Function acl_default_strndup

lib_acl/src/stdlib/memory/acl_default_malloc.c:459–498

/* acl_default_strndup - save substring to heap */

char *acl_default_strndup(const char *filename, int line,
	const char *str, size_t len)
{
	const char *myname = "acl_default_strndup";
	char *result;
	char *cp;
	const char *pname = NULL;

	if (filename && *filename) {
		SET_FILE(pname, filename);
	} else {
		pname = __FILENAME_UNKNOWN;
	}

	if (str == 0) {
		acl_msg_fatal("%s(%d)->%s: null pointer argument",
			pname, line, myname);
	}

#ifndef NO_SHARED_EMPTY_STRINGS
	if (*str == 0) {
		return (char *) empty_string;
	}
#endif

	if ((cp = (char*) memchr(str, 0, len)) != 0) {
		len = cp - str;
	}

#ifdef 	DEBUG_MEM
	__nstrndup++;
#endif

	result = (char*) acl_default_malloc(pname, line, len + 1);
	if (len > 0) {
		memcpy(result, str, len);
	}
	result[len] = 0;
	return result;
}

/* acl_default_memdup - copy memory */