From 07498748d2808e47e4a513f190d74b86c14aa54c Mon Sep 17 00:00:00 2001 From: Markus Duft Date: Thu, 8 Sep 2011 13:09:27 +0200 Subject: build: use getgr*_nomembers functions on Interix Interix provides faster replacements for getgr{gid,nam,ent} where group member information is not fetched from domain controllers. This makes 'id' usable on domain controlled interix boxes. * m4/jm-macros.m4: Check for _nomembers functions. * src/system.h: Redefine function to _nomembers when available. --- src/system.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'src') diff --git a/src/system.h b/src/system.h index ec64cd0d8..18ac0cc9f 100644 --- a/src/system.h +++ b/src/system.h @@ -213,6 +213,24 @@ struct passwd *getpwuid (); struct group *getgrgid (); #endif +/* Interix has replacements for getgr{gid,nam,ent}, that don't + query the domain controller for group members when not required. + This speeds up the calls tremendously (<1 ms vs. >3 s). */ +/* To protect any system that could provide _nomembers functions + other than interix, check for HAVE_SETGROUPS, as interix is + one of the very few (the only?) platform that lacks it */ +#if ! HAVE_SETGROUPS +# if HAVE_GETGRGID_NOMEMBERS +# define getgrgid(gid) getgrgid_nomembers(gid) +# endif +# if HAVE_GETGRNAM_NOMEMBERS +# define getgrnam(nam) getgrnam_nomembers(nam) +# endif +# if HAVE_GETGRENT_NOMEMBERS +# define getgrent() getgrent_nomembers() +# endif +#endif + #if !HAVE_DECL_GETUID uid_t getuid (); #endif -- cgit v1.2.3-70-g09d2