Dumpfd.c dumps all process file descriptors to stdin. Based on dumpenv.c.
939194707c511f9499ce67f01c1e9d6b4f813addc5aac44b5612a41d4ed0d8be
/* [DUMPFD: system tool -- version 1.1 ] *************************************
* system tool based on dumpenv.c, something made briefly before this. *
* dumps all process file descriptors to stdin. *
* *
* AUTHOR: *
* v9/vade79@realhalo.org, realhalo.org. *
* *
* dumpfd.c: program source code to dumpfd, for linux. (130l!262w!3681b) *
*****************************************************************************/
#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#include <glob.h>
#include <pwd.h>
#include <grp.h>
int total=0;
char id[]="$Id: dumpfd.c,v 1.1 2001/04/05 20:22:21 EST vade79 Exp $";
int main(){
int i=0;
glob_t gb;
setuid(geteuid());
if(getuid())
printe("dumpfd must run as root to process correctly",1);
gb.gl_offs=1;
glob("/proc/*",0,0,&gb);
while(gb.gl_pathc>i){
if(atoi((char *)basename(gb.gl_pathv[i]))
||!strcmp((char *)basename(gb.gl_pathv[i]),"0"))
getfd((char *)basename(gb.gl_pathv[i]));
i++;
}
globfree(&gb);
printf("total fd count: %d.\n",total);
exit(0);
}
int getfd(char *pid){
int i=0;
int chr=0;
char fddir[12+strlen(pid)];
char cmdfile[15+strlen(pid)];
char cmd[256];
char ln[4096];
char filetype[5];
char owner[8];
char group[8];
FILE *fd;
struct stat mod;
struct passwd *pwd;
struct group *grp;
glob_t gbfd;
sprintf(fddir,"/proc/%s/fd/*",pid);
sprintf(cmdfile,"/proc/%s/cmdline",pid);
if(!(fd=fopen(cmdfile,"r")))
printe("command line of the pid doesn't exist or isn't readable",0);
else{
bzero(cmd,sizeof(cmd));
while((chr=fgetc(fd))!=0x0&&chr!=0x20&&chr!=EOF)
if(isprint(chr))
if(i<sizeof(cmd))
cmd[i++]=chr;
}
fclose(fd);
if(!strlen(cmd)){
bzero(cmd,sizeof(cmd));
sprintf(cmd,"UNKNOWN");
}
else
cmd[i]=0x0;
gbfd.gl_offs=1;
switch(glob(fddir,0,0,&gbfd)){
case 1:
printe("getfd(): glob had a memory error",0);
break;
case 2:
printe("getfd(): glob had a read error",0);
break;
}
if(!gbfd.gl_pathc)
printf("*%c%s%c%.7s%c%.7s%c%.7s <no file descriptors currently in use>\n",
0x9,pid,0x9,owner,0x9,group,0x9,basename(cmd));
for(i=0;gbfd.gl_pathc>i;i++){
stat(gbfd.gl_pathv[i],&mod);
if(!(pwd=getpwuid(mod.st_uid)))
sprintf(owner,"%u",mod.st_uid);
else{
if(strlen(pwd->pw_name))
sprintf(owner,"%.7s",pwd->pw_name);
else
sprintf(owner,"%u",pwd->pw_uid);
}
if(!(grp=getgrgid(mod.st_gid)))
sprintf(group,"%u",mod.st_gid);
else{
if(strlen(pwd->pw_name))
sprintf(group,"%.7s",grp->gr_name);
else
sprintf(group,"%u",grp->gr_gid);
}
bzero(ln,sizeof(ln));
if(!readlink(gbfd.gl_pathv[i],ln,sizeof(ln)))
sprintf(ln,"UNKNOWN");
if(S_ISREG(mod.st_mode))
sprintf(filetype,"file");
else if(S_ISLNK(mod.st_mode))
sprintf(filetype,"link");
else if(S_ISDIR(mod.st_mode))
sprintf(filetype,"dir");
else if(S_ISCHR(mod.st_mode))
sprintf(filetype,"cdev");
else if(S_ISBLK(mod.st_mode))
sprintf(filetype,"bdev");
else if(S_ISFIFO(mod.st_mode))
sprintf(filetype,"fifo");
else if(S_ISSOCK(mod.st_mode))
sprintf(filetype,"sock");
else
sprintf(filetype,"none");
total++;
printf("%d%c%s%c%.7s%c%.7s%c%.7s%c%s%c%s%c%.24s\n",total,0x9,pid,0x9,owner,
0x9,group,0x9,basename(cmd),0x9,basename(gbfd.gl_pathv[i]),0x9,filetype,0x9,
strlen(ln)?ln:"UNKNOWN");
}
globfree(&gbfd);
return(0);
}
int printe(char *err,int quit){
printf("error: %s.\n",err);
if(quit)
exit(1);
}