| ungetwc.c (122042) | ungetwc.c (128002) |
|---|---|
| 1/*- 2 * Copyright (c) 2002 Tim J. Robbins. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2002 Tim J. Robbins. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: head/lib/libc/stdio/ungetwc.c 122042 2003-11-04 11:05:55Z tjr $"); | 28__FBSDID("$FreeBSD: head/lib/libc/stdio/ungetwc.c 128002 2004-04-07 09:55:05Z tjr $"); |
| 29 30#include "namespace.h" 31#include <errno.h> 32#include <stdio.h> 33#include <stdlib.h> 34#include <wchar.h> 35#include "un-namespace.h" 36#include "libc_private.h" 37#include "local.h" 38 39/* 40 * Non-MT-safe version. 41 */ 42wint_t 43__ungetwc(wint_t wc, FILE *fp) 44{ | 29 30#include "namespace.h" 31#include <errno.h> 32#include <stdio.h> 33#include <stdlib.h> 34#include <wchar.h> 35#include "un-namespace.h" 36#include "libc_private.h" 37#include "local.h" 38 39/* 40 * Non-MT-safe version. 41 */ 42wint_t 43__ungetwc(wint_t wc, FILE *fp) 44{ |
| 45 static const mbstate_t initial; 46 mbstate_t mbs; |
|
| 45 char buf[MB_LEN_MAX]; 46 size_t len; 47 48 if (wc == WEOF) 49 return (WEOF); | 47 char buf[MB_LEN_MAX]; 48 size_t len; 49 50 if (wc == WEOF) 51 return (WEOF); |
| 50 if ((len = wcrtomb(buf, wc, NULL)) == (size_t)-1) { | 52 mbs = initial; 53 if ((len = wcrtomb(buf, wc, &mbs)) == (size_t)-1) { |
| 51 fp->_flags |= __SERR; 52 return (WEOF); 53 } 54 while (len-- != 0) 55 if (__ungetc((unsigned char)buf[len], fp) == EOF) 56 return (WEOF); 57 58 return (wc); --- 17 unchanged lines hidden --- | 54 fp->_flags |= __SERR; 55 return (WEOF); 56 } 57 while (len-- != 0) 58 if (__ungetc((unsigned char)buf[len], fp) == EOF) 59 return (WEOF); 60 61 return (wc); --- 17 unchanged lines hidden --- |