path: root/segfault.c

#include <stdio.h>
#include <stdarg.h>
#include <signal.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <irc.h>
#include <time.h>
#include "config.h"

#define SERVER "192.168.0.2"
#define PORT "6667"
#define NICK "SegFault"

#define LINE_LIMIT line_limit

#define LINES_SENT_LIMIT 1

#define LINELEN 400

#define RAWLOG "./files/rawlog"
#define LOG "./files/log"
#define NEWS_PIPE "./files/news"
#define LINKS_FILE "/var/www/docs/IRClinks.txt"
#define NEWS_FILE "/var/www/cgi-bin/info/news.html"
#define PID_FILE "./files/my.pid"

#define MAXTAILS 400 //just to have it more than the system default.

#define BS 502

//!c uses 56 for its tail.
// 56 = 32 + 16 + 8 = 0x38 = 0x20+0x10+0x8 = SPAM | BEGIN | MSG
#define TAILO_RAW    (0x1)
#define TAILO_EVAL   (0x2)
#define TAILO_CLOSE  (0x4)
#define TAILO_MSG    (0x8)
#define TAILO_BEGIN  (0x10)
#define TAILO_SPAM   (0x20) //Spam control is enabled for this stream.
#define TAILO_ENDMSG (0x40) //show a message when the tail reaches the end of a chunk
#define TAILO_Q_EVAL (TAILO_EVAL|TAILO_CLOSE|TAILO_BEGIN) //0x2+0x4+0x10= 2+4+16=22


int start_time;
char *redo;
int redirect_to_fd;
int line_limit;
int debug;
timer_t timer;
int lines_sent;

//this should add a line to an outgoing queue?
void mywrite(int fd,char *b) {
 if(!b) return;
 if(fd<0) return;
 write(fd,b,strlen(b));
 lines_sent++;
}

void ircmode(int fd,char *channel,char *mode,char *nick) {
 int sz=5+strlen(channel)+1+strlen(mode)+1+strlen(nick)+3;//"MODE ", " ", " ","\r\n\0"
 char *hrm=malloc(sz+1);
 if(!hrm) return (void)mywrite(fd,"QUIT :malloc error 1! holy shit!\r\n");
 snprintf(hrm,sz,"MODE %s %s %s\r\n",channel,mode,nick);
 write(fd,hrm,strlen(hrm));
 free(hrm); 
}

void privmsg(int fd,char *who,char *msg) {
 int i=0;
 char *chunk;
 if(!who) {
  who="epoch";
  msg="didn't have a who. sending this.";
 }
 if(!msg) {
  who="epoch";
  msg="didn't have a message. sending this.";
 }
 if(!msg && !who) {
  who="epoch";
  msg="didn't have a message or a who. sending this.";
 }
 int sz;
 int cs;
 for(i=0;i<strlen(msg);i+=LINELEN) {
  cs=(strlen(msg+i)<=LINELEN)?strlen(msg+i):LINELEN;
  sz=8+strlen(who)+2+cs+3;//"PRIVMSG ", " :", "\r\n\0";
  char *hrm=malloc(sz);
  if(!hrm) return (void)mywrite(fd,"QUIT :malloc error 2! holy shit!\r\n");
  chunk=strndup(msg+i, cs );
  snprintf(hrm,sz+1,"PRIVMSG %s :%s\r\n",who,chunk);
  mywrite(fd,hrm);//not this...
  free(hrm);
  free(chunk);
 }
}

struct tail {
 FILE *fp;
 char *file;
 char *to;
 char *args;
 char opt;
 unsigned int inode;
 int lines;
} tailf[MAXTAILS];

void message_handler(int fd,char *from,char *nick,char *msg,int redones);
void c_untail(int fd,char *from, char *file);

char *format_magic(int fd,char *from,char *nick,char *orig_fmt,char *arg) {
 int i,j;
 int sz=0,c=1;
 char *output;
 char *fmt=strdup(orig_fmt);
 char **args,**notargs;
 for(i=0;fmt[i];i++) {
  if(fmt[i] == '%') {
   i++;
   switch(fmt[i]) {
     case 'u':
     case 'f':
     case 's':
      c++;
   }
  }
 }
 args=malloc((sizeof(char *)) * (c + 1));
 notargs=malloc((sizeof(char *)) * (c + 2));
 c=0;
 for(j=0,i=0;fmt[i];i++) {
  if(fmt[i] == '%') {
   i++;
   switch(fmt[i]) {
     case 'u':
      args[c]=nick;
      break;
     case 'f':
      args[c]=from;
      break;
     case 's':
      args[c]=arg;
      break;
   }
   switch(fmt[i]) {
     case 'u':
     case 'f':
     case 's':
      fmt[i-1]=0;
      notargs[c]=strdup(fmt+j);
      sz+=strlen(args[c]);
      sz+=strlen(notargs[c]);
      c++;
      i++;
      j=i;
      break;
   }
  }
 }
 notargs[c]=strdup(fmt+j);
 sz+=strlen(notargs[c]);
 output=malloc(sz+1);
 for(i=0;i<c;i++) {
  strcat(output,notargs[i]);
  strcat(output,args[i]);
 }
 strcat(output,notargs[i]);
 free(fmt);
 return output;
}
/*
char *format_magic(int fd,char *from,char *nick,char *orig_fmt,char *arg) {
 int i;
 int c=1;
 char *fmt=strdup(orig_fmt);
 for(i=0;fmt[i];i++) {
  if(fmt[i] == '%') {
   i++;
   switch(fmt[i]) {
     case 0:
      printf("error! last character is a '%%'!!!\n");
      exit(1);
     case 'u':
     case 'f':
     case 's':
      c++;
   }
  }
 }
 char **args=malloc((sizeof(char *)) * (c + 1));
 c=0;
 for(i=0;fmt[i];i++) {
  if(fmt[i] == '%') {
   i++;
   switch(fmt[i]) {
     case 0:
      printf("error! last character is a '%%'!!!\n");
      exit(1);
     case 'u':
      args[c]=nick;
      fmt[i]='s';
      c++;
      break;
     case 'f':
      args[c]=from;
      fmt[i]='s';
      c++;
      break;
     case 's':
      args[c]=arg;
      c++;
      break;
   }
  }
 }
// args[c]=0;
// for(i=0;i<c;i++) {
//  printf("args[%d]=%s\n",i,args[i]);
// }
// printf("format string: %s\nc: %d\n",fmt,c);
 int sz=vprintf(fmt,(va_list)args)+1;
// printf("\nsize: %d\n",sz);
 char *output=malloc(sz);
 vsnprintf(output,sz,fmt,(va_list)args);
 free(fmt);
 return output;
}
*/
//get rid of this?
char *good_format_string(int fd,char *from,char *line) {
 int i;
 char tmp[256];
 int scount=0;
 for(i=0;line[i];i++) {
  if(line[i] == '%') {
   if(!line[i+1]) {
    privmsg(fd,from,"bad format string. you have a % as the last character.");
    return 0;
   }
   if(line[i+1] == 's') scount++;
   if( (line[i+1] != 's' && line[i+1] != '%') || (line[i+1] == 's' && scount>1)) {
    privmsg(fd,from,"can only use %s and only once.");
    snprintf(tmp,sizeof(tmp)-1,"bad format string: %s",line);
    privmsg(fd,from,tmp);
    return 0;
   }
   i++;
  }
 }
 return line;
}
//this has a LOT of shit in it.
unsigned long oldtime;

void extra_handler(int fd) {
 if(oldtime == time(0) && lines_sent > LINES_SENT_LIMIT) {//if it is still the same second, skip this function.
  return;
 } else {//different second. reset count.
  lines_sent=0;
 }
 int i;
 int tmpo;
 static int mmerp=0;
 char tmp[BS+1];
 char *tmp2;

 if(redirect_to_fd != -1) {
  fd=redirect_to_fd;
 }

 for(i=0;i<MAXTAILS;i++) {
  if(tailf[i].fp) {
   if(feof(tailf[i].fp)) {
    clearerr(tailf[i].fp);
    if(tailf[i].opt & TAILO_CLOSE) {//use for eval
     c_untail(fd,tailf[i].to,tailf[i].file);
     return;
    }
   }
   tmpo=ftell(tailf[i].fp);
   if(!(tailf[i].opt & TAILO_BEGIN)) {
    if(fseek(tailf[i].fp,0,SEEK_END) == -1) {
     while(fgetc(tailf[i].fp) != -1);//this is used on named pipes usually.
    }
   }
   if(ftell(tailf[i].fp) < tmpo) {
    privmsg(fd,tailf[i].to,"tailed file shrank! resetting to NEW eof.");
   } else {
    fseek(tailf[i].fp,tmpo,SEEK_SET);//???
   }
   if(tailf[i].lines != -1) {
    if(fgets(tmp,BS-1,tailf[i].fp) ) {//for some reason using sizeof(tmp) didn't work. >_>
     tailf[i].lines++;
     mmerp=0;
     if(strchr(tmp,'\r')) *strchr(tmp,'\r')=0;
     if(strchr(tmp,'\n')) *strchr(tmp,'\n')=0;
     if(tailf[i].opt & TAILO_EVAL) {//eval
      if(tailf[i].args) { //only format magic evaled file lines if they have args.
       tmp2=format_magic(fd,tailf[i].to,NICK,tmp,tailf[i].args);
      } else {
       tmp2=strdup(tmp);
       if(!tmp2) return perror("ZOMG malloc error in eval section!!!");
      }
      message_handler(fd,tailf[i].to,NICK,tmp2,0); // FIX ME?!? don't use NICK... make it a global for segfault's nick.
      free(tmp2);
     }
     if(tailf[i].opt & TAILO_RAW) {//raw
      tmp2=malloc(strlen(tmp)+3);
      snprintf(tmp2,strlen(tmp)+3,"%s\r\n",tmp);
      mywrite(fd,tmp2);
      free(tmp2);
     }
     if(tailf[i].opt & TAILO_MSG) {//just msg the lines.
      privmsg(fd,tailf[i].to,tmp);
     }
     if(tailf[i].lines >= LINE_LIMIT && (tailf[i].opt & TAILO_SPAM)) {
      tailf[i].lines=-1; //lock it.
      privmsg(fd,tailf[i].to,"--more--");
     }
    } else {
     if(tailf[i].lines != 0 && (tailf[i].opt & TAILO_ENDMSG)) {
      privmsg(fd,tailf[i].to,"---------- TAILO_ENDMSG border ----------");
     }
     tailf[i].lines=0;
    }
   } else {
    //don't PM in here. shows a LOT of shit.
   }
  }
 }
}

void file_tail(int fd,char *from,char *file,char *args,char opt) {
 int i,j;
 int fdd;
 char tmp[256];
 struct stat st;
 for(i=0;i<MAXTAILS;i++) {
  if(tailf[i].fp == 0) {
   break;
  }
 }
 if(i == MAXTAILS -1) {
  exit(3);
 }
 fdd=open(file,O_RDONLY|O_NONBLOCK,0);//HAVE to open named pipes as nonblocking.
 fstat(fdd,&st);
 for(j=0;j<MAXTAILS;j++) {
  if(tailf[j].fp && tailf[j].file && tailf[j].inode) {
   if(tailf[j].inode == st.st_ino) {
    if(debug) privmsg(fd,from,"THIS FILE IS ALREADY BEING TAILED ELSEWHERE!");
    //i=j;
    //break;//reuse it.
    //return;
   }
  }
 }
 if(!(tailf[i].fp=fdopen(fdd,"r"))) {
  snprintf(tmp,sizeof(tmp),"failed to open file: %s\n",file);
  privmsg(fd,from,tmp);
 } else {
  fcntl(fileno(tailf[i].fp),F_SETFL,O_NONBLOCK);
  if(!(opt & TAILO_BEGIN)) fseek(tailf[i].fp,0,SEEK_END);
  tailf[i].to=malloc(strlen(from)+1);
  if(!tailf[i].to) return (void)mywrite(fd,"QUIT :malloc error 3!!!\r\n");
  strcpy(tailf[i].to,from);
  tailf[i].file=malloc(strlen(file)+1);
  if(!tailf[i].file) return (void)mywrite(fd,"QUIT :malloc error 4!!!\r\n");
  tailf[i].opt=opt;
  tailf[i].inode=st.st_ino;
  tailf[i].args=args?strdup(args):0;
  if(args) if(!tailf[i].args) return (void)mywrite(fd,"QUIT :malloc error 5!!! (well, strdup)\r\n");
  tailf[i].lines=0;
  strcpy(tailf[i].file,file);
 }
}

void c_botup(int fd,char *from) {
 char tmp[256];
 snprintf(tmp,sizeof(tmp)-1,"botup: %lu",time(0)-start_time);
 privmsg(fd,from,tmp);
}

void c_leettail(int fd,char *from,char *file) {
 short a=file[0]-'0';
 short b=file[1]-'0';
 short c=(a*10)+(b);
 char *args;
 if((args=strchr(file,' '))) {
  *args=0;
  args++;
 }
 file_tail(fd,from,file+2,args,c);
}

void c_changetail(int fd,char *from,char *line) {
 char *merp;
 int i;
 //if(line == 0) return mywrite(fd,"QUIT :line == 0 in changetail\r\n");
 //if(from == 0) return mywrite(fd,"QUIT :from == 0 in changetail\r\n");
 if((merp=strchr(line,' '))) {
  *merp=0;
  merp++;
 }
 for(i=0;i<MAXTAILS;i++) {
  //if(tailf[i].file == 0) return mywrite(fd,"QUIT :tailf[i].file == 0 in changetail\r\n");
  if(tailf[i].file) {
   if(!strcmp(tailf[i].file,line)) {
    free(tailf[i].to);
    tailf[i].to=strdup(merp);
    return;
   }
  }
 }
 privmsg(fd,from,"error");
}

void startup_stuff(int fd) {
 mywrite(fd,"OPER g0d WAFFLEIRON\r\n");
 mywrite(fd,"JOIN #cmd\r\n");
 c_leettail(fd,"#cmd","22./scripts/startup");
}

struct alias {
 char *original;
 char *target;
 struct alias *prev;// doubly linked list.
 struct alias *next;
} *a_start,*a_end;

#if 0 ////////////////////////// HASH TABLE SHIT /////////////////////////////////

unsigned short hash(char *v) {//maybe use a seeded rand()? :) yay FreeArtMan.
 unsigned short h=0;
 //I only need the first two bytes hashed anyway. I'll make this better later.
 h=((*v)<<8)+(v?*(v+1):0);
 return h;
}

struct hitem {//with a stick
 char *key
 struct *alias value;//run through this linked list if it isn't the right one.
};

struct **hitem hashtable;

void inittable() {
 int i;
 hashtable=malloc(sizeof(char *)*TSIZE);
 if(!hashtable) return (void *)fprintf(stderr,"malloc error 6 in hash table.\n");
 for(i=0;i<TSIZE;i++) {
  hashtable[i]=0;
 }
}

void setkey_h(char *key,struct alias *value) {
 unsigned short h=hash(key);
 printf("setting: %s(%d)=a struct that contains a lot of shit.\n",key,h,value);
 if(!hashtable[h]) { //empty bucket!
  hashtable[h]=malloc(sizeof(struct item));
  
  hashtable[h]->key=key;
  hashtable[h]->value=value;//strdup this
  return;
 }
 //filled bucket... oh shit.
 if(!strcmp(hashtable[h]->key,key)) { //same key. just change the value.
  hashtable[h]->value=value;//free previous and strdup.
  return;
 }
 else { //collision! add to the linked list.
  for
 }
}

#endif ///////////////////////// HASH TABLE SHIT /////////////////////////////////

void debug_time(int fd,char *from,char *msg) {
 char tmp[100];
// struct itimerspec whattime;
 if(debug) {
//  timer_gettime(timer,&whattime);
//  snprintf(tmp,511,"%d.%d %d.%d",
//           whattime.it_interval.tv_sec,
//           whattime.it_value.tv_nsec,
//           whattime.it_value.tv_sec,
//           whattime.it_value.tv_nsec);
  snprintf(tmp,99,"%lu %s",time(0),msg?msg:"(no message)");//time() returns time_t which on BSD is a long.
  privmsg(fd,from,tmp);
 }
}


//CONVERT
void c_aliases(int fd,char *from,char *line) {
 struct alias *m;
 char tmp[512];
 int i=0,j=0;
// debug_time(fd,from);
 if(!line){
  privmsg(fd,from,"usage: !aliases [search-term]");
  return;
 }
 for(m=a_start;m;m=m->next) {
  if(strcasestr(m->target,line) || strcasestr(m->original,line)) {
   snprintf(tmp,sizeof(tmp)-1,"%s -> %s",m->original,m->target);
   privmsg(fd,from,tmp);
   i++;
  }
  j++;
 }
 snprintf(tmp,sizeof(tmp)-1,"found %d of %d aliases",i,j);
 privmsg(fd,from,tmp);
// debug_time(fd,from);
}

//CONVERT
void c_rmalias(int fd,char *from,char *line) {
 struct alias *m;
 for(m=a_start;m;m=m->next) {
  if(!strcmp(line,m->original)) {
   if(m->next == 0) {
    a_end=m->prev;
   }
   if(m->prev == 0) {
    a_start=m->next;
    free(m->target);
    free(m->original);
    free(m);
   }
   else {
    m->prev->next=m->next;
   }
   privmsg(fd,from,"alias deleted");
   return;
  }
 }
 privmsg(fd,from,"alias not found");
 return;
}

void c_kill(int fd,char *from,char *line) {
 char *csig=line;
 char *cpid=strchr(line,' ');
 if(cpid) {
  *cpid=0;
  cpid++;
 } else {
  privmsg(fd,from,"usage: !kill signum pid");
  return;
 }
 int sig=atoi(csig);
 int pid=atoi(cpid);
 if(sig && pid) {
  if(kill(pid,sig)) privmsg(fd,from,"kill error");
  else privmsg(fd,from,"signal sent");
 } else {
  privmsg(fd,from,"pid or sig is 0. something is odd.");
 }
}

//CONVERT
void c_alias(int fd,char *from,char *line) {
 char *derp=strchr(line,' ');
 struct alias *tmp;
 char tmps[256];
 if(!derp) {
  for(tmp=a_start;tmp;tmp=tmp->next) {
   if(!strcmp(line,tmp->original)) {
    privmsg(fd,from,tmp->target);
    return;
   }
  }
  privmsg(fd,from,"not an alias.");
  return;
 }
 //line=good_format_string(fd,from,line);
 if(!line) return;
 *derp=0;
 for(tmp=a_start;tmp;tmp=tmp->next) {
  if(!strcmp(line,tmp->original)) {
   snprintf(tmps,sizeof(tmps)-1,"duplicate alias: %s",line);
   privmsg(fd,from,tmps);
   return;
  }
 }
 tmp=a_end;
 struct alias *tmp2=malloc(sizeof(struct alias)+20);
 if(!tmp2) return (void)mywrite(fd,"QUIT :malloc error 7!!!\r\n");
 if(a_end == 0) {
  a_end=tmp2;
  a_start=tmp2;
  a_end->prev=0;
 } else {
  a_end->next=tmp2;
  a_end=tmp2;
  a_end->prev=tmp;
 }
 a_end->target=strdup(derp+1);
 a_end->original=strdup(line);
 a_end->next=0;
}

void c_id(int fd,char *from) {
 char tmp[512];
 snprintf(tmp,sizeof(tmp)-1,"u:%d g:%d eu:%d eg:%d",getuid(),getgid(),geteuid(),getegid());
 privmsg(fd,from,tmp);
}

void c_leetuntail(int fd,char *from,char *line) {
 char *frm=line;
 char *file=0;
 int frmN=0;
 int i;
 char tmp[512];
 if((file=strchr(line,' '))) {
  *file=0;
  file++;
 }
 if(file) {
  if(*frm == '*') {
   for(i=0;i<MAXTAILS;i++) {
    if(tailf[i].fp && !strcmp(tailf[i].file,file)) {
     //c_untail(fd,tailf[i].to,file);
     fclose(tailf[i].fp);
     tailf[i].fp=0;
     free(tailf[i].to);
     free(tailf[i].file);
     return;
    }
   }
   snprintf(tmp,sizeof(tmp)-1,"%s from %s not being tailed.",file,frm);
   privmsg(fd,from,tmp);
  } else {
   c_untail(fd,frm,file);
  }
 } else {
  frmN=atoi(frm);
  if(frmN < MAXTAILS && tailf[frmN].fp) {
   fclose(tailf[frmN].fp);
   tailf[frmN].fp=0;
   free(tailf[frmN].to);
   free(tailf[frmN].file);
   snprintf(tmp,sizeof(tmp)-1,"untailed file tail #%d.",frmN);
  } else {
   snprintf(tmp,sizeof(tmp)-1,"file tail #%d isn't a valid number.",frmN);
  }
  privmsg(fd,from,tmp);
 }
}

void c_tailunlock(int fd,char *from,char *file) {
 int i;
 for(i=0;i<MAXTAILS;i++) {
  if(tailf[i].fp) {
   if(!strcmp(file,tailf[i].file)) {
    tailf[i].lines=0;
    return;
   }
  }
 }
 privmsg(fd,from,"file not found in the tail list.");
}

void c_untail(int fd,char *from, char *file) {
 int i;
 for(i=0;i<MAXTAILS;i++) {
  if(tailf[i].fp) {
   if(!strcmp(from,tailf[i].to) && !strcmp(file,tailf[i].file)) {
    fclose(tailf[i].fp);
    tailf[i].fp=0;
    free(tailf[i].to);
    free(tailf[i].file);
    //privmsg(fd,from,"tailed file no longer being tailed.");
    return;
   }
  }
 }
 privmsg(fd,from,"I don't know what file you're talking about.");
 privmsg(fd,from,"You have to be in the same channel that the tail was set in.");
}

char append_file(int fd,char *from,char *file,char *line,unsigned short nl) {
 int fdd;
 char tmp[512];
 char derp[2];
 derp[0]=(char)nl;
 derp[1]=0;
 FILE *fp;
 if(line == 0) return mywrite(fd,"QUIT :line == 0 in append_file\r\n"),-1;
 fdd=open(file,O_WRONLY|O_NONBLOCK|O_APPEND|O_CREAT,0640);//HAVE to open named pipes as nonblocking.
 if(fdd == -1) {
  snprintf(tmp,sizeof(tmp)-1,"Couldn't open file (%s) fd:%d for a LOT of modes... figure out out.",file,fdd);
  privmsg(fd,from,tmp);
  privmsg(fd,from,strerror(errno));
  return 0;
 }
 if(!(fp=fdopen(fdd,"a"))) {
  snprintf(tmp,sizeof(tmp)-1,"Couldn't fdopen file (%s) fd:%d for appending.",file,fdd);
  privmsg(fd,from,tmp);
  privmsg(fd,from,strerror(errno));
  return 0;
 }
 fcntl(fileno(fp),F_SETFL,O_NONBLOCK);
 fseek(fp,0,SEEK_END);//is this right for named pipes?
 //if(fprintf(fp,"%s%s",line,(char *)
 //                     ( nl != 0 ?
 //                       &nl :
 //                       (unsigned short *)"" )
  if(fprintf(fp,"%s\n",line
           ) < 0) {
  privmsg(fd,from,"error writing to file.");
  return 0;
 }
 fflush(fp);//???
 fflush(fp);
 fclose(fp);
 return 1;
}

void c_leetappend(int fd,char *from,char *msg) {
 unsigned short nl;
 char *file=msg;
 char *snl=0;
 char *line=0;
 if((snl=strchr(msg,' '))) {
  *snl=0;
  snl++;
  if((line=strchr(snl,' '))) {
   *line=0;
   line++;
  }
 }
 if(!snl || !line) {
  privmsg(fd,from,"usage: !leetappend file EOL-char-dec line-to-put");
  return;
 }
 nl=((snl[0]-'0')*10)+((snl[1]-'0'));
 append_file(fd,from,file,line,nl);
}

char *tailmode_to_txt(int mode) {//this needs to be updated.
 if(mode & TAILO_RAW) return "raw";
 if(mode & TAILO_MSG) return "msg";
 if(mode & TAILO_EVAL) return "eval";
 return "undef";
}

void c_tails(int fd,char *from) {
 int i;
 int l;
 char *tmp;
 //privmsg(fd,from,"filename@filepos --msg|raw-> IRCdestination");
 for(i=0;i<MAXTAILS;i++) {
  if(tailf[i].fp) {
   l=(strlen(tailf[i].file) + strlen(tailf[i].to) + 50);//??? hack. fix it.
   tmp=malloc(l);
   if(!tmp) return (void)mywrite(fd,"QUIT :malloc error 8\r\n");
   snprintf(tmp,l,"%s [i:%d] @ %ld (%d) --[%s(%02x)]--> %s",tailf[i].file,tailf[i].inode,ftell(tailf[i].fp),tailf[i].lines,tailmode_to_txt(tailf[i].opt),tailf[i].opt,tailf[i].to);
   privmsg(fd,from,tmp);
   free(tmp);
  }
 }
}

char recording,recording_raw;

void c_record(int fd,char *from,char *line) {
 if(*line == '0') {
  privmsg(fd,from,"no longer recording IRC.");
  recording=0;
  return;
 }
 if(*line == '1') {
  recording=1;
  unlink(LOG);
  privmsg(fd,from,"recording IRC.");
  return;
 }
 privmsg(fd,from,recording?"1":"0");
}

void c_rawrecord(int fd,char *from,char *line) {
 if(*line == '0') { 
  privmsg(fd,from,"no longer recording raw IRC.");
  recording_raw=0;
  return;
 }
 if(*line == '1') {
  recording_raw=1;
  unlink(RAWLOG);
  privmsg(fd,from,"recording raw IRC.");
  return;
 }
 privmsg(fd,from,recording_raw?"1":"0");
}


void c_leetsetout(int fd,char *from,char *msg) {
 if(redirect_to_fd != -1) close(redirect_to_fd);
 redirect_to_fd=open(msg+3,((msg[0]-'0')*100) + ((msg[1]-'0')*10) + (msg[2]-'0'),022);
 if(redirect_to_fd == -1) {
  privmsg(fd,from,"failed to open file as redirect:");
  privmsg(fd,from,msg+3);
 }
}

void c_linelimit(int fd,char *from,char *msg) {
 char tmp[256];
 //struct itimerspec settime;
 //settime.it_interval.tv_sec=0;
 //settime.it_interval.tv_nsec=10;
 //settime.it_value.tv_nsec=0;
 //settime.it_value.tv_nsec=10;
 if(!msg) {
  snprintf(tmp,255,"current spam line limit: %d (debug: %d)",line_limit,debug);
  privmsg(fd,from,tmp);
 }
 else {
  if(atoi(msg) > 1) {
   line_limit=atoi(msg);
   snprintf(tmp,255,"spam line limit set to: %d",line_limit);
   privmsg(fd,from,tmp);
  } else {
   privmsg(fd,from,"please set the limit to > 1... oi. (btw, debug has been flipped)");
   debug^=1;
//   if(debug) {
//    if(timer_create(CLOCK_REALTIME,SIGEV_NONE,&timer) == -1) {
//     privmsg(fd,from,(debug=0,"error making debug timer. shit."));
//    }
//    if(timer_settime(timer,0,&settime,&settime) == -1) {
//     privmsg(fd,from,(debug=0,"error setting debug timer. shit."));     
//    }
//   }
//   else if(timer_delete(timer) == -1) {
//    privmsg(fd,from,"error deleting timer. shit.");
//   }
  }
 }
}

void c_resetout(int fd,char *from) {
 redirect_to_fd=-1;
 privmsg(fd,from,"output reset");
}

void message_handler(int fd,char *from,char *nick,char *msg,int redones) {
 struct alias *m;
 char *tmp2;
 char tmp[512];
 int sz;
 //debug_time(fd,from);
 if(redirect_to_fd != -1) {
  fd=redirect_to_fd;
 }
 if(recording) {
  debug_time(fd,from,"writing to log...");
  append_file(fd,"raw",LOG,msg,'\n');
  debug_time(fd,from,"finished writing to log.");
 }
 if(*msg != '!') {
  return;
 }

 //this section could probably be made a LOT shorter with
 //an array of structs that contain command and function pointer.
 //... meh. it'd just be a LITTLE bit shorter.

 // this still seems horrible though. all those constants in there that are just strlen()s...
 if(!strncmp(msg,"!leetsetout ",12)) {
  c_leetsetout(fd,from,msg+12);
 }
 else if(!strncmp(msg,"!whoami",7)) {
  privmsg(fd,from,nick);
 }
 else if(!strncmp(msg,"!whereami",9)) {
  privmsg(fd,from,from);
 }
 else if(!strncmp(msg,"!resetout",9)) {
  c_resetout(fd,from);
 }
 else if(!strncmp(msg,"!botup",6)) {
  c_botup(fd,from);
 }
 else if(!strncmp(msg,"!linelimit",10)) {
  c_linelimit(fd,from,*(msg+10)?msg+11:0);  
 }
 else if(!strncmp(msg,"!tailunlock ",12)) {
  c_tailunlock(fd,from,msg+12);
 }
 else if(!strncmp(msg,"!changetail ",12)) {
  c_changetail(fd,from,msg+12);
 }
 else if(!strncmp(msg,"!tails",6)) {
  c_tails(fd,from);
 }
 else if(!strncmp(msg,"!record ",8)) {
  c_record(fd,from,msg+8);
 }
 else if(!strncmp(msg,"!rawrecord ",11)) {
  c_rawrecord(fd,from,msg+11);
 }
 else if(!strncmp(msg,"!leettail ",10)) {
  c_leettail(fd,from,msg+10);
 }
 else if(!strncmp(msg,"!leetuntail ",12)) {
  c_leetuntail(fd,from,msg+12);
 }
 else if(!strncmp(msg,"!leetappend ",12)) {
  c_leetappend(fd,from,msg+12);
 }
 else if(!strncmp(msg,"!untail ",8)) {
  c_untail(fd,from,msg+8);
 }
 else if(!strncmp(msg,"!raw ",5)) {
  tmp2=malloc(strlen(msg)-5+3);
  snprintf(tmp2,strlen(msg)-5+2,"%s\r\n",msg+5);
  mywrite(fd,tmp2);
  free(tmp2);
  //write(fd,msg+5,strlen(msg)-5);
  //write(fd,"\r\n",2);
 }
 else if(!strncmp(msg,"!say ",5)) {
  privmsg(fd,from,msg+5);
 }
 else if(!strncmp(msg,"!id",3)) {
  c_id(fd,from);
 }
 else if(!strncmp(msg,"!kill ",6)) {
  c_kill(fd,from,msg+6);
 }
 else if(!strncmp(msg,"!alias ",7)) {
  c_alias(fd,from,msg+7);
 }
 else if(!strncmp(msg,"!rmalias ",9)) {
  c_rmalias(fd,from,msg+9);
 }
 else if(!strncmp(msg,"!aliases",8)) {
  c_aliases(fd,from,*(msg+8)?msg+9:0);
 }
 else if(redones < 5) {
  debug_time(fd,from,"checking aliases...");
  //CONVERT
  for(m=a_start;m;m=m->next) {//optimize this. hash table?
   if(!strncmp(msg,m->original,strlen(m->original)) && (msg[strlen(m->original)]==' ' || msg[strlen(m->original)] == 0)) {//this allows !c to get called when using !c2 if !c2 is defined after !c. >_>
    sz=(strlen(msg)-strlen(m->original)+strlen(m->target)+1);
    //redo=malloc(sz);
    //if(!redo) (void *)mywrite(fd,"QUIT :malloc error 9!!!\r\n");
    //this is where the format string is used...
    //generate an array based on the format string containing %N stuff in the right order.
    // %u = user, %f = from (user/channel)
    // handling it here would be a bitch. maybe
    // redo=apply_alias(fd,from,sz,m->target) ??? new function would probably be good.
    redo=format_magic(fd,from,nick,m->target,*(msg+strlen(m->original)+1)=='\n'?"":(msg+strlen(m->original)+1));
    //snprintf(redo,sz,m->target,*(msg+strlen(m->original)+1)=='\n'?"":(msg+strlen(m->original)+1) );
    message_handler(fd,from,nick,redo,redones+1);
    free(redo);
    redo=0;
    return;
   }
  }
  debug_time(fd,from,"finished checking aliases. not found.");
  //privmsg(fd,from,msg);
  //  '!c ' + (msg - '!');
//  sz=(strlen(msg)+4);
//  redo=malloc(sz);
//  if(!redo) (void *)mywrite(fd,"QUIT :malloc error 10!!!\r\n");
//  snprintf(redo,sz-1,"!c %s",msg+1);
//  privmsg(fd,from,redo);
//  message_handler(fd,from,nick,redo,redones+1);
//  free(redo);
  redo=0;
  snprintf(tmp,sizeof(tmp),"unknown command: %s",msg);
  privmsg(fd,from,tmp);
//  privmsg(fd,from,"I don't know what you're talking about, man.");
 }
 if(redones >=5) {
  privmsg(fd,from,"too much recursion.");
 }
 //debug_time(fd,from);
}

void line_handler(int fd,char *line) {//this should be built into the libary?
 //static int flag=0;
 //char *a=":hacking.allowed.org 366 ";
 char *s=line;
 char *nick=0,*name=0,*host=0;
 char *t=0,*u=0;
 if(strchr(line,'\r')) *strchr(line,'\r')=0;
 if(strchr(line,'\n')) *strchr(line,'\n')=0;
 //:nick!name@host MERP DERP :message
 //strchr doesn't like null pointers. :/ why not just take them and return null?
 //check that I haven't gone past the end of the string? nah. it should take care of itself.
 if(recording_raw) {
  append_file(fd,"epoch",RAWLOG,line,'\n');
 }
 if((nick=strchr(line,':'))) {
  *nick=0;
  nick++;
  if((name=strchr(nick,'!'))) {
   *name=0;
   name++;
   if((host=strchr(name,'@'))) {
    *host=0;
    host++;
    if((s=strchr(host,' '))) {
     *s=0;
     s++;
     if((t=strchr(s,' '))) {
      *t=0;
      t++;
      if((u=strchr(t,' '))) {//:
       *u=0;
       u++;
      }
     }
    }
   }
  }
 }
 //printf("<%s!%s@%s> '%s' '%s' '%s'\n",nick,name,host,s,t,u);
 //if(to_file!=0) {
 // fd=
 //}
 if(s && t && u) {
  if(!strcmp(s,"PRIVMSG")) {
   u++;
   if(*t == '#')//channel.
    message_handler(fd,t,nick,u,0);
   else
    message_handler(fd,nick,nick,u,0);
  }
 }
 if(s && nick && t) {
  if(!strcmp(s,"JOIN")) {
   ircmode(fd,t+1,"+v",nick);
  }
 }
}

int main(int argc,char *argv[]) {
 int fd;
 int c;
 chdir("/home/segfault");
 redirect_to_fd=-1;
 debug=0;
 lines_sent=0;
 line_limit=25;
 recording=0;
 recording_raw=0;
 start_time=time(0);
 a_start=0;
 a_end=0;
 redo=0;
 printf("starting segfault...\n");
 for(c=0;c<MAXTAILS;c++) tailf[c].fp=0;
 fd=ircConnect(SERVER,PORT,argc>1?argv[1]:NICK,"segfault segfault segfault :segfault");
 startup_stuff(fd);
 return runit(fd,line_handler,extra_handler);
}