MFV r275696: file 5.21.

MFC after:	 2 weeks

3 files changed, 73 insertions, 5 deletions

diff --git a/contrib/file/doc/Makefile.in b/contrib/file/doc/Makefile.in
index 8d0fa7b..8917487 100644
--- a/contrib/file/doc/Makefile.in
+++ b/contrib/file/doc/Makefile.in
@@ -1,4 +1,4 @@
-# Makefile.in generated by automake 1.14 from Makefile.am.
+# Makefile.in generated by automake 1.14.1 from Makefile.am.
 # @configure_input@
 
 # Copyright (C) 1994-2013 Free Software Foundation, Inc.
diff --git a/contrib/file/doc/file.man b/contrib/file/doc/file.man
index 8e403be..92d0692 100644
--- a/contrib/file/doc/file.man
+++ b/contrib/file/doc/file.man
@@ -1,5 +1,5 @@
-.\" $File: file.man,v 1.106 2014/03/07 23:11:51 christos Exp $
-.Dd December 3, 2014
+.\" $File: file.man,v 1.110 2014/11/28 02:46:39 christos Exp $
+.Dd November 27, 2014
 .Dt FILE __CSECTION__
 .Os
 .Sh NAME
@@ -16,6 +16,7 @@
 .Op Fl F Ar separator
 .Op Fl f Ar namefile
 .Op Fl m Ar magicfiles
+.Op Fl P Ar name=value
 .Ar
 .Ek
 .Nm
@@ -303,6 +304,15 @@ or
 attempt to preserve the access time of files analyzed, to pretend that
 .Nm
 never read them.
+.It Fl P , Fl Fl parameter Ar name=value
+Set various parameter limits.
+.Bl -column "elf_phnum" "Default" "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" -offset indent
+.It Sy "Name" Ta Sy "Default" Ta Sy "Explanation"
+.It Li indir Ta 15 Ta recursion limit for indirect magic
+.It Li name Ta 30 Ta use count limit for name/use magic
+.It Li elf_phnum Ta 128 Ta max ELF program sections processed
+.It Li elf_shnum Ta 32768 Ta max ELF sections processed
+.El
 .It Fl r , Fl Fl raw
 Don't translate unprintable characters to \eooo.
 Normally
diff --git a/contrib/file/doc/libmagic.man b/contrib/file/doc/libmagic.man
index ee9cdb2..537cd7b 100644
--- a/contrib/file/doc/libmagic.man
+++ b/contrib/file/doc/libmagic.man
@@ -1,4 +1,4 @@
-.\" $File: libmagic.man,v 1.28 2014/03/02 14:47:16 christos Exp $
+.\" $File: libmagic.man,v 1.33 2014/11/28 02:46:39 christos Exp $
 .\"
 .\" Copyright (c) Christos Zoulas 2003.
 .\" All Rights Reserved.
@@ -25,7 +25,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd January 6, 2012
+.Dd November 27, 2014
 .Dt LIBMAGIC 3
 .Os
 .Sh NAME
@@ -40,6 +40,9 @@
 .Nm magic_compile ,
 .Nm magic_list ,
 .Nm magic_load ,
+.Nm magic_load_buffers ,
+.Nm magic_setparam ,
+.Nm magic_getparam ,
 .Nm magic_version
 .Nd Magic number recognition library
 .Sh LIBRARY
@@ -71,6 +74,12 @@
 .Ft int
 .Fn magic_load "magic_t cookie" "const char *filename"
 .Ft int
+.Fn magic_load_buffers "magic_t cookie" "void **buffers" "size_t *sizes" "size_t nbuffers"
+.Ft int
+.Fn magic_getparam "magic_t cookie" "int param" "void *value"
+.Ft int
+.Fn magic_setparam "magic_t cookie" "int param" "const void *value"
+.Ft int
 .Fn magic_version "void"
 .Sh DESCRIPTION
 These functions
@@ -253,6 +262,55 @@ adds
 to the database filename as appropriate.
 .Pp
 The
+.Fn magic_load_buffers
+function takes an array of size
+.Fa nbuffers
+of
+.Fa buffers
+with a respective size for each in the array of
+.Fa sizes
+loaded with the contents of the magic databases from the filesystem.
+This function can be used in environment where the magic library does
+not have direct access to the filesystem, but can access the magic
+database via shared memory or other IPC means.
+.Pp
+The
+.Fn magic_getparam
+and
+.Fn magic_setparam
+allow getting and setting various limits related to the the magic
+library.
+.Bl -column "MAGIC_PARAM_ELF_PHNUM_MAX" "size_t" "Default" -offset indent
+.It Sy "Parameter" Ta Sy "Type" Ta Sy "Default"
+.It Li MAGIC_PARAM_INDIR_MAX Ta size_t Ta 15
+.It Li MAGIC_PARAM_NAME_MAX Ta size_t Ta 30
+.It Li MAGIC_PARAM_ELF_PHNUM_MAX Ta size_t Ta 128
+.It Li MAGIC_PARAM_ELF_SHNUM_MAX Ta size_t Ta 32768
+.El
+.Pp
+The
+.Dv MAGIC_PARAM_INDIR_RECURSION
+parameter controls how many levels of recursion will be followed for
+indirect magic entries.
+.Pp
+The
+.Dv MAGIC_PARAM_NAME_RECURSION
+parameter controls how many levels of recursion will be followed for
+for name/use calls.
+.Pp
+The
+.Dv MAGIC_PARAM_NAME_MAX
+parameter controls the maximum number of calls for name/use.
+.Pp
+The
+.Dv MAGIC_PARAM_PHNUM_MAX
+parameter controls how many elf program sections will be processed.
+.Pp
+The
+.Dv MAGIC_PARAM_SHNUM_MAX
+parameter controls how many elf sections will be processed.
+.Pp
+The
 .Fn magic_version
 command returns the version number of this library which is compiled into
 the shared library using the constant