Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207

1 files changed, 366 insertions, 0 deletions

diff --git a/lib/libdvbsec/dvbsec_cfg.c b/lib/libdvbsec/dvbsec_cfg.c
new file mode 100644
index 0000000..4b05a32
--- /dev/null
+++ b/lib/libdvbsec/dvbsec_cfg.c
@@ -0,0 +1,366 @@
+/**
+ * dvbsec_cfg (i.e. linuxtv sec format) configuration file support.
+ *
+ * Copyright (c) 2005 by Andrew de Quincey <adq_dvb@lidskialf.net>
+ *
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+#include <linux/types.h>
+#include "dvbsec_cfg.h"
+
+int dvbcfg_issection(char* line, char* sectionname)
+{
+	int len;
+
+	len = strlen(line);
+	if (len < 2)
+		return 0;
+
+	if ((line[0] != '[') || (line[len-1] != ']'))
+		return 0;
+
+	line++;
+	while(isspace(*line))
+		line++;
+
+	if (strncmp(line, sectionname, strlen(sectionname)))
+		return 0;
+
+	return 1;
+}
+
+char* dvbcfg_iskey(char* line, char* keyname)
+{
+	int len = strlen(keyname);
+
+	/* does the key match? */
+	if (strncmp(line, keyname, len))
+		return NULL;
+
+	/* skip keyname & any whitespace */
+	line += len;
+	while(isspace(*line))
+		line++;
+
+	/* should be the '=' sign */
+	if (*line != '=')
+		return 0;
+
+	/* more whitespace skipping */
+	line++;
+	while(isspace(*line))
+		line++;
+
+	/* finally, return the value */
+	return line;
+}
+
+int dvbsec_cfg_load(FILE *f,
+		    void *arg,
+		    dvbsec_cfg_callback cb)
+{
+	struct dvbsec_config tmpsec;
+	char *linebuf = NULL;
+	size_t line_size = 0;
+	int len;
+	int insection = 0;
+	char *value;
+
+	/* process each line */
+	while((len = getline(&linebuf, &line_size, f)) > 0) {
+		char *line = linebuf;
+
+		/* chop any comments */
+		char *hashpos = strchr(line, '#');
+		if (hashpos)
+			*hashpos = 0;
+		char *lineend = line + strlen(line);
+
+		/* trim the line */
+		while(*line && isspace(*line))
+			line++;
+		while((lineend != line) && isspace(*(lineend-1)))
+			lineend--;
+		*lineend = 0;
+
+		/* skip blank lines */
+		if (*line == 0)
+			continue;
+
+		if (dvbcfg_issection(line, "sec")) {
+			if (insection) {
+				if (cb(arg, &tmpsec))
+					return 0;
+			}
+			insection = 1;
+			memset(&tmpsec, 0, sizeof(tmpsec));
+
+		} else if ((value = dvbcfg_iskey(line, "name")) != NULL) {
+			strncpy(tmpsec.id, value, sizeof(tmpsec.id));
+		} else if ((value = dvbcfg_iskey(line, "switch-frequency")) != NULL) {
+			tmpsec.switch_frequency = atoi(value);
+		} else if ((value = dvbcfg_iskey(line, "lof-lo-v")) != NULL) {
+			tmpsec.lof_lo_v = atoi(value);
+		} else if ((value = dvbcfg_iskey(line, "lof-lo-h")) != NULL) {
+			tmpsec.lof_lo_h = atoi(value);
+		} else if ((value = dvbcfg_iskey(line, "lof-lo-l")) != NULL) {
+			tmpsec.lof_lo_l = atoi(value);
+		} else if ((value = dvbcfg_iskey(line, "lof-lo-r")) != NULL) {
+			tmpsec.lof_lo_r = atoi(value);
+		} else if ((value = dvbcfg_iskey(line, "lof-hi-v")) != NULL) {
+			tmpsec.lof_hi_v = atoi(value);
+		} else if ((value = dvbcfg_iskey(line, "lof-hi-h")) != NULL) {
+			tmpsec.lof_hi_h = atoi(value);
+		} else if ((value = dvbcfg_iskey(line, "lof-hi-l")) != NULL) {
+			tmpsec.lof_hi_l = atoi(value);
+		} else if ((value = dvbcfg_iskey(line, "lof-hi-r")) != NULL) {
+			tmpsec.lof_hi_r = atoi(value);
+		} else if ((value = dvbcfg_iskey(line, "config-type")) != NULL) {
+			if (!strcasecmp(value, "none")) {
+				tmpsec.config_type = DVBSEC_CONFIG_NONE;
+			} else if (!strcasecmp(value, "power")) {
+				tmpsec.config_type = DVBSEC_CONFIG_POWER;
+			} else if (!strcasecmp(value, "standard")) {
+				tmpsec.config_type = DVBSEC_CONFIG_STANDARD;
+			} else if (!strcasecmp(value, "advanced")) {
+				tmpsec.config_type = DVBSEC_CONFIG_ADVANCED;
+			} else {
+				insection = 0;
+			}
+		} else if ((value = dvbcfg_iskey(line, "cmd-lo-v")) != NULL) {
+			strncpy(tmpsec.adv_cmd_lo_v, value, sizeof(tmpsec.adv_cmd_lo_v));
+		} else if ((value = dvbcfg_iskey(line, "cmd-lo-h")) != NULL) {
+			strncpy(tmpsec.adv_cmd_lo_h, value, sizeof(tmpsec.adv_cmd_lo_h));
+		} else if ((value = dvbcfg_iskey(line, "cmd-lo-r")) != NULL) {
+			strncpy(tmpsec.adv_cmd_lo_r, value, sizeof(tmpsec.adv_cmd_lo_r));
+		} else if ((value = dvbcfg_iskey(line, "cmd-lo-l")) != NULL) {
+			strncpy(tmpsec.adv_cmd_lo_l, value, sizeof(tmpsec.adv_cmd_lo_l));
+		} else if ((value = dvbcfg_iskey(line, "cmd-hi-v")) != NULL) {
+			strncpy(tmpsec.adv_cmd_hi_v, value, sizeof(tmpsec.adv_cmd_hi_v));
+		} else if ((value = dvbcfg_iskey(line, "cmd-hi-h")) != NULL) {
+			strncpy(tmpsec.adv_cmd_hi_h, value, sizeof(tmpsec.adv_cmd_hi_h));
+		} else if ((value = dvbcfg_iskey(line, "cmd-hi-r")) != NULL) {
+			strncpy(tmpsec.adv_cmd_hi_r, value, sizeof(tmpsec.adv_cmd_hi_r));
+		} else if ((value = dvbcfg_iskey(line, "cmd-hi-l")) != NULL) {
+			strncpy(tmpsec.adv_cmd_hi_l, value, sizeof(tmpsec.adv_cmd_hi_l));
+		} else {
+			insection = 0;
+		}
+	}
+
+	// output the final section if there is one
+	if (insection) {
+		if (cb(arg, &tmpsec))
+			return 0;
+	}
+
+	if (linebuf)
+		free(linebuf);
+	return 0;
+}
+
+static int dvbsec_cfg_find_callback(void *arg, struct dvbsec_config *sec);
+static int dvbsec_cfg_find_default(const char *sec_id, struct dvbsec_config *sec);
+
+struct findparams {
+	const char *sec_id;
+	struct dvbsec_config *sec_dest;
+};
+
+int dvbsec_cfg_find(const char *config_file,
+		    const char *sec_id,
+		    struct dvbsec_config *sec)
+{
+	struct findparams findp;
+
+	// clear the structure
+	memset(sec, 0, sizeof(struct dvbsec_config));
+
+	// open the file
+	if (config_file != NULL) {
+		FILE *f = fopen(config_file, "r");
+		if (f == NULL)
+			return -EIO;
+
+		// parse each entry
+		findp.sec_id = sec_id;
+		findp.sec_dest = sec;
+		dvbsec_cfg_load(f, &findp, dvbsec_cfg_find_callback);
+
+		// done
+		fclose(f);
+
+		// find it?
+		if (sec->id[0])
+			return 0;
+	}
+
+	return dvbsec_cfg_find_default(sec_id, sec);
+}
+
+static int dvbsec_cfg_find_callback(void *arg, struct dvbsec_config *sec)
+{
+	struct findparams *findp = arg;
+
+	if (strcmp(findp->sec_id, sec->id))
+		return 0;
+
+	memcpy(findp->sec_dest, sec, sizeof(struct dvbsec_config));
+	return 1;
+}
+
+int dvbsec_cfg_save(FILE *f,
+		    struct dvbsec_config *secs,
+		    int count)
+{
+	int i;
+
+	for(i=0; i<count; i++) {
+		char *config_type = "";
+		switch(secs[i].config_type) {
+		case DVBSEC_CONFIG_NONE:
+			config_type = "none";
+			break;
+		case DVBSEC_CONFIG_POWER:
+			config_type = "power";
+			break;
+		case DVBSEC_CONFIG_STANDARD:
+			config_type = "standard";
+			break;
+		case DVBSEC_CONFIG_ADVANCED:
+			config_type = "advanced";
+			break;
+		}
+
+		fprintf(f, "[lnb]\n");
+		fprintf(f, "switch-frequency=%i\n", secs[i].switch_frequency);
+		if (secs[i].lof_lo_v)
+			fprintf(f, "lof-lo-v=%i\n", secs[i].lof_lo_v);
+		if (secs[i].lof_lo_h)
+			fprintf(f, "lof-lo-h=%i\n", secs[i].lof_lo_h);
+		if (secs[i].lof_lo_l)
+			fprintf(f, "lof-lo-l=%i\n", secs[i].lof_lo_l);
+		if (secs[i].lof_lo_r)
+			fprintf(f, "lof-lo-r=%i\n", secs[i].lof_lo_r);
+		if (secs[i].lof_hi_v)
+			fprintf(f, "lof-hi-v=%i\n", secs[i].lof_hi_v);
+		if (secs[i].lof_hi_h)
+			fprintf(f, "lof-hi-h=%i\n", secs[i].lof_hi_h);
+		if (secs[i].lof_hi_l)
+			fprintf(f, "lof-hi-l=%i\n", secs[i].lof_hi_l);
+		if (secs[i].lof_hi_r)
+			fprintf(f, "lof-hi-r=%i\n", secs[i].lof_hi_r);
+		fprintf(f, "config-type=%s\n", config_type);
+
+		if (secs[i].config_type == DVBSEC_CONFIG_ADVANCED) {
+			if (secs[i].adv_cmd_lo_h[0])
+				fprintf(f, "cmd-lo-h=%s\n", secs[i].adv_cmd_lo_h);
+			if (secs[i].adv_cmd_lo_v[0])
+				fprintf(f, "cmd-lo-v=%s\n", secs[i].adv_cmd_lo_v);
+			if (secs[i].adv_cmd_lo_r[0])
+				fprintf(f, "cmd-lo-r=%s\n", secs[i].adv_cmd_lo_r);
+			if (secs[i].adv_cmd_lo_l[0])
+				fprintf(f, "cmd-lo-l=%s\n", secs[i].adv_cmd_lo_l);
+			if (secs[i].adv_cmd_hi_h[0])
+				fprintf(f, "cmd-hi-h=%s\n", secs[i].adv_cmd_hi_h);
+			if (secs[i].adv_cmd_hi_v[0])
+				fprintf(f, "cmd-hi-v=%s\n", secs[i].adv_cmd_hi_v);
+			if (secs[i].adv_cmd_hi_r[0])
+				fprintf(f, "cmd-hi-r=%s\n", secs[i].adv_cmd_hi_r);
+			if (secs[i].adv_cmd_hi_l[0])
+				fprintf(f, "cmd-hi-l=%s\n", secs[i].adv_cmd_hi_l);
+		}
+
+		fprintf(f, "\n");
+	}
+
+	return 0;
+}
+
+static struct dvbsec_config defaults[] = {
+
+	{
+		.id = "NULL",
+		.config_type = DVBSEC_CONFIG_STANDARD,
+	},
+	{
+		.id = "UNIVERSAL",
+		.switch_frequency = 11700000,
+		.lof_lo_v = 9750000,
+		.lof_lo_h = 9750000,
+		.lof_hi_v = 10600000,
+		.lof_hi_h = 10600000,
+		.config_type = DVBSEC_CONFIG_STANDARD,
+	},
+	{
+		.id = "DBS",
+		.switch_frequency = 0,
+		.lof_lo_v = 11250000,
+		.lof_lo_h = 11250000,
+		.config_type = DVBSEC_CONFIG_STANDARD,
+	},
+	{
+		.id = "STANDARD",
+		.switch_frequency = 0,
+		.lof_lo_v = 10000000,
+		.lof_lo_h = 10000000,
+		.config_type = DVBSEC_CONFIG_STANDARD,
+	},
+	{
+		.id = "ENHANCED",
+		.switch_frequency = 0,
+		.lof_lo_v = 9750000,
+		.lof_lo_h = 9750000,
+		.config_type = DVBSEC_CONFIG_STANDARD,
+	},
+	{
+		.id = "C-BAND",
+		.switch_frequency = 0,
+		.lof_lo_v = 5150000,
+		.lof_lo_h = 5150000,
+		.config_type = DVBSEC_CONFIG_POWER,
+	},
+	{
+		.id = "C-MULTI",
+		.switch_frequency = 0,
+		.lof_lo_v = 5150000,
+		.lof_lo_h = 5750000,
+		.config_type = DVBSEC_CONFIG_POWER,
+	},
+};
+#define defaults_count (sizeof(defaults) / sizeof(struct dvbsec_config))
+
+static int dvbsec_cfg_find_default(const char *sec_id,
+				   struct dvbsec_config *sec)
+{
+	unsigned int i;
+
+	for(i=0; i< defaults_count; i++) {
+		if (!strncmp(sec_id, defaults[i].id, sizeof(defaults[i].id))) {
+			memcpy(sec, &defaults[i], sizeof(struct dvbsec_config));
+			return 0;
+		}
+	}
+
+	return -1;
+}