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File rpmqpack.diff of Package rpm

Provide rpmqpack, a fast way to list all installed packages are
check if some package is installed. This is a hack.

--- ./Makefile.am.orig	2011-05-11 14:27:32.000000000 +0000
+++ ./Makefile.am	2011-05-11 15:15:27.000000000 +0000
@@ -170,6 +170,10 @@ rpmgraph_LDADD =	lib/librpm.la rpmio/lib
 
 dist_bin_SCRIPTS =	scripts/gendiff
 
+bin_PROGRAMS +=		rpmqpack
+rpmqpack_SOURCES =      rpmqpack.c
+rpmqpack_LDADD =        lib/librpm.la
+
 rpmconfig_DATA = rpmrc
 rpmrc: $(top_srcdir)/rpmrc.in
 	@$(SED) \
--- ./doc/Makefile.am.orig	2011-01-05 08:11:09.000000000 +0000
+++ ./doc/Makefile.am	2011-05-11 15:16:24.000000000 +0000
@@ -8,7 +8,7 @@ EXTRA_DIST += $(man_man1_DATA)
 
 man_man8dir = $(mandir)/man8
 man_man8_DATA = rpm.8 rpmbuild.8 rpmdeps.8 rpmgraph.8 rpm2cpio.8
-man_man8_DATA += rpmdb.8 rpmkeys.8 rpmsign.8 rpmspec.8
+man_man8_DATA += rpmdb.8 rpmkeys.8 rpmsign.8 rpmspec.8 rpmqpack.8
 EXTRA_DIST += $(man_man8_DATA)
 
 man_fr_man8dir = $(mandir)/fr/man8
--- ./doc/rpmqpack.8.orig	2011-05-11 15:15:27.000000000 +0000
+++ ./doc/rpmqpack.8	2011-05-11 15:15:27.000000000 +0000
@@ -0,0 +1,25 @@
+.TH RPMQPACK 8 "Mar 2002"
+.SH NAME
+rpmqpack \- check for installed rpm packages
+
+.SH SYNOPSIS
+.B rpmqpack
+.RI [ pack1 "] [" pack2 ]...
+
+.SH DESCRIPTION
+rpmqpack checks if packages given as arguments are installed in
+the system. It prints each installed package to stdout.
+If no arguments are given all installed packages are printed.
+
+.SH EXIT STATUS
+rpmqpack returns 0 if all given packages are installed, otherwise
+1.
+
+.SH SEE ALSO
+.BR rpm (1)
+
+.SH COPYRIGHT
+2002 SUSE Linux AG Nuernberg, Germany.
+
+.SH AUTHOR
+Michael Schroeder <mls@suse.de>
--- ./rpmqpack.c.orig	2011-05-11 15:15:27.000000000 +0000
+++ ./rpmqpack.c	2011-05-11 15:15:27.000000000 +0000
@@ -0,0 +1,59 @@
+#include <sys/types.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <db.h>
+
+DBT key;
+DBT data;
+
+int
+main(int argc, char **argv)
+{
+  DB *db = 0;
+  DBC *dbc = 0;
+  int ret = 0;
+
+  if (db_create(&db, 0, 0))
+    {
+      perror("db_create");
+      exit(1);
+    }
+  if (db->open(db, 0, "/var/lib/rpm/Name", 0, DB_UNKNOWN, DB_RDONLY, 0664))
+    {
+      perror("db->open");
+      exit(1);
+    }
+  if (argc == 1)
+    {
+      if (db->cursor(db, NULL, &dbc, 0))
+	{
+	  perror("db->cursor");
+	  exit(1);
+	}
+      while (dbc->c_get(dbc, &key, &data, DB_NEXT) == 0)
+	printf("%*.*s\n", (int)key.size, (int)key.size, (char *)key.data);
+      dbc->c_close(dbc);
+    }
+  else
+    {
+      argc--;
+      while (argc--)
+	{
+	  argv++;
+	  key.data = (void *)*argv;
+	  key.size = strlen(*argv);
+	  data.data = NULL;
+	  data.size = 0;
+	  if (db->get(db, 0, &key, &data, 0) == 0)
+	    printf("%s\n", *argv);
+	  else
+	    ret = 1;
+	}
+    }
+  db->close(db, 0);
+  return ret;
+}