| ungetwc.c (101776) | ungetwc.c (103523) |
|---|---|
| 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 101776 2002-08-13 09:30:41Z tjr $"); | 28__FBSDID("$FreeBSD: head/lib/libc/stdio/ungetwc.c 103523 2002-09-18 05:58:11Z tjr $"); |
| 29 30#include "namespace.h" 31#include <errno.h> | 29 30#include "namespace.h" 31#include <errno.h> |
| 32#include <rune.h> | |
| 33#include <stdio.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 39wint_t 40ungetwc(wint_t wc, FILE *fp) 41{ | 34#include <wchar.h> 35#include "un-namespace.h" 36#include "libc_private.h" 37#include "local.h" 38 39wint_t 40ungetwc(wint_t wc, FILE *fp) 41{ |
| 42 char buf[MB_LEN_MAX]; 43 mbstate_t mbs; 44 size_t len; |
|
| 42 43 ORIENTLOCK(fp, 1); 44 | 45 46 ORIENTLOCK(fp, 1); 47 |
| 45 return (fungetrune((rune_t)wc, fp) == EOF ? WEOF : wc); | 48 if (wc == WEOF) 49 return (WEOF); 50 51 memset(&mbs, 0, sizeof(mbs)); 52 if ((len = wcrtomb(buf, wc, &mbs)) == (size_t)-1) 53 return (WEOF); 54 while (len-- != 0) 55 if (ungetc((unsigned char)buf[len], fp) == EOF) 56 return (WEOF); 57 58 return (wc); |
| 46} | 59} |