From b8191e975faa7810ed3d858205b0b3f0d297f0b2 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 25 Apr 2017 00:50:04 +0200
Subject: [PATCH] pingpong: use the set buffer size

---
 lib/pingpong.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/lib/pingpong.c b/lib/pingpong.c
index b833fcd4c..5ed79b718 100644
--- a/lib/pingpong.c
+++ b/lib/pingpong.c
@@ -286,7 +286,8 @@ CURLcode Curl_pp_readresp(curl_socket_t sockfd,
   /* number of bytes in the current line, so far */
   perline = (ssize_t)(ptr-pp->linestart_resp);
 
-  while((pp->nread_resp<BUFSIZE) && (keepon && !result)) {
+  while((pp->nread_resp < (size_t)data->set.buffer_size) &&
+        (keepon && !result)) {
 
     if(pp->cache) {
       /* we had data in the "cache", copy that instead of doing an actual
@@ -296,7 +297,7 @@ CURLcode Curl_pp_readresp(curl_socket_t sockfd,
        * it would have been populated with something of size int to begin
        * with, even though its datatype may be larger than an int.
        */
-      DEBUGASSERT((ptr+pp->cache_size) <= (buf+BUFSIZE+1));
+      DEBUGASSERT((ptr+pp->cache_size) <= (buf+data->set.buffer_size+1));
       memcpy(ptr, pp->cache, pp->cache_size);
       gotbytes = (ssize_t)pp->cache_size;
       free(pp->cache);    /* free the cache */
@@ -308,8 +309,10 @@ CURLcode Curl_pp_readresp(curl_socket_t sockfd,
       enum protection_level prot = conn->data_prot;
       conn->data_prot = PROT_CLEAR;
 #endif
-      DEBUGASSERT((ptr+BUFSIZE-pp->nread_resp) <= (buf+BUFSIZE+1));
-      result = Curl_read(conn, sockfd, ptr, BUFSIZE-pp->nread_resp,
+      DEBUGASSERT((ptr + data->set.buffer_size - pp->nread_resp) <=
+                  (buf + data->set.buffer_size + 1));
+      result = Curl_read(conn, sockfd, ptr,
+                         data->set.buffer_size - pp->nread_resp,
                          &gotbytes);
 #ifdef HAVE_GSSAPI
       DEBUGASSERT(prot  > PROT_NONE && prot < PROT_LAST);
@@ -402,7 +405,7 @@ CURLcode Curl_pp_readresp(curl_socket_t sockfd,
       }
       else if(keepon) {
 
-        if((perline == gotbytes) && (gotbytes > BUFSIZE/2)) {
+        if((perline == gotbytes) && (gotbytes > data->set.buffer_size/2)) {
           /* We got an excessive line without newlines and we need to deal
              with it. We keep the first bytes of the line then we throw
              away the rest. */
@@ -414,7 +417,7 @@ CURLcode Curl_pp_readresp(curl_socket_t sockfd,
              interested in the first piece */
           clipamount = 40;
         }
-        else if(pp->nread_resp > BUFSIZE/2) {
+        else if(pp->nread_resp > (size_t)data->set.buffer_size/2) {
           /* We got a large chunk of data and there's potentially still
              trailing data to take care of, so we put any such part in the
              "cache", clear the buffer to make space and restart. */