[lcd4linux @ 2006-02-19 15:42:18 by reinelt]

file plugin from Chris Maj

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@640 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

7 files changed, 162 insertions, 13 deletions

diff --git a/Makefile.am b/Makefile.am
index dc86bb0..32ec063 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -93,6 +93,7 @@ plugin_cpuinfo.c              \
 plugin_diskstats.c            \
 plugin_dvb.c                  \
 plugin_exec.c                 \
+plugin_file.c                 \
 plugin_i2c_sensors.c          \
 plugin_imon.c                 \
 plugin_isdn.c                 \
diff --git a/Makefile.in b/Makefile.in
index a24c831..0922e78 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -104,7 +104,7 @@ lcd4linux_DEPENDENCIES = @DRIVERS@ @PLUGINS@
 lcd4linux_SOURCES =  lcd4linux.c                   cfg.c         cfg.h           debug.c       debug.h         drv.c         drv.h           evaluator.c   evaluator.h     hash.c        hash.h          layout.c      layout.h        pid.c         pid.h           timer.c       timer.h         thread.c      thread.h        udelay.c      udelay.h        qprintf.c     qprintf.h       rgb.c         rgb.h                                         widget.c      widget.h        widget_text.c widget_text.h   widget_bar.c  widget_bar.h    widget_icon.c widget_icon.h   widget_image.c widget_image.h widget_timer.c widget_timer.h widget_gpo.c  widget_gpo.h                                  plugin.c      plugin.h        plugin_cfg.c                  plugin_math.c                 plugin_string.c               plugin_test.c                 plugin_time.c
 
 
-EXTRA_lcd4linux_SOURCES =  drv_generic_text.c            drv_generic_text.h            drv_generic_graphic.c         drv_generic_graphic.h         drv_generic_gpio.c            drv_generic_gpio.h            drv_generic_serial.c          drv_generic_serial.h          drv_generic_parport.c         drv_generic_parport.h         drv_generic_i2c.c             drv_generic_i2c.h             drv_BeckmannEgle.c            drv_BWCT.c                    drv_Crystalfontz.c            drv_Curses.c                  drv_Cwlinux.c                 drv_G15.c                     drv_HD44780.c                 drv_Image.c                   drv_LCD2USB.c                 drv_LCDLinux.c                drv_LCDTerm.c                 drv_LPH7508.c                 drv_LUIse.c                   drv_M50530.c                  drv_MatrixOrbital.c           drv_MilfordInstruments.c      drv_Noritake.c                drv_NULL.c                    drv_RouterBoard.c             drv_Sample.c                  drv_serdisplib.c              drv_SimpleLCD.c               drv_T6963.c                   drv_Trefon.c                  drv_USBLCD.c                  drv_WincorNixdorf.c           drv_X11.c                                                   font_6x8.h                                                  lcd4linux_i2c.h                                             plugin_apm.c                  plugin_cpuinfo.c              plugin_diskstats.c            plugin_dvb.c                  plugin_exec.c                 plugin_i2c_sensors.c          plugin_imon.c                 plugin_isdn.c                 plugin_loadavg.c              plugin_meminfo.c              plugin_mysql.c                plugin_netdev.c               plugin_pop3.c                 plugin_ppp.c                  plugin_proc_stat.c            plugin_python.c               plugin_sample.c               plugin_seti.c                 plugin_statfs.c               plugin_uname.c                plugin_uptime.c               plugin_wireless.c             plugin_xmms.c
+EXTRA_lcd4linux_SOURCES =  drv_generic_text.c            drv_generic_text.h            drv_generic_graphic.c         drv_generic_graphic.h         drv_generic_gpio.c            drv_generic_gpio.h            drv_generic_serial.c          drv_generic_serial.h          drv_generic_parport.c         drv_generic_parport.h         drv_generic_i2c.c             drv_generic_i2c.h             drv_BeckmannEgle.c            drv_BWCT.c                    drv_Crystalfontz.c            drv_Curses.c                  drv_Cwlinux.c                 drv_G15.c                     drv_HD44780.c                 drv_Image.c                   drv_LCD2USB.c                 drv_LCDLinux.c                drv_LCDTerm.c                 drv_LPH7508.c                 drv_LUIse.c                   drv_M50530.c                  drv_MatrixOrbital.c           drv_MilfordInstruments.c      drv_Noritake.c                drv_NULL.c                    drv_RouterBoard.c             drv_Sample.c                  drv_serdisplib.c              drv_SimpleLCD.c               drv_T6963.c                   drv_Trefon.c                  drv_USBLCD.c                  drv_WincorNixdorf.c           drv_X11.c                                                   font_6x8.h                                                  lcd4linux_i2c.h                                             plugin_apm.c                  plugin_cpuinfo.c              plugin_diskstats.c            plugin_dvb.c                  plugin_exec.c                 plugin_file.c                 plugin_i2c_sensors.c          plugin_imon.c                 plugin_isdn.c                 plugin_loadavg.c              plugin_meminfo.c              plugin_mysql.c                plugin_netdev.c               plugin_pop3.c                 plugin_ppp.c                  plugin_proc_stat.c            plugin_python.c               plugin_sample.c               plugin_seti.c                 plugin_statfs.c               plugin_uname.c                plugin_uptime.c               plugin_wireless.c             plugin_xmms.c
 
 
 EXTRA_DIST =  lcd4linux.conf.sample         lcd4kde.conf                  lcd4linux.kdelnk              lcd4linux.xpm                 lcd4linux.lsm                 curses.m4                     AUTHORS                       CREDITS                       FAQ                           NEWS                          TODO                          README                        README.Drivers                README.Plugins                README.KDE                    plugin_sample.c
@@ -158,17 +158,18 @@ DEP_FILES =  .deps/cfg.P .deps/debug.P .deps/drv.P .deps/drv_BWCT.P \
 .deps/hash.P .deps/layout.P .deps/lcd4linux.P .deps/pid.P \
 .deps/plugin.P .deps/plugin_apm.P .deps/plugin_cfg.P \
 .deps/plugin_cpuinfo.P .deps/plugin_diskstats.P .deps/plugin_dvb.P \
-.deps/plugin_exec.P .deps/plugin_i2c_sensors.P .deps/plugin_imon.P \
-.deps/plugin_isdn.P .deps/plugin_loadavg.P .deps/plugin_math.P \
-.deps/plugin_meminfo.P .deps/plugin_mysql.P .deps/plugin_netdev.P \
-.deps/plugin_pop3.P .deps/plugin_ppp.P .deps/plugin_proc_stat.P \
-.deps/plugin_python.P .deps/plugin_sample.P .deps/plugin_seti.P \
-.deps/plugin_statfs.P .deps/plugin_string.P .deps/plugin_test.P \
-.deps/plugin_time.P .deps/plugin_uname.P .deps/plugin_uptime.P \
-.deps/plugin_wireless.P .deps/plugin_xmms.P .deps/qprintf.P .deps/rgb.P \
-.deps/thread.P .deps/timer.P .deps/udelay.P .deps/widget.P \
-.deps/widget_bar.P .deps/widget_gpo.P .deps/widget_icon.P \
-.deps/widget_image.P .deps/widget_text.P .deps/widget_timer.P
+.deps/plugin_exec.P .deps/plugin_file.P .deps/plugin_i2c_sensors.P \
+.deps/plugin_imon.P .deps/plugin_isdn.P .deps/plugin_loadavg.P \
+.deps/plugin_math.P .deps/plugin_meminfo.P .deps/plugin_mysql.P \
+.deps/plugin_netdev.P .deps/plugin_pop3.P .deps/plugin_ppp.P \
+.deps/plugin_proc_stat.P .deps/plugin_python.P .deps/plugin_sample.P \
+.deps/plugin_seti.P .deps/plugin_statfs.P .deps/plugin_string.P \
+.deps/plugin_test.P .deps/plugin_time.P .deps/plugin_uname.P \
+.deps/plugin_uptime.P .deps/plugin_wireless.P .deps/plugin_xmms.P \
+.deps/qprintf.P .deps/rgb.P .deps/thread.P .deps/timer.P .deps/udelay.P \
+.deps/widget.P .deps/widget_bar.P .deps/widget_gpo.P \
+.deps/widget_icon.P .deps/widget_image.P .deps/widget_text.P \
+.deps/widget_timer.P
 SOURCES = $(lcd4linux_SOURCES) $(EXTRA_lcd4linux_SOURCES)
 OBJECTS = $(lcd4linux_OBJECTS)
 
diff --git a/config.h.in b/config.h.in
index d8a48e7..c2c36c3 100644
--- a/config.h.in
+++ b/config.h.in
@@ -266,6 +266,9 @@
 /* exec plugin */
 #undef PLUGIN_EXEC
 
+/* file plugin */
+#undef PLUGIN_FILE
+
 /* i2c sensors plugin */
 #undef PLUGIN_I2C_SENSORS
 
diff --git a/configure b/configure
index 24a0305..e91a58a 100755
--- a/configure
+++ b/configure
@@ -6793,6 +6793,7 @@ echo "$as_me: error: run ./configure --with-plugins=..." >&2;}
          PLUGIN_DISKSTATS="yes"
          PLUGIN_DVB="yes"
          PLUGIN_EXEC="yes"
+         PLUGIN_FILE="yes"
          PLUGIN_I2C_SENSORS="yes"
          PLUGIN_IMON="yes"
          PLUGIN_ISDN="yes"
@@ -6827,6 +6828,9 @@ echo "$as_me: error: run ./configure --with-plugins=..." >&2;}
       exec)
          PLUGIN_EXEC=$val
          ;;
+      file)
+         PLUGIN_FILE=$val
+         ;;
       i2c_sensors)
          PLUGIN_I2C_SENSORS=$val
 	 ;;
@@ -7087,6 +7091,14 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 fi
+if test "$PLUGIN_FILE" = "yes"; then
+   PLUGINS="$PLUGINS plugin_file.o"
+
+cat >>confdefs.h <<\_ACEOF
+#define PLUGIN_FILE 1
+_ACEOF
+
+fi
 if test "$PLUGIN_I2C_SENSORS" = "yes"; then
    PLUGINS="$PLUGINS plugin_i2c_sensors.o"
 
diff --git a/plugin.c b/plugin.c
index 961b1fa..b68ede1 100644
--- a/plugin.c
+++ b/plugin.c
@@ -1,4 +1,4 @@
-/* $Id: plugin.c,v 1.39 2005/11/04 04:53:10 reinelt Exp $
+/* $Id: plugin.c,v 1.40 2006/02/19 15:42:19 reinelt Exp $
  *
  * plugin handler for the Evaluator
  *
@@ -23,6 +23,9 @@
  *
  *
  * $Log: plugin.c,v $
+ * Revision 1.40  2006/02/19 15:42:19  reinelt
+ * file plugin from Chris Maj
+ *
  * Revision 1.39  2005/11/04 04:53:10  reinelt
  * sample plugin activated
  *
@@ -227,6 +230,8 @@ int plugin_init_dvb(void);
 void plugin_exit_dvb(void);
 int plugin_init_exec(void);
 void plugin_exit_exec(void);
+int plugin_init_file(void);
+void plugin_exit_file(void);
 int plugin_init_i2c_sensors(void);
 void plugin_exit_i2c_sensors(void);
 int plugin_init_imon(void);
@@ -288,6 +293,9 @@ int plugin_init(void)
 #ifdef PLUGIN_EXEC
     plugin_init_exec();
 #endif
+#ifdef PLUGIN_FILE
+    plugin_init_file();
+#endif
 #ifdef PLUGIN_I2C_SENSORS
     plugin_init_i2c_sensors();
 #endif
@@ -364,6 +372,9 @@ void plugin_exit(void)
 #ifdef PLUGIN_EXEC
     plugin_exit_exec();
 #endif
+#ifdef PLUGIN_FILE
+    plugin_exit_file();
+#endif
 #ifdef PLUGIN_I2C_SENSORS
     plugin_exit_i2c_sensors();
 #endif
diff --git a/plugin_file.c b/plugin_file.c
new file mode 100644
index 0000000..24ac815
--- /dev/null
+++ b/plugin_file.c
@@ -0,0 +1,113 @@
+/* $Id: plugin_file.c,v 1.1 2006/02/19 15:42:19 reinelt Exp $
+ *
+ * plugin to perform simple file operations
+ *
+ * Copyright (C) 2006 Chris Maj <cmaj@freedomcorpse.com>
+ * Copyright (C) 2006 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * This file is part of LCD4Linux.
+ *
+ * LCD4Linux is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * LCD4Linux is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * $Log: plugin_file.c,v $
+ * Revision 1.1  2006/02/19 15:42:19  reinelt
+ * file plugin from Chris Maj
+ *
+ */
+
+/* 
+ * exported functions:
+ *
+ * int plugin_init_file (void)
+ *  adds various functions
+ *
+ */
+
+
+/* define the include files you need */
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+
+/* these should always be included */
+#include "debug.h"
+#include "plugin.h"
+
+#ifdef WITH_DMALLOC
+#include <dmalloc.h>
+#endif
+
+
+/* function 'readline' */
+/* takes two arguments, file name and line number */
+/* returns text of that line */
+
+static void my_readline(RESULT * result, RESULT * arg1, RESULT * arg2)
+{
+    char value[80], val2[80];
+    char *pos;
+    FILE *fp;
+    int reqline, i, size;
+
+    reqline = R2N(arg2);
+    fp = fopen(R2S(arg1), "r");
+    if (!fp) {
+	error("readline couldn't open file '%s'", R2S(arg1));
+    } else {
+	i = 0;
+	while (!feof(fp) && i < reqline) {
+	    fgets(val2, sizeof(val2), fp);
+	    size = strcspn(val2, "\n");
+	    strncpy(value, val2, size);
+	    value[size] = '\0';
+	    pos = strchr(val2, '\n');
+	    /* more than 80 chars, chew up rest of line */
+	    while (!pos) {
+		fgets(val2, sizeof(val2), fp);
+		pos = strchr(val2, '\n');
+	    }
+	    i++;
+	}
+	fclose(fp);
+	if (i < reqline) {
+	    error("readline requested line %d but file only had %d lines", reqline, i);
+	    value[0] = '\0';
+	}
+    }
+
+    /* store result */
+    SetResult(&result, R_STRING, &value);
+}
+
+/* plugin initialization */
+/* MUST NOT be declared 'static'! */
+int plugin_init_file(void)
+{
+
+    /* register all our cool functions */
+    /* the second parameter is the number of arguments */
+    /* -1 stands for variable argument list */
+    AddFunction("file::readline", 2, my_readline);
+
+    return 0;
+}
+
+void plugin_exit_file(void)
+{
+    /* free any allocated memory */
+    /* close filedescriptors */
+}
diff --git a/plugins.m4 b/plugins.m4
index 3d5dc7a..65f641b 100644
--- a/plugins.m4
+++ b/plugins.m4
@@ -54,6 +54,7 @@ for plugin in $plugins; do
          PLUGIN_DISKSTATS="yes"
          PLUGIN_DVB="yes"
          PLUGIN_EXEC="yes"
+         PLUGIN_FILE="yes"
          PLUGIN_I2C_SENSORS="yes"
          PLUGIN_IMON="yes"
          PLUGIN_ISDN="yes"
@@ -88,6 +89,9 @@ for plugin in $plugins; do
       exec)
          PLUGIN_EXEC=$val
          ;;
+      file)
+         PLUGIN_FILE=$val
+         ;;
       i2c_sensors)
          PLUGIN_I2C_SENSORS=$val
 	 ;;
@@ -174,6 +178,10 @@ if test "$PLUGIN_EXEC" = "yes"; then
    PLUGINS="$PLUGINS plugin_exec.o"
    AC_DEFINE(PLUGIN_EXEC,1,[exec plugin])
 fi
+if test "$PLUGIN_FILE" = "yes"; then
+   PLUGINS="$PLUGINS plugin_file.o"
+   AC_DEFINE(PLUGIN_FILE,1,[file plugin])
+fi
 if test "$PLUGIN_I2C_SENSORS" = "yes"; then
    PLUGINS="$PLUGINS plugin_i2c_sensors.o"
    AC_DEFINE(PLUGIN_I2C_SENSORS,1,[i2c sensors plugin])