mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
47 lines
2.6 KiB
C
47 lines
2.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/calls/hefty/mkvarargv.h"
|
|
#include "libc/mem/mem.h"
|
|
|
|
/**
|
|
* Executes program, with custom environment.
|
|
*
|
|
* The current process is replaced with the executed one.
|
|
*
|
|
* @param prog will not be PATH searched, see commandv()
|
|
* @param arg[0] is the name of the program to run
|
|
* @param arg[1,n-3] optionally specify program arguments
|
|
* @param arg[n-2] is NULL
|
|
* @param arg[n-1] is a pointer to a ["key=val",...,NULL] array
|
|
* @return doesn't return on success, otherwise -1 w/ errno
|
|
* @notasyncsignalsafe (TODO)
|
|
*/
|
|
int execle(const char *exe, const char *arg,
|
|
... /*, NULL, char *const envp[] */) {
|
|
va_list va;
|
|
void *argv;
|
|
va_start(va, arg);
|
|
if ((argv = mkvarargv(arg, va))) {
|
|
execve(exe, argv, va_arg(va, char *const *));
|
|
free(argv);
|
|
}
|
|
va_end(va);
|
|
return -1;
|
|
}
|