1 // $Id: exec-remount.c 2776 2008-08-25 22:57:09Z dhozac $ --*- c -*--
3 // Copyright (C) 2008 Daniel Hokka Zakrisson
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation; version 2 of the License.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
31 #include <sys/mount.h>
34 // Make this version of util-vserver build in one of PL's builds with an old mount.h
35 #if defined(_SYS_MOUNT_H) && !defined(MNT_DETACH)
39 #define ENSC_WRAPPERS_PREFIX "exec-remount: "
40 #define ENSC_WRAPPERS_MOUNT 1
41 #define ENSC_WRAPPERS_UNISTD 1
44 #define CMD_HELP 0x1000
45 #define CMD_VERSION 0x1001
46 #define CMD_MTAB 0x2001
48 static struct option const
50 { "help", no_argument, 0, CMD_HELP },
51 { "version", no_argument, 0, CMD_VERSION },
52 { "mtab", required_argument, 0, CMD_MTAB },
56 int wrapper_exit_code = 255;
59 showHelp(int fd, char const *cmd, int res)
61 WRITE_MSG(fd, "Usage:\n ");
63 WRITE_MSG(fd, " [--mtab <file>] <mount points>* -- <command> <args>*\n");
65 "Please report bugs to " PACKAGE_BUGREPORT "\n");
73 "exec-remount " VERSION " -- remounts specified mount points and executes a program\n"
74 "This program is part of " PACKAGE_STRING "\n\n"
75 "Copyright (c) 2008 Daniel Hokka Zakrisson\n"
76 VERSION_COPYRIGHT_DISCLAIMER);
81 do_remount(char const *mount)
83 /* FIXME: Read this from mtab */
84 if (strcmp(mount, "/proc") == 0)
85 Emount("proc", "proc", "proc", 0, NULL);
86 else if (strcmp(mount, "/sys") == 0)
87 Emount("sysfs", "sys", "sysfs", 0, NULL);
89 WRITE_MSG(2, ENSC_WRAPPERS_PREFIX "unknown mount point: ");
95 int main(int argc, char *argv[])
98 char const *mtab = "/etc/mtab";
101 int c = getopt_long(argc, argv, "+", CMDLINE_OPTIONS, 0);
105 case CMD_HELP : showHelp(1, argv[0], 0);
106 case CMD_VERSION : showVersion();
107 case CMD_MTAB : mtab = optarg; break;
108 default : showHelp(2, argv[0], 1);
112 for (i = optind; argv[i] != NULL && strcmp(argv[i], "--") != 0; i++) {
113 if (vc_isSupported(vcFEATURE_PIDSPACE)) {
114 /* + 1 to strip the leading / */
115 if (umount2(argv[i] + 1, MNT_DETACH) == 0)
121 showHelp(2, argv[0], 1);
124 EexecvpD(argv[i], argv+i);