X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/41ff465810a9da24b00513e92f5aac8f1e0d5ae0..7bedb13c064e90654b709137a01c6feaee7a3abe:/psftp.c

diff --git a/psftp.c b/psftp.c
index 6439de3f..6b7ff1d1 100644
--- a/psftp.c
+++ b/psftp.c
@@ -1362,6 +1362,25 @@ void askcipher(char *ciphername, int cs)
 }
 
 /*
+ * Warn about the obsolescent key file format.
+ */
+void old_keyfile_warning(void)
+{
+    static const char message[] =
+	"You are loading an SSH 2 private key which has an\n"
+	"old version of the file format. This means your key\n"
+	"file is not fully tamperproof. Future versions of\n"
+	"PuTTY may stop supporting this private key format,\n"
+	"so we recommend you convert your key to the new\n"
+	"format.\n"
+	"\n"
+	"Once the key is loaded into PuTTYgen, you can perform\n"
+	"this conversion simply by saving it again.\n";
+
+    fputs(message, stderr);
+}
+
+/*
  *  Print an error message and perform a fatal exit.
  */
 void fatalbox(char *fmt, ...)