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4c2e5973425406dbb4a545dfd2b2f3992aa262ed
lcdproc/server/client_functions.c
T
robijn 71056ec551 v0.5 kick-off
2001-12-30 00:15:25 +00:00

1538 lines
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/*
* client_functions.c
* This file is part of LCDd, the lcdproc server.
*
* This file is released under the GNU General Public License. Refer to the
* COPYING file distributed with this package.
*
* Copyright (c) 1999, William Ferrell, Scott Scriven
*
*
* This contains definitions for all the functions which clients can run.
* The functions here are to be called only from parse.c's interpreter.
*
* The client's available function set is defined here, as is the syntax
* for each command.
*
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include "shared/report.h"
#include "shared/sockets.h"
#include "drivers.h"
#include "main.h"
#include "render.h"
#include "clients.h"
#include "parse.h"
#include "screen.h"
#include "widget.h"
#include "client_functions.h"
int info_func (client * c, int argc, char **argv);
int sleep_func (client * c, int argc, char **argv);
client_function commands[] = {
{"test_func", test_func_func},
{"hello", hello_func},
{"client_set", client_set_func},
{"client_add_key", client_add_key_func},
{"client_del_key", client_del_key_func},
{"screen_add_key", screen_add_key_func},
{"screen_del_key", screen_del_key_func},
{"screen_add", screen_add_func},
{"screen_del", screen_del_func},
{"screen_set", screen_set_func},
{"widget_add", widget_add_func},
{"widget_del", widget_del_func},
{"widget_set", widget_set_func},
{"menu_add", menu_add_func},
{"menu_del", menu_del_func},
{"menu_set", menu_set_func},
{"menu_add_item", menu_add_item_func},
{"menu_del_item", menu_del_item_func},
{"menu_set_item", menu_set_item_func},
/* Misc stuff...*/
{"backlight", backlight_func},
{"output", output_func},
{"noop", noop_func},
{"info", info_func},
{"sleep", sleep_func},
{NULL, NULL},
};
/* Remember: argc counts all arguments, including the command name;
* so it will actually be one more than the number of arguments given
* to the command...*/
#define NoArguments (argc == 1)
#define AnyArguments (argc != 1)
#define MoreArgumentsThan(a) (argc > (a))
/* TODO: Maybe more error-checking for "->"'s?*/
/***************************************************************
* Debugging only.. prints out a list of arguments it receives
*/
int
test_func_func (client * c, int argc, char **argv)
{
int i;
char str[256];
for (i = 0; i < argc; i++) {
snprintf (str, sizeof(str), "test_func_func: %i -> %s\n", i, argv[i]);
report (RPT_INFO, str);
sock_send_string (c->sock, str);
}
return 0;
}
/***************************************************************
* The client must say "hello" before doing anything else.
*
* It returns a string of info about the server to the client
*
* usage: hello
*/
int
hello_func (client * c, int argc, char **argv)
{
char str[256];
/* TODO: Give *real* info about the server/lcd...*/
if (AnyArguments) {
sock_send_string (c->sock, "huh? extra parameters ignored\n");
}
debug(RPT_INFO, "Hello!");
memset(str, '\0', sizeof(str));
snprintf (str, sizeof(str), "connect LCDproc %s protocol %s lcd wid %i hgt %i cellwid %i cellhgt %i\n",
version, protocol_version, display_props->width, display_props->height, display_props->cellwidth, display_props->cellheight);
/* lcdproc (client) depends on the above format...
* snprintf (str, sizeof(str), "connect LCDproc %s protocol %s LCD %ix%i with cells %ix%i\n",
* version, protocol_version, lcd.wid, lcd.hgt, lcd.cellwid, lcd.cellhgt);
*/
sock_send_string (c->sock, str);
if (c->data)
c->data->ack = 1;
return 0;
}
/***************************************************
* sets info about the client, such as its name
*
* usage: client_set -name <id>
*/
int
client_set_func (client * c, int argc, char **argv)
{
int i;
char str[16], buf[80];
memset(str, '\0', sizeof(str));
if (!c->data->ack)
return 1;
if (argc != 3) {
switch (argc) {
case 1:
sock_send_string (c->sock, "huh? usage: client_set -name <name>\n");
break;
case 2:
sock_send_string (c->sock, "huh? Not enough parameters\n");
break;
default:
sock_send_string (c->sock, "huh? Too many parameters\n");
break;
}
return 0;
}
i = 1;
do {
char *p;
/* This bit of code means that "-name" is the same as "name"...*/
p = argv[i];
if (*p == '-')
p++;
/* Handle the "name" parameter*/
if (strcmp (p, "name") == 0) {
i++;
if (argv[i] == '\0') {
snprintf (buf, sizeof(buf), "huh? internal error: no parameter #%d\n", i);
sock_send_string (c->sock, buf);
continue;
}
if (strlen(argv[i]) > sizeof(str) -1) {
sock_send_string (c->sock, "huh? name too long\n");
} else {
strncpy(str, argv[i], sizeof(str) - 1);
debug(RPT_DEBUG, "client_set: name=\"%s\"", argv[i]);
/* set the name...*/
if (c->data->name)
free (c->data->name);
if ((c->data->name = strdup (str)) == NULL) {
sock_send_string(c->sock, "huh? error allocating memory!\n");
} else {
sock_send_string(c->sock, "success\n");
i++; /* bypass argument (name string)*/
}
}
} else {
snprintf (buf, sizeof(buf), "huh? invalid parameter (%s)\n", p);
sock_send_string (c->sock, buf);
}
} while (++i < argc);
return 0;
}
/******************************************************************
* Tells the server the client would like to accept keypresses
* of a particular type
*
* usage: client_add_key <keylist>
*/
int
client_add_key_func (client * c, int argc, char **argv)
{
char * keys ;
if (!c->data->ack)
return 1;
if (argc != 2) {
switch (argc) {
case 1:
sock_send_string (c->sock, "huh? usage: client_add_key <keylist>\n");
break;
default:
sock_send_string (c->sock, "huh? Too many parameters...\n");
break;
}
return 0;
}
keys = argv[1];
debug(RPT_DEBUG, "client_add_key: current client will handle key(s) %s", keys);
if (!c->data->client_keys) {
/* No keys list, create a new one*/
c->data->client_keys = strdup( keys );
} else {
/* Add supplied keys to existing list
* NOTE: There could be duplicates in the resulting list
* That's OK, it's the existence of the key in the list
* that's important. We'll be more careful in the delete
* key function.
*/
char * new ;
int new_len = strlen(c->data->client_keys) + strlen(keys) + 1 ;
new = realloc( c->data->client_keys, new_len );
if( new ) {
c->data->client_keys = new ;
strcat( new, keys );
} else {
sock_send_string(c->sock, "huh? could not allocate memory for new keys\n");
return 0;
}
}
if (c->data->client_keys) {
sock_send_string(c->sock, "success\n");
} else {
sock_send_string(c->sock, "huh? failed\n");
}
return 0;
}
/*********************************************************************
+ Tells the server the client would NOT like to accept keypresses
* of a particular type
*
* usage: client_del_key <keylist>
*/
int
client_del_key_func (client * c, int argc, char **argv)
{
char * keys ;
if (!c->data->ack)
return 1;
if (argc != 2) {
if (argc == 1) {
sock_send_string (c->sock, "huh? usage: client_del_key <keylist>\n");
return 0;
} else {
sock_send_string (c->sock, "huh? Too many parameters...\n");
return 0;
}
}
keys = argv[1] ;
debug(RPT_DEBUG, "client_del_key: Deleting key(s) %s from client_keys", keys);
if (c->data->client_keys) {
/* Client has keys, remove keys from the list
* NOTE: We let malloc/realloc remember the length
* of the allocated storage. If keys are later
* added, realloc (in add_key above) will make
* sure there is enough space at c->data->client_keys
*/
char * from ;
char * to ;
to = from = c->data->client_keys ;
while( *from ) {
/* Is this key to be deleted from the list?*/
if( strchr( keys, *from ) ) {
/* Yes, skip it*/
++from ;
} else {
/* No, save it*/
*to++ = *from++ ;
}
}
}
sock_send_string(c->sock, "success\n");
return 0;
}
/**********************************************************************
* Tells the server the client would like to accept keypresses
* of a particular type when the given screen is active on the display
*
* screen_add_key <screenid> <keylist>
*/
int
screen_add_key_func (client * c, int argc, char **argv)
{
/*widget * w ;*/ /* Keys are stored on a WID_KEYS widget */
screen * s ; /* Attached to a specific screen */
char * id ; /* Screen ID */
char * keys ; /* Keys wanted */
if (!c->data->ack)
return 1;
if (argc != 3) {
switch (argc) {
case 1:
sock_send_string (c->sock, "huh? usage: screen_add_key <screenid> <keylist>\n");
break;
case 2:
sock_send_string (c->sock, "huh? You must specify a key list\n");
break;
default:
sock_send_string (c->sock, "huh? Too many parameters...\n");
break;
}
return 0;
}
id = argv[1];
keys = argv[2];
debug(RPT_DEBUG, "screen_add_key: Adding key(s) %s to screen %s", keys, id);
/* Find the screen*/
s = screen_find (c, id);
if (!s) {
sock_send_string (c->sock, "huh? Invalid screen id\n");
return 0;
}
/* Save the keys*/
if (!s->keys) {
/* Save supplied key list*/
s->keys = strdup( keys );
} else {
/* Add supplied keys to existing list
* NOTE: There could be duplicates in the resulting list
* That's OK, it's the existence of the key in the list
* that's important. We'll be more careful in the delete
* key function.
*/
char * new ;
new = realloc( s->keys, strlen(s->keys) + strlen(keys) +1 );
if( new ) {
s->keys = new ;
strcat( new, keys );
} else {
sock_send_string(c->sock, "huh? could not allocate memory for new keys\n");
return 0;
}
}
if (!s->keys) {
sock_send_string(c->sock, "huh? failed\n");
} else
sock_send_string(c->sock, "success\n");
return 0;
}
/*************************************************************************
* Tells the server the client would NOT like to accept keypresses
* of a particular type when the given screen is active on the display
*
* usage: screen_del_key <screenid> <keylist>
*/
int
screen_del_key_func (client * c, int argc, char **argv)
{
/*widget * w ;*/ /* Keys are stored on a WID_KEYS widget */
screen * s ; /* Attached to a specific screen */
char * id ; /* Screen ID */
char * keys ; /* Keys wanted */
if (!c->data->ack)
return 1;
if (argc != 3) {
switch (argc) {
case 1:
sock_send_string (c->sock, "huh? usage: screen_del_key <screenid> <keylist>\n");
break;
case 2:
sock_send_string (c->sock, "huh? You must specify a key list\n");
break;
default:
sock_send_string (c->sock, "huh? Too many parameters\n");
break;
}
return 0;
}
id = argv[1] ;
keys = argv[2] ;
debug(RPT_DEBUG, "screen_del_key: Deleting key(s) %s from screen %s", keys, id);
/* Find the screen*/
s = screen_find (c, id);
if (!s) {
sock_send_string (c->sock, "huh? Invalid screen id\n");
return 0;
}
/* Do we have keys?*/
if (s->keys) {
/* Have keys, remove keys from the list
* NOTE: We let malloc/realloc remember the length
* of the allocated storage. If keys are later
* added, realloc (in add_key above) will make
* sure there is enough space at s->keys
*/
char * from ;
char * to ;
to = from = s->keys ;
while( *from ) {
/* Is this key to be deleted from the list?*/
if( strchr( keys, *from ) ) {
/* Yes, skip it*/
++from ;
} else {
/* No, save it*/
*to++ = *from++ ;
}
}
to = '\0'; /* terminates the new keys string...*/
}
sock_send_string(c->sock, "success\n");
return 0;
}
/***************************************************************
* Tells the server the client has another screen to offer
*
* usage: screen_add <id>
*/
int
screen_add_func (client * c, int argc, char **argv)
{
int err = 0;
char scr[128];
if (!c->data->ack)
return 1;
if (argc != 2) {
switch (argc) {
case 1:
sock_send_string (c->sock, "huh? usage: screen_add <screenid>\n");
break;
default:
sock_send_string (c->sock, "huh? Too many parameters...\n");
break;
}
return 0;
}
debug(RPT_DEBUG, "screen_add: Adding screen %s", argv[1]);
memset(scr, '\0', sizeof(scr));
strncpy(scr, argv[1], sizeof(scr) - 1);
err = screen_add (c, scr);
if (err == 0)
sock_send_string(c->sock, "success\n");
else if (err < 0) {
report(RPT_WARNING, "screen_add_func: Error adding screen");
sock_send_string (c->sock, "huh? failed to add screen id#\n");
} else
sock_send_string (c->sock, "huh? You already have a screen with that id#\n");
report(RPT_NOTICE, "added a screen (%s) to the display", scr);
return 0;
}
/****************************************************************
* Client requests that the server forget about a screen
*
* usage: screen_del <screenid>
*/
int
screen_del_func (client * c, int argc, char **argv)
{
int err = 0;
char scr[128];
if (!c->data->ack)
return 1;
if (argc != 2) {
if (NoArguments)
sock_send_string (c->sock, "huh? usage: screen_del <screenid>\n");
else
sock_send_string (c->sock, "huh? Too many parameters...\n");
return 0;
}
debug (RPT_DEBUG, "screen_del: Deleting screen %s", argv[1]);
/* Enforce bounds limits on argv[1]*/
memset(scr, '\0', sizeof(scr));
strncpy(scr, argv[1], sizeof(scr) - 1);
err = screen_remove (c, scr);
if ( err == 0 )
sock_send_string(c->sock, "success\n");
else if (err < 0) {
report(RPT_WARNING, "screen_del_func: Error removing screen");
sock_send_string(c->sock, "huh? failed to remove screen\n");
} else
sock_send_string (c->sock, "huh? You don't have a screen with that id#\n");
report(RPT_NOTICE, "removed a screen (%s) from the display", scr);
return 0;
}
/***************************************************************
* Configures info about a particular screen, such as its
* name, priority, or duration
*
* usage: screen_set <id> [ -priority <int> ] [ -name <name> ] [ -duration <int> ]
* [ -wid <width> ] [ -hgt <height> ] [ -heartbeat <type> ]
*/
int
screen_set_func (client * c, int argc, char **argv)
{
int i;
int number;
char *id;
screen *s;
if (!c->data->ack)
return 1;
if (NoArguments) {
sock_send_string (c->sock, "huh? usage: screen_set <id> [ -priority <int> ] [ -name <name> ] [ -duration <int> ] [ -wid <width> ] [ -hgt <height> ] [ -heartbeat <type> ]\n");
return 0;
} else if (argc == 2) {
sock_send_string (c->sock, "huh? What do you want to set?\n");
return 0;
}
id = argv[1];
s = screen_find (c, id);
if (!s) {
sock_send_string (c->sock, "huh? Invalid screen id\n");
return 0;
}
/* Handle the rest of the parameters*/
for (i = 2; i < argc; i++) {
char *p;
/* The following code allows us to use p for comparisions,
* ignoring a (valid) single leading '-' - reduces string comparisons
* by half.
*/
p = argv[i];
if (*p == '-')
p++;
/* Handle the "name" parameter*/
if (strcmp (p, "name") == 0) {
if (argc > i + 1) {
i++;
debug (RPT_DEBUG, "screen_set: name=\"%s\"", argv[i]);
/* set the name...*/
if (s->name)
free (s->name);
s->name = strdup (argv[i]);
sock_send_string(c->sock, "success\n");
} else {
sock_send_string (c->sock, "huh? -name requires a parameter\n");
}
}
/* Handle the "priority" parameter*/
else if (strcmp (p, "priority") == 0) {
if (argc > i + 1) {
i++;
debug (RPT_DEBUG, "screen_set: priority=\"%s\"", argv[i]);
/* set the priority...*/
number = atoi (argv[i]);
if (number > 0)
s->priority = number;
sock_send_string(c->sock, "success\n");
} else {
sock_send_string (c->sock, "huh? -priority requires a parameter\n");
}
}
/* Handle the "duration" parameter*/
else if (strcmp (p, "duration") == 0) {
if (argc > i + 1) {
i++;
debug (RPT_DEBUG, "screen_set: duration=\"%s\"", argv[i]);
/* set the duration...*/
number = atoi (argv[i]);
if (number > 0)
s->duration = number;
sock_send_string(c->sock, "success\n");
} else {
sock_send_string (c->sock, "huh? -duration requires a parameter\n");
}
}
/* Handle the "heartbeat" parameter*/
else if (strcmp (p, "heartbeat") == 0) {
if (argc > i + 1) {
i++;
debug (RPT_DEBUG, "screen_set: heartbeat=\"%s\"", argv[i]);
/* set the heartbeat type...*/
if (0 == strcmp (argv[i], "on"))
s->heartbeat = HEART_ON;
if (0 == strcmp (argv[i], "heart"))
s->heartbeat = HEART_ON;
if (0 == strcmp (argv[i], "normal"))
s->heartbeat = HEART_ON;
if (0 == strcmp (argv[i], "default"))
s->heartbeat = HEART_ON;
if (0 == strcmp (argv[i], "off"))
s->heartbeat = HEART_OFF;
if (0 == strcmp (argv[i], "none"))
s->heartbeat = HEART_OFF;
if (0 == strcmp (argv[i], "slash"))
s->heartbeat = HEART_OPEN;
sock_send_string(c->sock, "success\n");
} else {
sock_send_string (c->sock, "huh? -heartbeat requires a parameter\n");
}
}
/* Handle the "wid" parameter*/
else if (strcmp (p, "wid") == 0) {
if (argc > i + 1) {
i++;
debug (RPT_DEBUG, "screen_set: wid=\"%s\"", argv[i]);
/* set the duration...*/
number = atoi (argv[i]);
if (number > 0)
s->wid = number;
sock_send_string(c->sock, "success\n");
} else {
sock_send_string (c->sock, "huh? -wid requires a parameter\n");
}
}
/* Handle the "hgt" parameter*/
else if (strcmp (p, "hgt") == 0) {
if (argc > i + 1) {
i++;
debug (RPT_DEBUG, "screen_set: hgt=\"%s\"", argv[i]);
/* set the duration...*/
number = atoi (argv[i]);
if (number > 0)
s->hgt = number;
sock_send_string(c->sock, "success\n");
} else {
sock_send_string (c->sock, "huh? -hgt requires a parameter\n");
}
}
/* Handle the "timeout" parameter*/
else if (strcmp (p, "timeout") == 0) {
if (argc > i + 1) {
i++;
debug (RPT_DEBUG, "screen_set: timeout=\"%s\"", argv[i]);
/* set the duration...*/
number = atoi (argv[i]);
/* Add the timeout value (count of TIME_UNITS)
* to struct, TIME_UNIT is 1/8th of a second
*/
if (number > 0) {
s->timeout = number;
report(RPT_NOTICE, "Timeout set.");
}
sock_send_string(c->sock, "success\n");
} else {
sock_send_string (c->sock, "huh? -timeout requires a parameter\n");
}
}
/* Handle the backlight parameter*/
else if (strcmp (argv[i], "backlight") == 0) {
if (argc > i + 1) {
i++;
debug (RPT_DEBUG, "screen_set: backlight=\"%s\"", argv[i]);
/* set the backlight status based on what the client has set*/
switch(c->backlight_state) {
case BACKLIGHT_OPEN:
if (strcmp ("on", argv[i]) == 0)
s->backlight_state = BACKLIGHT_ON;
if (strcmp ("off", argv[i]) == 0)
s->backlight_state = BACKLIGHT_OFF;
if (strcmp ("toggle", argv[i]) == 0) {
if (s->backlight_state == BACKLIGHT_ON)
s->backlight_state = BACKLIGHT_OFF;
else if (s-backlight_state == BACKLIGHT_OFF)
s->backlight_state = BACKLIGHT_ON;
}
if (strcmp ("blink", argv[i]) == 0)
s->backlight_state |= BACKLIGHT_BLINK;
if (strcmp ("flash", argv[i]) == 0)
s->backlight_state |= BACKLIGHT_FLASH;
break;
default:
/*If the backlight is not OPEN then inherit its state*/
s->backlight_state = c->backlight_state;
break;
}
sock_send_string(c->sock, "success\n");
} else {
sock_send_string (c->sock, "huh? -backlight requires a parameter\n");
}
} else sock_send_string (c->sock, "huh? invalid parameter\n");
}/* done checking argv*/
return 0;
}
/*************************************************************************
* Adds a widget to a screen, but doesn't give it a value
*
* usage: widget_add <screenid> <widgetid> <widgettype> [ -in <id> ]
*/
int
widget_add_func (client * c, int argc, char **argv)
{
int err;
char *type;
char *sid;
char *wid;
char *in = NULL;
screen *s;
if (!c->data->ack)
return 1;
if ((argc < 4) || (argc > 6)) {
switch (argc) {
case 1:
sock_send_string (c->sock, "huh? usage: widget_add <screenid> <widgetid> <widgettype> [ -in <id> ]\n");
break;
case 2:
sock_send_string (c->sock, "huh? Widget ID and Widget Type not specified!\n");
break;
case 3:
sock_send_string (c->sock, "huh? Widget Type not specified!\n");
break;
default:
sock_send_string (c->sock, "huh? Too many parameters\n");
break;
}
return 0;
}
sid = argv[1];
wid = argv[2];
s = screen_find (c, sid);
if (!s) {
sock_send_string (c->sock, "huh? Invalid screen id\n");
return 0;
}
type = argv[3];
/* Check for additional flags...*/
if (argc > 4) {
char *p;
p = argv[4];
if (*p == '-')
p++;
/* Handle the "in" flag to place widgets in a container...*/
if (strcmp (p, "in")) {
if (argc < 6) {
sock_send_string (c->sock, "huh? Specify a frame to place widget in\n");
return 0;
}
in = argv[5];
}
}
/* Add the widget and set its type...*/
err = widget_add (s, wid, type, in, c->sock);
if (err == 0)
sock_send_string(c->sock, "success\n");
else {
report(RPT_WARNING, "widget_add_func: Error adding widget");
sock_send_string(c->sock, "huh? failed\n");
}
return 0;
}
/*******************************************************************
* Removes a widget from a screen, and forgets about it
*
* usage: widget_del <screenid> <widgetid>
*/
int
widget_del_func (client * c, int argc, char **argv)
{
int err = 0;
char *sid;
char *wid;
screen *s;
if (!c->data->ack)
return 1;
if (argc != 3) {
switch (argc) {
case 1:
sock_send_string (c->sock, "huh? usage: widget_del <screenid> <widgetid>\n");
break;
case 2:
sock_send_string (c->sock, "huh? Specify a widget #id\n");
break;
default:
sock_send_string (c->sock, "huh? Too many parameters...\n");
break;
}
return 0;
}
sid = argv[1];
wid = argv[2];
debug (RPT_DEBUG, "screen_del: Deleting widget %s.%s", sid, wid);
s = screen_find (c, sid);
if (!s) {
sock_send_string (c->sock, "huh? Invalid screen id\n");
}
err = widget_remove (s, wid, c->sock);
if (err == 0)
sock_send_string(c->sock, "success\n");
else {
report( RPT_WARNING, "widget_del_func: Error removing widget");
sock_send_string(c->sock, "huh? failed\n");
}
return 0;
}
/********************************************************************
* Configures information about a widget, such as its size, shape,
* contents, position, speed, etc...
*
* Ack! This is long!
*
* widget_set <screenid> <widgetid> <widget-SPECIFIC-data>
*/
int
widget_set_func (client * c, int argc, char **argv)
{
int i;
int x, y;
int left, top, right, bottom;
int length, direction;
int width, height;
int speed;
char *sid, *wid;
screen *s;
widget *w;
if (!c->data->ack)
return 1;
/* If there weren't enough parameters...
* We can't test for too many, since each widget may have a
* different number - plus, if the argument count is wrong, what ELSE
* could be wrong...?
*/
if (argc < 4) {
switch (argc) {
case 1:
sock_send_string (c->sock, "huh? usage: widget_set <screenid> <widgetid> <widget-SPECIFIC-data>\n");
break;
case 2:
sock_send_string (c->sock, "huh? You must specify a widget id\n");
break;
case 3:
sock_send_string (c->sock, "huh? You must send some widget data\n");
break;
}
return 0;
}
sid = argv[1];
wid = argv[2];
s = screen_find (c, sid);
if (!s) {
sock_send_string (c->sock, "huh? Invalid screen id\n");
return 0;
}
w = widget_find (s, wid);
if (!w) {
sock_send_string (c->sock, "huh? Invalid widget id\n");
/* Client Debugging...*/
{
int i;
report( RPT_WARNING, "huh? Invalid widget id (%s)", wid);
for (i = 0; i < argc; i++)
report( RPT_WARNING, " %.40s ", argv[i]);
}
return 0;
}
/* FIXME? Shouldn't this be handled in widget.c?*/
i = 3;
switch (w->type) {
case WID_STRING: /* String takes "x y text"*/
if (argc != i + 3)
sock_send_string (c->sock, "huh? Wrong number of arguments\n");
else {
if ((!isdigit ((unsigned int) argv[i][0])) ||
(!isdigit ((unsigned int) argv[i + 1][0]))) {
sock_send_string (c->sock, "huh? Invalid coordinates\n");
} else /* Set all the data...*/
{
x = atoi (argv[i]);
y = atoi (argv[i + 1]);
w->x = x;
w->y = y;
if (w->text)
free (w->text);
w->text = strdup (argv[i + 2]);
if (!w->text) {
report( RPT_WARNING, "widget_set_func: Error allocating string");
return -1;
}
debug (RPT_DEBUG, "Widget %s set to %s", wid, w->text);
sock_send_string(c->sock, "success\n");
}
}
break;
case WID_HBAR: /* Hbar takes "x y length"*/
if (argc != i + 3)
sock_send_string (c->sock, "huh? Wrong number of arguments\n");
else {
if ((!isdigit ((unsigned int) argv[i][0])) ||
(!isdigit ((unsigned int) argv[i + 1][0]))) {
sock_send_string (c->sock, "huh? Invalid coordinates\n");
} else {
x = atoi (argv[i]);
y = atoi (argv[i + 1]);
length = atoi (argv[i + 2]);
w->x = x;
w->y = y;
w->length = length;
}
debug (RPT_DEBUG, "Widget %s set to %i", wid, w->length);
sock_send_string(c->sock, "success\n");
}
break;
case WID_VBAR: /* Vbar takes "x y length"*/
if (argc != i + 3)
sock_send_string (c->sock, "huh? Wrong number of arguments\n");
else {
if ((!isdigit ((unsigned int) argv[i][0])) ||
(!isdigit ((unsigned int) argv[i + 1][0]))) {
sock_send_string (c->sock, "huh? Invalid coordinates\n");
} else {
x = atoi (argv[i]);
y = atoi (argv[i + 1]);
length = atoi (argv[i + 2]);
w->x = x;
w->y = y;
w->length = length;
}
debug (RPT_DEBUG, "Widget %s set to %i", wid, w->length);
sock_send_string(c->sock, "success\n");
}
break;
case WID_ICON: /* Icon takes "x y binary_data"*/
if (argc != i + 3)
sock_send_string (c->sock, "huh? Wrong number of arguments\n");
else {
if ((!isdigit ((unsigned int) argv[i][0])) ||
(!isdigit ((unsigned int) argv[i + 1][0]))) {
sock_send_string (c->sock, "huh? Invalid coordinates\n");
} else {
x = atoi (argv[i]);
y = atoi (argv[i + 1]);
w->x = x;
w->y = y;
/* TODO: Parse binary data and copy it to widget's data...*/
}
}
sock_send_string (c->sock, "huh? Widget type not yet implemented\n");
break;
case WID_TITLE: /* title takes "text"*/
if (argc != i + 1)
sock_send_string (c->sock, "huh? Wrong number of arguments\n");
else {
if (w->text)
free (w->text);
w->text = strdup (argv[i]);
if (!w->text) {
report( RPT_WARNING, "widget_set_func: Error allocating string");
return -1;
}
debug (RPT_DEBUG, "Widget %s set to %s", wid, w->text);
sock_send_string(c->sock, "success\n");
}
break;
case WID_SCROLLER: /* Scroller takes "left top right bottom direction speed text"*/
if (argc != i + 7) {
sock_send_string (c->sock, "huh? Wrong number of arguments\n");
} else {
if ((!isdigit ((unsigned int) argv[i][0])) ||
(!isdigit ((unsigned int) argv[i + 1][0])) ||
(!isdigit ((unsigned int) argv[i + 2][0])) ||
(!isdigit ((unsigned int) argv[i + 3][0]))) {
sock_send_string (c->sock, "huh? Invalid coordinates\n");
} else {
left = atoi (argv[i]);
/*debug("left: %d",left);*/
top = atoi (argv[i + 1]);
/*debug("top: %d",top);*/
right = atoi (argv[i + 2]);
/*debug("right: %d",right);*/
bottom = atoi (argv[i + 3]);
/*debug("bottom: %d",bottom);*/
direction = (int) (argv[i + 4][0]);
/*debug("dir: %c",(char)direction);*/
speed = atoi (argv[i + 5]);
/*debug("speed: %d",speed);*/
/* Direction must be v or h*/
if (((char) direction != 'h') && ((char) direction != 'v')) {
sock_send_string (c->sock, "huh? Invalid direction\n");
} else {
w->left = left;
w->top = top;
w->right = right;
w->bottom = bottom;
w->length = direction;
w->speed = speed;
if (w->text)
free (w->text);
w->text = strdup (argv[i + 6]);
if (!w->text) {
sock_send_string(c->sock, "huh? out of memory\n");
report( RPT_WARNING, "widget_set_func: Error allocating string");
return -1;
}
debug (RPT_DEBUG, "Widget %s set to %s", wid, w->text);
sock_send_string(c->sock, "success\n");
}
}
}
break;
case WID_FRAME: /* Frame takes "left top right bottom wid hgt direction speed"*/
if (argc != i + 8) {
sock_send_string (c->sock, "huh? Wrong number of arguments\n");
} else {
if ((!isdigit ((unsigned int) argv[i][0])) ||
(!isdigit ((unsigned int) argv[i + 1][0])) ||
(!isdigit ((unsigned int) argv[i + 2][0])) ||
(!isdigit ((unsigned int) argv[i + 3][0])) ||
(!isdigit ((unsigned int) argv[i + 4][0])) ||
(!isdigit ((unsigned int) argv[i + 5][0]))) {
sock_send_string (c->sock, "huh? Invalid coordinates\n");
} else {
left = atoi (argv[i]);
/*debug("left: %d",left);*/
top = atoi (argv[i + 1]);
/*debug("top: %d",top);*/
right = atoi (argv[i + 2]);
/*debug("right: %d",right);*/
bottom = atoi (argv[i + 3]);
/*debug("bottom: %d",bottom);*/
width = atoi (argv[i + 4]);
/*debug("right: %d",right);*/
height = atoi (argv[i + 5]);
/*debug("bottom: %d",bottom);*/
direction = (int) (argv[i + 6][0]);
/*debug("dir: %c",(char)direction);*/
speed = atoi (argv[i + 7]);
/*debug("speed: %d",speed);*/
/* Direction must be v or h*/
if (((char) direction != 'h') && ((char) direction != 'v')) {
sock_send_string (c->sock, "huh? Invalid direction\n");
} else {
w->left = left;
w->top = top;
w->right = right;
w->bottom = bottom;
w->wid = width;
w->hgt = height;
w->length = direction;
w->speed = speed;
debug (RPT_DEBUG, "Widget %s set to (%i,%i)-(%i,%i) %ix%i", wid, left, top, right, bottom, width, height);
sock_send_string(c->sock, "success\n");
}
}
}
break;
case WID_NUM: /* Num takes "x num"*/
if (argc != i + 2)
sock_send_string (c->sock, "huh? Wrong number of arguments\n");
else {
if (!isdigit ((unsigned int) argv[i][0])) {
sock_send_string (c->sock, "huh? Invalid coordinates\n");
} else if (!isdigit ((unsigned int) argv[i + 1][0])) {
sock_send_string (c->sock, "huh? Invalid number\n");
} else {
x = atoi (argv[i]);
y = atoi (argv[i + 1]);
w->x = x;
w->y = y;
}
debug (RPT_DEBUG, "Widget %s set to %i", wid, w->y);
sock_send_string(c->sock, "success\n");
}
break;
case WID_NONE:
default:
sock_send_string (c->sock, "huh? Widget has no type\n");
break;
}
return 0;
}
/*************************************************************
* Adds a menu to the client; handled by the server...
*
* usage: menu_add ...?
*/
int
menu_add_func (client * c, int argc, char **argv)
{
if (!c->data->ack)
return 1;
sock_send_string (c->sock, "huh? Not implemented yet.\n");
return 0;
}
/****************************************************************
* Removes a client's menu and all contents from the server
*
* usage: menu_del ...?
*/
int
menu_del_func (client * c, int argc, char **argv)
{
if (!c->data->ack)
return 1;
sock_send_string (c->sock, "huh? Not implemented yet.\n");
return 0;
}
/***********************************************************************
* Sets info about a menu, but not its items
*
* For example, should the menu be top-level, or buried somewhere?
*
* usage: menu_set ...?
*/
int
menu_set_func (client * c, int argc, char **argv)
{
if (!c->data->ack)
return 1;
sock_send_string (c->sock, "huh? Not implemented yet.\n");
return 0;
}
/*************************************************************************
* Adds an item to a menu
*
* usage: menu_add_item ...?
*/
int
menu_add_item_func (client * c, int argc, char **argv)
{
if (!c->data->ack)
return 1;
sock_send_string (c->sock, "huh? Not implemented yet.\n");
return 0;
}
/*************************************************************************
* Deletes an item from a menu
*
+ usage: menu_del_item ...?
*/
int
menu_del_item_func (client * c, int argc, char **argv)
{
if (!c->data->ack)
return 1;
sock_send_string (c->sock, "huh? Not implemented yet.\n");
return 0;
}
/**************************************************************************
* Sets the info about a menu item
*
* For example, text displayed, widget type, value, etc...
*
* usage: menu_set_item ...?
*/
int
menu_set_item_func (client * c, int argc, char **argv)
{
if (!c->data->ack)
return 1;
sock_send_string (c->sock, "huh? Not implemented yet.\n");
return 0;
}
/***************************************************************************
* Toggles the backlight, if enabled.
*
* usage: backlight <on|off|toggle|blink|flash>
*/
int
backlight_func (client * c, int argc, char **argv)
{
if (!c->data->ack)
return 1;
if (argc != 2) {
switch (argc) {
case 1:
sock_send_string (c->sock, "huh? usage: backlight <on|off|toggle|blink|flash>\n");
break;
default:
sock_send_string (c->sock, "huh? Too many parameters...\n");
break;
}
return 0;
}
debug (RPT_DEBUG, "backlight(%s)", argv[1]);
backlight = (backlight && 1); /* only preserves ON/OFF bit*/
if (strcmp ("on", argv[1]) == 0) {
c->backlight_state = BACKLIGHT_ON;
} else if (strcmp ("off", argv[1]) == 0) {
c->backlight_state = BACKLIGHT_OFF;
} else if (strcmp ("toggle", argv[1]) == 0) {
if (c->backlight_state == BACKLIGHT_ON)
c->backlight_state = BACKLIGHT_OFF;
else if (c->backlight_state == BACKLIGHT_OFF)
c->backlight_state = BACKLIGHT_ON;
} else if (strcmp ("blink", argv[1]) == 0) {
c->backlight_state |= BACKLIGHT_BLINK;
} else if (strcmp ("flash", argv[1]) == 0) {
c->backlight_state |= BACKLIGHT_FLASH;
}
sock_send_string(c->sock, "success\n");
return 0;
}
/****************************************************************************
* Sets the state of the output port (such as on MtxOrb LCDs)
*
* usage: output <on|off|int>
*/
#define ALL_OUTPUTS_ON -1
#define ALL_OUTPUTS_OFF 0
int
output_func (client * c, int argc, char **argv)
{
/*int rc = 0;*/
char str[128];
if (argc != 2) {
if (NoArguments)
sock_send_string (c->sock, "huh? usage: output <on|off|num> -- num may be decimal, hex, or octal\n");
else
sock_send_string (c->sock, "huh? Too many parameters...\n");
return 0;
}
if (0 == strcmp (argv[1], "on"))
output_state = ALL_OUTPUTS_ON;
else if (0 == strcmp (argv[1], "off"))
output_state = ALL_OUTPUTS_OFF;
else {
long out;
char *endptr, *p;
/* Note that there is no valid range set for
* output_state; thus a value in the 12 digits
* is not considered out of range.
*/
errno = 0;
/* errno is set here, because if strtol does not result in
* ERANGE (out of range error) it will not set errno (!).
* At least, this is the case with glibc 2.1.3 ...
*/
p = argv[1];
out = strtol(p, &endptr, 0);
/* From the man page for strtol(3)
*
* In particular, if *nptr is not `\0' but **endptr is
* `\0' on return, the entire string is valid.
*
* In this case, argv[1] is *nptr, and &endptr is **endptr.
*/
if (errno) {
int space;
strcat(str, "huh? number argument: ");
space = sizeof(str) - 3 - strlen(str);
strncat(str, strerror(errno), space);
strcat(str, "\n");
sock_send_string (c->sock, str);
return 0;
} else if (*p != '\0' && *endptr == '\0') {
output_state = out;
} else {
sock_send_string (c->sock, "huh? invalid parameter...\n");
return 0;
}
}
sock_send_string(c->sock, "success\n");
/* Makes sense to me to set the output immediately;
* however, the outputs are currently set in
* draw_screen(screen * s, int timer)
* Whatever for? */
/* drivers_output (output_state); */
report(RPT_NOTICE, "output states changed");
return 0;
}
/****************************************************************************
* info_func
*
* usage: info
*/
int
info_func (client * c, int argc, char **argv)
{
char str[1024];
if (! NoArguments) {
sock_send_string (c->sock, "huh? Extra arguments ignored...\n");
}
memset(str, '\0', sizeof(str));
snprintf (str, sizeof(str)-1, (char*) drivers_get_info());
sock_send_string (c->sock, str);
return 0;
}
/*******************************************************************************
* sleep_func
*
* usage: sleep <seconds>
*/
int
sleep_func (client * c, int argc, char **argv)
{
int secs;
long out;
char *endptr, *p;
char str[120];
#define MAX_SECS 60
#define MIN_SECS 1
if (argc != 2) {
if (NoArguments)
sock_send_string (c->sock, "huh? usage: sleep <secs>\n");
else
sock_send_string (c->sock, "huh? Too many parameters...\n");
return 0;
}
errno = 0;
/* errno is set here, because if strtol does not result in
* ERANGE (out of range error) it will not set errno (!).
* At least, this is the case with glibc 2.1.3 ...
*/
p = argv[1];
out = strtol(p, &endptr, 0);
/* From the man page for strtol(3)
*
* In particular, if *nptr is not `\0' but **endptr is
* `\0' on return, the entire string is valid.
*
* In this case, argv[1] is *nptr, and &endptr is **endptr.
*/
if (errno) {
int space;
strcat(str, "huh? number argument: ");
space = sizeof(str) - 3 - strlen(str);
strncat(str, strerror(errno), space);
strcat(str, "\n");
sock_send_string (c->sock, str);
return 0;
} else if (*p != '\0' && *endptr == '\0') {
secs = out;
out = out > MAX_SECS ? MAX_SECS : out;
out = out < MIN_SECS ? MIN_SECS : out;
} else {
sock_send_string (c->sock, "huh? invalid parameter...\n");
return 0;
}
/* Repeat until no more remains - should normally be zero
* on exit the first time...*/
snprintf(str, sizeof(str), "sleeping %d seconds\n", secs);
sock_send_string (c->sock, str);
/* whoops.... if this takes place as planned, ALL screens
* will "freeze" for the alloted time...
*
* while ((secs = sleep(secs)) > 0)
*/ ;
sock_send_string (c->sock, "huh? ignored (not fully implemented)\n");
return 0;
}
/*****************************************************************************
* Does nothing, returns "noop complete" message
*
* This is useful for shell scripts or programs that want to talk
* with LCDproc and not get deadlocked. Send a noop after each
* command and look for the "noop complete" message.
*/
int
noop_func (client * c, int argc, char **argv)
{
sock_send_string (c->sock, "noop complete\n");
return 0;
}
/*end of client_functions.c*/
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