aboutsummaryrefslogtreecommitdiffstats
path: root/lib/libdvbsec/dvbsec_cfg.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--lib/libdvbsec/dvbsec_cfg.c366
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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 11:35:52 +0000