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authorUlrich Drepper <drepper@redhat.com>2004-01-14 01:45:37 +0000
committerUlrich Drepper <drepper@redhat.com>2004-01-14 01:45:37 +0000
commit294b6bcc13c28fe4b4d605a9f8e3cab58e6853ca (patch)
tree0b9a617357049d60273de6ba5210ec4363c2b085 /posix
parent81144a9c4e2ef74f2e935192db562684793a4da9 (diff)
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Update.
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.
Diffstat (limited to 'posix')
-rw-r--r--posix/bug-regex22.c10
-rw-r--r--posix/regcomp.c14
-rw-r--r--posix/regex_internal.h2
3 files changed, 22 insertions, 4 deletions
diff --git a/posix/bug-regex22.c b/posix/bug-regex22.c
index 4d8357c27b..1636202d36 100644
--- a/posix/bug-regex22.c
+++ b/posix/bug-regex22.c
@@ -97,6 +97,16 @@ main (void)
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);
if (s == NULL)
{
diff --git a/posix/regcomp.c b/posix/regcomp.c
index 6b4af54da8..adb9d04d8a 100644
--- a/posix/regcomp.c
+++ b/posix/regcomp.c
@@ -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;
diff --git a/posix/regex_internal.h b/posix/regex_internal.h
index 084028f90f..6cbc48eee5 100644
--- a/posix/regex_internal.h
+++ b/posix/regex_internal.h
@@ -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)