mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
/*******************************************************************************
|
|
|
|
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
|
|
|
|
This file is part of the Sortix C Library.
|
|
|
|
The Sortix C Library 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, either version 3 of the License, or (at your
|
|
option) any later version.
|
|
|
|
The Sortix C Library 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 GNU Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
execvpe.cpp
|
|
Loads a process image.
|
|
|
|
*******************************************************************************/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#if defined(PLATFORM_X86)
|
|
#define CPUTYPE_STR "i486-sortix"
|
|
#elif defined(PLATFORM_X64)
|
|
#define CPUTYPE_STR "x86_64-sortix"
|
|
#else
|
|
#error No cputype environmental variable provided here.
|
|
#endif
|
|
|
|
// Note that the only PATH variable in Sortix is the one used here.
|
|
extern "C" int execvpe(const char* filename, char* const* argv,
|
|
char* const* envp)
|
|
{
|
|
if ( strchr(filename, '/') )
|
|
return execve(filename, argv, envp);
|
|
size_t filenamelen = strlen(filename);
|
|
const char* PATH = "/" CPUTYPE_STR "/bin";
|
|
size_t pathlen = strlen(PATH);
|
|
char* pathname = (char*) malloc(filenamelen + 1 + pathlen + 1);
|
|
if ( !pathname ) { return -1; }
|
|
stpcpy(stpcpy(stpcpy(pathname, PATH), "/"), filename);
|
|
int result = execve(pathname, argv, envp);
|
|
free(pathname);
|
|
return result;
|
|
}
|