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Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when 

using byte values greater than 127.  Patch by egreen.
This commit is contained in:
Antoine Pitrou 2009-10-14 17:14:16 +00:00
parent 919765a095
commit 403ce78872
3 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
Lib/test/test_bytes.py
View File

@ -454,8 +454,9 @@ def test_ord(self):
def test_maketrans(self):
transtable = b'\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037 !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`xyzdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377'
self.assertEqual(self.type2test.maketrans(b'abc', b'xyz'), transtable)
transtable = b'\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037 !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374xyz'
self.assertEqual(self.type2test.maketrans(b'\375\376\377', b'xyz'), transtable)
self.assertRaises(ValueError, self.type2test.maketrans, b'abc', b'xyzq')
self.assertRaises(TypeError, self.type2test.maketrans, 'abc', 'def')
@ -1074,13 +1075,10 @@ def __init__(self, newarg=1, *args, **kwargs):
def test_main():
test.support.run_unittest(BytesTest)
test.support.run_unittest(ByteArrayTest)
test.support.run_unittest(AssortedBytesTest)
test.support.run_unittest(BytesAsStringTest)
test.support.run_unittest(ByteArrayAsStringTest)
test.support.run_unittest(ByteArraySubclassTest)
test.support.run_unittest(BytearrayPEP3137Test)
test.support.run_unittest(
BytesTest, AssortedBytesTest, BytesAsStringTest,
ByteArrayTest, ByteArrayAsStringTest, ByteArraySubclassTest,
BytearrayPEP3137Test)
if __name__ == "__main__":
test_main()

3
Misc/NEWS
View File

@ -12,6 +12,9 @@ What's New in Python 3.2 Alpha 1?
Core and Builtins
-----------------
- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
using byte values greater than 127. Patch by egreen.
- Issue #1571184: The Unicode database contains properties for more characters.
The tables for code points representing numeric values, white spaces or line
breaks are now generated from the official Unicode Character Database files,

4
Objects/bytes_methods.c
View File

@ -427,7 +427,7 @@ _Py_bytes_maketrans(PyObject *args)
{
PyObject *frm, *to, *res = NULL;
Py_buffer bfrm, bto;
int i;
Py_ssize_t i;
char *p;
bfrm.len = -1;
@ -452,7 +452,7 @@ _Py_bytes_maketrans(PyObject *args)
for (i = 0; i < 256; i++)
p[i] = i;
for (i = 0; i < bfrm.len; i++) {
p[(int)((char *)bfrm.buf)[i]] = ((char *)bto.buf)[i];
p[((unsigned char *)bfrm.buf)[i]] = ((char *)bto.buf)[i];
}
done: