Commit Graph

14 Commits

Author SHA1 Message Date
Craig Rodrigues
695ba2f98a Include stdlib.h to get devname() prototype.
Eliminates -Wmissing-prototypes warnings with gcc
2015-08-31 19:40:54 +00:00
Ed Schouten
9f365aa1d6 Get rid of major/minor number distinction.
As of FreeBSD 6, devices can only be opened through devfs. These device
nodes don't have major and minor numbers anymore. The st_rdev field in
struct stat is simply based a copy of st_ino.

Simply display device numbers as hexadecimal, using "%#jx". This is
allowed by POSIX, since it explicitly states things like the following
(example taken from ls(1)):

	"If the file is a character special or block special file, the
	size of the file may be replaced with implementation-defined
	information associated with the device in question."

This makes the output of these commands more compact. For example, ls(1)
now uses approximately four columns less. While there, simplify the
column length calculation from ls(1) by calling snprintf() with a NULL
buffer.

Don't be afraid; if needed one can still obtain individual major/minor
numbers using stat(1).
2011-09-28 18:53:36 +00:00
Ed Schouten
49e5c8f314 Perform some cleanups to devname(3).
- Make sure the mode argument is either a character or a block device.
- Use S_IS*() instead of checking S_IF*-flags by hand.
- Don't use kern.devname when the argument is already NODEV.
- Always call snprintf with the proper amount of arguments corresponding
  with the format.
- Perform some whitespace fixes. Tabs instead of 4 spaces, missing space
  for return statement.
- Remove unneeded includes.
2010-01-31 14:51:04 +00:00
Warner Losh
c879ae3536 Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.
2007-01-09 00:28:16 +00:00
Stefan Farfeleder
613100918d Include a couple of headers to ensure consistency between the prototype and
the function definition.
2005-09-12 19:52:42 +00:00
Poul-Henning Kamp
529ac58781 Add devname_r(3) which takes a buffer as argument. 2003-06-20 09:52:27 +00:00
Poul-Henning Kamp
c6dd496cd9 Recognize the magic NODEV value.
Format other unknown devices consistently in hex.
2003-06-05 21:55:57 +00:00
David E. O'Brien
ea8d448a92 Fix SCM ID's. 2002-02-01 00:57:29 +00:00
Thomas Moestl
d35bce02ee Correct the old length argument passed to sysctlbyname to be a pointer
to a size_t (not to an int).

MFC after:	2 days
2001-07-29 22:01:55 +00:00
Daniel Eischen
d201fe46e3 Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions.  If the threads library is linked in, the real
pthread functions will pulled in.

Use the following convention for system calls wrapped by the
threads library:
	__sys_foo - actual system call
	_foo - weak definition to __sys_foo
	foo - weak definition to __sys_foo

Change all libc uses of system calls wrapped by the threads
library from foo to _foo.  In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde).  All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes.  <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h  namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.

Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE.  We have recursive mutexes, but would like to avoid
using them if possible.

Remove uneeded includes of <errno.h> from a few files.

Add $FreeBSD$ to a few files in order to pass commitprep.

Approved by:	-arch
2001-01-24 13:01:12 +00:00
Poul-Henning Kamp
3cea595248 Pickup SPECNAMELEN from <sys/param.h> and use it.
A missing _PATH_DEVDB ("/var/run/dev.db") is not cause for a warning
anymore, the file is effectively optional these days.
2000-09-16 21:58:53 +00:00
Poul-Henning Kamp
8d25eb2c3a Add code to devname(3) so it can find the names of devices which
were not present when dev_mkdb(8) was run.

First the dev_mkdb(8) database is searched, this caters for non-DEVFS
cases where people have renamed a device.

If that fails we ask the kernel using sysctl kern.devname if the device
driver has put a name in the dev_t.  This covers DEVFS cloned devices.

If that also fails we format a string which isn't entirely useless.
2000-09-09 11:39:59 +00:00
Poul-Henning Kamp
9d4ee2f2ef Make devname(3) return something more intelligent than NULL if it doesn't
find anything in the database.
1999-07-18 10:19:48 +00:00
Peter Wemm
662909a780 Import CSRG 4.4BSD-Lite2 lib/libc onto vendor branch 1997-03-11 11:29:42 +00:00