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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:58:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:58:51 +0000
commitcbffab246997fb5a06211dfb706b54e5ae5bb59f (patch)
tree0573c5d96f58d74d76a49c0f2a70398e389a36d3 /src/main/enquiry.c
parentInitial commit. (diff)
downloaddpkg-cbffab246997fb5a06211dfb706b54e5ae5bb59f.tar.xz
dpkg-cbffab246997fb5a06211dfb706b54e5ae5bb59f.zip
Adding upstream version 1.21.22.upstream/1.21.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/main/enquiry.c')
-rw-r--r--src/main/enquiry.c906
1 files changed, 906 insertions, 0 deletions
diff --git a/src/main/enquiry.c b/src/main/enquiry.c
new file mode 100644
index 0000000..cc605c2
--- /dev/null
+++ b/src/main/enquiry.c
@@ -0,0 +1,906 @@
+/*
+ * dpkg - main program for package management
+ * enquiry.c - status enquiry and listing options
+ *
+ * Copyright © 1995,1996 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006, 2008-2016 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This 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 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, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/arch.h>
+#include <dpkg/pkg-array.h>
+#include <dpkg/pkg-show.h>
+#include <dpkg/triglib.h>
+#include <dpkg/string.h>
+#include <dpkg/options.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+struct audit_problem {
+ bool (*check)(struct pkginfo *, const struct audit_problem *problem);
+ union {
+ int number;
+ const char *string;
+ } value;
+ const char *explanation;
+};
+
+static bool
+audit_reinstreq(struct pkginfo *pkg, const struct audit_problem *problem)
+{
+ return pkg->eflag & PKG_EFLAG_REINSTREQ;
+}
+
+static bool
+audit_status(struct pkginfo *pkg, const struct audit_problem *problem)
+{
+ if (pkg->eflag & PKG_EFLAG_REINSTREQ)
+ return false;
+ return (int)pkg->status == problem->value.number;
+}
+
+static bool
+audit_infofile(struct pkginfo *pkg, const struct audit_problem *problem)
+{
+ if (pkg->status < PKG_STAT_HALFINSTALLED)
+ return false;
+ return !pkg_infodb_has_file(pkg, &pkg->installed, problem->value.string);
+}
+
+static bool
+audit_arch(struct pkginfo *pkg, const struct audit_problem *problem)
+{
+ if (pkg->status < PKG_STAT_HALFINSTALLED)
+ return false;
+ return pkg->installed.arch->type == (enum dpkg_arch_type)problem->value.number;
+}
+
+static const struct audit_problem audit_problems[] = {
+ {
+ .check = audit_reinstreq,
+ .value.number = 0,
+ .explanation = N_(
+ "The following packages are in a mess due to serious problems during\n"
+ "installation. They must be reinstalled for them (and any packages\n"
+ "that depend on them) to function properly:\n")
+ }, {
+ .check = audit_status,
+ .value.number = PKG_STAT_UNPACKED,
+ .explanation = N_(
+ "The following packages have been unpacked but not yet configured.\n"
+ "They must be configured using dpkg --configure or the configure\n"
+ "menu option in dselect for them to work:\n")
+ }, {
+ .check = audit_status,
+ .value.number = PKG_STAT_HALFCONFIGURED,
+ .explanation = N_(
+ "The following packages are only half configured, probably due to problems\n"
+ "configuring them the first time. The configuration should be retried using\n"
+ "dpkg --configure <package> or the configure menu option in dselect:\n")
+ }, {
+ .check = audit_status,
+ .value.number = PKG_STAT_HALFINSTALLED,
+ .explanation = N_(
+ "The following packages are only half installed, due to problems during\n"
+ "installation. The installation can probably be completed by retrying it;\n"
+ "the packages can be removed using dselect or dpkg --remove:\n")
+ }, {
+ .check = audit_status,
+ .value.number = PKG_STAT_TRIGGERSAWAITED,
+ .explanation = N_(
+ "The following packages are awaiting processing of triggers that they\n"
+ "have activated in other packages. This processing can be requested using\n"
+ "dselect or dpkg --configure --pending (or dpkg --triggers-only):\n")
+ }, {
+ .check = audit_status,
+ .value.number = PKG_STAT_TRIGGERSPENDING,
+ .explanation = N_(
+ "The following packages have been triggered, but the trigger processing\n"
+ "has not yet been done. Trigger processing can be requested using\n"
+ "dselect or dpkg --configure --pending (or dpkg --triggers-only):\n")
+ }, {
+ .check = audit_infofile,
+ .value.string = LISTFILE,
+ .explanation = N_(
+ "The following packages are missing the list control file in the\n"
+ "database, they need to be reinstalled:\n")
+ }, {
+ .check = audit_infofile,
+ .value.string = HASHFILE,
+ .explanation = N_(
+ "The following packages are missing the md5sums control file in the\n"
+ "database, they need to be reinstalled:\n")
+ }, {
+ .check = audit_arch,
+ .value.number = DPKG_ARCH_EMPTY,
+ .explanation = N_("The following packages do not have an architecture:\n")
+ }, {
+ .check = audit_arch,
+ .value.number = DPKG_ARCH_ILLEGAL,
+ .explanation = N_("The following packages have an illegal architecture:\n")
+ }, {
+ .check = audit_arch,
+ .value.number = DPKG_ARCH_UNKNOWN,
+ .explanation = N_(
+ "The following packages have an unknown foreign architecture, which will\n"
+ "cause dependency issues on front-ends. This can be fixed by registering\n"
+ "the foreign architecture with dpkg --add-architecture:\n")
+ }, {
+ .check = NULL
+ }
+};
+
+static void describebriefly(struct pkginfo *pkg) {
+ int maxl, l;
+ const char *pdesc;
+
+ maxl= 57;
+ l= strlen(pkg->set->name);
+ if (l>20) maxl -= (l-20);
+
+ pdesc = pkgbin_synopsis(pkg, &pkg->installed, &l);
+ l = min(l, maxl);
+
+ printf(" %-20s %.*s\n", pkg_name(pkg, pnaw_nonambig), l, pdesc);
+}
+
+static struct pkginfo *
+pkg_array_mapper(const char *name)
+{
+ struct pkginfo *pkg;
+
+ pkg = dpkg_options_parse_pkgname(cipaction, name);
+ if (pkg->status == PKG_STAT_NOTINSTALLED)
+ notice(_("package '%s' is not installed"), pkg_name(pkg, pnaw_nonambig));
+
+ return pkg;
+}
+
+int
+audit(const char *const *argv)
+{
+ const struct audit_problem *problem;
+ struct pkg_array array;
+ bool head_running = false;
+ int i;
+
+ modstatdb_open(msdbrw_readonly);
+
+ if (!*argv)
+ pkg_array_init_from_hash(&array);
+ else
+ pkg_array_init_from_names(&array, pkg_array_mapper, (const char **)argv);
+
+ pkg_array_sort(&array, pkg_sorter_by_nonambig_name_arch);
+
+ for (problem = audit_problems; problem->check; problem++) {
+ bool head = false;
+
+ for (i = 0; i < array.n_pkgs; i++) {
+ struct pkginfo *pkg = array.pkgs[i];
+
+ if (!problem->check(pkg, problem))
+ continue;
+ if (!head_running) {
+ if (modstatdb_is_locked())
+ puts(_(
+"Another process has locked the database for writing, and might currently be\n"
+"modifying it, some of the following problems might just be due to that.\n"));
+ head_running = true;
+ }
+ if (!head) {
+ fputs(gettext(problem->explanation), stdout);
+ head = true;
+ }
+ describebriefly(pkg);
+ }
+
+ if (head) putchar('\n');
+ }
+
+ pkg_array_destroy(&array);
+
+ m_output(stdout, _("<standard output>"));
+
+ return 0;
+}
+
+struct sectionentry {
+ struct sectionentry *next;
+ const char *name;
+ int count;
+};
+
+static bool
+yettobeunpacked(struct pkginfo *pkg, const char **thissect)
+{
+ if (pkg->want != PKG_WANT_INSTALL)
+ return false;
+
+ switch (pkg->status) {
+ case PKG_STAT_UNPACKED:
+ case PKG_STAT_INSTALLED:
+ case PKG_STAT_HALFCONFIGURED:
+ case PKG_STAT_TRIGGERSPENDING:
+ case PKG_STAT_TRIGGERSAWAITED:
+ return false;
+ case PKG_STAT_NOTINSTALLED:
+ case PKG_STAT_HALFINSTALLED:
+ case PKG_STAT_CONFIGFILES:
+ if (thissect)
+ *thissect = str_is_set(pkg->section) ? pkg->section :
+ C_("section", "<unknown>");
+ return true;
+ default:
+ internerr("unknown package status '%d'", pkg->status);
+ }
+ return false;
+}
+
+int
+unpackchk(const char *const *argv)
+{
+ int totalcount, sects;
+ struct sectionentry *sectionentries, *se, **sep;
+ struct pkg_hash_iter *iter;
+ struct pkginfo *pkg;
+ const char *thissect;
+ char buf[20];
+ int width;
+
+ if (*argv)
+ badusage(_("--%s takes no arguments"), cipaction->olong);
+
+ modstatdb_open(msdbrw_readonly);
+
+ totalcount= 0;
+ sectionentries = NULL;
+ sects= 0;
+ iter = pkg_hash_iter_new();
+ while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+ if (!yettobeunpacked(pkg, &thissect)) continue;
+ for (se= sectionentries; se && strcasecmp(thissect,se->name); se= se->next);
+ if (!se) {
+ se = nfmalloc(sizeof(*se));
+ for (sep= &sectionentries;
+ *sep && strcasecmp(thissect,(*sep)->name) > 0;
+ sep= &(*sep)->next);
+ se->name= thissect;
+ se->count= 0;
+ se->next= *sep;
+ *sep= se;
+ sects++;
+ }
+ se->count++; totalcount++;
+ }
+ pkg_hash_iter_free(iter);
+
+ if (totalcount == 0)
+ return 0;
+
+ if (totalcount <= 12) {
+ iter = pkg_hash_iter_new();
+ while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+ if (!yettobeunpacked(pkg, NULL))
+ continue;
+ describebriefly(pkg);
+ }
+ pkg_hash_iter_free(iter);
+ } else if (sects <= 12) {
+ for (se= sectionentries; se; se= se->next) {
+ sprintf(buf,"%d",se->count);
+ printf(_(" %d in %s: "),se->count,se->name);
+ width= 70-strlen(se->name)-strlen(buf);
+ while (width > 59) { putchar(' '); width--; }
+ iter = pkg_hash_iter_new();
+ while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+ const char *pkgname;
+
+ if (!yettobeunpacked(pkg,&thissect)) continue;
+ if (strcasecmp(thissect,se->name)) continue;
+ pkgname = pkg_name(pkg, pnaw_nonambig);
+ width -= strlen(pkgname);
+ width--;
+ if (width < 4) { printf(" ..."); break; }
+ printf(" %s", pkgname);
+ }
+ pkg_hash_iter_free(iter);
+ putchar('\n');
+ }
+ } else {
+ printf(P_(" %d package, from the following section:",
+ " %d packages, from the following sections:", totalcount),
+ totalcount);
+ width= 0;
+ for (se= sectionentries; se; se= se->next) {
+ sprintf(buf,"%d",se->count);
+ width -= (6 + strlen(se->name) + strlen(buf));
+ if (width < 0) { putchar('\n'); width= 73 - strlen(se->name) - strlen(buf); }
+ printf(" %s (%d)",se->name,se->count);
+ }
+ putchar('\n');
+ }
+
+ m_output(stdout, _("<standard output>"));
+
+ return 0;
+}
+
+static const struct assert_feature {
+ const char *name;
+ const char *desc;
+ const char *version;
+} assert_features[] = {
+ {
+ .name = "support-predepends",
+ .desc = N_("the Pre-Depends field"),
+ .version = "1.1.0",
+ }, {
+ .name = "working-epoch",
+ .desc = N_("epochs in versions"),
+ .version = "1.4.0.7",
+ }, {
+ .name = "long-filenames",
+ .desc = N_("long filenames in .deb archives"),
+ .version = "1.4.1.17",
+ }, {
+ .name = "multi-conrep",
+ .desc = N_("multiple Conflicts and Replaces"),
+ .version = "1.4.1.19",
+ }, {
+ .name = "multi-arch",
+ .desc = N_("multi-arch fields and semantics"),
+ .version = "1.16.2",
+ }, {
+ .name = "versioned-provides",
+ .desc = N_("versioned relationships in the Provides field"),
+ .version = "1.17.11",
+ }, {
+ .name = "protected-field",
+ .desc = N_("the Protected field"),
+ .version = "1.20.1",
+ }, {
+ .name = NULL,
+ }
+};
+
+static int
+assert_version_support(const char *const *argv,
+ const struct assert_feature *feature)
+{
+ const char *running_version_str;
+ struct dpkg_version running_version = DPKG_VERSION_INIT;
+ struct dpkg_version version = { 0, feature->version, NULL };
+ struct dpkg_error err = DPKG_ERROR_INIT;
+
+ if (*argv)
+ badusage(_("--%s takes no arguments"), cipaction->olong);
+
+ /*
+ * When using the feature asserts, we want to know whether the currently
+ * running dpkg, which we might be running under (say from within a
+ * maintainer script) and which might have a different version, supports
+ * the requested feature. As dpkg is an Essential package, it is expected
+ * to work even when just unpacked, and so its own version is enough.
+ */
+ running_version_str = getenv("DPKG_RUNNING_VERSION");
+
+ /*
+ * If we are not running from within a maintainer script, then that means
+ * once we do, the executed dpkg will support the requested feature, if
+ * we know about it. Always return success in that case.
+ */
+ if (str_is_unset(running_version_str))
+ return 0;
+
+ if (parseversion(&running_version, running_version_str, &err) < 0)
+ ohshit(_("cannot parse dpkg running version '%s': %s"),
+ running_version_str, err.str);
+
+ if (dpkg_version_relate(&running_version, DPKG_RELATION_GE, &version))
+ return 0;
+
+ printf(_("Running version of dpkg does not support %s.\n"
+ " Please upgrade to at least dpkg %s, and then try again.\n"),
+ feature->desc, versiondescribe(&version, vdew_nonambig));
+ return 1;
+}
+
+const char *assert_feature_name;
+
+int
+assert_feature(const char *const *argv)
+{
+ const struct assert_feature *feature;
+
+ if (strcmp(assert_feature_name, "help") == 0) {
+ printf(_("%s assert options - assert whether features are supported:\n"),
+ dpkg_get_progname());
+
+ for (feature = assert_features; feature->name; feature++) {
+ printf(" %-19s %-9s %s\n", feature->name, feature->version,
+ gettext(feature->desc));
+ }
+
+ exit(0);
+ }
+
+ for (feature = assert_features; feature->name; feature++) {
+ if (strcmp(feature->name, assert_feature_name) != 0)
+ continue;
+
+ return assert_version_support(argv, feature);
+ }
+
+ badusage(_("unknown --%s-<feature>"), cipaction->olong);
+}
+
+/**
+ * Print a single package which:
+ * (a) is the target of one or more relevant predependencies.
+ * (b) has itself no unsatisfied pre-dependencies.
+ *
+ * If such a package is present output is the Packages file entry,
+ * which can be massaged as appropriate.
+ *
+ * Exit status:
+ * 0 = a package printed, OK
+ * 1 = no suitable package available
+ * 2 = error
+ */
+int
+predeppackage(const char *const *argv)
+{
+ static struct varbuf vb;
+
+ struct pkg_hash_iter *iter;
+ struct pkginfo *pkg = NULL, *startpkg, *trypkg;
+ struct dependency *dep;
+ struct deppossi *possi, *provider;
+
+ if (*argv)
+ badusage(_("--%s takes no arguments"), cipaction->olong);
+
+ modstatdb_open(msdbrw_readonly | msdbrw_available_readonly);
+ /* We use clientdata->istobe to detect loops. */
+ clear_istobes();
+
+ dep = NULL;
+ iter = pkg_hash_iter_new();
+ while (!dep && (pkg = pkg_hash_iter_next_pkg(iter))) {
+ /* Ignore packages user doesn't want. */
+ if (pkg->want != PKG_WANT_INSTALL)
+ continue;
+ /* Ignore packages not available. */
+ if (!pkg->archives)
+ continue;
+ pkg->clientdata->istobe = PKG_ISTOBE_PREINSTALL;
+ for (dep= pkg->available.depends; dep; dep= dep->next) {
+ if (dep->type != dep_predepends) continue;
+ if (depisok(dep, &vb, NULL, NULL, true))
+ continue;
+ /* This will leave dep non-NULL, and so exit the loop. */
+ break;
+ }
+ pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+ /* If dep is NULL we go and get the next package. */
+ }
+ pkg_hash_iter_free(iter);
+
+ if (!dep)
+ return 1; /* Not found. */
+ if (pkg == NULL)
+ internerr("unexpected unfound package");
+
+ startpkg= pkg;
+ pkg->clientdata->istobe = PKG_ISTOBE_PREINSTALL;
+
+ /* OK, we have found an unsatisfied predependency.
+ * Now go and find the first thing we need to install, as a first step
+ * towards satisfying it. */
+ do {
+ /* We search for a package which would satisfy dep, and put it in pkg. */
+ for (possi = dep->list, pkg = NULL;
+ !pkg && possi;
+ possi=possi->next) {
+ struct deppossi_pkg_iterator *possi_iter;
+
+ possi_iter = deppossi_pkg_iter_new(possi, wpb_available);
+ while (!pkg && (trypkg = deppossi_pkg_iter_next(possi_iter))) {
+ if (trypkg->archives &&
+ trypkg->clientdata->istobe == PKG_ISTOBE_NORMAL &&
+ versionsatisfied(&trypkg->available, possi)) {
+ pkg = trypkg;
+ break;
+ }
+ for (provider = possi->ed->depended.available;
+ !pkg && provider;
+ provider = provider->next) {
+ if (provider->up->type != dep_provides)
+ continue;
+ if (!pkg_virtual_deppossi_satisfied(possi, provider))
+ continue;
+ trypkg = provider->up->up;
+ if (!trypkg->archives)
+ continue;
+ if (trypkg->clientdata->istobe == PKG_ISTOBE_NORMAL) {
+ pkg = trypkg;
+ break;
+ }
+ }
+ }
+ deppossi_pkg_iter_free(possi_iter);
+ }
+ if (!pkg) {
+ varbuf_reset(&vb);
+ describedepcon(&vb,dep);
+ varbuf_end_str(&vb);
+ notice(_("cannot see how to satisfy pre-dependency:\n %s"), vb.buf);
+ ohshit(_("cannot satisfy pre-dependencies for %.250s (wanted due to %.250s)"),
+ pkgbin_name(dep->up, &dep->up->available, pnaw_nonambig),
+ pkgbin_name(startpkg, &startpkg->available, pnaw_nonambig));
+ }
+ pkg->clientdata->istobe = PKG_ISTOBE_PREINSTALL;
+ for (dep= pkg->available.depends; dep; dep= dep->next) {
+ if (dep->type != dep_predepends) continue;
+ if (depisok(dep, &vb, NULL, NULL, true))
+ continue;
+ /* This will leave dep non-NULL, and so exit the loop. */
+ break;
+ }
+ } while (dep);
+
+ /* OK, we've found it - pkg has no unsatisfied pre-dependencies! */
+ write_stanza(stdout, _("<standard output>"), pkg, &pkg->available);
+
+ m_output(stdout, _("<standard output>"));
+
+ return 0;
+}
+
+int
+printarch(const char *const *argv)
+{
+ if (*argv)
+ badusage(_("--%s takes no arguments"), cipaction->olong);
+
+ printf("%s\n", dpkg_arch_get(DPKG_ARCH_NATIVE)->name);
+
+ m_output(stdout, _("<standard output>"));
+
+ return 0;
+}
+
+int
+print_foreign_arches(const char *const *argv)
+{
+ struct dpkg_arch *arch;
+
+ if (*argv)
+ badusage(_("--%s takes no arguments"), cipaction->olong);
+
+ dpkg_arch_load_list();
+
+ for (arch = dpkg_arch_get_list(); arch; arch = arch->next) {
+ if (arch->type != DPKG_ARCH_FOREIGN)
+ continue;
+
+ printf("%s\n", arch->name);
+ }
+
+ m_output(stdout, _("<standard output>"));
+
+ return 0;
+}
+
+int
+validate_pkgname(const char *const *argv)
+{
+ const char *emsg;
+
+ if (!argv[0] || argv[1])
+ badusage(_("--%s takes one <pkgname> argument"), cipaction->olong);
+
+ emsg = pkg_name_is_illegal(argv[0]);
+ if (emsg)
+ ohshit(_("package name '%s' is invalid: %s"), argv[0], emsg);
+
+ return 0;
+}
+
+int
+validate_trigname(const char *const *argv)
+{
+ const char *emsg;
+
+ if (!argv[0] || argv[1])
+ badusage(_("--%s takes one <trigname> argument"), cipaction->olong);
+
+ emsg = trig_name_is_illegal(argv[0]);
+ if (emsg)
+ ohshit(_("trigger name '%s' is invalid: %s"), argv[0], emsg);
+
+ return 0;
+}
+
+int
+validate_archname(const char *const *argv)
+{
+ const char *emsg;
+
+ if (!argv[0] || argv[1])
+ badusage(_("--%s takes one <archname> argument"), cipaction->olong);
+
+ emsg = dpkg_arch_name_is_illegal(argv[0]);
+ if (emsg)
+ ohshit(_("architecture name '%s' is invalid: %s"), argv[0], emsg);
+
+ return 0;
+}
+
+int
+validate_version(const char *const *argv)
+{
+ struct dpkg_version version;
+ struct dpkg_error err;
+
+ if (!argv[0] || argv[1])
+ badusage(_("--%s takes one <version> argument"), cipaction->olong);
+
+ if (parseversion(&version, argv[0], &err) < 0) {
+ dpkg_error_print(&err, _("version '%s' has bad syntax"), argv[0]);
+ dpkg_error_destroy(&err);
+
+ return 1;
+ }
+
+ return 0;
+}
+
+int
+cmpversions(const char *const *argv)
+{
+ struct relationinfo {
+ const char *op;
+ /* These values are exit status codes. */
+ int if_lesser, if_equal, if_greater;
+ int if_none_a, if_none_both, if_none_b;
+ bool obsolete;
+ };
+
+ static const struct relationinfo relationinfos[]= {
+ {
+ .op = "le",
+ .if_lesser = EXIT_SUCCESS,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_FAILURE,
+ .if_none_a = EXIT_SUCCESS,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_FAILURE,
+ }, {
+ .op = "lt",
+ .if_lesser = EXIT_SUCCESS,
+ .if_equal = EXIT_FAILURE,
+ .if_greater = EXIT_FAILURE,
+ .if_none_a = EXIT_SUCCESS,
+ .if_none_both = EXIT_FAILURE,
+ .if_none_b = EXIT_FAILURE,
+ }, {
+ .op = "eq",
+ .if_lesser = EXIT_FAILURE,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_FAILURE,
+ .if_none_a = EXIT_FAILURE,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_FAILURE,
+ }, {
+ .op = "ne",
+ .if_lesser = EXIT_SUCCESS,
+ .if_equal = EXIT_FAILURE,
+ .if_greater = EXIT_SUCCESS,
+ .if_none_a = EXIT_SUCCESS,
+ .if_none_both = EXIT_FAILURE,
+ .if_none_b = EXIT_SUCCESS,
+ }, {
+ .op = "ge",
+ .if_lesser = EXIT_FAILURE,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_SUCCESS,
+ .if_none_a = EXIT_FAILURE,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_SUCCESS,
+ }, {
+ .op = "gt",
+ .if_lesser = EXIT_FAILURE,
+ .if_equal = EXIT_FAILURE,
+ .if_greater = EXIT_SUCCESS,
+ .if_none_a = EXIT_FAILURE,
+ .if_none_both = EXIT_FAILURE,
+ .if_none_b = EXIT_SUCCESS,
+ },
+
+ /* These treat an empty version as later than any version. */
+ {
+ .op = "le-nl",
+ .if_lesser = EXIT_SUCCESS,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_FAILURE,
+ .if_none_a = EXIT_FAILURE,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_SUCCESS,
+ }, {
+ .op = "lt-nl",
+ .if_lesser = EXIT_SUCCESS,
+ .if_equal = EXIT_FAILURE,
+ .if_greater = EXIT_FAILURE,
+ .if_none_a = EXIT_FAILURE,
+ .if_none_both = EXIT_FAILURE,
+ .if_none_b = EXIT_SUCCESS,
+ }, {
+ .op = "ge-nl",
+ .if_lesser = EXIT_FAILURE,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_SUCCESS,
+ .if_none_a = EXIT_SUCCESS,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_FAILURE,
+ }, {
+ .op = "gt-nl",
+ .if_lesser = EXIT_FAILURE,
+ .if_equal = EXIT_FAILURE,
+ .if_greater = EXIT_SUCCESS,
+ .if_none_a = EXIT_SUCCESS,
+ .if_none_both = EXIT_FAILURE,
+ .if_none_b = EXIT_FAILURE,
+ },
+
+ /* For compatibility with dpkg control file syntax. */
+ {
+ .op = "<",
+ .if_lesser = EXIT_SUCCESS,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_FAILURE,
+ .if_none_a = EXIT_SUCCESS,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_FAILURE,
+ .obsolete = true,
+ }, {
+ .op = "<=",
+ .if_lesser = EXIT_SUCCESS,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_FAILURE,
+ .if_none_a = EXIT_SUCCESS,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_FAILURE,
+ }, {
+ .op = "<<",
+ .if_lesser = EXIT_SUCCESS,
+ .if_equal = EXIT_FAILURE,
+ .if_greater = EXIT_FAILURE,
+ .if_none_a = EXIT_SUCCESS,
+ .if_none_both = EXIT_FAILURE,
+ .if_none_b = EXIT_FAILURE,
+ }, {
+ .op = "=",
+ .if_lesser = EXIT_FAILURE,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_FAILURE,
+ .if_none_a = EXIT_FAILURE,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_FAILURE,
+ }, {
+ .op = ">",
+ .if_lesser = EXIT_FAILURE,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_SUCCESS,
+ .if_none_a = EXIT_FAILURE,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_SUCCESS,
+ .obsolete = true,
+ }, {
+ .op = ">=",
+ .if_lesser = EXIT_FAILURE,
+ .if_equal = EXIT_SUCCESS,
+ .if_greater = EXIT_SUCCESS,
+ .if_none_a = EXIT_FAILURE,
+ .if_none_both = EXIT_SUCCESS,
+ .if_none_b = EXIT_SUCCESS,
+ }, {
+ .op = ">>",
+ .if_lesser = EXIT_FAILURE,
+ .if_equal = EXIT_FAILURE,
+ .if_greater = EXIT_SUCCESS,
+ .if_none_a = EXIT_FAILURE,
+ .if_none_both = EXIT_FAILURE,
+ .if_none_b = EXIT_SUCCESS,
+ }, {
+ .op = NULL,
+ }
+ };
+
+ const struct relationinfo *rip;
+ struct dpkg_version a, b;
+ struct dpkg_error err;
+ int rc;
+
+ if (!argv[0] || !argv[1] || !argv[2] || argv[3])
+ badusage(_("--compare-versions takes three arguments:"
+ " <version> <relation> <version>"));
+
+ for (rip = relationinfos; rip->op && strcmp(rip->op, argv[1]); rip++)
+ ;
+
+ if (!rip->op)
+ badusage(_("--compare-versions bad relation"));
+
+ if (rip->obsolete)
+ warning(_("--%s used with obsolete relation operator '%s'"),
+ cipaction->olong, rip->op);
+
+ if (*argv[0] && strcmp(argv[0],"<unknown>")) {
+ if (parseversion(&a, argv[0], &err) < 0) {
+ dpkg_error_print(&err, _("version '%s' has bad syntax"), argv[0]);
+ dpkg_error_destroy(&err);
+ }
+ } else {
+ dpkg_version_blank(&a);
+ }
+ if (*argv[2] && strcmp(argv[2],"<unknown>")) {
+ if (parseversion(&b, argv[2], &err) < 0) {
+ dpkg_error_print(&err, _("version '%s' has bad syntax"), argv[2]);
+ dpkg_error_destroy(&err);
+ }
+ } else {
+ dpkg_version_blank(&b);
+ }
+ if (!dpkg_version_is_informative(&a)) {
+ if (dpkg_version_is_informative(&b))
+ return rip->if_none_a;
+ else
+ return rip->if_none_both;
+ } else if (!dpkg_version_is_informative(&b)) {
+ return rip->if_none_b;
+ }
+ rc = dpkg_version_compare(&a, &b);
+ debug(dbg_general, "cmpversions a='%s' b='%s' r=%d",
+ versiondescribe_c(&a,vdew_always),
+ versiondescribe_c(&b,vdew_always),
+ rc);
+ if (rc > 0)
+ return rip->if_greater;
+ else if (rc < 0)
+ return rip->if_lesser;
+ else
+ return rip->if_equal;
+}