[SCM] Samba Shared Repository - branch master updated - tevent-0-9-8-592-g83edf3e

[Stefan Metzmacher]

The branch, master has been updated
       via  83edf3e43e86781872a07d8eb53084f59ad7384c (commit)
       via  f0d6e61977b68da48524e861646e2ad4bb91a214 (commit)
      from  00e378f17c39c52689601bc622b9cd78a0cdce12 (commit)

http://gitweb.samba.org/?p=samba.git;a=shortlog;h=master


- Log -----------------------------------------------------------------
commit 83edf3e43e86781872a07d8eb53084f59ad7384c
Author: Stefan Metzmacher <me...@samba.org>
Date:   Mon Sep 21 02:42:35 2009 +0200

    s3:winbindd: avoid writing to a closed connection and generate SIGPIPE
    
    metze

commit f0d6e61977b68da48524e861646e2ad4bb91a214
Author: Stefan Metzmacher <me...@samba.org>
Date:   Mon Sep 21 02:36:06 2009 +0200

    async_sock: return -1/EPIPE if we're getting an end of file on read.
    
    This makes the error handling in the callers easier.
    
    metze

-----------------------------------------------------------------------

Summary of changes:
 lib/async_req/async_sock.c  |    4 ++++
 source3/winbindd/winbindd.c |   25 +++++++++++++------------
 2 files changed, 17 insertions(+), 12 deletions(-)


Changeset truncated at 500 lines:

diff --git a/lib/async_req/async_sock.c b/lib/async_req/async_sock.c
index f5a0dfd..18adb42 100644
--- a/lib/async_req/async_sock.c
+++ b/lib/async_req/async_sock.c
@@ -160,6 +160,10 @@ static void async_recv_handler(struct tevent_context *ev,
                /* retry */
                return;
        }
+       if (state->received == 0) {
+               tevent_req_error(req, EPIPE);
+               return;
+       }
        if (state->received == -1) {
                tevent_req_error(req, errno);
                return;
diff --git a/source3/winbindd/winbindd.c b/source3/winbindd/winbindd.c
index 9d4676f..f0160fc 100644
--- a/source3/winbindd/winbindd.c
+++ b/source3/winbindd/winbindd.c
@@ -692,6 +692,8 @@ static void winbind_client_response_written(struct 
tevent_req *req)
        ret = wb_resp_write_recv(req, &err);
        TALLOC_FREE(req);
        if (ret == -1) {
+               close(state->sock);
+               state->sock = -1;
                DEBUG(2, ("Could not write response to client: %s\n",
                          strerror(err)));
                remove_client(state);
@@ -792,6 +794,8 @@ static void winbind_client_request_read(struct tevent_req 
*req)
        ret = wb_req_read_recv(req, state, &state->request, &err);
        TALLOC_FREE(req);
        if (ret == -1) {
+               close(state->sock);
+               state->sock = -1;
                DEBUG(2, ("Could not read client request: %s\n",
                          strerror(err)));
                remove_client(state);
@@ -813,22 +817,19 @@ static void remove_client(struct winbindd_cli_state 
*state)
                return;
        }
 
-       /* tell client, we are closing ... */
-       nwritten = write(state->sock, &c, sizeof(c));
-       if (nwritten == -1) {
-               /* 
-                * ignore EPIPE error here, because the other end might
-                * have already closed the socket.
-                */
-               if (errno != EPIPE) {
+       if (state->sock != -1) {
+               /* tell client, we are closing ... */
+               nwritten = write(state->sock, &c, sizeof(c));
+               if (nwritten == -1) {
                        DEBUG(2, ("final write to client failed: %s\n",
-                               strerror(errno)));
+                               strerror(errno)));
                }
-       }
 
-       /* Close socket */
+               /* Close socket */
 
-       close(state->sock);
+               close(state->sock);
+               state->sock = -1;
+       }
 
        /* Free any getent state */
 


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