diff options
author | ed <ed@FreeBSD.org> | 2010-01-22 05:09:10 +0000 |
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committer | ed <ed@FreeBSD.org> | 2010-01-22 05:09:10 +0000 |
commit | a14af867093d4252dca678cc2623ff485f5fcf3d (patch) | |
tree | 4e921255cf5820f106bd27508f9adbaf23f7a85a /lib/libc/gen/getutxent.3 | |
parent | e175594ed6eabbf2370dbe1493450a8ed3cd965d (diff) | |
download | FreeBSD-src-a14af867093d4252dca678cc2623ff485f5fcf3d.zip FreeBSD-src-a14af867093d4252dca678cc2623ff485f5fcf3d.tar.gz |
Describe why pututxline() doesn't entirely conform to standards.
Diffstat (limited to 'lib/libc/gen/getutxent.3')
-rw-r--r-- | lib/libc/gen/getutxent.3 | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/lib/libc/gen/getutxent.3 b/lib/libc/gen/getutxent.3 index 58b1280..5098afe 100644 --- a/lib/libc/gen/getutxent.3 +++ b/lib/libc/gen/getutxent.3 @@ -414,14 +414,32 @@ The .Fn endutxent , .Fn getutxent , .Fn getutxid , -.Fn getutxline , -.Fn pututxline +.Fn getutxline and .Fn setutxent functions are expected to conform to .St -p1003.1-2008 . .Pp The +.Fn pututxline +function deviates from the standard by writing its records to multiple +database files, depending on its +.Fa ut_type . +This prevents the need for special utility functions to update the other +databases, such as the +.Fn updwtmpx +function which is often available in other implementations. +It also tries to replace +.Dv DEAD_PROCESS +entries in the active sessions database when storing +.Dv USER_PROCESS +entries and no entry with the same value for +.Fa ut_id +has been found. +The standard always requires a new entry to be allocated, which could +cause an unbounded growth to the database. +.Pp +The .Fn getutxuser and .Fn setutxdb |