From owner-svn-soc-all@FreeBSD.ORG  Tue Jul  9 07:10:46 2013
Return-Path: <owner-svn-soc-all@FreeBSD.ORG>
Delivered-To: svn-soc-all@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by hub.freebsd.org (Postfix) with ESMTP id 2533E3AA
 for <svn-soc-all@FreeBSD.org>; Tue,  9 Jul 2013 07:10:46 +0000 (UTC)
 (envelope-from dpl@FreeBSD.org)
Received: from socsvn.freebsd.org (socsvn.freebsd.org
 [IPv6:2001:1900:2254:206a::50:2])
 by mx1.freebsd.org (Postfix) with ESMTP id 16BA11C5C
 for <svn-soc-all@FreeBSD.org>; Tue,  9 Jul 2013 07:10:46 +0000 (UTC)
Received: from socsvn.freebsd.org ([127.0.1.124])
 by socsvn.freebsd.org (8.14.7/8.14.7) with ESMTP id r697AjpJ016292
 for <svn-soc-all@FreeBSD.org>; Tue, 9 Jul 2013 07:10:45 GMT
 (envelope-from dpl@FreeBSD.org)
Received: (from www@localhost)
 by socsvn.freebsd.org (8.14.7/8.14.6/Submit) id r697Ajsx016282
 for svn-soc-all@FreeBSD.org; Tue, 9 Jul 2013 07:10:45 GMT
 (envelope-from dpl@FreeBSD.org)
Date: Tue, 9 Jul 2013 07:10:45 GMT
Message-Id: <201307090710.r697Ajsx016282@socsvn.freebsd.org>
X-Authentication-Warning: socsvn.freebsd.org: www set sender to
 dpl@FreeBSD.org using -f
From: dpl@FreeBSD.org
To: svn-soc-all@FreeBSD.org
Subject: socsvn commit: r254450 - soc2013/dpl
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-soc-all@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: SVN commit messages for the entire Summer of Code repository
 <svn-soc-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-soc-all>,
 <mailto:svn-soc-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-soc-all>
List-Post: <mailto:svn-soc-all@freebsd.org>
List-Help: <mailto:svn-soc-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-soc-all>,
 <mailto:svn-soc-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 09 Jul 2013 07:10:46 -0000

Author: dpl
Date: Tue Jul  9 07:10:45 2013
New Revision: 254450
URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=254450

Log:
  This file will hold my own functions and notes when porting applications to Capsicum.
  

Added:
  soc2013/dpl/functions.c

Added: soc2013/dpl/functions.c
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ soc2013/dpl/functions.c	Tue Jul  9 07:10:45 2013	(r254450)
@@ -0,0 +1,46 @@
+void
+limitfd(int fd)
+{
+   cap_rights_t rights;
+
+   if (fd == OUT_FILENO)
+      rights = CAP_READ|CAP_FSTAT|CAP_WRITE|CAP_FCHMOD|CAP_FCHOWN|CAP_FUTIMES;
+   else if (fd == IN_FILENO)
+      rights = CAP_WRITE|CAP_READ|CAP_FSTAT;
+   else if (fd == STDERR_FILENO)
+      rights = CAP_WRITE;
+   else if ( fd == cwd )
+      rights = CAP_UNLINKAT|CAP_LOOKUP;
+
+   if (cap_rights_limit(fd, rights) < 0 && errno != ENOSYS){
+      fprintf ( stderr, "%s: Couldn't limit rights for descriptor %d: %s.\n", 
+         progName, fd, strerror(errno));
+      setExit(1);
+      exit(exitValue);
+   }
+}
+
+extern void
+cap_init()
+{
+	if (cap_rights_limit(STDIN_FILENO, CAP_READ) < 0 && errno != ENOSYS){
+		message_error("%d: %s", STDIN_FILENO, strerror(errno));
+		exit(E_ERROR);
+	}
+
+	if (cap_rights_limit(STDOUT_FILENO, CAP_WRITE) < 0 && errno != ENOSYS){
+		message_error("%d: %s", STDOUT_FILENO, strerror(errno));
+		exit(E_ERROR);
+	}
+
+	if (cap_rights_limit(STDERR_FILENO, CAP_WRITE) < 0 && errno != ENOSYS){
+		message_error("%d: %s", STDERR_FILENO, strerror(errno));
+		exit(E_ERROR);
+	}
+
+	if (cap_enter() < 0 && errno != ENOSYS){
+		message_error("cap_enter: %s", strerror(errno));
+		exit(E_ERROR);
+	}
+	return;
+}
\ No newline at end of file