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78 lines
2.7 KiB
78 lines
2.7 KiB
7 years ago
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diff -Nru glibc-2.17-c758a686/posix/fnmatch.c glibc-2.17-c758a686/posix/fnmatch.c
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--- glibc-2.17-c758a686/posix/fnmatch.c 2012-01-01 07:16:32.000000000 -0500
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+++ glibc-2.17-c758a686/posix/fnmatch.c 2012-05-23 14:14:29.099461189 -0400
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@@ -333,6 +333,7 @@ fnmatch (pattern, string, flags)
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# if HANDLE_MULTIBYTE
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if (__builtin_expect (MB_CUR_MAX, 1) != 1)
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{
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+ const char *orig_pattern = pattern;
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mbstate_t ps;
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size_t n;
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const char *p;
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@@ -356,10 +357,8 @@ fnmatch (pattern, string, flags)
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alloca_used);
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n = mbsrtowcs (wpattern, &p, n + 1, &ps);
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if (__builtin_expect (n == (size_t) -1, 0))
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- /* Something wrong.
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- XXX Do we have to set `errno' to something which mbsrtows hasn't
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- already done? */
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- return -1;
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+ /* Something wrong: Fall back to single byte matching. */
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+ goto try_singlebyte;
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if (p)
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{
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memset (&ps, '\0', sizeof (ps));
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@@ -371,10 +370,8 @@ fnmatch (pattern, string, flags)
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prepare_wpattern:
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n = mbsrtowcs (NULL, &pattern, 0, &ps);
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if (__builtin_expect (n == (size_t) -1, 0))
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- /* Something wrong.
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- XXX Do we have to set `errno' to something which mbsrtows hasn't
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- already done? */
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- return -1;
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+ /*Something wrong: Fall back to single byte matching. */
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+ goto try_singlebyte;
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if (__builtin_expect (n >= (size_t) -1 / sizeof (wchar_t), 0))
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{
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__set_errno (ENOMEM);
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@@ -401,14 +398,8 @@ fnmatch (pattern, string, flags)
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alloca_used);
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n = mbsrtowcs (wstring, &p, n + 1, &ps);
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if (__builtin_expect (n == (size_t) -1, 0))
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- {
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- /* Something wrong.
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- XXX Do we have to set `errno' to something which
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- mbsrtows hasn't already done? */
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- free_return:
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- free (wpattern_malloc);
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- return -1;
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- }
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+ /* Something wrong: Fall back to single byte matching. */
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+ goto free_and_try_singlebyte;
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if (p)
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{
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memset (&ps, '\0', sizeof (ps));
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@@ -420,10 +411,8 @@ fnmatch (pattern, string, flags)
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prepare_wstring:
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n = mbsrtowcs (NULL, &string, 0, &ps);
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if (__builtin_expect (n == (size_t) -1, 0))
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- /* Something wrong.
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- XXX Do we have to set `errno' to something which mbsrtows hasn't
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- already done? */
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- goto free_return;
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+ /* Something wrong: Fall back to singlebyte matching. */
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+ goto free_and_try_singlebyte;
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if (__builtin_expect (n >= (size_t) -1 / sizeof (wchar_t), 0))
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{
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free (wpattern_malloc);
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@@ -450,6 +439,10 @@ fnmatch (pattern, string, flags)
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free (wpattern_malloc);
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return res;
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+ free_and_try_singlebyte:
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+ free(wpattern_malloc);
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+ try_singlebyte:
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+ pattern = orig_pattern;
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}
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# endif /* mbstate_t and mbsrtowcs or _LIBC. */
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