1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/genericopenlibs/cstdlib/LCHAR/STRNCPY.C Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,80 @@
1.4 +/*
1.5 +* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
1.6 +* All rights reserved.
1.7 +* This component and the accompanying materials are made available
1.8 +* under the terms of "Eclipse Public License v1.0"
1.9 +* which accompanies this distribution, and is available
1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.11 +*
1.12 +* Initial Contributors:
1.13 +* Nokia Corporation - initial contribution.
1.14 +*
1.15 +* Contributors:
1.16 +*
1.17 +* Description:
1.18 +* FUNCTION
1.19 +* <<strncpy>>---counted copy string
1.20 +* INDEX
1.21 +* strncpy
1.22 +* ANSI_SYNOPSIS
1.23 +* #include <string.h>
1.24 +* char *strncpy(char *<[dst]>, const char *<[src]>, size_t <[length]>);
1.25 +* TRAD_SYNOPSIS
1.26 +* #include <string.h>
1.27 +* char *strncpy(<[dst]>, <[src]>, <[length]>)
1.28 +* char *<[dst]>;
1.29 +* char *<[src]>;
1.30 +* size_t <[length]>;
1.31 +* <<strncpy>> copies not more than <[length]> characters from the
1.32 +* the string pointed to by <[src]> (including the terminating
1.33 +* null character) to the array pointed to by <[dst]>. If the
1.34 +* string pointed to by <[src]> is shorter than <[length]>
1.35 +* characters, null characters are appended to the destination
1.36 +* array until a total of <[length]> characters have been
1.37 +* RETURNS
1.38 +* This function returns the initial value of <[dst]>.
1.39 +* PORTABILITY
1.40 +* <<strncpy>> is ANSI C.
1.41 +* <<strncpy>> requires no supporting OS subroutines.
1.42 +* QUICKREF
1.43 +* strncpy ansi pure
1.44 +*
1.45 +*
1.46 +*/
1.47 +
1.48 +
1.49 +
1.50 +#include <string.h>
1.51 +
1.52 +/**
1.53 +Copy characters from one string to another.
1.54 +Copies the first num characters of src to dest.
1.55 +No null-character is implicitly appended to dest after copying process.
1.56 +So dest may not be null-terminated if no null-caracters are copied from src.
1.57 +If num is greater than the length of src, dest is padded with zeros until num.
1.58 +@return dst is returned.
1.59 +@param dst Destination string. Space allocated should be at least
1.60 +num characters long.
1.61 +@param src Null-terminated string.
1.62 +@param n Number of characters to be copied.
1.63 +*/
1.64 +EXPORT_C char *strncpy (char *dst, const char *src, size_t n)
1.65 + {
1.66 + char *dscan;
1.67 + const char *sscan;
1.68 + size_t count;
1.69 +
1.70 + dscan = dst;
1.71 + sscan = src;
1.72 + count = n;
1.73 + while (count > 0)
1.74 + {
1.75 + --count;
1.76 + if ((*dscan++ = *sscan++) == '\0')
1.77 + break;
1.78 + }
1.79 + while (count-- > 0)
1.80 + *dscan++ = '\0';
1.81 +
1.82 + return dst;
1.83 + }