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Diffstat (limited to 'ksysguard/ksysguardd/Command.c')
| -rw-r--r-- | ksysguard/ksysguardd/Command.c | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/ksysguard/ksysguardd/Command.c b/ksysguard/ksysguardd/Command.c new file mode 100644 index 000000000..17abffb92 --- /dev/null +++ b/ksysguard/ksysguardd/Command.c @@ -0,0 +1,261 @@ +/* + KSysGuard, the KDE System Guard + + Copyright (c) 1999 - 2001 Chris Schlaeger <[email protected]> + + This program 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 of the License, or + (at your option) any later version. + + This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + +*/ + +#include <signal.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <syslog.h> + +#include "ccont.h" +#include "ksysguardd.h" + +#include "Command.h" + +typedef struct { + char* command; + cmdExecutor ex; + char* type; + int isMonitor; + struct SensorModul* sm; +} Command; + +static CONTAINER CommandList; +static sigset_t SignalSet; + +void command_cleanup( void* v ); + +void command_cleanup( void* v ) +{ + if ( v ) { + Command* c = v; + if ( c->command ) + free ( c->command ); + if ( c->type ) + free ( c->type ); + free ( v ); + } +} + +/* +================================ public part ================================= +*/ + +int ReconfigureFlag = 0; +int CheckSetupFlag = 0; + +void print_error( const char *fmt, ... ) +{ + char errmsg[ 1024 ]; + va_list az; + + va_start( az, fmt ); + vsnprintf( errmsg, sizeof( errmsg ) - 1, fmt, az ); + errmsg[ sizeof( errmsg ) - 1 ] = '\0'; + va_end( az ); + + if ( CurrentClient ) + fprintf( CurrentClient, "\033%s\033", errmsg ); +} + +void log_error( const char *fmt, ... ) +{ + char errmsg[ 1024 ]; + va_list az; + + va_start( az, fmt ); + vsnprintf( errmsg, sizeof( errmsg ) - 1, fmt, az ); + errmsg[ sizeof( errmsg ) - 1 ] = '\0'; + va_end( az ); + + openlog( "ksysguardd", LOG_PID, LOG_DAEMON ); + syslog( LOG_ERR, "%s", errmsg ); + closelog(); +} + +void initCommand( void ) +{ + CommandList = new_ctnr(); + sigemptyset( &SignalSet ); + sigaddset( &SignalSet, SIGALRM ); + + registerCommand( "monitors", printMonitors ); + registerCommand( "test", printTest ); + + if ( RunAsDaemon == 0 ) + registerCommand( "quit", exQuit ); +} + +void exitCommand( void ) +{ + destr_ctnr( CommandList, command_cleanup ); +} + +void registerCommand( const char* command, cmdExecutor ex ) +{ + Command* cmd = (Command*)malloc( sizeof( Command ) ); + cmd->command = (char*)malloc( strlen( command ) + 1 ); + strcpy( cmd->command, command ); + cmd->type = 0; + cmd->ex = ex; + cmd->isMonitor = 0; + push_ctnr( CommandList, cmd ); + ReconfigureFlag = 1; +} + +void removeCommand( const char* command ) +{ + Command* cmd; + + for ( cmd = first_ctnr( CommandList ); cmd; cmd = next_ctnr( CommandList ) ) { + if ( strcmp( cmd->command, command ) == 0 ) { + remove_ctnr( CommandList ); + if ( cmd->command ) + free( cmd->command ); + if ( cmd->type ) + free( cmd->type ); + free( cmd ); + } + } + + ReconfigureFlag = 1; +} + +void registerMonitor( const char* command, const char* type, cmdExecutor ex, + cmdExecutor iq, struct SensorModul* sm ) +{ + /* Monitors are similar to regular commands except that every monitor + * registers two commands. The first is the value request command and + * the second is the info request command. The info request command is + * identical to the value request but with an '?' appended. The value + * command prints a single value. The info request command prints + * a description of the monitor, the mininum value, the maximum value + * and the unit. */ + Command* cmd = (Command*)malloc( sizeof( Command ) ); + cmd->command = (char*)malloc( strlen( command ) + 1 ); + strcpy( cmd->command, command ); + cmd->ex = ex; + cmd->type = (char*)malloc( strlen( type ) + 1 ); + strcpy( cmd->type, type ); + cmd->isMonitor = 1; + cmd->sm = sm; + push_ctnr( CommandList, cmd ); + + cmd = (Command*)malloc( sizeof( Command ) ); + cmd->command = (char*)malloc( strlen( command ) + 2 ); + strcpy( cmd->command, command ); + cmd->command[ strlen( command ) ] = '?'; + cmd->command[ strlen( command ) + 1 ] = '\0'; + cmd->ex = iq; + cmd->isMonitor = 0; + cmd->sm = sm; + cmd->type = 0; + push_ctnr( CommandList, cmd ); +} + +void removeMonitor( const char* command ) +{ + char* buf; + + removeCommand( command ); + buf = (char*)malloc( strlen( command ) + 2 ); + strcpy( buf, command ); + strcat( buf, "?" ); + removeCommand( buf ); + free( buf ); +} + +void executeCommand( const char* command ) +{ + Command* cmd; + char tokenFormat[ 64 ]; + char token[ 64 ]; + + sprintf( tokenFormat, "%%%ds", (int)sizeof( token ) - 1 ); + sscanf( command, tokenFormat, token ); + + for ( cmd = first_ctnr( CommandList ); cmd; cmd = next_ctnr( CommandList ) ) { + if ( strcmp( cmd->command, token ) == 0 ) { + if ( cmd->isMonitor ) { + if ( ( time( NULL ) - cmd->sm->time ) >= UPDATEINTERVAL ) { + cmd->sm->time = time( NULL ); + + if ( cmd->sm->updateCommand != NULL ) + cmd->sm->updateCommand(); + } + } + + (*(cmd->ex))( command ); + + if ( ReconfigureFlag ) { + ReconfigureFlag = 0; + print_error( "RECONFIGURE\n" ); + } + + fflush( CurrentClient ); + return; + } + } + + if ( CurrentClient ) { + fprintf( CurrentClient, "UNKNOWN COMMAND\n" ); + fflush( CurrentClient ); + } +} + +void printMonitors( const char *c ) +{ + Command* cmd; + ReconfigureFlag = 0; + + (void)c; + + for ( cmd = first_ctnr( CommandList ); cmd; cmd = next_ctnr( CommandList ) ) { + if ( cmd->isMonitor ) + fprintf(CurrentClient, "%s\t%s\n", cmd->command, cmd->type); + } + + fflush( CurrentClient ); +} + +void printTest( const char* c ) +{ + Command* cmd; + + for ( cmd = first_ctnr( CommandList ); cmd; cmd = next_ctnr( CommandList ) ) { + if ( strcmp( cmd->command, c + strlen( "test " ) ) == 0 ) { + fprintf( CurrentClient, "1\n" ); + fflush( CurrentClient ); + return; + } + } + + fprintf( CurrentClient, "0\n" ); + fflush( CurrentClient ); +} + +void exQuit( const char* cmd ) +{ + (void)cmd; + + QuitApp = 1; +} |