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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/***********************************************************************/
/* */
/* 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 Library General Public License, with */
/* the special exception on linking described in file ../../LICENSE. */
/* */
/***********************************************************************/
#include <errno.h>
#include <mlvalues.h>
#include <memory.h>
#include <alloc.h>
#include <signals.h>
#include "unixsupport.h"
#include "cst2constr.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <io.h>
#ifndef S_IFLNK
#define S_IFLNK 0
#endif
#ifndef S_IFIFO
#define S_IFIFO 0
#endif
#ifndef S_IFSOCK
#define S_IFSOCK 0
#endif
#ifndef S_IFBLK
#define S_IFBLK 0
#endif
#ifndef EOVERFLOW
#define EOVERFLOW ERANGE
#endif
static int file_kind_table[] = {
S_IFREG, S_IFDIR, S_IFCHR, S_IFBLK, S_IFLNK, S_IFIFO, S_IFSOCK
};
static value stat_aux(int use_64, struct stat *buf)
{
CAMLparam0();
CAMLlocal5(atime, mtime, ctime, offset, v);
atime = copy_double((double) buf->st_atime);
mtime = copy_double((double) buf->st_mtime);
ctime = copy_double((double) buf->st_ctime);
offset = use_64 ? Val_file_offset(buf->st_size) : Val_int (buf->st_size);
v = alloc_small(12, 0);
Field (v, 0) = Val_int (buf->st_dev);
Field (v, 1) = Val_int (buf->st_ino);
Field (v, 2) = cst_to_constr(buf->st_mode & S_IFMT, file_kind_table,
sizeof(file_kind_table) / sizeof(int), 0);
Field (v, 3) = Val_int (buf->st_mode & 07777);
Field (v, 4) = Val_int (buf->st_nlink);
Field (v, 5) = Val_int (buf->st_uid);
Field (v, 6) = Val_int (buf->st_gid);
Field (v, 7) = Val_int (buf->st_rdev);
Field (v, 8) = offset;
Field (v, 9) = atime;
Field (v, 10) = mtime;
Field (v, 11) = ctime;
CAMLreturn(v);
}
CAMLprim value unix_stat(value path)
{
CAMLparam1(path);
int ret;
struct stat buf;
char * p;
p = caml_stat_alloc_string(path);
caml_enter_blocking_section();
ret = stat(p, &buf);
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1) uerror("stat", path);
if (buf.st_size > Max_long && (buf.st_mode & S_IFMT) == S_IFREG)
unix_error(EOVERFLOW, "stat", path);
CAMLreturn(stat_aux(0, &buf));
}
CAMLprim value unix_lstat(value path)
{
CAMLparam1(path);
int ret;
struct stat buf;
char * p;
p = caml_stat_alloc_string(path);
caml_enter_blocking_section();
#ifdef HAS_SYMLINK
ret = lstat(p, &buf);
#else
ret = stat(p, &buf);
#endif
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1) uerror("lstat", path);
if (buf.st_size > Max_long && (buf.st_mode & S_IFMT) == S_IFREG)
unix_error(EOVERFLOW, "lstat", path);
CAMLreturn(stat_aux(0, &buf));
}
CAMLprim value unix_fstat(value fd)
{
int ret;
struct stat buf;
caml_enter_blocking_section();
ret = fstat(Int_val(fd), &buf);
caml_leave_blocking_section();
if (ret == -1) uerror("fstat", Nothing);
if (buf.st_size > Max_long && (buf.st_mode & S_IFMT) == S_IFREG)
unix_error(EOVERFLOW, "fstat", Nothing);
return stat_aux(0, &buf);
}
CAMLprim value unix_stat_64(value path)
{
CAMLparam1(path);
int ret;
struct stat buf;
char * p;
p = caml_stat_alloc_string(path);
caml_enter_blocking_section();
ret = stat(p, &buf);
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1) uerror("stat", path);
CAMLreturn(stat_aux(1, &buf));
}
CAMLprim value unix_lstat_64(value path)
{
CAMLparam1(path);
int ret;
struct stat buf;
char * p;
p = caml_stat_alloc_string(path);
caml_enter_blocking_section();
#ifdef HAS_SYMLINK
ret = lstat(p, &buf);
#else
ret = stat(p, &buf);
#endif
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1) uerror("lstat", path);
CAMLreturn(stat_aux(1, &buf));
}
CAMLprim value unix_fstat_64(value fd)
{
int ret;
struct stat buf;
caml_enter_blocking_section();
ret = fstat(Int_val(fd), &buf);
caml_leave_blocking_section();
if (ret == -1) uerror("fstat", Nothing);
return stat_aux(1, &buf);
}
|