Function acl_vstring_memcat

lib_acl/src/stdlib/acl_vstring.c:585–618

/* acl_vstring_memcat - append buffer of limited length */

ACL_VSTRING *acl_vstring_memcat(ACL_VSTRING *vp, const char *src, size_t len)
{
	if (len > 0) {
		ssize_t n;

		if (len >= 100000000) {
			acl_msg_warn("%s(%d): len=%ld maybe too large",
				__FUNCTION__, __LINE__, (long) len);
		}

		ACL_VSTRING_SPACE(vp, (ssize_t) len);
		n = acl_vstring_avail(vp);

		if ((size_t) n >= len) {
			n = (ssize_t) len;
		} else {
			acl_msg_warn("%s(%d): space not enough, avail: %ld, "
				"len: %ld", __FUNCTION__, __LINE__,
				(long) n, (long) len);
		}

		if (n > 0 ) {
			memcpy(acl_vstring_end(vp), src, n);
			n += (ssize_t) ACL_VSTRING_LEN(vp);
			ACL_VSTRING_AT_OFFSET(vp, n);
		} else {
			acl_msg_warn("%s(%d): no space, avail: 0, len: %ld",
				__FUNCTION__, __LINE__, (long) len);
		}
	}

	ACL_VSTRING_TERMINATE(vp);
	return vp;
}

/* acl_vstring_memchr - locate byte in buffer */