src/common/strlcpy.c

#ifndef lint
static const char       RCSid[] = "$Id: strlcpy.c,v 2.1 2018/01/17 22:36:44 greg Exp $";
#endif
/*
 * String copy routines similar to strncpy
 */

#include "copyright.h"
#include "rtio.h"

size_t
strlcpy(char *dst, const char *src, size_t siz)
{
        size_t  n = siz;

        while (--n > 0)
                if (!(*dst++ = *src++))
                        return(siz-1-n);
        *dst = '\0';
        return(siz-1);
}

size_t
strlcat(char *dst, const char *src, size_t siz)
{
        size_t  n = siz;

        while (*dst && --n > 0)
                ++dst;
        if (n <= 0)
                return(siz);
        return(siz-n + strlcpy(dst, src, n));
}
Revision:	2.2
Committed:	Fri May 4 21:22:44 2018 UTC (6 years ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R2
Changes since 2.1:	+8 -7 lines
Log Message:	Added compatible declarations for strlcpy() and strlcat()
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2	greg	2.2	static const char RCSid[] = "$Id: strlcpy.c,v 2.1 2018/01/17 22:36:44 greg Exp $";
3	greg	2.1	#endif
4			/*
5			* String copy routines similar to strncpy
6			*/
7
8			#include "copyright.h"
9	greg	2.2	#include "rtio.h"
10	greg	2.1
11	greg	2.2	size_t
12			strlcpy(char dst, const char src, size_t siz)
13	greg	2.1	{
14	greg	2.2	size_t n = siz;
15	greg	2.1
16			while (--n > 0)
17			if (!(dst++ = src++))
18			return(siz-1-n);
19			*dst = '\0';
20			return(siz-1);
21			}
22
23	greg	2.2	size_t
24			strlcat(char dst, const char src, size_t siz)
25	greg	2.1	{
26	greg	2.2	size_t n = siz;
27	greg	2.1
28			while (*dst && --n > 0)
29			++dst;
30			if (n <= 0)
31			return(siz);
32			return(siz-n + strlcpy(dst, src, n));
33			}