Mercurial > cpython-lru_cache-weakref

annotate Modules/pwdmodule.c @ 16798:258dcafe2d0b legacy-trunk

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Gustavo Niemeyer <niemeyer@conectiva.com>: Fixed recno support (keys are integers rather than strings). Work around DB bug that cause stdin to be closed by rnopen() when the DB file needed to exist but did not (no longer segfaults). This closes SF tracker patch #403445. Also wrapped some long lines and added whitespace around operators -- FLD.
author Fred Drake <fdrake@acm.org>
date Tue, 27 Feb 2001 18:56:46 +0000
parents 6f6f965c5e2d
children 971ff6b58edb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /* UNIX password file access module */
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3
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4 #include "Python.h"
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5
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6 #include <sys/types.h>
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7 #include <pwd.h>
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8
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9 static char pwd__doc__ [] = "\
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10 This module provides access to the Unix password database.\n\
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11 It is available on all Unix versions.\n\
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12 \n\
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13 Password database entries are reported as 7-tuples containing the following\n\
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14 items from the password database (see `<pwd.h>'), in order:\n\
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15 pw_name, pw_passwd, pw_uid, pw_gid, pw_gecos, pw_dir, pw_shell.\n\
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16 The uid and gid items are integers, all others are strings. An\n\
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17 exception is raised if the entry asked for cannot be found.";
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18
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19
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20 static PyObject *
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21 mkpwent(struct passwd *p)
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22 {
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23 return Py_BuildValue(
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24 "(ssllsss)",
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25 p->pw_name,
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26 p->pw_passwd,
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27 #if defined(NeXT) && defined(_POSIX_SOURCE) && defined(__LITTLE_ENDIAN__)
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28 /* Correct a bug present on Intel machines in NextStep 3.2 and 3.3;
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29 for later versions you may have to remove this */
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30 (long)p->pw_short_pad1, /* ugh-NeXT broke the padding */
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31 (long)p->pw_short_pad2,
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32 #else
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33 (long)p->pw_uid,
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34 (long)p->pw_gid,
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35 #endif
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36 p->pw_gecos,
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37 p->pw_dir,
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38 p->pw_shell);
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39 }
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40
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41 static char pwd_getpwuid__doc__[] = "\
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42 getpwuid(uid) -> entry\n\
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43 Return the password database entry for the given numeric user ID.\n\
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44 See pwd.__doc__ for more on password database entries.";
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45
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46 static PyObject *
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47 pwd_getpwuid(PyObject *self, PyObject *args)
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48 {
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49 int uid;
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50 struct passwd *p;
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51 if (!PyArg_Parse(args, "i", &uid))
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52 return NULL;
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53 if ((p = getpwuid(uid)) == NULL) {
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54 PyErr_SetString(PyExc_KeyError, "getpwuid(): uid not found");
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55 return NULL;
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56 }
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57 return mkpwent(p);
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58 }
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59
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60 static char pwd_getpwnam__doc__[] = "\
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61 getpwnam(name) -> entry\n\
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62 Return the password database entry for the given user name.\n\
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63 See pwd.__doc__ for more on password database entries.";
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64
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65 static PyObject *
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66 pwd_getpwnam(PyObject *self, PyObject *args)
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67 {
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68 char *name;
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69 struct passwd *p;
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70 if (!PyArg_Parse(args, "s", &name))
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71 return NULL;
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72 if ((p = getpwnam(name)) == NULL) {
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73 PyErr_SetString(PyExc_KeyError, "getpwnam(): name not found");
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74 return NULL;
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75 }
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76 return mkpwent(p);
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77 }
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78
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79 #ifdef HAVE_GETPWENT
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80 static char pwd_getpwall__doc__[] = "\
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81 getpwall() -> list_of_entries\n\
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82 Return a list of all available password database entries, \
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83 in arbitrary order.\n\
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84 See pwd.__doc__ for more on password database entries.";
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85
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86 static PyObject *
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87 pwd_getpwall(PyObject *self, PyObject *args)
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88 {
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89 PyObject *d;
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90 struct passwd *p;
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91 if (!PyArg_NoArgs(args))
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92 return NULL;
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93 if ((d = PyList_New(0)) == NULL)
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94 return NULL;
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95 setpwent();
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96 while ((p = getpwent()) != NULL) {
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97 PyObject *v = mkpwent(p);
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98 if (v == NULL || PyList_Append(d, v) != 0) {
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99 Py_XDECREF(v);
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100 Py_DECREF(d);
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101 return NULL;
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102 }
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103 Py_DECREF(v);
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104 }
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105 return d;
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106 }
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107 #endif
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108
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109 static PyMethodDef pwd_methods[] = {
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110 {"getpwuid", pwd_getpwuid, METH_OLDARGS, pwd_getpwuid__doc__},
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111 {"getpwnam", pwd_getpwnam, METH_OLDARGS, pwd_getpwnam__doc__},
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112 #ifdef HAVE_GETPWENT
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113 {"getpwall", pwd_getpwall, METH_OLDARGS, pwd_getpwall__doc__},
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114 #endif
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115 {NULL, NULL} /* sentinel */
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116 };
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117
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118 DL_EXPORT(void)
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119 initpwd(void)
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120 {
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121 Py_InitModule4("pwd", pwd_methods, pwd__doc__,
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122 (PyObject *)NULL, PYTHON_API_VERSION);
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123 }