Now, hopefully, the correct patch.
Passes libcurl tests, pipelining tested against lighttpd server.

Still, not sure, if mainstream neads it, but embedded people
may like it.
Inlined and attached:
--------------------------------------------------------------------------------------------------
diff -Naru curl-7.16.2/lib/sendf.c curl-7.16.2-mod/lib/sendf.c
--- curl-7.16.2/lib/sendf.c 2007-04-20 23:42:06.000000000 +0300
+++ curl-7.16.2-mod/lib/sendf.c 2007-04-20 14:13:37.000000000 +0300
@@ -496,7 +496,7 @@
     }
     /* If we come here, it means that there is no data to read from the buffer,
      * so we read from the socket */
- bytesfromsocket = MIN(sizerequested, sizeof(conn->master_buffer));
+ bytesfromsocket = MIN(sizerequested, BUFSIZE * sizeof (char));
     buffertofill = conn->master_buffer;
   }
   else {
diff -Naru curl-7.16.2/lib/transfer.c curl-7.16.2-mod/lib/transfer.c
--- curl-7.16.2/lib/transfer.c 2007-04-20 23:42:06.000000000 +0300
+++ curl-7.16.2-mod/lib/transfer.c 2007-04-20 14:19:28.000000000 +0300
@@ -289,8 +289,13 @@
     size_t show;

     show = MIN(conn->buf_len - conn->read_pos, sizeof(buf)-1);
- memcpy(buf, conn->master_buffer + conn->read_pos, show);
- buf[show] = '\0';
+ if (conn->master_buffer) {
+ memcpy(buf, conn->master_buffer + conn->read_pos, show);
+ buf[show] = '\0';
+ }
+ else {
+ buf[0] = '\0';
+ }

     DEBUGF(infof(conn->data,
                  "Buffer after stream rewind (read_pos = %d): [%s]",
diff -Naru curl-7.16.2/lib/url.c curl-7.16.2-mod/lib/url.c
--- curl-7.16.2/lib/url.c 2007-04-20 23:42:06.000000000 +0300
+++ curl-7.16.2-mod/lib/url.c 2007-04-20 23:39:33.000000000 +0300
@@ -1805,6 +1805,8 @@

   Curl_free_ssl_config(&conn->ssl_config);

+ Curl_safefree(conn->master_buffer);
+
   free(conn); /* free all the connection oriented data */
 }

@@ -2825,7 +2827,7 @@
      to not have to modify everything at once, we allocate a temporary
      connection data struct and fill in for comparison purposes. */

- conn = (struct connectdata *)calloc(sizeof(struct connectdata), 1);
+ conn = (struct connectdata *)calloc(1, sizeof(struct connectdata));
   if(!conn) {
     *in_connect = NULL; /* clear the pointer */
     return CURLE_OUT_OF_MEMORY;
@@ -2835,6 +2837,15 @@
      any failure */
   *in_connect = conn;

+ if (data->multi && Curl_multi_canPipeline(data->multi)) {
+ /* Allocate master_buffer to be used for pipelining */
+ if (!conn->master_buffer) {
+ if (!(conn->master_buffer = calloc(BUFSIZE, sizeof (char)))) {
+ return CURLE_OUT_OF_MEMORY;
+ }
+ }
+ }
+
   /* and we setup a few fields in case we end up actually using this struct */

   conn->data = data; /* Setup the association between this connection
diff -Naru curl-7.16.2/lib/urldata.h curl-7.16.2-mod/lib/urldata.h
--- curl-7.16.2/lib/urldata.h 2007-04-20 23:42:06.000000000 +0300
+++ curl-7.16.2-mod/lib/urldata.h 2007-04-20 13:46:56.000000000 +0300
@@ -868,7 +868,8 @@
   struct curl_llist *recv_pipe; /* List of handles waiting to read
                                    their responses on this pipeline */

- char master_buffer[BUFSIZE]; /* The master buffer for this connection. */
+ char* master_buffer; /* The master buffer allocated on-demand;
+ used for pipelining. */
   size_t read_pos; /* Current read position in the master buffer */
   size_t buf_len; /* Length of the buffer?? */

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

-- 
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...................................................................
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