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regex: test for buffer overrun * m4/regex.m4 (gl_REGEX): Add test case, by Andreas Schwab, for the just-fixed regex bug.
author Paul Eggert <eggert@cs.ucla.edu>
date Tue, 29 Jan 2013 22:34:58 -0800
parents e542fd46ad6f
children 19e841152153
comparison
equal deleted inserted replaced
17304:d08258969ee9 17305:0e5a583a2a8d
1 # serial 61 1 # serial 62
2 2
3 # Copyright (C) 1996-2001, 2003-2013 Free Software Foundation, Inc. 3 # Copyright (C) 1996-2001, 2003-2013 Free Software Foundation, Inc.
4 # 4 #
5 # This file is free software; the Free Software Foundation 5 # This file is free software; the Free Software Foundation
6 # gives unlimited permission to copy and/or distribute it, 6 # gives unlimited permission to copy and/or distribute it,
41 unsigned char folded_chars[UCHAR_MAX + 1]; 41 unsigned char folded_chars[UCHAR_MAX + 1];
42 int i; 42 int i;
43 const char *s; 43 const char *s;
44 struct re_registers regs; 44 struct re_registers regs;
45 45
46 /* http://sourceware.org/ml/libc-hacker/2006-09/msg00008.html
47 This test needs valgrind to catch the bug on Debian
48 GNU/Linux 3.1 x86, but it might catch the bug better
49 on other platforms and it shouldn't hurt to try the
50 test here. */
51 if (setlocale (LC_ALL, "en_US.UTF-8")) 46 if (setlocale (LC_ALL, "en_US.UTF-8"))
52 { 47 {
53 static char const pat[] = "insert into"; 48 {
54 static char const data[] = 49 /* http://sourceware.org/ml/libc-hacker/2006-09/msg00008.html
55 "\xFF\0\x12\xA2\xAA\xC4\xB1,K\x12\xC4\xB1*\xACK"; 50 This test needs valgrind to catch the bug on Debian
56 re_set_syntax (RE_SYNTAX_GREP | RE_HAT_LISTS_NOT_NEWLINE 51 GNU/Linux 3.1 x86, but it might catch the bug better
57 | RE_ICASE); 52 on other platforms and it shouldn't hurt to try the
58 memset (&regex, 0, sizeof regex); 53 test here. */
59 s = re_compile_pattern (pat, sizeof pat - 1, &regex); 54 static char const pat[] = "insert into";
60 if (s) 55 static char const data[] =
61 result |= 1; 56 "\xFF\0\x12\xA2\xAA\xC4\xB1,K\x12\xC4\xB1*\xACK";
62 else if (re_search (&regex, data, sizeof data - 1, 57 re_set_syntax (RE_SYNTAX_GREP | RE_HAT_LISTS_NOT_NEWLINE
63 0, sizeof data - 1, &regs) 58 | RE_ICASE);
64 != -1) 59 memset (&regex, 0, sizeof regex);
65 result |= 1; 60 s = re_compile_pattern (pat, sizeof pat - 1, &regex);
61 if (s)
62 result |= 1;
63 else if (re_search (&regex, data, sizeof data - 1,
64 0, sizeof data - 1, &regs)
65 != -1)
66 result |= 1;
67 }
68
69 {
70 /* This test is from glibc bug 15078.
71 The test case is from Andreas Schwab in
72 <http://www.sourceware.org/ml/libc-alpha/2013-01/msg00967.html>.
73 */
74 static char const pat[] = "[^x]x";
75 static char const data[] =
76 "\xe1\x80\x80\xe1\x80\xbb\xe1\x80\xbd\xe1\x80\x94\xe1\x80"
77 "\xba\xe1\x80\xaf\xe1\x80\x95\xe1\x80\xbax";
78 re_set_syntax (0);
79 memset (&regex, 0, sizeof regex);
80 s = re_compile_pattern (pat, sizeof pat - 1, &regex);
81 if (s)
82 result |= 1;
83 else if (re_search (&regex, data, sizeof data - 1,
84 0, sizeof data - 1, 0)
85 != 20)
86 result |= 1;
87 }
88
66 if (! setlocale (LC_ALL, "C")) 89 if (! setlocale (LC_ALL, "C"))
67 return 1; 90 return 1;
68 } 91 }
69 92
70 /* This test is from glibc bug 3957, reported by Andrew Mackey. */ 93 /* This test is from glibc bug 3957, reported by Andrew Mackey. */