Date: Wed, 11 Feb 2009 20:24:59 +0000 (UTC) From: Ed Schouten <ed@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/include stdlib.h src/lib/libc/gen Makefile.inc Symbol.map devname.3 fdevname.c ttyname.c src/lib/libc/stdlib ptsname.c Message-ID: <200902112028.n1BKS8CF090561@repoman.freebsd.org>
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ed 2009-02-11 20:24:59 UTC
FreeBSD src repository
Modified files:
include stdlib.h
lib/libc/gen Makefile.inc Symbol.map devname.3
ttyname.c
lib/libc/stdlib ptsname.c
Added files:
lib/libc/gen fdevname.c
Log:
SVN rev 188497 on 2009-02-11 20:24:59Z by ed
Add two new routines: fdevname() and fdevname_r().
A more elegant way of obtaining a name of a character device by its file
descriptor on FreeBSD, is to use the FIODGNAME ioctl. Because a valid
file descriptor implies a file descriptor is visible in /dev, it will
always resolve a valid device name.
I'm adding a more friendly wrapper for this ioctl, called fdevname(). It
is a lot easier to use than devname() and also has better error
handling. When a device name cannot be resolved, it will just return
NULL instead of a generated device name that makes no sense.
Discussed with: kib
Revision Changes Path
1.69 +2 -0 src/include/stdlib.h
1.141 +3 -1 src/lib/libc/gen/Makefile.inc
1.17 +2 -0 src/lib/libc/gen/Symbol.map
1.20 +24 -2 src/lib/libc/gen/devname.3
1.1 +54 -0 src/lib/libc/gen/fdevname.c (new)
1.25 +2 -12 src/lib/libc/gen/ttyname.c
1.2 +3 -5 src/lib/libc/stdlib/ptsname.c
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