#! /usr/bin/ksh # Current Maintainer: Tim Mooney # # Original Author: Ralph Goers(rgoer@Candle.Com) # Borrowed heavily from H10 version created by Tim Mooney. # This file is distributed under the terms of the GNU Public License # # find-provides is part of RPM, the RedHat Package Manager. find-provides # reads a list of full pathnames (in a package) on stdin, and outputs all # shared libraries provided by (contained in) the package. # # On AIX, use `dump -o' to find what the library provides, if anything. # # # Ralph's comments: # # Executables are skipped because, by convention, shared libraries # which are not dynamically loaded are packaged as archives. Also, # it is impossible to tell the difference between an executable # program and a dynamically loaded shared library. # # Because archives can contain any number of things, including # apparently, multiple shared libraries, dependencies in archives # will be specified as file[member]. Any member in an archive which # has a loader section will be listed as provided. # # Tim's (subsequent) comments: # # Based on discussions on the rpm-list in mid-March of 2000, I've modified # the copy of find-provides that Ralph provided me to use `dump -o' instead # of `dump -H', and I've followed Brandon S. Allbery's suggestions and modified # the awk script to look for a modtype of `RE', which is what constitutes a # shared member of a library. Just like everything else on AIX, libraries are # weird. :-| # # I've followed Ralph's convention of generating provides in the form of # `filebasename(member-object)' *if* there is a member object, or just # `filebasename' if there isn't (such as in the case of certain perl modules, # locally built shared libraries, etc.). # # Example dump output: # #$dump -o /usr/lpp/X11/lib/R6/libX11.a # #/usr/lpp/X11/lib/R6/libX11.a[shr4.o]: # # ***Object Module Header*** ## Sections Symbol Ptr # Symbols Opt Hdr Len Flags # 4 0x00126c28 14557 72 0x3002 #Timestamp = 920377624 #Magic = 0x1df # # ***Optional Header*** #Tsize Dsize Bsize Tstart Dstart #0x000bcc20 0x00024bd4 0x00000e0c 0x00000000 0x00000000 # #SNloader SNentry SNtext SNtoc SNdata #0x0004 0x0000 0x0001 0x0002 0x0002 # #TXTalign DATAalign TOC vstamp entry #0x0005 0x0003 0x00023d74 0x0001 0xffffffff # #maxSTACK maxDATA SNbss magic modtype #0x00000000 0x00000000 0x0003 0x010b RE # #/usr/lpp/X11/lib/R6/libX11.a[shr4net.o]: # # ***Object Module Header*** ## Sections Symbol Ptr # Symbols Opt Hdr Len Flags # 7 0x000006fb 22 72 0x3002 #Timestamp = 774732998 #Magic = 0x1df # # ***Optional Header*** #Tsize Dsize Bsize Tstart Dstart #0x00000084 0x00000088 0x00000000 0x00000200 0x00000000 # #SNloader SNentry SNtext SNtoc SNdata #0x0007 0x0000 0x0002 0x0004 0x0004 # #TXTalign DATAalign TOC vstamp entry #0x0002 0x0003 0x00000080 0x0001 0xffffffff # #maxSTACK maxDATA SNbss magic modtype #0x00000000 0x00000000 0x0005 0x010b RE PATH=/usr/bin:/usr/ccs/bin export PATH # # TVM: Marc Stephenson (marc@austin.ibm.com) points out we run things # like `file', et. al. and expect the output to be what we see in the # C/POSIX locale. Make sure it is so. # LANG=C export LANG # # TVM: Because AIX libraries don't have the equivalent of a SONAME, if you do # # ln -s /usr/lib/libc.a /tmp/libmy_libc_link.a # # and then link your program with `-L/tmp -lmy_libc_link', that's the name # that will be recorded as the BASE in the Import File Strings area. # This means we need to include "symbolic link" in the list of files to check # out. # filelist=`sed "s/['\"]/\\\&/g" | xargs file \ | grep -E 'archive|executable|symbolic link' | cut -d: -f1` for f in $filelist do # # Uncomment the next line for some additional debugging info: #echo "Checking $f" dump -o $f 2>/dev/null | awk ' # TVM: be careful to not use any single quotes, even in comments, # since this entire awk script is enclosed in single quotes. BEGIN { FS = " "; RS = "\n"; # our flag to indicate we found a filename[membername] or # filename. found_file_or_member = 0 # our flag to indicate we found the modtype tag. If so, # we want to look for RE on the next line. found_modtype = 0 # # number of times gsub substituted, used twice below nsub = 0 } # Uncomment the next line for some debugging info. # { print NR , ":", $0 } found_modtype == 1 && found_file_or_member == 1 { if ( $0 ~ / RE/ ) { # we have seen a filename, we have seen a modtype line, and now # we know that the modtype is RE. Print out the member name. # # Note that member names generally look like foo[bar.o], and # since the RPM standard has become to use parens, we will # translate the [ and ] into ( and ) in the output stream. # awk on AIX 4 has sub() and gsub(), so we can use them to do # it. If this script is adapted for use on some other platform # make sure that awk on that platform has sub/gsub. If not, # you will need to postprocess the output stream (probably before # the sort -u) with tr or sed. nsub = gsub(/\[/, "(", member) if ( nsub > 1 ) { print "substituted too many times for [:", member | "cat 1>&2" } nsub = gsub(/\]/, ")", member) if ( nsub > 1 ) { print "substituted too many times for ]:", member | "cat 1>&2" } print member } # In any case, reset our flags to zero, to indicate we are done # with this member, so we are ready to handle additional members # if needed. found_file_or_member = 0 found_modtype = 0 } found_file_or_member == 1 && /magic *modtype/ { # we have seen a filename, and now we have seen the modtype # line. Set the found_modtype flag. The next line of input # will be caught by the rule above, and we will print out # the member if the modtype is RE. found_modtype = 1 } /:$/ { numfields = split($0,fields, "/") # chop off the trailing colon fieldlen = length(fields[numfields])-1 member= substr(fields[numfields], 1, fieldlen) # Set the flat to indicate we found a file or a file(member). found_file_or_member = 1 } ' # end of awk done | sort -u #comment out the previous line and uncomment the next line when debugging #done