1. sws now supports two new "commands" and 2. if built with

CURL_SWS_FORK_ENABLED defined it forks for each new connection and thus can
support any amount of connection clients (used for hiper tests and not for the
standard plain curl test suite)

tests/FILEFORMAT

@@ -83,9 +83,11 @@ NOSAVE
 SLOWDOWN
 PASVBADIP  - makes PASV send back an illegal IP in its 227 response
 
-For HTTP, one specified command is supported:
- "auth_required" - if this is set and a POST/PUT is made without auth, the
+For HTTP:
+auth_required - if this is set and a POST/PUT is made without auth, the
                 server will NOT wait for the full request body to get sent
+idle -          do nothing after receiving the request, just "sit idle"
+stream -        continuously send data to the client, never-ending
 </servercmd>
 </reply>
 

tests/server/sws.c

@@ -66,6 +66,13 @@
 /* include memdebug.h last */
 #include "memdebug.h"
 
+/*
+ * The normal sws build for the plain standard curl test suite has no use for
+ * fork(), but if you feel wild and crazy and want to setup some more exotic
+ * tests. Define this and run...
+ */
+/*#define CURL_SWS_FORK_ENABLED 1 */
+
 #define REQBUFSIZ 150000
 #define REQBUFSIZ_TXT "149999"
 
@@ -75,6 +82,10 @@ bool prevbounce;    /* instructs the server to increase the part number for
                        a test in case the identical testno+partno request
                        shows up again */
 
+#define RCMD_NORMALREQ 0 /* default request, use the tests file normally */
+#define RCMD_IDLE      1 /* told to sit idle */
+#define RCMD_STREAM    2 /* told to stream */
+
 struct httprequest {
   char reqbuf[REQBUFSIZ]; /* buffer area for the incoming request */
   int offset;     /* size of the incoming request */
@@ -87,6 +98,8 @@ struct httprequest {
   size_t cl;      /* Content-Length of the incoming request */
   bool digest;    /* Authorization digest header found */
   bool ntlm;      /* Authorization ntlm header found */
+
+  int rcmd;       /* doing a special command, see defines above */
 };
 
 int ProcessRequest(struct httprequest *req);
@@ -113,6 +126,13 @@ const char *serverlogfile = DEFAULT_LOGFILE;
 
 #define CMD_AUTH_REQUIRED "auth_required"
 
+/* 'idle' means that it will accept the request fine but never respond
+   any data. Just keep the connection alive. */
+#define CMD_IDLE "idle"
+
+/* 'stream' means to send a never-ending stream of data */
+#define CMD_STREAM "stream"
+
 #define END_OF_HEADERS "\r\n\r\n"
 
 enum {
@@ -256,6 +276,15 @@ int ProcessRequest(struct httprequest *req)
             logmsg("instructed to require authorization header");
             req->auth_req = TRUE;
           }
+          else if(!strncmp(CMD_IDLE, cmd, strlen(CMD_IDLE))) {
+            logmsg("instructed to idle");
+            req->rcmd = RCMD_IDLE;
+            req->open = TRUE;
+          }
+          else if(!strncmp(CMD_STREAM, cmd, strlen(CMD_STREAM))) {
+            logmsg("instructed to stream");
+            req->rcmd = RCMD_STREAM;
+          }
           free(cmd);
         }
       }
@@ -356,7 +385,7 @@ int ProcessRequest(struct httprequest *req)
     /* If the client is passing this type-3 NTLM header */
     req->partno += 1002;
     req->ntlm = TRUE; /* NTLM found */
-    logmsg("Received NTLM type-3, xxxxxxxxxxxxx sending back data %d", req->partno);
+    logmsg("Received NTLM type-3, sending back data %d", req->partno);
     if(req->cl) {
       logmsg("  Expecting %d POSTed bytes", req->cl);
     }
@@ -478,10 +507,30 @@ static int send_doc(int sock, struct httprequest *req)
 
   char partbuf[80]="data";
 
-  req->open = FALSE;
-
   logmsg("Send response number %d part %d", req->testno, req->partno);
 
+  switch(req->rcmd) {
+  default:
+  case RCMD_NORMALREQ:
+    break; /* continue with business as usual */
+  case RCMD_STREAM:
+#define STREAMTHIS "a string to stream 01234567890\n"
+    count = strlen(STREAMTHIS);
+    while(1) {
+      written = swrite(sock, STREAMTHIS, count);
+      if(written != (int)count) {
+        logmsg("Stopped streaming");
+        return -1;
+      }
+    }
+    break;
+  case RCMD_IDLE:
+    /* Do nothing. Sit idle. Pretend it rains. */
+    return 0;
+  }
+
+  req->open = FALSE;
+
   if(req->testno < 0) {
     switch(req->testno) {
     case DOCNUMBER_QUIT:
@@ -752,9 +801,24 @@ int main(int argc, char *argv[])
   while (1) {
     msgsock = accept(sock, NULL, NULL);
 
-    if (msgsock == -1)
-      continue;
+    if (msgsock == -1) {
+      printf("MAJOR ERROR: accept() failed!\n");
+      break;
+    }
 
+#ifdef CURL_SWS_FORK_ENABLED
+    /* The fork enabled version just forks off the child and don't care
+       about it anymore, so don't assume otherwise. Beware and don't do
+       this at home. */
+    rc = fork();
+    if(-1 == rc) {
+      printf("MAJOR ERROR: fork() failed!\n");
+      break;
+    }
+
+    /* 0 is returned to the child */
+    if(0 == rc) {
+#endif
     logmsg("====> Client connect");
 
     do {
@@ -792,6 +856,9 @@ int main(int argc, char *argv[])
 
     if (req.testno == DOCNUMBER_QUIT)
       break;
+#ifdef CURL_SWS_FORK_ENABLED
+    }
+#endif
   }
 
   sclose(sock);