);
}
int rx_error(int b, fd_set *master)
{
// assume it's fatal
int fd=bufs[b].handle;
close(fd);
FD_CLR(fd, master);
char *rest=strtok(NULL, "");
if(*rest==':')
rest++;
int b2;
for(b2=1;b2<nbufs;b2++)
{
if((bufs[b2].server==b) || (bufs[b2].server==0))
{
w_buf_print(b2, c_quit[0], rest, "Disconnected: ERROR ");
bufs[b2].live=false;
}
}
return(redraw_buffer());
}
int rx_privmsg(int b, char *packet, char *pdata)
{
char *dest=strtok(NULL, " \t");
char *msg=dest+strlen(dest)+2; // prefixed with :
char *src=packet+1;
char *host=strchr(src, '@');
if(host)
host++;
char *bang=strchr(src, '!');
if(bang)
*bang++=0;
if(!isalpha(*src))
src++;
char nm[strlen(src)+strlen(bang)+strlen(host)+3];
char *from=strdup(src);
crush(&from, maxnlen);
int b2;
bool match=false;
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(dest, bufs[b2].bname, bufs[b].casemapping)==0))
{
match=true;
sprintf(nm, "%s@%s", src, host);
if(i_match(bufs[b].ilist, nm, false, bufs[b].casemapping)||i_match(bufs[0].ilist, nm, false, bufs[b].casemapping))
break;
if(i_match(bufs[b2].ilist, nm, false, bufs[b].casemapping))
continue;
sprintf(nm, "%s@%s", bang, host);
if(i_match(bufs[b].ilist, nm, false, bufs[b].casemapping)||i_match(bufs[0].ilist, nm, false, bufs[b].casemapping))
break;
if(i_match(bufs[b2].ilist, nm, false, bufs[b].casemapping))
continue;
sprintf(nm, "%s", src);
if(i_match(bufs[b].ilist, nm, false, bufs[b].casemapping)||i_match(bufs[0].ilist, nm, false, bufs[b].casemapping))
break;
if(i_match(bufs[b2].ilist, nm, false, bufs[b].casemapping))
continue;
if(*msg==1) // CTCP
{
ctcp(msg, from, src, b2);
}
else
{
char tag[maxnlen+4]; // TODO this tag-making bit ought to be refactored really
memset(tag, ' ', maxnlen+3);
sprintf(tag+maxnlen-strlen(from), "<%s> ", from);
w_buf_print(b2, c_msg[1], msg, tag);
}
}
}
if(!match)
{
sprintf(nm, "%s@%s", src, host);
if(i_match(bufs[b].ilist, nm, true, bufs[b].casemapping)||i_match(bufs[0].ilist, nm, true, bufs[b].casemapping))
return(0);
sprintf(nm, "%s@%s", bang, host);
if(i_match(bufs[b].ilist, nm, true, bufs[b].casemapping)||i_match(bufs[0].ilist, nm, true, bufs[b].casemapping))
return(0);
sprintf(nm, "%s", src);
if(i_match(bufs[b].ilist, nm, true, bufs[b].casemapping)||i_match(bufs[0].ilist, nm, true, bufs[b].casemapping))
return(0);
if(irc_strcasecmp(dest, bufs[b].nick, bufs[b].casemapping)==0)
{
if(*msg==1) // CTCP
{
ctcp(msg, from, src, b);
}
else
{
char tag[maxnlen+9];
memset(tag, ' ', maxnlen+8);
sprintf(tag+maxnlen-strlen(from), "(from %s) ", from);
w_buf_print(b, c_msg[1], msg, tag);
}
}
else
{
w_buf_print(b, c_err, pdata, "?? ");
}
}
free(from);
return(0);
}
int rx_notice(int b, char *packet)
{
char *dest=strtok(NULL, " ");
char *msg=dest+strlen(dest)+2; // prefixed with :
char *src=packet+1;
char *host=strchr(src, '@');
if(host)
host++;
else
host="";
char *bang=strchr(src, '!');
if(bang)
*bang++=0;
else
bang="";
if(!isalpha(*src))
src++;
char nm[strlen(src)+strlen(bang)+strlen(host)+3];
sprintf(nm, "%s@%s", src, host);
if(i_match(bufs[b].ilist, nm, true, bufs[b].casemapping)||i_match(bufs[0].ilist, nm, true, bufs[b].casemapping))
return(0);
sprintf(nm, "%s@%s", bang, host);
if(i_match(bufs[b].ilist, nm, true, bufs[b].casemapping)||i_match(bufs[0].ilist, nm, true, bufs[b].casemapping))
return(0);
sprintf(nm, "%s", src);
if(i_match(bufs[b].ilist, nm, true, bufs[b].casemapping)||i_match(bufs[0].ilist, nm, true, bufs[b].casemapping))
return(0);
char *from=strdup(src);
scrush(&from, maxnlen);
char tag[maxnlen+9];
memset(tag, ' ', maxnlen+8);
sprintf(tag+maxnlen-strlen(from), "(from %s) ", from);
free(from);
return(w_buf_print(b, c_notice[1], msg, tag));
}
int rx_topic(int b, char *packet)
{
// <dest> :<topic>
char *dest=strtok(NULL, " ");
char *msg=dest+strlen(dest)+2; // prefixed with :
char *src=packet+1;
char *bang=strchr(src, '!');
if(bang)
*bang=0;
char *from=strdup(src);
scrush(&from, maxnlen);
char tag[maxnlen+20];
sprintf(tag, "%s set the Topic to ", from);
free(from);
int b2;
bool match=false;
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(dest, bufs[b2].bname, bufs[b].casemapping)==0))
{
w_buf_print(b2, c_notice[1], msg, tag);
match=true;
if(bufs[b2].topic) free(bufs[b2].topic);
bufs[b2].topic=strdup(msg);
}
}
return(match?0:1);
}
int rx_join(int b, char *packet, char *pdata)
{
char *dest=strtok(NULL, " \t");
char *src=packet+1;
char *bang=strchr(src, '!');
if(bang)
*bang=0;
if(!isalpha(*src))
src++;
if(strcmp(src, bufs[b].nick)==0)
{
char dstr[20+strlen(src)+strlen(dest+1)];
sprintf(dstr, "You (%s) have joined %s", src, dest+1);
char cstr[16+strlen(src)+strlen(dest+1)];
sprintf(cstr, "quIRC - %s on %s", src, dest+1);
settitle(cstr);
int b2;
for(b2=1;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(dest+1, bufs[b2].bname, bufs[b].casemapping)==0))
{
cbuf=b2;
break;
}
}
if(b2>=nbufs)
{
bufs=(buffer *)realloc(bufs, ++nbufs*sizeof(buffer));
init_buffer(nbufs-1, CHANNEL, dest+1, buflines);
cbuf=nbufs-1;
bufs[cbuf].server=bufs[b].server;
}
w_buf_print(cbuf, c_join[0], dstr, "");
bufs[cbuf].handle=bufs[bufs[cbuf].server].handle;
bufs[cbuf].live=true;
}
else
{
int b2;
bool match=false;
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(dest+1, bufs[b2].bname, bufs[b].casemapping)==0))
{
match=true;
char dstr[16+strlen(src)+strlen(dest+1)];
sprintf(dstr, "=%s= has joined %s", src, dest+1);
w_buf_print(b2, c_join[1], dstr, "");
n_add(&bufs[b2].nlist, src);
}
}
if(!match)
{
w_buf_print(b, c_err, pdata, "?? ");
}
}
return(0);
}
int rx_part(int b, char *packet, char *pdata)
{
char *dest=strtok(NULL, " \t");
char *src=packet+1;
char *bang=strchr(src, '!');
if(bang)
*bang=0;
if(!isalpha(*src))
src++;
if(strcmp(src, bufs[b].nick)==0)
{
int b2;
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(dest, bufs[b2].bname, bufs[b].casemapping)==0))
{
if(b2==cbuf)
{
cbuf=b;
char cstr[24+strlen(bufs[b].bname)];
sprintf(cstr, "quIRC - connected to %s", bufs[b].bname);
settitle(cstr);
}
free_buffer(b2);
}
}
}
else
{
int b2;
bool match=false;
for(b2=0;b2<nbufs;b2++)
{
if((bufs[b2].server==b) && (bufs[b2].type==CHANNEL) && (irc_strcasecmp(dest, bufs[b2].bname, bufs[b].casemapping)==0))
{
match=true;
char dstr[16+strlen(src)+strlen(dest)];