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/*********************************************************
* Copyright (C) 2007 VMware, Inc. All rights reserved.
*
* This program 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 version 2.1 and no later version.
*
* This program 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 Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* wrapper.c --
*
* Platform dependent code for the VMware User Agent setuid wrapper.
*/
#include <sys/types.h>
#include <sys/systeminfo.h>
#include <errno.h>
#include <strings.h>
#include <unistd.h>
#include "wrapper.h"
/*
* Global functions
*/
#ifdef USES_LOCATIONS_DB
/*
*-----------------------------------------------------------------------------
*
* BuildExecPath --
*
* Mount the VMBlock file system.
*
* Results:
* TRUE on success, FALSE otherwise
*
* Side effects:
* None.
*
*-----------------------------------------------------------------------------
*/
Bool
BuildExecPath(char *execPath, // OUT: Path to executable for isaexec()
size_t execPathSize) // IN : size of execPath buffer
{
/*
* The locations database is the only path that's fixed, and it contains the
* paths to all the other paths selected during Tools configuration. The
* locations database file is only writable by root, so we can trust it.
*/
if (!QueryLocationsDB(LOCATIONS_PATH, QUERY_LIBDIR, execPath, execPathSize)) {
Error("could not obtain LIBDIR\n");
return FALSE;
}
/*
* The wrapper script now emulates the work done by the isaexec command hence
* we will simply call execve(2) below and allow the wrapper to do the rest.
*/
if (strlcat(execPath,
"/bin/vmware-user-wrapper", execPathSize) >= execPathSize) {
Error("could not construct program filename\n");
return FALSE;
}
return TRUE;
}
#endif // ifdef USES_LOCATIONS_DB
/*
*----------------------------------------------------------------------------
*
* CompatExec --
*
* Simple platform-dependent isaexec() wrapper.
*
* Results:
* False.
*
* Side effects:
* Ideally, this function should not return.
*
*----------------------------------------------------------------------------
*/
Bool
CompatExec(const char *path, char * const argv[], char * const envp[])
{
execve(path, argv, envp);
return FALSE;
}
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