Misc

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

1 files changed, 125 insertions, 2 deletions

diff --git a/librecrypt_make_settings.c b/librecrypt_make_settings.c
index 96ec24a..3efca4c 100644
--- a/librecrypt_make_settings.c
+++ b/librecrypt_make_settings.c
@@ -14,7 +14,7 @@ librecrypt_make_settings(char *out_buffer, size_t size, const char *algorithm, s
 		/* Select best algorithm if `NULL` is specified */
 		algo = &librecrypt_algorithms_[0];
 		if (IS_END_OF_ALGORITHMS(algo))
-			goto enosys;
+			goto enosys; /* $covered$ (covered iff reachable: when algorithms are disabled) */
 	} else {
 		/* Verify single, unchained algorithm is specified if not `NULL`*/
 		if (strchr(algorithm, LIBRECRYPT_ALGORITHM_LINK_DELIMITER)) {
@@ -43,16 +43,139 @@ enosys:
 #else
 
 
+static unsigned char saltbyte = 0u;
+
+
+static ssize_t
+saltgen(void *out, size_t n, void *user)
+{
+	if (!n)
+		return 0;
+	*(unsigned char *)out = *(unsigned char *)user;
+	return 1;
+}
+
+
+static ssize_t
+saltfail(void *out, size_t n, void *user)
+{
+	(void) out;
+	(void) n;
+	(void) user;
+	errno = EDOM;
+	return -1;
+}
+
+
 int
 main(void)
 {
+	char buf[1024];
+	char buf2[sizeof(buf)];
+	int any_supported = 0;
+	int any_salted = 0;
+	ssize_t r;
+
 	SET_UP_ALARM();
 	INIT_RESOURCE_TEST();
 
+	errno = 0;
+	EXPECT(librecrypt_make_settings(NULL, 0, ">", 0u, 0u, 0, NULL, NULL) == -1);
+	EXPECT(errno == EINVAL);
+	errno = 0;
+	EXPECT(librecrypt_make_settings(NULL, 0, "$argon2id$>", 0u, 0u, 0, NULL, NULL) == -1);
+	EXPECT(errno == EINVAL);
+	errno = 0;
+	EXPECT(librecrypt_make_settings(NULL, 0, ">$argon2id$", 0u, 0u, 0, NULL, NULL) == -1);
+	EXPECT(errno == EINVAL);
+	errno = 0;
+	EXPECT(librecrypt_make_settings(NULL, 0, "$argon2id$>$argon2id$", 0u, 0u, 0, NULL, NULL) == -1);
+	EXPECT(errno == EINVAL);
+	errno = 0;
+	EXPECT(librecrypt_make_settings(NULL, 0, "$~no~such~algorithm~$", 0u, 0u, 0, NULL, NULL) == -1);
+	EXPECT(errno == ENOSYS);
+
+#if defined(SUPPORT_ARGON2I)
+	saltbyte = 0u;
+	r = librecrypt_make_settings(buf, sizeof(buf), "$argon2i$", 8192u << 10, (uintmax_t)81920u, 1, &saltgen, &saltbyte);
+	EXPECT(r > 0 && (size_t)r < sizeof(buf));
+	EXPECT(!buf[r] && (size_t)r == strlen(buf));
+	EXPECT(!strcmp(buf, "$argon2i$v=19$m=8192,t=10,p=1$AAAAAAAAAAAAAAAAAAAAAA$*32"));
+	any_supported = 1;
+	any_salted = 1;
+#endif
+
+#if defined(SUPPORT_ARGON2D)
+	saltbyte = 0u;
+	r = librecrypt_make_settings(buf, sizeof(buf), "$argon2d$", 8192u << 10, (uintmax_t)81920u, 1, &saltgen, &saltbyte);
+	EXPECT(r > 0 && (size_t)r < sizeof(buf));
+	EXPECT(!buf[r] && (size_t)r == strlen(buf));
+	EXPECT(!strcmp(buf, "$argon2d$v=19$m=8192,t=10,p=1$AAAAAAAAAAAAAAAAAAAAAA$*32"));
+	any_supported = 1;
+	any_salted = 1;
+#endif
+
+#if defined(SUPPORT_ARGON2ID)
+	saltbyte = 0u;
+	r = librecrypt_make_settings(buf, sizeof(buf), "$argon2id$", 8192u << 10, (uintmax_t)81920u, 1, &saltgen, &saltbyte);
+	EXPECT(r > 0 && (size_t)r < sizeof(buf));
+	EXPECT(!buf[r] && (size_t)r == strlen(buf));
+	EXPECT(!strcmp(buf, "$argon2id$v=19$m=8192,t=10,p=1$AAAAAAAAAAAAAAAAAAAAAA$*32"));
+	any_supported = 1;
+	any_salted = 1;
+#endif
+
+#if defined(SUPPORT_ARGON2DS)
+	saltbyte = 0u;
+	r = librecrypt_make_settings(buf, sizeof(buf), "$argon2ds$", 8192u << 10, (uintmax_t)81920u, 1, &saltgen, &saltbyte);
+	EXPECT(r > 0 && (size_t)r < sizeof(buf));
+	EXPECT(!buf[r] && (size_t)r == strlen(buf));
+	EXPECT(!strcmp(buf, "$argon2ds$v=19$m=8192,t=10,p=1$AAAAAAAAAAAAAAAAAAAAAA$*32"));
+	any_supported = 1;
+	any_salted = 1;
+#endif
+
+	if (any_supported) {
+		EXPECT(librecrypt_make_settings(NULL, 0, NULL, 0u, 0u, 0, NULL, NULL) > 0);
+		EXPECT(librecrypt_make_settings(buf, sizeof(buf), NULL, 0u, 0u, 0, NULL, NULL) > 0);
+
+		if (any_salted) {
+			errno = 0;
+			EXPECT(librecrypt_make_settings(buf, sizeof(buf), NULL, 0u, 0u, 1, &saltfail, NULL) == -1);
+			EXPECT(errno == EDOM);
+		} else {
+			EXPECT(librecrypt_make_settings(buf, sizeof(buf), NULL, 0u, 0u, 1, &saltfail, NULL) > 0);
+		}
+
+		r = librecrypt_make_settings(buf, sizeof(buf), NULL, 0u, 0u, 0, &saltfail, NULL);
+		EXPECT(r > 0 && (size_t)r < sizeof(buf));
+		EXPECT(!buf[r] && (size_t)r == strlen(buf));
+		EXPECT(librecrypt_make_settings(buf2, sizeof(buf2), NULL, 0u, 0u, 0, &saltfail, NULL) == r);
+		EXPECT(!buf2[r] && (size_t)r == strlen(buf2));
+		EXPECT(!strcmp(buf, buf2));
+
+		r = librecrypt_make_settings(buf, sizeof(buf), NULL, 0u, 0u, 0, NULL, NULL);
+		EXPECT(r > 0 && (size_t)r < sizeof(buf));
+		EXPECT(!buf[r] && (size_t)r == strlen(buf));
+		EXPECT(librecrypt_make_settings(buf2, sizeof(buf2), NULL, 0u, 0u, 0, NULL, NULL) == r);
+		EXPECT(!buf2[r] && (size_t)r == strlen(buf2));
+		EXPECT(!strcmp(buf, buf2));
+
+		r = librecrypt_make_settings(buf, sizeof(buf), NULL, 0u, 0u, 1, NULL, NULL);
+		EXPECT(r > 0 && (size_t)r < sizeof(buf));
+		EXPECT(!buf[r] && (size_t)r == strlen(buf));
+		EXPECT(librecrypt_make_settings(buf2, sizeof(buf2), NULL, 0u, 0u, 1, NULL, NULL) == r);
+		EXPECT(!buf2[r] && (size_t)r == strlen(buf2));
+		EXPECT(strcmp(buf, buf2));
+	} else {
+		errno = 0;
+		EXPECT(librecrypt_make_settings(NULL, 0, NULL, 0u, 0u, 0, NULL, NULL) == -1);
+		EXPECT(errno == ENOSYS);
+	}
+
 	STOP_RESOURCE_TEST();
 	return 0;
 }
 
 
 #endif
-/* TODO test */