Add support for calculating SKS style key hashes

[onak.git] / parsekey.c

diff --git a/parsekey.c b/parsekey.c
index b492937dd8289a167df4a323baf3a786d83021e7..2d9510697cbe8d893f9ae6c8017f6b419ba8b476 100644 (file)
--- a/parsekey.c
+++ b/parsekey.c
@@ -4,11 +4,8 @@
  * Jonathan McDowell <noodles@earth.li>
  *
  * Copyright 2002 Project Purple
  * Jonathan McDowell <noodles@earth.li>
  *
  * Copyright 2002 Project Purple

- *
- * $Id: parsekey.c,v 1.14 2003/09/30 21:59:33 noodles Exp $

  */
 
  */
 

-#include <assert.h>

 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>


@@ -21,20 +18,6 @@
 #include "mem.h"
 #include "parsekey.h"
 
 #include "mem.h"
 #include "parsekey.h"
 

-/**
- *     add_key - Takes a key and adds it to the keyserver.
- *     @key: The public key to add.
- *
- *     This function takes a public key and adds it to the keyserver.
- *     It first of all sees if we already have the key locally. If we do then
- *     we retrieve it and merge the two keys. We then store the resulting key
- *     (or just the original we received if we don't already have it). We then
- *     send out the appropriate updates to our keyserver peers.
- */
-int add_key(struct openpgp_publickey *key) {
-       return 0;
-}
-

 /**
  *     parse_keys - Process a stream of packets for public keys + sigs.
  *     @packets: The packet list to parse.
 /**
  *     parse_keys - Process a stream of packets for public keys + sigs.
  *     @packets: The packet list to parse.


@@ -65,10 +48,9 @@ int parse_keys(struct openpgp_packet_list *packets,
                case 2:
                        /*
                         * It's a signature packet. Add it to either the public
                case 2:
                        /*
                         * It's a signature packet. Add it to either the public

-                        * key (it should be a revocation), to the current UID
-                        * or the current subkey.
+                        * key, to the current UID or the current subkey.

                         */
                         */

-                       assert(curkey != NULL);
+                       log_assert(curkey != NULL);

                        if (curkey->subkeys != NULL) {
                                ADD_PACKET_TO_LIST_END(curkey->last_subkey,
                                        sig,
                        if (curkey->subkeys != NULL) {
                                ADD_PACKET_TO_LIST_END(curkey->last_subkey,
                                        sig,


@@ -79,8 +61,25 @@ int parse_keys(struct openpgp_packet_list *packets,
                                        packet_dup(packets->packet));
                        } else {
                                ADD_PACKET_TO_LIST_END(curkey,
                                        packet_dup(packets->packet));
                        } else {
                                ADD_PACKET_TO_LIST_END(curkey,

-                                       revocation,
+                                       sig,

                                        packet_dup(packets->packet));
                                        packet_dup(packets->packet));

+                               /*
+                                * This is a signature on the public key; check
+                                * if it's a revocation.
+                                */
+                               if (packets->packet->data[0] == 3 &&
+                                       packets->packet->data[2] == 0x20) {
+                                       /*
+                                        * Type 3 key, 0x20 == revocation
+                                        */
+                                       curkey->revoked = true;
+                               } else if (packets->packet->data[0] == 4 &&
+                                       packets->packet->data[1] == 0x20) {
+                                       /*
+                                        * Type 4 key, 0x20 == revocation
+                                        */
+                                       curkey->revoked = true;
+                               }

                        }
                        break;
                case 6:
                        }
                        break;
                case 6:


@@ -104,8 +103,8 @@ int parse_keys(struct openpgp_packet_list *packets,
                        /*
                         * It's a UID packet (or a photo id, which is similar).
                         */
                        /*
                         * It's a UID packet (or a photo id, which is similar).
                         */

-                       assert(curkey != NULL);
-                       assert(curkey->subkeys == NULL);
+                       log_assert(curkey != NULL);
+                       log_assert(curkey->subkeys == NULL);

                        ADD_PACKET_TO_LIST_END(curkey,
                                uid,
                                packet_dup(packets->packet));
                        ADD_PACKET_TO_LIST_END(curkey,
                                uid,
                                packet_dup(packets->packet));


@@ -114,7 +113,7 @@ int parse_keys(struct openpgp_packet_list *packets,
                        /*
                         * It's a subkey packet.
                         */
                        /*
                         * It's a subkey packet.
                         */

-                       assert(curkey != NULL);
+                       log_assert(curkey != NULL);

                        ADD_PACKET_TO_LIST_END(curkey,
                                subkey,
                                packet_dup(packets->packet));
                        ADD_PACKET_TO_LIST_END(curkey,
                                subkey,
                                packet_dup(packets->packet));


@@ -149,7 +148,7 @@ int parse_keys(struct openpgp_packet_list *packets,
  */
 int debug_packet(struct openpgp_packet *packet)
 {
  */
 int debug_packet(struct openpgp_packet *packet)
 {

-       printf("\tNew format: %d, Tag: %d, Length: %d\n",
+       printf("\tNew format: %d, Tag: %u, Length: %zd\n",

                        packet->newformat,
                        packet->tag,
                        packet->length);
                        packet->newformat,
                        packet->tag,
                        packet->length);


@@ -169,19 +168,18 @@ int debug_packet(struct openpgp_packet *packet)
  *     ready for parsing as a public key or whatever.
  */
 int read_openpgp_stream(int (*getchar_func)(void *ctx, size_t count,
  *     ready for parsing as a public key or whatever.
  */
 int read_openpgp_stream(int (*getchar_func)(void *ctx, size_t count,

-                               unsigned char *c),
+                               void *c),

                                void *ctx,
                                struct openpgp_packet_list **packets,
                                int maxnum)
 {
        unsigned char                    curchar = 0;
                                void *ctx,
                                struct openpgp_packet_list **packets,
                                int maxnum)
 {
        unsigned char                    curchar = 0;

-       unsigned long                    count = 0;

        struct openpgp_packet_list      *curpacket = NULL;
        int                              rc = 0;
        int                              keys = 0;
        bool                             inpacket = false;
 
        struct openpgp_packet_list      *curpacket = NULL;
        int                              rc = 0;
        int                              keys = 0;
        bool                             inpacket = false;
 

-       assert(packets != NULL);
+       log_assert(packets != NULL);

        curpacket = *packets;
        if (curpacket != NULL) {
                while (curpacket->next != NULL) {
        curpacket = *packets;
        if (curpacket != NULL) {
                while (curpacket->next != NULL) {


@@ -189,15 +187,14 @@ int read_openpgp_stream(int (*getchar_func)(void *ctx, size_t count,
                }
        }
 
                }
        }
 

-       while (!rc && !getchar_func(ctx, 1, &curchar) &&
-                       (maxnum == 0 || keys < maxnum)) {
+       while (!rc && (maxnum == 0 || keys < maxnum) &&
+                       !getchar_func(ctx, 1, &curchar)) {

                if (!inpacket && (curchar & 0x80)) {
                        /*
                         * New packet. Record the fact we're in a packet and
                         * allocate memory for it.
                         */
                        inpacket = true;
                if (!inpacket && (curchar & 0x80)) {
                        /*
                         * New packet. Record the fact we're in a packet and
                         * allocate memory for it.
                         */
                        inpacket = true;

-                       count = 0;

                        if (curpacket != NULL) {
                                curpacket->next = malloc(sizeof (*curpacket));
                                curpacket = curpacket->next;
                        if (curpacket != NULL) {
                                curpacket->next = malloc(sizeof (*curpacket));
                                curpacket = curpacket->next;


@@ -241,13 +238,13 @@ int read_openpgp_stream(int (*getchar_func)(void *ctx, size_t count,
                                        curpacket->packet->length = curchar;
                                        curpacket->packet->length <<= 8;
                                        rc = getchar_func(ctx, 1, &curchar);
                                        curpacket->packet->length = curchar;
                                        curpacket->packet->length <<= 8;
                                        rc = getchar_func(ctx, 1, &curchar);

-                                       curpacket->packet->length = curchar;
+                                       curpacket->packet->length += curchar;

                                        curpacket->packet->length <<= 8;
                                        rc = getchar_func(ctx, 1, &curchar);
                                        curpacket->packet->length <<= 8;
                                        rc = getchar_func(ctx, 1, &curchar);

-                                       curpacket->packet->length = curchar;
+                                       curpacket->packet->length += curchar;

                                        curpacket->packet->length <<= 8;
                                        rc = getchar_func(ctx, 1, &curchar);
                                        curpacket->packet->length <<= 8;
                                        rc = getchar_func(ctx, 1, &curchar);

-                                       curpacket->packet->length = curchar;
+                                       curpacket->packet->length += curchar;

                                }
                        } else {
                                curpacket->packet->tag = (curchar & 0x3C) >> 2;
                                }
                        } else {
                                curpacket->packet->tag = (curchar & 0x3C) >> 2;


@@ -308,6 +305,7 @@ int read_openpgp_stream(int (*getchar_func)(void *ctx, size_t count,
                } else {
                        logthing(LOGTHING_ERROR, "Unexpected character: 0x%X",
                                curchar);
                } else {
                        logthing(LOGTHING_ERROR, "Unexpected character: 0x%X",
                                curchar);

+                       rc = 1;

                }
        }
 
                }
        }
 


@@ -324,7 +322,7 @@ int read_openpgp_stream(int (*getchar_func)(void *ctx, size_t count,
  *     packet stream from a linked list of packets.
  */
 int write_openpgp_stream(int (*putchar_func)(void *ctx, size_t count,
  *     packet stream from a linked list of packets.
  */
 int write_openpgp_stream(int (*putchar_func)(void *ctx, size_t count,

-                                               unsigned char *c),
+                                               void *c),

                                void *ctx,
                                struct openpgp_packet_list *packets)
 {
                                void *ctx,
                                struct openpgp_packet_list *packets)
 {


@@ -349,6 +347,28 @@ int write_openpgp_stream(int (*putchar_func)(void *ctx, size_t count,
                                curchar = (packets->packet->length - 192) &
                                         0xFF;
                                putchar_func(ctx, 1, &curchar);
                                curchar = (packets->packet->length - 192) &
                                         0xFF;
                                putchar_func(ctx, 1, &curchar);

+                       } else if (packets->packet->length > 8382 &&
+                               packets->packet->length < 0xFFFFFFFF) {
+                               logthing(LOGTHING_DEBUG,
+                                       "Writing 5 byte length");
+                               curchar = 255;
+                               putchar_func(ctx, 1, &curchar);
+                               
+                               curchar = (packets->packet->length >> 24);
+                               curchar &= 0xFF;
+                               putchar_func(ctx, 1, &curchar);
+                               
+                               curchar = (packets->packet->length >> 16);
+                               curchar &= 0xFF;
+                               putchar_func(ctx, 1, &curchar);
+                               
+                               curchar = (packets->packet->length >> 8);
+                               curchar &= 0xFF;
+                               putchar_func(ctx, 1, &curchar);
+                               
+                               curchar = packets->packet->length;
+                               curchar &= 0xFF;
+                               putchar_func(ctx, 1, &curchar);

                        } else {
                                logthing(LOGTHING_ERROR,
                                        "Unsupported new format length.");
                        } else {
                                logthing(LOGTHING_ERROR,
                                        "Unsupported new format length.");


@@ -412,9 +432,9 @@ int flatten_publickey(struct openpgp_publickey *key,
                }
 
                /*
                }
 
                /*

-                * Now do any revocation signatures on the main key.
+                * Now do any signatures on the main key.

                 */
                 */

-               for (tmplist = key->revocations; tmplist != NULL;
+               for (tmplist = key->sigs; tmplist != NULL;

                                tmplist = tmplist->next) {
                        ADD_PACKET_TO_LIST((*list_end),
                                        packet_dup(tmplist->packet));
                                tmplist = tmplist->next) {
                        ADD_PACKET_TO_LIST((*list_end),
                                        packet_dup(tmplist->packet));