initial print-only stty
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K. Lange
parent
590bfe18c5
commit
140dfae193
157
apps/stty.c
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157
apps/stty.c
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/* vim: tabstop=4 shiftwidth=4 noexpandtab
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* This file is part of ToaruOS and is released under the terms
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* of the NCSA / University of Illinois License - see LICENSE.md
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* Copyright (C) 2018 K. Lange
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <termios.h>
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#include <sys/ioctl.h>
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static void print_cc(struct termios * t, const char * lbl, int val) {
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int c = t->c_cc[val];
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if (!c) {
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fprintf(stdout, "%s = <undef>; ", lbl);
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} else if (c < 32) {
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fprintf(stdout, "%s = ^%c; ", lbl, '@' + c);
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}
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}
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static void print_flag(struct termios * t, const char * lbl, int val) {
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int c = t->c_cflag & val;
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fprintf(stdout, "%s%s ", c ? "" : "-", lbl);
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}
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static void print_iflag(struct termios * t, const char * lbl, int val) {
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int c = t->c_iflag & val;
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fprintf(stdout, "%s%s ", c ? "" : "-", lbl);
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}
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static void print_oflag(struct termios * t, const char * lbl, int val) {
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int c = t->c_oflag & val;
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fprintf(stdout, "%s%s ", c ? "" : "-", lbl);
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}
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static void print_lflag(struct termios * t, const char * lbl, int val) {
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int c = t->c_lflag & val;
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fprintf(stdout, "%s%s ", c ? "" : "-", lbl);
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}
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static int show_settings(int all) {
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/* Size */
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struct winsize w;
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ioctl(STDERR_FILENO, TIOCGWINSZ, &w);
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fprintf(stdout, "rows %d; columns %d; ypixels %d; xpixels %d;\n", w.ws_row, w.ws_col, w.ws_ypixel, w.ws_xpixel);
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struct termios t;
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tcgetattr(STDERR_FILENO, &t);
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/* Keys */
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print_cc(&t, "intr", VINTR);
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print_cc(&t, "quit", VQUIT);
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print_cc(&t, "erase", VERASE);
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print_cc(&t, "kill", VKILL);
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print_cc(&t, "eof", VEOF);
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print_cc(&t, "eol", VEOL);
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fprintf(stdout, "\n");
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print_cc(&t, "start", VSTART);
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print_cc(&t, "stop", VSTOP);
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print_cc(&t, "susp", VSUSP);
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/* MIN, TIME */
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fprintf(stdout, "min = %d; time = %d;\n", t.c_cc[VMIN], t.c_cc[VTIME]);
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print_flag(&t, "parenb", PARENB);
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print_flag(&t, "parodd", PARODD);
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switch ((t.c_cflag & CSIZE)) {
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case CS5: fprintf(stdout, "cs5 "); break;
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case CS6: fprintf(stdout, "cs6 "); break;
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case CS7: fprintf(stdout, "cs7 "); break;
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case CS8: fprintf(stdout, "cs8 "); break;
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}
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print_flag(&t, "hupcl", HUPCL);
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print_flag(&t, "cstopb", CSTOPB);
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print_flag(&t, "cread", CREAD);
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print_flag(&t, "clocal", CLOCAL);
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fprintf(stdout, "\n");
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print_iflag(&t, "ignbrk", IGNBRK);
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print_iflag(&t, "brkint", BRKINT);
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print_iflag(&t, "ignpar", IGNPAR);
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print_iflag(&t, "parmrk", PARMRK);
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print_iflag(&t, "inpck", INPCK);
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print_iflag(&t, "istrip", ISTRIP);
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print_iflag(&t, "inlcr", INLCR);
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print_iflag(&t, "ixon", IXON);
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print_iflag(&t, "ixany", IXANY);
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print_iflag(&t, "ixoff", IXOFF);
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fprintf(stdout, "\n");
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print_oflag(&t, "opost", OPOST);
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print_oflag(&t, "onlcr", ONLCR);
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print_oflag(&t, "ocrnl", OCRNL);
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print_oflag(&t, "onocr", ONOCR);
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print_oflag(&t, "onlret", ONLRET);
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print_oflag(&t, "ofill", OFILL);
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print_oflag(&t, "ofdel", OFDEL);
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switch ((t.c_oflag & CRDLY)) {
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case CR0: fprintf(stdout, "cr0 "); break;
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case CR1: fprintf(stdout, "cr1 "); break;
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case CR2: fprintf(stdout, "cr2 "); break;
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case CR3: fprintf(stdout, "cr3 "); break;
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}
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switch ((t.c_oflag & NLDLY)) {
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case NL0: fprintf(stdout, "nl0 "); break;
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case NL1: fprintf(stdout, "nl1 "); break;
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}
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switch ((t.c_oflag & TABDLY)) {
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case TAB0: fprintf(stdout, "tab0 "); break;
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case TAB1: fprintf(stdout, "tab1 "); break;
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case TAB2: fprintf(stdout, "tab2 "); break;
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case TAB3: fprintf(stdout, "tab3 "); break;
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}
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switch ((t.c_oflag & BSDLY)) {
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case BS0: fprintf(stdout, "bs0 "); break;
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case BS1: fprintf(stdout, "bs1 "); break;
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}
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switch ((t.c_oflag & FFDLY)) {
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case FF0: fprintf(stdout, "ff0 "); break;
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case FF1: fprintf(stdout, "ff1 "); break;
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}
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switch ((t.c_oflag & VTDLY)) {
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case VT0: fprintf(stdout, "vt0\n"); break;
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case VT1: fprintf(stdout, "vt1\n"); break;
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}
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print_lflag(&t, "isig", ISIG);
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print_lflag(&t, "icanon", ICANON);
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print_lflag(&t, "iexten", IEXTEN);
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print_lflag(&t, "echo", ECHO);
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print_lflag(&t, "echoe", ECHOE);
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print_lflag(&t, "echok", ECHOK);
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print_lflag(&t, "echonl", ECHONL);
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print_lflag(&t, "noflsh", NOFLSH);
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print_lflag(&t, "tostop", TOSTOP);
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fprintf(stdout, "\n");
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return 0;
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}
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int main(int argc, char * argv[]) {
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if (argc < 2) {
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return show_settings(0);
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}
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/* TODO: Process arguments */
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fprintf(stderr, "%s: argument processing not yet available\n", argv[0]);
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return 1;
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}
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