1 files changed, 36 insertions, 0 deletions

diff --git a/utils/bencoding.c b/utils/bencoding.c
new file mode 100644
index 0000000..a60e1b3
--- /dev/null
+++ b/utils/bencoding.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <error.h>
+#include <signal.h>
+#include <cjson/cJSON.h>
+#include <bencoding.c>
+#define S0(x) (x ? x : "")
+int main (int argc, char ** argv) {
+	if (argc != 1+1)
+		error_at_line(1, 0, __FILE__, __LINE__, "%s encode < json || %s decode < bencoding", S0(argv[0]), S0(argv[0]));
+	int size = 2048;
+	int len = 0;
+	char * in = malloc(size);
+	while (!feof(stdin) && !ferror(stdin)) {
+		if (!in)
+			error_at_line(2, 0, __FILE__, __LINE__, "heap alloc failed");
+		len += fread(in, 1, size-len-1, stdin);
+		if ((size - len) < 1024)
+			in = realloc(in, size *= 2);
+	}
+	if (argv[1][0] == 'e')
+		error_at_line(3, 0, __FILE__, __LINE__, "N/I");
+	struct bencoding * bencoding = bdecode(in, size, terminate);
+	len = b2json_length(bencoding);
+	char out[len+1];
+	char * end = b2json(out, bencoding);
+	*end = '\0';
+	puts(out);
+	if (end - out != len)
+		error_at_line(4, 0, __FILE__, __LINE__, "b2json wrote %ld instead of %d bytes.", end-out, len);
+	fprintf(stderr, "len: %d\n", len);
+	free_bencoding(bencoding);
+	free(in);
+	return 0;
+}