1 files changed, 66 insertions, 0 deletions
diff --git a/argon2/make_settings.c b/argon2/make_settings.c
new file mode 100644
index 0000000..33c13a4
--- /dev/null
+++ b/argon2/make_settings.c
@@ -0,0 +1,66 @@
+/* See LICENSE file for copyright and license details. */
+#include "../common.h"
+#ifndef TEST
+
+
+static ssize_t
+make_settings(char *out_buffer, size_t size, const char *algorithm, size_t memcost, uintmax_t timecost,
+              int gensalt, ssize_t (*rng)(void *out, size_t n, void *user), void *user)
+{
+	/* Use default RNG if NULL is specified */
+	if (!rng)
+		rng = &librecrypt_rng_;
+
+	/* Adjust `memcost` for algorithm */
+	if (!memcost) {
+		/* Use default memcost if 0 was specified */
+		memcost = (size_t)4096u; /* 4 MiB */
+	} else {
+		/* Function takes bytes as memcost, algorithm takes kilobytes */
+		int memcost_round_up = memcost % 1024u >= 512u;
+		memcost >>= 10;
+		memcost += memcost_round_up ? 1u : 0u;
+		memcost = memcost ? memcost : 1u;
+	}
+
+	/* TODO implement */
+	(void) out_buffer;
+	(void) size;
+	(void) algorithm;
+	(void) memcost;
+	(void) timecost;
+	(void) gensalt;
+	(void) rng;
+	(void) user;
+	return 0;
+}
+
+
+#define DECLARE_MAKE_SETTINGS(ALGO)\
+	ssize_t\
+	librecrypt__##ALGO##__make_settings(char *out_buffer, size_t size, const char *algorithm,\
+	                                    size_t memcost, uintmax_t timecost, int gensalt,\
+	                                    ssize_t (*rng)(void *out, size_t n, void *user), void *user)\
+	{\
+		algorithm = algorithm ? algorithm : "$"#ALGO"$";\
+		return make_settings(out_buffer, size, algorithm, memcost, timecost, gensalt, rng, user);\
+	}
+
+IF__argon2i__SUPPORTED(DECLARE_MAKE_SETTINGS(argon2i))
+IF__argon2d__SUPPORTED(DECLARE_MAKE_SETTINGS(argon2d))
+IF__argon2id__SUPPORTED(DECLARE_MAKE_SETTINGS(argon2id))
+IF__argon2ds__SUPPORTED(DECLARE_MAKE_SETTINGS(argon2ds))
+
+
+#else
+
+
+CONST int
+main(void)
+{
+	return 0;
+}
+
+
+#endif
+/* TODO test */