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| author | Ulrich Drepper <drepper@redhat.com> | 2004-01-14 01:45:37 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-01-14 01:45:37 +0000 |
| commit | 294b6bcc13c28fe4b4d605a9f8e3cab58e6853ca (patch) | |
| tree | 0b9a617357049d60273de6ba5210ec4363c2b085 /posix | |
| parent | 81144a9c4e2ef74f2e935192db562684793a4da9 (diff) | |
| download | glibc-294b6bcc13c28fe4b4d605a9f8e3cab58e6853ca.tar glibc-294b6bcc13c28fe4b4d605a9f8e3cab58e6853ca.tar.gz glibc-294b6bcc13c28fe4b4d605a9f8e3cab58e6853ca.tar.bz2 glibc-294b6bcc13c28fe4b4d605a9f8e3cab58e6853ca.zip | |
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.c | 10 | ||||
| -rw-r--r-- | posix/regcomp.c | 14 | ||||
| -rw-r--r-- | posix/regex_internal.h | 2 |
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) |