First commit1.0

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

1 files changed, 19 insertions, 0 deletions

diff --git a/libar2_type_to_string.c b/libar2_type_to_string.c
new file mode 100644
index 0000000..3092101
--- /dev/null
+++ b/libar2_type_to_string.c
@@ -0,0 +1,19 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+const char *
+libar2_type_to_string(enum libar2_argon2_type type, enum libar2_casing casing)
+{
+	static const char *strs[3][5] = {
+		{"argon2d", "argon2i", "argon2id", NULL, "argon2ds"},
+		{"Argon2d", "Argon2i", "Argon2id", NULL, "Argon2ds"},
+		{"ARGON2D", "ARGON2I", "ARGON2ID", NULL, "ARGON2DS"}
+	};
+
+	if (type < 0 || casing < 0 || type >= ELEMSOF(*strs) || casing >= ELEMSOF(strs) || !strs[casing][type]) {
+		errno = EINVAL;
+		return NULL;
+	}
+	return strs[casing][type];
+}