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77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
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This file is part of Pretty Curved Privacy (pcp1).
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Copyright (C) 2013-2014 T.v.Dein.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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You can contact me by mail: <tom AT vondein DOT org>.
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*/
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#include "keysig.h"
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pcp_keysig_t * keysig2be(pcp_keysig_t *s) {
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#ifdef __CPU_IS_BIG_ENDIAN
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return s;
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#else
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uint32_t size = s->size;
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unsigned char* p = (unsigned char*)&size;
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if(p[0] != 0) {
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s->size = htobe32(s->size);
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}
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return s;
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#endif
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}
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pcp_keysig_t *keysig2native(pcp_keysig_t *s) {
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#ifdef __CPU_IS_BIG_ENDIAN
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return s;
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#else
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s->size = be32toh(s->size);
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return s;
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#endif
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}
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Buffer *pcp_keysig2blob(pcp_keysig_t *s) {
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Buffer *b = buffer_new(256, "keysig2blob");
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buffer_add8(b, s->type);
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buffer_add32be(b, s->size);
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buffer_add(b, s->belongs, 17);
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buffer_add(b, s->checksum, 32);
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buffer_add(b, s->blob, s->size);
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return b;
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}
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pcp_keysig_t *pcp_keysig_new(Buffer *blob) {
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pcp_keysig_t *sk = ucmalloc(sizeof(pcp_keysig_t));
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uint8_t type = buffer_get8(blob);
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uint32_t size = buffer_get32na(blob);
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byte *checksum = ucmalloc(32);
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buffer_get_chunk(blob, checksum, 32);
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sk->blob = ucmalloc(size);
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buffer_get_chunk(blob, sk->blob, size);
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sk->size = size;
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sk->type = type;
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memcpy(sk->checksum, checksum, 32);
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ucfree(checksum, 32);
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return sk;
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}
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