diff options
| author |   jmc <jmc@openbsd.org> | 2017-09-20 10:03:34 +0000 |
|---|---|---|
| committer | jmc <jmc@openbsd.org> | 2017-09-20 10:03:34 +0000 |
| commit | d4ff681c3c44b4e31236676e3c72def62a913daa (patch) | |
| tree | 5b1f8e2a8bad60d31e9e88b787645cf267809466 /usr.bin/file | |
| parent | Use strsignal in debug message instead of casting for the benefit of (diff) | |
| download | wireguard-openbsd-d4ff681c3c44b4e31236676e3c72def62a913daa.tar.xz wireguard-openbsd-d4ff681c3c44b4e31236676e3c72def62a913daa.zip | |
add missing types; from klemens nanni
ok nicm
Diffstat (limited to 'usr.bin/file')
| -rw-r--r-- | usr.bin/file/magic.5 | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/usr.bin/file/magic.5 b/usr.bin/file/magic.5 index 812c4c31095..be8dcd9b230 100644 --- a/usr.bin/file/magic.5 +++ b/usr.bin/file/magic.5 @@ -1,4 +1,4 @@ -.\" $OpenBSD: magic.5,v 1.17 2016/04/24 07:02:07 jmc Exp $ +.\" $OpenBSD: magic.5,v 1.18 2017/09/20 10:03:34 jmc Exp $ .\" .\" @(#)$FreeBSD: src/usr.bin/file/magic.5,v 1.11 2000/03/01 12:19:39 sheldonh Exp $ .\" @@ -30,7 +30,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd $Mdocdate: April 24 2016 $ +.Dd $Mdocdate: September 20 2017 $ .Dt MAGIC 5 .Os .\" install as magic.4 on USG, magic.5 on V7, Berkeley and Linux systems. @@ -41,10 +41,9 @@ This manual page documents the format of the magic file as used by the .Xr file 1 -command, version 4.24. -The +command. .Xr file 1 -command identifies the type of a file using, +identifies the type of a file using, among other tests, a test for whether the file contains certain .Dq "magic patterns" . @@ -218,6 +217,28 @@ This is intended to be used with the test .Em x (which is always true) and a message that is to be used if there are no other matches. +.It Dv clear +This test is always true and clears the match flag for that level. +It is intended to be used with the default test. +.It Dv name +Define a named magic instance that can be called from another +.Dv use +magic entry, like a subroutine call. +Named instance direct magic offsets are relative to the offset of the +previous matched entry, but indirect offsets are relative to the +beginning of the file as usual. +Named magic entries always match. +.It Dv use +Recursively call the named magic starting from the current offset. +If the name of the referenced instance begins with a +.Dv ^ +then the endianness of the magic is switched; if the magic mentioned +.Dv leshort +for example, +it is treated as +.Dv beshort +and vice versa. +This is useful to avoid duplicating the rules for different endianness. .El .Pp Each top-level magic pattern (see below for an explanation of levels) |