Unfortunatley the sha2 project does not have versioned releases so we use the latest commit. We have also manually added a frontend to sha-2 to allow us to invoke it from the command line, thanks bittrof for the help!master
fosslinux
2 years ago
parent
44bad278e0
commit
92cb05442e
@ -0,0 +1,22 @@
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This is free and unencumbered software released into the public domain.
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Anyone is free to copy, modify, publish, use, compile, sell, or distribute
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this software, either in source code form or as a compiled binary, for any
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purpose, commercial or non-commercial, and by any means.
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In jurisdictions that recognize copyright laws, the author or authors of this
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software dedicate any and all copyright interest in the software to the public
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domain. We make this dedication for the benefit of the public at large and
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to the detriment of our heirs and
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successors. We intend this dedication to be an overt act of relinquishment
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in perpetuity of all present and future rights to this software under copyright
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law.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH
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THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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For more information, please refer to <http://unlicense.org/>
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@ -0,0 +1 @@
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53384 /after/bin/sha256sum
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@ -0,0 +1,151 @@
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SPDX-FileCopyrightText: 2021 Bastian Bittorf <bb@npl.de>
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SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
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SPDX-License-Identifier: Unlicense
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This adds a main() function to this tool, giving a frontend so we can call
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it from the command line.
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--- sha-256.c 2019-08-04 22:20:53.000000000 +1000
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+++ sha-256.c 2021-02-15 17:21:27.478945543 +1100
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@@ -1,10 +1,16 @@
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#include <stdint.h>
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#include <string.h>
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-
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-#include "sha-256.h"
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+#include <stdio.h>
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#define CHUNK_SIZE 64
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#define TOTAL_LEN_LEN 8
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+#define MAX_FILE_SIZE 2*1024*1024
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+
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+void show_usage(void)
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+{
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+ printf("Usage: sha256sum <file>\n");
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+ printf(" sha256sum <file> -c <known_SHA256_hash>\n");
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+}
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/*
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* ABOUT bool: this file does not use bool in order to be as pre-C99 compatible as possible.
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@@ -217,3 +223,121 @@
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hash[j++] = (uint8_t) h[i];
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}
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}
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+
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+static void hash_to_string(char hash_string[66], uint8_t hash[32])
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+{
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+ for (size_t i = 0; i < 32; i++) {
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+ hash_string += sprintf(hash_string, "%02x", hash[i]);
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+ }
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+ hash_string[65] = '\0';
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+}
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+
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+static void hash_as_string(char filename[128], char hash_string[66])
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+{
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+ char buffer[MAX_FILE_SIZE];
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+
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+ FILE* fp = fopen(filename, "r");
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+ if (fp == NULL)
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+ {
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+ printf("Opening file %s failed!", filename);
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+ hash_string = NULL;
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+ return;
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+ }
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+
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+ size_t i;
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+ for (i = 0; i < MAX_FILE_SIZE; i++) {
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+ int c = fgetc(fp);
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+ if (c == EOF) {
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+ break;
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+ }
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+ buffer[i] = c;
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+ }
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+
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+ uint8_t hash[32];
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+
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+ calc_sha_256(hash, buffer, i);
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+ hash_to_string(hash_string, hash);
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+}
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+
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+int main(int argc, char **argv)
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+{
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+ char buffer[MAX_FILE_SIZE];
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+ size_t i;
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+ FILE *fp;
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+ FILE *csum_fp;
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+
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+ if (argc == 1) {
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+ show_usage();
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+ return 2;
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+ }
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+
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+ if ((strcmp(argv[1], "-c") == 0) || (strcmp(argv[1], "--check") == 0)) {
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+ /* Operate in check mode */
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+ int failed = 0;
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+
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+ /* Get and open checksum file */
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+ char *csum_filename = argv[2];
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+ csum_fp = fopen(csum_filename, "r");
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+ if (csum_fp == NULL) {
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+ printf("Opening file %s failed!", csum_filename);
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+ };
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+
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+ /* We break out of this loop at EOF */
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+ while (1) {
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+ /* Get the hash we need to check against */
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+ char hash_true[256];
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+ char filename[512];
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+ int c = fgetc(csum_fp);
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+ i = 0;
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+ while (c != ' ' && c != EOF) {
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+ hash_true[i] = c;
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+ c = fgetc(csum_fp);
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+ i++;
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+ }
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+ if(c == EOF) break;
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+ /* Skip the next space(s) */
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+ while (c == ' ') {
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+ c = fgetc(csum_fp);
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+ }
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+ if(c == EOF) break;
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+ /* Get the filename */
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+ i = 0;
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+ while (c != '\n' && c != EOF) {
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+ filename[i] = c;
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+ c = fgetc(csum_fp);
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+ i++;
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+ }
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+ filename[i] = '\0';
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+
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+ /* Break out @ EOF */
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+ if (c == EOF) break;
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+
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+ /* Get the hash */
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+ char hash_string[66];
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+ hash_as_string(filename, hash_string);
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+ if (hash_string == NULL) return 127;
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+
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+ /* Output results */
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+ printf("%s: ", filename);
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+ if (strcmp(hash_true, hash_string)) {
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+ printf("FAILED\n");
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+ failed = 1;
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+ } else {
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+ printf("OK\n");
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+ }
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+ }
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+
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+ if (failed) return 1;
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+ } else {
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+ /* All the arguments are files to generate checksums for */
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+
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+ for (i = 1; i < argc; i++) {
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+ char hash[66];
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+ hash_as_string(argv[i], hash);
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+ if (hash == NULL) return 127;
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+ printf("%s %s\n", hash, argv[i]);
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+ }
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+ }
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+
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+ return 0;
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+}
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@ -0,0 +1,30 @@
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#!/bin/sh
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# SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
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#
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# SPDX-License-Identifier: GPL-3.0-or-later
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set -ex
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cd build
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# Extract
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gunzip ../src/${pkg}.tar.gz
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tar xf ../src/${pkg}.tar
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cd sha-2-61555d45676473e77c11f8da97301e2d2b865871
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# Patch
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patch -Np0 -i ../../patches/frontend.patch
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# Compile
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tcc -c -o sha-256.o sha-256.c
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# Link
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tcc -static -o ${bindir}/sha256sum sha-256.o
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# No test avaliable
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cd ../..
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# Checksums
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fletcher16 checksums
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