option_parse_hdr  164 src/libsystemd-network/dhcp6-option.c         r = option_parse_hdr(buf, buflen, optcode, optlen);
option_parse_hdr  239 src/libsystemd-network/dhcp6-option.c         while ((r = option_parse_hdr(buf, buflen, &opt, &optlen)) >= 0) {