#ifndef lint static char sccsid[] = "@(#)shell.c 4.2 (Berkeley) 05/09/83"; #endif not lint /* ** CALL THE SHELL */ shell() { int i; register int pid; register int sav2, sav3; if (!(pid = fork())) { setuid(getuid()); nice(0); execl("/bin/csh", "-", 0); syserr("cannot execute /bin/csh"); } sav2 = signal(2, 1); sav3 = signal(3, 1); while (wait(&i) != pid) ; signal(2, sav2); signal(3, sav3); }