krb5 commit: Fix sentinel position in sample u2u server

Greg Hudson ghudson at MIT.EDU
Thu Jun 13 11:13:08 EDT 2013


https://github.com/krb5/krb5/commit/0903006d9aef36b58d6ee7dfa5b10771add92279
commit 0903006d9aef36b58d6ee7dfa5b10771add92279
Author: Greg Hudson <ghudson at mit.edu>
Date:   Thu Jun 13 11:06:23 2013 -0400

    Fix sentinel position in sample u2u server
    
    Print "Server started" after calling listen(), or there wil be a race
    where the client tries to connect before there is a listen queue and
    gets ECONNREFUSED.

 src/appl/user_user/server.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/appl/user_user/server.c b/src/appl/user_user/server.c
index 3c844d8..dbff68e 100644
--- a/src/appl/user_user/server.c
+++ b/src/appl/user_user/server.c
@@ -95,14 +95,14 @@ int main(argc, argv)
             com_err("uu-server", errno, "binding socket");
             exit(3);
         }
-
-        printf("Server started\n");
-        fflush(stdout);
-
         if (listen(sock, 1) == -1) {
             com_err("uu-server", errno, "listening");
             exit(3);
         }
+
+        printf("Server started\n");
+        fflush(stdout);
+
         if ((acc = accept(sock, (struct sockaddr *)&f_inaddr, &namelen)) == -1) {
             com_err("uu-server", errno, "accepting");
             exit(3);


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