3 // Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
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 showHelp(int fd, char const *cmd, int exit_code)
33 VSERVER_DECLARE_CMD(cmd);
35 WRITE_MSG(fd, "Usage: ");
38 " <xid> <cmd> <args*>\n"
40 "Enters namespace of context <xid> and executes <cmd> there.\n"
42 "Report bugs to " PACKAGE_BUGREPORT "\n");
51 "enter-namespace " VERSION " -- enters namespaces and executes programs there\n"
52 "This program is part of " PACKAGE_STRING "\n"
53 "Copyright (C) 2003 Enrico Scholz\n"
54 VERSION_COPYRIGHT_DISCLAIMER);
58 int main(int argc, char *argv[])
60 if (argc==1) showHelp(2, argv[0], 255);
61 if (!strcmp(argv[1], "--help")) showHelp(1, argv[0], 0);
62 if (!strcmp(argv[1], "--version")) showVersion();
63 if (!strcmp(argv[1], "--")) { ++argv; --argc; }
66 WRITE_MSG(2, "No context and/or command specified; try '--help' for more information\n");
70 if (vc_enter_namespace(atoi(argv[1]))==-1) {
71 perror("enter-namespace: vc_enter_namespace()");
75 execvp(argv[2], argv+2);
76 perror("enter-namespace: execvp()");