Add rpmdbExtendIterator to do repeated searches

diff --git a/lib/rpmdb.c b/lib/rpmdb.c
index f1fd8d1..5065f6e 100644 (file)
--- a/lib/rpmdb.c
+++ b/lib/rpmdb.c
@@ -2335,6 +2335,21 @@ rpmdbMatchIterator rpmdbInitIterator(rpmdb db, rpmTag rpmtag,
     return mi;
 }
 
+/** \ingroup rpmdb
+ * Return database iterator.
+ * @param mi           rpm database iterator
+ * @param keyp         key data (NULL for sequential access)
+ * @param keylen       key data length (0 will use strlen(keyp))
+ * @return             0 on success
+ */
+int rpmdbExtendIterator(rpmdbMatchIterator mi,
+                       const void * keyp, size_t keylen)
+{
+    mi->mi_key.data = (void *) keyp;
+    mi->mi_key.size = keylen ? keylen : strlen(keyp);
+    return rpmdbGrowIterator(mi, 0);
+}
+
 /*
  * Convert current tag data to db key
  * @param tagdata      Tag data container

diff --git a/lib/rpmdb_internal.h b/lib/rpmdb_internal.h
index 7ca5e0d..010a28d 100644 (file)
--- a/lib/rpmdb_internal.h
+++ b/lib/rpmdb_internal.h
@@ -661,6 +661,16 @@ unsigned int dbiIndexRecordOffset(dbiIndexSet set, int recno);
 RPM_GNUC_INTERNAL
 unsigned int dbiIndexRecordFileNumber(dbiIndexSet set, int recno);
 
+/** \ingroup rpmdb
+ * Return database iterator.
+ * @param mi           rpm database iterator
+ * @param keyp         key data (NULL for sequential access)
+ * @param keylen       key data length (0 will use strlen(keyp))
+ * @return             0 on success
+ */
+int rpmdbExtendIterator(rpmdbMatchIterator mi,
+                       const void * keyp, size_t keylen);
+
 #ifndef __APPLE__
 /**
  *  * Mergesort, same arguments as qsort(2).