Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 359 | serge | 1 | /**************************************************************************** |
| 2 | * |
||
| 3 | * Open Watcom Project |
||
| 4 | * |
||
| 5 | * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
||
| 6 | * |
||
| 7 | * ======================================================================== |
||
| 8 | * |
||
| 9 | * This file contains Original Code and/or Modifications of Original |
||
| 10 | * Code as defined in and that are subject to the Sybase Open Watcom |
||
| 11 | * Public License version 1.0 (the 'License'). You may not use this file |
||
| 12 | * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
||
| 13 | * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
||
| 14 | * provided with the Original Code and Modifications, and is also |
||
| 15 | * available at www.sybase.com/developer/opensource. |
||
| 16 | * |
||
| 17 | * The Original Code and all software distributed under the License are |
||
| 18 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
||
| 19 | * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
||
| 20 | * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
||
| 21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
||
| 22 | * NON-INFRINGEMENT. Please see the License for the specific language |
||
| 23 | * governing rights and limitations under the License. |
||
| 24 | * |
||
| 25 | * ======================================================================== |
||
| 26 | * |
||
| 27 | * Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE |
||
| 28 | * DESCRIBE IT HERE! |
||
| 29 | * |
||
| 30 | ****************************************************************************/ |
||
| 31 | |||
| 32 | |||
| 33 | #include "variety.h" |
||
| 34 | #include "widechar.h" |
||
| 35 | #include |
||
| 36 | #include "riscstr.h" |
||
| 37 | |||
| 38 | #if defined(M_I86) & !defined(__WIDECHAR__) |
||
| 39 | |||
| 40 | extern char *fast_strncpy( char _WCFAR *, const char *, size_t ); |
||
| 41 | |||
| 42 | #if defined(__SMALL_DATA__) |
||
| 43 | |||
| 44 | #pragma aux fast_strncpy = \ |
||
| 45 | 0x57 /* push di */\ |
||
| 46 | 0xac /* L1: lodsb */\ |
||
| 47 | 0xaa /* stosb */\ |
||
| 48 | 0x84 0xc0 /* test al,al */\ |
||
| 49 | 0xe0 0xfa /* loopne L1 */\ |
||
| 50 | 0x31 0xc0 /* xor ax,ax */\ |
||
| 51 | 0xd1 0xe9 /* shr cx,1 */\ |
||
| 52 | 0xf3 0xab /* rep stosw */\ |
||
| 53 | 0x11 0xc9 /* adc cx,cx */\ |
||
| 54 | 0xf3 0xaa /* rep stosb */\ |
||
| 55 | 0x58 /* pop ax */\ |
||
| 56 | parm caller [es di] [si] [cx]\ |
||
| 57 | value [ax] \ |
||
| 58 | modify exact [ax cx si di]; |
||
| 59 | |||
| 60 | #else |
||
| 61 | |||
| 62 | #pragma aux fast_strncpy = \ |
||
| 63 | 0x1e /* push ds */ \ |
||
| 64 | 0x8e 0xda /* mov ds,dx */ \ |
||
| 65 | 0x57 /* push di */\ |
||
| 66 | 0xac /* L1: lodsb */\ |
||
| 67 | 0xaa /* stosb */\ |
||
| 68 | 0x84 0xc0 /* test al,al */\ |
||
| 69 | 0xe0 0xfa /* loopne L1 */\ |
||
| 70 | 0x31 0xc0 /* xor ax,ax */\ |
||
| 71 | 0xd1 0xe9 /* shr cx,1 */\ |
||
| 72 | 0xf3 0xab /* rep stosw */\ |
||
| 73 | 0x11 0xc9 /* adc cx,cx */\ |
||
| 74 | 0xf3 0xaa /* rep stosb */\ |
||
| 75 | 0x58 /* pop ax */\ |
||
| 76 | 0x1f /* pop ds */ \ |
||
| 77 | parm caller [es di] [dx si] [cx]\ |
||
| 78 | value [es ax] \ |
||
| 79 | modify exact [ax cx si di]; |
||
| 80 | |||
| 81 | #endif |
||
| 82 | |||
| 83 | #endif |
||
| 84 | |||
| 85 | |||
| 86 | #if defined(__RISCSTR__) && defined(__WIDECHAR__) |
||
| 87 | _WCRTLINK CHAR_TYPE *__simple_wcsncpy( CHAR_TYPE *dst, const CHAR_TYPE *src, size_t len ) |
||
| 88 | #else |
||
| 89 | _WCRTLINK CHAR_TYPE *__F_NAME(strncpy,wcsncpy)( CHAR_TYPE *dst, const CHAR_TYPE *src, size_t len ) |
||
| 90 | #endif |
||
| 91 | { |
||
| 92 | #if defined(M_I86) && !defined(__WIDECHAR__) |
||
| 93 | if( len ) { |
||
| 94 | return( fast_strncpy( dst, src, len ) ); |
||
| 95 | } |
||
| 96 | return( dst ); |
||
| 97 | #else |
||
| 98 | CHAR_TYPE *ret; |
||
| 99 | |||
| 100 | ret = dst; |
||
| 101 | for(;len; --len ) { |
||
| 102 | if( *src == NULLCHAR ) break; |
||
| 103 | *dst++ = *src++; |
||
| 104 | } |
||
| 105 | while( len != 0 ) { |
||
| 106 | *dst++ = NULLCHAR; /* pad destination string with null chars */ |
||
| 107 | --len; |
||
| 108 | } |
||
| 109 | return( ret ); |
||
| 110 | #endif |
||
| 111 | } |