First commit

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 75 insertions, 0 deletions

diff --git a/anysum.c b/anysum.c
new file mode 100644
index 0000000..a478a7a
--- /dev/null
+++ b/anysum.c
@@ -0,0 +1,75 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#include <libsimple-arg.h>
+
+NUSAGE(2, "[file] ...");
+
+
+static int
+calculate_and_print(const char *file, struct barrier_group *group, struct global_data *global)
+{
+	size_t i;
+	if (calculate(file, group, global))
+		return -1;
+	for (i = 0; i < global->nalgorithms; i++)
+		writeall(STDOUT_FILENO, global->algorithms[i].result, global->algorithms[i].result_length, "<stdout>");
+	return 0;
+}
+
+
+static int
+calculate_each_and_print(char **files, struct algorithm *algorithms, size_t nalgorithms, enum format format)
+{
+	size_t wanted_nalgorithms = nalgorithms;
+	struct buffer buffer = {0};
+	int r, ret = 0;
+	struct barrier_group group;
+	struct global_data global;
+
+	global.format = format;
+	global.buffer = &buffer;
+	global.algorithms = algorithms;
+	global.nalgorithms = nalgorithms;
+
+	createbarriergroup(&group, nalgorithms, &global);
+
+	if (!*files) {
+		global.file = "-";
+		ret = calculate_and_print("-", &group, &global) ? 2 : 0;
+	}
+	while (*files) {
+		global.file = *files;
+		r = calculate_and_print(*files++, &group, &global) ? 2 : 0;
+		ret = MAX(r, ret);
+	}
+
+	if (nalgorithms != wanted_nalgorithms)
+		ret = 2;
+
+	killbarriergroup(&group, &global);
+
+	free(buffer.buf);
+	return ret;
+}
+
+
+int
+main(int argc, char *argv[])
+{
+	enum format format = LOWERCASE_HEX | WITH_ALGOSTR | WITH_FILENAME | WITH_LF;
+	struct algorithm algorithms[] = {{"sha1"}, {"sha2-512/224"}, {"sha1"}};
+	size_t i, nalgorithms = ELEMSOF(algorithms);
+	int ret;
+
+	libsimple_default_failure_exit = 2;
+
+	ARGBEGIN {
+	default:
+		usage();
+	} ARGEND;
+
+	ret = calculate_each_and_print(argv, algorithms, nalgorithms, format);
+	for (i = 0; i < nalgorithms; i++)
+		free(algorithms[i].result);
+	return ret;
+}