| /* SHA-1 thunks. |
| Copyright (C) 2019-2021 Free Software Foundation, Inc. |
| |
| This file is part of libctf. |
| |
| libctf 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; either version 3, or (at your option) any later |
| version. |
| |
| 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; see the file COPYING. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <ctf-impl.h> |
| #include <ctf-sha1.h> |
| |
| static const char hex[] = "0123456789abcdef"; |
| |
| char * |
| ctf_sha1_fini (ctf_sha1_t *sha1, char *buf) |
| { |
| size_t i; |
| |
| /* Alignment suitable for a uint32_t. */ |
| union |
| { |
| uint32_t align; |
| unsigned char digest[((CTF_SHA1_SIZE - 1) / 2) + 1]; |
| } align; |
| |
| sha1_finish_ctx (sha1, align.digest); |
| |
| if (!buf) |
| return NULL; |
| |
| buf[CTF_SHA1_SIZE - 1] = '\0'; |
| |
| for (i = 0; i < (CTF_SHA1_SIZE - 1) / 2; i++) |
| { |
| buf[2 * i] = hex[align.digest[i] >> 4]; |
| buf[2 * i + 1] = hex[align.digest[i] & 0xf]; |
| } |
| return buf; |
| } |