Add libar2simplified_crypt and fix threading

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

1 files changed, 43 insertions, 0 deletions

diff --git a/libar2simplified_crypt.c b/libar2simplified_crypt.c
new file mode 100644
index 0000000..7d255d4
--- /dev/null
+++ b/libar2simplified_crypt.c
@@ -0,0 +1,43 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+char *
+libar2simplified_crypt(char *msg, const char *paramstr, char *rv)
+{
+	struct libar2_argon2_parameters *params = NULL;
+	char *end, *ret = NULL, *hash = NULL;
+	size_t size;
+
+	params = libar2simplified_decode(paramstr, NULL, &end, NULL);
+	if (!params)
+		goto out;
+	if (*end) {
+		errno = EINVAL;
+		goto out;
+	}
+
+	if (!rv) {
+		size = libar2_hash_buf_size(params);
+		if (!size || !(hash = malloc(size))) {
+			errno = ENOMEM;
+			goto out;
+		}
+	}
+	if (libar2simplified_hash(rv ? rv : hash, msg, strlen(msg), params))
+		goto out;
+
+	ret = libar2simplified_encode(params, rv ? rv : hash);
+	if (rv) {
+		stpcpy(rv, ret);
+		free(ret);
+		ret = rv;
+	}
+
+out:
+	if (params)
+		libar2_erase(params->salt, params->saltlen);
+	free(params);
+	free(hash);
+	return ret;
+}