/* $Id$ * $URL$ * * plugin for external processes * * Copyright (C) 2004 Michael Reinelt * Copyright (C) 2004 The LCD4Linux Team * * based on the old 'exec' client which is * Copyright (C) 2001 Leopold Tötsch * * * 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. * */ /* * exported functions: * * int plugin_init_exec (void) * adds functions to start external pocesses * */ #include "config.h" #include #include #include #include #include #include "debug.h" #include "plugin.h" #include "hash.h" #include "cfg.h" #include "thread.h" #include "qprintf.h" #define NUM_THREADS 16 #define SHM_SIZE 4096 typedef struct { int delay; int mutex; pid_t pid; int shmid; char *cmd; char *key; char *ret; } EXEC_THREAD; static EXEC_THREAD Thread[NUM_THREADS]; static int max_thread = -1; static HASH EXEC; /* x^0 + x^5 + x^12 */ #define CRCPOLY 0x8408 static unsigned short CRC(const char *s) { int i; unsigned short crc; /* seed value */ crc = 0xffff; while (*s != '\0') { crc ^= *s++; for (i = 0; i < 8; i++) crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY : 0); } return crc; } static void exec_thread(void *data) { EXEC_THREAD *Thread = (EXEC_THREAD *) data; FILE *pipe; char buffer[SHM_SIZE]; int len; /* use a safe path */ putenv("PATH=/usr/local/bin:/usr/bin:/bin"); /* forever... */ while (1) { pipe = popen(Thread->cmd, "r"); if (pipe == NULL) { error("exec error: could not run pipe '%s': %s", Thread->cmd, strerror(errno)); len = 0; } else { len = fread(buffer, 1, SHM_SIZE - 1, pipe); if (len <= 0) { error("exec error: could not read from pipe '%s': %s", Thread->cmd, strerror(errno)); len = 0; } pclose(pipe); } /* force trailing zero */ buffer[len] = '\0'; /* remove trailing CR/LF */ while (len > 0 && (buffer[len - 1] == '\n' || buffer[len - 1] == '\r')) { buffer[--len] = '\0'; } /* lock shared memory */ mutex_lock(Thread->mutex); /* write data */ strncpy(Thread->ret, buffer, SHM_SIZE); /* unlock shared memory */ mutex_unlock(Thread->mutex); usleep(Thread->delay); } } static void destroy_exec_thread(const int n) { thread_destroy(Thread[n].pid); if (Thread[n].mutex != 0) mutex_destroy(Thread[n].mutex); if (Thread[n].cmd) free(Thread[n].cmd); if (Thread[n].key) free(Thread[n].key); if (Thread[n].ret) shm_destroy(Thread[n].shmid, Thread[n].ret); Thread[n].delay = 0; Thread[n].mutex = 0; Thread[n].pid = 0; Thread[n].shmid = 0; Thread[n].cmd = NULL; Thread[n].key = NULL; Thread[n].ret = NULL; } static int create_exec_thread(const char *cmd, const char *key, const int delay) { char name[10]; if (max_thread >= NUM_THREADS) { error("cannot create exec thread <%s>: thread buffer full!", cmd); return -1; } max_thread++; Thread[max_thread].delay = delay;

#------------------------------------------------------------------------------
# file automatically generated by w_scan
# (http://wirbel.htpc-forum.de/w_scan/index2.html)
#! <w_scan> 20100316 1 0 OFDM IS </w_scan>
#------------------------------------------------------------------------------
# location and provider: <add description here>
# date (yyyy-mm-dd)    : 2010-10-22
# provided by (opt)    : <your name or email here>
#
# T[2] <freq> <bw> <fec_hi> <fec_lo> <mod> <tm> <guard> <hi> [# comment]
#------------------------------------------------------------------------------
T 522000000 8MHz  2/3 NONE    QAM64   8k 1/16 NONE
T 530000000 8MHz  2/3 NONE    QAM64   8k 1/16 NONE	# Vodafone
T 538000000 8MHz  2/3 NONE    QAM64   8k 1/16 NONE
T 674000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 770000000 8MHz  1/2 NONE    QAM64   2k 1/32 NONE	# Vodafone
T 690000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 722000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 738000000 8MHz  1/2 NONE     QPSK   2k 1/32 NONE	# Vodafone
T 754000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 762000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 778000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 818000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 714000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 682000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 698000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 706000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 794000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone
T 802000000 8MHz  2/3 NONE    QAM64   8k 1/32 NONE	# Vodafone