Annotation of loncom/build/check-rpms, revision 1.3
1.1 harris41 1: #!/usr/bin/perl
2: #
1.3 ! harris41 3: # check-rpms, version 2.1.1
1.1 harris41 4: # Martin Siegert, SFU, siegert@sfu.ca, Feb 02
5: #
1.2 harris41 6: =pod
7:
8: =head1 NAME
9:
10: check-rpms - compare installed rpms with up-to-date distribution
11:
12: =head1 DESCRIPTION
13:
14: I<check-rpms> compares installed RPM packages (listed by the command
15: "rpm -qa") on a Linux system with an up-to-date distribution. That
16: distribution may either reside in a local directory (possibly NFS
17: mounted) or on a ftp server. If the B<-ftp> option is specified,
18: I<check-rpms> retrieves directory listings from the I<ftpserver>'s
19: I<directory>/<arch> directories, where <arch> is set to noarch, i386,
20: i586, i686, and athlon consecutively. If I<ftpserver/directory> is
21: not specified, $FTPSERVER/$FTPUPDATES is used. The $FTPSERVER and
22: $FTPUPDATES variables can be set in the configuration file. If
23: either of the two is not set, the default server "updates.redhat.com"
24: and the default directory "$RHversion/en/os" is used,
25: where $RHversion is obtained from the /etc/redhat-release file. If
26: run with the B<-ftp> option, all rpm packages that need to be downloaded
27: (see the B<--download>, B<--recheck>, and B<--update> options) will
28: be downloaded into the directory specified by the B<-d> directory
29: option. If that option is omitted the $RPMDIR directory is used.
30: The $RPMDIR variable that can be set in the configuration file. If
31: $RPMDIR variable is not set either, the default directory
32: "/mnt/redhat/RedHat/RPMS" is used.
33:
34: If the B<-ftp> is omitted, it is assumed that B<-d> I<directory> specifies
35: a local directory that contains up-to-date rpm packages. If B<-d>
36: I<directory> is omitted as well, the $RPMDIR directory is used. If
37: $RPMDIR is not set, the default directory "/mnt/redhat/Red-
38: Hat/RPMS" is used.
39:
40: I<check-rpms> uses a lexical sort on the version string and the
41: release string of the package in order to decide whether the
42: installed package or the package form the distribution is newer.
43: I<check-rpms> lists packages of the distribution that are found to be
44: newer than the installed packages or, if B<--update> is specified,
45: will update the packages using the "rpm -Fvh <list of packages>"
46: command. In the latter case I<check-rpms> must be run as root. Fur-
47: thermore, the $RPMUSER variable should be set to a non-root user-
48: name (see the B<-c> option below). I<check-rpms> will switch to that
49: user and run most of the script under that user id.Only the
50: final "rpm -Fvh ..." command will be run as root. If $RPMUSER is
51: not set, the "nobody" user id will be used. It is recommended to
52: set $RPMUSER to an ordinary username (such as yourself). Further-
53: more, if a ftp server is used, create the download directory
54: (which is specified in the B<-d> directory option or in the $RPMDIR
55: variable), change the owner ship of that directory to that user,
56: and set the permissions to 700 before running I<check-rpms> with the
57: B<--update> option. Note, that B<--update> implies the B<--no-kernel>
58: option, i.e., I<check-rpms> refuses to update the kernel directly.
59:
60: =cut
61:
1.1 harris41 62: # ************ WARNING *****************************************************
63: # THIS PROGRAM IS PROVIDED "AS IS" WITHOUT
64: # WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLICIT.
65: # IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
66: # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
67: # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
68: # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
69: # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
70: # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
71: # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
72: # SUCH DAMAGE.
73: # **************************************************************************
74:
75: # check-rpms.pl is free software; you can redistribute it and/or modify
76: # it under the terms of the GNU General Public License as published by
77: # the Free Software Foundation; either version 2 of the License, or
78: # (at your option) any later version.
79: #
80: # check-rpms.pl is distributed in the hope that it will be useful,
81: # but WITHOUT ANY WARRANTY; without even the implied warranty of
82: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
83: # GNU General Public License for more details:
84: # http://www.gnu.org/licenses/gpl.html
85:
86: use Getopt::Long;
87:
88: my $retval = &GetOptions("verbose|v","lm|list-missing","lq|list-questionable",
89: "dir|d=s","ftp:s","noftp","download|dl","recheck|r",
90: "nk|no-kernel","update","c=s");
91:
1.2 harris41 92: =pod
93:
94: =head1 OPTIONS
95:
96: =over 4
97:
98: =item B<-v> B<--verbose>
99:
100: verbose mode: prints additional progress information on
101: standard output
102:
103: =item B<-ftp> [I<ftpserver/directory>]
104:
105: compare the installed packages with the rpm packages found
106: on the ftp server I<ftpserver> in the directories I<directory>/<arch>,
107: where arch is set to noarch, i386, i586, i686,
108: and athlon consecutively. If I<ftpserver/directory> is not
109: specified, the $FTPSERVER and $FTPUPDATES variables are
110: checked. These variables can be set in the configuration
111: file (see the B<-c> option below). If those variables are not
112: set either, the default server "updates.redhat.com" and the
113: default directory "$RHversion/en/os" is used, where $RHversion
114: is obtained from the I</etc/redhat-release> file.
115:
116: =item B<-noftp>
117:
118: use a local directory as the source for new rpm packages
119: even if the $FTP veriable is set to 1 in the configuration
120: file.
121:
122: =item B<-d> I<directory> B<--rpm-directory> I<directory>
123:
124: if B<-ftp> is specified download all rpm packages that need to
125: be downloaded into I<directory>. If B<-ftp> is not specified,
126: regard the rpm packages found in I<directory> as an up-to-date
127: distribution against which the installed packages are
128: compared to.
129:
130: =item B<-lm> B<--list-missing>
131:
132: list installed packages that do not have an equivalent in
133: the up-to-date distribution. This will generate lots of
134: output when the comparison is made with the updates directory
135: of a ftp server.
136:
137: =item B<-lq> B<--list-questionable>
138:
139: list packages for which the lexical sort algorithm does not
140: give a conclusive result on whether the installed package
141: is older than the package in the distribution. These are
142: packages that have version and/or release strings that contain
143: letters. For example, it is not absolutely clear
144: whether the version 1.2.3b is actually newer or older than
145: 1.2.3. The lexical sort would classify 1.2.3b to be newer
146: than 1.2.3; with B<-lq> specified the package would be listed
147: in any case. See also B<--recheck> below.
148:
149: =item B<-dl> B<--download>
150:
151: download packages from the remote ftp server that are found
152: to be newer than installed packages into the directory that
153: is specified in the B<-d> I<directory> option or in the $RPMDIR
154: variable or, if neither of the two are specified, into
155: "/mnt/redhat/RedHat/RPMS". If the download directory does
156: not exist, I<check-rpms> will create it.
157:
158: =item B<-r> B<--recheck>
159:
160: Use the "rpm -Uvh --test --nodeps <package>" command to
161: check all packages that have letters in their version
162: and/or release string; B<--recheck> implies B<--list-questionable>
163: (see above). At the time of writing (Feb. 2002) there
164: is one known case for which the lexical sort algorithm
165: fails to detect a new package: mutt-1.2.5.1 was released to
166: replace mutt-1.2.5i, however, the lexical sort algorithm
167: incorrectly classifies mutt-1.2.5i to be newer than
168: mutt-1.2.5.1. In this case using the B<--recheck> option is
169: essential. In all other cases it is not. It is nevertheless
170: probably a good idea to use B<--recheck> at least once in a
171: while. B<--recheck> can increase the run-time of I<check-rpms>
172: substantially, particularly if a ftp server is used. In
173: that case the questionable packages must be downloaded from
174: the server into a directory I<directory> (as specified in the
175: -d option or the $RPMDIR variable) which will be created,
176: if it does not exist.
177:
178: =item B<-nk> B<--no-kernel>
179:
180: do not list kernel packages. That is, kernel, kernel-smp,
181: kernel-enterprise, kernel-BOOT, and kernel-debug will not
182: be checked and listed. However, kernel-headers and kernel-source
183: will be checked. The B<--update> option (see below)
184: implies B<--no-kernel>.
185:
186: =item B<--update>
187:
188: update all packages that were found to have newer versions.
189: For this to work I<check-rpms> must be run as root and a suitable
190: $RPMUSER must exist (see DESCRIPTION above). It is
191: strongly advisable to do a dry run B<check-rpms -v -lq> before
192: running B<check-rpms --update>.
193:
194: =item B<-c> I<configurationfile>
195:
196: The optional configuration file to use. This file can be
197: used to specify the $RPMDIR variable, the $FTP, $FTPSERVER,
198: and $FTPUPDATES, variables, and the $RPMUSER variable. An
199: example configuration file is given below. If the B<-c> option
200: is omitted, I<check-rpms> will use the default configuration
201: file I</usr/local/etc/check-rpms.conf>, if it exists.
202:
203: =back
204:
205: =head1 EXAMPLES
206:
207: =over 4
208:
209: =item check-rpms
210:
211: will 1) check whether /usr/local/etc/check-rpms.conf exists; 2) if
212: it does it will read the variables specified in that file, if it
213: doesn't exist, $RPMDIR is set to /mnt/redhat/RedHat/RPMS; 3) if
214: $RPMDIR is set, this directory will be regarded as the source of
215: the up-to-date distribution, unless $FTP is set to 1. In that latter
216: case the $FTPSERVER and $FTPUPDATES are used, if those variables are
217: set. Otherwise "updates.redhat.com" and "<RHversion>/en/os"
218: will be used; 4) the installed packages are compared
219:
220: =item check-rpms -v -lq -d /mnt/redhat/7.1/RedHat/RPMS
221:
222: will use the distribution in the directory /mnt/redhat/7.1/RedHat/RPMS
223: for comparison with the installed packages. The command
224: will give more detailed information on its progress and will list
225: the packages that need upgrading and in another section it will
226: list packages they may need to be upgraded.
227:
228: =item check-rpms -v -lq -ftp updates.redhat.com/7.1/en/os
229:
230: same as above, but the directories 7.1/en/os/noarch,
231: 7.1/en/os/i386, 7.1/en/os/i586, 7.1/en/os/i686, and
232: 7.1/en/os/athlon on updates.redhat.com will be searched for new
233: packages.
234:
235: =item check-rpms -v -r --updates
236:
237: will use the default location for updated packages (determined as
238: indicated in the first example); if a ftp server is used, it will
239: download all newer and all packages with letters in the version
240: and/or release strings (i.e., "questionable" packages) from that
241: ftp server, recheck the questionable packages, and finally update
242: all packages that need to be updated.
243:
244: =back
245:
246: =cut
247:
1.1 harris41 248: if ( $retval == 0 ) {
249: usage();
250: }
251:
252: # executables
253: $FTPLS = "ncftpls";
254: $FTPGET = "ncftpget";
255: $GREP = "grep";
256:
257: # default values
258: $RHversion = (split /\s/, `cat /etc/redhat-release`)[4];
259: $DEFCONF = "/usr/local/etc/check-rpms.conf";
260: $DEFRPMDIR = "/mnt/redhat/RedHat/RPMS";
261: $DEFFTPSERVER = "updates.redhat.com";
262: $DEFFTPUPDATES = "$RHversion/en/os";
263: $DEFRPMUSER = "nobody";
264:
265: $RPMDIR=$DEFRPMDIR;
266:
267: # configuration
268: # the configuration file should set the $RPMDIR variable and/or $FTPSERVER,
269: # $FTPUPDATES and $DOWNLOADDIR variables, and the $RPMUSER variable.
270: if ($opt_c) {
271: $CONF = $opt_c;
272: } else {
273: $CONF = $DEFCONF;
274: }
275:
1.2 harris41 276: =pod
277:
278: =head1 The Configuration File
279:
280: All variables must be defined using perl syntax, i.e., in the form
281:
282: $variable = value;
283:
284: (do not forget the semicolon at the end of a line). Comments
285: start with "#" and blank lines may be included as well.
286:
287: Example configuration file:
288:
289: # check-rpms configuration file
290:
291: # $RPMDIR is the directory where up-to-date RPMs can be found and/or
292: # rpm packages are downloaded into.
293: $RPMDIR = "/mnt/redhat/RedHat/RPMS";
294:
295: # $RPMUSER is the user name that check-rpms switches to for most of
296: # the script when run as root
297: $RPMUSER = "joe";
298:
299: # $FTPSERVER and $FTPUPDATES are the hostname of a ftp server and the
300: # directory where RPM updates can be found without the <arch> directory.
301: # I.e., $FTPUPDATES should be set to something like pub/7.2, if the RPMs
302: # are located in pub/7.2/i386, pub/7.2/i686, etc.
303: # $FTPSERVER and $FTPUPDATES are used if -ftp is specified or if the following
304: # line is uncommented.
305: # $FTP = 1;
306: $FTPSERVER = "updates.redhat.com";
307: $FTPUPDATES = "7.2/en/os";
308:
309: =cut
310:
1.1 harris41 311: if ( -f $CONF) {
312: require($CONF);
313: } else {
314: $FTPSERVER = $DEFFTPSERVER;
315: $FTPUPDATES = $DEFFTPUPDATES;
316: }
317:
318: # check whether we are running as root
319: if ($< == 0){
320: if (! $RPMUSER) {
321: $RPMUSER = $DEFRPMUSER;
322: }
323: $RPMUID = getpwnam($RPMUSER);
324: if (! $RPMUID) {
325: die "You do not seem to have a $RPMUSER user on your system.\nSet the \$RPMUSER variable in the $CONF configuration file to a non-root user.\n";
326: }
327: if ($RPMUID == 0) {
328: die "You must set the \$RPMUSER variable in $CONF to a non-root user.\n";
329: }
330: # switch to $RPMUID
331: $> = $RPMUID;
332: if ($> != $RPMUID) { die "switching to $RPMUID uid failed.\n" }
333: }
334:
335: # command-line arguments
336: $verbose = $opt_verbose;
337: $list_missing = $opt_lm;
338: $questionable = $opt_lq;
339: $no_kernel = $opt_nk;
340: $download = $opt_download;
341: $recheck = $opt_recheck;
342: $update = $opt_update;
343:
344: if (defined $opt_update && $< != 0) {
345: die "You must be root in order to update rpms.\n";
346: }
347:
348: if ( defined $opt_dir ){
349: $RPMDIR = $opt_dir;
350: }
351:
352: if (defined $opt_ftp && defined $opt_noftp) {
353: die "Setting -ftp and -noftp does not make sense, does it?\n";
354: }
355:
356: if (defined $opt_noftp) { $FTP = 0; }
357:
358: if (defined $opt_ftp || $FTP) {
359: $ftp = 1;
360: if ( $opt_ftp ) {
361: $_ = $opt_ftp;
362: ($FTPSERVER, $FTPUPDATES) = m/^([^\/]+)\/(.*)$/;
363: } elsif ( ! ($FTPSERVER && $FTPUPDATES)) {
364: $FTPSERVER = $DEFFTPSERVER;
365: $FTPUPDATES = $DEFFTPUPDATES;
366: }
367:
368: if (defined $opt_update){
369: $download=1;
370: }
371:
372: if ($download || $recheck) {
373: if ( ! -d $RPMDIR) {
1.3 ! harris41 374: if ($verbose) { print "Creating $RPMDIR ...\n"; }
! 375: if ($< == 0) {
! 376: $retval = system("su $RPMUSER -c \'mkdir -p $RPMDIR\'; chmod 700 $RPMDIR");
! 377: } else {
! 378: $retval = system("mkdir -p $RPMDIR; chmod 700 $RPMDIR");
! 379: }
1.1 harris41 380: if ($retval) { die "error: could not create $RPMDIR\n"; }
381: }
382: }
383: } elsif ( (! -d $RPMDIR) || system("ls $RPMDIR/*.rpm > /dev/null 2>&1")) {
384: die "Either $RPMDIR does not exist or it does not contain any packages.\n";
385: }
386:
387: if ($recheck) {
388: $questionable=1;
389: }
390:
391: if (defined $opt_update || defined $opt_nk) {
392: $no_kernel=1;
393: }
394:
395: $PROC = `grep -i athlon /proc/cpuinfo`;
396: if ( ! "$PROC" ) {
397: $PROC = `uname -m`;
398: chomp($PROC);
399: } else {
400: $PROC = "athlon";
401: }
402:
403: @ARCHITECTURES = ("noarch", "i386", "i586", "i686");
404: if ( $RHversion > 7.0 ){
405: push(@ARCHITECTURES, "athlon");
406: }
407:
408: # get the local list of installed packages
409:
410: if ($verbose) {
411: print "updates for $PROC processor, RH $RHversion\n";
412: print "Getting list of installed packages\n";
413: }
414:
415: if ($< == 0) {
416: @local_rpm_list = `su $RPMUSER -c 'rpm -qa'`;
417: } else {
418: @local_rpm_list = `rpm -qa`;
419: }
420: chop(@local_rpm_list);
421:
422: %local_rpm = %remote_rpm = ();
423:
424: for (@local_rpm_list) {
425: # good place to test the regular expressions...
426: # ($pkg, $ver, $release) = m/^(.*)-([^-]*)-([^-]+)/;
427: # print "$_\t->$pkg, $ver, $release\n";
428:
429: my ($pkg, $pver) = m/([^ ]*)-([^-]+-[^-]+)/;
430: $local_rpm{$pkg} = $pver;
431: }
432:
433: # now connect to the remote host
434:
435: my @templist;
436: if ($ftp) {
437: if ( `rpm -q ncftp --pipe "grep 'not installed'"` ) {
438: die "you must have the ncftp package installed in order to use a\n",
439: "ftp server with check-rpms.\n";
440: }
441: $SOURCE = $FTPSERVER;
442: for (@ARCHITECTURES) {
443: my $FTPDIR = "$FTPUPDATES/$_";
444: if ($verbose) {
445: print ("Getting package lists from $FTPSERVER/$FTPDIR ...\n");
446: }
447: push(@templist, grep(/\.rpm$/, `$FTPLS -x "-1a" "ftp://$FTPSERVER/$FTPDIR/"`));
448: if ($?) { print STDERR "$FTPLS failed with status ",$?/256,".\n"; }
449: }
450: } else {
451: $SOURCE = $RPMDIR;
452: if ($verbose) {
453: print ("Getting package lists from $RPMDIR ...\n");
454: }
455: @templist = grep(/\.rpm$/, `(cd $RPMDIR;ls -1)`);
456: }
457:
458: #
459: # If two versions of the same RPM appear with different architectures
460: # and/or different versions, the right one must be found.
461: #
462:
463: $giveup = 0;
464: for (@templist) {
465: ($rpm, $pkg, $pver, $arch) = m/(([^ ]*)-([^- ]+-[^-]+\.(\w+)\.rpm))/;
1.3 ! harris41 466: if (! defined $local_rpm{$pkg}) { next; }
1.1 harris41 467: if ($remote_rpm{$pkg}) {
468: # problem: there are several versions of the same package.
469: # this means that the package exists for different architectures
470: # (e.g., kernel, glibc, etc.) and/or that the remote server
471: # has several versions of the same package in which case the
472: # latest version must be picked.
473: my ($pkg1) = ($remote_rpm{$pkg} =~ m/([^-]+-[^-]+)\.\w+.rpm/);
474: my ($pkg2) = ($pver =~ m/([^-]+-[^-]+)\.\w+.rpm/);
475: my ($vcmp, $qflag) = cmp_versions($pkg1, $pkg2);
476: if ($qflag && $questionable) {
477: # cannot decide which of the two is newer - what should we do?
478: # print a warning that lists the two rpms.
479: # If running with --update, both packages must be rechecked with
480: # rpm -qp --queryformat '%{SERIAL}' <pkg>
481: if ($recheck || $update) {
482: my $decision = pkg_compare("$pkg-$remote_rpm{$pkg}",$rpm, $vcmp);
483: if ($decision < 0) {
484: # an error in the ftp download routine accured: giveup
485: $remote_rpm{$pkg} = undef;
486: $giveup = 1;
487: } elsif ($decision > 0) {
488: # second package is newer
489: $remote_rpm{$pkg} = $pver;
490: }
491: next;
492: } else {
493: mulpkg_msg("$pkg-$remote_rpm{$pkg}", $rpm, $vcmp);
494: print "** check whether this is correct or rerun with --recheck option.\n";
495: if ($vcmp < 0) {
496: $remote_rpm{$pkg} = $pver;
497: }
498: }
499: }
500: if ($vcmp == 0) {
501: # versions are equal: must be different architecture
502: # procedure to select the correct architecture:
503: # if $PROC = athlon: if available use $arch = athlon (exist for
504: # RH 7.1 or newer) otherwise use i686
505: # if $PROC = ix86: choose pkg with $PROC cmp $arch >= 0 and
506: # $arch cmp $prev_arch = 1
507: $_ = $remote_rpm{$pkg};
508: ($prev_arch) = m/.*\.(\w+)\.rpm$/;
509: if (cmp_arch($arch,$prev_arch)) { $remote_rpm{$pkg} = $pver };
510: } elsif ($vcmp < 0) { # second rpm is newer
511: $remote_rpm{$pkg} = $pver;
512: }
513: } else {
514: $remote_rpm{$pkg} = $pver;
515: }
516: }
517:
518: if ($giveup && defined $opt_update) {
519: die "Multiple versions of the same package were found on the server.\n",
520: "However, due to ftp download problems it could not be verified\n",
521: "which of the packages are the most recent ones.\n",
522: "If the choices specified above appear to be correct, rerun check-rpms\n",
523: "without the -lq (or --list-questionable) option. Otherwise, fix the download\n",
524: "problems or install those packages separately first.\n";
525: }
526:
527: #
528: # check for UPDated and DIFferent packages...
529: #
530:
531: for (@local_rpm_list) {
532: my ($pkg, $version) = m/^([^ ]*)-([^-]+-[^-]+)$/;
533: if (! $pkg) { print "Couldn't parse $_\n"; next; }
534: if ($no_kernel) {
535: if ($pkg eq 'kernel' || $pkg eq 'kernel-smp'
536: || $pkg eq 'kernel-enterprise' || $pkg eq 'kernel-BOOT'
537: || $pkg eq 'kernel-debug') { next; }
538: }
539: if (defined $remote_rpm{$pkg}) {
540: # this package has an update
541: my ($rversion) = ($remote_rpm{$pkg} =~ m/([^-]+-[^-]+)\.\w+.rpm/);
542: my $rpm = ($pkg . '-' . $remote_rpm{$pkg});
543: my ($vcmp,$qflag) = cmp_versions($version, $rversion);
544: if ( $qflag && $questionable ) {
545: # at least one of the version strings contains letters
546: push(@q_updates, $rpm);
547: } elsif ( $vcmp < 0 ) {
548: # local version is lower
1.3 ! harris41 549: push(@updates, $rpm);
1.1 harris41 550: }
551: } elsif ($list_missing) {
552: print "Package '$pkg' missing from remote repository\n";
553: }
554: }
555:
556: if ($recheck && @q_updates) {
557: if ($ftp) {
558: for (@q_updates) {
559: ($arch) = m/[^ ]*-[^- ]+-[^-]+\.(\w+)\.rpm/;
560: push(@ftp_files, "$FTPUPDATES/$arch/$_");
561: }
562: if ($verbose) {
563: print "Getting questionable packages form $FTPSERVER ...\n";
564: }
565: my $status = system("$FTPGET $FTPSERVER $RPMDIR @ftp_files");
566: if ($status) {
567: if ($< == 0) {
568: # if we are running as root exit to avoid symlink attacks, etc.
569: die "$FTPGET failed with status ", $status/256, ".\n";
570: } else {
571: print STDERR "warning: $FTPGET failed with status ", $status/256, ".\n";
572: }
573: }
574: }
575: for (@q_updates) {
576: if ($verbose) {print "** rechecking $_ ... ";}
577: my $errmsg = `rpm -Uvh --test --nodeps --pipe 'grep -v ^Preparing' $RPMDIR/$_ 2>&1`;
578: if (! $errmsg) {
579: # no error message, i.e., the rpm is needed.
580: push(@updates,$_);
581: if ($verbose) {print "needed!\n";}
582: } elsif ($verbose) {
583: print "not needed:\n$errmsg\n";
584: }
585: }
586: @q_updates=();
587: }
588:
589: #
590: # print list of new files and download ...
591: #
592:
593: @updates = sort @updates;
594: if (@updates) {
595: if ($verbose) {
596: print "\nRPM files to be updated:\n\n";
597: }
598: for (@updates) {
599: print "$_\n";
600: }
601: if ($download) {
602: @ftp_files=();
603: for (@updates) {
604: ($arch) = m/[^ ]*-[^- ]+-[^-]+\.(\w+)\.rpm/;
605: push(@ftp_files, "$FTPUPDATES/$arch/$_");
606: }
607: if ($verbose) {
608: print "starting downloads ... \n";
609: }
610: my $status = system("$FTPGET $FTPSERVER $RPMDIR @ftp_files");
611: if ($status) {
612: if ($< == 0) {
613: # if we are running as root exit to avoid symlink attacks, etc.
614: die "$FTPGET failed with status ", $status/256, ".\n";
615: } else {
616: print STDERR "warning: $FTPGET failed with status ", $status/256, ".\n";
617: }
618: } elsif ($verbose) {
619: print "... done.\n";
620: }
621: }
622: }
623:
624: @q_updates = sort @q_updates;
625: if (@q_updates && $questionable) {
626: if ($verbose) {
627: print "\nRPM files that may need to be updated:\n\n";
628: for (@q_updates) {
629: my ($old) = m/^([^ ]*)-[^-]+-[^-]+\.\w+\.rpm$/;
630: $old = `rpm -q $old`;
631: chomp($old);
632: print "upgrade ", $old, " to ", $_, " ?\n";
633: }
634: } else {
635: for (@q_updates) {
636: print "$_\n";
637: }
638: }
639: if ($download) {
640: @ftp_files=();
641: for (@updates) {
642: ($arch) = m/[^ ]*-[^- ]+-[^-]+\.(\w+)\.rpm/;
643: push(@ftp_files, $FTPUPDATES/$arch/$_);
644: }
645: if ($verbose) {
646: print "starting downloads ... \n";
647: system("$FTPGET $FTPSERVER $$RPMDIR @ftp_files");
648: print "... done.\n";
649: } else {
650: system("$FTPGET $FTPSERVER $$RPMDIR @ftp_files");
651: }
652: }
653: }
654:
655: if ($verbose && !(@updates || @q_updates)) {
656: print "No new updates are available in $SOURCE\n";
657: }
658:
659: if ($opt_update) {
660: if (@q_updates){
661: push(@updates,@q_updates);
662: }
663: if (@updates) {
664: if ($verbose) {
665: print "Running rpm -Fvh ...\n";
666: }
667: # switch to UID=0
668: $> = $<;
669: system("(cd $RPMDIR;rpm -Fvh @updates)");
670: }
671: }
672:
673: # download routine
674: sub ftp_download {
675: my ($FTPSERVER, $FTPDIR, $downloaddir, @packages) = @_;
676: my @ftp_packages=();
677: for (@packages) {
678: my ($arch) = m/[^ ]*-[^-]+-[^-]*\.(\w+)\.rpm$/;
679: push(@ftp_packages,"$FTPDIR/$arch/$_");
680: }
681: my $status = system("$FTPGET $FTPSERVER $downloaddir @ftp_packages");
682: return $status;
683: }
684:
685: sub pkg_compare($$$) {
686: my ($pkg1, $pkg2, $cmp) = @_;
687: if (defined $opt_ftp) {
688: if ($verbose) {
689: my ($pkg) = ($pkg1 =~ /([^ ]*)-[^-]+-[^-]+\.\w+\.rpm/);
690: print "The ftp server provides multiple versions of the $pkg package.\n",
691: "Downloading $pkg1 and $pkg2 in order to find out which is newer.\n";
692: }
693: my $status = ftp_download($FTPSERVER, $FTPUPDATES, $RPMDIR, ($pkg1, $pkg2));
694: if ($status) {
695: # at this point just give up ...
696: print STDERR "** $FTPGET failed with status ", $status/256, ".\n";
697: mulpkg_msg($pkg1, $pkg2, $cmp);
698: return -1;
699: }
700: }
701: my $serial1 = `rpm -qp --queryformat '%{SERIAL}' $RPMDIR/$pkg1`;
702: my $serial2 = `rpm -qp --queryformat '%{SERIAL}' $RPMDIR/$pkg2`;
1.3 ! harris41 703: if ($serial2 > $serial1) {
! 704: remove_pkg("$RPMDIR/$pkg1");
! 705: return 1;
! 706: } else {
! 707: remove_pkg("$RPMDIR/$pkg2");
! 708: return 0;
! 709: }
! 710: }
! 711:
! 712: sub remove_pkg($) {
! 713: my ($pkg) = @_;
! 714: if ($verbose) {
! 715: print "Removing $pkg ...\n";
! 716: }
! 717: my $status = system("rm -f $pkg");
! 718: if ($status) {
! 719: printf STDERR "error: could not remove $pkg. You must remove this file before updating.\n";
! 720: if ($update) { $giveup = 1; }
! 721: }
1.1 harris41 722: }
723:
724: sub mulpkg_msg($$$) {
725: my ($pkg1, $pkg2, $cmp) = @_;
726: print "** The server provides two versions of the same package:\n",
727: "** $pkg1 and $pkg2.\n";
728: if ($cmp > 0) {
729: print "** It appears that $pkg-$remote_rpm{$pkg} is newer.\n"
730: } else {
731: print "** It appears that $pkg-$pver is newer.\n";
732: }
733: }
734:
735: #############################################################################
736: #
737: # Version comparison utilities
738: #
739:
740: sub hack_version($) {
741: my ($pver) = @_;
742: $pver =~ s/(\d+)/sprintf("%08d", $1)/eg; # pad numbers with leading zeros to make alphabetical sort do the right thing
743: $pver = (sprintf "%-80s", $pver); # pad with spaces so that "3.2.1" is greater than "3.2"
744: return $pver;
745: }
746:
747: sub cmp_versions($$) {
748: my ($pkg1, $pkg2) = @_;
749:
750: # shortcut if they're obviously the same.
751: return (0,0) if ($pkg1 eq $pkg2);
752:
753: # split into version and release
754: my ($ver1, $rel1) = ($pkg1 =~ m/([^-]+)-([^-]+)/);
755: my ($ver2, $rel2) = ($pkg2 =~ m/([^-]+)-([^-]+)/);
756:
757: if ($ver1 ne $ver2) {
758: my $qflag = ((grep /[A-z]/, $ver1) || (grep /[A-z]/, $ver2));
759: $ver1 = hack_version($ver1);
760: $ver2 = hack_version($ver2);
761: return ($ver1 cmp $ver2, $qflag);
762: } else {
763: my $qflag = ((grep /[A-z]/, $rel1) || (grep /[A-z]/, $rel2));
764: $rel1 = hack_version($rel1);
765: $rel2 = hack_version($rel2);
766: return ($rel1 cmp $rel2, $qflag);
767: }
768: }
769:
770: sub cmp_arch($$) {
771: my ($arch1, $arch2) = @_;
772: my $retval = 0;
773: $archcmp = ($arch1 cmp $arch2) > 0;
774: if ( "$PROC" eq "athlon" ) {
775: if ( "$arch2" ne "athlon"
776: && ( "$arch1" eq "athlon" || $archcmp )){
777: $retval = 1;
778: }
779: } elsif ( $archcmp && ($PROC cmp $arch1) >= 0 ) {
780: $retval = 1;
781: }
782: return $retval;
783: }
784:
785: # @tests = ('3.2', '3.2',
786: # '3.2a', '3.2a',
787: # '3.2', '3.2a',
788: # '3.2', '3.3',
789: # '3.2', '3.2.1',
790: # '1.2.5i', '1.2.5.1',
791: # '1.6.3p6', '1.6.4');
792: #
793: # while (@tests) {
794: # $a = shift(@tests);
795: # $b = shift(@tests);
796: # printf "%-10s < %-10s = %d\n", $a, $b, cmp_versions($a, $b);
797: # }
798: #
799: # And the correct output is...
800: #
801: # 3.2 < 3.2 = 0
802: # 3.2a < 3.2a = 0
803: # 3.2 < 3.2a = -1
804: # 3.2 < 3.3 = -1
805: # 3.2 < 3.2.1 = -1
806: # 1.2.5i < 1.2.5.1 = -1
807: # 1.6.3p6 < 1.6.4 = -1
808: #
809: # the lexical sort does not give the correct result in the second to last case.
810:
811:
812: sub usage(){
813: die "usage: check-rpms [-v | --verbose] [-d directory | --dir directory]\n",
814: " [-ftp [server/directory]] [-noftp] [-lm | --list-missing]\n",
815: " [-lq | --list-questionable] [-r | --recheck ]\n",
816: " [-nk | --no-kernel] [--update] [-c configurationfile]\n";
817: }
1.2 harris41 818:
819: =pod
820:
821: =head1 SEE ALSO
822:
823: rpm(8), ncftpls(1), ncftpget(1)
824:
825: =head1 AUTHOR
826:
827: Martin Siegert, Simon Fraser University, siegert@sfu.ca
828:
829: =cut
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