blob: cef6cb0adbc61651cdc2ae9f280b614fbc198cd1 (
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
|
/**************************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#include <caml/config.h>
#ifdef HAS_UNISTD
#include <unistd.h>
#endif
#include <sys/types.h>
#ifdef HAS_GETAUXVAL
#include <sys/auxv.h>
#endif
#include <caml/mlvalues.h>
#include <caml/alloc.h>
extern char ** environ;
CAMLprim value caml_unix_environment_unsafe(value unit)
{
if (environ != NULL) {
return caml_copy_string_array((const char**)environ);
} else {
return Atom(0);
}
}
static char **secure_environ(void)
{
#ifdef HAS_GETAUXVAL
if (!getauxval(AT_SECURE))
return environ;
else
return NULL;
#elif defined(HAS_ISSETUGID)
if (!issetugid ())
return environ;
else
return NULL;
#else
if (geteuid () == getuid () && getegid () == getgid ())
return environ;
else
return NULL;
#endif
}
CAMLprim value caml_unix_environment(value unit)
{
char **e = secure_environ();
if (e != NULL) {
return caml_copy_string_array((const char**)e);
} else {
return Atom(0);
}
}
|
