X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/6bcfac5f53de9dff2f646da360b7da1a6e3aa7c1..cfbbd6655346497ab28d50d2b5c34f0c5d9ce5ce:/cleankey.c

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+/*
+ * cleankey.c - Routines to look for common key problems and clean them up.
+ *
+ * Jonathan McDowell <noodles@earth.li>
+ *
+ * Copyright 2004 Project Purple
+ *
+ * $Id: cleankey.c,v 1.1 2004/05/31 14:16:49 noodles Exp $
+ */
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "cleankey.h"
+#include "keystructs.h"
+#include "mem.h"
+#include "merge.h"
+#include "log.h"
+
+/**
+ *	dedupuids - Merge duplicate uids on a key.
+ *	@key: The key to de-dup uids on.
+ *
+ *	This function attempts to merge duplicate IDs on a key. It returns 0
+ *	if the key is unchanged, otherwise the number of dups merged.
+ */
+int dedupuids(struct openpgp_publickey *key)
+{
+	struct openpgp_signedpacket_list *curuid = NULL;
+	struct openpgp_signedpacket_list *dup = NULL;
+	struct openpgp_signedpacket_list *tmp = NULL;
+	int                               merged = 0;
+
+	assert(key != NULL);
+	curuid = key->uids;
+	while (curuid != NULL) {
+		dup = find_signed_packet(curuid->next, curuid->packet);
+		while (dup != NULL) {
+			logthing(LOGTHING_INFO, "Found duplicate uid: %.*s",
+					curuid->packet->length,
+					curuid->packet->data);
+			merged++;
+			merge_packet_sigs(curuid, dup);
+			/*
+			 * Remove the duplicate uid.
+			 */
+			tmp = curuid;
+			while (tmp != NULL && tmp->next != dup) {
+				tmp = tmp->next;
+			}
+			assert(tmp != NULL);
+			tmp->next = dup->next;
+			dup->next = NULL;
+			free_signedpacket_list(dup);
+
+			dup = find_signed_packet(curuid->next, curuid->packet);
+		}
+		curuid = curuid->next;
+	}
+
+	return merged;
+}
+
+/**
+ *	cleankeys - Apply all available cleaning options on a list of keys.
+ *	@keys: The list of keys to clean.
+ *
+ *	Applies all the cleaning options we can (eg duplicate key ids) to a
+ *	list of keys. Returns 0 if no changes were made, otherwise the number
+ *	of keys cleaned.
+ */
+int cleankeys(struct openpgp_publickey *keys)
+{
+	int changed = 0;
+
+	while (keys != NULL) {
+		if (dedupuids(keys) > 0) {
+			changed++;
+		}
+		keys = keys->next;
+	}
+
+	return changed;
+}