From 3cdfc5819b7cdfb4007ed5150f78b5ab697cf583 Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Thu, 1 Aug 2019 09:29:36 -0400
Subject: initial commit

---
 .gitignore |  2 ++
 Makefile   |  6 +++++
 array.c    | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 93 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 array.c

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bd54761
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+array
+*.o
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..4589eb4
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,6 @@
+.POSIX:
+
+array: array.c
+
+clean:
+	rm *.o array
diff --git a/array.c b/array.c
new file mode 100644
index 0000000..6ad54db
--- /dev/null
+++ b/array.c
@@ -0,0 +1,85 @@
+#define _POSIX_C_SOURCE 2
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#define CHARS_PER_LINE 8
+
+int make_array(const char *path, int include_size)
+{
+	FILE *f = stdin;
+
+	if (path && strcmp(path, "-") != 0) {
+		f = fopen(path, "rb");
+		if (f == NULL) {
+			perror(path);
+			return 1;
+		}
+	} else {
+		path = "stdin";
+	}
+
+	size_t plen = strlen(path);
+	char id[plen + 1];
+	for (size_t i = 0; i < plen; i++) {
+		id[i] = isalnum(path[i]) ? path[i] : '_';
+	}
+	id[plen] = '\0';
+
+	printf("unsigned char %s[] = {\n", id);
+
+	int c;
+	int i = 0;
+	while ((c = fgetc(f)) != EOF) {
+		if (i == 0) {
+			putchar('\t');
+		}
+		printf("0x%02hhx, ", c);
+		if (++i == CHARS_PER_LINE) {
+			putchar('\n');
+			i = 0;
+		}
+	}
+
+	if (i != 0) {
+		putchar('\n');
+	}
+
+	printf("};\n");
+
+	if (include_size) {
+		printf("size_t %s_size = sizeof(%s);\n", id, id);
+	}
+
+	if (f != stdin) {
+		fclose(f);
+	}
+
+	return 0;
+}
+
+
+int main(int argc, char *argv[])
+{
+	int include_size = 0;
+	int c;
+
+	while ((c = getopt(argc, argv, "s")) != -1) {
+		switch (c) {
+		case 's':
+			include_size = 1;
+			break;
+
+		default:
+			return 1;
+		}
+	}
+
+	int ret = 0;
+	do {
+		ret |= make_array(argv[optind++], include_size);
+	} while (optind < argc);
+
+	return ret;
+}
-- 
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