- /* See notes in system.c for why this is needed. */
- for (i=1; i<=8*__SYSCALL_SSLEN; i++) {
- struct sigaction sa;
- __libc_sigaction(i, 0, &sa);
- if (sa.sa_handler!=SIG_IGN && sa.sa_handler!=SIG_DFL) {
- sa.sa_handler = SIG_DFL;
- __libc_sigaction(i, &sa, 0);
- }
- }
- if (dup2(p[1-op], 1-op) < 0) _exit(127);
- fcntl(1-op, F_SETFD, 0);
- if (p[0] != 1-op) __syscall(SYS_close, p[0]);
- if (p[1] != 1-op) __syscall(SYS_close, p[1]);
- sigprocmask(SIG_SETMASK, &old, 0);
- execl("/bin/sh", "sh", "-c", cmd, (char *)0);
- _exit(127);