63 lines
2.5 KiB
Diff
63 lines
2.5 KiB
Diff
From 8a34866d978e4281d69104372056ba0211d1373a Mon Sep 17 00:00:00 2001
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From: Andreas Schwab <schwab@redhat.com>
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Date: Tue, 31 Aug 2010 12:20:05 +0200
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Subject: [PATCH] Don't parse %s format argument as multibyte string
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[BZ #6530]
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* stdio-common/vfprintf.c (process_string_arg): Revert 2000-07-22
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change.
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---
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ChangeLog | 4 ++++
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stdio-common/vfprintf.c | 40 ++++------------------------------------
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2 files changed, 8 insertions(+), 36 deletions(-)
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--- a/stdio-common/vfprintf.c
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+++ b/stdio-common/vfprintf.c
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@@ -1168,42 +1168,9 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
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else if (!is_long && spec != L_('S')) \
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{ \
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if (prec != -1) \
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- { \
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- /* Search for the end of the string, but don't search past \
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- the length (in bytes) specified by the precision. Also \
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- don't use incomplete characters. */ \
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- if (_NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MB_CUR_MAX) == 1) \
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- len = __strnlen (string, prec); \
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- else \
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- { \
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- /* In case we have a multibyte character set the \
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- situation is more complicated. We must not copy \
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- bytes at the end which form an incomplete character. */\
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- size_t ignore_size = (unsigned) prec > 1024 ? 1024 : prec;\
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- wchar_t ignore[ignore_size]; \
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- const char *str2 = string; \
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- const char *strend = string + prec; \
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- if (strend < string) \
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- strend = (const char *) UINTPTR_MAX; \
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- \
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- mbstate_t ps; \
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- memset (&ps, '\0', sizeof (ps)); \
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- \
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- while (str2 != NULL && str2 < strend) \
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- if (__mbsnrtowcs (ignore, &str2, strend - str2, \
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- ignore_size, &ps) == (size_t) -1) \
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- { \
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- /* Conversion function has set errno. */ \
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- done = -1; \
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- goto all_done; \
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- } \
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- \
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- if (str2 == NULL) \
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- len = strlen (string); \
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- else \
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- len = str2 - string - (ps.__count & 7); \
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- } \
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- } \
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+ /* Search for the end of the string, but don't search past \
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+ the length (in bytes) specified by the precision. */ \
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+ len = __strnlen (string, prec); \
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else \
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len = strlen (string); \
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} \
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