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diff --git a/src/libopkg/.svn/text-base/opkg_upgrade.c.svn-base b/src/libopkg/.svn/text-base/opkg_upgrade.c.svn-base
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+/* opkg_upgrade.c - the opkg package management system
+
+ Carl D. Worth
+ Copyright (C) 2001 University of Southern California
+
+ Copyright (C) 2003 Daniele Nicolodi <daniele@grinta.net>
+
+ 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 <stdio.h>
+#include <stdlib.h>
+
+#include "opkg_install.h"
+#include "opkg_upgrade.h"
+#include "opkg_message.h"
+
+int
+opkg_upgrade_pkg(pkg_t *old)
+{
+ pkg_t *new;
+ int cmp;
+ char *old_version, *new_version;
+
+ if (old->state_flag & SF_HOLD) {
+ opkg_msg(NOTICE, "Not upgrading package %s which is marked "
+ "hold (flags=%#x).\n", old->name, old->state_flag);
+ return 0;
+ }
+
+ new = pkg_hash_fetch_best_installation_candidate_by_name(old->name);
+ if (new == NULL) {
+ old_version = pkg_version_str_alloc(old);
+ opkg_msg(NOTICE, "Assuming locally installed package %s (%s) "
+ "is up to date.\n", old->name, old_version);
+ free(old_version);
+ return 0;
+ }
+
+ old_version = pkg_version_str_alloc(old);
+ new_version = pkg_version_str_alloc(new);
+
+ cmp = pkg_compare_versions(old, new);
+ 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",
+ old->name, old_version, new_version, cmp);
+ if (cmp == 0) {
+ opkg_msg(INFO, "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);
+ new->state_flag |= SF_USER;
+ return opkg_install_pkg(new,1);
+}
+
+
+static void
+pkg_hash_check_installed_pkg_helper(const char *pkg_name, void *entry,
+ void *data)
+{
+ struct active_list *head = (struct active_list *) data;
+ abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
+ pkg_vec_t *pkg_vec = ab_pkg->pkgs;
+ int j;
+
+ if (!pkg_vec)
+ return;
+
+ for (j = 0; j < pkg_vec->len; j++) {
+ pkg_t *pkg = pkg_vec->pkgs[j];
+ if (pkg->state_status == SS_INSTALLED
+ || pkg->state_status == SS_UNPACKED)
+ active_list_add(head, &pkg->list);
+ }
+}
+
+struct active_list *
+prepare_upgrade_list(void)
+{
+ struct active_list *head = active_list_head_new();
+ struct active_list *all = active_list_head_new();
+ struct active_list *node=NULL;
+
+ /* ensure all data is valid */
+ pkg_info_preinstall_check();
+
+ hash_table_foreach(&conf->pkg_hash, pkg_hash_check_installed_pkg_helper, all);
+ for (node=active_list_next(all,all); node; node = active_list_next(all, node)) {
+ pkg_t *old, *new;
+ int cmp;
+
+ old = list_entry(node, pkg_t, list);
+ new = pkg_hash_fetch_best_installation_candidate_by_name(old->name);
+
+ if (new == NULL)
+ continue;
+
+ cmp = pkg_compare_versions(old, new);
+
+ if ( cmp < 0 ) {
+ node = active_list_move_node(all, head, &old->list);
+ }
+ }
+ active_list_head_delete(all);
+ return head;
+}