strncpy.c,v

来自「用TCP/IP进行网际互连这本书得源代码,偶得,希望大家喜欢.推荐下载」· C,V 代码 · 共 46 行

head	1.1;
access;
symbols;
locks
	dls:1.1; strict;
comment	@ * @;


1.1
date	97.09.21.19.27.40;	author dls;	state Dist;
branches;
next	;


desc
@@


1.1
log
@pre-3e code
@
text
@/*
 * Copy s2 to s1, truncating or null-padding to always copy n bytes
 * return s1
 */

char *
strncpy(s1, s2, n)
register char *s1, *s2;
{
	register i;
	register char *os1;

	os1 = s1;
	for (i = 0; i < n; i++)
		if ((*s1++ = *s2++) == '\0') {
			while (++i < n)
				*s1++ = '\0';
			return(os1);
		}
	return(os1);
}
@