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2004-01-14  Jakub Jelinek  <jakub@redhat.com>

	* posix/regcomp.c (peek_token_bracket): Check remaining
	string length before re_string_peek_byte (x, 1).
	(parse_bracket_symbol): Likewise.
	* posix/regex_internal.h (re_string_is_single_byte_char): Return
	true at last byte in the string.
	* posix/bug-regex22.c (main): Add new test.
This commit is contained in:
Ulrich Drepper 2004-01-14 01:45:37 +00:00
parent 81144a9c4e
commit 294b6bcc13
4 changed files with 31 additions and 4 deletions
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9
ChangeLog
View File

@ -1,3 +1,12 @@
2004-01-14 Jakub Jelinek <jakub@redhat.com>
* posix/regcomp.c (peek_token_bracket): Check remaining
string length before re_string_peek_byte (x, 1).
(parse_bracket_symbol): Likewise.
* posix/regex_internal.h (re_string_is_single_byte_char): Return
true at last byte in the string.
* posix/bug-regex22.c (main): Add new test.
2004-01-13 Ulrich Drepper <drepper@redhat.com>
* sysdeps/generic/dl-sysdep.c: Move __libc_enable_secure into

10
posix/bug-regex22.c
View File

@ -95,6 +95,16 @@ main (void)
regfree (&re);
}
memset (&re, 0, sizeof (re));
re.translate = trans;
s = re_compile_pattern ("[[:DIGIT:]]", 11, &re);
if (s == NULL)
{
printf ("compilation of \"[[:DIGIT:]]\" pattern unexpectedly succeeded: %s\n",
s);
result = 1;
}
memset (&re, 0, sizeof (re));
re.translate = trans;
s = re_compile_pattern ("[[:DIGIT:]]", 2, &re);

14
posix/regcomp.c
View File

@ -1881,7 +1881,8 @@ peek_token_bracket (token, input, syntax)
}
#endif /* RE_ENABLE_I18N */
if (c == '\\' && (syntax & RE_BACKSLASH_ESCAPE_IN_LISTS))
if (c == '\\' && (syntax & RE_BACKSLASH_ESCAPE_IN_LISTS)
&& re_string_cur_idx (input) + 1 < re_string_length (input))
{
/* In this case, '\' escape a character. */
unsigned char c2;
@ -1895,7 +1896,10 @@ peek_token_bracket (token, input, syntax)
{
unsigned char c2;
int token_len;
c2 = re_string_peek_byte (input, 1);
if (re_string_cur_idx (input) + 1 < re_string_length (input))
c2 = re_string_peek_byte (input, 1);
else
c2 = 0;
token->opr.c = c2;
token_len = 2;
switch (c2)
@ -3268,14 +3272,18 @@ parse_bracket_symbol (elem, regexp, token)
{
unsigned char ch, delim = token->opr.c;
int i = 0;
if (re_string_eoi(regexp))
return REG_EBRACK;
for (;; ++i)
{
if (re_string_eoi(regexp) || i >= BRACKET_NAME_BUF_SIZE)
if (i >= BRACKET_NAME_BUF_SIZE)
return REG_EBRACK;
if (token->type == OP_OPEN_CHAR_CLASS)
ch = re_string_fetch_byte_case (regexp);
else
ch = re_string_fetch_byte (regexp);
if (re_string_eoi(regexp))
return REG_EBRACK;
if (ch == delim && re_string_peek_byte (regexp, 0) == ']')
break;
elem->opr.name[i] = ch;

2
posix/regex_internal.h
View File

@ -408,7 +408,7 @@ static unsigned char re_string_fetch_byte_case (re_string_t *pstr)
#define re_string_first_byte(pstr, idx) \
((idx) == (pstr)->valid_len || (pstr)->wcs[idx] != WEOF)
#define re_string_is_single_byte_char(pstr, idx) \
((pstr)->wcs[idx] != WEOF && ((pstr)->valid_len == (idx) \
((pstr)->wcs[idx] != WEOF && ((pstr)->valid_len == (idx) + 1 \
|| (pstr)->wcs[(idx) + 1] != WEOF))
#define re_string_eoi(pstr) ((pstr)->stop <= (pstr)->cur_idx)
#define re_string_cur_idx(pstr) ((pstr)->cur_idx)