Defined in 4 files as a macro:
- contrib/tcpdump/nameser.h, line 278 (as a macro)
- contrib/telnet/telnet/telnet.c, line 2402 (as a macro)
- crypto/heimdal/appl/telnet/telnet/telnet.c, line 2382 (as a macro)
- include/arpa/nameser_compat.h, line 199 (as a macro)