Implemented SVDRP command for plugins

CONTRIBUTORS

@@ -1449,3 +1449,6 @@ David Woodhouse <dwmw2@infradead.org>
 Marcus Hilbrich <s4440288@mail.inf.tu-dresden.de>
  for a bug report that lead to fixing the EPG scan, so that it doesn't use the
  primary device if that is currently in Transfer-Mode from itself
+
+Hardy Flor <HFlor@web.de>
+ for a patch that was used as a base to implement SVDRP commands for plugins

HISTORY

@@ -3736,3 +3736,8 @@ Video Disk Recorder Revision History
   as delimiter (thanks to Marco Schlüßler).
 - Moved cMenuEditTimer and cMenuEvent to menu.h so that plugins can use it (suggested
   by Thomas Günther).
+- The new static function cString::sprintf() can be used to easily create a formatted
+  string.
+- Plugins can now implement their own SVDRP commands (based on a patch from Hardy
+  Flor). See PLUGINS.html, section "SVDRP commands" for details. The SVDRP commands
+  of a plugin are accessed through the new SVDRP command PLUG.

PLUGINS.html

@@ -14,18 +14,18 @@ Copyright &copy; 2005 Klaus Schmidinger<br>
 <a href="http://www.cadsoft.de/vdr">www.cadsoft.de/vdr</a>
 </center>
 <p>
-<!--X1.3.19--><table width=100%><tr><td bgcolor=#0000AA>&nbsp;</td><td width=100%>
+<!--X1.3.20--><table width=100%><tr><td bgcolor=#0000AA>&nbsp;</td><td width=100%>
-Important modifications introduced in version 1.3.19 are marked like this.
-<!--X1.3.19--></td></tr></table>
-<!--X1.3.20--><table width=100%><tr><td bgcolor=#00AA00>&nbsp;</td><td width=100%>
 Important modifications introduced in version 1.3.20 are marked like this.
 <!--X1.3.20--></td></tr></table>
-<!--X1.3.21--><table width=100%><tr><td bgcolor=#AA0000>&nbsp;</td><td width=100%>
+<!--X1.3.21--><table width=100%><tr><td bgcolor=#00AA00>&nbsp;</td><td width=100%>
 Important modifications introduced in version 1.3.21 are marked like this.
 <!--X1.3.21--></td></tr></table>
-<!--X1.3.30--><table width=100%><tr><td bgcolor=#FF0000>&nbsp;</td><td width=100%>
+<!--X1.3.30--><table width=100%><tr><td bgcolor=#AA0000>&nbsp;</td><td width=100%>
 Important modifications introduced in version 1.3.30 are marked like this.
 <!--X1.3.30--></td></tr></table>
+<!--X1.3.31--><table width=100%><tr><td bgcolor=#FF0000>&nbsp;</td><td width=100%>
+Important modifications introduced in version 1.3.31 are marked like this.
+<!--X1.3.31--></td></tr></table>
 <p>
 VDR provides an easy to use plugin interface that allows additional functionality
 to be added to the program by implementing a dynamically loadable library file.
@@ -58,7 +58,7 @@ structures and allows it to hook itself into specific areas to perform special a
 <li><a href="#Command line arguments">Command line arguments</a>
 <li><a href="#Command line help">Command line help</a>
 <li><a href="#Getting started">Getting started</a>
-<!--X1.3.20--><table width=100%><tr><td bgcolor=#00AA00>&nbsp;</td><td width=100%>
+<!--X1.3.20--><table width=100%><tr><td bgcolor=#0000AA>&nbsp;</td><td width=100%>
 <li><a href="#Shutting down">Shutting down</a>
 <!--X1.3.20--></td></tr></table>
 <li><a href="#Main menu entry">Main menu entry</a>
@@ -68,9 +68,12 @@ structures and allows it to hook itself into specific areas to perform special a
 <li><a href="#The Setup menu">The Setup menu</a>
 <li><a href="#Configuration files">Configuration files</a>
 <li><a href="#Internationalization">Internationalization</a>
-<!--X1.3.30--><table width=100%><tr><td bgcolor=#FF0000>&nbsp;</td><td width=100%>
+<!--X1.3.30--><table width=100%><tr><td bgcolor=#AA0000>&nbsp;</td><td width=100%>
 <li><a href="#Custom services">Custom services</a>
 <!--X1.3.30--></td></tr></table>
+<!--X1.3.31--><table width=100%><tr><td bgcolor=#FF0000>&nbsp;</td><td width=100%>
+<li><a href="#SVDRP commands">SVDRP commands</a>
+<!--X1.3.31--></td></tr></table>
 <li><a href="#Loading plugins into VDR">Loading plugins into VDR</a>
 <li><a href="#Building the distribution package">Building the distribution package</a>
 </ul>
@@ -84,7 +87,7 @@ structures and allows it to hook itself into specific areas to perform special a
 <li><a href="#Skins">Skins</a>
 <li><a href="#Themes">Themes</a>
 <li><a href="#Devices">Devices</a>
-<!--X1.3.21--><table width=100%><tr><td bgcolor=#AA0000>&nbsp;</td><td width=100%>
+<!--X1.3.21--><table width=100%><tr><td bgcolor=#00AA00>&nbsp;</td><td width=100%>
 <li><a href="#Audio">Audio</a>
 <!--X1.3.21--></td></tr></table>
 <li><a href="#Remote Control">Remote Control</a>
@@ -311,7 +314,7 @@ since VDR, for instance, has to create the plugin objects in order to get their
 command line help - and after that immediately destroys them again.
 <p>
 The <b>destructor</b> has to clean up any data created by the plugin.
-<!--X1.3.20--><table width=100%><tr><td bgcolor=#00AA00>&nbsp;</td><td width=100%>
+<!--X1.3.20--><table width=100%><tr><td bgcolor=#0000AA>&nbsp;</td><td width=100%>
 Any threads the plugin may have created shall be stopped in the
 <a href="#Shutting down"><tt>Stop()</tt></a> function.
 <!--X1.3.20--></td></tr></table>
@@ -509,7 +512,7 @@ VDR to exit.
 If the plugin doesn't implement any background functionality or internationalized
 texts, it doesn't need to implement either of these functions.
 
-<!--X1.3.20--><table width=100%><tr><td bgcolor=#00AA00>&nbsp;</td><td width=100%>
+<!--X1.3.20--><table width=100%><tr><td bgcolor=#0000AA>&nbsp;</td><td width=100%>
 <a name="Shutting down"><hr><h2>Shutting down</h2>
 
 <center><i><b>Stop it, right there!</b></i></center><p>
@@ -869,7 +872,7 @@ Texts are first searched for in the <i>Phrases</i> registered for this plugin (i
 and then in the global VDR texts. So a plugin can make use of texts defined by the
 core VDR code.
 
-<!--X1.3.30--><table width=100%><tr><td bgcolor=#FF0000>&nbsp;</td><td width=100%>
+<!--X1.3.30--><table width=100%><tr><td bgcolor=#AA0000>&nbsp;</td><td width=100%>
 <a name="Custom services"><hr><h2>Custom services</h2>
 
 <center><i><b>What can I do for you?</b></i></center><p>
@@ -940,6 +943,97 @@ any plugin handled the request, or <tt>false</tt> if no plugin handled the reque
 
 <!--X1.3.30--></td></tr></table>
 
+<!--X1.3.31--><table width=100%><tr><td bgcolor=#FF0000>&nbsp;</td><td width=100%>
+<a name="SVDRP commands"><hr><h2>SVDRP commands</h2>
+
+<center><i><b>Infinite Diversity in Infinite Combinations</b></i></center><p>
+
+A plugin can implement its own SVDRP commands through the two functions
+
+<p><table><tr><td bgcolor=#F0F0F0><pre>
+virtual const char **SVDRPHelpPages(void);
+virtual cString SVDRPCommand(const char *Cmd, const char *Option, int &ReplyCode);
+</pre></td></tr></table><p>
+
+The <tt>SVDRPHelpPages()</tt> function must return a pointer to a list of help
+strings for all of the plugin's SVDRP commands, like this
+
+<p><table><tr><td bgcolor=#F0F0F0><pre>
+const char **cPluginSvdrpdemo::SVDRPHelpPages(void)
+{
+  static const char *HelpPages[] = {
+    "DATE\n"
+    "    Print the current date.",
+    "TIME [ raw ]\n"
+    "    Print the current time.\n"
+    "    If the optional keyword 'raw' is given, the result will be the\n"
+    "    raw time_t data.",
+    NULL
+    };
+  return HelpPages;
+}
+</pre></td></tr></table><p>
+
+Note that the first line of each entry contains the actual command and its
+parameters, while the following lines explain what the command does and what
+the parameters (if any) mean. All lines of the explanation shall be indented
+by exactly 4 blanks (no tabs), and none of them shall be longer than 79 characters
+(to avoid messy output on 80 character wide terminals). The last entry in the
+list must be NULL.
+<p>
+The actual processing of SVDRP commands for a plugin is done in its
+<tt>SVDRPCommand()</tt> function.
+Here's an example of such a function, which implements the commands advertised in
+the above help texts:
+
+<p><table><tr><td bgcolor=#F0F0F0><pre>
+cString cPluginSvdrpdemo::SVDRPCommand(const char *Command, const char *Option, int &ReplyCode)
+{
+  if (strcasecmp(Command, "DATE") == 0) {
+     // we use the default reply code here
+     return DateString(time(NULL));
+     }
+  else if (strcasecmp(Command, "TIME") == 0) {
+     ReplyCode = 901;
+     if (*Option) {
+        if (strcasecmp(Option, "RAW") == 0)
+           return cString::sprintf("%ld\nThis is the number of seconds since the epoch\n"
+                                   "and a demo of a multi-line reply", time(NULL));
+        else {
+           ReplyCode = 504;
+           return cString::sprintf("Unknown option: \"%s\"", Option);
+           }
+        }
+     return TimeString(time(NULL));
+     }
+  return NULL;
+}
+</pre></td></tr></table><p>
+
+The command is given to this function in the <tt>Command</tt> parameter, and any optional parameters
+are given in the <tt>Option</tt> string. <tt>Command</tt> always points to an actual, non-empty string, while
+<tt>Option</tt> may point to an empty string (it is never NULL, though).
+<p>
+If a plugin doesn't implement the given command, it shall return NULL, and VDR will
+automatically issue a proper error message. If it encounters an unknown or invalid
+option, it shall set the <tt>ReplyCode</tt> to one of the codes defined in <tt>VDR/svdrp.c</tt>
+and return a proper error message.
+<p>
+The default <tt>ReplyCode</tt> is 900, and if the plugin doesn't care about reply
+codes, it doesn't have to set it to anything else (unless there is an error, of
+course). The codes in the range 901..999 are reserved for plugins that want
+to use special reply codes. Any plugin can use any of these values and doesn't
+have to coordinate this with any other plugin, since the caller knows which
+plugin was called, and will therefore process the values according to the
+particular plugin's definitions.
+<p>
+The returned string may consist of several lines, separated by the newline character
+('<tt>\n</tt>'). Each of these lines will be preceeded with the <tt>ReplyCode</tt>
+when presenting them to the caller, and the continuation character ('<tt>-</tt>')
+will be set for all but the last one.
+
+<!--X1.3.31--></td></tr></table>
+
 <a name="Loading plugins into VDR"><hr><h2>Loading plugins into VDR</h2>
 
 <center><i><b>Saddling up!</b></i></center><p>
@@ -1276,9 +1370,7 @@ public:
   };
 
 cMyReceiver::cMyReceiver(int Pid)
-<!--X1.3.19--><table width=100%><tr><td bgcolor=#0000AA>&nbsp;</td><td width=100%>
 :cReceiver(0, -1, Pid)
-<!--X1.3.19--></td></tr></table>
 {
 }
 
@@ -1735,7 +1827,7 @@ private:
   virtual void Action(void);
 public:
   cMyAudio(void);
-<!--X1.3.21--><table width=100%><tr><td bgcolor=#AA0000>&nbsp;</td><td width=100%>
+<!--X1.3.21--><table width=100%><tr><td bgcolor=#00AA00>&nbsp;</td><td width=100%>
   virtual void Play(const uchar *Data, int Length, uchar Id);
 <!--X1.3.21--></td></tr></table>
   virtual void Mute(bool On);

PLUGINS/src/svdrpdemo/COPYING

@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+
+	    How to Apply These Terms to Your New Programs
+
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+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.

PLUGINS/src/svdrpdemo/HISTORY

@@ -0,0 +1,6 @@
+VDR Plugin 'svdrpdemo' Revision History
+---------------------------------------
+
+2005-08-27: Version 0.0.1
+
+- Initial revision.

PLUGINS/src/svdrpdemo/Makefile

@@ -0,0 +1,82 @@
+#
+# Makefile for a Video Disk Recorder plugin
+#
+# $Id: Makefile 1.1 2005/08/27 11:26:49 kls Exp $
+
+# The official name of this plugin.
+# This name will be used in the '-P...' option of VDR to load the plugin.
+# By default the main source file also carries this name.
+#
+PLUGIN = svdrpdemo
+
+### The version number of this plugin (taken from the main source file):
+
+VERSION = $(shell grep 'static const char \*VERSION *=' $(PLUGIN).c | awk '{ print $$6 }' | sed -e 's/[";]//g')
+
+### The C++ compiler and options:
+
+CXX      ?= g++
+CXXFLAGS ?= -O2 -Wall -Woverloaded-virtual
+
+### The directory environment:
+
+DVBDIR = ../../../../DVB
+VDRDIR = ../../..
+LIBDIR = ../../lib
+TMPDIR = /tmp
+
+### Allow user defined options to overwrite defaults:
+
+-include $(VDRDIR)/Make.config
+
+### The version number of VDR (taken from VDR's "config.h"):
+
+VDRVERSION = $(shell grep 'define VDRVERSION ' $(VDRDIR)/config.h | awk '{ print $$3 }' | sed -e 's/"//g')
+
+### The name of the distribution archive:
+
+ARCHIVE = $(PLUGIN)-$(VERSION)
+PACKAGE = vdr-$(ARCHIVE)
+
+### Includes and Defines (add further entries here):
+
+INCLUDES += -I$(VDRDIR)/include -I$(DVBDIR)/include
+
+DEFINES += -D_GNU_SOURCE -DPLUGIN_NAME_I18N='"$(PLUGIN)"'
+
+### The object files (add further files here):
+
+OBJS = $(PLUGIN).o
+
+### Implicit rules:
+
+%.o: %.c
+	$(CXX) $(CXXFLAGS) -c $(DEFINES) $(INCLUDES) $<
+
+# Dependencies:
+
+MAKEDEP = $(CXX) -MM -MG
+DEPFILE = .dependencies
+$(DEPFILE): Makefile
+	@$(MAKEDEP) $(DEFINES) $(INCLUDES) $(OBJS:%.o=%.c) > $@
+
+-include $(DEPFILE)
+
+### Targets:
+
+all: libvdr-$(PLUGIN).so
+
+libvdr-$(PLUGIN).so: $(OBJS)
+	$(CXX) $(CXXFLAGS) -shared $(OBJS) -o $@
+	@cp $@ $(LIBDIR)/$@.$(VDRVERSION)
+
+dist: clean
+	@-rm -rf $(TMPDIR)/$(ARCHIVE)
+	@mkdir $(TMPDIR)/$(ARCHIVE)
+	@cp -a * $(TMPDIR)/$(ARCHIVE)
+	@tar czf $(PACKAGE).tgz -C $(TMPDIR) $(ARCHIVE)
+	@-rm -rf $(TMPDIR)/$(ARCHIVE)
+	@echo Distribution package created as $(PACKAGE).tgz
+
+clean:
+	@-rm -f $(OBJS) $(DEPFILE) *.so *.tgz core* *~

PLUGINS/src/svdrpdemo/README

@@ -0,0 +1,13 @@
+This is a "plugin" for the Video Disk Recorder (VDR).
+
+Written by:                  Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>
+
+Project's homepage:          http://www.cadsoft.de/vdr
+
+Latest version available at: http://www.cadsoft.de/vdr
+
+See the file COPYING for license information.
+
+Description:
+
+This plugin shows how to add SVDRP support to a plugin.

PLUGINS/src/svdrpdemo/svdrpdemo.c

@@ -0,0 +1,60 @@
+/*
+ * svdrpdemo.c: A plugin for the Video Disk Recorder
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id: svdrpdemo.c 1.1 2005/08/27 16:28:58 kls Exp $
+ */
+
+#include <vdr/plugin.h>
+
+static const char *VERSION        = "0.0.1";
+static const char *DESCRIPTION    = "How to add SVDRP support to a plugin";
+static const char *MAINMENUENTRY  = NULL;
+
+class cPluginSvdrpdemo : public cPlugin {
+private:
+  // Add any member variables or functions you may need here.
+public:
+  virtual const char *Version(void) { return VERSION; }
+  virtual const char *Description(void) { return DESCRIPTION; }
+  virtual const char **SVDRPHelpPages(void);
+  virtual cString SVDRPCommand(const char *Command, const char *Option, int &ReplyCode);
+  };
+
+const char **cPluginSvdrpdemo::SVDRPHelpPages(void)
+{
+  static const char *HelpPages[] = {
+    "DATE\n"
+    "    Print the current date.",
+    "TIME [ raw ]\n"
+    "    Print the current time.\n"
+    "    If the optional keyword 'raw' is given, the result will be the\n"
+    "    raw time_t data.",
+    NULL
+    };
+  return HelpPages;
+}
+
+cString cPluginSvdrpdemo::SVDRPCommand(const char *Command, const char *Option, int &ReplyCode)
+{
+  if (strcasecmp(Command, "DATE") == 0) {
+     // we use the default reply code here
+     return DateString(time(NULL));
+     }
+  else if (strcasecmp(Command, "TIME") == 0) {
+     ReplyCode = 901;
+     if (*Option) {
+        if (strcasecmp(Option, "RAW") == 0)
+           return cString::sprintf("%ld\nThis is the number of seconds since the epoch\nand a demo of a multi-line reply", time(NULL));
+        else {
+           ReplyCode = 504;
+           return cString::sprintf("Unknown option: \"%s\"", Option);
+           }
+        }
+     return TimeString(time(NULL));
+     }
+  return NULL;
+}
+
+VDRPLUGINCREATOR(cPluginSvdrpdemo); // Don't touch this!

newplugin

@@ -12,7 +12,7 @@
 # See the main source file 'vdr.c' for copyright information and
 # how to reach the author.
 #
-# $Id: newplugin 1.19 2005/08/21 09:32:08 kls Exp $
+# $Id: newplugin 1.20 2005/08/27 16:13:29 kls Exp $
 
 $PLUGIN_NAME = $ARGV[0] || die "Usage: newplugin <name>\n";
 
@@ -171,6 +171,8 @@ public:
   virtual cMenuSetupPage *SetupMenu(void);
   virtual bool SetupParse(const char *Name, const char *Value);
   virtual bool Service(const char *Id, void *Data = NULL);
+  virtual const char **SVDRPHelpPages(void);
+  virtual cString SVDRPCommand(const char *Command, const char *Option, int &ReplyCode);
   };
 
 cPlugin${PLUGIN_CLASS}::cPlugin$PLUGIN_CLASS(void)
@@ -243,6 +245,18 @@ bool cPlugin${PLUGIN_CLASS}::Service(const char *Id, void *Data)
   return false;
 }
 
+const char **cPlugin${PLUGIN_CLASS}::SVDRPHelpPages(vo<F3>id)
+{
+  // Return help text for SVDRP commands this plugin implements
+  return NULL;
+}
+
+const char *cPlugin${PLUGIN_CLASS}::SVDRPCommand(const char *Command, const char *Option, int &ReplyCode)
+{
+  // Process SVDRP commands this plugin implements
+  return NULL;
+}
+
 VDRPLUGINCREATOR(cPlugin$PLUGIN_CLASS); // Don't touch this!
 };
 

plugin.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: plugin.c 1.14 2005/08/21 09:35:28 kls Exp $
+ * $Id: plugin.c 1.15 2005/08/27 16:13:24 kls Exp $
  */
 
 #include "plugin.h"
@@ -104,6 +104,16 @@ bool cPlugin::Service(const char *Id, void *Data)
   return false;
 }
 
+const char **cPlugin::SVDRPHelpPages(void)
+{
+  return NULL;
+}
+
+cString cPlugin::SVDRPCommand(const char *Command, const char *Option, int &ReplyCode)
+{
+  return NULL;
+}
+
 void cPlugin::RegisterI18n(const tI18nPhrase * const Phrases)
 {
   I18nRegister(Phrases, Name());

plugin.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: plugin.h 1.9 2005/08/21 09:32:08 kls Exp $
+ * $Id: plugin.h 1.10 2005/08/27 16:13:17 kls Exp $
  */
 
 #ifndef __PLUGIN_H
@@ -51,6 +51,8 @@ public:
   void RegisterI18n(const tI18nPhrase * const Phrases);
 
   virtual bool Service(const char *Id, void *Data = NULL);
+  virtual const char **SVDRPHelpPages(void);
+  virtual cString SVDRPCommand(const char *Command, const char *Option, int &ReplyCode);
 
   static void SetConfigDirectory(const char *Dir);
   static const char *ConfigDirectory(const char *PluginName = NULL);

svdrp.c

@@ -10,7 +10,7 @@
  * and interact with the Video Disk Recorder - or write a full featured
  * graphical interface that sits on top of an SVDRP connection.
  *
- * $Id: svdrp.c 1.74 2005/08/07 14:20:41 kls Exp $
+ * $Id: svdrp.c 1.75 2005/08/27 16:18:32 kls Exp $
  */
 
 #include "svdrp.h"
@@ -32,6 +32,7 @@
 #include "eitscan.h"
 #include "keys.h"
 #include "menu.h"
+#include "plugin.h"
 #include "remote.h"
 #include "timers.h"
 #include "tools.h"
@@ -253,6 +254,12 @@ const char *HelpPages[] = {
   "    zero, this means that the timer is currently recording and has started\n"
   "    at the given time. The first value in the resulting line is the number\n"
   "    of the timer.",
+  "PLUG <name> [ <command> [ <options> ]]\n"
+  "    Send a command to a plugin.\n"
+  "    The PLUG command without any parameters lists all plugins.\n"
+  "    If only a name is given, all commands known to that plugin are listed.\n"
+  "    If a command is given (optionally followed by parameters), that command\n"
+  "    is sent to the plugin, and the result will be displayed.",
   "PUTE\n"
   "    Put data into the EPG list. The data entered has to strictly follow the\n"
   "    format defined in vdr(5) for the 'epg.data' file.  A '.' on a line\n"
@@ -294,6 +301,8 @@ const char *HelpPages[] = {
  504 Command parameter not implemented
  550 Requested action not taken
  554 Transaction failed
+ 900 Default plugin reply code
+ 901..999 Plugin specific reply codes
 
 */
 
@@ -315,15 +324,16 @@ const char *GetHelpTopic(const char *HelpPage)
   return NULL;
 }
 
-const char *GetHelpPage(const char *Cmd)
+const char *GetHelpPage(const char *Cmd, const char **p)
 {
-  const char **p = HelpPages;
+  if (p) {
      while (*p) {
            const char *t = GetHelpTopic(*p);
            if (strcasecmp(Cmd, t) == 0)
               return *p;
            p++;
            }
+     }
   return NULL;
 }
 
@@ -376,14 +386,14 @@ void cSVDRP::Reply(int Code, const char *fmt, ...)
         va_start(ap, fmt);
         char *buffer;
         vasprintf(&buffer, fmt, ap);
-        char *nl = strchr(buffer, '\n');
-        if (Code > 0 && nl && *(nl + 1)) // trailing newlines don't count!
-           Code = -Code;
-        char number[16];
-        sprintf(number, "%03d%c", abs(Code), Code < 0 ? '-' : ' ');
         const char *s = buffer;
         while (s && *s) {
               const char *n = strchr(s, '\n');
+              char cont = ' ';
+              if (Code < 0 || n && *(n + 1)) // trailing newlines don't count!
+                 cont = '-';
+              char number[16];
+              sprintf(number, "%03d%c", abs(Code), cont);
               if (!(Send(number) && Send(s, n ? n - s : -1) && Send("\r\n"))) {
                  Close();
                  break;
@@ -400,6 +410,32 @@ void cSVDRP::Reply(int Code, const char *fmt, ...)
      }
 }
 
+void cSVDRP::PrintHelpTopics(const char **hp)
+{
+  int NumPages = 0;
+  if (hp) {
+     while (*hp) {
+           NumPages++;
+           hp++;
+           }
+     hp -= NumPages;
+     }
+  const int TopicsPerLine = 5;
+  int x = 0;
+  for (int y = 0; (y * TopicsPerLine + x) < NumPages; y++) {
+      char buffer[TopicsPerLine * MAXHELPTOPIC + 5];
+      char *q = buffer;
+      q += sprintf(q, "    ");
+      for (x = 0; x < TopicsPerLine && (y * TopicsPerLine + x) < NumPages; x++) {
+          const char *topic = GetHelpTopic(hp[(y * TopicsPerLine + x)]);
+          if (topic)
+             q += sprintf(q, "%*s", -MAXHELPTOPIC, topic);
+          }
+      x = 0;
+      Reply(-214, buffer);
+      }
+}
+
 void cSVDRP::CmdCHAN(const char *Option)
 {
   if (*Option) {
@@ -626,7 +662,7 @@ void cSVDRP::CmdGRAB(const char *Option)
 void cSVDRP::CmdHELP(const char *Option)
 {
   if (*Option) {
-     const char *hp = GetHelpPage(Option);
+     const char *hp = GetHelpPage(Option, HelpPages);
      if (hp)
         Reply(214, hp);
      else {
@@ -637,24 +673,13 @@ void cSVDRP::CmdHELP(const char *Option)
   else {
      Reply(-214, "This is VDR version %s", VDRVERSION);
      Reply(-214, "Topics:");
-     const char **hp = HelpPages;
+     PrintHelpTopics(HelpPages);
-     int NumPages = 0;
+     cPlugin *plugin;
-     while (*hp) {
+     for (int i = 0; (plugin = cPluginManager::GetPlugin(i)) != NULL; i++) {
-           NumPages++;
+         const char **hp = plugin->SVDRPHelpPages();
-           hp++;
+         if (hp)
-           }
+            Reply(-214, "Plugin %s v%s - %s", plugin->Name(), plugin->Version(), plugin->Description());
-     const int TopicsPerLine = 5;
+         PrintHelpTopics(hp);
-     int x = 0;
-     for (int y = 0; (y * TopicsPerLine + x) < NumPages; y++) {
-         char buffer[TopicsPerLine * (MAXHELPTOPIC + 5)];
-         char *q = buffer;
-         for (x = 0; x < TopicsPerLine && (y * TopicsPerLine + x) < NumPages; x++) {
-             const char *topic = GetHelpTopic(HelpPages[(y * TopicsPerLine + x)]);
-             if (topic)
-                q += sprintf(q, "    %s", topic);
-             }
-         x = 0;
-         Reply(-214, buffer);
          }
      Reply(-214, "To report bugs in the implementation send email to");
      Reply(-214, "    vdr-bugs@cadsoft.de");
@@ -1042,6 +1067,71 @@ void cSVDRP::CmdNEXT(const char *Option)
      Reply(550, "No active timers");
 }
 
+void cSVDRP::CmdPLUG(const char *Option)
+{
+  if (*Option) {
+     char *opt = strdup(Option);
+     char *name = skipspace(opt);
+     char *option = name;
+     while (*option && !isspace(*option))
+        option++;
+     char c = *option;
+     *option = 0;
+     cPlugin *plugin = cPluginManager::GetPlugin(name);
+     if (plugin) {
+        if (c)
+           option = skipspace(++option);
+        char *cmd = option;
+        while (*option && !isspace(*option))
+              option++;
+        if (*option) {
+           *option++ = 0;
+           option = skipspace(option);
+           }
+        if (!*cmd || strcasecmp(cmd, "HELP") == 0) {
+           if (*cmd && *option) {
+              const char *hp = GetHelpPage(option, plugin->SVDRPHelpPages());
+              if (hp) {
+                 Reply(-214, hp);
+                 Reply(214, "End of HELP info");
+                 }
+              else
+                 Reply(504, "HELP topic \"%s\" for plugin \"%s\" unknown", option, plugin->Name());
+              }
+           else {
+              Reply(-214, "Plugin %s v%s - %s", plugin->Name(), plugin->Version(), plugin->Description());
+              const char **hp = plugin->SVDRPHelpPages();
+              if (hp) {
+                 Reply(-214, "SVDRP commands:");
+                 PrintHelpTopics(hp);
+                 Reply(214, "End of HELP info");
+                 }
+              else
+                 Reply(214, "This plugin has no SVDRP commands");
+              }
+           }
+        else {
+           int ReplyCode = 900;
+           cString s = plugin->SVDRPCommand(cmd, option, ReplyCode);
+           if (s)
+              Reply(abs(ReplyCode), *s);
+           else
+              Reply(500, "Command unrecognized: \"%s\"", cmd);
+           }
+        }
+     else
+        Reply(550, "Plugin \"%s\" not found (use PLUG for a list of plugins)", name);
+     free(opt);
+     }
+  else {
+     Reply(-214, "Available plugins:");
+     cPlugin *plugin;
+     for (int i = 0; (plugin = cPluginManager::GetPlugin(i)) != NULL; i++)
+         Reply(-214, "%s v%s - %s", plugin->Name(), plugin->Version(), plugin->Description());
+     Reply(214, "End of plugin list");
+     }
+}
+
 void cSVDRP::CmdPUTE(const char *Option)
 {
   delete PUTEhandler;
@@ -1167,6 +1257,7 @@ void cSVDRP::Execute(char *Cmd)
   else if (CMD("NEWC"))  CmdNEWC(s);
   else if (CMD("NEWT"))  CmdNEWT(s);
   else if (CMD("NEXT"))  CmdNEXT(s);
+  else if (CMD("PLUG"))  CmdPLUG(s);
   else if (CMD("PUTE"))  CmdPUTE(s);
   else if (CMD("SCAN"))  CmdSCAN(s);
   else if (CMD("STAT"))  CmdSTAT(s);

svdrp.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: svdrp.h 1.20 2004/01/17 15:41:52 kls Exp $
+ * $Id: svdrp.h 1.21 2005/08/27 12:37:49 kls Exp $
  */
 
 #ifndef __SVDRP_H
@@ -52,6 +52,7 @@ private:
   void Close(bool Timeout = false);
   bool Send(const char *s, int length = -1);
   void Reply(int Code, const char *fmt, ...);
+  void PrintHelpTopics(const char **hp);
   void CmdCHAN(const char *Option);
   void CmdCLRE(const char *Option);
   void CmdDELC(const char *Option);
@@ -72,6 +73,7 @@ private:
   void CmdNEWC(const char *Option);
   void CmdNEWT(const char *Option);
   void CmdNEXT(const char *Option);
+  void CmdPLUG(const char *Option);
   void CmdPUTE(const char *Option);
   void CmdSCAN(const char *Option);
   void CmdSTAT(const char *Option);

tools.c

@@ -4,13 +4,14 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.c 1.96 2005/08/06 09:53:21 kls Exp $
+ * $Id: tools.c 1.97 2005/08/27 14:43:55 kls Exp $
  */
 
 #include "tools.h"
 #include <ctype.h>
 #include <dirent.h>
 #include <errno.h>
+#include <stdarg.h>
 #include <stdlib.h>
 #include <sys/time.h>
 #include <sys/vfs.h>
@@ -530,6 +531,15 @@ cString &cString::operator=(const cString &String)
   return *this;
 }
 
+cString cString::sprintf(const char *fmt, ...)
+{
+  va_list ap;
+  va_start(ap, fmt);
+  char *buffer;
+  vasprintf(&buffer, fmt, ap);
+  return cString(buffer, true);
+}
+
 cString WeekDayName(int WeekDay)
 {
   char buffer[4];

tools.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.h 1.74 2005/08/21 14:06:38 kls Exp $
+ * $Id: tools.h 1.75 2005/08/27 14:40:08 kls Exp $
  */
 
 #ifndef __TOOLS_H
@@ -81,6 +81,7 @@ public:
   operator const char * () const { return s; } // for use in (const char *) context
   const char * operator*() const { return s; } // for use in (const void *) context (printf() etc.)
   cString &operator=(const cString &String);
+  static cString sprintf(const char *fmt, ...);
   };
 
 ssize_t safe_read(int filedes, void *buffer, size_t size);