Package: file Version: 1:5.29-1 Severity: important In jessie the default magic path is "/etc/magic:/usr/share/misc/magic":
$ dpkg -l file|cat Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-==================-============-========================================== ii file 1:5.22+15-2+deb8u3 amd64 Determines file type using "magic" numbers $ file -v file-5.22 magic file from /etc/magic:/usr/share/misc/magic $ cat /etc/debian_version 8.7 Somewhere between then and current unstable this has changed to instead look for ~/.magic instead of /etc/magic: $ dpkg -l file|cat Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-============-============-========================================================== ii file 1:5.29-2 amd64 Recognize the type of data in a file using "magic" numbers $ file -v file-5.29 magic file from /home/olly/.magic:/usr/share/misc/magic $ cat /etc/debian_version stretch/sid I can't see any mention of this change in either /usr/share/doc/file/changelog.Debian.gz or /usr/share/doc/file/changelog.gz so it isn't clear to me if this change was intentional or not. But this change is unhelpful (custom magic rules in /etc/magic will quietly no longer be searched). This seems to be a regression of https://bugs.debian.org/279324 and comments there suggest that both the reporter and maintainer thought that searching /etc/magic is the correct and expected behaviour. It looks like the cause is that two hunks were dropped from the patch local.support-local-definitions-in-etc-magic.patch between 5.28-4 and 5.29-1: $ interdiff file-{5.28-4,5.29-1}/debian/patches/local.support-local-definitions-in-etc-magic.patch reverted: --- b/src/Makefile.am +++ a/src/Makefile.am @@ -4,7 +4,7 @@ bin_PROGRAMS = file +AM_CPPFLAGS = -DMAGIC='"$(MAGIC)"' -AM_CPPFLAGS = -DMAGIC='"/etc/magic:$(MAGIC)"' AM_CFLAGS = $(CFLAG_VISIBILITY) @WARNINGS@ libmagic_la_SOURCES = magic.c apprentice.c softmagic.c ascmagic.c \ reverted: --- b/src/Makefile.in +++ a/src/Makefile.in @@ -340,7 +340,7 @@ MAGIC = $(pkgdatadir)/magic lib_LTLIBRARIES = libmagic.la nodist_include_HEADERS = magic.h +AM_CPPFLAGS = -DMAGIC='"$(MAGIC)"' -AM_CPPFLAGS = -DMAGIC='"/etc/magic:$(MAGIC)"' AM_CFLAGS = $(CFLAG_VISIBILITY) @WARNINGS@ libmagic_la_SOURCES = magic.c apprentice.c softmagic.c ascmagic.c \ encoding.c compress.c is_tar.c readelf.c print.c fsmagic.c \ The documentation seems to not exactly match either behaviour - "man file" says: | The information identifying these files is read from /etc/magic and | the compiled magic file /usr/share/misc/magic.mgc, or the files in the | directory /usr/share/misc/magic if the compiled file does not exist. | In addition, if $HOME/.magic.mgc or $HOME/.magic exists, it will be | used in preference to the system magic files. The wording could perhaps be clearer, but that seems to imply that the default should actually be to search: $HOME/.magic:/etc/magic:/usr/share/misc/magic Cheers, Olly -- System Information: Debian Release: stretch/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.7.0-1-amd64 (SMP w/8 CPU cores) Locale: LANG=en_NZ.UTF-8, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages file depends on: ii libc6 2.24-8 ii libmagic1 1:5.29-2 ii zlib1g 1:1.2.8.dfsg-4 file recommends no packages. file suggests no packages. -- no debconf information
signature.asc
Description: PGP signature
