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-rw-r--r--segfault.c253
1 files changed, 159 insertions, 94 deletions
diff --git a/segfault.c b/segfault.c
index 926c93d..98b7834 100644
--- a/segfault.c
+++ b/segfault.c
@@ -8,6 +8,7 @@
#include <fcntl.h>
#include <time.h>
#include <pwd.h>
+#include <sys/resource.h>
#include "libirc/irc.h" //epoch's libirc. should be included with segfault.
#include "libhashtable/hashtable.h" //epoch's also.
@@ -23,7 +24,7 @@
#define SEGHOMELEN 1024
#define RAWLOG "./files/rawlog"
#define LOG "./files/log"
-#define MAXTAILS 400 //just to have it more than the system default.
+#define MAXTAILS maxtails //just to have it more than the system default.
#define BS 4096
// !c uses 56 for its tail.
// 56 == 32 + 16 + 8 == 0x38 == 0x20+0x10+0x8 == SPAM | BEGIN | MSG
@@ -31,14 +32,15 @@
#define TAILO_EVAL 2 // e interpret the lines read from the tail as if they were messages to segfault
#define TAILO_CLOSE 4 // c close the file at EOF, default is to leave it open.
#define TAILO_MSG 8 // m output gets sent as a PM to the place the tail was made.
-#define TAILO_BEGIN 16 //b start the tail at the beginning of the file instead of the end.
-#define TAILO_SPAM 32 //s Spam control is enabled for this stream.
-#define TAILO_ENDMSG 64 //n show a message when the tail reaches the end of a chunk
+#define TAILO_BEGIN 16 // b start the tail at the beginning of the file instead of the end.
+#define TAILO_SPAM 32 // s Spam control is enabled for this stream.
+#define TAILO_ENDMSG 64 // n show a message when the tail reaches the end of a chunk
+#define TAILO_FORMAT 128// f formatting?
#define TAILO_Q_EVAL (TAILO_EVAL|TAILO_CLOSE|TAILO_BEGIN) //0x2+0x4+0x10 = 2+4+16 = 22
#define TAILO_Q_COUT (TAILO_SPAM|TAILO_BEGIN|TAILO_MSG) //0x20+0x10+0x8 = 32+16+8 = 56
//this function isn't with the rest of them because... meh.
-char *tailmode_to_txt(int mode) {
+char *tailmode_to_txt(unsigned short mode) {
char *modes="recmbsn";
int i,j=0;
char *m=malloc(strlen(modes));
@@ -65,10 +67,20 @@ int debug;
timer_t timer;
int lines_sent;
unsigned long oldtime;
+int maxtails;
struct hashtable alias;
struct hashtable builtin;
+union hack {
+ void (*func)(int,...);
+ void *data;
+};
+
+#define HACK(a) (void *)((union hack){a}.data)
+
+void (*func)(int fd,...);
+
struct user {
char *nick;
char *name;
@@ -81,10 +93,10 @@ struct tail {
char *to;
char *args;
struct user *user;
- char opt;
+ unsigned short opt;
unsigned int inode;
int lines;
-} tailf[MAXTAILS];
+} *tailf;
char *shitlist[] = { 0 };
@@ -161,6 +173,7 @@ char *format_magic(int fd,char *from,struct user *user,char *orig_fmt,char *arg)
char seghome[SEGHOMELEN];
char *output,*fmt;
char **args,**notargs;
+ if(!arg) arg="%s";
if(!(fmt=strdup(orig_fmt))) return 0;
for(i=0;fmt[i];i++) {
if(fmt[i] == '%') {
@@ -273,10 +286,10 @@ void extra_handler(int fd) {
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. //why?
+ if(tailf[i].opt & TAILO_FORMAT) {
tmp2=format_magic(fd,tailf[i].to,tailf[i].user,tmp,tailf[i].args);
} else {
- if(!(tmp2=strdup(tmp))) exit(2);
+ tmp2=strdup(tmp);
}
message_handler(fd,tailf[i].to,tailf[i].user,tmp2,0);
free(tmp2);
@@ -303,7 +316,7 @@ void extra_handler(int fd) {
}
void file_tail(int fd,char *from,char *file,char *args,char opt,struct user *user) {
- int i,j;
+ int i;
int fdd;
char tmp[256];
struct stat st;
@@ -315,20 +328,25 @@ void file_tail(int fd,char *from,char *file,char *args,char opt,struct user *use
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((fdd=open(file,O_RDONLY|O_NONBLOCK,0)) == -1) {
+ snprintf(tmp,sizeof(tmp)-1,"file_tail: %s: (%s) fd:%d",strerror(errno),file,fdd);
+ privmsg(fd,"#cmd",tmp);
+ return;
+ }
+ snprintf(tmp,sizeof(tmp)-1,"file_tail opened file '%s' with fd: %d / %d",file,fdd,maxtails);
+ privmsg(fd,"#cmd",tmp);
+ fstat(fdd,&st); // <-- is this needed?
+ /*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. make sure to add free()ing code for this.
//return;//don't tail files twice
//;just add another tail for it
- }
- }
- }
+ }}}*/
+ i=fdd;//hack hack hack. :P
if(!(tailf[i].fp=fdopen(fdd,"r"))) {
- snprintf(tmp,sizeof(tmp),"failed to open file: %s\n",file);
+ snprintf(tmp,sizeof(tmp),"file_tail: failed to fdopen(%s)\n",file);
privmsg(fd,from,tmp);
} else {
fcntl(fileno(tailf[i].fp),F_SETFL,O_NONBLOCK);
@@ -375,18 +393,29 @@ void c_botup(int fd,char *from,...) {
void c_leettail(int fd,char *from,char *file,struct user *user,...) {
short a=file[0]-'0';
short b=file[1]-'0';
- short c=(a*10)+(b);
+ short c=file[2]-'0';
+ short d;
+ short n;
+ if(file[2] >= '0' && file[2] <= '9') {
+ d=(a*100)+(b*10)+(c);
+ n=3;
+ } else {
+ d=(a*10)+(b);
+ n=2;
+ }
char *args;
+ if(file[0]==' ') file++;
if((args=strchr(file,' '))) {
*args=0;
args++;
}
- file_tail(fd,from,file+2,args,c,user);
+ file_tail(fd,from,file+n,args,d,user);
}
void c_changetail(int fd,char *from,char *line,struct user *user,...) {
struct stat st;
char *merp=0;
+ char tmp[512];
int i;
int fdd;
char *mode=0;
@@ -400,8 +429,15 @@ void c_changetail(int fd,char *from,char *line,struct user *user,...) {
mode++;
}
}
- fdd=open(line,O_RDONLY|O_NONBLOCK,0);//HAVE to open named pipes as nonblocking.
+ if((fdd=open(line,O_RDONLY|O_NONBLOCK,0)) == -1) {
+ snprintf(tmp,sizeof(tmp)-1,"%s: (%s) fd:%d",strerror(errno),line,fdd);
+ privmsg(fd,"#cmd",tmp);
+ return;
+ }
+ snprintf(tmp,sizeof(tmp)-1,"changetail opened file '%s' with fd: %d / %d\n",line,fdd,maxtails);
+ privmsg(fd,"#cmd",tmp);
fstat(fdd,&st);
+ close(fdd);
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) {
@@ -418,8 +454,16 @@ void c_changetail(int fd,char *from,char *line,struct user *user,...) {
privmsg(fd,from,"tail not found");
}
+void prestartup_stuff(int fd) {
+ int fdd;
+ if((fdd=open("./scripts/prestartup",O_RDONLY))) {
+ close(fdd);
+ c_leettail(fd,"#cmd","22./scripts/prestartup",myuser);
+ }
+}
+
void startup_stuff(int fd) {
- c_leettail(fd,myuser->nick,"22./scripts/startup",myuser);
+ c_leettail(fd,"#cmd","150./scripts/startup",myuser);
}
void debug_time(int fd,char *from,char *msg) {
@@ -434,7 +478,7 @@ void c_builtin(int fd,char *from,char *line,...) {
char tmp[512];
char *function=line;
char *addr;
- unsigned int address;
+ unsigned int address; // lol. will fail on x64
if(!line) return;
if((addr=strchr(line,' '))) {
*addr=0;
@@ -446,7 +490,7 @@ void c_builtin(int fd,char *from,char *line,...) {
}
snprintf(tmp,sizeof(tmp)-1,"address read: %08x",address);
privmsg(fd,from,tmp);
- ht_setkey(&builtin,function,address);
+ ht_setkey(&builtin,function,(void *)address);
return;
}
@@ -489,7 +533,7 @@ void c_aliases_h(int fd,char *from,char *line,...) {
//privmsg(fd,from,tmp);
for(m=alias.bucket[alias.keys[i]]->ll;m;m=m->next) {
if(strcasestr(m->target,line) || strcasestr(m->original,line)) {
- snprintf(tmp,sizeof(tmp)-1," %s -> %s",m->original,m->target);
+ snprintf(tmp,sizeof(tmp)-1," %s -> %s",m->original,(char *)m->target);
privmsg(fd,from,tmp);
j++;
}
@@ -506,7 +550,8 @@ void c_alias_h(int fd,char *from,char *line,...) {
struct entry *tmp;
if(!derp) {
if((tmp=ht_getnode(&alias,line)) != NULL) {
- privmsg(fd,from,tmp->target);
+ snprintf(tmps,sizeof(tmps)," %s",(char *)tmp->target);
+ privmsg(fd,from,tmps);
} else {
snprintf(tmps,sizeof(tmps),"'%s' not an alias.",line);
privmsg(fd,from,tmps);
@@ -542,12 +587,6 @@ void c_kill(int fd,char *from,char *line,...) {
}
}
-void c_pid(int fd,char *from,...) {
- char tmp[512];
- snprintf(tmp,sizeof(tmp)-1,"pid: %d",getpid());
- privmsg(fd,from,tmp);
-}
-
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());
@@ -642,12 +681,13 @@ char append_file(int fd,char *from,char *file,char *line,unsigned short nl) {
derp[0]=(char)nl;
derp[1]=0;
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) {
+ if((fdd=open(file,O_WRONLY|O_NONBLOCK|O_APPEND|O_CREAT,0640)) == -1) {
snprintf(tmp,sizeof(tmp)-1,"%s: (%s) fd:%d",strerror(errno),file,fdd);
privmsg(fd,from,tmp);
return 0;
}
+ snprintf(tmp,sizeof(tmp)-1,"append_file opened file '%s' with fd: %d / %d\n",file,fdd,maxtails);
+ privmsg(fd,"#cmd",tmp);
if(!(fp=fdopen(fdd,"a"))) {
snprintf(tmp,sizeof(tmp)-1,"Couldn't fdopen file (%s) fd:%d for appending.",file,fdd);
@@ -710,7 +750,7 @@ void c_tails(int fd,char *from,...) {
return;
}
x=tailmode_to_txt(tailf[i].opt);
- snprintf(tmp,l,"%s [i:%d] @ %ld (%d) --[%s(%02d)]--> %s",tailf[i].file,tailf[i].inode,ftell(tailf[i].fp),tailf[i].lines,x,tailf[i].opt,tailf[i].to);
+ snprintf(tmp,l,"%s [i:%d] @ %ld (%d) --[%s(%03u)]--> %s",tailf[i].file,tailf[i].inode,ftell(tailf[i].fp),tailf[i].lines,x,tailf[i].opt,tailf[i].to);
free(x);
privmsg(fd,from,tmp);
free(tmp);
@@ -739,6 +779,10 @@ void c_record(int fd,char *from,char *line,...) {
}
void c_rawrecord(int fd,char *from,char *line,...) {
+ if(!line) {
+ printf("that's odd.\n");
+ return;
+ }
if(*line == '0') {
privmsg(fd,from,"no longer recording raw IRC.");
recording_raw=0;
@@ -755,12 +799,16 @@ void c_rawrecord(int fd,char *from,char *line,...) {
void c_leetsetout(int fd,char *from,char *msg,...) {
+ char tmp[512];
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);
+ snprintf(tmp,sizeof(tmp)-1,"%s: (%s) fd:%d",strerror(errno),msg+3,redirect_to_fd);
+ privmsg(fd,"#cmd",tmp);
+ return;
}
+ snprintf(tmp,sizeof(tmp)-1,"leetsetout opened file '%s' with fd: %d / %d\n",msg+3,redirect_to_fd,maxtails);
+ privmsg(fd,"#cmd",tmp);
}
void c_linelimit(int fd,char *from,char *msg,...) {
@@ -817,12 +865,12 @@ void c_nick(int fd,char *from,char *msg,...) {
irc_nick(fd,myuser->nick);
}
-void (*func)(int fd,...);
-
void message_handler(int fd,char *from,struct user *user,char *msg,int redones) {
struct entry *m;
+ union hack lol;
char *command;
char *args;
+// char *magic;
char tmp[512];
int len;
int sz;
@@ -842,7 +890,8 @@ void message_handler(int fd,char *from,struct user *user,char *msg,int redones)
}
if(recording) {
debug_time(fd,from,"writing to log...");
- append_file(fd,"raw",LOG,msg,'\n');
+ snprintf(tmp,sizeof(tmp)-1,"<%s> %s",user->nick,msg);
+ append_file(fd,user->nick,LOG,tmp,'\n');
debug_time(fd,from,"finished writing to log.");
}
len=strchr(msg,'*')?strchr(msg,'*')-msg:strlen(myuser->nick);
@@ -860,11 +909,6 @@ void message_handler(int fd,char *from,struct user *user,char *msg,int redones)
// 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...
command=strdup(msg);
if(command[0] == trigger_char) {
command++;
@@ -876,11 +920,21 @@ void message_handler(int fd,char *from,struct user *user,char *msg,int redones)
*args=0;
args++;
}
- if((func=ht_getvalue(&builtin,command))) {
+ //if(!strncmp(command,"lambda",6)) {
+ // command+=8;
+ // if((args=strchr(command,' '))) {
+ // *args=0;
+ // args++;
+ // }
+ // args=format_magic(fd,from,user,args,":/");
+ //}
+ if((lol.data=ht_getvalue(&builtin,command))) {
+ func=lol.func;
// privmsg(fd,from,"found it in builtins HT.");
- // snprintf(tmp,sizeof(tmp)-1,"c_pid: %p c_pid_returned: %p",c_pid,func);
- // privmsg(fd,from,tmp);
func(fd,from,args,user);
+ //if(args != (command + strlen(command) + 2)) {
+ // free(args);
+ //}
}
else if(redones < 5) {
debug_time(fd,from,"checking aliases...");
@@ -911,9 +965,9 @@ void line_handler(int fd,char *line) {//this should be built into the libary?
user->nick=0;
user->name=0;
user->host=0;
- printf("line: %s\n",line);
if(strchr(line,'\r')) *strchr(line,'\r')=0;
if(strchr(line,'\n')) *strchr(line,'\n')=0;
+ printf("line: '%s'\n",line);
//:nick!name@host MERP DERP :message
//:nick!name@host s t :u
//:armitage.hacking.allowed.org MERP DERP :message
@@ -932,27 +986,29 @@ void line_handler(int fd,char *line) {//this should be built into the libary?
(user->nick)++;
}
}
- if((s=strchr((user->nick),' '))) {
- *s=0;
- s++;
- if((t=strchr(s,' '))) {
- *t=0;
- t++;
- if((u=strchr(t,' '))) {//:
- *u=0;
- u++;
+ if(user->nick) {
+ if((s=strchr((user->nick),' '))) {
+ *s=0;
+ s++;
+ if((t=strchr(s,' '))) {
+ *t=0;
+ t++;
+ if((u=strchr(t,' '))) {//:
+ *u=0;
+ u++;
+ }
}
}
- }
- if(((user->name)=strchr((user->nick),'!'))) {
- *(user->name)=0;
- (user->name)++;
- if(((user->host)=strchr((user->name),'@'))) {
- *(user->host)=0;
- (user->host)++;
+ if(((user->name)=strchr((user->nick),'!'))) {
+ *(user->name)=0;
+ (user->name)++;
+ if(((user->host)=strchr((user->name),'@'))) {
+ *(user->host)=0;
+ (user->host)++;
+ }
+ } else {
+ user->host=user->nick;
}
- } else {
- user->host=user->nick;
}
//all this shit.
@@ -969,7 +1025,7 @@ void line_handler(int fd,char *line) {//this should be built into the libary?
myuser->nick[strlen(myuser->nick)-1]=(rand()%10)+'0';
irc_nick(fd,myuser->nick);
}
- if(!strcmp(s,"004")) {//we're connected. start trying the startup.
+ if(!strcmp(s,"004")) {//we're connected.
startup_stuff(fd);
}
}
@@ -1009,32 +1065,33 @@ void line_handler(int fd,char *line) {//this should be built into the libary?
int main(int argc,char *argv[]) {
int fd;
struct passwd *pwd;
+ struct rlimit nofile;
char *s,*p;
int c;
inittable(&builtin,TSIZE);
- ht_setkey(&builtin,"builtin",c_builtin);
- ht_setkey(&builtin,"builtins",c_builtins);
- ht_setkey(&builtin,"raw",c_raw);
- ht_setkey(&builtin,"leetsetout",c_leetsetout);
- ht_setkey(&builtin,"resetout",c_resetout);
- ht_setkey(&builtin,"botup",c_botup);
- ht_setkey(&builtin,"linelimit",c_linelimit);
- ht_setkey(&builtin,"nick",c_nick);
- ht_setkey(&builtin,"tailunlock",c_tailunlock);
- ht_setkey(&builtin,"changetail",c_changetail);
- ht_setkey(&builtin,"tails",c_tails);
- ht_setkey(&builtin,"record",c_record);
- ht_setkey(&builtin,"rawrecord",c_rawrecord);
- ht_setkey(&builtin,"leettail",c_leettail);
- ht_setkey(&builtin,"leetuntail",c_leetuntail);
- ht_setkey(&builtin,"leetappend",c_leetappend);
- ht_setkey(&builtin,"untail",c_untail);
- ht_setkey(&builtin,"say",c_say);
- ht_setkey(&builtin,"id",c_id);
- ht_setkey(&builtin,"pid",c_pid);
- ht_setkey(&builtin,"kill",c_kill);
- ht_setkey(&builtin,"alias",c_alias_h);
- ht_setkey(&builtin,"aliases",c_aliases_h);
+#define BUILDIN(a,b) ht_setkey(&builtin,a,(void *)((union hack){(void (*)(int,...))b}.data))
+ BUILDIN("builtin",c_builtin);
+ BUILDIN("builtins",c_builtins);
+ BUILDIN("raw",c_raw);
+ BUILDIN("leetsetout",c_leetsetout);
+ BUILDIN("resetout",c_resetout);
+ BUILDIN("botup",c_botup);
+ BUILDIN("linelimit",c_linelimit);
+ BUILDIN("nick",c_nick);
+ BUILDIN("tailunlock",c_tailunlock);
+ BUILDIN("changetail",c_changetail);
+ BUILDIN("tails",c_tails);
+ BUILDIN("record",c_record);
+ BUILDIN("rawrecord",c_rawrecord);
+ BUILDIN("leettail",c_leettail);
+ BUILDIN("leetuntail",c_leetuntail);
+ BUILDIN("leetappend",c_leetappend);
+ BUILDIN("untail",c_untail);
+ BUILDIN("say",c_say);
+ BUILDIN("id",c_id);
+ BUILDIN("kill",c_kill);
+ BUILDIN("alias",c_alias_h);
+ BUILDIN("aliases",c_aliases_h);
mode_magic=0;
trigger_char='!';
redirect_to_fd=-1;
@@ -1047,6 +1104,13 @@ int main(int argc,char *argv[]) {
start_time=time(0);
redo=0;
inittable(&alias,TSIZE);
+ if(getrlimit(RLIMIT_NOFILE,&nofile) == -1) {
+ printf("couldn't get max open files limit.\n");
+ exit(0);
+ } else {
+ maxtails=nofile.rlim_max;
+ tailf=malloc(sizeof(struct tail) * (maxtails + 1));
+ }
myuser=malloc(sizeof(struct user));
myuser->nick=strdup(argc>1?argv[1]:NICK);
myuser->name="I_dunno";
@@ -1069,11 +1133,12 @@ int main(int argc,char *argv[]) {
s=getenv("segserver"); s=s?s:SERVER;
p=getenv("segport"); p=p?p:PORT;
printf("connecting to: %s port %s\n",s,p);
- fd=ircConnect(getenv("segserver")?getenv("segserver"):SERVER,
- getenv("segport")?getenv("segport"):PORT,
- myuser->nick,
- "segfault segfault segfault :segfault");
+ fd=serverConnect(getenv("segserver")?getenv("segserver"):SERVER,
+ getenv("segport")?getenv("segport"):PORT);
+// myuser->nick,
+// "segfault segfault segfault :segfault");
printf("cd %s\n",pwd->pw_dir);
chdir(getenv("seghome")?getenv("seghome"):pwd->pw_dir);
+ prestartup_stuff(fd);
return runit(fd,line_handler,extra_handler);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 08:50:33 +0000