[Clamav-users] clamav_rmdirs problem

[Brian J. France]

I am hooking clamscan into a procmail filter like this:

:0
CLAMAV=|/usr/bin/clamscan --disable-summary --stdout --mbox -
:0
* CLAMAV ?? .*: \/.* FOUND
{
  :0 fhw
  | /usr/bin/formail -a"X-ClamAV: ${MATCH}"
}
But clamscan seems to hang and never return.  From strace it seem to be 
stuck in a loop:

rmdir("/tmp/3937bd6e877ca548")          = -1 ENOTEMPTY (Directory not 
empty)
getdents(3, /* 3 entries */, 3933)      = 60
lstat("/tmp/3937bd6e877ca548/document.scrIWpKmX", 0xbffff928) = -1 
EACCES (Permission denied)
getdents(3, /* 0 entries */, 3933)      = 0
lseek(3, 0, SEEK_SET)                   = 0
stat("/tmp/3937bd6e877ca548", {st_mode=S_IFDIR|0600, st_size=4096, 
...}) = 0
rmdir("/tmp/3937bd6e877ca548")          = -1 ENOTEMPTY (Directory not 
empty)
getdents(3, /* 3 entries */, 3933)      = 60
lstat("/tmp/3937bd6e877ca548/document.scrIWpKmX", 0xbffff928) = -1 
EACCES (Permission denied)
getdents(3, /* 0 entries */, 3933)      = 0
lseek(3, 0, SEEK_SET)                   = 0
stat("/tmp/3937bd6e877ca548", {st_mode=S_IFDIR|0600, st_size=4096, 
...}) = 0
--- repeat ---

It seems to be in a looping while cleaning up:

sudo ls -alF /tmp/3937bd6e877ca548/
total 36
drw-------   2 clamav   clamav       4096 Feb 17 10:57 ./
drwxrwxrwt   6 root     root         8192 Feb 17 12:32 ../
-rwx------   1 root     root        22529 Feb 17 10:57 
document.scrIWpKmX*

In treewalk.c, if I comment out the changing of the user/group it all 
works:

int clamav_rmdirs(const char *dir)
{
#ifndef C_CYGWIN
        struct passwd *user;
#endif
        pid_t pid;
        int status;
    switch(pid = fork()) {
        case -1:
            return -1;
        case 0:
          /*
#ifndef C_CYGWIN
            if(!getuid()) {
                if((user = getpwnam(UNPUSER)) == NULL)
                    return -3;
                setgroups(1, &user->pw_gid);
                setgid(user->pw_gid);
                setuid(user->pw_uid);
            }
#endif
          */
            rmdirs(dir);
            exit(0);
            break;
        default:
            waitpid(pid, &status, 0);
            if(WIFEXITED(status))
                return 0;
            else
                return -2;
    }
}
I am pretty sure the bug is writing out document.scrIWpKmX as the wrong 
user/group and not the cleanup code, right?

This ring a bell with anybody?  Do I have something configured wrong?

Thanks,

Brian



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