Mercurial > cpython-lru_cache-weakref

annotate Modules/pwdmodule.c @ 58765:2ba7677bfa95 legacy-trunk

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testCopysign was defined twice in test_math; combine the definitions
author Mark Dickinson <dickinsm@gmail.com>
date Sat, 06 Feb 2010 23:11:25 +0000
parents 5dec8a12e455
children fd25030223b0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 #include "structseq.h"
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6
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7 #include <sys/types.h>
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8 #include <pwd.h>
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9
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10 static PyStructSequence_Field struct_pwd_type_fields[] = {
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11 {"pw_name", "user name"},
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12 {"pw_passwd", "password"},
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13 {"pw_uid", "user id"},
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14 {"pw_gid", "group id"},
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15 {"pw_gecos", "real name"},
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16 {"pw_dir", "home directory"},
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17 {"pw_shell", "shell program"},
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18 {0}
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19 };
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20
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21 PyDoc_STRVAR(struct_passwd__doc__,
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22 "pwd.struct_passwd: Results from getpw*() routines.\n\n\
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23 This object may be accessed either as a tuple of\n\
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24 (pw_name,pw_passwd,pw_uid,pw_gid,pw_gecos,pw_dir,pw_shell)\n\
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25 or via the object attributes as named in the above tuple.");
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26
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27 static PyStructSequence_Desc struct_pwd_type_desc = {
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28 "pwd.struct_passwd",
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29 struct_passwd__doc__,
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30 struct_pwd_type_fields,
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31 7,
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32 };
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33
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34 PyDoc_STRVAR(pwd__doc__,
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35 "This module provides access to the Unix password database.\n\
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36 It is available on all Unix versions.\n\
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37 \n\
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38 Password database entries are reported as 7-tuples containing the following\n\
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39 items from the password database (see `<pwd.h>'), in order:\n\
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40 pw_name, pw_passwd, pw_uid, pw_gid, pw_gecos, pw_dir, pw_shell.\n\
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41 The uid and gid items are integers, all others are strings. An\n\
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42 exception is raised if the entry asked for cannot be found.");
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43
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44
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45 static int initialized;
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46 static PyTypeObject StructPwdType;
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47
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48 static void
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49 sets(PyObject *v, int i, char* val)
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50 {
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51 if (val)
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52 PyStructSequence_SET_ITEM(v, i, PyString_FromString(val));
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53 else {
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54 PyStructSequence_SET_ITEM(v, i, Py_None);
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55 Py_INCREF(Py_None);
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56 }
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57 }
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58
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59 static PyObject *
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60 mkpwent(struct passwd *p)
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61 {
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62 int setIndex = 0;
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63 PyObject *v = PyStructSequence_New(&StructPwdType);
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64 if (v == NULL)
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65 return NULL;
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66
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67 #define SETI(i,val) PyStructSequence_SET_ITEM(v, i, PyInt_FromLong((long) val))
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68 #define SETS(i,val) sets(v, i, val)
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69
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70 SETS(setIndex++, p->pw_name);
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71 #ifdef __VMS
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72 SETS(setIndex++, "");
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73 #else
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74 SETS(setIndex++, p->pw_passwd);
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75 #endif
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76 SETI(setIndex++, p->pw_uid);
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77 SETI(setIndex++, p->pw_gid);
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78 #ifdef __VMS
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79 SETS(setIndex++, "");
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80 #else
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81 SETS(setIndex++, p->pw_gecos);
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82 #endif
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83 SETS(setIndex++, p->pw_dir);
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84 SETS(setIndex++, p->pw_shell);
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85
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86 #undef SETS
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87 #undef SETI
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88
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89 if (PyErr_Occurred()) {
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90 Py_XDECREF(v);
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91 return NULL;
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92 }
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93
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94 return v;
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95 }
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96
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97 PyDoc_STRVAR(pwd_getpwuid__doc__,
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98 "getpwuid(uid) -> (pw_name,pw_passwd,pw_uid,\n\
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99 pw_gid,pw_gecos,pw_dir,pw_shell)\n\
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100 Return the password database entry for the given numeric user ID.\n\
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101 See pwd.__doc__ for more on password database entries.");
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102
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103 static PyObject *
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104 pwd_getpwuid(PyObject *self, PyObject *args)
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105 {
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106 unsigned int uid;
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107 struct passwd *p;
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108 if (!PyArg_ParseTuple(args, "I:getpwuid", &uid))
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109 return NULL;
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110 if ((p = getpwuid(uid)) == NULL) {
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111 PyErr_Format(PyExc_KeyError,
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112 "getpwuid(): uid not found: %d", uid);
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113 return NULL;
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114 }
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115 return mkpwent(p);
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116 }
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117
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118 PyDoc_STRVAR(pwd_getpwnam__doc__,
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119 "getpwnam(name) -> (pw_name,pw_passwd,pw_uid,\n\
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120 pw_gid,pw_gecos,pw_dir,pw_shell)\n\
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121 Return the password database entry for the given user name.\n\
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122 See pwd.__doc__ for more on password database entries.");
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123
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124 static PyObject *
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125 pwd_getpwnam(PyObject *self, PyObject *args)
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126 {
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127 char *name;
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128 struct passwd *p;
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129 if (!PyArg_ParseTuple(args, "s:getpwnam", &name))
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130 return NULL;
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131 if ((p = getpwnam(name)) == NULL) {
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132 PyErr_Format(PyExc_KeyError,
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133 "getpwnam(): name not found: %s", name);
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134 return NULL;
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135 }
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136 return mkpwent(p);
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137 }
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138
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139 #ifdef HAVE_GETPWENT
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140 PyDoc_STRVAR(pwd_getpwall__doc__,
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141 "getpwall() -> list_of_entries\n\
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142 Return a list of all available password database entries, \
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143 in arbitrary order.\n\
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144 See pwd.__doc__ for more on password database entries.");
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145
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146 static PyObject *
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147 pwd_getpwall(PyObject *self)
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148 {
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149 PyObject *d;
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150 struct passwd *p;
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151 if ((d = PyList_New(0)) == NULL)
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152 return NULL;
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153 #if defined(PYOS_OS2) && defined(PYCC_GCC)
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154 if ((p = getpwuid(0)) != NULL) {
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155 #else
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156 setpwent();
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157 while ((p = getpwent()) != NULL) {
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158 #endif
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159 PyObject *v = mkpwent(p);
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160 if (v == NULL || PyList_Append(d, v) != 0) {
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161 Py_XDECREF(v);
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162 Py_DECREF(d);
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163 endpwent();
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164 return NULL;
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165 }
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166 Py_DECREF(v);
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167 }
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168 endpwent();
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169 return d;
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170 }
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171 #endif
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172
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173 static PyMethodDef pwd_methods[] = {
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174 {"getpwuid", pwd_getpwuid, METH_VARARGS, pwd_getpwuid__doc__},
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175 {"getpwnam", pwd_getpwnam, METH_VARARGS, pwd_getpwnam__doc__},
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176 #ifdef HAVE_GETPWENT
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177 {"getpwall", (PyCFunction)pwd_getpwall,
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178 METH_NOARGS, pwd_getpwall__doc__},
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179 #endif
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180 {NULL, NULL} /* sentinel */
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181 };
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182
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183 PyMODINIT_FUNC
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184 initpwd(void)
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185 {
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186 PyObject *m;
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187 m = Py_InitModule3("pwd", pwd_methods, pwd__doc__);
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188 if (m == NULL)
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189 return;
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190
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191 if (!initialized)
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192 PyStructSequence_InitType(&StructPwdType,
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193 &struct_pwd_type_desc);
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194 Py_INCREF((PyObject *) &StructPwdType);
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195 PyModule_AddObject(m, "struct_passwd", (PyObject *) &StructPwdType);
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196 /* And for b/w compatibility (this was defined by mistake): */
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197 Py_INCREF((PyObject *) &StructPwdType);
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198 PyModule_AddObject(m, "struct_pwent", (PyObject *) &StructPwdType);
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199 initialized = 1;
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200 }