added vfork()

git-svn-id: svn://svn.code.sf.net/p/axtls/code/trunk@127 9a5d90b5-6617-0410-8a86-bb477d3ed2e3

httpd/Config.in

@@ -89,6 +89,15 @@ config CONFIG_HTTP_LUA_PREFIX
         The location of Lua's installation prefix. This is also necessary for
         Lua's cgi launcher application.
 
+config CONFIG_HTTP_LUA_CGI_LAUNCHER
+    string "CGI launcher location"
+    default "/bin/cgi.exe" if CONFIG_PLATFORM_CYGWIN
+    default "/bin/cgi" if !CONFIG_PLATFORM_CYGWIN
+    depends on CONFIG_HTTP_ENABLE_LUA
+    help
+        The location of LUA's CGI launcher application (after
+        the CONFIG_HTTP_LUA_PREFIX)
+
 config CONFIG_HTTP_BUILD_LUA
     bool "Build Lua"
     default n

httpd/axhttp.h

@@ -24,6 +24,7 @@
 #ifdef CONFIG_HTTP_HAS_IPV6
 #define HAVE_IPV6
 #endif
+
 #define MAXPOSTDATASIZE                     30000
 #define MAXREQUESTLENGTH                    256
 #define BLOCKSIZE                           4096

httpd/axhttpd.c

@@ -175,9 +175,12 @@ int main(int argc, char *argv[])
 
 #if defined(CONFIG_HTTP_HAS_CGI)
     addcgiext(CONFIG_HTTP_CGI_EXTENSIONS);
-    printf("addcgiext %s\n",CONFIG_HTTP_CGI_EXTENSIONS); 
 #endif
+
 #if defined(CONFIG_HTTP_VERBOSE)
+#if defined(CONFIG_HTTP_HAS_CGI)
+    printf("addcgiext %s\n", CONFIG_HTTP_CGI_EXTENSIONS); 
+#endif
     printf("%s: listening on ports %d (http) and %d (https)\n", 
             server_version, CONFIG_HTTP_PORT, CONFIG_HTTP_HTTPS_PORT);
     TTY_FLUSH();
@@ -191,7 +194,6 @@ int main(int argc, char *argv[])
     setuid(32767);
 #endif
 #ifdef CONFIG_HTTP_IS_DAEMON
-    fprintf(stderr, "ERR: fork is not working on uclinux\n");
     if (fork() > 0)  /* parent will die */
         exit(0);
 

httpd/proc.c

@@ -672,11 +672,11 @@ static void proccgi(struct connstruct *cn)
         TTY_FLUSH();
         return;
     }
-#ifdef EMBED
+
+    /*
+     * use vfork() instead of fork() for performance 
+     */
     if ((pid = vfork()) > 0)  /* parent */
-#else
-    if ((pid = fork()) > 0)  /* parent */
-#endif
     {
         /* Send POST query data to CGI script */
         if ((cn->reqtype == TYPE_POST) && (cn->content_length > 0)) 
@@ -698,7 +698,7 @@ static void proccgi(struct connstruct *cn)
         return;
     }
 
-    if (pid < 0) /* fork failed */
+    if (pid < 0) /* vfork failed */
         exit(1);
 
     /* The problem child... */
@@ -772,7 +772,7 @@ static void proccgi(struct connstruct *cn)
     if (cgi_index >= CGI_ARG_SIZE)
     {
         printf("Content-type: text/plain\n\nToo many CGI args\n");
-        exit(1);
+        _exit(1);
     }
 
     /* copy across the pointer indexes */
@@ -786,7 +786,7 @@ static void proccgi(struct connstruct *cn)
 
     execve(myargs[0], myargs, cgiptr);
     printf("Content-type: text/plain\n\nshouldn't get here\n");
-    exit(1);
+    _exit(1);
 #endif
 }
 
@@ -969,15 +969,8 @@ static void buildactualfile(struct connstruct *cn)
      * end as we need the directory name.
      */
     if (cn->is_lua)
-#ifdef CONFIG_PLATFORM_CYGWIN
-        sprintf(cn->actualfile, "%s/bin/cgi.exe", CONFIG_HTTP_LUA_PREFIX);
-#else
-#ifdef EMBED
-        sprintf(cn->actualfile, "%s", CONFIG_HTTP_LUA_PREFIX);
-#else
-        sprintf(cn->actualfile, "%s/bin/cgi", CONFIG_HTTP_LUA_PREFIX);
-#endif
-#endif
+        sprintf(cn->actualfile, "%s%s", CONFIG_HTTP_LUA_PREFIX, 
+                CONFIG_HTTP_LUA_CGI_LAUNCHER);
 #endif
 }