/* ARGSUSED */
int
spawncli(int f, int n)
{
/* i never thought i'd see an ifdef like this one... strange bedfellows */
#if DISP_X11 || SYS_WIN31
mlforce("[This version of vile cannot spawn an interactive shell]");
return FALSE;
#else
#if SYS_UNIX
bottomleft();
ttclean(TRUE);
TTputc('\n');
(void)system_SHELL((char *)0);
TTflush();
ttunclean();
sgarbf = TRUE;
return AfterShell();
#endif /* SYS_UNIX */
#if SYS_VMS
bottomleft();
mlforce("[Starting DCL]\r\n");
TTflush(); /* Ignore "ttcol". */
sgarbf = TRUE;
return sys(NULL); /* NULL => DCL. */
#endif
#if SYS_MSDOS || SYS_OS2 || SYS_WINNT
bottomleft();
TTflush();
TTkclose();
{
char *shell;
if ((shell = getenv("COMSPEC")) == NULL) {
#if SYS_OS2
shell = "cmd.exe";
#else
shell = "command.com";
#endif
system(shell); /* Will search path */
} else {
#if SYS_OS2
/*
* spawn it if we know it. Some 3rd party command processors fail
* if they system themselves (eg 4OS2). CCM 24-MAR-94
*/
spawnl( P_WAIT, shell, shell, NULL);
#else
system(shell);
#endif
}
}
TTkopen();
sgarbf = TRUE;
return AfterShell();
#endif
#endif
}
/*ARGSUSED*/
SIGT
rtfrmshell(int ACTUAL_SIG_ARGS)
{
#if SYS_UNIX && defined(SIGTSTP)
# if ! DISP_X11
ttunclean();
sgarbf = TRUE;
# if SYS_APOLLO
(void)TTgetc(); /* have to skip a character */
ttunclean(); /* ...so that I can finally suppress echo */
# endif
TTkopen();
setup_handler(SIGCONT,rtfrmshell); /* suspend & restart */
(void)update(TRUE);
# endif
#endif
#ifdef MDCHK_MODTIME
(void)check_visible_modtimes();
#endif
SIGRET;
}
/* the #ifdefs have been totally separated, for readability */
static int
spawn1(int rerun, int pressret)
{
#if DISP_IBMPC
int closed;
#endif
#if COMMON_SH_PROMPT
register int s;
char line[NLINE]; /* command line send to shell */
if ((s = ShellPrompt(&save_shell[0], line, rerun)) != TRUE)
return s;
#endif /* COMMON_SH_PROMPT */
/* take care of autowrite */
if (writeall(FALSE,1,FALSE,TRUE,TRUE) != TRUE)
return FALSE;
#if SYS_UNIX
#if DISP_X11
(void)system_SHELL(line);
#else
ttclean(TRUE);
(void)system_SHELL(line);
TTflush();
ttunclean();
if (pressret)
pressreturn();
TTopen();
TTkopen();
TTflush();
sgarbf = TRUE;
#endif /* DISP_X11 */
return AfterShell();
#endif /* SYS_UNIX */
#if SYS_VMS
TTputc('\n'); /* Already have '\r' */
TTflush();
s = sys(line); /* Run the command. */
mlforce("\r\n\n[End]"); /* Pause. */
TTflush();
(void)keystroke();
sgarbf = TRUE;
return (s);
#endif
#if SYS_WIN31
mlforce("[Not in Windows 3.1]");
return FALSE;
#endif
#if SYS_MSDOS || SYS_OS2 || SYS_WINNT
bottomleft();
TTputc('\n');
TTflush();
TTkclose();
#if DISP_IBMPC
/* If we don't reset to 80x25, parts of the shell-output will go
* astray.
*/
closed = term.t_ncol != 80 || term.t_nrow != 25;
if (closed)
TTclose();
#endif
system(line);
TTkopen();
/* if we are interactive, pause here */
if (pressret) {
pressreturn();
}
#if DISP_IBMPC
/* Reopen the display _after_ the prompt, to keep the shell-output
* in the same type of screen as the prompt.
*/
if (closed)
TTopen();
#endif
sgarbf = TRUE;
return AfterShell();
#endif
}
void
ttopen()
{
int s;
s = tcgetattr(0, &otermios);
if (s < 0) {
perror("ttopen tcgetattr");
ExitProgram(BAD(1));
}
/* the "|| USG" below is to support SVR4 -- let me know if
it conflicts on other systems */
#if ODT || ISC || USG
setvbuf(stdout, tobuf, _IOLBF, TBUFSIZ);
#else
setbuffer(stdout, tobuf, TBUFSIZ);
#endif
suspc = otermios.c_cc[VSUSP];
intrc = otermios.c_cc[VINTR];
killc = otermios.c_cc[VKILL];
startc = otermios.c_cc[VSTART];
stopc = otermios.c_cc[VSTOP];
backspc = otermios.c_cc[VERASE];
#ifdef VWERASE /* Sun has it. any others? */
wkillc = otermios.c_cc[VWERASE];
#else
wkillc = tocntrl('W');
#endif
/* this could probably be done more POSIX'ish? */
(void)signal(SIGTSTP,SIG_DFL); /* set signals so that we can */
(void)signal(SIGCONT,rtfrmshell); /* suspend & restart */
(void)signal(SIGTTOU,SIG_IGN); /* ignore output prevention */
#if USE_FCNTL
kbd_flags = fcntl( 0, F_GETFL, 0 );
kbd_is_polled = FALSE;
#endif
#if ! X11
ntermios = otermios;
/* setup new settings, preserve flow control, and allow BREAK */
ntermios.c_iflag = BRKINT|(otermios.c_iflag & (IXON|IXANY|IXOFF));
ntermios.c_oflag = 0;
ntermios.c_lflag = ISIG;
ntermios.c_cc[VMIN] = 1;
ntermios.c_cc[VTIME] = 0;
#ifdef VSWTCH
ntermios.c_cc[VSWTCH] = -1;
#endif
ntermios.c_cc[VSUSP] = -1;
ntermios.c_cc[VSTART] = -1;
ntermios.c_cc[VSTOP] = -1;
#endif
ttmiscinit();
ttunclean();
}
