Function pkg_nt_str_dup

ut.h:871–893

* Make a copy of an str structure using pkg_malloc * + an additional '\0' byte, so you can make use of dst->s * * dst == src is allowed! */

 * dst == src is allowed!
 */
static inline int pkg_nt_str_dup(str* dst, const str* src)
{
	const str _src = *src;

	if (!_src.s) {
		memset(dst, 0, sizeof *dst);
		return 0;
	}

	dst->s = pkg_malloc(_src.len + 1);
	if (!dst->s) {
		LM_ERR("no private memory left\n");
		dst->len = 0;
		if (dst == src)
			*dst = _src;
		return -1;
	}

	memcpy(dst->s, _src.s, _src.len);
	dst->len = _src.len;
	dst->s[_src.len] = '\0';
	return 0;
}

static inline char *shm_strdup(const char *str)
{