cosmopolitan/dsp/tty/describe.c

78 lines
3.3 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ 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; version 2 of the License. │
│ │
│ 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, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "dsp/tty/tty.h"
#include "libc/fmt/fmt.h"
#include "libc/mem/mem.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/x/x.h"
#define BUFFY 48
static char *ttydescriber(char *b, const struct TtyIdent *ti) {
switch (ti->id) {
case 0:
snprintf(b, BUFFY, "%s %d", "putty", ti->version);
break;
case 1:
if (ti->version > 1000) {
snprintf(b, BUFFY, "%s %d", "gnome terminal", ti->version);
} else {
snprintf(b, BUFFY, "%s %d", "mlterm", ti->version);
}
break;
case kTtyIdScreen:
snprintf(b, BUFFY, "%s %d", "gnu screen", ti->version);
break;
case 77:
snprintf(b, BUFFY, "%s %d", "redhat mintty", ti->version);
break;
case 41:
snprintf(b, BUFFY, "%s %d", "xterm", ti->version);
break;
case 82:
snprintf(b, BUFFY, "%s %d", "rxvt", ti->version);
break;
default:
snprintf(b, BUFFY, "%s %d %d", "unknown teletypewriter no.", ti->id,
ti->version);
break;
}
return b;
}
/**
* Makes educated guess about name of teletypewriter.
*/
char *ttydescribe(char *out, size_t size, const struct TtyIdent *ti) {
char b1[BUFFY], b2[BUFFY];
if (ti) {
ttydescriber(b1, ti);
if (ti->next) {
snprintf(out, size, "%s%s%s", ttydescriber(b2, ti->next), " inside ", b1);
} else {
snprintf(out, size, "%s", b1);
}
} else {
snprintf(out, size, "%s", "no tty");
}
return out;
}