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#include <sys/time.h>
#include <string.h>
#include <stdlib.h>
#include <sys/select.h>
#include <stdio.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/socket.h>
#include <arpa/inet.h>
//#define DEBUG //comment me out to disable.
#define CHUNK 16
static int serverConnect(char *serv,char *port) {
struct addrinfo hints, *servinfo, *p;
int rv;
memset(&hints,0,sizeof hints);
hints.ai_family=AF_INET;
hints.ai_socktype=SOCK_STREAM;
int fd=0;
fd=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
if(fd < 0) {
perror("socket");
return fd;
}
if((rv=getaddrinfo(serv,port,&hints,&servinfo)) != 0) {
fprintf(stderr,"error resolving '%s'.\n",serv);
return 0;
}
for(p=servinfo;p;p=p->ai_next) {
if (connect(fd,p->ai_addr, p->ai_addrlen) < 0) {
perror("connect");
continue;
}
break;
}
if(!p) {
return 0;
}
return fd;
}
static int haschar(char *s,char c) {
int i;
for(i=0;s[i];i++) {
if(s[i]==c) return 1;
}
return 0;
}
int runit(int fd,void (*line_handler)(),void (*extra_handler)()) {
FILE *fp;
fd_set master;
fd_set readfs;
struct timeval timeout;
int fdmax;
int n;
int s;
int i;
int good=0;
char *backlog=malloc(CHUNK+1);
if(!backlog) return 252;
char *t;
char *line=0;
int blsize=CHUNK;
int bllen=0;
char buffer[CHUNK];//THIS IS *NOT* NULL TERMINATED.
FD_ZERO(&master);
FD_ZERO(&readfs);
FD_SET(fd,&master);
fdmax=fd;
fp=fdopen(fd,"rw");
memset(backlog,0,CHUNK);
memset(buffer,0,CHUNK);
if(fd) {
int done=0;
// printf("starting main loop.\n");
while(!done) {
extra_handler(fd);
readfs=master;
timeout.tv_sec=0;
timeout.tv_usec=1000;
// printf("trying select. %d\n",time(0));
if( select(fdmax+1,&readfs,0,0,&timeout) == -1 ) {
printf("\n!!!It is crashing here!!!\n\n");
perror("select");
return 1;
}
if(FD_ISSET(fd,&readfs)) {
// printf("An fd is set!!!\n");
if((n=recv(fd,buffer,CHUNK,0)) <= 0) {//read CHUNK bytes
fprintf(stderr,"recv: %d\n",n);
perror("recv");
return 2;
} else {
// printf("%d bytes read\n",n);
buffer[n]=0;//deff right.
if(bllen+n >= blsize) {//this is probably off...
blsize+=n;
t=malloc(blsize);
if(!t) {
printf("OH FUCK! MALLOC FAILED!\n");
exit(253);
}
memset(t,0,blsize);//optional?
memcpy(t,backlog,blsize-n+1);//???
free(backlog);
backlog=t;
}
memcpy(backlog+bllen,buffer,n);
bllen+=n;
// write(1,backlog,bllen);
// write(1,"\n",1);
for(i=0,s=0;i<bllen;i++) {
if(backlog[i]=='\n') {
line=malloc(i-s+3);//on linux it crashes without the +1
if(!line) {
printf("ANOTHER malloc error!\n");
exit(254);
}
memcpy(line,backlog+s,i-s+2);
// printf("NEWLINE!\n");
line[i-s+1]=0;//gotta null terminate this. line_handler expects it.
// printf("libirc: !!! %s !!!\n",line);
s=i+1;//the character after the newline.
if(!strncmp(line,"PING",4)) {
//write(fd,"PONG ",5);
//write(fd,line+6,strlen(line)-6);
fprintf(fp,"PING %s\r\n",line+6);//a whole FILE * and fdopen JUST for this??? oi...
fflush(fp);
#ifdef DEBUG
printf("%s\nPONG %s\n",line,line+6);
write(fd,"PRIVMSG epoch :PONG! w00t!\r\n",28);
#endif
} else if(!strncmp(line,"ERROR",5)) {
#ifdef DEBUG
printf("error: %s\n",line);
#endif
return 0;
} else {
line_handler(fd,line);
}
free(line);
}
}
//left shift the backlog so the last thing we got to is at the start
if(s > bllen) { //if the ending position is after the size of the backlog...
bllen=0;//fuck shifting. :P
} else {
for(i=s;i<=bllen;i++) {//should work.
backlog[i-s]=backlog[i];
}
bllen-=s;
}
}
}
}
} else {
return 0;
}
}
//:hack.thebackupbox.net 433 * sysbot :Nickname is already in use.
//Need to have it check for this.
//and try a nick?
//or something...
//I don't want to add any string parsing to this function. :/
int ircConnect(char *serv,char *port,char *nick,char *user) {
char sendstr[1024];
int fd;
fd=serverConnect(serv,port);
if(!fd) {
return 0;
}
snprintf(sendstr,sizeof(sendstr)-1,"NICK %s\r\nUSER %s\r\n",nick,user);
write(fd,sendstr,strlen(sendstr));
return fd;
}
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