Engage!

1 files changed, 57 insertions, 0 deletions

diff --git a/tools/hexdump.c b/tools/hexdump.c
new file mode 100644
index 0000000..988424a
--- /dev/null
+++ b/tools/hexdump.c
@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char *argv[]) {
+	if (argc < 3) {
+		fprintf(stderr, "Usage: %s <input_file> <array_name>\n", argv[0]);
+		return 1;
+	}
+
+	const char *filename = argv[1];
+	const char *array_name = argv[2];
+
+	FILE *f = fopen(filename, "rb");
+	if (!f) {
+		perror("fopen");
+		return 1;
+	}
+
+	fseek(f, 0, SEEK_END);
+	long size = ftell(f);
+	rewind(f);
+
+	unsigned char *buffer = malloc(size);
+	if (!buffer) {
+		perror("malloc");
+		fclose(f);
+		return 1;
+	}
+
+	if (fread(buffer, 1, size, f) != (size_t)size) {
+		perror("fread");
+		free(buffer);
+		fclose(f);
+		return 1;
+	}
+
+	// Generate include guard
+	printf("#ifndef %s_H\n", array_name);
+	printf("#define %s_H\n\n", array_name);
+
+	printf("unsigned char %s[] = {\n", array_name);
+	for (long i = 0; i < size; i++) {
+		if (i % 12 == 0) printf("\t");
+		printf("0x%02x", buffer[i]);
+		if (i != size - 1) printf(", ");
+		if ((i + 1) % 12 == 0) printf("\n");
+	}
+	if (size % 12 != 0) printf("\n");
+	printf("};\n");
+	printf("unsigned int %s_len = %ld;\n", array_name, size);
+
+	printf("\n#endif // %s_H\n", array_name);
+
+	free(buffer);
+	fclose(f);
+	return 0;
+}