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
|
/* $Id: /var/cvsroot/gentoo-src/portage/src/python-missingos/missingos.c,v 1.5.2.1 2004/10/22 16:53:30 carpaski Exp $ */
#include "Python.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
static char missingos_lchown__doc__[];
static PyObject * missingos_lchown(PyObject *self, PyObject *args);
static char missingos_mknod__doc__[];
static PyObject * missingos_mknod(PyObject *self, PyObject *args);
static char missingos__doc__[] = "Provide some operations that\
are missing from the standard os / posix modules.";
static PyMethodDef missingos_methods[] = {
{"lchown", missingos_lchown, METH_VARARGS, missingos_lchown__doc__},
{"mknod", missingos_mknod, METH_VARARGS, missingos_mknod__doc__},
{NULL, NULL} /* sentinel */
};
static PyObject *
posix_error_with_allocated_filename(char* name)
{
PyObject *rc = PyErr_SetFromErrnoWithFilename(PyExc_OSError, name);
PyMem_Free(name);
return rc;
}
static char missingos_lchown__doc__[] =
"lchown(path, uid, gid) -> None\n\
Change the owner and group id of path to the numeric uid and gid.";
static PyObject *
missingos_lchown(PyObject *self, PyObject *args) {
char *path = NULL;
int uid, gid;
int res;
if (!PyArg_ParseTuple(args, "etii:lchown",
Py_FileSystemDefaultEncoding, &path,
&uid, &gid))
return NULL;
res = lchown(path, (uid_t) uid, (gid_t) gid);
if (res < 0)
return posix_error_with_allocated_filename(path);
PyMem_Free(path);
Py_INCREF(Py_None);
return Py_None;
}
static char missingos_mknod__doc__[] =
"mknod(path, type, major, minor [, mode=0600 ]) -> None\n\
Create a special file. Mode fixed at 0600.\
Note that for type 'p' major and minor are ignored.\
";
static PyObject *
missingos_mknod(PyObject *self, PyObject *args) {
char *path = NULL;
char *type = NULL;
int major = 0;
int minor = 0;
mode_t real_mode;
dev_t real_dev;
int mode = 0600;
int res;
if (!PyArg_ParseTuple(args, "etsii|i:mknod",
Py_FileSystemDefaultEncoding, &path,
&type, &major, &minor, &mode))
return NULL;
/* type can be *one* of b, c, u, p */
/* major/minor are forbidden for p, reqd otherwise */
if (!strcmp(type, "p")) {
/* pipe */
if (major != 0 || minor != 0) {
return NULL;
}
real_mode = S_IFIFO;
major = 0;
minor = 0;
} else if (!strcmp(type, "b")) {
/* block */
real_mode = S_IFBLK;
} else if (!strcmp(type, "c")) {
real_mode = S_IFCHR;
/* char */
} else if (!strcmp(type, "u")) {
real_mode = S_IFCHR;
/* unbuffered char */
} else {
/* error */
PyErr_SetString(PyExc_ValueError, "type must be one of p,b,c,u");
return NULL;
}
real_mode |= mode;
real_dev = (major << 8) | minor;
/* use mode to modify real_mode */
res = mknod(path, real_mode, real_dev);
if (res < 0)
return posix_error_with_allocated_filename(path);
PyMem_Free(path);
Py_INCREF(Py_None);
return Py_None;
}
DL_EXPORT(void)
initmissingos(void) {
PyObject *m;
m = Py_InitModule4("missingos", missingos_methods,
missingos__doc__, (PyObject *)NULL,
PYTHON_API_VERSION);
}
|
GitWeb