newlib-cygwin/newlib/libc/string/strndup_r.c

22 lines
422 B
C

#include <reent.h>
#include <stdlib.h>
#include <string.h>
#define MIN(a,b) ((a) < (b) ? (a) : (b))
char *
_DEFUN (_strndup_r, (reent_ptr, str, n),
struct _reent *reent_ptr _AND
_CONST char *str _AND
size_t n)
{
size_t len = MIN(strlen (str), n);
char *copy = _malloc_r (reent_ptr, len + 1);
if (copy)
{
memcpy (copy, str, len);
copy[len] = '\0';
}
return copy;
}