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lightning-sunbird  0.9+nobinonly
strcpy.c
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
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00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is the Netscape Portable Runtime (NSPR).
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998-2000
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
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00027  * in which case the provisions of the GPL or the LGPL are applicable instead
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00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #include "plstr.h"
00039 #include <string.h>
00040 
00041 PR_IMPLEMENT(char *)
00042 PL_strcpy(char *dest, const char *src)
00043 {
00044     if( ((char *)0 == dest) || ((const char *)0 == src) ) return (char *)0;
00045 
00046     return strcpy(dest, src);
00047 }
00048 
00049 PR_IMPLEMENT(char *)
00050 PL_strncpy(char *dest, const char *src, PRUint32 max)
00051 {
00052     char *rv;
00053     
00054     if( (char *)0 == dest ) return (char *)0;
00055     if( (const char *)0 == src ) return (char *)0;
00056 
00057     for( rv = dest; max && ((*dest = *src) != 0); dest++, src++, max-- )
00058         ;
00059 
00060 #ifdef JLRU
00061     /* XXX I (wtc) think the -- and ++ operators should be postfix. */
00062     while( --max )
00063         *++dest = '\0';
00064 #endif /* JLRU */
00065 
00066     return rv;
00067 }
00068 
00069 PR_IMPLEMENT(char *)
00070 PL_strncpyz(char *dest, const char *src, PRUint32 max)
00071 {
00072     char *rv;
00073     
00074     if( (char *)0 == dest ) return (char *)0;
00075     if( (const char *)0 == src ) return (char *)0;
00076     if( 0 == max ) return (char *)0;
00077 
00078     for( rv = dest, max--; max && ((*dest = *src) != 0); dest++, src++, max-- )
00079         ;
00080 
00081     *dest = '\0';
00082 
00083     return rv;
00084 }