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- /*
- * libdpkg - Debian packaging suite library routines
- * depcon.c - dependency and conflict checking
- *
- * Copyright © 1995 Ian Jackson <ian@chiark.greenend.org.uk>
- * Copyright © 2008-2014 Guillem Jover <guillem@debian.org>
- * Copyright © 2009 Canonical Ltd.
- *
- * 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 <dpkg/dpkg.h>
- #include <dpkg/dpkg-db.h>
- #include <dpkg/arch.h>
- bool
- versionsatisfied(struct pkgbin *it, struct deppossi *against)
- {
- return dpkg_version_relate(&it->version,
- against->verrel,
- &against->version);
- }
- /**
- * Check if the architecture qualifier in the dependency is satisfied.
- *
- * The rules are supposed to be:
- * - unqualified Depends/Pre-Depends/Recommends/Suggests are only
- * satisfied by a package of a different architecture if the target
- * package is Multi-Arch: foreign.
- * - Depends/Pre-Depends/Recommends/Suggests on pkg:any are satisfied by
- * a package of a different architecture if the target package is
- * Multi-Arch: allowed.
- * - all other Depends/Pre-Depends/Recommends/Suggests are only
- * satisfied by packages of the same architecture.
- * - Architecture: all packages are treated the same as packages of the
- * native architecture.
- * - Conflicts/Replaces/Breaks are assumed to apply to packages of any arch.
- */
- bool
- deparchsatisfied(struct pkgbin *it, const struct dpkg_arch *it_arch,
- struct deppossi *against)
- {
- const struct dpkg_arch *dep_arch, *pkg_arch;
- if (against->arch_is_implicit &&
- it->multiarch == PKG_MULTIARCH_FOREIGN)
- return true;
- dep_arch = against->arch;
- if (dep_arch->type == DPKG_ARCH_WILDCARD &&
- (it->multiarch == PKG_MULTIARCH_ALLOWED ||
- against->up->type == dep_conflicts ||
- against->up->type == dep_replaces ||
- against->up->type == dep_breaks))
- return true;
- pkg_arch = it_arch;
- if (dep_arch->type == DPKG_ARCH_NONE || dep_arch->type == DPKG_ARCH_ALL)
- dep_arch = dpkg_arch_get(DPKG_ARCH_NATIVE);
- if (pkg_arch->type == DPKG_ARCH_NONE || pkg_arch->type == DPKG_ARCH_ALL)
- pkg_arch = dpkg_arch_get(DPKG_ARCH_NATIVE);
- return (dep_arch == pkg_arch);
- }
- bool
- archsatisfied(struct pkgbin *it, struct deppossi *against)
- {
- return deparchsatisfied(it, it->arch, against);
- }
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