cscvs to tla changeset 125

[onak.git] / photoid.c

diff --git a/photoid.c b/photoid.c
new file mode 100644 (file)
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--- /dev/null
+++ b/photoid.c
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+/*
+ * photoid.c - Routines for OpenPGP id photos.
+ *
+ * Jonathan McDowell <noodles@earth.li>
+ *
+ * Copyright 2004 Project Purple
+ *
+ * $Id: photoid.c,v 1.1 2004/05/27 01:25:37 noodles Exp $
+ */
+
+#include <assert.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "keyid.h"
+#include "keyindex.h"
+#include "keystructs.h"
+
+/**
+ *     getphoto - returns an OpenPGP packet containing a photo id.
+ *     @key: The key to return the photo id from.
+ *     @index: The index of the photo to return.
+ *
+ *     This function returns the OpenPGP packet containing a photo id from a
+ *     supplied key. index specifies which photo id should be returned. If
+ *     there's no such photo id NULL is returned.
+ */
+struct openpgp_packet *getphoto(struct openpgp_publickey *key, int index)
+{
+       struct openpgp_signedpacket_list *curuid = NULL;
+       struct openpgp_packet            *photo = NULL;
+       int                               i = 0;
+
+       assert(key != NULL);
+
+       curuid = key->uids;
+       i = 0;
+       while (photo == NULL && curuid != NULL && i <= index) {
+               if (curuid->packet->tag == 17) {
+                       if (i == index) {
+                               photo = curuid->packet;
+                       } else {
+                               i++;
+                       }
+               }
+               curuid = curuid->next;
+       }
+
+       return photo;
+}