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sim_console.c
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sim_console.c
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/* sim_console.c: simulator console I/O library
Copyright (c) 1993-2012, Robert M Supnik
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of Robert M Supnik shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Robert M Supnik.
18-Mar-12 RMS Removed unused reference to sim_switches (Dave Bryan)
07-Dec-11 MP Added sim_ttisatty to support reasonable behaviour (i.e.
avoid in infinite loop) in the main command input
loop when EOF is detected and input is coming from
a file (or a null device: /dev/null or NUL:) This may
happen when a simulator is running in a background
process.
17-Apr-11 MP Cleaned up to support running in a background/detached
process
20-Jan-11 MP Fixed support for BREAK key on Windows to account
for/ignore other keyboard Meta characters.
18-Jan-11 MP Added log file reference count support
17-Jan-11 MP Added support for a "Buffered" behaviors which include:
- If Buffering is enabled and Telnet is enabled, a
telnet connection is not required for simulator
operation (instruction execution).
- If Buffering is enabled, all console output is
written to the buffer at all times (deleting the
oldest buffer contents on overflow).
- when a connection is established on the console
telnet port, the whole contents of the Buffer is
presented on the telnet session and connection
will then proceed as if the connection had always
been there.
This concept allows a simulator to run in the background
and when needed a console session to be established.
The "when needed" case usually will be interested in
what already happened before looking to address what
to do, hence the buffer contents being presented.
28-Dec-10 MP Added support for BREAK key on Windows
30-Sep-06 RMS Fixed non-printable characters in KSR mode
22-Jun-06 RMS Implemented SET/SHOW PCHAR
31-May-06 JDB Fixed bug if SET CONSOLE DEBUG with no argument
22-Nov-05 RMS Added central input/output conversion support
05-Nov-04 RMS Moved SET/SHOW DEBUG under CONSOLE hierarchy
28-Oct-04 JDB Fixed SET CONSOLE to allow comma-separated parameters
20-Aug-04 RMS Added OS/2 EMX fixes (Holger Veit)
14-Jul-04 RMS Revised Windows console code (Dave Bryan)
28-May-04 RMS Added SET/SHOW CONSOLE
RMS Added break, delete character maps
02-Jan-04 RMS Removed timer routines, added Telnet console routines
RMS Moved console logging to OS-independent code
25-Apr-03 RMS Added long seek support (Mark Pizzolato)
Added Unix priority control (Mark Pizzolato)
24-Sep-02 RMS Removed VT support, added Telnet console support
Added CGI support (Brian Knittel)
Added MacOS sleep (Peter Schorn)
14-Jul-02 RMS Added Windows priority control (Mark Pizzolato)
20-May-02 RMS Added Windows VT support (Fischer Franz)
01-Feb-02 RMS Added VAX fix (Robert Alan Byer)
19-Sep-01 RMS More MacOS changes
31-Aug-01 RMS Changed int64 to t_int64 for Windoze
20-Jul-01 RMS Added Macintosh support (Louis Chretien, Peter Schorn, Ben Supnik)
15-May-01 RMS Added logging support
05-Mar-01 RMS Added clock calibration support
08-Dec-00 BKR Added OS/2 support (Bruce Ray)
18-Aug-98 RMS Added BeOS support
13-Oct-97 RMS Added NetBSD terminal support
25-Jan-97 RMS Added POSIX terminal I/O support
02-Jan-97 RMS Fixed bug in sim_poll_kbd
This module implements the following routines to support terminal and
Remote Console I/O:
sim_poll_kbd poll for keyboard input
sim_putchar output character to console
sim_putchar_s output character to console, stall if congested
sim_set_console set console parameters
sim_show_console show console parameters
sim_set_remote_console set remote console parameters
sim_show_remote_console show remote console parameters
sim_set_cons_buff set console buffered
sim_set_cons_unbuff set console unbuffered
sim_set_cons_log set console log
sim_set_cons_nolog set console nolog
sim_show_cons_buff show console buffered
sim_show_cons_log show console log
sim_tt_inpcvt convert input character per mode
sim_tt_outcvt convert output character per mode
sim_ttinit called once to get initial terminal state
sim_ttrun called to put terminal into run state
sim_ttcmd called to return terminal to command state
sim_ttclose called once before the simulator exits
sim_ttisatty called to determine if running interactively
sim_os_poll_kbd poll for keyboard input
sim_os_putchar output character to console
The first group is OS-independent; the second group is OS-dependent.
The following routines are exposed but deprecated:
sim_set_telnet set console to Telnet port
sim_set_notelnet close console Telnet port
sim_show_telnet show console status
*/
#include "sim_defs.h"
#include "sim_tmxr.h"
#include "sim_serial.h"
#include "sim_timer.h"
#include <ctype.h>
/* Forward Declaraations of Platform specific routines */
static t_stat sim_os_poll_kbd (void);
static t_bool sim_os_poll_kbd_ready (int ms_timeout);
static t_stat sim_os_putchar (int32 out);
static t_stat sim_os_ttinit (void);
static t_stat sim_os_ttrun (void);
static t_stat sim_os_ttcmd (void);
static t_stat sim_os_ttclose (void);
static t_bool sim_os_ttisatty (void);
static t_stat sim_set_rem_telnet (int32 flag, char *cptr);
static t_stat sim_set_rem_connections (int32 flag, char *cptr);
static t_stat sim_set_rem_timeout (int32 flag, char *cptr);
#define KMAP_WRU 0
#define KMAP_BRK 1
#define KMAP_DEL 2
#define KMAP_MASK 0377
#define KMAP_NZ 0400
int32 sim_int_char = 005; /* interrupt character */
int32 sim_brk_char = 000; /* break character */
int32 sim_tt_pchar = 0x00002780;
#if defined (_WIN32) || defined (__OS2__) || (defined (__MWERKS__) && defined (macintosh))
int32 sim_del_char = '\b'; /* delete character */
#else
int32 sim_del_char = 0177;
#endif
static t_stat sim_con_poll_svc (UNIT *uptr); /* console connection poll routine */
static t_stat sim_con_reset (DEVICE *dptr); /* console reset routine */
UNIT sim_con_unit = { UDATA (&sim_con_poll_svc, 0, 0) }; /* console connection unit */
/* debugging bitmaps */
#define DBG_TRC TMXR_DBG_TRC /* trace routine calls */
#define DBG_XMT TMXR_DBG_XMT /* display Transmitted Data */
#define DBG_RCV TMXR_DBG_RCV /* display Received Data */
#define DBG_RET TMXR_DBG_RET /* display Returned Received Data */
#define DBG_ASY TMXR_DBG_ASY /* asynchronous thread activity */
typedef struct printer_cb {
struct printer_cb *next;
UNIT *unit;
t_stat (*callback)(UNIT *unit);
} PRINTCB;
static PRINTCB *printers = NULL;
static DEBTAB sim_con_debug[] = {
{"TRC", DBG_TRC},
{"XMT", DBG_XMT},
{"RCV", DBG_RCV},
{"RET", DBG_RET},
{"ASY", DBG_ASY},
{0}
};
static MTAB sim_con_mod[] = {
{ 0 },
};
DEVICE sim_con_telnet = {
"CON-TEL", &sim_con_unit, NULL, sim_con_mod,
1, 0, 0, 0, 0, 0,
NULL, NULL, sim_con_reset, NULL, NULL, NULL,
NULL, DEV_DEBUG, 0, sim_con_debug};
TMLN sim_con_ldsc = { 0 }; /* console line descr */
TMXR sim_con_tmxr = { 1, 0, 0, &sim_con_ldsc, NULL, &sim_con_telnet };/* console line mux */
/* Unit service for console connection polling */
static t_stat sim_con_poll_svc (UNIT *uptr)
{
if ((sim_con_tmxr.master == 0) && /* not Telnet and not serial? */
(sim_con_ldsc.serport == 0))
return SCPE_OK; /* done */
if (tmxr_poll_conn (&sim_con_tmxr) >= 0) /* poll connect */
sim_con_ldsc.rcve = 1; /* rcv enabled */
sim_activate_after(uptr, 1000000); /* check again in 1 second */
if (sim_con_ldsc.conn)
tmxr_send_buffered_data (&sim_con_ldsc); /* try to flush any buffered data */
return SCPE_OK;
}
static t_stat sim_con_reset (DEVICE *dptr)
{
return sim_con_poll_svc (&dptr->units[0]); /* establish polling as needed */
}
/* Set/show data structures */
static CTAB set_con_tab[] = {
{ "WRU", &sim_set_kmap, KMAP_WRU | KMAP_NZ },
{ "BRK", &sim_set_kmap, KMAP_BRK },
{ "DEL", &sim_set_kmap, KMAP_DEL |KMAP_NZ },
{ "PCHAR", &sim_set_pchar, 0 },
{ "TELNET", &sim_set_telnet, 0 },
{ "NOTELNET", &sim_set_notelnet, 0 },
{ "SERIAL", &sim_set_serial, 0 },
{ "NOSERIAL", &sim_set_noserial, 0 },
{ "LOG", &sim_set_logon, 0 },
{ "NOLOG", &sim_set_logoff, 0 },
{ "DEBUG", &sim_set_debon, 0 },
{ "NODEBUG", &sim_set_deboff, 0 },
{ NULL, NULL, 0 }
};
static CTAB set_rem_con_tab[] = {
{ "CONNECTIONS", &sim_set_rem_connections, 0 },
{ "TELNET", &sim_set_rem_telnet, 1 },
{ "NOTELNET", &sim_set_rem_telnet, 0 },
{ "TIMEOUT", &sim_set_rem_timeout, 0 },
{ NULL, NULL, 0 }
};
static SHTAB show_con_tab[] = {
{ "WRU", &sim_show_kmap, KMAP_WRU },
{ "BRK", &sim_show_kmap, KMAP_BRK },
{ "DEL", &sim_show_kmap, KMAP_DEL },
{ "PCHAR", &sim_show_pchar, 0 },
{ "LOG", &sim_show_cons_log, 0 },
{ "TELNET", &sim_show_telnet, 0 },
{ "DEBUG", &sim_show_cons_debug, 0 },
{ "BUFFERED", &sim_show_cons_buff, 0 },
{ NULL, NULL, 0 }
};
static CTAB set_con_telnet_tab[] = {
{ "LOG", &sim_set_cons_log, 0 },
{ "NOLOG", &sim_set_cons_nolog, 0 },
{ "BUFFERED", &sim_set_cons_buff, 0 },
{ "NOBUFFERED", &sim_set_cons_unbuff, 0 },
{ "UNBUFFERED", &sim_set_cons_unbuff, 0 },
{ NULL, NULL, 0 }
};
static CTAB set_con_serial_tab[] = {
{ "LOG", &sim_set_cons_log, 0 },
{ "NOLOG", &sim_set_cons_nolog, 0 },
{ NULL, NULL, 0 }
};
static int32 *cons_kmap[] = {
&sim_int_char,
&sim_brk_char,
&sim_del_char
};
/* Console I/O package.
The console terminal can be attached to the controlling window
or to a Telnet connection. If attached to a Telnet connection,
the console is described by internal terminal multiplexor
sim_con_tmxr and internal terminal line description sim_con_ldsc.
*/
/* Register a printer for the PRINT comand
*/
t_stat sim_con_register_printer (UNIT *uptr, t_stat (*callback)(UNIT *unit))
{
PRINTCB *p;
for (p = printers; p != NULL; p = p->next) {
if (p->unit == uptr)
break;
}
if (!p) {
p = (PRINTCB *) malloc (sizeof (PRINTCB));
if (!p)
return SCPE_MEM;
p->next = printers;
printers = p;
p->unit = uptr;
}
p->callback = callback;
return SCPE_OK;
}
/* PRINT command
*/
t_stat print_cmd (int32 flag, char *cptr)
{
PRINTCB *p;
int printcount = 0;
int r = SCPE_EOF;
if (!cptr || *cptr)
return SCPE_ARG;
for (p = printers; p != NULL; p = p->next) {
++printcount;
if (p->callback != NULL) {
if (p->callback (p->unit) == SCPE_OK)
r = SCPE_OK;
}
}
if (printers == NULL) {
printf ("No spoolable printers\r\n");
if (sim_log)
fprintf (sim_log, "No spoolable printers\r\n");
}
else
if (r == SCPE_OK) {
printf ("Printer file%s released\r\n", (printcount > 1) ? "(s)" : "");
if (sim_log)
fprintf (sim_log, "Printer file%s released\r\n", (printcount > 1) ? "(s)" : "");
}
else {
printf ("Nothing to ready to print\n");
if (sim_log)
fprintf (sim_log, "Nothing ready to print\r\n");
}
return SCPE_OK;
}
/* SET CONSOLE command */
t_stat sim_set_console (int32 flag, char *cptr)
{
char *cvptr, gbuf[CBUFSIZE];
CTAB *ctptr;
t_stat r;
if ((cptr == NULL) || (*cptr == 0))
return SCPE_2FARG;
while (*cptr != 0) { /* do all mods */
cptr = get_glyph_nc (cptr, gbuf, ','); /* get modifier */
if ((cvptr = strchr (gbuf, '='))) /* = value? */
*cvptr++ = 0;
get_glyph (gbuf, gbuf, 0); /* modifier to UC */
if ((ctptr = find_ctab (set_con_tab, gbuf))) { /* match? */
r = ctptr->action (ctptr->arg, cvptr); /* do the rest */
if (r != SCPE_OK)
return r;
}
else return SCPE_NOPARAM;
}
return SCPE_OK;
}
/* SHOW CONSOLE command */
t_stat sim_show_console (FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, char *cptr)
{
char gbuf[CBUFSIZE];
SHTAB *shptr;
int32 i;
if (*cptr == 0) { /* show all */
for (i = 0; show_con_tab[i].name; i++)
show_con_tab[i].action (st, dptr, uptr, show_con_tab[i].arg, cptr);
return SCPE_OK;
}
while (*cptr != 0) {
cptr = get_glyph (cptr, gbuf, ','); /* get modifier */
if ((shptr = find_shtab (show_con_tab, gbuf)))
shptr->action (st, dptr, uptr, shptr->arg, cptr);
else return SCPE_NOPARAM;
}
return SCPE_OK;
}
t_stat sim_rem_con_poll_svc (UNIT *uptr); /* remote console connection poll routine */
t_stat sim_rem_con_data_svc (UNIT *uptr); /* remote console connection data routine */
t_stat sim_rem_con_reset (DEVICE *dptr); /* remote console reset routine */
UNIT sim_rem_con_unit[2] = {
{ UDATA (&sim_rem_con_poll_svc, 0, 0) }, /* remote console connection polling unit */
{ UDATA (&sim_rem_con_data_svc, 0, 0) }}; /* console data handling unit */
DEBTAB sim_rem_con_debug[] = {
{"TRC", DBG_TRC},
{"XMT", DBG_XMT},
{"RCV", DBG_RCV},
{0}
};
MTAB sim_rem_con_mod[] = {
{ 0 },
};
DEVICE sim_remote_console = {
"REM-CON", sim_rem_con_unit, NULL, sim_rem_con_mod,
2, 0, 0, 0, 0, 0,
NULL, NULL, sim_rem_con_reset, NULL, NULL, NULL,
NULL, DEV_DEBUG, 0, sim_rem_con_debug};
#define MAX_REMOTE_SESSIONS 40 /* Arbitrary Session Limit */
static int32 *sim_rem_buf_size = NULL;
static int32 *sim_rem_buf_ptr = NULL;
static char **sim_rem_buf = NULL;
static t_bool *sim_rem_single_mode = NULL; /* per line command mode (single command or must continue) */
static TMXR sim_rem_con_tmxr = { 0, 0, 0, NULL, NULL, &sim_remote_console };/* remote console line mux */
static uint32 sim_rem_read_timeout = 30; /* seconds before automatic continue */
static int32 sim_rem_step_line = -1; /* step in progress on line # */
static t_bool sim_log_temp = FALSE; /* temporary log file active */
static char sim_rem_con_temp_name[PATH_MAX+1];
/* SET REMOTE CONSOLE command */
t_stat sim_set_remote_console (int32 flag, char *cptr)
{
char *cvptr, gbuf[CBUFSIZE];
CTAB *ctptr;
t_stat r;
if ((cptr == NULL) || (*cptr == 0))
return SCPE_2FARG;
while (*cptr != 0) { /* do all mods */
cptr = get_glyph_nc (cptr, gbuf, ','); /* get modifier */
if ((cvptr = strchr (gbuf, '='))) /* = value? */
*cvptr++ = 0;
get_glyph (gbuf, gbuf, 0); /* modifier to UC */
if ((ctptr = find_ctab (set_rem_con_tab, gbuf))) { /* match? */
r = ctptr->action (ctptr->arg, cvptr); /* do the rest */
if (r != SCPE_OK)
return r;
}
else return SCPE_NOPARAM;
}
return SCPE_OK;
}
/* SHOW REMOTE CONSOLE command */
t_stat sim_show_remote_console (FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, char *cptr)
{
int32 i, connections;
TMLN *lp;
if (*cptr != 0)
return SCPE_NOPARAM;
if (sim_rem_con_tmxr.lines > 1)
fprintf (st, "Remote Console Input Connections from %d sources are supported concurrently\n", sim_rem_con_tmxr.lines);
if (sim_rem_read_timeout)
fprintf (st, "Remote Console Input automatically continues after %d seconds\n", sim_rem_read_timeout);
if (!sim_rem_con_tmxr.master)
fprintf (st, "Remote Console Command input is disabled\n");
else
fprintf (st, "Remote Console Command Input listening on TCP port: %s\n", sim_rem_con_unit[0].filename);
for (i=connections=0; i<sim_rem_con_tmxr.lines; i++) {
lp = &sim_rem_con_tmxr.ldsc[i];
if (!lp->conn)
continue;
++connections;
if (connections == 1)
fprintf (st, "Remote Console Connections:\n");
tmxr_fconns (st, lp, i);
}
return SCPE_OK;
}
/* Unit service for remote console connection polling */
t_stat sim_rem_con_poll_svc (UNIT *uptr)
{
int32 c;
c = tmxr_poll_conn (&sim_rem_con_tmxr);
if (c >= 0) { /* poll connect */
TMLN *lp = &sim_rem_con_tmxr.ldsc[c];
char wru_name[8];
sim_activate_after(uptr+1, 1000000); /* start data poll after 1 second */
lp->rcve = 1; /* rcv enabled */
sim_rem_buf_ptr[c] = 0; /* start with empty command buffer */
sim_rem_single_mode[c] = FALSE; /* in single command mode */
if (isprint(sim_int_char&0xFF))
sprintf(wru_name, "'%c'", sim_int_char&0xFF);
else
if (sim_int_char <= 26)
sprintf(wru_name, "^%c", '@' + (sim_int_char&0xFF));
else
sprintf(wru_name, "'\\%03o'", sim_int_char&0xFF);
tmxr_linemsgf (lp, "%s Remote Console\r\n"
"Enter single commands or to enter multiple command mode enter the %s character\r\n"
"Simulator Running...", sim_name, wru_name);
tmxr_send_buffered_data (lp); /* flush buffered data */
}
sim_activate_after(uptr, 1000000); /* check again in 1 second */
if (sim_con_ldsc.conn)
tmxr_send_buffered_data (&sim_con_ldsc); /* try to flush any buffered data */
return SCPE_OK;
}
static t_stat x_continue_cmd (int32 flag, char *cptr)
{
return SCPE_IERR; /* This routine should never be called */
}
static t_stat x_step_cmd (int32 flag, char *cptr)
{
return SCPE_IERR; /* This routine should never be called */
}
static t_stat x_help_cmd (int32 flag, char *cptr);
#define EX_D 0 /* deposit */
#define EX_E 1 /* examine */
#define EX_I 2 /* interactive */
static CTAB allowed_remote_cmds[] = {
{ "EXAMINE", &exdep_cmd, EX_E },
{ "IEXAMINE", &exdep_cmd, EX_E+EX_I },
{ "DEPOSIT", &exdep_cmd, EX_D },
{ "EVALUATE", &eval_cmd, 0 },
{ "ATTACH", &attach_cmd, 0 },
{ "DETACH", &detach_cmd, 0 },
{ "ASSIGN", &assign_cmd, 0 },
{ "DEASSIGN", &deassign_cmd, 0 },
{ "CONTINUE", &x_continue_cmd, 0 },
{ "STEP", &x_step_cmd, 0 },
{ "PRINT", &print_cmd, 1 },
{ "PWD", &pwd_cmd, 0 },
{ "SAVE", &save_cmd, 0 },
{ "DIR", &dir_cmd, 0 },
{ "LS", &dir_cmd, 0 },
{ "ECHO", &echo_cmd, 0 },
{ "SET", &set_cmd, 0 },
{ "SHOW", &show_cmd, 0 },
{ "HELP", &x_help_cmd, SCP_HELP_ONECMD },
{ NULL, NULL }
};
static CTAB allowed_single_remote_cmds[] = {
{ "ATTACH", &attach_cmd, 0 },
{ "DETACH", &detach_cmd, 0 },
{ "PRINT", &print_cmd, 1 },
{ "PWD", &pwd_cmd, 0 },
{ "DIR", &dir_cmd, 0 },
{ "LS", &dir_cmd, 0 },
{ "ECHO", &echo_cmd, 0 },
{ "SHOW", &show_cmd, 0 },
{ "HELP", &x_help_cmd, SCP_HELP_ONECMD },
{ NULL, NULL }
};
static t_stat x_help_cmd (int32 flag, char *cptr)
{
CTAB *cmdp, *cmdph;
if (*cptr)
return help_cmd (flag, cptr);
printf ("Remote Console Commands:\r\n");
if (sim_log)
fprintf (sim_log, "Remote Console Commands:\r\n");
for (cmdp=allowed_remote_cmds; cmdp->name != NULL; ++cmdp) {
cmdph = find_cmd (cmdp->name);
if (cmdph && cmdph->help) {
printf ("%s", cmdph->help);
if (sim_log)
fprintf (sim_log, "%s", cmdph->help);
}
}
return SCPE_OK;
}
/* Unit service for remote console data polling */
t_stat sim_rem_con_data_svc (UNIT *uptr)
{
int32 i, j, c = 0;
t_stat stat, stat_nomessage;
t_bool stepping = FALSE;
int32 steps = 1;
t_bool was_stepping = (sim_rem_step_line != -1);
t_bool got_command;
t_bool close_session = FALSE;
TMLN *lp;
char cbuf[4*CBUFSIZE], gbuf[CBUFSIZE], *cptr, *argv[1] = {NULL};
CTAB *cmdp = NULL;
uint32 read_start_time = 0;
t_offset cmd_log_start;
tmxr_poll_rx (&sim_rem_con_tmxr); /* poll input */
for (i=(was_stepping ? sim_rem_step_line : 0);
(i < sim_rem_con_tmxr.lines) && (!stepping);
i++) {
lp = &sim_rem_con_tmxr.ldsc[i];
if (!lp->conn)
continue;
if (was_stepping) {
sim_rem_step_line = -1; /* Done with step */
stat = SCPE_STEP;
cmdp = find_cmd ("STEP");
stat_nomessage = stat & SCPE_NOMESSAGE; /* extract possible message supression flag */
stat = SCPE_BARE_STATUS(stat); /* remove possible flag */
if (!stat_nomessage) { /* displaying message status? */
fflush (sim_log);
cmd_log_start = sim_ftell (sim_log);
if (cmdp && (cmdp->message)) /* special message handler? */
cmdp->message (NULL, stat); /* let it deal with display */
else
if (stat >= SCPE_BASE) { /* error? */
printf ("%s\r\n", sim_error_text (stat));
if (sim_log)
fprintf (sim_log, "%s\n", sim_error_text (stat));
}
fflush (sim_log);
sim_fseeko (sim_log, cmd_log_start, SEEK_SET);
cbuf[sizeof(cbuf)-1] = '\0';
while (fgets (cbuf, sizeof(cbuf)-1, sim_log)) {
tmxr_linemsgf (lp, "%s", cbuf);
tmxr_send_buffered_data (lp);
}
}
}
else {
c = tmxr_getc_ln (lp);
if (!(TMXR_VALID & c))
continue;
c = c & ~TMXR_VALID;
if (!sim_rem_single_mode[i]) {
if (c == sim_int_char) { /* ^E (the interrupt character) must start continue mode console interaction */
sim_is_running = 0;
sim_stop_timer_services ();
for (j=0; j < sim_rem_con_tmxr.lines; j++) {
lp = &sim_rem_con_tmxr.ldsc[j];
if ((i == j) || (!lp->conn))
continue;
tmxr_linemsgf (lp, "\nRemote Console(%s) Entering Commands\n", lp->ipad);
tmxr_send_buffered_data (lp); /* flush any buffered data */
}
lp = &sim_rem_con_tmxr.ldsc[i];
tmxr_linemsg (lp, "\r\nSimulator paused.\r\n");
if (sim_rem_read_timeout)
tmxr_linemsgf (lp, "Simulation will resume automatically if input is not received in %d seconds\n", sim_rem_read_timeout);
}
else {
if ((c == '\n') || /* Ignore bare LF between commands (Microsoft Telnet bug) */
(c == '\r')) /* Ignore empty commands */
continue;
if ((c == '\004') || (c == '\032')) { /* EOF character (^D or ^Z) ? */
tmxr_linemsgf (lp, "\r\nGoodbye\r\n");
tmxr_send_buffered_data (lp); /* flush any buffered data */
tmxr_reset_ln (lp);
continue;
}
sim_rem_single_mode[i] = TRUE;
tmxr_linemsgf (lp, "\r\n%s", sim_prompt);
tmxr_send_buffered_data (lp); /* flush any buffered data */
}
}
}
got_command = FALSE;
while (1) {
if (!sim_rem_single_mode[i]) {
read_start_time = sim_os_msec();
tmxr_linemsg (lp, sim_prompt);
tmxr_send_buffered_data (lp); /* flush any buffered data */
}
do {
if (!sim_rem_single_mode[i]) {
c = tmxr_getc_ln (lp);
if (!(TMXR_VALID & c)) {
tmxr_send_buffered_data (lp); /* flush any buffered data */
if (sim_rem_read_timeout &&
((sim_os_msec() - read_start_time)/1000 >= sim_rem_read_timeout)) {
while (sim_rem_buf_ptr[i] > 0) { /* Erase current input line */
tmxr_linemsg (lp, "\b \b");
--sim_rem_buf_ptr[i];
}
if (sim_rem_buf_ptr[i]+80 >= sim_rem_buf_size[i]) {
sim_rem_buf_size[i] += 1024;
sim_rem_buf[i] = (char *)realloc (sim_rem_buf[i], sim_rem_buf_size[i]);
}
strcpy (sim_rem_buf[i], "CONTINUE ! Automatic continue due to timeout");
tmxr_linemsgf (lp, "%s\n", sim_rem_buf[i]);
got_command = TRUE;
break;
}
sim_os_ms_sleep (100);
tmxr_poll_rx (&sim_rem_con_tmxr);/* poll input */
continue;
}
read_start_time = sim_os_msec();
c = c & ~TMXR_VALID;
}
switch (c) {
case 0: /* no data */
break;
case '\b': /* Backspace */
case 127: /* Rubout */
if (sim_rem_buf_ptr[i] > 0) {
tmxr_linemsg (lp, "\b \b");
--sim_rem_buf_ptr[i];
}
break;
case 27: /* escape */
case 21: /* ^U */
while (sim_rem_buf_ptr[i] > 0) {
tmxr_linemsg (lp, "\b \b");
--sim_rem_buf_ptr[i];
}
break;
case '\n':
if (sim_rem_buf_ptr[i] == 0)
break;
case '\r':
tmxr_linemsg (lp, "\r\n");
if (sim_rem_buf_ptr[i]+1 >= sim_rem_buf_size[i]) {
sim_rem_buf_size[i] += 1024;
sim_rem_buf[i] = (char *)realloc (sim_rem_buf[i], sim_rem_buf_size[i]);
}
sim_rem_buf[i][sim_rem_buf_ptr[i]++] = '\0';
got_command = TRUE;
break;
case '\004': /* EOF (^D) */
case '\032': /* EOF (^Z) */
while (sim_rem_buf_ptr[i] > 0) { /* Erase current input line */
tmxr_linemsg (lp, "\b \b");
--sim_rem_buf_ptr[i];
}
if (!sim_rem_single_mode[i]) {
if (sim_rem_buf_ptr[i]+80 >= sim_rem_buf_size[i]) {
sim_rem_buf_size[i] += 1024;
sim_rem_buf[i] = (char *)realloc (sim_rem_buf[i], sim_rem_buf_size[i]);
}
strcpy (sim_rem_buf[i], "CONTINUE ! Automatic continue before close");
tmxr_linemsgf (lp, "%s\n", sim_rem_buf[i]);
got_command = TRUE;
}
close_session = TRUE;
break;
case '\020': /* PRINT (^P) */
while (sim_rem_buf_ptr[i] > 0) {
tmxr_linemsg (lp, "\b \b");
--sim_rem_buf_ptr[i];
}
if (sim_rem_buf_ptr[i]+80 >= sim_rem_buf_size[i]) {
sim_rem_buf_size[i] += 1024;
sim_rem_buf[i] = (char *) realloc (sim_rem_buf[i], sim_rem_buf_size[i]);
}
strcpy (sim_rem_buf[i], "PRINT");
tmxr_linemsgf (lp, "%s\n", sim_rem_buf[i]);
got_command = TRUE;
break;
default:
tmxr_putc_ln (lp, c);
if (sim_rem_buf_ptr[i]+2 >= sim_rem_buf_size[i]) {
sim_rem_buf_size[i] += 1024;
sim_rem_buf[i] = (char *)realloc (sim_rem_buf[i], sim_rem_buf_size[i]);
}
sim_rem_buf[i][sim_rem_buf_ptr[i]++] = c;
sim_rem_buf[i][sim_rem_buf_ptr[i]] = '\0';
if (((size_t)sim_rem_buf_ptr[i]) >= sizeof(cbuf))
got_command = TRUE; /* command too long */
break;
}
} while ((!got_command) && (!sim_rem_single_mode[i]));
tmxr_send_buffered_data (lp); /* flush any buffered data */
if ((sim_rem_single_mode[i]) && !got_command) {
break;
}
printf ("Remote Console Command from %s> %s\r\n", lp->ipad, sim_rem_buf[i]);
if (sim_log)
fprintf (sim_log, "Remote Console Command from %s> %s\n", lp->ipad, sim_rem_buf[i]);
got_command = FALSE;
if (strlen(sim_rem_buf[i]) >= sizeof(cbuf)) {
printf ("\nLine too long. Ignored. Continuing Simulator execution\n");
if (sim_log)
fprintf (sim_log, "\r\nLine too long. Ignored. Continuing Simulator execution\r\n");
tmxr_linemsgf (lp, "\nLine too long. Ignored. Continuing Simulator execution\n");
tmxr_send_buffered_data (lp); /* try to flush any buffered data */
break;
}
strcpy (cbuf, sim_rem_buf[i]);
sim_rem_buf_ptr[i] = 0;
sim_rem_buf[i][sim_rem_buf_ptr[i]] = '\0';
if (cbuf[0] == '\0') {
if (sim_rem_single_mode[i]) {
sim_rem_single_mode[i] = FALSE;
break;
}
else
continue;
}
sim_sub_args (cbuf, sizeof(cbuf), argv);
cptr = cbuf;
cptr = get_glyph (cptr, gbuf, 0); /* get command glyph */
sim_switches = 0; /* init switches */
if (!sim_log) { /* Not currently logging? */
int32 save_quiet = sim_quiet;
sim_quiet = 1;
sprintf (sim_rem_con_temp_name, "sim_remote_console_%d.temporary_log", (int)getpid());
sim_set_logon (0, sim_rem_con_temp_name);
sim_quiet = save_quiet;
sim_log_temp = TRUE;
}
cmd_log_start = sim_ftell (sim_log);
if (!find_cmd (gbuf)) /* validate command */
stat = SCPE_UNK;
else {
if ((cmdp = find_ctab (sim_rem_single_mode[i] ? allowed_single_remote_cmds : allowed_remote_cmds, gbuf))) {/* lookup command */
if (cmdp->action == &x_continue_cmd)
stat = SCPE_OK;
else {
if (cmdp->action == &x_step_cmd) {
steps = 1; /* default of 1 instruction */
stat = SCPE_OK;
if (*cptr != 0) { /* argument? */
cptr = get_glyph (cptr, gbuf, 0);/* get next glyph */
if (*cptr != 0) /* should be end */
stat = SCPE_2MARG;
else {
steps = (int32) get_uint (gbuf, 10, INT_MAX, &stat);
if ((stat != SCPE_OK) || (steps <= 0)) /* error? */
stat = SCPE_ARG;
}
}
if (stat == SCPE_OK)
stepping = TRUE;
else
cmdp = NULL;
}
else
stat = cmdp->action (cmdp->arg, cptr);
}
}
else
stat = SCPE_INVREM;
}
stat_nomessage = stat & SCPE_NOMESSAGE; /* extract possible message supression flag */
stat = SCPE_BARE_STATUS(stat); /* remove possible flag */
if (!stat_nomessage) { /* displaying message status? */
if (cmdp && (cmdp->message)) /* special message handler? */
cmdp->message (NULL, stat); /* let it deal with display */
else
if (stat >= SCPE_BASE) { /* error? */
printf ("%s\r\n", sim_error_text (stat));
if (sim_log)
fprintf (sim_log, "%s\n", sim_error_text (stat));
}
}
fflush (sim_log);
sim_fseeko (sim_log, cmd_log_start, SEEK_SET);
cbuf[sizeof(cbuf)-1] = '\0';
while (fgets (cbuf, sizeof(cbuf)-1, sim_log)) {
int32 unwritten;
tmxr_linemsgf (lp, "%s", cbuf);
do {
unwritten = tmxr_send_buffered_data (lp);
if (unwritten == lp->txbsz)
sim_os_ms_sleep (100);
} while (unwritten == lp->txbsz);
}
if ((cmdp && (cmdp->action == &x_continue_cmd)) ||
(sim_rem_single_mode[i])) {
sim_rem_step_line = -1; /* Not stepping */
if (sim_log_temp) { /* If we setup a temporary log, clean it now */
int32 save_quiet = sim_quiet;
sim_quiet = 1;
sim_set_logoff (0, NULL);
sim_quiet = save_quiet;
remove (sim_rem_con_temp_name);
sim_log_temp = FALSE;
}
if (!sim_rem_single_mode[i]) {
tmxr_linemsg (lp, "Simulator Running...");
tmxr_send_buffered_data (lp);
for (j=0; j < sim_rem_con_tmxr.lines; j++) {
lp = &sim_rem_con_tmxr.ldsc[j];
if ((i == j) || (!lp->conn))
continue;
tmxr_linemsg (lp, "Simulator Running...");
tmxr_send_buffered_data (lp);
}
sim_is_running = 1;
sim_start_timer_services ();
}
sim_rem_single_mode[i] = FALSE;
break;
}
if (cmdp && (cmdp->action == &x_step_cmd)) {
sim_rem_step_line = i;
break;
}
}
if (close_session) {
tmxr_linemsgf (lp, "\r\nGoodbye\r\n");
tmxr_send_buffered_data (lp); /* flush any buffered data */
tmxr_reset_ln (lp);
sim_rem_single_mode[i] = FALSE;
}
}
if (stepping)
sim_activate(uptr, steps); /* check again after 'steps' instructions */
else
sim_activate_after(uptr, 100000); /* check again in 100 milliaeconds */
return SCPE_OK;
}
t_stat sim_rem_con_reset (DEVICE *dptr)
{
if (sim_rem_con_tmxr.lines)
return sim_rem_con_poll_svc (&dptr->units[0]); /* establish polling as needed */
return SCPE_OK;
}
static t_stat sim_set_rem_telnet (int32 flag, char *cptr)
{
t_stat r;
if (flag) {
r = sim_parse_addr (cptr, NULL, 0, NULL, NULL, 0, NULL, NULL);
if (r == SCPE_OK) {
if (sim_rem_con_tmxr.master) /* already open? */
sim_set_rem_telnet (0, NULL); /* close first */
if (sim_rem_con_tmxr.lines == 0) /* Ir no connection limit set */
sim_set_rem_connections (0, "1"); /* use 1 */
sim_register_internal_device (&sim_remote_console);
r = tmxr_attach (&sim_rem_con_tmxr, &sim_rem_con_unit[0], cptr);/* open master socket */
if (r == SCPE_OK)
sim_activate_after(&sim_rem_con_unit[0], 1000000); /* check for connection in 1 second */
return r;
}
return SCPE_NOPARAM;
}
else {
if (sim_rem_con_tmxr.master) {
int32 i;
tmxr_detach (&sim_rem_con_tmxr, &sim_rem_con_unit[0]);
for (i=0; i<sim_rem_con_tmxr.lines; i++) {
free (sim_rem_buf[i]);
sim_rem_buf[i] = NULL;
sim_rem_buf_size[i] = 0;
sim_rem_buf_ptr[i] = 0;
sim_rem_single_mode[i] = FALSE;
}
}
}
return SCPE_OK;
}
static t_stat sim_set_rem_connections (int32 flag, char *cptr)
{
int32 lines;
t_stat r;
int32 i;
if (cptr == NULL)
return SCPE_ARG;
lines = (int32) get_uint (cptr, 10, MAX_REMOTE_SESSIONS, &r);
if (r != SCPE_OK)
return r;
if (sim_rem_con_tmxr.master)
return SCPE_ARG;
for (i=0; i<sim_rem_con_tmxr.lines; i++)
free (sim_rem_buf[i]);
sim_rem_con_tmxr.lines = lines;
sim_rem_con_tmxr.ldsc = (TMLN *)realloc (sim_rem_con_tmxr.ldsc, sizeof(*sim_rem_con_tmxr.ldsc)*lines);
memset (sim_rem_con_tmxr.ldsc, 0, sizeof(*sim_rem_con_tmxr.ldsc)*lines);
sim_rem_buf = (char **)realloc (sim_rem_buf, sizeof(*sim_rem_buf)*lines);
memset (sim_rem_buf, 0, sizeof(*sim_rem_buf)*lines);
sim_rem_buf_size = (int32 *)realloc (sim_rem_buf_size, sizeof(*sim_rem_buf_size)*lines);
memset (sim_rem_buf_size, 0, sizeof(*sim_rem_buf_size)*lines);
sim_rem_buf_ptr = (int32 *)realloc (sim_rem_buf_ptr, sizeof(*sim_rem_buf_ptr)*lines);
memset (sim_rem_buf_ptr, 0, sizeof(*sim_rem_buf_ptr)*lines);
sim_rem_single_mode = (t_bool *)realloc (sim_rem_single_mode, sizeof(*sim_rem_single_mode)*lines);
memset (sim_rem_single_mode, 0, sizeof(*sim_rem_single_mode)*lines);
return SCPE_OK;
}
static t_stat sim_set_rem_timeout (int32 flag, char *cptr)
{
int32 timeout;
t_stat r;
if (cptr == NULL)
return SCPE_ARG;
timeout = (int32) get_uint (cptr, 10, 3600, &r);