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Last change
on this file since 929 was 821, checked in by Bruno Cornec, 18 years ago |
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Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)
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File size:
1.5 KB
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| 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Rexec program for system have fork() as vfork() with foreground option
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| 4 | *
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| 5 | * Copyright (C) Vladimir N. Oleynik <dzo@simtreas.ru>
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| 6 | * Copyright (C) 2003 Russ Dill <Russ.Dill@asu.edu>
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| 7 | *
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| 8 | * daemon() portion taken from uClibc:
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| 9 | *
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| 10 | * Copyright (c) 1991, 1993
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| 11 | * The Regents of the University of California. All rights reserved.
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| 12 | *
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| 13 | * Modified for uClibc by Erik Andersen <andersee@debian.org>
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| 14 | *
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| 15 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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| 16 | */
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| 17 |
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| 18 | #include <unistd.h>
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| 19 | #include <stdio.h>
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| 20 | #include <fcntl.h>
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| 21 | #include <paths.h>
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| 22 | #include "libbb.h"
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| 23 |
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| 24 |
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| 25 | #ifdef BB_NOMMU
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| 26 | void vfork_daemon_rexec(int nochdir, int noclose,
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| 27 | int argc, char **argv, char *foreground_opt)
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| 28 | {
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| 29 | int fd;
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| 30 | char **vfork_args;
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| 31 | int a = 0;
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| 32 |
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| 33 | setsid();
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| 34 |
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| 35 | if (!nochdir)
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| 36 | chdir("/");
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| 37 |
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| 38 | if (!noclose && (fd = open(bb_dev_null, O_RDWR, 0)) != -1) {
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| 39 | dup2(fd, STDIN_FILENO);
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| 40 | dup2(fd, STDOUT_FILENO);
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| 41 | dup2(fd, STDERR_FILENO);
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| 42 | if (fd > 2)
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| 43 | close(fd);
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| 44 | }
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| 45 |
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| 46 | vfork_args = xcalloc(sizeof(char *), argc + 3);
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| 47 | vfork_args[a++] = "/bin/busybox";
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| 48 | while(*argv) {
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| 49 | vfork_args[a++] = *argv;
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| 50 | argv++;
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| 51 | }
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| 52 | vfork_args[a] = foreground_opt;
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| 53 | switch (vfork()) {
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| 54 | case 0: /* child */
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| 55 | /* Make certain we are not a session leader, or else we
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| 56 | * might reacquire a controlling terminal */
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| 57 | if (vfork())
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| 58 | _exit(0);
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| 59 | execv(vfork_args[0], vfork_args);
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| 60 | bb_perror_msg_and_die("execv %s", vfork_args[0]);
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| 61 | case -1: /* error */
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| 62 | bb_perror_msg_and_die("vfork");
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| 63 | default: /* parent */
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| 64 | exit(0);
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| 65 | }
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| 66 | }
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| 67 | #endif /* BB_NOMMU */
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