lib: Move CRC implementations to a subfolder

Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>

1 files changed, 0 insertions, 64 deletions

diff --git a/src/lib/crc16.c b/src/lib/crc16.c
deleted file mode 100644
index 55af8647..00000000
--- a/src/lib/crc16.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2026
- *
- * 16-bit Cyclic Redundancy Check (CCITT-FALSE variant)
- *
- *    Dimitri Staessens <dimitri@ouroboros.rocks>
- *    Sander Vrijders   <sander@ouroboros.rocks>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * version 2.1 as published by the Free Software Foundation.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., http://www.fsf.org/about/contact/.
- */
-
-/*
- * CRC-16/CCITT-FALSE (reveng catalog, alias CRC-16/IBM-3740):
- *   poly   = 0x1021
- *   init   = 0xffff
- *   refin  = false
- *   refout = false
- *   xorout = 0x0000
- *   check  = crc16_ccitt_false("123456789") == 0x29b1
- */
-
-#include "config.h"
-
-#include <ouroboros/crc16.h>
-
-/* Bit-by-bit MSB-first CRC.  Header-check use case rarely exceeds a
- * few hundred bytes; a 256-entry uint16_t table costs 512 B of
- * .rodata and is easy to add later if profiling demands it.
- */
-void crc16_ccitt_false(uint16_t *   crc,
-                       const void * buf,
-                       size_t       len)
-{
-        const uint8_t * p;
-        uint16_t        c;
-        size_t          n;
-        int             i;
-
-        p = (const uint8_t *) buf;
-        c = *crc ^ 0xffff;
-
-        for (n = 0; n < len; n++) {
-                c ^= ((uint16_t) p[n]) << 8;
-                for (i = 0; i < 8; i++) {
-                        if (c & 0x8000)
-                                c = (uint16_t) ((c << 1) ^ 0x1021);
-                        else
-                                c = (uint16_t) (c << 1);
-                }
-        }
-
-        *crc = c;
-}