add heater commands and fits-header creation

Daemons/deprecated/10micron_stellarium.deprecated/Makefile

@@ -0,0 +1,23 @@
+PROGRAM = stellariumdaemon
+LDFLAGS = -lerfa -pthread -lusefull_macros
+SRCS = $(wildcard *.c)
+CC = gcc
+DEFINES = -D_GNU_SOURCE -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=1111
+DEFINES += -DEBUG
+CXX = gcc
+CFLAGS = -Wall -Werror -Wextra -Wno-trampolines $(DEFINES)
+OBJS = $(SRCS:.c=.o)
+all : $(PROGRAM)
+$(PROGRAM) : $(OBJS)
+	$(CC) $(CFLAGS) $(OBJS) $(LDFLAGS) -o $(PROGRAM)
+
+# some addition dependencies
+# %.o: %.c
+#        $(CC) $(LDFLAGS) $(CFLAGS) $< -o $@
+#$(SRCS) : %.c : %.h $(INDEPENDENT_HEADERS)
+#        @touch $@
+
+clean:
+	/bin/rm -f *.o *~
+depend:
+	$(CXX) -MM $(CXX.SRCS)

Daemons/deprecated/10micron_stellarium.deprecated/Readme

@@ -0,0 +1,6 @@
+Stellarium control of 10-micron mount
+
+
+Special commands in terminal mode:
+PAUSE - pause output to port from everywhere except terminal thread
+CONTINUE - allow to write to port for everyone

Daemons/teldaemon_astrosib/Makefile

@@ -5,7 +5,7 @@ LDFLAGS += -lusefull_macros
 SRCS := $(wildcard *.c)
 DEFINES := $(DEF) -D_GNU_SOURCE -D_XOPEN_SOURCE=1111
 OBJDIR := mk
-CFLAGS += -O2 -Wall -Wextra -Wno-trampolines -std=gnu23
+CFLAGS += -O2 -Wall -Wextra -Wno-trampolines -Wno-format-truncation -std=gnu23
 OBJS := $(addprefix $(OBJDIR)/, $(SRCS:%.c=%.o))
 DEPS := $(OBJS:.o=.d)
 TARGFILE := $(OBJDIR)/TARGET

Daemons/teldaemon_astrosib/commands.h

@@ -31,8 +31,12 @@
 #define TXT_COOLEROFF   "COOLEROFF?\r"
 #define TXT_COOLERT     "COOLERT?\r"
 #define TXT_COOLERSTAT  "COOLERSTATUS?\r"
+#define TXT_HEATON      "HEATON?100\r"
+#define TXT_HEATOFF     "HEATOFF?\r"
+#define TXT_HEATSTAT    "HEATSTATUS?\r"
 #define TXT_PING        "PING?\r"
 #define TXT_ANS_OK      "OK"
+#define TXT_ANS_HEATSTAT    "OK\rHEATERSTATUS?"
 #define TXT_ANS_COOLERSTAT  "OK\rCOOLERPWM?"
 #define TXT_ANS_COOLERT "OK\rCOOLERT?"
 #define TXT_ANS_STATUS  "OK\rSHUTTERS?"

Daemons/teldaemon_astrosib/header.c

@@ -0,0 +1,141 @@
+/*
+ * This file is part of the teldaemon project.
+ * Copyright 2026 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <limits.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <usefull_macros.h>
+
+#include "header.h"
+#include "socket.h"
+
+static char *headername = NULL;
+static char *telescope_name = NULL;
+static header_mask_t header_mask = {0};
+
+static int printhdr(int fd, const char *key, const char *val, const char *cmnt){
+    char tmp[81];
+    char tk[9];
+    if(strlen(key) > 8){
+        snprintf(tk, 8, "%s", key);
+        key = tk;
+    }
+    if(cmnt){
+        snprintf(tmp, 81, "%-8s= %-21s / %s", key,  val, cmnt);
+    }else{
+        snprintf(tmp, 81, "%-8s= %s", key, val);
+    }
+    size_t l = strlen(tmp);
+    tmp[l] = '\n';
+    ++l;
+    if(write(fd, tmp, l) != (ssize_t)l){
+        WARN("write()");
+        return 1;
+    }
+    return 0;
+}
+
+// return TRUE if can write to given header file
+int header_create(const char *file, int flags){
+    if(!file || flags < 0 || flags > 0xff) return FALSE;
+    FILE *hf = fopen(file, "w");
+    if(!hf) return FALSE;
+    unlink(file);
+    if(headername) FREE(headername);
+    headername = strdup(file);
+    header_mask.flags = (uint8_t)flags;
+    return TRUE;
+}
+
+// set given `name` for telescope name
+void telname(const char *name){
+    if(telescope_name) FREE(telescope_name);
+    if(name){
+        int l = strlen(name) + 3;
+        telescope_name = MALLOC(char, l);
+        snprintf(telescope_name, l-1, "'%s'", name);
+    }
+}
+
+// return static buffer with help
+const char *getheadermaskhelp(){
+    return
+        "0 - telescope name\n"
+        "1 - focuser status\n"
+        "2 - cooler status\n"
+        "3 - heater status\n"
+        "4 - external temperature\n"
+        "5 - mirror temperature\n"
+        "6 - measured time\n"
+    ;
+}
+
+void write_header(){
+    if(!headername || !header_mask.flags) return;
+    char aname[PATH_MAX];
+    char val[22];
+    telstatus_t st;
+#define WRHDR(k, v, c)  do{if(printhdr(fd, k, v, c)){goto returning;}}while(0)
+    snprintf(aname, PATH_MAX-1, "%sXXXXXX", headername);
+    int fd = mkstemp(aname);
+    if(fd < 0){
+        LOGWARN("Can't write header file: mkstemp()");
+        return;
+    }
+    fchmod(fd, 0644);
+
+    if(get_telescope_data(&st)) WRHDR("OPERATIO", "'FORBIDDEN'", "Observations are forbidden");
+    if(header_mask.telname && telescope_name) WRHDR("TELESCOP", telescope_name, "Telescope name");
+    if(header_mask.fosuser){
+        snprintf(val, 21, "%d", st.focuserpos);
+        WRHDR("FOCUS", val, "Current focuser position");
+    }
+    if(header_mask.cooler){
+        snprintf(val, 21, "%d", st.cooler);
+        WRHDR("COOLER", val, "Primary mirror cooler status: 0/1 (off/on)");
+    }
+    if(header_mask.heater){
+        snprintf(val, 21, "%d", st.heater);
+        WRHDR("HEATER", val, "Secondary mirror heater status: 0/1 (off/on)");
+    }
+    if(header_mask.exttemp){
+        snprintf(val, 21, "%.1f", st.ambienttemp);
+        WRHDR("TDOME", val, "In-dome temperature, degC");
+    }
+    if(header_mask.mirtemp){
+        snprintf(val, 21, "%.1f", st.mirrortemp);
+        WRHDR("TMIRROR", val, "Mirror temperature, degC");
+    }
+    if(header_mask.meastime){
+        snprintf(val, 21, "%.3f", st.stattime);
+        char timebuf[BUFSIZ];
+        time_t t = (time_t) st.stattime;
+        struct tm *tmp;
+        tmp = localtime(&t);
+        if(!tmp || 0 == strftime(timebuf, BUFSIZ, "Measurement time: %F %T", tmp)){
+            LOGERR("localtime() returned NULL");
+            goto returning;
+        }
+        WRHDR("TMEAS", val, timebuf);
+
+    }
+#undef WRHDR
+returning:
+    close(fd);
+    rename(aname, headername);
+}

Daemons/teldaemon_astrosib/header.h

@@ -0,0 +1,39 @@
+/*
+ * This file is part of the teldaemon project.
+ * Copyright 2026 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+typedef union{
+    struct{
+    uint8_t telname : 1;    // show telescope name
+    uint8_t fosuser : 1;    // show focuser status
+    uint8_t cooler  : 1;    // show cooler status
+    uint8_t heater  : 1;    // show heater status
+    uint8_t exttemp : 1;    // show external temperature
+    uint8_t mirtemp : 1;    // show mirror temperature
+    uint8_t meastime: 1;    // show measurement time
+    };
+    uint8_t flags;          // alltogether as single flags
+} header_mask_t;
+
+const char *getheadermaskhelp();
+void write_header();
+int header_create(const char *file, int flags);
+void telname(const char *name);

Daemons/teldaemon_astrosib/main.c

@@ -20,77 +20,125 @@
 #include <signal.h>
 #include <stdio.h>
 #include <string.h>
+#include <linux/prctl.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
 #include <sys/socket.h>
 #include <usefull_macros.h>
 
+#include "header.h"
 #include "socket.h"
 #include "term.h"
 
+#define DEFAULT_PIDFILE     "/tmp/teldaemon.pid"
+#define DEFAULT_HEADERFILE  "/tmp/telescope.pid"
+#define DEFAULT_TELNAME     "Astro-M (1)"
+
+static pid_t childpid = 0;
+
 typedef struct{
     int help;
     int verbose;
     int isunix;
     int maxclients;
     int serspeed;
+    int headermask;
     double sertmout;
     char *logfile;
     char *node;
     char *termpath;
     char *pidfile;
+    char *headerfile;
+    char *telescope_name;
 } parameters;
 
 static parameters G = {
     .maxclients = 2,
     .serspeed = 9600,
     .sertmout = 1000.,
+    .pidfile = DEFAULT_PIDFILE,
+    .headerfile = DEFAULT_HEADERFILE,
+    .telescope_name = DEFAULT_TELNAME,
+    .headermask = 0xff,
 };
 
 static sl_option_t cmdlnopts[] = {
     {"help",        NO_ARGS,    NULL,   'h',    arg_int,    APTR(&G.help),      "show this help"},
     {"verbose",     NO_ARGS,    NULL,   'v',    arg_none,   APTR(&G.verbose),   "verbose level (each -v adds 1)"},
-    {"logfile",     NEED_ARG,   NULL,   'l',    arg_string, APTR(&G.logfile),   "log file name"},
+    {"logfile",     NEED_ARG,   NULL,   'l',    arg_string, APTR(&G.logfile),   "log file name (FULL path)"},
     {"node",        NEED_ARG,   NULL,   'n',    arg_string, APTR(&G.node),      "node \"IP\", \"name:IP\" or path (could be \"\\0path\" for anonymous UNIX-socket)"},
     {"unixsock",    NO_ARGS,    NULL,   'u',    arg_int,    APTR(&G.isunix),    "UNIX socket instead of INET"},
     {"maxclients",  NEED_ARG,   NULL,   'm',    arg_int,    APTR(&G.maxclients),"max amount of clients connected to server (default: 2)"},
-    {"pidfile",     NEED_ARG,   NULL,   'p',    arg_string, APTR(&G.pidfile),   "PID-file"},
+    {"pidfile",     NEED_ARG,   NULL,   'p',    arg_string, APTR(&G.pidfile),   "PID-file (FULL path, default: " DEFAULT_PIDFILE ")"},
     {"serialdev",   NEED_ARG,   NULL,   'd',    arg_string, APTR(&G.termpath),  "full path to serial device"},
     {"baudrate",    NEED_ARG,   NULL,   'b',    arg_int,    APTR(&G.serspeed),  "serial device speed (baud)"},
-    {"sertmout",    NEED_ARG,   NULL,   'T',    arg_double, APTR(&G.sertmout),  "serial device timeout (us)"},
+    {"sertmout",    NEED_ARG,   NULL,   't',    arg_double, APTR(&G.sertmout),  "serial device timeout (us)"},
+    {"headerfile",  NEED_ARG,   NULL,   'H',    arg_string, APTR(&G.headerfile),"full path to output FITS-header"},
+    {"telname",     NEED_ARG,   NULL,   'N',    arg_string, APTR(&G.telescope_name), "telescope name in FITS-header"},
+    {"headermask",  NEED_ARG,   NULL,   'M',    arg_int,    APTR(&G.headermask), "mask of header file (try -1 for help; default: show all)"},
     end_option
 };
 
+void sl_iffound_deflt(pid_t pid){
+    WARNX("Another copy of this process found, pid=%d. Exit.", pid);
+    exit(1); // don't run `signals` to protect foreign PID-file from removal
+}
 
 // SIGUSR1 - FORBID observations
 // SIGUSR2 - allow
 void signals(int sig){
     if(sig){
+        if(signals != signal(sig, SIG_IGN)) exit(sig); // function called "as is", before sig registration
+        if(childpid == 0){ // child -> test USR1/USR2
+            LOGDBG("Child gotta signal %d", sig);
             if(sig == SIGUSR1){
                 forbid_observations(1);
+                LOGMSG("Got signal `observations forbidden`");
+                signal(sig, signals);
                 return;
             }else if(sig == SIGUSR2){
                 forbid_observations(0);
+                LOGMSG("Got signal `observations permitted`");
+                signal(sig, signals);
                 return;
             }
-        signal(sig, SIG_IGN);
+        }
-        DBG("Get signal %d, quit.\n", sig);
+        LOGDBG("Get signal %d, quit.\n", sig);
-        LOGERR("Exit with status %d", sig);
+    }
-    }else LOGERR("Exit");
+    if(childpid == 0){
         DBG("Stop server");
+        LOGMSG("Stop server");
         stopserver();
         DBG("Close terminal");
+        LOGMSG("Close terminal");
         term_close();
-    DBG("Exit");
+    }else{
+        if(G.pidfile){
+            LOGMSG("Unlink %s", G.pidfile);
+            usleep(10000);
+            unlink(G.pidfile);
+        }
+    }
+    LOGERR("Exit with status %d", sig);
     exit(sig);
 }
 
-
 int main(int argc, char **argv){
     sl_init();
     sl_parseargs(&argc, &argv, cmdlnopts);
     if(G.help) sl_showhelp(-1, cmdlnopts);
-    if(!G.node) ERRX("Point node");
+    if(G.headermask < 0){
+        green("Header mask bits (set to show info, clear to hide):\n");
+        printf("%s\n", getheadermaskhelp());
+        return 0;
+    }
+    if(!G.node) ERRX("Point communication node");
     if(!G.termpath) ERRX("Point serial device path");
-    sl_check4running((char*)__progname, G.pidfile);
+    if(!header_create(G.headerfile, G.headermask))
+        ERRX("Cannot write into '%s'", G.headerfile);
+    telname(G.telescope_name);
+    sl_check4running(NULL, G.pidfile);
+    if(sl_daemonize()) ERR("Can't daemonize!");
     sl_loglevel_e lvl = G.verbose + LOGLEVEL_ERR;
     if(lvl >= LOGLEVEL_AMOUNT) lvl = LOGLEVEL_AMOUNT - 1;
     if(G.logfile) OPENLOG(G.logfile, lvl, 1);
@@ -103,11 +151,26 @@ int main(int argc, char **argv){
     signal(SIGINT, signals);
     signal(SIGQUIT, signals);
     signal(SIGTSTP, SIG_IGN);
-    signal(SIGHUP, signals);
+    signal(SIGUSR1, SIG_IGN);
+    signal(SIGUSR2, SIG_IGN);
+    while(1){ // guard for dead processes
+        childpid = fork();
+        if(childpid){
+            LOGMSG("create child with PID %d\n", childpid);
+            DBG("Created child with PID %d\n", childpid);
+            wait(NULL);
+            WARNX("Child %d died\n", childpid);
+            LOGWARN("Child %d died\n", childpid);
+            sleep(1);
+        }else{
+            prctl(PR_SET_PDEATHSIG, SIGTERM); // send SIGTERM to child when parent dies
+            break; // go out to normal functional
+        }
+    }
+    // react for USRx only in child
     signal(SIGUSR1, signals);
     signal(SIGUSR2, signals);
     runserver(G.isunix, G.node, G.maxclients);
-    LOGMSG("Ended");
+    LOGERR("Server error -> exit");
-    DBG("Close");
     return 0;
 }

Daemons/teldaemon_astrosib/socket.c

@@ -22,6 +22,7 @@
 #include <string.h>
 
 #include "commands.h"
+#include "header.h"
 #include "socket.h"
 #include "term.h"
 
@@ -31,22 +32,21 @@ typedef enum{
     CMD_FOCSTOP,
     CMD_COOLERON,
     CMD_COOLEROFF,
+    CMD_HEATERON,
+    CMD_HEATEROFF,
     CMD_NONE
 } tel_commands_t;
 
-
-
 typedef struct{
-    tel_commands_t cmd; // deferred command
-    tel_commands_t errcmd; // command ended with error
     int focuserpos;     // focuser position
-    char *status;       // device status
+    char status[STATBUF_SZ]; // device status
-    int statlen;        // size of `status` buffer
     double stattime;    // time of last status
     int cooler;         // cooler's status
+    int heater;         // heater's status
     double mirrortemp;  // T mirror, degC
     double ambienttemp; // T ambient, degC
-    double temptime;    // measurement time
+    tel_commands_t cmd; // deferred command
+    tel_commands_t errcmd; // command ended with error
     pthread_mutex_t mutex;
 } tel_t;
 
@@ -65,6 +65,19 @@ void stopserver(){
     if(locksock) sl_sock_delete(&locksock);
 }
 
+/**
+ * @brief get_telescope_data - copy local `telescope` to `t`
+ * @param t (i) - pointer to your struct
+ * @return true if observations are permitted and false if forbidden
+ */
+bool get_telescope_data(telstatus_t *t){
+    if(!t) return false;
+    pthread_mutex_lock(&telescope.mutex);
+    *t = *((telstatus_t*)&telescope);
+    pthread_mutex_unlock(&telescope.mutex);
+    return ForbidObservations;
+}
+
 // send "measuret=..."
 static void sendtmeasured(sl_sock_t *client, double t){
     char buf[256];
@@ -160,6 +173,26 @@ static sl_sock_hresult_e coolerh(sl_sock_t *client, sl_sock_hitem_t *item, const
     return RESULT_SILENCE;
 }
 
+static sl_sock_hresult_e heaterh(sl_sock_t *client, sl_sock_hitem_t *item, const char *req){
+    char buf[256];
+    if(req){ // getter
+        int onoff;
+        if(!sl_str2i(&onoff, req)) return RESULT_BADVAL;
+        pthread_mutex_lock(&telescope.mutex);
+        if(onoff) telescope.cmd = CMD_HEATERON;
+        else telescope.cmd = CMD_HEATEROFF;
+        pthread_mutex_unlock(&telescope.mutex);
+        return RESULT_OK;
+    }
+    // getter
+    pthread_mutex_lock(&telescope.mutex);
+    snprintf(buf, 255, "%s=%d\n", item->key, telescope.heater);
+    pthread_mutex_unlock(&telescope.mutex);
+    sl_sock_sendstrmessage(client, buf);
+    return RESULT_SILENCE;
+}
+
+
 // focuser getter
 static sl_sock_hresult_e foch(sl_sock_t *client, sl_sock_hitem_t *item, _U_ const char *req){
     char buf[256];
@@ -217,6 +250,7 @@ static sl_sock_hitem_t handlers[] = {
     {statush, "status", "get shutters' status and temperatures", NULL},
     {fstoph, "focstop", "stop focuser moving", NULL},
     {coolerh, "cooler", "get/set cooler status", NULL},
+    {heaterh, "heater", "get/set heater status", NULL},
     {dtimeh, "dtime", "get server's UNIX time for all clients connected", NULL},
     {NULL, NULL, NULL, NULL}
 };
@@ -239,9 +273,9 @@ static int poll_device(){
     DBG("\nGot status");
     pthread_mutex_lock(&telescope.mutex);
     telescope.stattime = sl_dtime();
-    if(strncmp(data, "0,0,0,0,0", 9) == 0) snprintf(telescope.status, telescope.statlen, "closed");
+    if(strncmp(data, "0,0,0,0,0", 9) == 0) snprintf(telescope.status, STATBUF_SZ-1, "closed");
-    else if(strncmp(data, "1,1,1,1,1", 9) == 0) snprintf(telescope.status, telescope.statlen, "opened");
+    else if(strncmp(data, "1,1,1,1,1", 9) == 0) snprintf(telescope.status, STATBUF_SZ-1, "opened");
-    else snprintf(telescope.status, telescope.statlen, "intermediate");
+    else snprintf(telescope.status, STATBUF_SZ-1, "intermediate");
     pthread_mutex_unlock(&telescope.mutex);
 
     if(!(data = term_cmdwans(TXT_COOLERT, TXT_ANS_COOLERT, ans))) return FALSE;
@@ -253,7 +287,6 @@ static int poll_device(){
         telescope.mirrortemp = m;
         pthread_mutex_unlock(&telescope.mutex);
     }
-
     if(!(data = term_cmdwans(TXT_COOLERSTAT, TXT_ANS_COOLERSTAT, ans))) return FALSE;
     DBG("\nGot cooler status");
     if(sscanf(data, "%d", &I) == 1){
@@ -261,6 +294,13 @@ static int poll_device(){
         telescope.cooler = I;
         pthread_mutex_unlock(&telescope.mutex);
     }
+    if(!(data = term_cmdwans(TXT_HEATSTAT, TXT_ANS_HEATSTAT, ans))) return FALSE;
+    DBG("\nGot heater status");
+    if(sscanf(data, "%d", &I) == 1){
+        pthread_mutex_lock(&telescope.mutex);
+        telescope.heater = I;
+        pthread_mutex_unlock(&telescope.mutex);
+    }
     return TRUE;
 }
 
@@ -269,9 +309,6 @@ void runserver(int isunix, const char *node, int maxclients){
     int forbidden = 0;
     if(locksock) sl_sock_delete(&locksock);
     telescope.errcmd = telescope.cmd = CMD_NONE;
-    FREE(telescope.status);
-    telescope.statlen = STATBUF_SZ;
-    telescope.status = MALLOC(char, STATBUF_SZ);
     pthread_mutex_init(&telescope.mutex, NULL);
     sl_socktype_e type = (isunix) ? SOCKT_UNIX : SOCKT_NET;
     locksock = sl_sock_run_server(type, node, -1, handlers);
@@ -298,7 +335,10 @@ void runserver(int isunix, const char *node, int maxclients){
         }
         double tnow = sl_dtime();
         if(tnow - tgot > T_INTERVAL){
-            if(poll_device()) tgot = tnow;
+            if(poll_device()){
+                tgot = tnow;
+                write_header();
+            }
         }
         if(ForbidObservations) continue;
         pthread_mutex_lock(&telescope.mutex);
@@ -308,23 +348,50 @@ void runserver(int isunix, const char *node, int maxclients){
             switch(tcmd){
             case CMD_OPEN:
                 DBG("received command: open");
-                if(term_cmdwans(TXT_OPEN, TXT_ANS_OK, ans)) tcmd = CMD_NONE;
+                if(term_cmdwans(TXT_OPEN, TXT_ANS_OK, ans)){
+                    LOGMSG("Open dome");
+                    tcmd = CMD_NONE;
+                }
                 break;
             case CMD_CLOSE:
                 DBG("received command: close");
-                if(term_cmdwans(TXT_CLOSE, TXT_ANS_OK, ans)) tcmd = CMD_NONE;
+                if(term_cmdwans(TXT_CLOSE, TXT_ANS_OK, ans)){
+                    LOGMSG("Close dome");
+                    tcmd = CMD_NONE;
+                }
                 break;
             case CMD_FOCSTOP:
                 DBG("received command: stop focus");
+                LOGMSG("Stop focus");
                 term_write(TXT_FOCSTOP, ans); tcmd = CMD_NONE; // erroreous thing: no answer for this command
                 break;
             case CMD_COOLEROFF:
                 DBG("received command: cooler off");
-                if(term_cmdwans(TXT_COOLEROFF, TXT_ANS_OK, ans)) tcmd = CMD_NONE;
+                if(term_cmdwans(TXT_COOLEROFF, TXT_ANS_OK, ans)){
+                    LOGMSG("Cooler off");
+                    tcmd = CMD_NONE;
+                }
                 break;
             case CMD_COOLERON:
                 DBG("received command: cooler on");
-                if(term_cmdwans(TXT_COOLERON, TXT_ANS_OK, ans)) tcmd = CMD_NONE;
+                if(term_cmdwans(TXT_COOLERON, TXT_ANS_OK, ans)){
+                    LOGMSG("Cooler on");
+                    tcmd = CMD_NONE;
+                }
+                break;
+            case CMD_HEATERON:
+                DBG("received command: heater on");
+                if(term_cmdwans(TXT_HEATON, TXT_ANS_OK, ans)){
+                    LOGMSG("Heater on");
+                    tcmd = CMD_NONE;
+                }
+                break;
+            case CMD_HEATEROFF:
+                DBG("received command: heater off");
+                if(term_cmdwans(TXT_HEATOFF, TXT_ANS_OK, ans)){
+                    LOGMSG("Heater off");
+                    tcmd = CMD_NONE;
+                }
                 break;
             default:
                 DBG("WTF?");

Daemons/teldaemon_astrosib/socket.h

@@ -25,6 +25,17 @@
 // dome polling interval (clear watchdog & get status)
 #define T_INTERVAL      (2.0)
 
+typedef struct{
+    int focuserpos;     // focuser position
+    char status[STATBUF_SZ]; // device status
+    double stattime;    // time of last status
+    int cooler;         // cooler's status
+    int heater;         // heater's status
+    double mirrortemp;  // T mirror, degC
+    double ambienttemp; // T ambient, degC
+} telstatus_t;
+
 void runserver(int isunix, const char *node, int maxclients);
 void stopserver();
 void forbid_observations(int forbid);
+bool get_telescope_data(telstatus_t *t);

Daemons/teldaemon_astrosib/teldaemon.cflags

@@ -1 +1 @@
--std=c17
+-std=c23

Daemons/teldaemon_astrosib/teldaemon.cxxflags

@@ -1 +1 @@
--std=c++17
+-std=c++23

Daemons/teldaemon_astrosib/teldaemon.files

@@ -1,4 +1,6 @@
 commands.h
+header.c
+header.h
 main.c
 socket.c
 socket.h