Add tty line support
Not always is desirable to create a pseudo terminal, and some times we want to open a terminal emulator over a tty line. With this new patch is possible to do someting like: $ st -l /dev/ttyS0 115200 Without this option was needed to launch another terminal emulator over st (for example minicom, picocom, cu, ...).
This commit is contained in:
parent
56abffb4b6
commit
215bdb2da3
@ -9,6 +9,7 @@ static char font[] = "Liberation Mono:pixelsize=12:antialias=false:autohint=fals
|
||||
static int borderpx = 2;
|
||||
static char shell[] = "/bin/sh";
|
||||
static char *utmp = NULL;
|
||||
static char stty_args[] = "stty raw -echo -iexten echonl";
|
||||
|
||||
/* identification sequence returned in DA and DECID */
|
||||
static char vtiden[] = "\033[?6c";
|
||||
|
37
st.1
37
st.1
@ -15,11 +15,36 @@ st \- simple terminal
|
||||
.IR file ]
|
||||
.RB [ \-t
|
||||
.IR title ]
|
||||
.RB [ \-l
|
||||
.IR line ]
|
||||
.RB [ \-w
|
||||
.IR windowid ]
|
||||
.RB [ \-v ]
|
||||
.RB [ \-e
|
||||
.IR command ...]
|
||||
.RI [ commands ...]
|
||||
.PP
|
||||
.B st
|
||||
.RB [ \-a ]
|
||||
.RB [ \-c
|
||||
.IR class ]
|
||||
.RB [ \-f
|
||||
.IR font ]
|
||||
.RB [ \-g
|
||||
.IR geometry ]
|
||||
.RB [ \-i ]
|
||||
.RB [ \-o
|
||||
.IR file ]
|
||||
.RB [ \-t
|
||||
.IR title ]
|
||||
.RB [ \-l
|
||||
.IR line ]
|
||||
.RB [ \-w
|
||||
.IR windowid ]
|
||||
.RB [ \-v ]
|
||||
.RB [ \-l
|
||||
.IR line ]
|
||||
.RI [ stty_args ...]
|
||||
.SH DESCRIPTION
|
||||
.B st
|
||||
is a simple terminal emulator.
|
||||
@ -58,6 +83,11 @@ defines the window title (default 'st').
|
||||
embeds st within the window identified by
|
||||
.I windowid
|
||||
.TP
|
||||
.BI \-l " line"
|
||||
use a tty line instead of a pseudo terminal.
|
||||
When this flag is used
|
||||
remaining arguments are used as flags for stty.
|
||||
.TP
|
||||
.B \-v
|
||||
prints version information to stderr, then exits.
|
||||
.TP
|
||||
@ -67,6 +97,9 @@ st executes
|
||||
instead of the shell. If this is used it
|
||||
.B must be the last option
|
||||
on the command line, as in xterm / rxvt.
|
||||
This option is only intended for compability,
|
||||
and all the remaining arguments are used as a command
|
||||
even without it.
|
||||
.SH SHORTCUTS
|
||||
.TP
|
||||
.B Ctrl-Print Screen
|
||||
@ -110,7 +143,9 @@ See the LICENSE file for the authors.
|
||||
.SH LICENSE
|
||||
See the LICENSE file for the terms of redistribution.
|
||||
.SH SEE ALSO
|
||||
.BR tabbed (1)
|
||||
.BR tabbed (1),
|
||||
.BR utmp (1),
|
||||
.BR stty (1)
|
||||
.SH BUGS
|
||||
See the TODO file in the distribution.
|
||||
|
||||
|
66
st.c
66
st.c
@ -352,6 +352,7 @@ static void draw(void);
|
||||
static void redraw(void);
|
||||
static void drawregion(int, int, int, int);
|
||||
static void execsh(void);
|
||||
static void stty(void);
|
||||
static void sigchld(int);
|
||||
static void run(void);
|
||||
|
||||
@ -508,6 +509,7 @@ static char *opt_title = NULL;
|
||||
static char *opt_embed = NULL;
|
||||
static char *opt_class = NULL;
|
||||
static char *opt_font = NULL;
|
||||
static char *opt_line = NULL;
|
||||
static int oldbutton = 3; /* button event on startup: 3 = release */
|
||||
|
||||
static char *usedfont = NULL;
|
||||
@ -1253,11 +1255,55 @@ sigchld(int a) {
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
stty(void)
|
||||
{
|
||||
char cmd[_POSIX_ARG_MAX], **p, *q, *s;
|
||||
size_t n, siz;
|
||||
|
||||
if((n = strlen(stty_args)) > sizeof(cmd)-1)
|
||||
die("incorrect stty parameters\n");
|
||||
memcpy(cmd, stty_args, n);
|
||||
q = cmd + n;
|
||||
siz = sizeof(cmd) - n;
|
||||
for(p = opt_cmd; p && (s = *p); ++p) {
|
||||
if((n = strlen(s)) > siz-1)
|
||||
die("stty parameter length too long\n");
|
||||
*q++ = ' ';
|
||||
q = memcpy(q, s, n);
|
||||
q += n;
|
||||
siz-= n + 1;
|
||||
}
|
||||
*q = '\0';
|
||||
system(cmd);
|
||||
}
|
||||
|
||||
void
|
||||
ttynew(void) {
|
||||
int m, s;
|
||||
struct winsize w = {term.row, term.col, 0, 0};
|
||||
|
||||
if(opt_io) {
|
||||
term.mode |= MODE_PRINT;
|
||||
iofd = (!strcmp(opt_io, "-")) ?
|
||||
STDOUT_FILENO :
|
||||
open(opt_io, O_WRONLY | O_CREAT, 0666);
|
||||
if(iofd < 0) {
|
||||
fprintf(stderr, "Error opening %s:%s\n",
|
||||
opt_io, strerror(errno));
|
||||
}
|
||||
}
|
||||
|
||||
if (opt_line) {
|
||||
if((cmdfd = open(opt_line, O_RDWR)) < 0)
|
||||
die("open line failed: %s\n", strerror(errno));
|
||||
close(STDIN_FILENO);
|
||||
dup(cmdfd);
|
||||
stty();
|
||||
return;
|
||||
}
|
||||
|
||||
/* seems to work fine on linux, openbsd and freebsd */
|
||||
if(openpty(&m, &s, NULL, NULL, &w) < 0)
|
||||
die("openpty failed: %s\n", strerror(errno));
|
||||
@ -1267,6 +1313,7 @@ ttynew(void) {
|
||||
die("fork failed\n");
|
||||
break;
|
||||
case 0:
|
||||
close(iofd);
|
||||
setsid(); /* create a new process group */
|
||||
dup2(s, STDIN_FILENO);
|
||||
dup2(s, STDOUT_FILENO);
|
||||
@ -1281,16 +1328,6 @@ ttynew(void) {
|
||||
close(s);
|
||||
cmdfd = m;
|
||||
signal(SIGCHLD, sigchld);
|
||||
if(opt_io) {
|
||||
term.mode |= MODE_PRINT;
|
||||
iofd = (!strcmp(opt_io, "-")) ?
|
||||
STDOUT_FILENO :
|
||||
open(opt_io, O_WRONLY | O_CREAT, 0666);
|
||||
if(iofd < 0) {
|
||||
fprintf(stderr, "Error opening %s:%s\n",
|
||||
opt_io, strerror(errno));
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
@ -4009,9 +4046,11 @@ run(void) {
|
||||
|
||||
void
|
||||
usage(void) {
|
||||
die("%s " VERSION " (c) 2010-2015 st engineers\n" \
|
||||
die("%s " VERSION " (c) 2010-2015 st engineers\n"
|
||||
"usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
|
||||
" [-i] [-t title] [-w windowid] [-e command ...] [command ...]\n",
|
||||
" [-i] [-t title] [-w windowid] [-e command ...] [command ...]\n"
|
||||
" st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
|
||||
" [-i] [-t title] [-w windowid] [-l line] [stty_args ...]\n",
|
||||
argv0);
|
||||
}
|
||||
|
||||
@ -4047,6 +4086,9 @@ main(int argc, char *argv[]) {
|
||||
case 'o':
|
||||
opt_io = EARGF(usage());
|
||||
break;
|
||||
case 'l':
|
||||
opt_line = EARGF(usage());
|
||||
break;
|
||||
case 't':
|
||||
opt_title = EARGF(usage());
|
||||
break;
|
||||
|
Loading…
Reference in New Issue
Block a user