From be47db56fdf19436c14781c0de6977d2b7eaaf3d Mon Sep 17 00:00:00 2001 From: Richard Jones Date: Fri, 6 Mar 2009 13:13:42 +0000 Subject: [PATCH] Imported from CVS. --- .gitignore | 22 +++ AUTHORS | 0 COPYING | 339 +++++++++++++++++++++++++++++++++++++++++++ ChangeLog | 1 + Makefile.am | 43 ++++++ NEWS | 0 auto-br-analyze.pl.in | 105 ++++++++++++++ auto-br-rpmbuild.sh | 21 +++ auto-br.sh.in | 43 ++++++ auto-buildrequires-preload.c | 200 +++++++++++++++++++++++++ auto-buildrequires.spec.in | 48 ++++++ configure.ac | 36 +++++ 12 files changed, 858 insertions(+) create mode 100644 .gitignore create mode 100644 AUTHORS create mode 100644 COPYING create mode 100644 ChangeLog create mode 100644 Makefile.am create mode 100644 NEWS create mode 100755 auto-br-analyze.pl.in create mode 100755 auto-br-rpmbuild.sh create mode 100755 auto-br.sh.in create mode 100644 auto-buildrequires-preload.c create mode 100644 auto-buildrequires.spec.in create mode 100644 configure.ac diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..988f998 --- /dev/null +++ b/.gitignore @@ -0,0 +1,22 @@ +*~ +.deps +.libs +Makefile +Makefile.in +aclocal.m4 +auto-br +auto-br.sh +auto-br-analyze.pl +auto-br-rpmbuild +auto-buildrequires.spec +auto-buildrequires-*.tar.gz +autom4te.cache +compile +config.h +config.h.in +config.log +config.status +configure +install-sh +missing +stamp-h1 diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..e69de29 diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..e77696a --- /dev/null +++ b/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 675 Mass Ave, Cambridge, MA 02139, USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. 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Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. 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The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) 19yy + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/ChangeLog b/ChangeLog new file mode 100644 index 0000000..8b13789 --- /dev/null +++ b/ChangeLog @@ -0,0 +1 @@ + diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..c2df41e --- /dev/null +++ b/Makefile.am @@ -0,0 +1,43 @@ +# Automatic generation of BuildRequires dependencies for rpmbuild. +# Copyright (C) 2008 Red Hat Inc. +# Written by Richard W.M. Jones +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +AM_CFLAGS = -Wall + +libexec_PROGRAMS = auto-buildrequires-preload.so + +auto_buildrequires_preload_so_SOURCES = auto-buildrequires-preload.c +auto_buildrequires_preload_so_CFLAGS = -fPIC -shared +# We need this in LDFLAGS, otherwise automake won't pass it +# on the command line when linking the .so file. +auto_buildrequires_preload_so_LDFLAGS = -ldl + +bin_SCRIPTS = auto-br auto-br-rpmbuild + +auto-br: auto-br.sh + cp $< $@ + chmod +x $@ +auto-br-rpmbuild: auto-br-rpmbuild.sh + cp $< $@ + chmod +x $@ + +CLEANFILES = $(bin_SCRIPTS) + +libexec_SCRIPTS = auto-br-analyze.pl + +EXTRA_DIST = auto-br-analyze.pl.in auto-br.sh.in auto-br-rpmbuild.sh \ + auto-buildrequires.spec auto-buildrequires.spec.in diff --git a/NEWS b/NEWS new file mode 100644 index 0000000..e69de29 diff --git a/auto-br-analyze.pl.in b/auto-br-analyze.pl.in new file mode 100755 index 0000000..9163f53 --- /dev/null +++ b/auto-br-analyze.pl.in @@ -0,0 +1,105 @@ +#!@PERL@ -w +# @configure_input@ +# +# Automatic generation of BuildRequires dependencies for rpmbuild. +# Copyright (C) 2008 Red Hat Inc. +# Written by Richard W.M. Jones +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +use strict; + +use String::ShellQuote; +use File::Temp qw(tempfile); + +if (@ARGV != 1) { + die "auto-br-analyze: logfile parameter missing\n"; +} + +my %files; + +my $homedir = $ENV{HOME}; + +open LOG, "<$ARGV[0]" or die ($ARGV[0], ": $!\n"); + +while () { + if (/^(open|execve) (.+)/) { + my $file = $2; + + # Ignore files which don't exist, and files located in some + # places we ignore (eg. under $HOME). + my ($dev, $ino, $mode) = stat $file; + next unless defined $dev; + next if $homedir && $file =~ /^$homedir/; + + $files{$file} = 1; + } +} + +close LOG; + +# Work out which RPM packages are used. Note we don't care about +# which specific file is owned by which specific package, which allows +# us to do a lot of nice shell magic for the hard work here. +my @owners; + +my ($fh, $filename) = tempfile (); + +my $cmd = + "xargs -0 ". + "rpm -q --qf '%{name} %{epoch} %{version} %{release} %{arch}\n' -f ". + "2>&1 | ". + "grep -v '^file.*is not owned by any package\$' | ". + "grep -v '^error:' | ". + "sort -u > $filename"; +open PIPE, "| $cmd" or die "$cmd: $!"; +print PIPE "$_\0" foreach (sort keys %files); +close PIPE; + +while (<$fh>) { + if (/^(\S+) (\d+|\(none\)) (\S+) (\S+) (\S+)$/) { + my ($rpm, $epoch, $version, $release, $arch) = + ($1, $2, $3, $4, $5); + $epoch = "0" if $epoch eq "(none)"; + push @owners, { + rpm => $rpm, + epoch => $epoch, version => $version, release => $release, + arch => $arch + } + } else { + die "rpm: $_" + } +} + +# Print the list of BuildRequires. + +foreach (@owners) { + my $rpm = $_->{rpm}; + my $epoch = $_->{epoch}; + my $version = $_->{version}; + my $release = $_->{release}; + my $arch = $_->{arch}; + + # Ignore 'rpm', 'rpm-build' and a few others which are introduced + # by the rpmbuild system itself. + next if $rpm eq "rpm" || $rpm eq "rpm-build" || $rpm eq "python" + || $rpm eq "redhat-rpm-config"; + + print "BuildRequires: $rpm = "; + if ($epoch != 0) { + print "$epoch:"; + } + print "$version.$release.$arch\n"; +} diff --git a/auto-br-rpmbuild.sh b/auto-br-rpmbuild.sh new file mode 100755 index 0000000..2580494 --- /dev/null +++ b/auto-br-rpmbuild.sh @@ -0,0 +1,21 @@ +#!/bin/bash - +# +# Automatic generation of BuildRequires dependencies for rpmbuild. +# Copyright (C) 2008 Red Hat Inc. +# Written by Richard W.M. Jones +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +auto-br rpmbuild "$@" diff --git a/auto-br.sh.in b/auto-br.sh.in new file mode 100755 index 0000000..0f868a5 --- /dev/null +++ b/auto-br.sh.in @@ -0,0 +1,43 @@ +#!/bin/bash - +# @configure_input@ +# +# Automatic generation of BuildRequires dependencies for rpmbuild. +# Copyright (C) 2008 Red Hat Inc. +# Written by Richard W.M. Jones +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libexecdir=@libexecdir@ + +logfile=$(pwd)/.$$.autobr.tmp +rm -f $logfile +touch $logfile + +AUTO_BUILDREQUIRES_LOGFILE=$logfile +LD_PRELOAD=$libexecdir/auto-buildrequires-preload.so + +export AUTO_BUILDREQUIRES_LOGFILE LD_PRELOAD +"$@" +status=$? +unset AUTO_BUILDREQUIRES_LOGFILE LD_PRELOAD + +if [ $status -eq 0 ]; then + $libexecdir/auto-br-analyze.pl $logfile +fi + +rm $logfile +exit $status diff --git a/auto-buildrequires-preload.c b/auto-buildrequires-preload.c new file mode 100644 index 0000000..7b9bdc1 --- /dev/null +++ b/auto-buildrequires-preload.c @@ -0,0 +1,200 @@ +/* Automatic generation of BuildRequires dependencies for rpmbuild. + * Copyright (C) 2008 Red Hat Inc. + * Written by Richard W.M. Jones + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* This is an LD_PRELOAD extension which logs accesses to any files by + * trapping access to any system calls which open files. Details of + * opened files are written to the file named in + * the AUTO_BUILDREQUIRES_LOGFILE environment variable. + */ + +#define _GNU_SOURCE + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define ALIAS(ret,syscall,params,brfunc) \ + extern ret syscall params __attribute__((alias (brfunc))) + +static char *br_path (const char *path); +static void br_init (void) __attribute__((constructor)); +static void br_log (const char *fs, ...) __attribute__((format (printf,1,2))); + +/* These are the real glibc symbols, initialized in br_init. */ +static int (*glibc_open) (const char *pathname, int flags, mode_t mode); +static int (*glibc_execve) (const char *filename, char *const argv[], + char *const envp[]); + +/* Canonicalize a relative or absolute path. If that isn't possible, + * return an absolute path. + * + * The caller must free the result. + */ +static char * +br_path (const char *path) +{ + char *dir, *cat, *rp; + int len; + + if (path == NULL) return NULL; + + if (path[0] == '/') { + rp = realpath (path, NULL); + if (!rp) rp = strdup (path); + return rp; + } + + dir = get_current_dir_name (); + if (dir == NULL) return NULL; + + len = strlen (dir) + 1 + strlen (path) + 1; + cat = malloc (len); + if (cat == NULL) { + perror ("malloc"); + abort (); + } + + strcpy (cat, dir); + strcat (cat, "/"); + strcat (cat, path); + + rp = realpath (cat, NULL); + free (dir); + if (!rp) rp = cat; else free (cat); + return rp; +} + +int +abr_open (const char *pathname, int flags, mode_t mode) +{ + int fd; + char *rp; + + rp = br_path (pathname); + if (rp) + br_log ("open %s\n", rp); + else + perror (pathname); + free (rp); + + fd = glibc_open (pathname, flags, mode); + return fd; +} + +ALIAS (int, open, (const char *, int, ...), "abr_open"); + +int +abr_execve (const char *filename, char *const argv[], char *const envp[]) +{ + int r; + char *rp; + + rp = br_path (filename); + if (rp) + br_log ("execve %s\n", rp); + else + perror (filename); + free (rp); + + r = glibc_execve (filename, argv, envp); + return r; +} + +ALIAS (int, execve, (const char *filename, char *const argv[], + char *const envp[]), "abr_execve"); + +/* Other syscalls to consider: + * access + * statfs + * stat, lstat + * chdir + * mkdir + * unlink + * readlink + * 'connect' params can contain a path in some rare circumstances. + */ + +/* This is the logging function. We have to be very cautious in this + * function and not disturb any part of the process (so far as that is + * possible). eg. When we open a file descriptor we must close it + * afterwards. + * + * Any errors should either call abort() if they are serious, or + * return without harm if not. + * + * Also remember to call glibc_* for any syscalls that we are + * intercepting, otherwise you'll get an infinite loop. + */ +static void +br_log (const char *fs, ...) +{ + const char *filename; + int fd, len; + va_list args; + char *msg; + + /* Got the logging environment variable? Should we cleanse this + * variable for security reasons, or is it not a problem because RPM + * specfiles can do arbitrary Bad Stuff already? (XXX) + */ + filename = getenv ("AUTO_BUILDREQUIRES_LOGFILE"); + if (filename == NULL) return; + + fd = glibc_open (filename, O_WRONLY | O_APPEND, 0); + if (fd == -1) { perror ("open logfile"); abort (); } + + /* Create the log string. */ + va_start (args, fs); + len = vasprintf (&msg, fs, args); + if (len == -1) { + perror ("vasprintf"); + abort (); + } + va_end (args); + + /* Write it in a single operation. Should be atomic, right?? (XXX) */ + if (write (fd, msg, len) != len) { + perror ("write"); + abort (); + } + + close (fd); + free (msg); +} + +static void +br_init (void) +{ + void *dl; + + dl = dlopen ("/lib64/libc.so.6", RTLD_LAZY|RTLD_LOCAL); + if (dl == NULL) { + fprintf (stderr, "%s\n", dlerror ()); + abort (); + } + glibc_open = dlsym (dl, "open"); + glibc_execve = dlsym (dl, "execve"); +} diff --git a/auto-buildrequires.spec.in b/auto-buildrequires.spec.in new file mode 100644 index 0000000..7b5e9a7 --- /dev/null +++ b/auto-buildrequires.spec.in @@ -0,0 +1,48 @@ +# @configure_input@ + +Summary: Work out BuildRequires for rpmbuild automatically +Name: auto-buildrequires +Version: @VERSION@ +Release: 2 +License: GPLv2+ +Group: Development/Tools +URL: http://et.redhat.com/~rjones/auto-buildrequires/ +Source0: http://et.redhat.com/~rjones/auto-buildrequires/files/%{name}-%{version}.tar.gz +BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root + + +%description +Auto-BuildRequires is a simple set of scripts for automatically +suggesting BuildRequires lines for programs. + + +%prep +%setup -q + + +%build +%configure +make + + +%install +rm -rf $RPM_BUILD_ROOT +make DESTDIR=$RPM_BUILD_ROOT install + + +%clean +rm -rf $RPM_BUILD_ROOT + + +%files +%defattr(-,root,root,-) +%doc COPYING README +%{_bindir}/auto-br +%{_bindir}/auto-br-rpmbuild +%{_libexecdir}/auto-br-analyze.pl +%{_libexecdir}/auto-buildrequires-preload.so + + +%changelog +* Thu Nov 6 2008 Richard Jones - 0.1-2 +- Initial build. diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..e718416 --- /dev/null +++ b/configure.ac @@ -0,0 +1,36 @@ +# Automatic generation of BuildRequires dependencies for rpmbuild. +# Copyright (C) 2008 Red Hat Inc. +# Written by Richard W.M. Jones +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +AC_INIT(auto-buildrequires,0.1) +AM_INIT_AUTOMAKE + +AC_PROG_INSTALL +AC_PROG_CC +AM_PROG_CC_C_O + +AC_CHECK_PROG([RPM],[rpm],[rpm]) +AC_CHECK_PROG([RPMBUILD],[rpmbuild],[rpm]) + +# XXX Should check for String::ShellQuote and File::Temp modules. +AC_PATH_PROG([PERL],[perl],[/usr/bin/perl]) + +AC_CONFIG_HEADERS([config.h]) +AC_CONFIG_FILES([Makefile + auto-br.sh auto-br-analyze.pl + auto-buildrequires.spec]) +AC_OUTPUT -- 1.8.3.1