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diff --git a/src/libopkg/.svn/text-base/opkg_install.c.svn-base b/src/libopkg/.svn/text-base/opkg_install.c.svn-base
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+/* opkg_install.c - the opkg package management system
+
+ Carl D. Worth
+
+ Copyright (C) 2001 University of Southern California
+
+ 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, 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.
+*/
+
+#include "config.h"
+
+#include <stdio.h>
+#include <time.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+#include "pkg.h"
+#include "pkg_hash.h"
+#include "pkg_extract.h"
+
+#include "opkg_install.h"
+#include "opkg_configure.h"
+#include "opkg_download.h"
+#include "opkg_remove.h"
+
+#include "opkg_utils.h"
+#include "opkg_message.h"
+#include "opkg_cmd.h"
+#include "opkg_defines.h"
+
+#include "sprintf_alloc.h"
+#include "file_util.h"
+#include "xsystem.h"
+#include "libbb/libbb.h"
+
+static int
+satisfy_dependencies_for(pkg_t *pkg)
+{
+ int i, err;
+ pkg_vec_t *depends = pkg_vec_alloc();
+ pkg_t *dep;
+ char **tmp, **unresolved = NULL;
+ int ndepends;
+
+ ndepends = pkg_hash_fetch_unsatisfied_dependencies(pkg, depends,
+ &unresolved);
+
+ if (unresolved) {
+ opkg_msg(ERROR, "Cannot satisfy the following dependencies for %s:\n",
+ pkg->name);
+ tmp = unresolved;
+ while (*unresolved) {
+ opkg_message(ERROR, "\t%s", *unresolved);
+ free(*unresolved);
+ unresolved++;
+ }
+ free(tmp);
+ opkg_message(ERROR, "\n");
+ if (! conf->force_depends) {
+ opkg_msg(INFO,
+ "This could mean that your package list is out of date or that the packages\n"
+ "mentioned above do not yet exist (try 'opkg update'). To proceed in spite\n"
+ "of this problem try again with the '-force-depends' option.\n");
+ pkg_vec_free(depends);
+ return -1;
+ }
+ }
+
+ if (ndepends <= 0) {
+ pkg_vec_free(depends);
+ return 0;
+ }
+
+ /* Mark packages as to-be-installed */
+ for (i=0; i < depends->len; i++) {
+ /* Dependencies should be installed the same place as pkg */
+ if (depends->pkgs[i]->dest == NULL) {
+ depends->pkgs[i]->dest = pkg->dest;
+ }
+ depends->pkgs[i]->state_want = SW_INSTALL;
+ }
+
+ for (i = 0; i < depends->len; i++) {
+ dep = depends->pkgs[i];
+ /* The package was uninstalled when we started, but another
+ dep earlier in this loop may have depended on it and pulled
+ it in, so check first. */
+ if ((dep->state_status != SS_INSTALLED)
+ && (dep->state_status != SS_UNPACKED)) {
+ opkg_msg(DEBUG2,"Calling opkg_install_pkg.\n");
+ err = opkg_install_pkg(dep, 0);
+ /* mark this package as having been automatically installed to
+ * satisfy a dependancy */
+ dep->auto_installed = 1;
+ if (err) {
+ pkg_vec_free(depends);
+ return err;
+ }
+ }
+ }
+
+ pkg_vec_free(depends);
+
+ return 0;
+}
+
+static int
+check_conflicts_for(pkg_t *pkg)
+{
+ int i;
+ pkg_vec_t *conflicts = NULL;
+ message_level_t level;
+
+ if (conf->force_depends) {
+ level = NOTICE;
+ } else {
+ level = ERROR;
+ }
+
+ if (!conf->force_depends)
+ conflicts = pkg_hash_fetch_conflicts(pkg);
+
+ if (conflicts) {
+ opkg_msg(level, "The following packages conflict with %s:\n",
+ pkg->name);
+ i = 0;
+ while (i < conflicts->len)
+ opkg_msg(level, "\t%s", conflicts->pkgs[i++]->name);
+ opkg_message(level, "\n");
+ pkg_vec_free(conflicts);
+ return -1;
+ }
+ return 0;
+}
+
+static int
+update_file_ownership(pkg_t *new_pkg, pkg_t *old_pkg)
+{
+ str_list_t *new_list, *old_list;
+ str_list_elt_t *iter, *niter;
+
+ new_list = pkg_get_installed_files(new_pkg);
+ if (new_list == NULL)
+ return -1;
+
+ for (iter = str_list_first(new_list), niter = str_list_next(new_list, iter);
+ iter;
+ iter = niter, niter = str_list_next(new_list, niter)) {
+ char *new_file = (char *)iter->data;
+ pkg_t *owner = file_hash_get_file_owner(new_file);
+ pkg_t *obs = hash_table_get(&conf->obs_file_hash, new_file);
+
+ opkg_msg(DEBUG2, "%s: new_pkg=%s wants file %s, from owner=%s\n",
+ __func__, new_pkg->name, new_file, owner?owner->name:"<NULL>");
+
+ if (!owner || (owner == old_pkg) || obs)
+ file_hash_set_file_owner(new_file, new_pkg);
+ }
+
+ if (old_pkg) {
+ old_list = pkg_get_installed_files(old_pkg);
+ if (old_list == NULL) {
+ pkg_free_installed_files(new_pkg);
+ return -1;
+ }
+
+ for (iter = str_list_first(old_list), niter = str_list_next(old_list, iter);
+ iter;
+ iter = niter, niter = str_list_next(old_list, niter)) {
+ char *old_file = (char *)iter->data;
+ pkg_t *owner = file_hash_get_file_owner(old_file);
+ if (!owner || (owner == old_pkg)) {
+ /* obsolete */
+ hash_table_insert(&conf->obs_file_hash, old_file, old_pkg);
+ }
+ }
+ pkg_free_installed_files(old_pkg);
+ }
+ pkg_free_installed_files(new_pkg);
+ return 0;
+}
+
+static int
+verify_pkg_installable(pkg_t *pkg)
+{
+ unsigned long kbs_available, pkg_size_kbs;
+ char *root_dir = NULL;
+ struct stat s;
+
+ if (conf->force_space || pkg->installed_size == 0)
+ return 0;
+
+ if (pkg->dest)
+ {
+ if (!strcmp(pkg->dest->name, "root") && conf->overlay_root
+ && !stat(conf->overlay_root, &s) && (s.st_mode & S_IFDIR))
+ root_dir = conf->overlay_root;
+ else
+ root_dir = pkg->dest->root_dir;
+ }
+
+ if (!root_dir)
+ root_dir = conf->default_dest->root_dir;
+
+ kbs_available = get_available_kbytes(root_dir);
+
+ pkg_size_kbs = (pkg->installed_size + 1023)/1024;
+
+ if (pkg_size_kbs >= kbs_available) {
+ opkg_msg(ERROR, "Only have %ldkb available on filesystem %s, "
+ "pkg %s needs %ld\n",
+ kbs_available, root_dir, pkg->name, pkg_size_kbs);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+unpack_pkg_control_files(pkg_t *pkg)
+{
+ int err;
+ char *conffiles_file_name;
+ char *root_dir;
+ FILE *conffiles_file;
+
+ sprintf_alloc(&pkg->tmp_unpack_dir, "%s/%s-XXXXXX", conf->tmp_dir, pkg->name);
+
+ pkg->tmp_unpack_dir = mkdtemp(pkg->tmp_unpack_dir);
+ if (pkg->tmp_unpack_dir == NULL) {
+ opkg_perror(ERROR, "Failed to create temporary directory '%s'",
+ pkg->tmp_unpack_dir);
+ return -1;
+ }
+
+ err = pkg_extract_control_files_to_dir(pkg, pkg->tmp_unpack_dir);
+ if (err) {
+ return err;
+ }
+
+ /* XXX: CLEANUP: There might be a cleaner place to read in the
+ conffiles. Seems like I should be able to get everything to go
+ through pkg_init_from_file. If so, maybe it would make sense to
+ move all of unpack_pkg_control_files to that function. */
+
+ /* Don't need to re-read conffiles if we already have it */
+ if (!nv_pair_list_empty(&pkg->conffiles)) {
+ return 0;
+ }
+
+ sprintf_alloc(&conffiles_file_name, "%s/conffiles", pkg->tmp_unpack_dir);
+ if (! file_exists(conffiles_file_name)) {
+ free(conffiles_file_name);
+ return 0;
+ }
+
+ conffiles_file = fopen(conffiles_file_name, "r");
+ if (conffiles_file == NULL) {
+ opkg_perror(ERROR, "Failed to open %s", conffiles_file_name);
+ free(conffiles_file_name);
+ return -1;
+ }
+ free(conffiles_file_name);
+
+ while (1) {
+ char *cf_name;
+ char *cf_name_in_dest;
+
+ cf_name = file_read_line_alloc(conffiles_file);
+ if (cf_name == NULL) {
+ break;
+ }
+ if (cf_name[0] == '\0') {
+ continue;
+ }
+
+ /* Prepend dest->root_dir to conffile name.
+ Take pains to avoid multiple slashes. */
+ root_dir = pkg->dest->root_dir;
+ if (conf->offline_root)
+ /* skip the offline_root prefix */
+ root_dir = pkg->dest->root_dir + strlen(conf->offline_root);
+ sprintf_alloc(&cf_name_in_dest, "%s%s", root_dir,
+ cf_name[0] == '/' ? (cf_name + 1) : cf_name);
+
+ /* Can't get an md5sum now, (file isn't extracted yet).
+ We'll wait until resolve_conffiles */
+ conffile_list_append(&pkg->conffiles, cf_name_in_dest, NULL);
+
+ free(cf_name);
+ free(cf_name_in_dest);
+ }
+
+ fclose(conffiles_file);
+
+ return 0;
+}
+
+/*
+ * Remove packages which were auto_installed due to a dependency by old_pkg,
+ * which are no longer a dependency in the new (upgraded) pkg.
+ */
+static int
+pkg_remove_orphan_dependent(pkg_t *pkg, pkg_t *old_pkg)
+{
+ int i, j, k, l, found,r, err = 0;
+ int n_deps;
+ pkg_t *p;
+ struct compound_depend *cd0, *cd1;
+ abstract_pkg_t **dependents;
+
+ int count0 = old_pkg->pre_depends_count +
+ old_pkg->depends_count +
+ old_pkg->recommends_count +
+ old_pkg->suggests_count;
+ int count1 = pkg->pre_depends_count +
+ pkg->depends_count +
+ pkg->recommends_count +
+ pkg->suggests_count;
+
+ for (i=0; i<count0; i++) {
+ cd0 = &old_pkg->depends[i];
+ if (cd0->type != DEPEND)
+ continue;
+ for (j=0; j<cd0->possibility_count; j++) {
+
+ found = 0;
+
+ for (k=0; k<count1; k++) {
+ cd1 = &pkg->depends[k];
+ if (cd1->type != DEPEND)
+ continue;
+ for (l=0; l<cd1->possibility_count; l++) {
+ if (cd0->possibilities[j]
+ == cd1->possibilities[l]) {
+ found = 1;
+ break;
+ }
+ }
+ if (found)
+ break;
+ }
+
+ if (found)
+ continue;
+
+ /*
+ * old_pkg has a dependency that pkg does not.
+ */
+ p = pkg_hash_fetch_installed_by_name(
+ cd0->possibilities[j]->pkg->name);
+
+ if (!p)
+ continue;
+
+ if (!p->auto_installed)
+ continue;
+
+ n_deps = pkg_has_installed_dependents(p, &dependents);
+ n_deps--; /* don't count old_pkg */
+
+ if (n_deps == 0) {
+ opkg_msg(NOTICE, "%s was autoinstalled and is "
+ "now orphaned, removing.\n",
+ p->name);
+
+ /* p has one installed dependency (old_pkg),
+ * which we need to ignore during removal. */
+ p->state_flag |= SF_REPLACE;
+
+ r = opkg_remove_pkg(p, 0);
+ if (!err)
+ err = r;
+ } else
+ opkg_msg(INFO, "%s was autoinstalled and is "
+ "still required by %d "
+ "installed packages.\n",
+ p->name, n_deps);
+
+ }
+ }
+
+ return err;
+}
+
+/* returns number of installed replacees */
+static int
+pkg_get_installed_replacees(pkg_t *pkg, pkg_vec_t *installed_replacees)
+{
+ abstract_pkg_t **replaces = pkg->replaces;
+ int replaces_count = pkg->replaces_count;
+ int i, j;
+ for (i = 0; i < replaces_count; i++) {
+ abstract_pkg_t *ab_pkg = replaces[i];
+ pkg_vec_t *pkg_vec = ab_pkg->pkgs;
+ if (pkg_vec) {
+ for (j = 0; j < pkg_vec->len; j++) {
+ pkg_t *replacee = pkg_vec->pkgs[j];
+ if (!pkg_conflicts(pkg, replacee))
+ continue;
+ if (replacee->state_status == SS_INSTALLED) {
+ pkg_vec_insert(installed_replacees, replacee);
+ }
+ }
+ }
+ }
+ return installed_replacees->len;
+}
+
+static int
+pkg_remove_installed_replacees(pkg_vec_t *replacees)
+{
+ int i;
+ int replaces_count = replacees->len;
+ for (i = 0; i < replaces_count; i++) {
+ pkg_t *replacee = replacees->pkgs[i];
+ int err;
+ replacee->state_flag |= SF_REPLACE; /* flag it so remove won't complain */
+ err = opkg_remove_pkg(replacee, 0);
+ if (err)
+ return err;
+ }
+ return 0;
+}
+
+/* to unwind the removal: make sure they are installed */
+static int
+pkg_remove_installed_replacees_unwind(pkg_vec_t *replacees)
+{
+ int i, err;
+ int replaces_count = replacees->len;
+ for (i = 0; i < replaces_count; i++) {
+ pkg_t *replacee = replacees->pkgs[i];
+ if (replacee->state_status != SS_INSTALLED) {
+ opkg_msg(DEBUG2, "Calling opkg_install_pkg.\n");
+ err = opkg_install_pkg(replacee, 0);
+ if (err)
+ return err;
+ }
+ }
+ return 0;
+}
+
+/* compares versions of pkg and old_pkg, returns 0 if OK to proceed with installation of pkg, 1 otherwise */
+static int
+opkg_install_check_downgrade(pkg_t *pkg, pkg_t *old_pkg, int message)
+{
+ if (old_pkg) {
+ char message_out[15];
+ char *old_version = pkg_version_str_alloc(old_pkg);
+ char *new_version = pkg_version_str_alloc(pkg);
+ int cmp = pkg_compare_versions(old_pkg, pkg);
+ int rc = 0;
+
+ memset(message_out,'\x0',15);
+ strncpy (message_out,"Upgrading ",strlen("Upgrading "));
+ if ( (conf->force_downgrade==1) && (cmp > 0) ){ /* We've been asked to allow downgrade and version is precedent */
+ cmp = -1 ; /* then we force opkg to downgrade */
+ strncpy (message_out,"Downgrading ",strlen("Downgrading ")); /* We need to use a value < 0 because in the 0 case we are asking to */
+ /* reinstall, and some check could fail asking the "force-reinstall" option */
+ }
+
+ if (cmp > 0) {
+ if(!conf->download_only)
+ opkg_msg(NOTICE,
+ "Not downgrading package %s on %s from %s to %s.\n",
+ old_pkg->name, old_pkg->dest->name, old_version, new_version);
+ rc = 1;
+ } else if (cmp < 0) {
+ if(!conf->download_only)
+ opkg_msg(NOTICE, "%s%s on %s from %s to %s...\n",
+ message_out, pkg->name, old_pkg->dest->name, old_version, new_version);
+ pkg->dest = old_pkg->dest;
+ rc = 0;
+ } else /* cmp == 0 */ {
+ if(!conf->download_only)
+ opkg_msg(NOTICE, "%s (%s) already install on %s.\n",
+ pkg->name, new_version, old_pkg->dest->name);
+ rc = 1;
+ }
+ free(old_version);
+ free(new_version);
+ return rc;
+ } else {
+ char message_out[15] ;
+ memset(message_out,'\x0',15);
+ if ( message )
+ strncpy( message_out,"Upgrading ",strlen("Upgrading ") );
+ else
+ strncpy( message_out,"Installing ",strlen("Installing ") );
+ char *version = pkg_version_str_alloc(pkg);
+
+ if(!conf->download_only)
+ opkg_msg(NOTICE, "%s%s (%s) to %s...\n", message_out,
+ pkg->name, version, pkg->dest->name);
+ free(version);
+ }
+ return 0;
+}
+
+
+static int
+prerm_upgrade_old_pkg(pkg_t *pkg, pkg_t *old_pkg)
+{
+ /* DPKG_INCOMPATIBILITY:
+ dpkg does some things here that we don't do yet. Do we care?
+
+ 1. If a version of the package is already installed, call
+ old-prerm upgrade new-version
+ 2. If the script runs but exits with a non-zero exit status
+ new-prerm failed-upgrade old-version
+ Error unwind, for both the above cases:
+ old-postinst abort-upgrade new-version
+ */
+ return 0;
+}
+
+static int
+prerm_upgrade_old_pkg_unwind(pkg_t *pkg, pkg_t *old_pkg)
+{
+ /* DPKG_INCOMPATIBILITY:
+ dpkg does some things here that we don't do yet. Do we care?
+ (See prerm_upgrade_old_package for details)
+ */
+ return 0;
+}
+
+static int
+prerm_deconfigure_conflictors(pkg_t *pkg, pkg_vec_t *conflictors)
+{
+ /* DPKG_INCOMPATIBILITY:
+ dpkg does some things here that we don't do yet. Do we care?
+ 2. If a 'conflicting' package is being removed at the same time:
+ 1. If any packages depended on that conflicting package and
+ --auto-deconfigure is specified, call, for each such package:
+ deconfigured's-prerm deconfigure \
+ in-favour package-being-installed version \
+ removing conflicting-package version
+ Error unwind:
+ deconfigured's-postinst abort-deconfigure \
+ in-favour package-being-installed-but-failed version \
+ removing conflicting-package version
+
+ The deconfigured packages are marked as requiring
+ configuration, so that if --install is used they will be
+ configured again if possible.
+ 2. To prepare for removal of the conflicting package, call:
+ conflictor's-prerm remove in-favour package new-version
+ Error unwind:
+ conflictor's-postinst abort-remove in-favour package new-version
+ */
+ return 0;
+}
+
+static int
+prerm_deconfigure_conflictors_unwind(pkg_t *pkg, pkg_vec_t *conflictors)
+{
+ /* DPKG_INCOMPATIBILITY: dpkg does some things here that we don't
+ do yet. Do we care? (See prerm_deconfigure_conflictors for
+ details) */
+ return 0;
+}
+
+static int
+preinst_configure(pkg_t *pkg, pkg_t *old_pkg)
+{
+ int err;
+ char *preinst_args;
+
+ if (old_pkg) {
+ char *old_version = pkg_version_str_alloc(old_pkg);
+ sprintf_alloc(&preinst_args, "upgrade %s", old_version);
+ free(old_version);
+ } else if (pkg->state_status == SS_CONFIG_FILES) {
+ char *pkg_version = pkg_version_str_alloc(pkg);
+ sprintf_alloc(&preinst_args, "install %s", pkg_version);
+ free(pkg_version);
+ } else {
+ preinst_args = xstrdup("install");
+ }
+
+ err = pkg_run_script(pkg, "preinst", preinst_args);
+ if (err) {
+ opkg_msg(ERROR, "Aborting installation of %s.\n", pkg->name);
+ return -1;
+ }
+
+ free(preinst_args);
+
+ return 0;
+}
+
+static int
+preinst_configure_unwind(pkg_t *pkg, pkg_t *old_pkg)
+{
+ /* DPKG_INCOMPATIBILITY:
+ dpkg does the following error unwind, should we?
+ pkg->postrm abort-upgrade old-version
+ OR pkg->postrm abort-install old-version
+ OR pkg->postrm abort-install
+ */
+ return 0;
+}
+
+static char *
+backup_filename_alloc(const char *file_name)
+{
+ char *backup;
+
+ sprintf_alloc(&backup, "%s%s", file_name, OPKG_BACKUP_SUFFIX);
+
+ return backup;
+}
+
+
+static int
+backup_make_backup(const char *file_name)
+{
+ int err;
+ char *backup;
+
+ backup = backup_filename_alloc(file_name);
+ err = file_copy(file_name, backup);
+ if (err) {
+ opkg_msg(ERROR, "Failed to copy %s to %s\n",
+ file_name, backup);
+ }
+
+ free(backup);
+
+ return err;
+}
+
+static int
+backup_exists_for(const char *file_name)
+{
+ int ret;
+ char *backup;
+
+ backup = backup_filename_alloc(file_name);
+
+ ret = file_exists(backup);
+
+ free(backup);
+
+ return ret;
+}
+
+static int
+backup_remove(const char *file_name)
+{
+ char *backup;
+
+ backup = backup_filename_alloc(file_name);
+ unlink(backup);
+ free(backup);
+
+ return 0;
+}
+
+static int
+backup_modified_conffiles(pkg_t *pkg, pkg_t *old_pkg)
+{
+ int err;
+ conffile_list_elt_t *iter;
+ conffile_t *cf;
+
+ if (conf->noaction) return 0;
+
+ /* Backup all modified conffiles */
+ if (old_pkg) {
+ for (iter = nv_pair_list_first(&old_pkg->conffiles); iter; iter = nv_pair_list_next(&old_pkg->conffiles, iter)) {
+ char *cf_name;
+
+ cf = iter->data;
+ cf_name = root_filename_alloc(cf->name);
+
+ /* Don't worry if the conffile is just plain gone */
+ if (file_exists(cf_name) && conffile_has_been_modified(cf)) {
+ err = backup_make_backup(cf_name);
+ if (err) {
+ return err;
+ }
+ }
+ free(cf_name);
+ }
+ }
+
+ /* Backup all conffiles that were not conffiles in old_pkg */
+ for (iter = nv_pair_list_first(&pkg->conffiles); iter; iter = nv_pair_list_next(&pkg->conffiles, iter)) {
+ char *cf_name;
+ cf = (conffile_t *)iter->data;
+ cf_name = root_filename_alloc(cf->name);
+ /* Ignore if this was a conffile in old_pkg as well */
+ if (pkg_get_conffile(old_pkg, cf->name)) {
+ continue;
+ }
+
+ if (file_exists(cf_name) && (! backup_exists_for(cf_name))) {
+ err = backup_make_backup(cf_name);
+ if (err) {
+ return err;
+ }
+ }
+ free(cf_name);
+ }
+
+ return 0;
+}
+
+static int
+backup_modified_conffiles_unwind(pkg_t *pkg, pkg_t *old_pkg)
+{
+ conffile_list_elt_t *iter;
+
+ if (old_pkg) {
+ for (iter = nv_pair_list_first(&old_pkg->conffiles); iter; iter = nv_pair_list_next(&old_pkg->conffiles, iter)) {
+ backup_remove(((nv_pair_t *)iter->data)->name);
+ }
+ }
+
+ for (iter = nv_pair_list_first(&pkg->conffiles); iter; iter = nv_pair_list_next(&pkg->conffiles, iter)) {
+ backup_remove(((nv_pair_t *)iter->data)->name);
+ }
+
+ return 0;
+}
+
+
+static int
+check_data_file_clashes(pkg_t *pkg, pkg_t *old_pkg)
+{
+ /* DPKG_INCOMPATIBILITY:
+ opkg takes a slightly different approach than dpkg at this
+ point. dpkg installs each file in the new package while
+ creating a backup for any file that is replaced, (so that it
+ can unwind if necessary). To avoid complexity and redundant
+ storage, opkg doesn't do any installation until later, (at the
+ point at which dpkg removes the backups.
+
+ But, we do have to check for data file clashes, since after
+ installing a package with a file clash, removing either of the
+ packages involved in the clash has the potential to break the
+ other package.
+ */
+ str_list_t *files_list;
+ str_list_elt_t *iter, *niter;
+ char *filename;
+ int clashes = 0;
+
+ files_list = pkg_get_installed_files(pkg);
+ if (files_list == NULL)
+ return -1;
+
+ for (iter = str_list_first(files_list), niter = str_list_next(files_list, iter);
+ iter;
+ iter = niter, niter = str_list_next(files_list, iter)) {
+ filename = (char *) iter->data;
+ if (file_exists(filename) && (! file_is_dir(filename))) {
+ pkg_t *owner;
+ pkg_t *obs;
+
+ if (backup_exists_for(filename)) {
+ continue;
+ }
+
+ /* Pre-existing files are OK if force-overwrite was asserted. */
+ if (conf->force_overwrite) {
+ /* but we need to change who owns this file */
+ file_hash_set_file_owner(filename, pkg);
+ continue;
+ }
+
+ owner = file_hash_get_file_owner(filename);
+
+ /* Pre-existing files are OK if owned by the pkg being upgraded. */
+ if (owner && old_pkg) {
+ if (strcmp(owner->name, old_pkg->name) == 0) {
+ continue;
+ }
+ }
+
+ /* Pre-existing files are OK if owned by a package replaced by new pkg. */
+ if (owner) {
+ opkg_msg(DEBUG2, "Checking replaces for %s in package %s\n",
+ filename, owner->name);
+ if (pkg_replaces(pkg, owner)) {
+ continue;
+ }
+/* If the file that would be installed is owned by the same package, ( as per a reinstall or similar )
+ then it's ok to overwrite. */
+ if (strcmp(owner->name,pkg->name)==0){
+ opkg_msg(INFO, "Replacing pre-existing file %s"
+ " owned by package %s\n",
+ filename, owner->name);
+ continue;
+ }
+ }
+
+ /* Pre-existing files are OK if they are obsolete */
+ obs = hash_table_get(&conf->obs_file_hash, filename);
+ if (obs) {
+ opkg_msg(INFO, "Pre-exiting file %s is obsolete."
+ " obs_pkg=%s\n",
+ filename, obs->name);
+ continue;
+ }
+
+ /* We have found a clash. */
+ opkg_msg(ERROR, "Package %s wants to install file %s\n"
+ "\tBut that file is already provided by package ",
+ pkg->name, filename);
+ if (owner) {
+ opkg_message(ERROR, "%s\n", owner->name);
+ } else {
+ opkg_message(ERROR, "<no package>\n"
+ "Please move this file out of the way and try again.\n");
+ }
+ clashes++;
+ }
+ }
+ pkg_free_installed_files(pkg);
+
+ return clashes;
+}
+
+/*
+ * XXX: This function sucks, as does the below comment.
+ */
+static int
+check_data_file_clashes_change(pkg_t *pkg, pkg_t *old_pkg)
+{
+ /* Basically that's the worst hack I could do to be able to change ownership of
+ file list, but, being that we have no way to unwind the mods, due to structure
+ of hash table, probably is the quickest hack too, whishing it would not slow-up thing too much.
+ What we do here is change the ownership of file in hash if a replace ( or similar events
+ happens )
+ Only the action that are needed to change name should be considered.
+ @@@ To change after 1.0 release.
+ */
+ str_list_t *files_list;
+ str_list_elt_t *iter, *niter;
+
+ char *root_filename = NULL;
+
+ files_list = pkg_get_installed_files(pkg);
+ if (files_list == NULL)
+ return -1;
+
+ for (iter = str_list_first(files_list), niter = str_list_next(files_list, iter);
+ iter;
+ iter = niter, niter = str_list_next(files_list, niter)) {
+ char *filename = (char *) iter->data;
+ if (root_filename) {
+ free(root_filename);
+ root_filename = NULL;
+ }
+ root_filename = root_filename_alloc(filename);
+ if (file_exists(root_filename) && (! file_is_dir(root_filename))) {
+ pkg_t *owner;
+
+ owner = file_hash_get_file_owner(filename);
+
+ if (conf->force_overwrite) {
+ /* but we need to change who owns this file */
+ file_hash_set_file_owner(filename, pkg);
+ continue;
+ }
+
+
+ /* Pre-existing files are OK if owned by a package replaced by new pkg. */
+ if (owner) {
+ if (pkg_replaces(pkg, owner)) {
+/* It's now time to change the owner of that file.
+ It has been "replaced" from the new "Replaces", then I need to inform lists file about that. */
+ opkg_msg(INFO, "Replacing pre-existing file %s "
+ "owned by package %s\n",
+ filename, owner->name);
+ file_hash_set_file_owner(filename, pkg);
+ continue;
+ }
+ }
+
+ }
+ }
+ if (root_filename) {
+ free(root_filename);
+ root_filename = NULL;
+ }
+ pkg_free_installed_files(pkg);
+
+ return 0;
+}
+
+static int
+check_data_file_clashes_unwind(pkg_t *pkg, pkg_t *old_pkg)
+{
+ /* Nothing to do since check_data_file_clashes doesn't change state */
+ return 0;
+}
+
+static int
+postrm_upgrade_old_pkg(pkg_t *pkg, pkg_t *old_pkg)
+{
+ /* DPKG_INCOMPATIBILITY: dpkg does the following here, should we?
+ 1. If the package is being upgraded, call
+ old-postrm upgrade new-version
+ 2. If this fails, attempt:
+ new-postrm failed-upgrade old-version
+ Error unwind, for both cases:
+ old-preinst abort-upgrade new-version */
+ return 0;
+}
+
+static int
+postrm_upgrade_old_pkg_unwind(pkg_t *pkg, pkg_t *old_pkg)
+{
+ /* DPKG_INCOMPATIBILITY:
+ dpkg does some things here that we don't do yet. Do we care?
+ (See postrm_upgrade_old_pkg for details)
+ */
+ return 0;
+}
+
+static int
+remove_obsolesced_files(pkg_t *pkg, pkg_t *old_pkg)
+{
+ int err = 0;
+ str_list_t *old_files;
+ str_list_elt_t *of;
+ str_list_t *new_files;
+ str_list_elt_t *nf;
+ hash_table_t new_files_table;
+
+ old_files = pkg_get_installed_files(old_pkg);
+ if (old_files == NULL)
+ return -1;
+
+ new_files = pkg_get_installed_files(pkg);
+ if (new_files == NULL) {
+ pkg_free_installed_files(old_pkg);
+ return -1;
+ }
+
+ new_files_table.entries = NULL;
+ hash_table_init("new_files" , &new_files_table, 20);
+ for (nf = str_list_first(new_files); nf; nf = str_list_next(new_files, nf)) {
+ if (nf && nf->data)
+ hash_table_insert(&new_files_table, nf->data, nf->data);
+ }
+
+ for (of = str_list_first(old_files); of; of = str_list_next(old_files, of)) {
+ pkg_t *owner;
+ char *old, *new;
+ old = (char *)of->data;
+ new = (char *) hash_table_get (&new_files_table, old);
+ if (new)
+ continue;
+
+ if (file_is_dir(old)) {
+ continue;
+ }
+ owner = file_hash_get_file_owner(old);
+ if (owner != old_pkg) {
+ /* in case obsolete file no longer belongs to old_pkg */
+ continue;
+ }
+
+ /* old file is obsolete */
+ opkg_msg(NOTICE, "Removing obsolete file %s.\n", old);
+ if (!conf->noaction) {
+ err = unlink(old);
+ if (err) {
+ opkg_perror(ERROR, "unlinking %s failed", old);
+ }
+ }
+ }
+
+ hash_table_deinit(&new_files_table);
+ pkg_free_installed_files(old_pkg);
+ pkg_free_installed_files(pkg);
+
+ return err;
+}
+
+static int
+install_maintainer_scripts(pkg_t *pkg, pkg_t *old_pkg)
+{
+ int ret;
+ char *prefix;
+
+ sprintf_alloc(&prefix, "%s.", pkg->name);
+ ret = pkg_extract_control_files_to_dir_with_prefix(pkg,
+ pkg->dest->info_dir,
+ prefix);
+ free(prefix);
+ return ret;
+}
+
+static int
+remove_disappeared(pkg_t *pkg)
+{
+ /* DPKG_INCOMPATIBILITY:
+ This is a fairly sophisticated dpkg operation. Shall we
+ skip it? */
+
+ /* Any packages all of whose files have been overwritten during the
+ installation, and which aren't required for dependencies, are
+ considered to have been removed. For each such package
+ 1. disappearer's-postrm disappear overwriter overwriter-version
+ 2. The package's maintainer scripts are removed
+ 3. It is noted in the status database as being in a sane state,
+ namely not installed (any conffiles it may have are ignored,
+ rather than being removed by dpkg). Note that disappearing
+ packages do not have their prerm called, because dpkg doesn't
+ know in advance that the package is going to vanish.
+ */
+ return 0;
+}
+
+static int
+install_data_files(pkg_t *pkg)
+{
+ int err;
+
+ /* opkg takes a slightly different approach to data file backups
+ than dpkg. Rather than removing backups at this point, we
+ actually do the data file installation now. See comments in
+ check_data_file_clashes() for more details. */
+
+ opkg_msg(INFO, "Extracting data files to %s.\n", pkg->dest->root_dir);
+ err = pkg_extract_data_files_to_dir(pkg, pkg->dest->root_dir);
+ if (err) {
+ return err;
+ }
+
+ /* The "Essential" control field may only be present in the control
+ * file and not in the Packages list. Ensure we capture it regardless.
+ *
+ * XXX: This should be fixed outside of opkg, in the Package list.
+ */
+ set_flags_from_control(pkg) ;
+
+ opkg_msg(DEBUG, "Calling pkg_write_filelist.\n");
+ err = pkg_write_filelist(pkg);
+ if (err)
+ return err;
+
+ /* XXX: FEATURE: opkg should identify any files which existed
+ before installation and which were overwritten, (see
+ check_data_file_clashes()). What it must do is remove any such
+ files from the filelist of the old package which provided the
+ file. Otherwise, if the old package were removed at some point
+ it would break the new package. Removing the new package will
+ also break the old one, but this cannot be helped since the old
+ package's file has already been deleted. This is the importance
+ of check_data_file_clashes(), and only allowing opkg to install
+ a clashing package with a user force. */
+
+ return 0;
+}
+
+static int
+resolve_conffiles(pkg_t *pkg)
+{
+ conffile_list_elt_t *iter;
+ conffile_t *cf;
+ char *cf_backup;
+ char *md5sum;
+
+ if (conf->noaction) return 0;
+
+ for (iter = nv_pair_list_first(&pkg->conffiles); iter; iter = nv_pair_list_next(&pkg->conffiles, iter)) {
+ char *root_filename;
+ cf = (conffile_t *)iter->data;
+ root_filename = root_filename_alloc(cf->name);
+
+ /* Might need to initialize the md5sum for each conffile */
+ if (cf->value == NULL) {
+ cf->value = file_md5sum_alloc(root_filename);
+ }
+
+ if (!file_exists(root_filename)) {
+ free(root_filename);
+ continue;
+ }
+
+ cf_backup = backup_filename_alloc(root_filename);
+
+ if (file_exists(cf_backup)) {
+ /* Let's compute md5 to test if files are changed */
+ md5sum = file_md5sum_alloc(cf_backup);
+ if (md5sum && cf->value && strcmp(cf->value,md5sum) != 0 ) {
+ if (conf->force_maintainer) {
+ opkg_msg(NOTICE, "Conffile %s using maintainer's setting.\n",
+ cf_backup);
+ } else {
+ char *new_conffile;
+ sprintf_alloc(&new_conffile, "%s-opkg", root_filename);
+ opkg_msg(ERROR, "Existing conffile %s "
+ "is different from the conffile in the new package."
+ " The new conffile will be placed at %s.\n",
+ root_filename, new_conffile);
+ rename(root_filename, new_conffile);
+ rename(cf_backup, root_filename);
+ free(new_conffile);
+ }
+ }
+ unlink(cf_backup);
+ if (md5sum)
+ free(md5sum);
+ }
+
+ free(cf_backup);
+ free(root_filename);
+ }
+
+ return 0;
+}
+
+
+int
+opkg_install_by_name(const char *pkg_name)
+{
+ int cmp;
+ pkg_t *old, *new;
+ char *old_version, *new_version;
+
+ old = pkg_hash_fetch_installed_by_name(pkg_name);
+ if (old)
+ opkg_msg(DEBUG2, "Old versions from pkg_hash_fetch %s.\n",
+ old->version);
+
+ new = pkg_hash_fetch_best_installation_candidate_by_name(pkg_name);
+ if (new == NULL) {
+ opkg_msg(NOTICE, "Unknown package '%s'.\n", pkg_name);
+ return -1;
+ }
+
+ opkg_msg(DEBUG2, "Versions from pkg_hash_fetch:");
+ if ( old )
+ opkg_message(DEBUG2, " old %s ", old->version);
+ opkg_message(DEBUG2, " new %s\n", new->version);
+
+ new->state_flag |= SF_USER;
+ if (old) {
+ old_version = pkg_version_str_alloc(old);
+ new_version = pkg_version_str_alloc(new);
+
+ cmp = pkg_compare_versions(old, new);
+ if ( (conf->force_downgrade==1) && (cmp > 0) ){ /* We've been asked to allow downgrade and version is precedent */
+ opkg_msg(DEBUG, "Forcing downgrade\n");
+ cmp = -1 ; /* then we force opkg to downgrade */
+ /* We need to use a value < 0 because in the 0 case we are asking to */
+ /* reinstall, and some check could fail asking the "force-reinstall" option */
+ }
+ opkg_msg(DEBUG, "Comparing visible versions of pkg %s:"
+ "\n\t%s is installed "
+ "\n\t%s is available "
+ "\n\t%d was comparison result\n",
+ pkg_name, old_version, new_version, cmp);
+ if (cmp == 0) {
+ opkg_msg(NOTICE,
+ "Package %s (%s) installed in %s is up to date.\n",
+ old->name, old_version, old->dest->name);
+ free(old_version);
+ free(new_version);
+ return 0;
+ } else if (cmp > 0) {
+ opkg_msg(NOTICE,
+ "Not downgrading package %s on %s from %s to %s.\n",
+ old->name, old->dest->name, old_version, new_version);
+ free(old_version);
+ free(new_version);
+ return 0;
+ } else if (cmp < 0) {
+ new->dest = old->dest;
+ old->state_want = SW_DEINSTALL;
+ }
+ free(old_version);
+ free(new_version);
+ }
+
+ opkg_msg(DEBUG2,"Calling opkg_install_pkg.\n");
+ return opkg_install_pkg(new, 0);
+}
+
+/**
+ * @brief Really install a pkg_t
+ */
+int
+opkg_install_pkg(pkg_t *pkg, int from_upgrade)
+{
+ int err = 0;
+ int message = 0;
+ pkg_t *old_pkg = NULL;
+ pkg_vec_t *replacees;
+ abstract_pkg_t *ab_pkg = NULL;
+ int old_state_flag;
+ char* file_md5;
+#ifdef HAVE_SHA256
+ char* file_sha256;
+#endif
+ sigset_t newset, oldset;
+
+ if ( from_upgrade )
+ message = 1; /* Coming from an upgrade, and should change the output message */
+
+ opkg_msg(DEBUG2, "Calling pkg_arch_supported.\n");
+
+ if (!pkg_arch_supported(pkg)) {
+ opkg_msg(ERROR, "INTERNAL ERROR: architecture %s for pkg %s is unsupported.\n",
+ pkg->architecture, pkg->name);
+ return -1;
+ }
+ if (pkg->state_status == SS_INSTALLED && conf->nodeps == 0) {
+ err = satisfy_dependencies_for(pkg);
+ if (err)
+ return -1;
+
+ opkg_msg(NOTICE, "Package %s is already installed on %s.\n",
+ pkg->name, pkg->dest->name);
+ return 0;
+ }
+
+ if (pkg->dest == NULL) {
+ pkg->dest = conf->default_dest;
+ }
+
+ old_pkg = pkg_hash_fetch_installed_by_name(pkg->name);
+
+ err = opkg_install_check_downgrade(pkg, old_pkg, message);
+ if (err)
+ return -1;
+
+ pkg->state_want = SW_INSTALL;
+ if (old_pkg){
+ old_pkg->state_want = SW_DEINSTALL; /* needed for check_data_file_clashes of dependencies */
+ }
+
+ err = check_conflicts_for(pkg);
+ if (err)
+ return -1;
+
+ /* this setup is to remove the upgrade scenario in the end when
+ installing pkg A, A deps B & B deps on A. So both B and A are
+ installed. Then A's installation is started resulting in an
+ uncecessary upgrade */
+ if (pkg->state_status == SS_INSTALLED)
+ return 0;
+
+ err = verify_pkg_installable(pkg);
+ if (err)
+ return -1;
+
+ if (pkg->local_filename == NULL) {
+ if(!conf->cache && conf->download_only){
+ char cwd[4096];
+ if(getcwd(cwd, sizeof(cwd)) != NULL)
+ err = opkg_download_pkg(pkg, cwd);
+ else
+ return -1;
+ } else {
+ err = opkg_download_pkg(pkg, conf->tmp_dir);
+ }
+ if (err) {
+ opkg_msg(ERROR, "Failed to download %s. "
+ "Perhaps you need to run 'opkg update'?\n",
+ pkg->name);
+ return -1;
+ }
+ }
+
+ /* check that the repository is valid */
+ #if defined(HAVE_GPGME) || defined(HAVE_OPENSSL)
+ char *list_file_name, *sig_file_name, *lists_dir;
+
+ /* check to ensure the package has come from a repository */
+ if (conf->check_signature && pkg->src)
+ {
+ sprintf_alloc (&lists_dir, "%s",
+ (conf->restrict_to_default_dest)
+ ? conf->default_dest->lists_dir
+ : conf->lists_dir);
+ sprintf_alloc (&list_file_name, "%s/%s", lists_dir, pkg->src->name);
+ sprintf_alloc (&sig_file_name, "%s/%s.sig", lists_dir, pkg->src->name);
+
+ if (file_exists (sig_file_name))
+ {
+ if (opkg_verify_file (list_file_name, sig_file_name)){
+ opkg_msg(ERROR, "Failed to verify the signature of %s.\n",
+ list_file_name);
+ return -1;
+ }
+ }else{
+ opkg_msg(ERROR, "Signature file is missing for %s. "
+ "Perhaps you need to run 'opkg update'?\n",
+ pkg->name);
+ return -1;
+ }
+
+ free (lists_dir);
+ free (list_file_name);
+ free (sig_file_name);
+ }
+ #endif
+
+ /* Check for md5 values */
+ if (pkg->md5sum)
+ {
+ file_md5 = file_md5sum_alloc(pkg->local_filename);
+ if (file_md5 && strcmp(file_md5, pkg->md5sum))
+ {
+ opkg_msg(ERROR, "Package %s md5sum mismatch. "
+ "Either the opkg or the package index are corrupt. "
+ "Try 'opkg update'.\n",
+ pkg->name);
+ free(file_md5);
+ return -1;
+ }
+ if (file_md5)
+ free(file_md5);
+ }
+
+#ifdef HAVE_SHA256
+ /* Check for sha256 value */
+ if(pkg->sha256sum)
+ {
+ file_sha256 = file_sha256sum_alloc(pkg->local_filename);
+ if (file_sha256 && strcmp(file_sha256, pkg->sha256sum))
+ {
+ opkg_msg(ERROR, "Package %s sha256sum mismatch. "
+ "Either the opkg or the package index are corrupt. "
+ "Try 'opkg update'.\n",
+ pkg->name);
+ free(file_sha256);
+ return -1;
+ }
+ if (file_sha256)
+ free(file_sha256);
+ }
+#endif
+ if(conf->download_only) {
+ if (conf->nodeps == 0) {
+ err = satisfy_dependencies_for(pkg);
+ if (err)
+ return -1;
+ }
+ return 0;
+ }
+
+ if (pkg->tmp_unpack_dir == NULL) {
+ if (unpack_pkg_control_files(pkg) == -1) {
+ opkg_msg(ERROR, "Failed to unpack control files from %s.\n",
+ pkg->local_filename);
+ return -1;
+ }
+ }
+
+ err = update_file_ownership(pkg, old_pkg);
+ if (err)
+ return -1;
+
+ if (conf->nodeps == 0) {
+ err = satisfy_dependencies_for(pkg);
+ if (err)
+ return -1;
+ if (pkg->state_status == SS_UNPACKED)
+ /* Circular dependency has installed it for us. */
+ return 0;
+ }
+
+ replacees = pkg_vec_alloc();
+ pkg_get_installed_replacees(pkg, replacees);
+
+ /* this next section we do with SIGINT blocked to prevent inconsistency between opkg database and filesystem */
+
+ sigemptyset(&newset);
+ sigaddset(&newset, SIGINT);
+ sigprocmask(SIG_BLOCK, &newset, &oldset);
+
+ opkg_state_changed++;
+ pkg->state_flag |= SF_FILELIST_CHANGED;
+
+ if (old_pkg)
+ pkg_remove_orphan_dependent(pkg, old_pkg);
+
+ /* XXX: BUG: we really should treat replacement more like an upgrade
+ * Instead, we're going to remove the replacees
+ */
+ err = pkg_remove_installed_replacees(replacees);
+ if (err)
+ goto UNWIND_REMOVE_INSTALLED_REPLACEES;
+
+ err = prerm_upgrade_old_pkg(pkg, old_pkg);
+ if (err)
+ goto UNWIND_PRERM_UPGRADE_OLD_PKG;
+
+ err = prerm_deconfigure_conflictors(pkg, replacees);
+ if (err)
+ goto UNWIND_PRERM_DECONFIGURE_CONFLICTORS;
+
+ err = preinst_configure(pkg, old_pkg);
+ if (err)
+ goto UNWIND_PREINST_CONFIGURE;
+
+ err = backup_modified_conffiles(pkg, old_pkg);
+ if (err)
+ goto UNWIND_BACKUP_MODIFIED_CONFFILES;
+
+ err = check_data_file_clashes(pkg, old_pkg);
+ if (err)
+ goto UNWIND_CHECK_DATA_FILE_CLASHES;
+
+ err = postrm_upgrade_old_pkg(pkg, old_pkg);
+ if (err)
+ goto UNWIND_POSTRM_UPGRADE_OLD_PKG;
+
+ if (conf->noaction)
+ return 0;
+
+ /* point of no return: no unwinding after this */
+ if (old_pkg) {
+ old_pkg->state_want = SW_DEINSTALL;
+
+ if (old_pkg->state_flag & SF_NOPRUNE) {
+ opkg_msg(INFO, "Not removing obsolesced files because "
+ "package %s marked noprune.\n",
+ old_pkg->name);
+ } else {
+ opkg_msg(INFO, "Removing obsolesced files for %s\n",
+ old_pkg->name);
+ if (remove_obsolesced_files(pkg, old_pkg)) {
+ opkg_msg(ERROR, "Failed to determine "
+ "obsolete files from previously "
+ "installed %s\n", old_pkg->name);
+ }
+ }
+
+ /* removing files from old package, to avoid ghost files */
+ remove_data_files_and_list(old_pkg);
+ remove_maintainer_scripts(old_pkg);
+
+ /* maintain the "Auto-Installed: yes" flag */
+ pkg->auto_installed = old_pkg->auto_installed;
+ }
+
+
+ opkg_msg(INFO, "Installing maintainer scripts.\n");
+ if (install_maintainer_scripts(pkg, old_pkg)) {
+ opkg_msg(ERROR, "Failed to extract maintainer scripts for %s."
+ " Package debris may remain!\n",
+ pkg->name);
+ goto pkg_is_hosed;
+ }
+
+ /* the following just returns 0 */
+ remove_disappeared(pkg);
+
+ opkg_msg(INFO, "Installing data files for %s.\n", pkg->name);
+
+ if (install_data_files(pkg)) {
+ opkg_msg(ERROR, "Failed to extract data files for %s. "
+ "Package debris may remain!\n",
+ pkg->name);
+ goto pkg_is_hosed;
+ }
+
+ err = check_data_file_clashes_change(pkg, old_pkg);
+ if (err) {
+ opkg_msg(ERROR, "check_data_file_clashes_change() failed for "
+ "for files belonging to %s.\n",
+ pkg->name);
+ }
+
+ opkg_msg(INFO, "Resolving conf files for %s\n", pkg->name);
+ resolve_conffiles(pkg);
+
+ pkg->state_status = SS_UNPACKED;
+ old_state_flag = pkg->state_flag;
+ pkg->state_flag &= ~SF_PREFER;
+ opkg_msg(DEBUG, "pkg=%s old_state_flag=%x state_flag=%x\n",
+ pkg->name, old_state_flag, pkg->state_flag);
+
+ if (old_pkg)
+ old_pkg->state_status = SS_NOT_INSTALLED;
+
+ time(&pkg->installed_time);
+
+ ab_pkg = pkg->parent;
+ if (ab_pkg)
+ ab_pkg->state_status = pkg->state_status;
+
+ sigprocmask(SIG_UNBLOCK, &newset, &oldset);
+ pkg_vec_free (replacees);
+ return 0;
+
+
+ UNWIND_POSTRM_UPGRADE_OLD_PKG:
+ postrm_upgrade_old_pkg_unwind(pkg, old_pkg);
+ UNWIND_CHECK_DATA_FILE_CLASHES:
+ check_data_file_clashes_unwind(pkg, old_pkg);
+ UNWIND_BACKUP_MODIFIED_CONFFILES:
+ backup_modified_conffiles_unwind(pkg, old_pkg);
+ UNWIND_PREINST_CONFIGURE:
+ preinst_configure_unwind(pkg, old_pkg);
+ UNWIND_PRERM_DECONFIGURE_CONFLICTORS:
+ prerm_deconfigure_conflictors_unwind(pkg, replacees);
+ UNWIND_PRERM_UPGRADE_OLD_PKG:
+ prerm_upgrade_old_pkg_unwind(pkg, old_pkg);
+ UNWIND_REMOVE_INSTALLED_REPLACEES:
+ pkg_remove_installed_replacees_unwind(replacees);
+
+pkg_is_hosed:
+ sigprocmask(SIG_UNBLOCK, &newset, &oldset);
+
+ pkg_vec_free (replacees);
+ return -1;
+}