Adding upstream version 1.22.4.upstream/1.22.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 686 insertions, 0 deletions

diff --git a/src/main/remove.c b/src/main/remove.c
new file mode 100644
index 0000000..88c01a2
--- /dev/null
+++ b/src/main/remove.c
@@ -0,0 +1,686 @@
+/*
+ * dpkg - main program for package management
+ * remove.c - functionality for removing packages
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg.h>
+#include <dpkg/path.h>
+#include <dpkg/dir.h>
+#include <dpkg/options.h>
+#include <dpkg/triglib.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+/*
+ * pkgdepcheck may be a virtual pkg.
+ */
+static void checkforremoval(struct pkginfo *pkgtoremove,
+                            struct pkgset *pkgdepcheck,
+                            enum dep_check *rokp, struct varbuf *raemsgs)
+{
+  struct deppossi *possi;
+  struct pkginfo *depender;
+  enum dep_check ok;
+  struct varbuf_state raemsgs_state;
+
+  for (possi = pkgdepcheck->depended.installed; possi; possi = possi->rev_next) {
+    if (possi->up->type != dep_depends && possi->up->type != dep_predepends) continue;
+    depender= possi->up->up;
+    debug(dbg_depcon, "checking depending package '%s'",
+          pkg_name(depender, pnaw_always));
+    if (depender->status < PKG_STAT_UNPACKED)
+      continue;
+    if (ignore_depends(depender)) {
+      debug(dbg_depcon, "ignoring depending package '%s'",
+            pkg_name(depender, pnaw_always));
+      continue;
+    }
+    if (dependtry >= DEPEND_TRY_CYCLES) {
+      if (findbreakcycle(pkgtoremove))
+        sincenothing = 0;
+    }
+    varbuf_snapshot(raemsgs, &raemsgs_state);
+    ok= dependencies_ok(depender,pkgtoremove,raemsgs);
+    if (ok == DEP_CHECK_HALT &&
+        depender->clientdata &&
+        depender->clientdata->istobe == PKG_ISTOBE_REMOVE)
+      ok = DEP_CHECK_DEFER;
+    if (ok == DEP_CHECK_DEFER)
+      /* Don't burble about reasons for deferral. */
+      varbuf_rollback(&raemsgs_state);
+    if (ok < *rokp) *rokp= ok;
+  }
+}
+
+void deferred_remove(struct pkginfo *pkg) {
+  struct varbuf raemsgs = VARBUF_INIT;
+  struct dependency *dep;
+  enum dep_check rok;
+
+  debug(dbg_general, "deferred_remove package %s",
+        pkg_name(pkg, pnaw_always));
+
+  if (!f_pending && pkg->want != PKG_WANT_UNKNOWN) {
+    if (cipaction->arg_int == act_purge)
+      pkg_set_want(pkg, PKG_WANT_PURGE);
+    else
+      pkg_set_want(pkg, PKG_WANT_DEINSTALL);
+
+    if (!f_noact)
+      modstatdb_note(pkg);
+  }
+
+  ensure_package_clientdata(pkg);
+
+  if (pkg->status == PKG_STAT_NOTINSTALLED) {
+    sincenothing = 0;
+    warning(_("ignoring request to remove %.250s which isn't installed"),
+            pkg_name(pkg, pnaw_nonambig));
+    pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    return;
+  } else if (!f_pending &&
+             pkg->status == PKG_STAT_CONFIGFILES &&
+             cipaction->arg_int != act_purge) {
+    sincenothing = 0;
+    warning(_("ignoring request to remove %.250s, only the config\n"
+              " files of which are on the system; use --purge to remove them too"),
+            pkg_name(pkg, pnaw_nonambig));
+    pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    return;
+  }
+
+  if (pkg->status != PKG_STAT_CONFIGFILES) {
+    if (pkg->installed.essential)
+      forcibleerr(FORCE_REMOVE_ESSENTIAL,
+                  _("this is an essential package; it should not be removed"));
+    if (pkg->installed.is_protected)
+      forcibleerr(FORCE_REMOVE_PROTECTED,
+                  _("this is a protected package; it should not be removed"));
+  }
+
+  debug(dbg_general, "checking dependencies for remove '%s'",
+        pkg_name(pkg, pnaw_always));
+  rok = DEP_CHECK_OK;
+  checkforremoval(pkg, pkg->set, &rok, &raemsgs);
+  for (dep= pkg->installed.depends; dep; dep= dep->next) {
+    if (dep->type != dep_provides) continue;
+    debug(dbg_depcon, "checking virtual package '%s'", dep->list->ed->name);
+    checkforremoval(pkg, dep->list->ed, &rok, &raemsgs);
+  }
+
+  if (rok == DEP_CHECK_DEFER) {
+    varbuf_destroy(&raemsgs);
+    pkg->clientdata->istobe = PKG_ISTOBE_REMOVE;
+    enqueue_package(pkg);
+    return;
+  } else if (rok == DEP_CHECK_HALT) {
+    sincenothing= 0;
+    varbuf_end_str(&raemsgs);
+    notice(_("dependency problems prevent removal of %s:\n%s"),
+            pkg_name(pkg, pnaw_nonambig), raemsgs.buf);
+    ohshit(_("dependency problems - not removing"));
+  } else if (raemsgs.used) {
+    varbuf_end_str(&raemsgs);
+    notice(_("%s: dependency problems, but removing anyway as you requested:\n%s"),
+            pkg_name(pkg, pnaw_nonambig), raemsgs.buf);
+  }
+  varbuf_destroy(&raemsgs);
+  sincenothing= 0;
+
+  if (pkg->eflag & PKG_EFLAG_REINSTREQ)
+    forcibleerr(FORCE_REMOVE_REINSTREQ,
+                _("package is in a very bad inconsistent state; you should\n"
+                  " reinstall it before attempting a removal"));
+
+  ensure_allinstfiles_available();
+  fsys_hash_init();
+
+  if (f_noact) {
+    printf(_("Would remove or purge %s (%s) ...\n"),
+           pkg_name(pkg, pnaw_nonambig),
+           versiondescribe(&pkg->installed.version, vdew_nonambig));
+    pkg_set_status(pkg, PKG_STAT_NOTINSTALLED);
+    pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    return;
+  }
+
+  pkg_conffiles_mark_old(pkg);
+
+  /* Only print and log removal action once. This avoids duplication when
+   * using --remove and --purge in sequence. */
+  if (pkg->status > PKG_STAT_CONFIGFILES) {
+    printf(_("Removing %s (%s) ...\n"), pkg_name(pkg, pnaw_nonambig),
+           versiondescribe(&pkg->installed.version, vdew_nonambig));
+    log_action("remove", pkg, &pkg->installed);
+  }
+
+  trig_activate_packageprocessing(pkg);
+  if (pkg->status >= PKG_STAT_HALFCONFIGURED) {
+    static enum pkgstatus oldpkgstatus;
+
+    oldpkgstatus= pkg->status;
+    pkg_set_status(pkg, PKG_STAT_HALFCONFIGURED);
+    modstatdb_note(pkg);
+    push_cleanup(cu_prermremove, ~ehflag_normaltidy, 2,
+                 (void *)pkg, (void *)&oldpkgstatus);
+    maintscript_installed(pkg, PRERMFILE, "pre-removal", "remove", NULL);
+
+    /* Will turn into ‘half-installed’ soon ... */
+    pkg_set_status(pkg, PKG_STAT_UNPACKED);
+  }
+
+  removal_bulk(pkg);
+}
+
+static void
+push_leftover(struct fsys_namenode_list **leftoverp,
+              struct fsys_namenode *namenode)
+{
+  struct fsys_namenode_list *newentry;
+
+  newentry = nfmalloc(sizeof(*newentry));
+  newentry->next= *leftoverp;
+  newentry->namenode= namenode;
+  *leftoverp= newentry;
+}
+
+static void
+removal_bulk_remove_file(const char *filename, const char *filetype)
+{
+  /* We need the postrm and list files for --purge. */
+  if (strcmp(filetype, LISTFILE) == 0 ||
+      strcmp(filetype, POSTRMFILE) == 0)
+    return;
+
+  debug(dbg_stupidlyverbose, "removal_bulk info not postrm or list");
+
+  if (unlink(filename))
+    ohshite(_("unable to delete control info file '%.250s'"), filename);
+
+  debug(dbg_scripts, "removal_bulk info unlinked %s", filename);
+}
+
+static bool
+removal_bulk_file_is_shared(struct pkginfo *pkg, struct fsys_namenode *namenode)
+{
+  struct fsys_node_pkgs_iter *iter;
+  struct pkginfo *otherpkg;
+  bool shared = false;
+
+  if (pkgset_installed_instances(pkg->set) <= 1)
+    return false;
+
+  iter = fsys_node_pkgs_iter_new(namenode);
+  while ((otherpkg = fsys_node_pkgs_iter_next(iter))) {
+    if (otherpkg == pkg)
+      continue;
+    if (otherpkg->set != pkg->set)
+      continue;
+
+    debug(dbg_eachfiledetail, "removal_bulk file shared with %s, skipping",
+          pkg_name(otherpkg, pnaw_always));
+    shared = true;
+    break;
+  }
+  fsys_node_pkgs_iter_free(iter);
+
+  return shared;
+}
+
+static void
+removal_bulk_remove_files(struct pkginfo *pkg)
+{
+  struct fsys_hash_rev_iter rev_iter;
+  struct fsys_namenode_list *leftover;
+  struct fsys_namenode *namenode;
+  static struct varbuf fnvb;
+  struct varbuf_state fnvb_state;
+  struct stat stab;
+
+    pkg_set_status(pkg, PKG_STAT_HALFINSTALLED);
+    modstatdb_note(pkg);
+    push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+
+    fsys_hash_rev_iter_init(&rev_iter, pkg->files);
+    leftover = NULL;
+    while ((namenode = fsys_hash_rev_iter_next(&rev_iter))) {
+      struct fsys_namenode *usenode;
+      bool is_dir;
+
+      debug(dbg_eachfile, "removal_bulk '%s' flags=%o",
+            namenode->name, namenode->flags);
+
+      usenode = namenodetouse(namenode, pkg, &pkg->installed);
+
+      varbuf_set_str(&fnvb, dpkg_fsys_get_dir());
+      varbuf_add_str(&fnvb, usenode->name);
+      varbuf_end_str(&fnvb);
+      varbuf_snapshot(&fnvb, &fnvb_state);
+
+      is_dir = stat(fnvb.buf, &stab) == 0 && S_ISDIR(stab.st_mode);
+
+      /* A pkgset can share files between its instances that we
+       * don't want to remove, we just want to forget them. This
+       * applies to shared conffiles too. */
+      if (!is_dir && removal_bulk_file_is_shared(pkg, namenode))
+        continue;
+
+      /* Non-shared conffiles are kept. */
+      if (namenode->flags & FNNF_OLD_CONFF) {
+        push_leftover(&leftover, namenode);
+        continue;
+      }
+
+      if (is_dir) {
+        debug(dbg_eachfiledetail, "removal_bulk is a directory");
+        /* Only delete a directory or a link to one if we're the only
+         * package which uses it. Other files should only be listed
+         * in this package (but we don't check). */
+        if (dir_has_conffiles(namenode, pkg)) {
+	  push_leftover(&leftover,namenode);
+	  continue;
+	}
+        if (dir_is_used_by_pkg(namenode, pkg, leftover)) {
+          push_leftover(&leftover, namenode);
+          continue;
+        }
+        if (dir_is_used_by_others(namenode, pkg))
+          continue;
+
+        if (strcmp(usenode->name, "/.") == 0) {
+          debug(dbg_eachfiledetail,
+                "removal_bulk '%s' root directory, cannot remove", fnvb.buf);
+          push_leftover(&leftover, namenode);
+          continue;
+        }
+      }
+
+      trig_path_activate(usenode, pkg);
+
+      varbuf_rollback(&fnvb_state);
+      varbuf_add_str(&fnvb, DPKGTEMPEXT);
+      varbuf_end_str(&fnvb);
+      debug(dbg_eachfiledetail, "removal_bulk cleaning temp '%s'", fnvb.buf);
+      path_remove_tree(fnvb.buf);
+
+      varbuf_rollback(&fnvb_state);
+      varbuf_add_str(&fnvb, DPKGNEWEXT);
+      varbuf_end_str(&fnvb);
+      debug(dbg_eachfiledetail, "removal_bulk cleaning new '%s'", fnvb.buf);
+      path_remove_tree(fnvb.buf);
+
+      varbuf_rollback(&fnvb_state);
+      varbuf_end_str(&fnvb);
+
+      debug(dbg_eachfiledetail, "removal_bulk removing '%s'", fnvb.buf);
+      if (!rmdir(fnvb.buf) || errno == ENOENT || errno == ELOOP) continue;
+      if (errno == ENOTEMPTY || errno == EEXIST) {
+        debug(dbg_eachfiledetail,
+              "removal_bulk '%s' was not empty, will try again later",
+	      fnvb.buf);
+        push_leftover(&leftover,namenode);
+        continue;
+      } else if (errno == EBUSY || errno == EPERM) {
+        warning(_("while removing %.250s, unable to remove directory '%.250s': "
+                  "%s - directory may be a mount point?"),
+                pkg_name(pkg, pnaw_nonambig), namenode->name, strerror(errno));
+        push_leftover(&leftover,namenode);
+        continue;
+      }
+      if (errno != ENOTDIR)
+        ohshite(_("cannot remove '%.250s'"), fnvb.buf);
+      debug(dbg_eachfiledetail, "removal_bulk unlinking '%s'", fnvb.buf);
+      if (secure_unlink(fnvb.buf))
+        ohshite(_("unable to securely remove '%.250s'"), fnvb.buf);
+    }
+    write_filelist_except(pkg, &pkg->installed, leftover, 0);
+    maintscript_installed(pkg, POSTRMFILE, "post-removal", "remove", NULL);
+
+    trig_parse_ci(pkg_infodb_get_file(pkg, &pkg->installed, TRIGGERSCIFILE),
+                  trig_cicb_interest_delete, NULL, pkg, &pkg->installed);
+    trig_file_interests_save();
+
+    debug(dbg_general, "removal_bulk cleaning info directory");
+    pkg_infodb_foreach(pkg, &pkg->installed, removal_bulk_remove_file);
+    dir_sync_path(pkg_infodb_get_dir());
+
+    pkg_set_status(pkg, PKG_STAT_CONFIGFILES);
+    pkg->installed.essential = false;
+    pkg->installed.is_protected = false;
+    modstatdb_note(pkg);
+    push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+}
+
+static void removal_bulk_remove_leftover_dirs(struct pkginfo *pkg) {
+  struct fsys_hash_rev_iter rev_iter;
+  struct fsys_namenode_list *leftover;
+  struct fsys_namenode *namenode;
+  static struct varbuf fnvb;
+  struct stat stab;
+
+  /* We may have modified this previously. */
+  ensure_packagefiles_available(pkg);
+
+  modstatdb_note(pkg);
+  push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+
+  fsys_hash_rev_iter_init(&rev_iter, pkg->files);
+  leftover = NULL;
+  while ((namenode = fsys_hash_rev_iter_next(&rev_iter))) {
+    struct fsys_namenode *usenode;
+
+    debug(dbg_eachfile, "removal_bulk '%s' flags=%o",
+          namenode->name, namenode->flags);
+    if (namenode->flags & FNNF_OLD_CONFF) {
+      /* This can only happen if removal_bulk_remove_configfiles() got
+       * interrupted half way. */
+      debug(dbg_eachfiledetail, "removal_bulk expecting only left over dirs, "
+                                "ignoring conffile '%s'", namenode->name);
+      continue;
+    }
+
+    usenode = namenodetouse(namenode, pkg, &pkg->installed);
+
+    varbuf_set_str(&fnvb, dpkg_fsys_get_dir());
+    varbuf_add_str(&fnvb, usenode->name);
+    varbuf_end_str(&fnvb);
+
+    if (!stat(fnvb.buf,&stab) && S_ISDIR(stab.st_mode)) {
+      debug(dbg_eachfiledetail, "removal_bulk is a directory");
+      /* Only delete a directory or a link to one if we're the only
+       * package which uses it. Other files should only be listed
+       * in this package (but we don't check). */
+      if (dir_is_used_by_pkg(namenode, pkg, leftover)) {
+        push_leftover(&leftover, namenode);
+        continue;
+      }
+      if (dir_is_used_by_others(namenode, pkg))
+        continue;
+
+      if (strcmp(usenode->name, "/.") == 0) {
+        debug(dbg_eachfiledetail,
+              "removal_bulk '%s' root directory, cannot remove", fnvb.buf);
+        push_leftover(&leftover, namenode);
+        continue;
+      }
+    }
+
+    trig_path_activate(usenode, pkg);
+
+    debug(dbg_eachfiledetail, "removal_bulk removing '%s'", fnvb.buf);
+    if (!rmdir(fnvb.buf) || errno == ENOENT || errno == ELOOP) continue;
+    if (errno == ENOTEMPTY || errno == EEXIST) {
+      warning(_("while removing %.250s, directory '%.250s' not empty so not removed"),
+              pkg_name(pkg, pnaw_nonambig), namenode->name);
+      push_leftover(&leftover,namenode);
+      continue;
+    } else if (errno == EBUSY || errno == EPERM) {
+      warning(_("while removing %.250s, unable to remove directory '%.250s': "
+                "%s - directory may be a mount point?"),
+              pkg_name(pkg, pnaw_nonambig), namenode->name, strerror(errno));
+      push_leftover(&leftover,namenode);
+      continue;
+    }
+    if (errno != ENOTDIR)
+      ohshite(_("cannot remove '%.250s'"), fnvb.buf);
+
+    if (lstat(fnvb.buf, &stab) == 0 && S_ISLNK(stab.st_mode)) {
+      debug(dbg_eachfiledetail, "removal_bulk is a symlink to a directory");
+
+      if (unlink(fnvb.buf))
+        ohshite(_("cannot remove '%.250s'"), fnvb.buf);
+
+      continue;
+    }
+
+    push_leftover(&leftover,namenode);
+  }
+  write_filelist_except(pkg, &pkg->installed, leftover, 0);
+
+  modstatdb_note(pkg);
+  push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+}
+
+static void removal_bulk_remove_configfiles(struct pkginfo *pkg) {
+  static const char *const removeconffexts[] = { REMOVECONFFEXTS, NULL };
+  int rc;
+  int conffnameused, conffbasenamelen;
+  char *conffbasename;
+  struct conffile *conff, **lconffp;
+  struct fsys_namenode_list *searchfile;
+  DIR *dsd;
+  struct dirent *de;
+  char *p;
+  const char *const *ext;
+
+    printf(_("Purging configuration files for %s (%s) ...\n"),
+           pkg_name(pkg, pnaw_nonambig),
+           versiondescribe(&pkg->installed.version, vdew_nonambig));
+    log_action("purge", pkg, &pkg->installed);
+    trig_activate_packageprocessing(pkg);
+
+    /* We may have modified this above. */
+    ensure_packagefiles_available(pkg);
+
+    /* We're about to remove the configuration, so remove the note
+     * about which version it was ... */
+    dpkg_version_blank(&pkg->configversion);
+    modstatdb_note(pkg);
+
+    /* Remove from our list any conffiles that aren't ours any more or
+     * are involved in diversions, except if we are the package doing the
+     * diverting. */
+    for (lconffp = &pkg->installed.conffiles; (conff = *lconffp) != NULL; ) {
+      for (searchfile = pkg->files;
+           searchfile && strcmp(searchfile->namenode->name,conff->name);
+           searchfile= searchfile->next);
+      if (!searchfile) {
+        debug(dbg_conff, "removal_bulk conffile not ours any more '%s'",
+              conff->name);
+        *lconffp= conff->next;
+      } else if (searchfile->namenode->divert &&
+                 (searchfile->namenode->divert->camefrom ||
+                  (searchfile->namenode->divert->useinstead &&
+                   searchfile->namenode->divert->pkgset != pkg->set))) {
+        debug(dbg_conff, "removal_bulk conffile '%s' ignored due to diversion",
+              conff->name);
+        *lconffp= conff->next;
+      } else {
+        debug(dbg_conffdetail, "removal_bulk set to new conffile '%s'",
+              conff->name);
+        conff->hash = NEWCONFFILEFLAG;
+        lconffp= &conff->next;
+      }
+    }
+    modstatdb_note(pkg);
+
+    for (conff= pkg->installed.conffiles; conff; conff= conff->next) {
+      struct fsys_namenode *namenode, *usenode;
+    static struct varbuf fnvb, removevb;
+      struct varbuf_state removevb_state;
+
+      if (conff->obsolete) {
+	debug(dbg_conffdetail, "removal_bulk conffile obsolete %s",
+	      conff->name);
+      }
+      varbuf_reset(&fnvb);
+      rc = conffderef(pkg, &fnvb, conff->name);
+      debug(dbg_conffdetail, "removal_bulk conffile '%s' (= '%s')",
+            conff->name, rc == -1 ? "<rc == -1>" : fnvb.buf);
+      if (rc == -1)
+        continue;
+
+      namenode = fsys_hash_find_node(conff->name, FHFF_NONE);
+      usenode = namenodetouse(namenode, pkg, &pkg->installed);
+
+      trig_path_activate(usenode, pkg);
+
+      conffnameused = fnvb.used;
+      if (unlink(fnvb.buf) && errno != ENOENT && errno != ENOTDIR)
+        ohshite(_("cannot remove old config file '%.250s' (= '%.250s')"),
+                conff->name, fnvb.buf);
+      p= strrchr(fnvb.buf,'/'); if (!p) continue;
+      *p = '\0';
+      varbuf_reset(&removevb);
+      varbuf_add_dir(&removevb, fnvb.buf);
+      varbuf_end_str(&removevb);
+      varbuf_snapshot(&removevb, &removevb_state);
+
+      dsd= opendir(removevb.buf);
+      if (!dsd) {
+        int e=errno;
+        debug(dbg_conffdetail, "removal_bulk conffile no dsd %s %s",
+              fnvb.buf, strerror(e)); errno= e;
+        if (errno == ENOENT || errno == ENOTDIR) continue;
+        ohshite(_("cannot read config file directory '%.250s' (from '%.250s')"),
+                fnvb.buf, conff->name);
+      }
+      debug(dbg_conffdetail, "removal_bulk conffile cleaning dsd %s", fnvb.buf);
+      push_cleanup(cu_closedir, ~0, 1, (void *)dsd);
+      *p= '/';
+      conffbasenamelen= strlen(++p);
+      conffbasename= fnvb.buf+conffnameused-conffbasenamelen;
+      while ((de = readdir(dsd)) != NULL) {
+        debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry='%s'"
+              " conffbasename='%s' conffnameused=%d conffbasenamelen=%d",
+              de->d_name, conffbasename, conffnameused, conffbasenamelen);
+        if (strncmp(de->d_name, conffbasename, conffbasenamelen) == 0) {
+          debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry starts right");
+          for (ext= removeconffexts; *ext; ext++)
+            if (strcmp(*ext, de->d_name + conffbasenamelen) == 0)
+              goto yes_remove;
+          p= de->d_name+conffbasenamelen;
+          if (*p++ == '~') {
+            while (*p && c_isdigit(*p))
+              p++;
+            if (*p == '~' && !*++p) goto yes_remove;
+          }
+        }
+        debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry starts wrong");
+        if (de->d_name[0] == '#' &&
+            strncmp(de->d_name + 1, conffbasename, conffbasenamelen) == 0 &&
+            strcmp(de->d_name + 1 + conffbasenamelen, "#") == 0)
+          goto yes_remove;
+        debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry not it");
+        continue;
+      yes_remove:
+        varbuf_rollback(&removevb_state);
+        varbuf_add_str(&removevb, de->d_name);
+        varbuf_end_str(&removevb);
+        debug(dbg_conffdetail, "removal_bulk conffile dsd entry removing '%s'",
+              removevb.buf);
+        if (unlink(removevb.buf) && errno != ENOENT && errno != ENOTDIR)
+          ohshite(_("cannot remove old backup config file '%.250s' (of '%.250s')"),
+                  removevb.buf, conff->name);
+      }
+      pop_cleanup(ehflag_normaltidy); /* closedir */
+    }
+
+    /* Remove the conffiles from the file list file. */
+    write_filelist_except(pkg, &pkg->installed, pkg->files,
+                          FNNF_OLD_CONFF);
+
+    pkg->installed.conffiles = NULL;
+    modstatdb_note(pkg);
+
+    maintscript_installed(pkg, POSTRMFILE, "post-removal", "purge", NULL);
+}
+
+/*
+ * This is used both by deferred_remove() in this file, and at the end of
+ * process_archive() in archives.c if it needs to finish removing a
+ * conflicting package.
+ */
+void removal_bulk(struct pkginfo *pkg) {
+  bool foundpostrm;
+
+  debug(dbg_general, "removal_bulk package %s", pkg_name(pkg, pnaw_always));
+
+  if (pkg->status == PKG_STAT_HALFINSTALLED ||
+      pkg->status == PKG_STAT_UNPACKED) {
+    removal_bulk_remove_files(pkg);
+  }
+
+  foundpostrm = pkg_infodb_has_file(pkg, &pkg->installed, POSTRMFILE);
+
+  debug(dbg_general, "removal_bulk purging? foundpostrm=%d",foundpostrm);
+
+  if (!foundpostrm && !pkg->installed.conffiles) {
+    /* If there are no config files and no postrm script then we
+     * go straight into ‘purge’.  */
+    debug(dbg_general, "removal_bulk no postrm, no conffiles, purging");
+
+    pkg_set_want(pkg, PKG_WANT_PURGE);
+    dpkg_version_blank(&pkg->configversion);
+  } else if (pkg->want == PKG_WANT_PURGE) {
+    removal_bulk_remove_configfiles(pkg);
+  }
+
+  /* I.e., either of the two branches above. */
+  if (pkg->want == PKG_WANT_PURGE) {
+    const char *filename;
+
+    /* Retry empty directories, and warn on any leftovers that aren't. */
+    removal_bulk_remove_leftover_dirs(pkg);
+
+    filename = pkg_infodb_get_file(pkg, &pkg->installed, LISTFILE);
+    debug(dbg_general, "removal_bulk purge done, removing list '%s'",
+          filename);
+    if (unlink(filename) && errno != ENOENT)
+      ohshite(_("cannot remove old files list"));
+
+    filename = pkg_infodb_get_file(pkg, &pkg->installed, POSTRMFILE);
+    debug(dbg_general, "removal_bulk purge done, removing postrm '%s'",
+          filename);
+    if (unlink(filename) && errno != ENOENT)
+      ohshite(_("can't remove old postrm script"));
+
+    pkg_set_status(pkg, PKG_STAT_NOTINSTALLED);
+    pkg_set_want(pkg, PKG_WANT_UNKNOWN);
+
+    /* This will mess up reverse links, but if we follow them
+     * we won't go back because pkg->status is PKG_STAT_NOTINSTALLED. */
+    pkgbin_blank(&pkg->installed);
+  }
+
+  pkg_reset_eflags(pkg);
+  modstatdb_note(pkg);
+
+  debug(dbg_general, "removal done");
+}