blob: aa4ea3590bcd31043c93b89368ea8da306d109ee (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/*******************************************************************/
/* slibtool: a strong libtool implementation, written in C */
/* Copyright (C) 2016--2024 SysDeer Technologies, LLC */
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
#ifndef SLIBTOOL_SPAWN_IMPL_H
#define SLIBTOOL_SPAWN_IMPL_H
#include <limits.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdbool.h>
#include <errno.h>
#include <sys/wait.h>
#ifndef PATH_MAX
#define PATH_MAX (_XOPEN_PATH_MAX < 4096) ? 4096 : _XOPEN_PATH_MAX
#endif
#ifndef SLBT_USE_FORK
#ifndef SLBT_USE_VFORK
#ifndef SLBT_USE_POSIX_SPAWN
#define SLBT_USE_POSIX_SPAWN
#endif
#endif
#endif
#ifdef SLBT_USE_POSIX_SPAWN
#include <spawn.h>
#endif
#ifdef __midipix__
static pid_t slbt_fork(void) {return vfork();}
#else
static pid_t slbt_fork(void) {return fork();}
#endif
static inline int slbt_spawn(
struct slbt_exec_ctx * ectx,
bool fwait)
{
pid_t pid;
#ifdef SLBT_USE_POSIX_SPAWN
if (posix_spawnp(
&pid,
ectx->program,
0,0,
ectx->argv,
ectx->envp))
pid = -1;
#else
#ifdef SLBT_USE_FORK
pid = fork();
#else
pid = vfork();
#endif
#endif
(void)slbt_fork;
if (pid < 0) {
ectx->pid = pid;
ectx->exitcode = errno;
return -1;
}
if (pid == 0) {
execvp(
ectx->program,
ectx->argv);
_exit(errno);
}
errno = 0;
ectx->pid = pid;
if (fwait)
return waitpid(
pid,
&ectx->exitcode,
0);
return 0;
}
#endif
|
