src/common/strlcpy.c

#ifndef lint
static const char       RCSid[] = "$Id: strlcpy.c,v 2.2 2018/05/04 21:22:44 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';
        while (*src++)
                ++siz;
        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+strlen(src));
        return(siz-n + strlcpy(dst, src, n));
}
Revision:	2.3
Committed:	Thu Nov 7 23:19:12 2019 UTC (5 years, 11 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad6R0, rad5R4, rad5R3, HEAD
Changes since 2.2:	+4 -2 lines
Log Message:	Corrected count output in stdlib replacements
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2	greg	2.3	static const char RCSid[] = "$Id: strlcpy.c,v 2.2 2018/05/04 21:22:44 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	greg	2.3	while (*src++)
21			++siz;
22	greg	2.1	return(siz-1);
23			}
24
25	greg	2.2	size_t
26			strlcat(char dst, const char src, size_t siz)
27	greg	2.1	{
28	greg	2.2	size_t n = siz;
29	greg	2.1
30			while (*dst && --n > 0)
31			++dst;
32			if (n <= 0)
33	greg	2.3	return(siz+strlen(src));
34	greg	2.1	return(siz-n + strlcpy(dst, src, n));
35			}