--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/bcc/main.c	Wed Nov 18 19:09:23 2020 +0100
@@ -0,0 +1,176 @@
+/*
+ * main.c -- binary to C/C++ arrays converter
+ *
+ * Copyright (c) 2020 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdnoreturn.h>
+#include <string.h>
+#include <unistd.h>
+
+static const char *charset = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_";
+static char findentchar = '\t';
+static int findent = 1;
+static bool fconst;
+static bool fnull;
+static bool fstatic;
+static bool funsigned;
+
+noreturn static void
+usage(void)
+{
+	fprintf(stderr, "usage: bcc [-0csu] [-I tab-indent] [-i space-indent] input variable\n");
+	exit(1);
+}
+
+noreturn static void
+die(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	fputs("abort: ", stderr);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	exit(1);
+}
+
+static char *
+mangle(char *variable)
+{
+	char *p;
+	size_t pos;
+
+	/* Remove extension. */
+	if ((p = strrchr(variable, '.')))
+		*p = '\0';
+
+	/* Remove disallowed characters. */
+	while ((pos = strspn(variable, charset)) != strlen(variable))
+		variable[pos] = '_';
+
+	return variable;
+}
+
+static void
+indent(void)
+{
+	for (int i = 0; i < findent; ++i)
+		putchar(findentchar);
+}
+
+static void
+put(int ch)
+{
+	if (funsigned)
+		printf("0x%02hhx", (unsigned char)ch);
+	else
+		printf("%hhd", (signed char)ch);
+}
+
+static void
+process(const char *input, const char *variable)
+{
+	FILE *fp;
+	int ch, col = 0;
+
+	if (strcmp(input, "-") == 0)
+		fp = stdin;
+	else if (!(fp = fopen(input, "rb")))
+		die("%s: %s\n", input, strerror(errno));
+
+	if (fstatic)
+		printf("static ");
+	if (fconst)
+		printf("const ");
+
+	printf(funsigned ? "unsigned " : "signed ");
+	printf("char %s[] = {\n", variable);
+
+	for (ch = fgetc(fp); ch != EOF; ) {
+		if (col == 0)
+			indent();
+
+		put(ch);
+
+		if ((ch = fgetc(fp)) != EOF || fnull)
+			printf(",%s", col < 3 ? " " : "");
+
+		if (++col == 4) {
+			col = 0;
+			putchar('\n');
+		}
+
+		/* Add final '\0' if required. */
+		if (ch == EOF && fnull) {
+			if (col++ == 0)
+				indent();
+
+			put(0);
+		}
+	}
+
+	if (col != 0)
+		printf("\n");
+
+	puts("};");
+	fclose(fp);
+}
+
+int
+main(int argc, char **argv)
+{
+	int ch;
+
+	while ((ch = getopt(argc, argv, "0cI:i:su")) != -1) {
+		switch (ch) {
+		case '0':
+			fnull = true;
+			break;
+		case 'c':
+			fconst = true;
+			break;
+		case 'I':
+			findentchar = '\t';
+			findent = atoi(optarg);
+			break;
+		case 'i':
+			findentchar = ' ';
+			findent = atoi(optarg);
+			break;
+		case 's':
+			fstatic = true;
+			break;
+		case 'u':
+			funsigned = true;
+			break;
+		default:
+			break;
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	if (argc < 2)
+		usage();
+
+	process(argv[0], mangle(argv[1]));
+}