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* stdlib/wcstombs.c: Do not use global state.
	Reported by Bruno Haible <haible@ilog.fr>.
This commit is contained in:
Ulrich Drepper 1999-07-26 17:01:32 +00:00
parent eea35053ac
commit ff5c72ff50
2 changed files with 9 additions and 16 deletions
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ChangeLog
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@ -1,5 +1,8 @@
1999-07-26 Ulrich Drepper <drepper@cygnus.com> 1999-07-26 Ulrich Drepper <drepper@cygnus.com>
* stdlib/wcstombs.c: Do not use global state.
Reported by Bruno Haible <haible@ilog.fr>.
* wcsmbs/wctob.c: Avoid sign extension when returning character. * wcsmbs/wctob.c: Avoid sign extension when returning character.
Reported by Bruno Haible <haible@ilog.fr>. Reported by Bruno Haible <haible@ilog.fr>.

22
stdlib/wcstombs.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc. /* Copyright (C) 1991,1992,1995,1996,1997,1999 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -17,30 +17,20 @@
Boston, MA 02111-1307, USA. */ Boston, MA 02111-1307, USA. */
#include <stdlib.h> #include <stdlib.h>
#include <string.h>
#include <wchar.h> #include <wchar.h>
extern mbstate_t __no_r_state; /* Defined in mbtowc.c. */
/* Convert the `wchar_t' string in PWCS to a multibyte character string /* Convert the `wchar_t' string in PWCS to a multibyte character string
in S, writing no more than N characters. Return the number of bytes in S, writing no more than N characters. Return the number of bytes
written, or (size_t) -1 if an invalid `wchar_t' was found. written, or (size_t) -1 if an invalid `wchar_t' was found. */
Attention: this function should NEVER be intentionally used.
The interface is completely stupid. The state is shared between
all conversion functions. You should use instead the restartable
version `wcsrtombs'. */
size_t size_t
wcstombs (char *s, const wchar_t *pwcs, size_t n) wcstombs (char *s, const wchar_t *pwcs, size_t n)
{ {
mbstate_t save_shift = __no_r_state; mbstate_t state;
size_t written;
written = __wcsrtombs (s, &pwcs, n, &__no_r_state); memset (&state, '\0', sizeof state);
/* Restore the old shift state. */
__no_r_state = save_shift;
/* Return how many we wrote (or maybe an error). */ /* Return how many we wrote (or maybe an error). */
return written; return __wcsrtombs (s, &pwcs, n, &state);
} }