argp-standalone/strndup.c
2021-02-10 16:16:04 -03:00

31 lines
436 B
C

/* strndup.c
*
*/
/* Written by Niels Möller <nisse@lysator.liu.se>
*
* This file is hereby placed in the public domain.
*/
#include <stdlib.h>
#include <string.h>
char *
strndup (const char *s, size_t size)
{
char *r;
char *end = memchr(s, 0, size);
if (end)
/* Length + 1 */
size = end - s + 1;
r = malloc(size);
if (size)
{
memcpy(r, s, size-1);
r[size-1] = '\0';
}
return r;
}