From 08a1c588c36a31d5c793b1fa3ed42d02c6e6d2f7 Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Mon, 15 Sep 2025 18:58:31 +0200
Subject: [PATCH 1/3] Some tests

---
 test.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 test.c

diff --git a/test.c b/test.c
new file mode 100644
index 0000000..bf69dbc
--- /dev/null
+++ b/test.c
@@ -0,0 +1,31 @@
+#include "hash/crc32.h"
+#include "hash/djb2.h"
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void) {
+    assert(crc32("123456789", 9) == 0xCBF43926);
+    assert(crc32("", 0) == 0x00000000);
+    assert(crc32("a", 1) == 0xE8B7BE43);
+    assert(crc32("A", 1) == 0xD3D99E8B);
+    assert(crc32("hello", 5) == 0x3610A686);
+    assert(crc32("The quick brown fox jumps over the lazy dog", 43) == 0x414FA339);
+    assert(crc32("The quick brown fox jumps over the lazy dog.", 44) == 0x519025E9);
+
+    /* Keep in mind the update api requires initialization and finalization */
+    uint32_t crc = crc32_init();
+    crc = crc32_update_raw(crc, "a", 1);
+    crc = crc32_finalize(crc);
+
+    assert(crc == crc32("a", 1));
+    assert(crc == 0xE8B7BE43);
+
+    assert(djb2("Hello") == 0x000000310D4F2079);
+    assert(djb2("a") == 0x000000000002B606);
+    assert(djb2("A") == 0x000000000002B5E6);
+    assert(djb2("123456789") == 0x0377821035CDBB82);
+
+    printf("All good!\n");
+    exit(EXIT_SUCCESS);
+}

From 41cb395b0db40f00c4ead2d597824c4ddf2ca0d5 Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Mon, 15 Sep 2025 18:58:50 +0200
Subject: [PATCH 2/3] Test target

---
 Makefile | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 1fd1cd6..2430818 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,12 @@ PREFIX ?= /usr/local
 INCLUDEDIR = $(PREFIX)/include
 LIBDIR = $(PREFIX)/lib
 
-all: $(STATIC_LIB) $(SHARED_LIB)
+TEST_SRC = test.c
+TEST_BIN = test.elf
+
+all: $(STATIC_LIB) $(SHARED_LIB) $(TEST_BIN)
+test: $(TEST_BIN)
+	./$<
 
 %.o: %.c
 	$(CC) $(CFLAGS) -c $< -o $@
@@ -24,6 +29,9 @@ $(STATIC_LIB): $(OBJS)
 $(SHARED_LIB): $(OBJS)
 	$(CC) -shared -o $@ $^
 
+$(TEST_BIN): $(TEST_SRC) $(STATIC_LIB)
+	$(CC) -Wall -Ihash -o $@ $(TEST_SRC) $(STATIC_LIB)
+
 install: $(STATIC_LIB) $(SHARED_LIB)
 	mkdir -p $(DESTDIR)$(INCLUDEDIR)/hash
 	cp -r hash/*.h $(DESTDIR)$(INCLUDEDIR)/hash/
@@ -37,6 +45,6 @@ uninstall:
 	@echo "Uninstalled libraries from $(DESTDIR)$(LIBDIR) and headers from $(DESTDIR)$(INCLUDEDIR)/hash"
 
 clean:
-	rm -f $(OBJS) $(STATIC_LIB) $(SHARED_LIB)
+	rm -f $(OBJS) $(STATIC_LIB) $(SHARED_LIB) $(TEST_BIN)
 
-.PHONY: all clean install uninstall
+.PHONY: all clean install uninstall test

From aca110741895e6fe3522e6e57038f103946ceada Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Mon, 15 Sep 2025 18:59:15 +0200
Subject: [PATCH 3/3] Use install instead of cp, support for DESTDIR env
 variable

---
 Makefile | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 2430818..ea50f64 100644
--- a/Makefile
+++ b/Makefile
@@ -33,10 +33,11 @@ $(TEST_BIN): $(TEST_SRC) $(STATIC_LIB)
 	$(CC) -Wall -Ihash -o $@ $(TEST_SRC) $(STATIC_LIB)
 
 install: $(STATIC_LIB) $(SHARED_LIB)
-	mkdir -p $(DESTDIR)$(INCLUDEDIR)/hash
-	cp -r hash/*.h $(DESTDIR)$(INCLUDEDIR)/hash/
-	mkdir -p $(DESTDIR)$(LIBDIR)
-	cp $(STATIC_LIB) $(SHARED_LIB) $(DESTDIR)$(LIBDIR)/
+	install -d $(DESTDIR)$(INCLUDEDIR)/hash
+	install -m 644 hash/*.h $(DESTDIR)$(INCLUDEDIR)/hash/
+	install -d $(DESTDIR)$(LIBDIR)
+	install -m 644 $(STATIC_LIB) $(DESTDIR)$(LIBDIR)/
+	install -m 755 $(SHARED_LIB) $(DESTDIR)$(LIBDIR)/
 	@echo "Installed libraries to $(DESTDIR)$(LIBDIR) and headers to $(DESTDIR)$(INCLUDEDIR)/hash"
 
 uninstall: