Last change
on this file since 3801 was 821, checked in by Bruno Cornec, 18 years ago |
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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