curl-library
Re: Automated telnet problems
Date: Thu, 12 Mar 2009 09:46:28 +0100
Hello,
Here you have the diff -u starting from the latest version of telnet.c in
the cvs repository:
$ diff -u /d/telnet.c telnet.c
--- /d/telnet.c Thu Mar 12 08:36:08 2009
+++ telnet.c    Thu Mar 12 09:21:28 2009
@@ -108,7 +108,7 @@
 #endif
 static
-void telrcv(struct connectdata *,
+CURLcode telrcv(struct connectdata *,
             const unsigned char *inbuf, /* Data received from socket */
             ssize_t count);             /* Number of bytes received */
@@ -952,7 +952,7 @@
 }
 static
-void telrcv(struct connectdata *conn,
+CURLcode telrcv(struct connectdata *conn,
             const unsigned char *inbuf, /* Data received from socket */
             ssize_t count)              /* Number of bytes received */
 {
@@ -961,10 +961,14 @@
   int startwrite=-1;
   struct SessionHandle *data = conn->data;
   struct TELNET *tn = (struct TELNET *)data->state.proto.telnet;
+  CURLcode result;
 #define startskipping() \
-    if(startwrite >= 0) \
-       Curl_client_write(conn, CLIENTWRITE_BODY, (char
*)&inbuf[startwrite], in-startwrite); \
+    if(startwrite >= 0) { \
+       result = Curl_client_write(conn, CLIENTWRITE_BODY, (char
*)&inbuf[startwrite], in-startwrite); \
+       if (result != CURLE_OK) \
+          return result; \
+    } \
     startwrite = -1
 #define writebyte() \
@@ -1119,6 +1123,8 @@
     ++in;
   }
   bufferflush();
+
+  return CURLE_OK;
 }
 /* Escape and send a telnet data block */
@@ -1389,7 +1395,11 @@
           break;
         }
-        telrcv(conn, (unsigned char *)buf, nread);
+        code = telrcv(conn, (unsigned char *)buf, nread);
+        if(code) {
+          keepon = FALSE;
+          break;
+        }
         fflush(stdout);
@@ -1475,7 +1485,11 @@
           break;
         }
-        telrcv(conn, (unsigned char *)buf, nread);
+        code = telrcv(conn, (unsigned char *)buf, nread);
+        if(code) {
+          keepon = FALSE;
+          break;
+        }
         /* Negotiate if the peer has started negotiating,
            otherwise don't. We don't want to speak telnet with
Regards
On Wed, Mar 11, 2009 at 11:12 PM, Daniel Stenberg <daniel_at_haxx.se> wrote:
> On Wed, 11 Mar 2009, Pierre Brico wrote:
>
>  Here is a patch for the second issue (libcurl didn't report error when
>> write_callback returns unexpected value):
>>
>
> Great, thanks! Can you please use diff -u and repost it?
>
> (And please don't top-post and full-quote on this list.)
>
> --
>
>  / daniel.haxx.se
>
Received on 2009-03-12