Retro68/gcc/newlib/libc/string/strndup_r.c
2012-03-27 01:51:53 +02:00

28 lines
450 B
C

#include <reent.h>
#include <stdlib.h>
#include <string.h>
char *
_DEFUN (_strndup_r, (reent_ptr, str, n),
struct _reent *reent_ptr _AND
_CONST char *str _AND
size_t n)
{
_CONST char *ptr = str;
size_t len;
char *copy;
while (n-- > 0 && *ptr)
ptr++;
len = ptr - str;
copy = _malloc_r (reent_ptr, len + 1);
if (copy)
{
memcpy (copy, str, len);
copy[len] = '\0';
}
return copy;
}