Cross Reference: /src/lib/libc/resolv/res

History log of /src/lib/libc/resolv/res_private.h
Revision	Date	Author	Comments
1.5	23-Jan-2024	christos	fix nested extern warnings
1.4	30-Sep-2021	christos	kqueue(2) file descriptors are not inherited across fork(2). A process that that calls getaddrinfo(3) will end up cacheing the kqueue(2) file descriptor in its res_state structure. If that process fork(2)s and calls getaddrinfo(3) again might end up closing that cached file descriptor which can end up pointing to a different file object than the kqueue(2) original one. To fix this, associate the kqueue(2) file descriptor with the process id that created it, and don't close(2) it if it is being closed from a different process. An alternative fix would be to attach the resolver to a fork(2) hook to cleanup the res_state, but handling it internally in the resolver is less intrusive. This was discovered by Dima Veselov when using the FreeRADIUS package.
1.3	24-Oct-2009	christos	branches: 1.3.48; expose res_check.
1.2	24-Oct-2009	christos	Add a knote to keep track when resolv.conf gets changed and re-initialize. While here fix a memory leak when calling res_vinit with an already inited res_state.
1.1	20-May-2004	christos	branches: 1.1.1; Initial revision
1.1.1.4	12-Apr-2009	christos	libc portion of libbind from external/bsd/libbind
1.1.1.3	30-Mar-2007	ghen	branches: 1.1.1.3.18; 1.1.1.3.22; 1.1.1.3.24; 1.1.1.3.28; Import bind 9.4.0.
1.1.1.2	27-Jan-2007	christos	import resolver portion of bind-9.4.0-rc2
1.1.1.1	20-May-2004	christos	branches: 1.1.1.1.10; 1.1.1.1.12; Import libc portion of the resolver from bind9
1.1.1.3.28.1	09-Jan-2011	riz	Apply patches (requested by spz in ticket #1517): Update bind to 9.7.2-P3.
1.1.1.3.24.1	10-Jan-2011	riz	Apply patches (requested by spz in ticket #1517): Update bind to 9.7.2-P3.
1.1.1.3.22.1	13-May-2009	jym	Sync with HEAD. Third (and last) commit. See http://mail-index.netbsd.org/source-changes/2009/05/13/msg221222.html
1.1.1.3.18.1	06-Jan-2011	riz	Apply patches (requested by spz in ticket #1517): Update bind to 9.7.2-P3.
1.1.1.1.12.1	03-Jun-2007	wrstuden	Catch up with now-somewhat-dated netbsd-4. These changes took longer than expected for me to actually get around to merging.
1.1.1.1.10.2	17-May-2007	jdc	Add missing BIND 9.4.x include file and library changes (requested by tron in ticket #662).
1.1.1.1.10.1	17-May-2007	jdc	Update BIND to version 9.4.1 (requested by christos in ticket #602). Thanks to tron for the patches, upgrade script and testing.
1.3.48.1	05-Oct-2021	martin	Pull up following revision(s) (requested by christos in ticket #1356): lib/libc/resolv/res_init.c: revision 1.32 lib/libc/resolv/res_private.h: revision 1.4 kqueue(2) file descriptors are not inherited across fork(2). A process that that calls getaddrinfo(3) will end up cacheing the kqueue(2) file descriptor in its res_state structure. If that process fork(2)s and calls getaddrinfo(3) again might end up closing that cached file descriptor which can end up pointing to a different file object than the kqueue(2) original one. To fix this, associate the kqueue(2) file descriptor with the process id that created it, and don't close(2) it if it is being closed from a different process. An alternative fix would be to attach the resolver to a fork(2) hook to cleanup the res_state, but handling it internally in the resolver is less intrusive. This was discovered by Dima Veselov when using the FreeRADIUS package.

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