cscvs to tla changeset 74

[onak.git] / merge.c

diff --git a/merge.c b/merge.c
index 8bfbd09eb227c41dbeea3c0afbf1de9f44824157..33924f05e3078b886a94afb702b4e331b9a9f51f 100644 (file)
--- a/merge.c
+++ b/merge.c
@@ -9,20 +9,24 @@
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
+#include "decodekey.h"
 #include "keydb.h"
 #include "keyid.h"
 #include "keystructs.h"
 #include "ll.h"
+#include "log.h"
 #include "mem.h"
 #include "merge.h"
 
 /**
  *     compare_packets - Check to see if 2 OpenPGP packets are the same.
- *     @a: The first key to compare.
- *     @b: The second key to compare.
+ *     @a: The first packet to compare.
+ *     @b: The second packet to compare.
  *
- *     Takes 2 keys and returns true if they are the same and false otherwise.
+ *     Takes 2 packets and returns true if they are the same and false
+ *     otherwise.
  */
 bool compare_packets(struct openpgp_packet *a, struct openpgp_packet *b)
 {
@@ -30,6 +34,19 @@ bool compare_packets(struct openpgp_packet *a, struct openpgp_packet *b)
                !memcmp(a->data, b->data, b->length));
 }
 
+/**
+ *     compare_signatures - Check to see if 2 OpenPGP signatures are the same.
+ *     @a: The first signature to compare.
+ *     @b: The second signature to compare.
+ *
+ *     Takes 2 signature packets and returns true if they are the same and
+ *     false otherwise.
+ */
+bool compare_signatures(struct openpgp_packet *a, struct openpgp_packet *b)
+{
+       return (sig_keyid(a) == sig_keyid(b));
+}
+
 /**
  *     find_packet - Checks to see if an OpenPGP packet exists in a list.
  *     @packet_list: The list of packets to look in.
@@ -53,6 +70,31 @@ bool find_packet(struct openpgp_packet_list *packet_list,
        return found;
 }
 
+/**
+ *     find_signature - Checks to see if an OpenPGP signature exists in a list.
+ *     @packet_list: The list of packets to look in.
+ *     @packet: The signature to look for.
+ *
+ *     Walks through the packet_list checking to see if the signature given is
+ *     present in it. Returns a pointer to it if it is, NULL otherwise.
+ *
+ */
+struct openpgp_packet_list *find_signature(
+                       struct openpgp_packet_list *packet_list,
+                       struct openpgp_packet *packet)
+{
+       struct openpgp_packet_list *found = NULL;
+
+       while (!found && packet_list != NULL) {
+               if (compare_signatures(packet_list->packet, packet)) {
+                       found = packet_list;
+               }
+               packet_list = packet_list -> next;
+       }
+
+       return found;
+}
+
 /**
  *     get_signed_packet - Gets a signed packet from a list.
  *     @packet_list: The list of packets to look in.
@@ -135,7 +177,13 @@ int merge_packet_sigs(struct openpgp_signedpacket_list *old,
        curpacket = new->sigs;
        while (curpacket != NULL) {
                nextpacket = curpacket->next;
-               if (find_packet(old->sigs, curpacket->packet)) {
+               /*
+                * TODO: We should be checking the signature and then
+                * potentially merging/replacing it depending on the subpackets
+                * really. For now this stops us adding the same one twice
+                * however.
+                */ 
+               if (find_signature(old->sigs, curpacket->packet)) {
                        /*
                         * We already have this sig, remove it from the
                         * difference list and free the memory allocated for
@@ -307,7 +355,6 @@ int merge_keys(struct openpgp_publickey *a, struct openpgp_publickey *b)
 /**
  *     update_keys - Takes a list of public keys and updates them in the DB.
  *     @keys: The keys to update in the DB.
- *     @verbose: Should we output more information as we add keys?
  *
  *     Takes a list of keys and adds them to the database, merging them with
  *     the key in the database if it's already present there. The key list is
@@ -315,7 +362,7 @@ int merge_keys(struct openpgp_publickey *a, struct openpgp_publickey *b)
  *     we had before to what we have now (ie the set of data that was added to
  *     the DB). Returns the number of entirely new keys added.
  */
-int update_keys(struct openpgp_publickey **keys, bool verbose)
+int update_keys(struct openpgp_publickey **keys)
 {
        struct openpgp_publickey *curkey = NULL;
        struct openpgp_publickey *oldkey = NULL;
@@ -325,13 +372,10 @@ int update_keys(struct openpgp_publickey **keys, bool verbose)
 
        for (curkey = *keys; curkey != NULL; curkey = curkey->next) {
                intrans = starttrans();
-               if (verbose) {
-                       fprintf(stderr, "Fetching key 0x%llX, result: %d\n",
-                               get_keyid(curkey),
-                               fetch_key(get_keyid(curkey), &oldkey, intrans));
-               } else {
-                       fetch_key(get_keyid(curkey), &oldkey, intrans);
-               }
+               logthing(LOGTHING_INFO,
+                       "Fetching key 0x%llX, result: %d",
+                       get_keyid(curkey),
+                       fetch_key(get_keyid(curkey), &oldkey, intrans));
 
                /*
                 * If we already have the key stored in the DB then merge it
@@ -348,21 +392,21 @@ int update_keys(struct openpgp_publickey **keys, bool verbose)
                                        *keys = curkey->next;
                                } else {
                                        prev->next = curkey->next;
-                                       prev = curkey->next;
+                                       curkey->next = NULL;
+                                       free_publickey(curkey);
+                                       curkey = prev;
                                }
                        } else {
                                prev = curkey;
-                               if (verbose) {
-                                       fprintf(stderr, "Merged key; storing updated key.\n");
-                               }
+                               logthing(LOGTHING_INFO,
+                                       "Merged key; storing updated key.");
                                store_key(oldkey, intrans, true);
                        }
                        free_publickey(oldkey);
                        oldkey = NULL;
                } else {
-                       if (verbose) {
-                               fprintf(stderr, "Storing completely new key.\n");
-                       }
+                       logthing(LOGTHING_INFO,
+                               "Storing completely new key.");
                        store_key(curkey, intrans, false);
                        newkeys++;
                }