Pedantic little patch to ensure blank usernames work vaguely as

[u/mdw/putty] / ssh.c

diff --git a/ssh.c b/ssh.c
index 4fb0822..94da21d 100644 (file)
--- a/ssh.c
+++ b/ssh.c
@@ -2168,8 +2168,7 @@ static int do_ssh1_login(unsigned char *in, int inlen, int ispkt)
                            break;
                          case 3:
                          case 4:
-                           random_save_seed();
-                           exit(0);
+                           cleanup_exit(0);
                            break;
                          default:
                            if (((c >= ' ' && c <= '~') ||
@@ -2474,8 +2473,7 @@ static int do_ssh1_login(unsigned char *in, int inlen, int ispkt)
                        break;
                      case 3:
                      case 4:
-                       random_save_seed();
-                       exit(0);
+                       cleanup_exit(0);
                        break;
                      default:
                        if (pos < sizeof(password)-1)
@@ -3875,6 +3873,7 @@ static void do_ssh2_authconn(unsigned char *in, int inlen, int ispkt)
     static int we_are_in;
     static int num_prompts, echo;
     static char username[100];
+    static int got_username;
     static char pwprompt[200];
     static char password[100];
     static void *publickey_blob;
@@ -3919,6 +3918,7 @@ static void do_ssh2_authconn(unsigned char *in, int inlen, int ispkt)
      *    retype it!
      */
     username[0] = '\0';
+    got_username = FALSE;
     do {
        static int pos;
        static char c;
@@ -3927,7 +3927,7 @@ static void do_ssh2_authconn(unsigned char *in, int inlen, int ispkt)
         * Get a username.
         */
        pos = 0;
-       if (*username && !cfg.change_username) {
+       if (got_username && !cfg.change_username) {
            /*
             * We got a username last time round this loop, and
             * with change_username turned off we don't try to get
@@ -3973,8 +3973,7 @@ static void do_ssh2_authconn(unsigned char *in, int inlen, int ispkt)
                            break;
                          case 3:
                          case 4:
-                           random_save_seed();
-                           exit(0);
+                           cleanup_exit(0);
                            break;
                          default:
                            if (((c >= ' ' && c <= '~') ||
@@ -3998,6 +3997,7 @@ static void do_ssh2_authconn(unsigned char *in, int inlen, int ispkt)
                c_write_str(stuff);
            }
        }
+       got_username = TRUE;
 
        /*
         * Send an authentication request using method "none": (a)
@@ -4452,8 +4452,7 @@ static void do_ssh2_authconn(unsigned char *in, int inlen, int ispkt)
                                break;
                              case 3:
                              case 4:
-                               random_save_seed();
-                               exit(0);
+                               cleanup_exit(0);
                                break;
                              default:
                                if (pos < sizeof(password)-1)