Chrooter

gistfile1.c

#include <stdio.h>
#include <unistd.h>

const char newroot[] = "/home/buildbot_flowbox/jail-" JAIL_NAME;
const char cmd[]     = "/bin/bash";
char *args[2]        = {"--init-file", "/home/buildbot_flowbox/initfile-jail-" JAIL_NAME};

int main(int c, char **v, char **e) {
    int rc; const char *m;
    if ( (m = "chdir" ,rc =  chdir(newroot)  ) == 0
      && (m = "chroot",rc = chroot(newroot)  ) == 0
      && (m = "setuid",rc = setuid(getuid()))  == 0 )
        m="execve", execve(cmd,args,e);
    perror(m);
    return 1;
}