From 4c63745fe818b616feb3395c953ac1833d65b551 Mon Sep 17 00:00:00 2001
From: jbj <devnull@localhost>
Date: Thu, 17 Mar 2005 17:12:26 +0000
Subject: [PATCH] Add tagType().

CVS patchset: 7818
CVS date: 2005/03/17 17:12:26
---
 lib/rpmlib.h    | 16 ++++++++++++----
 rpmdb/tagname.c | 23 ++++++++++++++++++++++-
 2 files changed, 34 insertions(+), 5 deletions(-)

diff --git a/lib/rpmlib.h b/lib/rpmlib.h
index 0a24470..006721d 100644
--- a/lib/rpmlib.h
+++ b/lib/rpmlib.h
@@ -1058,9 +1058,17 @@ void rpmShowRpmlibProvides(FILE * fp)
 /*@}*/
 
 /**
- * Return name of tag from value.
+ * Return  tag data type from value.
  * @param tag		tag value
- * @return		name of tag
+ * @return		tag data type, RPM_NULL_TYPE on not found.
+ */
+int tagType(int tag)
+	/*@*/;
+
+/**
+ * Return tag name from value.
+ * @param tag		tag value
+ * @return		tag name, "(unknown)" on not found
  */
 /*@-redecl@*/
 /*@observer@*/ extern const char *const tagName(int tag)
@@ -1068,9 +1076,9 @@ void rpmShowRpmlibProvides(FILE * fp)
 /*@=redecl@*/
 
 /**
- * Return value of tag from name.
+ * Return tag value from name.
  * @param tagstr	name of tag
- * @return		tag value
+ * @return		tag value, -1 on not found
  */
 int tagValue(const char * tagstr)
 	/*@*/;
diff --git a/rpmdb/tagname.c b/rpmdb/tagname.c
index 02e4a8c..ef646ed 100644
--- a/rpmdb/tagname.c
+++ b/rpmdb/tagname.c
@@ -7,11 +7,32 @@
 #include <rpmlib.h>
 #include "debug.h"
 
+static int tagcmp(const void * a, const void * b)
+        /*@*/
+{
+    const headerTagTableEntry aptr = a;
+    const headerTagTableEntry bptr = b;
+    return (aptr->val - bptr->val);
+}
+
+int tagType(int tag)
+{
+    headerTagTableEntry t = memset(alloca(sizeof(*t)), 0, sizeof(*t));
+    headerTagTableEntry needle;
+    int tagtype = RPM_NULL_TYPE;
+
+    t->val = tag;
+    needle = bsearch(t, rpmTagTable, rpmTagTableSize, sizeof(*t), tagcmp);
+    if (needle != NULL)
+	tagtype = needle->type;
+    return tagtype;
+}
+
 const char *const tagName(int tag)
 {
-    int i;
     static char nameBuf[128];	/* XXX yuk */
     char *s;
+    int i;
 
     switch (tag) {
     case RPMDBI_PACKAGES:
-- 
2.7.4