Docs: expand TFO information

[exim.git] / test / src / server.c

diff --git a/test/src/server.c b/test/src/server.c
index 4a48965e27142e5f2df0c353a0999045a9ad72ec..5af86d96f76eb4075c2b05a0de962f996456abf5 100644 (file)
--- a/test/src/server.c
+++ b/test/src/server.c
@@ -26,6 +26,7 @@ on all interfaces, unless the option -noipv6 is given. */
 #include <netinet/in_systm.h>
 #include <netinet/in.h>
 #include <netinet/ip.h>
+#include <netinet/tcp.h>
 
 #ifdef HAVE_NETINET_IP_VAR_H
 # include <netinet/ip_var.h>
@@ -52,6 +53,7 @@ on all interfaces, unless the option -noipv6 is given. */
 
 #ifndef CS
 # define CS (char *)
+# define CCS (const char *)
 #endif
 
 
@@ -168,7 +170,7 @@ int connection_count = 1;
 int count;
 int on = 1;
 int timeout = 5;
-int initial_pause = 0;
+int initial_pause = 0, tfo = 0;
 int use_ipv4 = 1;
 int use_ipv6 = 1;
 int debug = 0;
@@ -213,6 +215,7 @@ if (argc > 1 && (!strcmp(argv[1], "--help") || !strcmp(argv[1], "-h")))
        "\n\t-noipv6  disable ipv6"
        "\n\t-oP file write PID to file"
        "\n\t-t n     n seconds timeout"
+       "\n\t-tfo     enable TCP Fast Open"
   );
   exit(0);
   }
@@ -220,6 +223,7 @@ if (argc > 1 && (!strcmp(argv[1], "--help") || !strcmp(argv[1], "-h")))
 while (na < argc && argv[na][0] == '-')
   {
   if (strcmp(argv[na], "-d") == 0) debug = 1;
+  else if (strcmp(argv[na], "-tfo") == 0) tfo = 1;
   else if (strcmp(argv[na], "-t") == 0)
     {
     if (tmo_noerror = ((timeout = atoi(argv[++na])) < 0)) timeout = -timeout;
@@ -294,7 +298,15 @@ else
       printf("IPv6 socket creation failed: %s\n", strerror(errno));
       exit(1);
       }
-
+#ifdef TCP_FASTOPEN
+    if (tfo)
+      {
+      int backlog = 5;
+      if (setsockopt(listen_socket[v6n], IPPROTO_TCP, TCP_FASTOPEN,
+                    &backlog, sizeof(backlog)))
+       if (debug) printf("setsockopt TCP_FASTOPEN: %s\n", strerror(errno));
+      }
+#endif
     /* If this is an IPv6 wildcard socket, set IPV6_V6ONLY if that option is
     available. */
 
@@ -318,6 +330,15 @@ else
       printf("IPv4 socket creation failed: %s\n", strerror(errno));
       exit(1);
       }
+#ifdef TCP_FASTOPEN
+    if (tfo)
+      {
+      int backlog = 5;
+      if (setsockopt(listen_socket[v4n], IPPROTO_TCP, TCP_FASTOPEN,
+                    &backlog, sizeof(backlog)))
+       if (debug) printf("setsockopt TCP_FASTOPEN: %s\n", strerror(errno));
+      }
+#endif
     }
   }
 
@@ -397,7 +418,6 @@ else
       sin4.sin_addr.s_addr = (S_ADDR_TYPE)INADDR_ANY;
       sin4.sin_port = htons(port);
       if (bind(listen_socket[i], (struct sockaddr *)&sin4, sizeof(sin4)) < 0)
-        {
         if (listen_socket[v6n] < 0 || errno != EADDRINUSE)
           {
           printf("IPv4 socket bind() failed: %s\n", strerror(errno));
@@ -408,7 +428,6 @@ else
           close(listen_socket[i]);
           listen_socket[i] = -1;
           }
-        }
       }
     }
   }
@@ -662,7 +681,7 @@ for (count = 0; count < connection_count; count++)
          n = dlen < sizeof(buffer) ? dlen : sizeof(buffer);
          if ((n = read(dup_accept_socket, CS buffer, n)) == 0)
            {
-           printf("Unxpected EOF read from client\n");
+           printf("Unexpected EOF read from client\n");
            s = s->next;
            goto END_OFF;
            }
@@ -672,7 +691,7 @@ for (count = 0; count < connection_count; count++)
        while (dlen-- > 0)
          if (fgetc(in) == EOF)
            {
-           printf("Unxpected EOF read from client\n");
+           printf("Unexpected EOF read from client\n");
            s = s->next;
            goto END_OFF;
            }
@@ -728,7 +747,7 @@ for (count = 0; count < connection_count; count++)
        alarm(0);
        n += offset;
 
-       printit(buffer, n);
+       printit(CS buffer, n);
 
        if (data) do
          {
@@ -774,8 +793,10 @@ for (count = 0; count < connection_count; count++)
          }
        }
 
-       if (sscanf(buffer, "<Content-length: %d", &content_length.left)) content_length.in_use = TRUE;
-       if (content_length.in_use && content_length.left <= 0) shutdown(dup_accept_socket, SHUT_RD);
+       if (sscanf(CCS buffer, "<Content-length: %d", &content_length.left))
+                 content_length.in_use = TRUE;
+       if (content_length.in_use && content_length.left <= 0)
+         shutdown(dup_accept_socket, SHUT_RD);
       }
     }