From 2411c920d5be92105bc88ee7f3d9d13da590ec6e Mon Sep 17 00:00:00 2001
From: Awayume <dev@awayume.jp>
Date: Thu, 28 Mar 2024 14:14:32 +0900
Subject: [PATCH] add: Add crdreader

---
 Makefile        |  9 +++++++++
 src/crdreader.c | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 Makefile
 create mode 100644 src/crdreader.c

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..91d3de7
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,9 @@
+.PHONY: build
+
+CC		:= x86_64-w64-mingw32-gcc-win32
+CFLAGS	:= -static -Wall -Wextra
+TARGET	:= crdreader.exe
+SRCS	:= src/crdreader.c
+
+build:
+	$(CC) -o $(TARGET) $(SRCS)
diff --git a/src/crdreader.c b/src/crdreader.c
new file mode 100644
index 0000000..3b1b200
--- /dev/null
+++ b/src/crdreader.c
@@ -0,0 +1,40 @@
+// SPDX-FileCopyrightText: 2024 Awayume <dev@awayume.jp>
+// SPDX-License-Identifier: MIT
+
+#include <stdio.h>
+
+#include <windows.h>
+#include <wincred.h>
+
+
+int main() {
+    DWORD count;
+    PCREDENTIAL* credentials;
+
+    if (!CredEnumerate(NULL, 0, &count, &credentials)) {
+        char message[] = "[ERROR] Failed to enumerate credentials:";
+        switch (GetLastError()) {
+            case 1168:
+                printf("%s ERROR_NOT_FOUND (0x490)\n", message);
+            case 1312:
+                printf("%s ERROR_NO_SUCH_LOGON_SESSION (0x520)\n", message);
+            case 1004:
+                printf("%s ERROR_INVALID_FLAGS (0x3EC)\n", message);
+            defaut:
+                printf("%sUnknown error\n", message);
+        }
+        return 255;
+    }
+
+    if (count == 0) {
+        printf("No credentials found!\n");
+        return 0;
+    }
+
+    printf("Credentials (total %d):\n", count);
+    for (DWORD i = 0; i < count; i++) {
+        LPSTR key = credentials[i]->TargetName;
+        LPBYTE value = credentials[i]->CredentialBlob;
+        printf("  %s: %s\n", key, value);
+    }
+}