Bug#193653: Please apply this patch for Triggers

[Torsten Knodt <tk-debian@datas-world.de>]

Package: dpkg
Version: unavailable; reported 2003-05-17
Severity: wishlist
Tags: sid patch

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hello,
please apply this patch, which introduced support for triggers. The patch is
written by Russell Coker <russell@coker.com.au> to allow the selinux package
to set the file contexts after package installations.

Regards
	Torsten

- -- System Information:
Debian Release: testing/unstable
Architecture: sh: line 1: /usr/bin/dpkg: Permission denied
Kernel: Linux tk-hybrid-1 2.4.20 #4 Son Mai 4 12:23:33 CEST 2003 i586
Locale: LANG=C, LC_CTYPE=C

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diff -uiwbBrN plain/dpkg-1.10.10/debian/dselect.substvars included/dpkg-1.10.10.se1/debian/dselect.substvars
--- plain/dpkg-1.10.10/debian/dselect.substvars	1970-01-01 01:00:00.000000000 +0100
+++ included/dpkg-1.10.10.se1/debian/dselect.substvars	2003-05-01 17:20:38.000000000 +0200
@@ -0,0 +1 @@
+shlibs:Depends=libc6 (>= 2.2.5-13), libncurses5 (>= 5.2.20020112a-1), libstdc++2.10-glibc2.2 (>= 1:2.95.4-0.010810)
diff -uiwbBrN plain/dpkg-1.10.10/debian/rules included/dpkg-1.10.10.se1/debian/rules
--- plain/dpkg-1.10.10/debian/rules	2003-04-26 22:10:12.000000000 +0200
+++ included/dpkg-1.10.10.se1/debian/rules	2003-05-01 17:20:38.000000000 +0200
@@ -162,6 +162,8 @@
 		$(TMP_DPKG)/usr/share/doc/dpkg$(static)/
 	install -p -m 644 -o root -g root debian/copyright \
 		$(TMP_DPKG)/usr/share/doc/dpkg$(static)/
+	install -d -m 755 -o root -g root $(TMP_DPKG)/etc/dpkg/preinst.d $(TMP_DPKG)/etc/dpkg/postinst.d
+	install -d -m 755 -o root -g root $(TMP_DPKG)/etc/dpkg/prerm.d $(TMP_DPKG)/etc/dpkg/postrm.d
 
 # Final package creation
 	install -d -m 755 -o root -g root $(TMP_DPKG)/DEBIAN
diff -uiwbBrN plain/dpkg-1.10.10/main/help.c included/dpkg-1.10.10.se1/main/help.c
--- plain/dpkg-1.10.10/main/help.c	2002-09-15 19:55:51.000000000 +0200
+++ included/dpkg-1.10.10.se1/main/help.c	2003-05-01 17:20:38.000000000 +0200
@@ -276,6 +276,21 @@
   return r;
 }
 
+static int run_trigger(int pre, const char * const pkg, const char * const script)
+{
+  char run_parts[1024];
+  int rc;
+  if(pre && !strncmp(script, "pre", 3))
+    return;
+  if(!pre && strncmp(script, "pre", 3))
+    return;
+  snprintf(run_parts, sizeof(run_parts), "/bin/run-parts --arg=%s /etc/dpkg/%s.d", pkg, script);
+  rc = system(run_parts);
+  if(rc)
+    printf("\"%s\" failed: %d\n", run_parts, rc);
+  return rc;
+}
+
 int maintainer_script_installed(struct pkginfo *pkg, const char *scriptname,
                                 const char *description, ...) {
   /* all ...'s are const char*'s */
@@ -291,15 +306,21 @@
   va_end(ap);
   sprintf(buf,"%s script",description);
 
+  if(run_trigger(1, pkg->name, scriptname))
+    ohshite(_("1Error running trigger %s"), scriptname);
   if (stat(scriptpath,&stab)) {
     if (errno == ENOENT) {
       debug(dbg_scripts,"maintainer_script_installed nonexistent %s",scriptname);
+      run_trigger(0, pkg->name, scriptname);
+/*        ohshite(_("2Error running trigger %s"), scriptname);*/
       return 0;
     }
     ohshite(_("unable to stat installed %s script `%.250s'"),description,scriptpath);
   }
   do_script(pkg->name, scriptname, scriptpath, &stab, arglist, _("unable to execute %s"), buf, 0);
   ensure_diversions();
+  run_trigger(0, pkg->name, scriptname);
+/*    ohshite(_("3Error running trigger %s"), scriptname); */
   return 1;
 }
   
@@ -317,15 +338,21 @@
   sprintf(buf,"%s script",description);
 
   strcpy(cidirrest,scriptname);
+  if(run_trigger(1, pkgname, scriptname))
+    ohshite(_("4Error running trigger %s"), scriptname);
   if (stat(cidir,&stab)) {
     if (errno == ENOENT) {
       debug(dbg_scripts,"maintainer_script_new nonexistent %s `%s'",scriptname,cidir);
+      run_trigger(0, pkgname, scriptname);
+/*        ohshite(_("5Error running trigger %s"), scriptname);*/
       return 0;
     }
     ohshite(_("unable to stat new %s script `%.250s'"),description,cidir);
   }
   do_script(pkgname, scriptname, cidir, &stab, arglist, _("unable to execute new %s"), buf, 0);
   ensure_diversions();
+  if(run_trigger(0, pkgname, scriptname))
+    ohshite(_("6Error running trigger %s"), scriptname);
   return 1;
 }
 
@@ -344,10 +371,14 @@
                                              vdew_nonambig),
                         (char*)0);
   sprintf(buf,_("old %s script"),description);
+  if(run_trigger(1, pkg->name, scriptname))
+    ohshite(_("7Error running trigger %s"), scriptname);
   if (stat(oldscriptpath,&stab)) {
     if (errno == ENOENT) {
       debug(dbg_scripts,"maintainer_script_alternative nonexistent %s `%s'",
             scriptname,oldscriptpath);
+      run_trigger(0, pkg->name, scriptname);
+/*        ohshite(_("8Error running trigger %s"), scriptname);*/
       return 0;
     }
     fprintf(stderr,
@@ -355,7 +386,11 @@
             buf,oldscriptpath,strerror(errno));
   } else {
     if (!do_script(pkg->name, scriptname, oldscriptpath, &stab, arglist, _("unable to execute %s"), buf, PROCWARN))
+    {
+      run_trigger(0, pkg->name, scriptname);
+/*        ohshite(_("9Error running trigger %s"), scriptname); */
       return 1;
+    }
     ensure_diversions();
   }
   fprintf(stderr, _("dpkg - trying script from the new package instead ...\n"));
@@ -378,6 +413,8 @@
   fprintf(stderr, _("dpkg: ... it looks like that went OK.\n"));
 
   ensure_diversions();
+  if(run_trigger(0, pkg->name, scriptname))
+    ohshite(_("aError running trigger %s"), scriptname);
   return 1;
 }