Delete upstream source directory.

1 files changed, 0 insertions, 1528 deletions

diff --git a/src/libopkg/.svn/text-base/opkg_install.c.svn-base b/src/libopkg/.svn/text-base/opkg_install.c.svn-base
deleted file mode 100644
index 3925f58..0000000
--- a/src/libopkg/.svn/text-base/opkg_install.c.svn-base
+++ /dev/null
@@ -1,1528 +0,0 @@
-/* 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-			    "This could mean that your package list is out of date or that the packages\n"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;
-}