[git commit] libbb: add two more forgotten source files

[Denys Vlasenko]

commit: https://git.busybox.net/busybox/commit/?id=e2091c98425e2e1615db7dcad9556c928ea5123d
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
 libbb/hash_sha256_block.c | 19 +++++++++++++++++++
 libbb/pw_encrypt_yes.c    | 24 ++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/libbb/hash_sha256_block.c b/libbb/hash_sha256_block.c
new file mode 100644
index 000000000..3c4366321
--- /dev/null
+++ b/libbb/hash_sha256_block.c
@@ -0,0 +1,19 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 2025 Denys Vlasenko
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+//kbuild:lib-y += hash_sha256_block.o
+#include "libbb.h"
+
+void FAST_FUNC
+sha256_block(const void *in, size_t len, uint8_t hash[32])
+{
+	sha256_ctx_t ctx;
+	sha256_begin(&ctx);
+	sha256_hash(&ctx, in, len);
+	sha256_end(&ctx, hash);
+}
diff --git a/libbb/pw_encrypt_yes.c b/libbb/pw_encrypt_yes.c
new file mode 100644
index 000000000..50bd06418
--- /dev/null
+++ b/libbb/pw_encrypt_yes.c
@@ -0,0 +1,24 @@
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 2025 by Denys Vlasenko <vda.linux at googlemail.com>
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+#include "yescrypt/alg-yescrypt.h"
+
+static char *
+yes_crypt(const char *passwd, const char *salt_data)
+{
+	/* prefix, '$', hash, NUL */
+	char buf[YESCRYPT_PREFIX_LEN + 1 + YESCRYPT_HASH_LEN + 1];
+	char *retval;
+
+	retval = yescrypt_r(
+			(const uint8_t *)passwd, strlen(passwd),
+			(const uint8_t *)salt_data,
+			buf, sizeof(buf));
+	/* The returned value is either buf[], or NULL on error */
+
+	return xstrdup(retval);
+}