X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/f1e930585a5eb8ef184f5a0ad1e85759e01e60d0..a241edc87bed49d6bc5dc3c4c99786a921ae7c8a:/parsekey.c diff --git a/parsekey.c b/parsekey.c index 4482d8b..517b029 100644 --- a/parsekey.c +++ b/parsekey.c @@ -1,14 +1,22 @@ /* * parsekey.c - Routines to parse an OpenPGP key. * - * Jonathan McDowell + * Copyright 2002-2004,2007-2008,2011 Jonathan McDowell * - * Copyright 2002 Project Purple + * This program is free software: you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; version 2 of the License. * - * $Id: parsekey.c,v 1.19 2004/05/27 18:42:22 noodles Exp $ + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 51 + * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ -#include #include #include #include @@ -19,6 +27,7 @@ #include "ll.h" #include "log.h" #include "mem.h" +#include "openpgp.h" #include "parsekey.h" /** @@ -48,13 +57,12 @@ int parse_keys(struct openpgp_packet_list *packets, while (packets != NULL) { switch (packets->packet->tag) { - case 2: + case OPENPGP_PACKET_SIGNATURE: /* * 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, @@ -65,11 +73,30 @@ int parse_keys(struct openpgp_packet_list *packets, packet_dup(packets->packet)); } else { ADD_PACKET_TO_LIST_END(curkey, - revocation, + sig, 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] == + OPENPGP_SIGTYPE_KEY_REV) { + /* + * Type 3 key, 0x20 == revocation + */ + curkey->revoked = true; + } else if (packets->packet->data[0] == 4 && + packets->packet->data[1] == + OPENPGP_SIGTYPE_KEY_REV) { + /* + * Type 4 key, 0x20 == revocation + */ + curkey->revoked = true; + } } break; - case 6: + case OPENPGP_PACKET_PUBLICKEY: /* * It's a public key packet, so start a new key in our * list. @@ -85,27 +112,27 @@ int parse_keys(struct openpgp_packet_list *packets, curkey->publickey = packet_dup(packets->packet); count++; break; - case 13: - case 17: + case OPENPGP_PACKET_UID: + case OPENPGP_PACKET_UAT: /* * 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)); break; - case 14: + case OPENPGP_PACKET_PUBLICSUBKEY: /* * It's a subkey packet. */ - assert(curkey != NULL); + log_assert(curkey != NULL); ADD_PACKET_TO_LIST_END(curkey, subkey, packet_dup(packets->packet)); break; - case 12: + case OPENPGP_PACKET_TRUST: case 61: /* * One of: @@ -135,7 +162,7 @@ int parse_keys(struct openpgp_packet_list *packets, */ int debug_packet(struct openpgp_packet *packet) { - printf("\tNew format: %d, Tag: %u, Length: %d\n", + printf("\tNew format: %d, Tag: %u, Length: %zd\n", packet->newformat, packet->tag, packet->length); @@ -155,7 +182,7 @@ 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, - unsigned char *c), + void *c), void *ctx, struct openpgp_packet_list **packets, int maxnum) @@ -166,7 +193,7 @@ int read_openpgp_stream(int (*getchar_func)(void *ctx, size_t count, int keys = 0; bool inpacket = false; - assert(packets != NULL); + log_assert(packets != NULL); curpacket = *packets; if (curpacket != NULL) { while (curpacket->next != NULL) { @@ -271,7 +298,8 @@ int read_openpgp_stream(int (*getchar_func)(void *ctx, size_t count, } if (rc == 0) { - if (curpacket->packet->tag == 6) { + if (curpacket->packet->tag == + OPENPGP_PACKET_PUBLICKEY) { keys++; } curpacket->packet->data = @@ -309,7 +337,7 @@ 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, - unsigned char *c), + void *c), void *ctx, struct openpgp_packet_list *packets) { @@ -334,6 +362,28 @@ int write_openpgp_stream(int (*putchar_func)(void *ctx, size_t count, 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."); @@ -397,9 +447,9 @@ 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));