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annotate Python/traceback.c @ 43961:b231bda653a4

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PyString_AsString is permissive and accepts unicode strings. Replace it with PyUnicode_AsString when the argument is known to be a str.
author Amaury Forgeot d'Arc <amauryfa@gmail.com>
date Thu, 22 Nov 2007 02:48:12 +0000
parents 19319e70fc3e
children f324631462a2
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1
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2 /* Traceback implementation */
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3
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4 #include "Python.h"
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5
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6 #include "code.h"
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7 #include "frameobject.h"
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8 #include "structmember.h"
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9 #include "osdefs.h"
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10 #include "traceback.h"
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11
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12 #define OFF(x) offsetof(PyTracebackObject, x)
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13
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14 static PyObject *
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15 tb_dir(PyTracebackObject *self)
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16 {
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17 return Py_BuildValue("[ssss]", "tb_frame", "tb_next",
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18 "tb_lasti", "tb_lineno");
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19 }
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20
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21 static PyMethodDef tb_methods[] = {
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22 {"__dir__", (PyCFunction)tb_dir, METH_NOARGS},
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23 {NULL, NULL, 0, NULL},
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24 };
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25
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26 static PyMemberDef tb_memberlist[] = {
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27 {"tb_next", T_OBJECT, OFF(tb_next), READONLY},
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28 {"tb_frame", T_OBJECT, OFF(tb_frame), READONLY},
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29 {"tb_lasti", T_INT, OFF(tb_lasti), READONLY},
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30 {"tb_lineno", T_INT, OFF(tb_lineno), READONLY},
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31 {NULL} /* Sentinel */
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32 };
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34 static void
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35 tb_dealloc(PyTracebackObject *tb)
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36 {
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37 PyObject_GC_UnTrack(tb);
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38 Py_TRASHCAN_SAFE_BEGIN(tb)
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39 Py_XDECREF(tb->tb_next);
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40 Py_XDECREF(tb->tb_frame);
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41 PyObject_GC_Del(tb);
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42 Py_TRASHCAN_SAFE_END(tb)
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43 }
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44
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45 static int
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46 tb_traverse(PyTracebackObject *tb, visitproc visit, void *arg)
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47 {
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48 Py_VISIT(tb->tb_next);
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49 Py_VISIT(tb->tb_frame);
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50 return 0;
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51 }
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52
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53 static void
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54 tb_clear(PyTracebackObject *tb)
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55 {
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56 Py_CLEAR(tb->tb_next);
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57 Py_CLEAR(tb->tb_frame);
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58 }
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59
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60 PyTypeObject PyTraceBack_Type = {
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61 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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62 "traceback",
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63 sizeof(PyTracebackObject),
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64 0,
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65 (destructor)tb_dealloc, /*tp_dealloc*/
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66 0, /*tp_print*/
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67 0, /*tp_getattr*/
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68 0, /*tp_setattr*/
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69 0, /*tp_compare*/
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70 0, /*tp_repr*/
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71 0, /*tp_as_number*/
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72 0, /*tp_as_sequence*/
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73 0, /*tp_as_mapping*/
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74 0, /* tp_hash */
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75 0, /* tp_call */
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76 0, /* tp_str */
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77 PyObject_GenericGetAttr, /* tp_getattro */
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78 0, /* tp_setattro */
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79 0, /* tp_as_buffer */
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80 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
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81 0, /* tp_doc */
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82 (traverseproc)tb_traverse, /* tp_traverse */
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83 (inquiry)tb_clear, /* tp_clear */
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84 0, /* tp_richcompare */
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85 0, /* tp_weaklistoffset */
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86 0, /* tp_iter */
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87 0, /* tp_iternext */
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88 tb_methods, /* tp_methods */
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89 tb_memberlist, /* tp_members */
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90 0, /* tp_getset */
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91 0, /* tp_base */
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92 0, /* tp_dict */
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93 };
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94
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95 static PyTracebackObject *
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96 newtracebackobject(PyTracebackObject *next, PyFrameObject *frame)
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97 {
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98 PyTracebackObject *tb;
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99 if ((next != NULL && !PyTraceBack_Check(next)) ||
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100 frame == NULL || !PyFrame_Check(frame)) {
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101 PyErr_BadInternalCall();
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102 return NULL;
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103 }
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104 tb = PyObject_GC_New(PyTracebackObject, &PyTraceBack_Type);
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105 if (tb != NULL) {
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106 Py_XINCREF(next);
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107 tb->tb_next = next;
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108 Py_XINCREF(frame);
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109 tb->tb_frame = frame;
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110 tb->tb_lasti = frame->f_lasti;
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111 tb->tb_lineno = PyCode_Addr2Line(frame->f_code,
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112 frame->f_lasti);
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113 PyObject_GC_Track(tb);
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114 }
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115 return tb;
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116 }
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117
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118 int
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119 PyTraceBack_Here(PyFrameObject *frame)
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120 {
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121 PyThreadState *tstate = PyThreadState_GET();
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122 PyTracebackObject *oldtb = (PyTracebackObject *) tstate->curexc_traceback;
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123 PyTracebackObject *tb = newtracebackobject(oldtb, frame);
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124 if (tb == NULL)
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125 return -1;
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126 tstate->curexc_traceback = (PyObject *)tb;
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127 Py_XDECREF(oldtb);
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128 return 0;
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129 }
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130
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131 static int
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132 tb_displayline(PyObject *f, char *filename, int lineno, char *name)
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133 {
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134 int err = 0;
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135 FILE *xfp;
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Tim Peters <tim.peters@gmail.com>
parents: 20623
diff changeset
136 char linebuf[2000];
86
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Guido van Rossum <guido@python.org>
parents:
diff changeset
137 int i;
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
138 if (filename == NULL || name == NULL)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
139 return -1;
1831
216b755515e6 add function name to traceback info
Guido van Rossum <guido@python.org>
parents: 1425
diff changeset
140 /* This is needed by Emacs' compile command */
21057
2c0a9a5086e1 SF bug 485175: buffer overflow in traceback.c.
Tim Peters <tim.peters@gmail.com>
parents: 20623
diff changeset
141 #define FMT " File \"%.500s\", line %d, in %.500s\n"
23029
8291473fde3e Mass checkin of universal newline support.
Jack Jansen <jack.jansen@cwi.nl>
parents: 22650
diff changeset
142 xfp = fopen(filename, "r" PY_STDIOTEXTMODE);
86
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Guido van Rossum <guido@python.org>
parents:
diff changeset
143 if (xfp == NULL) {
674
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
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144 /* Search tail of filename in sys.path before giving up */
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parents: 5317
diff changeset
145 PyObject *path;
674
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
146 char *tail = strrchr(filename, SEP);
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
147 if (tail == NULL)
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
148 tail = filename;
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
149 else
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
150 tail++;
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diff changeset
151 path = PySys_GetObject("path");
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parents: 5317
diff changeset
152 if (path != NULL && PyList_Check(path)) {
36521
30aef3ce2b26 Use Py_ssize_t to count the
Martin v. Löwis <martin@v.loewis.de>
parents: 35742
diff changeset
153 Py_ssize_t _npath = PyList_Size(path);
30aef3ce2b26 Use Py_ssize_t to count the
Martin v. Löwis <martin@v.loewis.de>
parents: 35742
diff changeset
154 int npath = Py_SAFE_DOWNCAST(_npath, Py_ssize_t, int);
13096
8c8de5b736dc Trent Mick's Win64 changes: size_t vs. int or long; also some overflow
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
155 size_t taillen = strlen(tail);
674
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
156 char namebuf[MAXPATHLEN+1];
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
157 for (i = 0; i < npath; i++) {
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parents: 5317
diff changeset
158 PyObject *v = PyList_GetItem(path, i);
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
159 if (v == NULL) {
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
160 PyErr_Clear();
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
161 break;
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
162 }
5372
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Guido van Rossum <guido@python.org>
parents: 5317
diff changeset
163 if (PyString_Check(v)) {
13096
8c8de5b736dc Trent Mick's Win64 changes: size_t vs. int or long; also some overflow
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
164 size_t len;
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36877
diff changeset
165 len = PyString_GET_SIZE(v);
1909
0c232194a64f * Python/traceback.c: security fix -- check for buffer oveflow
Guido van Rossum <guido@python.org>
parents: 1831
diff changeset
166 if (len + 1 + taillen >= MAXPATHLEN)
0c232194a64f * Python/traceback.c: security fix -- check for buffer oveflow
Guido van Rossum <guido@python.org>
parents: 1831
diff changeset
167 continue; /* Too long */
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parents: 5317
diff changeset
168 strcpy(namebuf, PyString_AsString(v));
13096
8c8de5b736dc Trent Mick's Win64 changes: size_t vs. int or long; also some overflow
Guido van Rossum <guido@python.org>
parents: 12576
diff changeset
169 if (strlen(namebuf) != len)
1909
0c232194a64f * Python/traceback.c: security fix -- check for buffer oveflow
Guido van Rossum <guido@python.org>
parents: 1831
diff changeset
170 continue; /* v contains '\0' */
674
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
171 if (len > 0 && namebuf[len-1] != SEP)
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
172 namebuf[len++] = SEP;
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
173 strcpy(namebuf+len, tail);
23029
8291473fde3e Mass checkin of universal newline support.
Jack Jansen <jack.jansen@cwi.nl>
parents: 22650
diff changeset
174 xfp = fopen(namebuf, "r" PY_STDIOTEXTMODE);
674
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
175 if (xfp != NULL) {
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
176 filename = namebuf;
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
177 break;
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
178 }
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
179 }
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
180 }
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
181 }
86
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Guido van Rossum <guido@python.org>
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182 }
21077
379fc66f4c96 Use PyOS_snprintf instead of sprintf.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 21057
diff changeset
183 PyOS_snprintf(linebuf, sizeof(linebuf), FMT, filename, lineno, name);
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
184 err = PyFile_WriteString(linebuf, f);
36877
e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity.
Hye-Shik Chang <hyeshik@gmail.com>
parents: 36521
diff changeset
185 if (xfp == NULL)
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
186 return err;
36877
e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity.
Hye-Shik Chang <hyeshik@gmail.com>
parents: 36521
diff changeset
187 else if (err != 0) {
e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity.
Hye-Shik Chang <hyeshik@gmail.com>
parents: 36521
diff changeset
188 fclose(xfp);
e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity.
Hye-Shik Chang <hyeshik@gmail.com>
parents: 36521
diff changeset
189 return err;
e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity.
Hye-Shik Chang <hyeshik@gmail.com>
parents: 36521
diff changeset
190 }
86
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Guido van Rossum <guido@python.org>
parents:
diff changeset
191 for (i = 0; i < lineno; i++) {
11294
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
192 char* pLastChar = &linebuf[sizeof(linebuf)-2];
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
193 do {
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
194 *pLastChar = '\0';
23029
8291473fde3e Mass checkin of universal newline support.
Jack Jansen <jack.jansen@cwi.nl>
parents: 22650
diff changeset
195 if (Py_UniversalNewlineFgets(linebuf, sizeof linebuf, xfp, NULL) == NULL)
11294
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
196 break;
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
197 /* fgets read *something*; if it didn't get as
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
198 far as pLastChar, it must have found a newline
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
199 or hit the end of the file; if pLastChar is \n,
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
200 it obviously found a newline; else we haven't
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
201 yet seen a newline, so must continue */
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks.
Guido van Rossum <guido@python.org>
parents: 5608
diff changeset
202 } while (*pLastChar != '\0' && *pLastChar != '\n');
86
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Guido van Rossum <guido@python.org>
parents:
diff changeset
203 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
204 if (i == lineno) {
674
4e2d239dc64c Move printing of filename and lineno to tb_displayline.
Guido van Rossum <guido@python.org>
parents: 597
diff changeset
205 char *p = linebuf;
2811
07fc4fefb683 ignore control-l (parallelling change to tokenizer.c)
Guido van Rossum <guido@python.org>
parents: 2062
diff changeset
206 while (*p == ' ' || *p == '\t' || *p == '\014')
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
207 p++;
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
208 err = PyFile_WriteString(" ", f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
209 if (err == 0) {
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
210 err = PyFile_WriteString(p, f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
211 if (err == 0 && strchr(p, '\n') == NULL)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
212 err = PyFile_WriteString("\n", f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
213 }
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
214 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
215 fclose(xfp);
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
216 return err;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
217 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
218
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
219 static int
31739
49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30968
diff changeset
220 tb_printinternal(PyTracebackObject *tb, PyObject *f, int limit)
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
221 {
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
222 int err = 0;
1425
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
223 int depth = 0;
31739
49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30968
diff changeset
224 PyTracebackObject *tb1 = tb;
1425
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
225 while (tb1 != NULL) {
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
226 depth++;
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
227 tb1 = tb1->tb_next;
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
228 }
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
229 while (tb != NULL && err == 0) {
5046
658815230546 Get the line number from PyCode_Addr2Line instead of believing
Guido van Rossum <guido@python.org>
parents: 4503
diff changeset
230 if (depth <= limit) {
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
231 err = tb_displayline(f,
43569
19319e70fc3e Patch #1272, by Christian Heimes and Alexandre Vassalotti.
Guido van Rossum <guido@python.org>
parents: 42593
diff changeset
232 PyUnicode_AsString(
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5317
diff changeset
233 tb->tb_frame->f_code->co_filename),
1831
216b755515e6 add function name to traceback info
Guido van Rossum <guido@python.org>
parents: 1425
diff changeset
234 tb->tb_lineno,
43569
19319e70fc3e Patch #1272, by Christian Heimes and Alexandre Vassalotti.
Guido van Rossum <guido@python.org>
parents: 42593
diff changeset
235 PyUnicode_AsString(tb->tb_frame->f_code->co_name));
5046
658815230546 Get the line number from PyCode_Addr2Line instead of believing
Guido van Rossum <guido@python.org>
parents: 4503
diff changeset
236 }
1425
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
237 depth--;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
238 tb = tb->tb_next;
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
239 if (err == 0)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
240 err = PyErr_CheckSignals();
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
241 }
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
242 return err;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
243 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
244
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
245 int
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13256
diff changeset
246 PyTraceBack_Print(PyObject *v, PyObject *f)
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
247 {
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
248 int err;
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5317
diff changeset
249 PyObject *limitv;
1425
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
250 int limit = 1000;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
251 if (v == NULL)
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
252 return 0;
20618
57b51966a4f1 Removed two pointless and obfuscating macros.
Tim Peters <tim.peters@gmail.com>
parents: 14375
diff changeset
253 if (!PyTraceBack_Check(v)) {
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5317
diff changeset
254 PyErr_BadInternalCall();
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
255 return -1;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
256 }
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5317
diff changeset
257 limitv = PySys_GetObject("tracebacklimit");
40626
4aee3f672f77 Merged the int/long unification branch, by very crude means (sorry Thomas!).
Guido van Rossum <guido@python.org>
parents: 37879
diff changeset
258 if (limitv && PyInt_CheckExact(limitv)) {
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5317
diff changeset
259 limit = PyInt_AsLong(limitv);
1425
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
260 if (limit <= 0)
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
261 return 0;
72bddfad351a * mpzmodule.c: cast some methods to the proper type.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
262 }
12137
5b5581af951c Change traceback error message to "most recent call last" from
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
263 err = PyFile_WriteString("Traceback (most recent call last):\n", f);
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
264 if (!err)
31739
49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067
Nicholas Bastin <nick.bastin@gmail.com>
parents: 30968
diff changeset
265 err = tb_printinternal((PyTracebackObject *)v, f, limit);
5608
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling
Guido van Rossum <guido@python.org>
parents: 5405
diff changeset
266 return err;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents:
diff changeset
267 }