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| @@ -1,323 +1,323 b'' | |||
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1 | 1 | /* |
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2 | 2 | osutil.c - native operating system services |
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3 | 3 | |
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4 | 4 | Copyright 2007 Matt Mackall and others |
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5 | 5 | |
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6 | 6 | This software may be used and distributed according to the terms of |
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7 | 7 | the GNU General Public License, incorporated herein by reference. |
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8 | 8 | */ |
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9 | 9 | |
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10 | 10 | #define _ATFILE_SOURCE |
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11 | 11 | #include <Python.h> |
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12 | 12 | #include <alloca.h> |
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13 | 13 | #include <dirent.h> |
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14 | 14 | #include <fcntl.h> |
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15 | 15 | #include <string.h> |
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16 | 16 | #include <sys/stat.h> |
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17 | 17 | #include <sys/types.h> |
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18 | 18 | #include <unistd.h> |
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19 | 19 | |
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20 | 20 | struct listdir_stat { |
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21 |
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22 |
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21 | PyObject_HEAD | |
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22 | struct stat st; | |
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23 | 23 | }; |
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24 | 24 | |
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25 | 25 | #define listdir_slot(name) \ |
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26 | 26 | static PyObject *listdir_stat_##name(PyObject *self, void *x) \ |
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27 | 27 | { \ |
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28 |
return PyInt_FromLong(((struct listdir_stat *) |
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28 | return PyInt_FromLong(((struct listdir_stat *)self)->st.name); \ | |
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29 | 29 | } |
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30 | 30 | |
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31 | 31 | listdir_slot(st_dev); |
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32 | 32 | listdir_slot(st_mode); |
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33 | 33 | listdir_slot(st_nlink); |
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34 | 34 | listdir_slot(st_size); |
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35 | 35 | listdir_slot(st_mtime); |
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36 | 36 | listdir_slot(st_ctime); |
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37 | 37 | |
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38 | 38 | static struct PyGetSetDef listdir_stat_getsets[] = { |
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39 |
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40 |
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41 |
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42 |
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43 |
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44 |
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45 |
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39 | {"st_dev", listdir_stat_st_dev, 0, 0, 0}, | |
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40 | {"st_mode", listdir_stat_st_mode, 0, 0, 0}, | |
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41 | {"st_nlink", listdir_stat_st_nlink, 0, 0, 0}, | |
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42 | {"st_size", listdir_stat_st_size, 0, 0, 0}, | |
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43 | {"st_mtime", listdir_stat_st_mtime, 0, 0, 0}, | |
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44 | {"st_ctime", listdir_stat_st_ctime, 0, 0, 0}, | |
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45 | {0, 0, 0, 0, 0} | |
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46 | 46 | }; |
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47 | 47 | |
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48 | 48 | static PyObject *listdir_stat_new(PyTypeObject *t, PyObject *a, PyObject *k) |
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49 | 49 | { |
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50 |
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50 | return t->tp_alloc(t, 0); | |
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51 | 51 | } |
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52 | 52 | |
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53 | 53 | static void listdir_stat_dealloc(PyObject *o) |
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54 | 54 | { |
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55 |
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55 | o->ob_type->tp_free(o); | |
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56 | 56 | } |
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57 | 57 | |
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58 | 58 | static PyTypeObject listdir_stat_type = { |
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59 |
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60 |
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61 |
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62 |
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63 |
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95 |
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96 |
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97 |
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59 | PyObject_HEAD_INIT(NULL) | |
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60 | 0, /*ob_size*/ | |
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61 | "osutil.stat", /*tp_name*/ | |
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62 | sizeof(struct listdir_stat), /*tp_basicsize*/ | |
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63 | 0, /*tp_itemsize*/ | |
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64 | (destructor)listdir_stat_dealloc, /*tp_dealloc*/ | |
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65 | 0, /*tp_print*/ | |
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66 | 0, /*tp_getattr*/ | |
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67 | 0, /*tp_setattr*/ | |
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68 | 0, /*tp_compare*/ | |
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69 | 0, /*tp_repr*/ | |
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70 | 0, /*tp_as_number*/ | |
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71 | 0, /*tp_as_sequence*/ | |
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72 | 0, /*tp_as_mapping*/ | |
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73 | 0, /*tp_hash */ | |
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74 | 0, /*tp_call*/ | |
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75 | 0, /*tp_str*/ | |
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76 | 0, /*tp_getattro*/ | |
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77 | 0, /*tp_setattro*/ | |
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78 | 0, /*tp_as_buffer*/ | |
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79 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ | |
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80 | "stat objects", /* tp_doc */ | |
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81 | 0, /* tp_traverse */ | |
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82 | 0, /* tp_clear */ | |
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83 | 0, /* tp_richcompare */ | |
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84 | 0, /* tp_weaklistoffset */ | |
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85 | 0, /* tp_iter */ | |
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86 | 0, /* tp_iternext */ | |
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87 | 0, /* tp_methods */ | |
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88 | 0, /* tp_members */ | |
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89 | listdir_stat_getsets, /* tp_getset */ | |
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90 | 0, /* tp_base */ | |
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91 | 0, /* tp_dict */ | |
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92 | 0, /* tp_descr_get */ | |
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93 | 0, /* tp_descr_set */ | |
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94 | 0, /* tp_dictoffset */ | |
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95 | 0, /* tp_init */ | |
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96 | 0, /* tp_alloc */ | |
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97 | listdir_stat_new, /* tp_new */ | |
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98 | 98 | }; |
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99 | 99 | |
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100 | 100 | static inline int mode_to_kind(int mode) |
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101 | 101 | { |
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102 |
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103 |
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104 |
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105 |
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106 |
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107 |
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108 |
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109 |
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102 | if (S_ISREG(mode)) return S_IFREG; | |
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103 | if (S_ISDIR(mode)) return S_IFDIR; | |
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104 | if (S_ISLNK(mode)) return S_IFLNK; | |
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105 | if (S_ISBLK(mode)) return S_IFBLK; | |
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106 | if (S_ISCHR(mode)) return S_IFCHR; | |
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107 | if (S_ISFIFO(mode)) return S_IFIFO; | |
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108 | if (S_ISSOCK(mode)) return S_IFSOCK; | |
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109 | return mode; | |
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110 | 110 | } |
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111 | 111 | |
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112 | 112 | static PyObject *listdir(PyObject *self, PyObject *args, PyObject *kwargs) |
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113 | 113 | { |
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114 | DIR *dir = NULL; | |
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115 | struct dirent *ent; | |
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116 | PyObject *list = NULL; | |
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117 | PyObject *ctor_args = NULL; | |
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118 | int all_kinds = 1; | |
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119 | char *full_path; | |
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120 | int path_len; | |
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121 | int do_stat; | |
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122 | char *path; | |
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123 | int ret; | |
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124 | ||
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125 | { | |
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126 | 114 | static char *kwlist[] = { "path", "stat", NULL }; |
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127 | 115 | PyObject *statobj = NULL; |
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116 | DIR *dir = NULL; | |
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117 | struct dirent *ent; | |
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118 | PyObject *list = NULL; | |
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119 | PyObject *ctor_args = NULL; | |
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120 | int all_kinds = 1; | |
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121 | char *full_path; | |
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122 | int path_len; | |
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123 | int do_stat; | |
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124 | char *path; | |
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125 | int ret; | |
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126 | ssize_t size; | |
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127 | ssize_t i; | |
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128 | int dfd; | |
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128 | 129 | |
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129 | 130 | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s#|O:listdir", kwlist, |
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130 | 131 | &path, &path_len, &statobj)) |
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131 |
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132 | goto bail; | |
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132 | 133 | |
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133 | 134 | do_stat = statobj && PyObject_IsTrue(statobj); |
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134 | } | |
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135 | 135 | |
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136 |
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137 | list = PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); | |
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138 | goto bail; | |
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139 | } | |
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140 | ||
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141 | if ((list = PyList_New(0)) == NULL) | |
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142 | goto bail; | |
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143 | ||
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144 | full_path = alloca(path_len + PATH_MAX + 2); | |
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145 | memcpy(full_path, path, path_len); | |
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146 | full_path[path_len] = '/'; | |
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147 | ||
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148 | while ((ent = readdir(dir))) { | |
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149 | PyObject *name = NULL; | |
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150 | PyObject *py_kind = NULL; | |
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151 | PyObject *val = NULL; | |
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152 | unsigned char d_type; | |
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153 | int kind = -1; | |
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154 | ||
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155 | if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) | |
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156 | continue; | |
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157 | ||
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158 | #ifdef DT_REG | |
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159 | if (do_stat) | |
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160 | d_type = 0; | |
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161 | else | |
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162 | d_type = ent->d_type; | |
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163 | #else | |
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164 | d_type = 0; | |
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165 | #endif | |
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166 | ||
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167 | switch (d_type) { | |
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168 | #ifdef DT_REG | |
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169 | case DT_REG: kind = S_IFREG; break; | |
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170 | case DT_DIR: kind = S_IFDIR; break; | |
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171 | case DT_LNK: kind = S_IFLNK; break; | |
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172 | case DT_BLK: kind = S_IFBLK; break; | |
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173 | case DT_CHR: kind = S_IFCHR; break; | |
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174 | case DT_FIFO: kind = S_IFIFO; break; | |
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175 | case DT_SOCK: kind = S_IFSOCK; break; | |
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176 | #endif | |
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177 | default: | |
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178 | if (all_kinds) | |
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179 | all_kinds = 0; | |
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180 | break; | |
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136 | dir = opendir(path); | |
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137 | if (!dir) { | |
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138 | list = PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); | |
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139 | goto bail; | |
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181 | 140 | } |
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182 | 141 | |
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183 | name = PyString_FromString(ent->d_name); | |
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184 | if (kind != -1) | |
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185 | py_kind = PyInt_FromLong(kind); | |
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186 | else { | |
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187 | py_kind = Py_None; | |
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188 | Py_INCREF(Py_None); | |
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189 | } | |
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142 | list = PyList_New(0); | |
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143 | if (!list) | |
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144 | goto bail; | |
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190 | 145 | |
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191 | val = PyTuple_New(do_stat ? 3 : 2); | |
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192 | ||
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193 | if (name == NULL || py_kind == NULL || val == NULL) { | |
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194 | Py_XDECREF(name); | |
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195 | Py_XDECREF(py_kind); | |
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196 | Py_XDECREF(val); | |
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197 | ||
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198 | goto bail; | |
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199 | } | |
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146 | full_path = alloca(path_len + PATH_MAX + 2); | |
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147 | memcpy(full_path, path, path_len); | |
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148 | full_path[path_len] = '/'; | |
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200 | 149 | |
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201 | PyTuple_SET_ITEM(val, 0, name); | |
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202 | PyTuple_SET_ITEM(val, 1, py_kind); | |
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203 | if (do_stat) { | |
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204 | PyTuple_SET_ITEM(val, 2, Py_None); | |
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205 | Py_INCREF(Py_None); | |
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206 | } | |
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150 | for (ent = readdir(dir); ent; ent = readdir(dir)) { | |
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151 | PyObject *name = NULL; | |
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152 | PyObject *py_kind = NULL; | |
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153 | PyObject *val = NULL; | |
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154 | unsigned char d_type; | |
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155 | int kind = -1; | |
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207 | 156 | |
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208 | PyList_Append(list, val); | |
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209 | Py_DECREF(val); | |
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210 | } | |
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211 | ||
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212 | PyList_Sort(list); | |
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157 | if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..")) | |
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158 | continue; | |
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213 | 159 | |
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214 | if (do_stat || !all_kinds) { | |
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215 | ssize_t size = PyList_Size(list); | |
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216 | ssize_t i; | |
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217 | #ifdef AT_SYMLINK_NOFOLLOW | |
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218 | int dfd = dirfd(dir); | |
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160 | #ifdef DT_REG | |
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161 | if (do_stat) | |
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162 | d_type = 0; | |
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163 | else | |
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164 | d_type = ent->d_type; | |
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165 | #else | |
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166 | d_type = 0; | |
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219 | 167 | #endif |
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220 | 168 | |
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221 | for (i = 0; i < size; i++) { | |
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222 | PyObject *elt = PyList_GetItem(list, i); | |
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223 | char *name = PyString_AsString(PyTuple_GET_ITEM(elt, 0)); | |
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224 | PyObject *py_st = NULL; | |
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225 | PyObject *py_kind = PyTuple_GET_ITEM(elt, 1); | |
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226 | int kind; | |
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227 | ||
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228 | kind = py_kind == Py_None ? -1 : PyInt_AsLong(py_kind); | |
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169 | switch (d_type) { | |
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170 | #ifdef DT_REG | |
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171 | case DT_REG: kind = S_IFREG; break; | |
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172 | case DT_DIR: kind = S_IFDIR; break; | |
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173 | case DT_LNK: kind = S_IFLNK; break; | |
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174 | case DT_BLK: kind = S_IFBLK; break; | |
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175 | case DT_CHR: kind = S_IFCHR; break; | |
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176 | case DT_FIFO: kind = S_IFIFO; break; | |
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177 | case DT_SOCK: kind = S_IFSOCK; break; | |
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178 | #endif | |
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179 | default: | |
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180 | if (all_kinds) | |
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181 | all_kinds = 0; | |
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182 | break; | |
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183 | } | |
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229 | 184 | |
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230 | if (kind != -1 && !do_stat) | |
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231 | continue; | |
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232 | ||
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233 | strcpy(full_path + path_len + 1, name); | |
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185 | name = PyString_FromString(ent->d_name); | |
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186 | if (kind != -1) | |
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187 | py_kind = PyInt_FromLong(kind); | |
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188 | else { | |
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189 | py_kind = Py_None; | |
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190 | Py_INCREF(Py_None); | |
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191 | } | |
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234 | 192 | |
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235 | if (do_stat) { | |
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236 | struct listdir_stat *st; | |
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193 | val = PyTuple_New(do_stat ? 3 : 2); | |
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237 | 194 | |
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238 | if (ctor_args == NULL) { | |
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239 | ctor_args = PyTuple_New(0); | |
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240 | if (ctor_args == NULL) | |
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195 | if (!name || !py_kind || !val) { | |
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196 | Py_XDECREF(name); | |
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197 | Py_XDECREF(py_kind); | |
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198 | Py_XDECREF(val); | |
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241 | 199 | goto bail; |
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242 | 200 | } |
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243 | 201 | |
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244 | st = (struct listdir_stat *) | |
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245 | PyObject_CallObject((PyObject *) &listdir_stat_type, | |
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246 | ctor_args); | |
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247 | if (st == NULL) | |
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248 | goto bail; | |
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249 | #ifdef AT_SYMLINK_NOFOLLOW | |
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250 | ret = fstatat(dfd, name, &st->st, AT_SYMLINK_NOFOLLOW); | |
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251 | #else | |
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252 | ret = lstat(full_path, &st->st); | |
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253 | #endif | |
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254 | if (ret == -1) { | |
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255 | list = PyErr_SetFromErrnoWithFilename(PyExc_OSError, | |
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256 | full_path); | |
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257 | goto bail; | |
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258 | } | |
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259 | if (kind == -1) | |
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260 | kind = mode_to_kind(st->st.st_mode); | |
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261 | py_st = (PyObject *) st; | |
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262 | } else { | |
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263 | struct stat buf; | |
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264 | #ifdef AT_SYMLINK_NOFOLLOW | |
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265 | ret = fstatat(dfd, ent->d_name, &buf, AT_SYMLINK_NOFOLLOW); | |
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266 | #else | |
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267 | ret = lstat(full_path, &buf); | |
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268 | #endif | |
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269 | if (ret == -1) { | |
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270 | list = PyErr_SetFromErrnoWithFilename(PyExc_OSError, | |
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271 | full_path); | |
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272 | goto bail; | |
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202 | PyTuple_SET_ITEM(val, 0, name); | |
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203 | PyTuple_SET_ITEM(val, 1, py_kind); | |
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204 | if (do_stat) { | |
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205 | PyTuple_SET_ITEM(val, 2, Py_None); | |
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206 | Py_INCREF(Py_None); | |
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273 | 207 | } |
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274 | if (kind == -1) | |
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275 | kind = mode_to_kind(buf.st_mode); | |
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276 | } | |
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208 | ||
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209 | PyList_Append(list, val); | |
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210 | Py_DECREF(val); | |
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211 | } | |
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212 | ||
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213 | PyList_Sort(list); | |
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214 | size = PyList_Size(list); | |
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215 | #ifdef AT_SYMLINK_NOFOLLOW | |
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216 | dfd = dirfd(dir); | |
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217 | #endif | |
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|
218 | ||
|
|
219 | if (do_stat || !all_kinds) { | |
|
|
220 | for (i = 0; i < size; i++) { | |
|
|
221 | PyObject *elt = PyList_GetItem(list, i); | |
|
|
222 | char *name = PyString_AsString(PyTuple_GET_ITEM(elt, 0)); | |
|
|
223 | PyObject *py_st = NULL; | |
|
|
224 | PyObject *py_kind = PyTuple_GET_ITEM(elt, 1); | |
|
|
225 | int kind; | |
|
|
226 | ||
|
|
227 | kind = py_kind == Py_None ? -1 : PyInt_AsLong(py_kind); | |
|
|
228 | ||
|
|
229 | if (kind != -1 && !do_stat) | |
|
|
230 | continue; | |
|
|
231 | ||
|
|
232 | strcpy(full_path + path_len + 1, name); | |
|
|
233 | ||
|
|
234 | if (do_stat) { | |
|
|
235 | struct listdir_stat *st; | |
|
|
236 | ||
|
|
237 | if (!ctor_args) { | |
|
|
238 | ctor_args = PyTuple_New(0); | |
|
|
239 | if (!ctor_args) | |
|
|
240 | goto bail; | |
|
|
241 | } | |
|
|
242 | ||
|
|
243 | st = (struct listdir_stat *) | |
|
|
244 | PyObject_CallObject((PyObject *)&listdir_stat_type, | |
|
|
245 | ctor_args); | |
|
|
277 | 246 | |
|
|
278 | if (py_kind == Py_None && kind != -1) { | |
|
|
279 | py_kind = PyInt_FromLong(kind); | |
|
|
280 | if (py_kind == NULL) | |
|
|
281 | goto bail; | |
|
|
282 | Py_XDECREF(Py_None); | |
|
|
283 | PyTuple_SET_ITEM(elt, 1, py_kind); | |
|
|
284 | } | |
|
|
247 | if (!st) | |
|
|
248 | goto bail; | |
|
|
249 | #ifdef AT_SYMLINK_NOFOLLOW | |
|
|
250 | ret = fstatat(dfd, name, &st->st, AT_SYMLINK_NOFOLLOW); | |
|
|
251 | #else | |
|
|
252 | ret = lstat(full_path, &st->st); | |
|
|
253 | #endif | |
|
|
254 | if (ret == -1) { | |
|
|
255 | list = PyErr_SetFromErrnoWithFilename(PyExc_OSError, | |
|
|
256 | full_path); | |
|
|
257 | goto bail; | |
|
|
258 | } | |
|
|
259 | if (kind == -1) | |
|
|
260 | kind = mode_to_kind(st->st.st_mode); | |
|
|
261 | py_st = (PyObject *)st; | |
|
|
262 | } else { | |
|
|
263 | struct stat buf; | |
|
|
264 | #ifdef AT_SYMLINK_NOFOLLOW | |
|
|
265 | ret = fstatat(dfd, ent->d_name, &buf, AT_SYMLINK_NOFOLLOW); | |
|
|
266 | #else | |
|
|
267 | ret = lstat(full_path, &buf); | |
|
|
268 | #endif | |
|
|
269 | if (ret == -1) { | |
|
|
270 | list = PyErr_SetFromErrnoWithFilename(PyExc_OSError, | |
|
|
271 | full_path); | |
|
|
272 | goto bail; | |
|
|
273 | } | |
|
|
274 | if (kind == -1) | |
|
|
275 | kind = mode_to_kind(buf.st_mode); | |
|
|
276 | } | |
|
|
285 | 277 | |
|
|
286 | if (do_stat) { | |
|
|
287 | if (py_st == NULL) { | |
|
|
288 | py_st = Py_None; | |
|
|
289 | Py_INCREF(Py_None); | |
|
|
278 | if (py_kind == Py_None && kind != -1) { | |
|
|
279 | py_kind = PyInt_FromLong(kind); | |
|
|
280 | if (!py_kind) | |
|
|
281 | goto bail; | |
|
|
282 | Py_XDECREF(Py_None); | |
|
|
283 | PyTuple_SET_ITEM(elt, 1, py_kind); | |
|
|
284 | } | |
|
|
285 | ||
|
|
286 | if (do_stat) { | |
|
|
287 | if (!py_st) { | |
|
|
288 | py_st = Py_None; | |
|
|
289 | Py_INCREF(Py_None); | |
|
|
290 | } | |
|
|
291 | PyTuple_SET_ITEM(elt, 2, py_st); | |
|
|
292 | } | |
|
|
290 | 293 | } |
|
|
291 | PyTuple_SET_ITEM(elt, 2, py_st); | |
|
|
292 | } | |
|
|
293 | } | |
|
|
294 | } | |
|
|
294 | } | |
|
|
295 | 295 | |
|
|
296 |
|
|
|
|
296 | goto done; | |
|
|
297 | ||
|
|
298 | bail: | |
|
|
299 | Py_XDECREF(list); | |
|
|
297 | 300 | |
|
|
298 | bail: | |
|
|
299 |
|
|
|
|
301 | done: | |
|
|
302 | Py_XDECREF(ctor_args); | |
|
|
303 | if (dir) | |
|
|
304 | closedir(dir); | |
|
|
305 | return list; | |
|
|
306 | } | |
|
|
300 | 307 | |
|
|
301 | done: | |
|
|
302 | Py_XDECREF(ctor_args); | |
|
|
303 | if (dir) | |
|
|
304 | closedir(dir); | |
|
|
305 | ||
|
|
306 | return list; | |
|
|
307 | } | |
|
|
308 | 308 | |
|
|
309 | 309 | static char osutil_doc[] = "Native operating system services."; |
|
|
310 | 310 | |
|
|
311 | 311 | static PyMethodDef methods[] = { |
|
|
312 |
|
|
|
|
313 |
|
|
|
|
314 |
|
|
|
|
312 | {"listdir", (PyCFunction)listdir, METH_VARARGS | METH_KEYWORDS, | |
|
|
313 | "list a directory\n"}, | |
|
|
314 | {NULL, NULL} | |
|
|
315 | 315 | }; |
|
|
316 | 316 | |
|
|
317 | 317 | PyMODINIT_FUNC initosutil(void) |
|
|
318 | 318 | { |
|
|
319 |
|
|
|
|
320 | return; | |
|
|
319 | if (PyType_Ready(&listdir_stat_type) == -1) | |
|
|
320 | return; | |
|
|
321 | 321 | |
|
|
322 |
|
|
|
|
322 | Py_InitModule3("osutil", methods, osutil_doc); | |
|
|
323 | 323 | } |
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