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xbps-src: added license to xbps-src-capchroot helper.

This commit is contained in:
Juan RP 2011-07-06 17:07:31 +02:00
parent b29e482767
commit 1004b0cc61
1 changed files with 31 additions and 2 deletions
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33
xbps-src/libexec/chroot.c
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@ -1,8 +1,35 @@
/*-
* Copyright (c) 2010-2011 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* chroot() to target directory by using the CAP_CHROOT
* capability set on the file.
*
* Juan RP - 2010/04/26 - Public Domain.
* As security measure it only allows to chroot when the target directory
* is owned by the same user executing the process and it has read/write
* permission on it.
*/
#include <stdio.h>
#include <stdlib.h>
@ -15,10 +42,12 @@
#include <sys/mount.h>
#include <sys/capability.h>
#define _PROGNAME "xbps-src-capchroot"
void
usage(void)
{
fprintf(stderr, "Usage: xbps-src-capchroot <newroot> <args>\n");
fprintf(stderr, "Usage: %s <newroot> <args>\n", _PROGNAME);
exit(EXIT_FAILURE);
}