utils-std

commit: e7d5081d54838a38b45ce5931da6f1612c08cc95
parent 7b875dcbdae6e2d7f91c50f787195f88fef27e90
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Sat, 14 Sep 2024 05:15:15 +0200

test-lib/sha256: new

Diffstat:
M
Makefile
5
++++-
A
test-lib/sha256.c
71
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 75 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
@@ -30,7 +30,7 @@ selfcheck-cmds: $(EXE) $(TEST_CMDS)
 	LDSTATIC=$(LDSTATIC) ./check-cmds.sh
 
 .PHONY: selfcheck-libs
-TEST_LIBS = test-lib/mode test-lib/strtodur test-lib/symbolize_mode test-lib/truncation test-lib/sha1
+TEST_LIBS = test-lib/mode test-lib/strtodur test-lib/symbolize_mode test-lib/truncation test-lib/sha1 test-lib/sha256
 selfcheck-libs: $(TEST_LIBS)
 	LDSTATIC=$(LDSTATIC) ./check-libs.sh $(TEST_LIBS)
 
@@ -115,6 +115,9 @@ test-lib/truncation: test-lib/truncation.c lib/truncation.c Makefile
 test-lib/sha1: test-lib/sha1.c lib/sha1.c lib/sha1.h lib/bytes2hex.c lib/strconv.h Makefile
 	$(CC) -std=c99 $(CFLAGS) -o $@ test-lib/sha1.c lib/sha1.c lib/bytes2hex.c $(LDFLAGS) $(LDSTATIC)
 
+test-lib/sha256: test-lib/sha256.c lib/sha256.c lib/sha256.h lib/bytes2hex.c lib/strconv.h Makefile
+	$(CC) -std=c99 $(CFLAGS) -o $@ test-lib/sha256.c lib/sha256.c lib/bytes2hex.c $(LDFLAGS) $(LDSTATIC)
+
 
 cmd/df: cmd/df.c lib/humanize.c Makefile
 	$(RM) -f ${<:=.gcov} ${@:=.gcda} ${@:=.gcno}
diff --git a/test-lib/sha256.c b/test-lib/sha256.c
@@ -0,0 +1,71 @@
+// utils-std: Collection of commonly available Unix tools
+// SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
+// SPDX-License-Identifier: 0BSD
+
+#define _POSIX_C_SOURCE 200809L
+#include "../lib/sha256.h"
+
+#include "../lib/strconv.h"
+
+#include <assert.h>
+#include <stdio.h>  // printf
+#include <string.h> // memcmp
+
+int counter = 0;
+int err = 0;
+
+static void
+t_sha256(const char *name,
+         const void *data,
+         size_t datalen,
+         const char expected[SHA256_DIGEST_LENGTH * 2])
+{
+	int id = ++counter;
+
+	struct sha256 ctx;
+	sha256_init(&ctx);
+	sha256_update(&ctx, data, datalen);
+
+	uint8_t res[SHA256_DIGEST_LENGTH] = "";
+	sha256_sum(&ctx, res);
+
+	char got[SHA256_DIGEST_LENGTH * 2] = "";
+	bytes2hex(res, sizeof(res), got, sizeof(got));
+
+	if(memcmp(expected, got, SHA256_DIGEST_LENGTH * 2) == 0)
+	{
+		printf("ok %d - %s\n", id, name);
+		return;
+	}
+
+	err = 1;
+
+	fputs("# Expected: ", stdout);
+	fwrite(expected, SHA256_DIGEST_LENGTH * 2, 1, stdout);
+	fputs("\n", stdout);
+
+	fputs("# Got: ", stdout);
+	fwrite(got, SHA256_DIGEST_LENGTH * 2, 1, stdout);
+	fputs("\n", stdout);
+
+	printf("not ok %d - %s\n", id, name);
+}
+
+int
+main(void)
+{
+	int plan = 3;
+	printf("1..%d\n", plan);
+
+	t_sha256("empty", "", 0, "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855");
+
+	// https://web.archive.org/web/20130526224224/https://csrc.nist.gov/groups/STM/cavp/documents/shs/sha256-384-512.pdf
+	t_sha256("abc", "abc", 3, "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad");
+	t_sha256("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+	         "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+	         56,
+	         "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1");
+
+	assert(counter == plan);
+	return err;
+}