diff options
Diffstat (limited to 'src/shared/dev-setup.c')
-rw-r--r-- | src/shared/dev-setup.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/shared/dev-setup.c b/src/shared/dev-setup.c new file mode 100644 index 0000000000..0b3d648acb --- /dev/null +++ b/src/shared/dev-setup.c @@ -0,0 +1,65 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2010-2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <sys/stat.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include <unistd.h> + +#include "dev-setup.h" +#include "log.h" +#include "macro.h" +#include "util.h" +#include "label.h" + +static int symlink_and_label(const char *old_path, const char *new_path) { + int r; + + assert(old_path); + assert(new_path); + + r = label_context_set(new_path, S_IFLNK); + if (r < 0) + return r; + + if (symlink(old_path, new_path) < 0) + r = -errno; + + label_context_clear(); + + return r; +} + +void dev_setup(void) { + const char *j, *k; + + static const char symlinks[] = + "/proc/kcore\0" "/dev/core\0" + "/proc/self/fd\0" "/dev/fd\0" + "/proc/self/fd/0\0" "/dev/stdin\0" + "/proc/self/fd/1\0" "/dev/stdout\0" + "/proc/self/fd/2\0" "/dev/stderr\0"; + + NULSTR_FOREACH_PAIR(j, k, symlinks) + symlink_and_label(j, k); +} |