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freebsd-dev/usr.sbin/vidcontrol/vidcontrol.c
Ed Maste becf2d11e8 vidcontrol: use calloc where appropriate 
Reported by:	kib
2016-11-05 11:19:55 +00:00

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/*-
* Copyright (c) 1994-1996 Søren Schmidt
* All rights reserved.
*
* Portions of this software are based in part on the work of
* Sascha Wildner <saw@online.de> contributed to The DragonFly Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $DragonFly: src/usr.sbin/vidcontrol/vidcontrol.c,v 1.10 2005/03/02 06:08:29 joerg Exp $
*/
#ifndef lint
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <ctype.h>
#include <err.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/fbio.h>
#include <sys/consio.h>
#include <sys/endian.h>
#include <sys/errno.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include "path.h"
#include "decode.h"
#define DATASIZE(x) ((x).w * (x).h * 256 / 8)
/* Screen dump modes */
#define DUMP_FMT_RAW 1
#define DUMP_FMT_TXT 2
/* Screen dump options */
#define DUMP_FBF 0
#define DUMP_ALL 1
/* Screen dump file format revision */
#define DUMP_FMT_REV 1
static const char *legal_colors[16] = {
"black", "blue", "green", "cyan",
"red", "magenta", "brown", "white",
"grey", "lightblue", "lightgreen", "lightcyan",
"lightred", "lightmagenta", "yellow", "lightwhite"
};
static struct {
int active_vty;
vid_info_t console_info;
unsigned char screen_map[256];
int video_mode_number;
struct video_info video_mode_info;
} cur_info;
struct vt4font_header {
uint8_t magic[8];
uint8_t width;
uint8_t height;
uint16_t pad;
uint32_t glyph_count;
uint32_t map_count[4];
} __packed;
static int hex = 0;
static int vesa_cols;
static int vesa_rows;
static int font_height;
static int colors_changed;
static int video_mode_changed;
static int normal_fore_color, normal_back_color;
static int revers_fore_color, revers_back_color;
static int vt4_mode = 0;
static struct vid_info info;
static struct video_info new_mode_info;
/*
* Initialize revert data.
*
* NOTE: the following parameters are not yet saved/restored:
*
* screen saver timeout
* cursor type
* mouse character and mouse show/hide state
* vty switching on/off state
* history buffer size
* history contents
* font maps
*/
static void
init(void)
{
if (ioctl(0, VT_GETACTIVE, &cur_info.active_vty) == -1)
errc(1, errno, "getting active vty");
cur_info.console_info.size = sizeof(cur_info.console_info);
if (ioctl(0, CONS_GETINFO, &cur_info.console_info) == -1)
errc(1, errno, "getting console information");
/* vt(4) use unicode, so no screen mapping required. */
if (vt4_mode == 0 &&
ioctl(0, GIO_SCRNMAP, &cur_info.screen_map) == -1)
errc(1, errno, "getting screen map");
if (ioctl(0, CONS_GET, &cur_info.video_mode_number) == -1)
errc(1, errno, "getting video mode number");
cur_info.video_mode_info.vi_mode = cur_info.video_mode_number;
if (ioctl(0, CONS_MODEINFO, &cur_info.video_mode_info) == -1)
errc(1, errno, "getting video mode parameters");
normal_fore_color = cur_info.console_info.mv_norm.fore;
normal_back_color = cur_info.console_info.mv_norm.back;
revers_fore_color = cur_info.console_info.mv_rev.fore;
revers_back_color = cur_info.console_info.mv_rev.back;
}
/*
* If something goes wrong along the way we call revert() to go back to the
* console state we came from (which is assumed to be working).
*
* NOTE: please also read the comments of init().
*/
static void
revert(void)
{
int size[3];
ioctl(0, VT_ACTIVATE, cur_info.active_vty);
fprintf(stderr, "\033[=%dA", cur_info.console_info.mv_ovscan);
fprintf(stderr, "\033[=%dF", cur_info.console_info.mv_norm.fore);
fprintf(stderr, "\033[=%dG", cur_info.console_info.mv_norm.back);
fprintf(stderr, "\033[=%dH", cur_info.console_info.mv_rev.fore);
fprintf(stderr, "\033[=%dI", cur_info.console_info.mv_rev.back);
if (vt4_mode == 0)
ioctl(0, PIO_SCRNMAP, &cur_info.screen_map);
if (cur_info.video_mode_number >= M_VESA_BASE)
ioctl(0, _IO('V', cur_info.video_mode_number - M_VESA_BASE),
NULL);
else
ioctl(0, _IO('S', cur_info.video_mode_number), NULL);
if (cur_info.video_mode_info.vi_flags & V_INFO_GRAPHICS) {
size[0] = cur_info.video_mode_info.vi_width / 8;
size[1] = cur_info.video_mode_info.vi_height /
cur_info.console_info.font_size;
size[2] = cur_info.console_info.font_size;
ioctl(0, KDRASTER, size);
}
}
/*
* Print a short usage string describing all options, then exit.
*/
static void
usage(void)
{
if (vt4_mode)
fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n",
"usage: vidcontrol [-CHPpx] [-b color] [-c appearance] [-f [[size] file]]",
" [-g geometry] [-h size] [-i active | adapter | mode]",
" [-M char] [-m on | off] [-r foreground background]",
" [-S on | off] [-s number] [-T xterm | cons25] [-t N | off]",
" [mode] [foreground [background]] [show]");
else
fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n",
"usage: vidcontrol [-CdHLPpx] [-b color] [-c appearance] [-f [size] file]",
" [-g geometry] [-h size] [-i adapter | mode] [-l screen_map]",
" [-M char] [-m on | off] [-r foreground background]",
" [-S on | off] [-s number] [-T xterm | cons25] [-t N | off]",
" [mode] [foreground [background]] [show]");
exit(1);
}
/* Detect presence of vt(4). */
static int
is_vt4(void)
{
char vty_name[4] = "";
size_t len = sizeof(vty_name);
if (sysctlbyname("kern.vty", vty_name, &len, NULL, 0) != 0)
return (0);
return (strcmp(vty_name, "vt") == 0);
}
/*
* Retrieve the next argument from the command line (for options that require
* more than one argument).
*/
static char *
nextarg(int ac, char **av, int *indp, int oc, int strict)
{
if (*indp < ac)
return(av[(*indp)++]);
if (strict != 0) {
revert();
errx(1, "option requires two arguments -- %c", oc);
}
return(NULL);
}
/*
* Guess which file to open. Try to open each combination of a specified set
* of file name components.
*/
static FILE *
openguess(const char *a[], const char *b[], const char *c[], const char *d[], char **name)
{
FILE *f;
int i, j, k, l;
for (i = 0; a[i] != NULL; i++) {
for (j = 0; b[j] != NULL; j++) {
for (k = 0; c[k] != NULL; k++) {
for (l = 0; d[l] != NULL; l++) {
asprintf(name, "%s%s%s%s",
a[i], b[j], c[k], d[l]);
f = fopen(*name, "r");
if (f != NULL)
return (f);
free(*name);
}
}
}
}
return (NULL);
}
/*
* Load a screenmap from a file and set it.
*/
static void
load_scrnmap(const char *filename)
{
FILE *fd;
int size;
char *name;
scrmap_t scrnmap;
const char *a[] = {"", SCRNMAP_PATH, NULL};
const char *b[] = {filename, NULL};
const char *c[] = {"", ".scm", NULL};
const char *d[] = {"", NULL};
fd = openguess(a, b, c, d, &name);
if (fd == NULL) {
revert();
errx(1, "screenmap file not found");
}
size = sizeof(scrnmap);
if (decode(fd, (char *)&scrnmap, size) != size) {
rewind(fd);
if (fread(&scrnmap, 1, size, fd) != (size_t)size) {
warnx("bad screenmap file");
fclose(fd);
revert();
errx(1, "bad screenmap file");
}
}
if (ioctl(0, PIO_SCRNMAP, &scrnmap) == -1) {
revert();
errc(1, errno, "loading screenmap");
}
fclose(fd);
}
/*
* Set the default screenmap.
*/
static void
load_default_scrnmap(void)
{
scrmap_t scrnmap;
int i;
for (i=0; i<256; i++)
*((char*)&scrnmap + i) = i;
if (ioctl(0, PIO_SCRNMAP, &scrnmap) == -1) {
revert();
errc(1, errno, "loading default screenmap");
}
}
/*
* Print the current screenmap to stdout.
*/
static void
print_scrnmap(void)
{
unsigned char map[256];
size_t i;
if (ioctl(0, GIO_SCRNMAP, &map) == -1) {
revert();
errc(1, errno, "getting screenmap");
}
for (i=0; i<sizeof(map); i++) {
if (i != 0 && i % 16 == 0)
fprintf(stdout, "\n");
if (hex != 0)
fprintf(stdout, " %02x", map[i]);
else
fprintf(stdout, " %03d", map[i]);
}
fprintf(stdout, "\n");
}
/*
* Determine a file's size.
*/
static int
fsize(FILE *file)
{
struct stat sb;
if (fstat(fileno(file), &sb) == 0)
return sb.st_size;
else
return -1;
}
static vfnt_map_t *
load_vt4mappingtable(unsigned int nmappings, FILE *f)
{
vfnt_map_t *t;
unsigned int i;
if (nmappings == 0)
return (NULL);
if ((t = calloc(nmappings, sizeof(*t))) == NULL) {
warn("calloc");
return (NULL);
}
if (fread(t, sizeof *t * nmappings, 1, f) != 1) {
warn("read mappings");
free(t);
return (NULL);
}
for (i = 0; i < nmappings; i++) {
t[i].src = be32toh(t[i].src);
t[i].dst = be16toh(t[i].dst);
t[i].len = be16toh(t[i].len);
}
return (t);
}
/*
* Set the default vt font.
*/
static void
load_default_vt4font(void)
{
if (ioctl(0, PIO_VFONT_DEFAULT) == -1) {
revert();
errc(1, errno, "loading default vt font");
}
}
static void
load_vt4font(FILE *f)
{
struct vt4font_header fh;
static vfnt_t vfnt;
size_t glyphsize;
unsigned int i;
if (fread(&fh, sizeof fh, 1, f) != 1) {
warn("read file_header");
return;
}
if (memcmp(fh.magic, "VFNT0002", 8) != 0) {
warnx("bad magic in font file\n");
return;
}
for (i = 0; i < VFNT_MAPS; i++)
vfnt.map_count[i] = be32toh(fh.map_count[i]);
vfnt.glyph_count = be32toh(fh.glyph_count);
vfnt.width = fh.width;
vfnt.height = fh.height;
glyphsize = howmany(vfnt.width, 8) * vfnt.height * vfnt.glyph_count;
if ((vfnt.glyphs = malloc(glyphsize)) == NULL) {
warn("malloc");
return;
}
if (fread(vfnt.glyphs, glyphsize, 1, f) != 1) {
warn("read glyphs");
free(vfnt.glyphs);
return;
}
for (i = 0; i < VFNT_MAPS; i++)
vfnt.map[i] = load_vt4mappingtable(vfnt.map_count[i], f);
if (ioctl(STDIN_FILENO, PIO_VFONT, &vfnt) == -1)
warn("PIO_VFONT");
for (i = 0; i < VFNT_MAPS; i++)
free(vfnt.map[i]);
free(vfnt.glyphs);
}
/*
* Load a font from file and set it.
*/
static void
load_font(const char *type, const char *filename)
{
FILE *fd;
int h, i, size, w;
unsigned long io = 0; /* silence stupid gcc(1) in the Wall mode */
char *name, *fontmap, size_sufx[6];
const char *a[] = {"", FONT_PATH, NULL};
const char *vt4a[] = {"", VT_FONT_PATH, NULL};
const char *b[] = {filename, NULL};
const char *c[] = {"", size_sufx, NULL};
const char *d[] = {"", ".fnt", NULL};
vid_info_t _info;
struct sizeinfo {
int w;
int h;
unsigned long io;
} sizes[] = {{8, 16, PIO_FONT8x16},
{8, 14, PIO_FONT8x14},
{8, 8, PIO_FONT8x8},
{0, 0, 0}};
if (vt4_mode) {
size_sufx[0] = '\0';
} else {
_info.size = sizeof(_info);
if (ioctl(0, CONS_GETINFO, &_info) == -1) {
revert();
warn("failed to obtain current video mode parameters");
return;
}
snprintf(size_sufx, sizeof(size_sufx), "-8x%d", _info.font_size);
}
fd = openguess((vt4_mode == 0) ? a : vt4a, b, c, d, &name);
if (fd == NULL) {
revert();
errx(1, "%s: can't load font file", filename);
}
if (vt4_mode) {
load_vt4font(fd);
fclose(fd);
return;
}
if (type != NULL) {
size = 0;
if (sscanf(type, "%dx%d", &w, &h) == 2) {
for (i = 0; sizes[i].w != 0; i++) {
if (sizes[i].w == w && sizes[i].h == h) {
size = DATASIZE(sizes[i]);
io = sizes[i].io;
font_height = sizes[i].h;
}
}
}
if (size == 0) {
fclose(fd);
revert();
errx(1, "%s: bad font size specification", type);
}
} else {
/* Apply heuristics */
int j;
int dsize[2];
size = DATASIZE(sizes[0]);
fontmap = (char*) malloc(size);
dsize[0] = decode(fd, fontmap, size);
dsize[1] = fsize(fd);
free(fontmap);
size = 0;
for (j = 0; j < 2; j++) {
for (i = 0; sizes[i].w != 0; i++) {
if (DATASIZE(sizes[i]) == dsize[j]) {
size = dsize[j];
io = sizes[i].io;
font_height = sizes[i].h;
j = 2; /* XXX */
break;
}
}
}
if (size == 0) {
fclose(fd);
revert();
errx(1, "%s: can't guess font size", filename);
}
rewind(fd);
}
fontmap = (char*) malloc(size);
if (decode(fd, fontmap, size) != size) {
rewind(fd);
if (fsize(fd) != size ||
fread(fontmap, 1, size, fd) != (size_t)size) {
warnx("%s: bad font file", filename);
fclose(fd);
free(fontmap);
revert();
errx(1, "%s: bad font file", filename);
}
}
if (ioctl(0, io, fontmap) == -1) {
revert();
errc(1, errno, "loading font");
}
fclose(fd);
free(fontmap);
}
/*
* Set the timeout for the screensaver.
*/
static void
set_screensaver_timeout(char *arg)
{
int nsec;
if (!strcmp(arg, "off")) {
nsec = 0;
} else {
nsec = atoi(arg);
if ((*arg == '\0') || (nsec < 1)) {
revert();
errx(1, "argument must be a positive number");
}
}
if (ioctl(0, CONS_BLANKTIME, &nsec) == -1) {
revert();
errc(1, errno, "setting screensaver period");
}
}
/*
* Set the cursor's shape/type.
*/
static void
set_cursor_type(char *appearance)
{
int type;
if (!strcmp(appearance, "normal"))
type = 0;
else if (!strcmp(appearance, "blink"))
type = 1;
else if (!strcmp(appearance, "destructive"))
type = 3;
else {
revert();
errx(1, "argument to -c must be normal, blink or destructive");
}
if (ioctl(0, CONS_CURSORTYPE, &type) == -1) {
revert();
errc(1, errno, "setting cursor type");
}
}
/*
* Set the video mode.
*/
static int
video_mode(int argc, char **argv, int *mode_index)
{
static struct {
const char *name;
unsigned long mode;
unsigned long mode_num;
} modes[] = {
{ "80x25", SW_TEXT_80x25, M_TEXT_80x25 },
{ "80x30", SW_TEXT_80x30, M_TEXT_80x30 },
{ "80x43", SW_TEXT_80x43, M_TEXT_80x43 },
{ "80x50", SW_TEXT_80x50, M_TEXT_80x50 },
{ "80x60", SW_TEXT_80x60, M_TEXT_80x60 },
{ "132x25", SW_TEXT_132x25, M_TEXT_132x25 },
{ "132x30", SW_TEXT_132x30, M_TEXT_132x30 },
{ "132x43", SW_TEXT_132x43, M_TEXT_132x43 },
{ "132x50", SW_TEXT_132x50, M_TEXT_132x50 },
{ "132x60", SW_TEXT_132x60, M_TEXT_132x60 },
{ "VGA_40x25", SW_VGA_C40x25, M_VGA_C40x25 },
{ "VGA_80x25", SW_VGA_C80x25, M_VGA_C80x25 },
{ "VGA_80x30", SW_VGA_C80x30, M_VGA_C80x30 },
{ "VGA_80x50", SW_VGA_C80x50, M_VGA_C80x50 },
{ "VGA_80x60", SW_VGA_C80x60, M_VGA_C80x60 },
#ifdef SW_VGA_C90x25
{ "VGA_90x25", SW_VGA_C90x25, M_VGA_C90x25 },
{ "VGA_90x30", SW_VGA_C90x30, M_VGA_C90x30 },
{ "VGA_90x43", SW_VGA_C90x43, M_VGA_C90x43 },
{ "VGA_90x50", SW_VGA_C90x50, M_VGA_C90x50 },
{ "VGA_90x60", SW_VGA_C90x60, M_VGA_C90x60 },
#endif
{ "VGA_320x200", SW_VGA_CG320, M_CG320 },
{ "EGA_80x25", SW_ENH_C80x25, M_ENH_C80x25 },
{ "EGA_80x43", SW_ENH_C80x43, M_ENH_C80x43 },
{ "VESA_132x25", SW_VESA_C132x25,M_VESA_C132x25 },
{ "VESA_132x43", SW_VESA_C132x43,M_VESA_C132x43 },
{ "VESA_132x50", SW_VESA_C132x50,M_VESA_C132x50 },
{ "VESA_132x60", SW_VESA_C132x60,M_VESA_C132x60 },
{ "VESA_800x600", SW_VESA_800x600,M_VESA_800x600 },
{ NULL, 0, 0 },
};
int new_mode_num = 0;
unsigned long mode = 0;
int cur_mode;
int ioerr;
int size[3];
int i;
if (ioctl(0, CONS_GET, &cur_mode) < 0)
err(1, "cannot get the current video mode");
/*
* Parse the video mode argument...
*/
if (*mode_index < argc) {
if (!strncmp(argv[*mode_index], "MODE_", 5)) {
if (!isdigit(argv[*mode_index][5]))
errx(1, "invalid video mode number");
new_mode_num = atoi(&argv[*mode_index][5]);
} else {
for (i = 0; modes[i].name != NULL; ++i) {
if (!strcmp(argv[*mode_index], modes[i].name)) {
mode = modes[i].mode;
new_mode_num = modes[i].mode_num;
break;
}
}
if (modes[i].name == NULL)
return EXIT_FAILURE;
if (ioctl(0, mode, NULL) < 0) {
warn("cannot set videomode");
return EXIT_FAILURE;
}
}
/*
* Collect enough information about the new video mode...
*/
new_mode_info.vi_mode = new_mode_num;
if (ioctl(0, CONS_MODEINFO, &new_mode_info) == -1) {
revert();
errc(1, errno, "obtaining new video mode parameters");
}
if (mode == 0) {
if (new_mode_num >= M_VESA_BASE)
mode = _IO('V', new_mode_num - M_VESA_BASE);
else
mode = _IO('S', new_mode_num);
}
/*
* Try setting the new mode.
*/
if (ioctl(0, mode, NULL) == -1) {
revert();
errc(1, errno, "setting video mode");
}
/*
* For raster modes it's not enough to just set the mode.
* We also need to explicitly set the raster mode.
*/
if (new_mode_info.vi_flags & V_INFO_GRAPHICS) {
/* font size */
if (font_height == 0)
font_height = cur_info.console_info.font_size;
size[2] = font_height;
/* adjust columns */
if ((vesa_cols * 8 > new_mode_info.vi_width) ||
(vesa_cols <= 0)) {
size[0] = new_mode_info.vi_width / 8;
} else {
size[0] = vesa_cols;
}
/* adjust rows */
if ((vesa_rows * font_height > new_mode_info.vi_height) ||
(vesa_rows <= 0)) {
size[1] = new_mode_info.vi_height /
font_height;
} else {
size[1] = vesa_rows;
}
/* set raster mode */
if (ioctl(0, KDRASTER, size)) {
ioerr = errno;
if (cur_mode >= M_VESA_BASE)
ioctl(0,
_IO('V', cur_mode - M_VESA_BASE),
NULL);
else
ioctl(0, _IO('S', cur_mode), NULL);
revert();
warnc(ioerr, "cannot activate raster display");
return EXIT_FAILURE;
}
}
video_mode_changed = 1;
(*mode_index)++;
}
return EXIT_SUCCESS;
}
/*
* Return the number for a specified color name.
*/
static int
get_color_number(char *color)
{
int i;
for (i=0; i<16; i++) {
if (!strcmp(color, legal_colors[i]))
return i;
}
return -1;
}
/*
* Get normal text and background colors.
*/
static void
get_normal_colors(int argc, char **argv, int *_index)
{
int color;
if (*_index < argc && (color = get_color_number(argv[*_index])) != -1) {
(*_index)++;
fprintf(stderr, "\033[=%dF", color);
normal_fore_color=color;
colors_changed = 1;
if (*_index < argc
&& (color = get_color_number(argv[*_index])) != -1
&& color < 8) {
(*_index)++;
fprintf(stderr, "\033[=%dG", color);
normal_back_color=color;
}
}
}
/*
* Get reverse text and background colors.
*/
static void
get_reverse_colors(int argc, char **argv, int *_index)
{
int color;
if ((color = get_color_number(argv[*(_index)-1])) != -1) {
fprintf(stderr, "\033[=%dH", color);
revers_fore_color=color;
colors_changed = 1;
if (*_index < argc
&& (color = get_color_number(argv[*_index])) != -1
&& color < 8) {
(*_index)++;
fprintf(stderr, "\033[=%dI", color);
revers_back_color=color;
}
}
}
/*
* Set normal and reverse foreground and background colors.
*/
static void
set_colors(void)
{
fprintf(stderr, "\033[=%dF", normal_fore_color);
fprintf(stderr, "\033[=%dG", normal_back_color);
fprintf(stderr, "\033[=%dH", revers_fore_color);
fprintf(stderr, "\033[=%dI", revers_back_color);
}
/*
* Switch to virtual terminal #arg.
*/
static void
set_console(char *arg)
{
int n;
if(!arg || strspn(arg,"0123456789") != strlen(arg)) {
revert();
errx(1, "bad console number");
}
n = atoi(arg);
if (n < 1 || n > 16) {
revert();
errx(1, "console number out of range");
} else if (ioctl(0, VT_ACTIVATE, n) == -1) {
revert();
errc(1, errno, "switching vty");
}
}
/*
* Sets the border color.
*/
static void
set_border_color(char *arg)
{
int color;
if ((color = get_color_number(arg)) != -1) {
fprintf(stderr, "\033[=%dA", color);
}
else
usage();
}
static void
set_mouse_char(char *arg)
{
struct mouse_info mouse;
long l;
l = strtol(arg, NULL, 0);
if ((l < 0) || (l > UCHAR_MAX - 3)) {
revert();
warnx("argument to -M must be 0 through %d", UCHAR_MAX - 3);
return;
}
mouse.operation = MOUSE_MOUSECHAR;
mouse.u.mouse_char = (int)l;
if (ioctl(0, CONS_MOUSECTL, &mouse) == -1) {
revert();
errc(1, errno, "setting mouse character");
}
}
/*
* Show/hide the mouse.
*/
static void
set_mouse(char *arg)
{
struct mouse_info mouse;
if (!strcmp(arg, "on")) {
mouse.operation = MOUSE_SHOW;
} else if (!strcmp(arg, "off")) {
mouse.operation = MOUSE_HIDE;
} else {
revert();
errx(1, "argument to -m must be either on or off");
}
if (ioctl(0, CONS_MOUSECTL, &mouse) == -1) {
revert();
errc(1, errno, "%sing the mouse",
mouse.operation == MOUSE_SHOW ? "show" : "hid");
}
}
static void
set_lockswitch(char *arg)
{
int data;
if (!strcmp(arg, "off")) {
data = 0x01;
} else if (!strcmp(arg, "on")) {
data = 0x02;
} else {
revert();
errx(1, "argument to -S must be either on or off");
}
if (ioctl(0, VT_LOCKSWITCH, &data) == -1) {
revert();
errc(1, errno, "turning %s vty switching",
data == 0x01 ? "off" : "on");
}
}
/*
* Return the adapter name for a specified type.
*/
static const char
*adapter_name(int type)
{
static struct {
int type;
const char *name;
} names[] = {
{ KD_MONO, "MDA" },
{ KD_HERCULES, "Hercules" },
{ KD_CGA, "CGA" },
{ KD_EGA, "EGA" },
{ KD_VGA, "VGA" },
{ KD_PC98, "PC-98xx" },
{ KD_TGA, "TGA" },
{ -1, "Unknown" },
};
int i;
for (i = 0; names[i].type != -1; ++i)
if (names[i].type == type)
break;
return names[i].name;
}
/*
* Show active VTY, ie current console number.
*/
static void
show_active_info(void)
{
printf("%d\n", cur_info.active_vty);
}
/*
* Show graphics adapter information.
*/
static void
show_adapter_info(void)
{
struct video_adapter_info ad;
ad.va_index = 0;
if (ioctl(0, CONS_ADPINFO, &ad) == -1) {
revert();
errc(1, errno, "obtaining adapter information");
}
printf("fb%d:\n", ad.va_index);
printf(" %.*s%d, type:%s%s (%d), flags:0x%x\n",
(int)sizeof(ad.va_name), ad.va_name, ad.va_unit,
(ad.va_flags & V_ADP_VESA) ? "VESA " : "",
adapter_name(ad.va_type), ad.va_type, ad.va_flags);
printf(" initial mode:%d, current mode:%d, BIOS mode:%d\n",
ad.va_initial_mode, ad.va_mode, ad.va_initial_bios_mode);
printf(" frame buffer window:0x%zx, buffer size:0x%zx\n",
ad.va_window, ad.va_buffer_size);
printf(" window size:0x%zx, origin:0x%x\n",
ad.va_window_size, ad.va_window_orig);
printf(" display start address (%d, %d), scan line width:%d\n",
ad.va_disp_start.x, ad.va_disp_start.y, ad.va_line_width);
printf(" reserved:0x%zx\n", ad.va_unused0);
}
/*
* Show video mode information.
*/
static void
show_mode_info(void)
{
char buf[80];
struct video_info _info;
int c;
int mm;
int mode;
printf(" mode# flags type size "
"font window linear buffer\n");
printf("---------------------------------------"
"---------------------------------------\n");
memset(&_info, 0, sizeof(_info));
for (mode = 0; mode <= M_VESA_MODE_MAX; ++mode) {
_info.vi_mode = mode;
if (ioctl(0, CONS_MODEINFO, &_info))
continue;
if (_info.vi_mode != mode)
continue;
if (_info.vi_width == 0 && _info.vi_height == 0 &&
_info.vi_cwidth == 0 && _info.vi_cheight == 0)
continue;
printf("%3d (0x%03x)", mode, mode);
printf(" 0x%08x", _info.vi_flags);
if (_info.vi_flags & V_INFO_GRAPHICS) {
c = 'G';
if (_info.vi_mem_model == V_INFO_MM_PLANAR)
snprintf(buf, sizeof(buf), "%dx%dx%d %d",
_info.vi_width, _info.vi_height,
_info.vi_depth, _info.vi_planes);
else {
switch (_info.vi_mem_model) {
case V_INFO_MM_PACKED:
mm = 'P';
break;
case V_INFO_MM_DIRECT:
mm = 'D';
break;
case V_INFO_MM_CGA:
mm = 'C';
break;
case V_INFO_MM_HGC:
mm = 'H';
break;
case V_INFO_MM_VGAX:
mm = 'V';
break;
default:
mm = ' ';
break;
}
snprintf(buf, sizeof(buf), "%dx%dx%d %c",
_info.vi_width, _info.vi_height,
_info.vi_depth, mm);
}
} else {
c = 'T';
snprintf(buf, sizeof(buf), "%dx%d",
_info.vi_width, _info.vi_height);
}
printf(" %c %-15s", c, buf);
snprintf(buf, sizeof(buf), "%dx%d",
_info.vi_cwidth, _info.vi_cheight);
printf(" %-5s", buf);
printf(" 0x%05zx %2dk %2dk",
_info.vi_window, (int)_info.vi_window_size/1024,
(int)_info.vi_window_gran/1024);
printf(" 0x%08zx %dk\n",
_info.vi_buffer, (int)_info.vi_buffer_size/1024);
}
}
static void
show_info(char *arg)
{
if (!strcmp(arg, "active")) {
show_active_info();
} else if (!strcmp(arg, "adapter")) {
show_adapter_info();
} else if (!strcmp(arg, "mode")) {
show_mode_info();
} else {
revert();
errx(1, "argument to -i must be active, adapter, or mode");
}
}
static void
test_frame(void)
{
int i, cur_mode, fore;
fore = 15;
if (ioctl(0, CONS_GET, &cur_mode) < 0)
err(1, "must be on a virtual console");
switch (cur_mode) {
case M_PC98_80x25:
case M_PC98_80x30:
fore = 7;
break;
}
fprintf(stdout, "\033[=0G\n\n");
for (i=0; i<8; i++) {
fprintf(stdout, "\033[=%dF\033[=0G %2d \033[=%dF%-16s"
"\033[=%dF\033[=0G %2d \033[=%dF%-16s "
"\033[=%dF %2d \033[=%dGBACKGROUND\033[=0G\n",
fore, i, i, legal_colors[i],
fore, i+8, i+8, legal_colors[i+8],
fore, i, i);
}
fprintf(stdout, "\033[=%dF\033[=%dG\033[=%dH\033[=%dI\n",
info.mv_norm.fore, info.mv_norm.back,
info.mv_rev.fore, info.mv_rev.back);
}
/*
* Snapshot the video memory of that terminal, using the CONS_SCRSHOT
* ioctl, and writes the results to stdout either in the special
* binary format (see manual page for details), or in the plain
* text format.
*/
static void
dump_screen(int mode, int opt)
{
scrshot_t shot;
vid_info_t _info;
_info.size = sizeof(_info);
if (ioctl(0, CONS_GETINFO, &_info) == -1) {
revert();
errc(1, errno, "obtaining current video mode parameters");
return;
}
shot.x = shot.y = 0;
shot.xsize = _info.mv_csz;
shot.ysize = _info.mv_rsz;
if (opt == DUMP_ALL)
shot.ysize += _info.mv_hsz;
shot.buf = alloca(shot.xsize * shot.ysize * sizeof(u_int16_t));
if (shot.buf == NULL) {
revert();
errx(1, "failed to allocate memory for dump");
}
if (ioctl(0, CONS_SCRSHOT, &shot) == -1) {
revert();
errc(1, errno, "dumping screen");
}
if (mode == DUMP_FMT_RAW) {
printf("SCRSHOT_%c%c%c%c", DUMP_FMT_REV, 2,
shot.xsize, shot.ysize);
fflush(stdout);
write(STDOUT_FILENO, shot.buf,
shot.xsize * shot.ysize * sizeof(u_int16_t));
} else {
char *line;
int x, y;
u_int16_t ch;
line = alloca(shot.xsize + 1);
if (line == NULL) {
revert();
errx(1, "failed to allocate memory for line buffer");
}
for (y = 0; y < shot.ysize; y++) {
for (x = 0; x < shot.xsize; x++) {
ch = shot.buf[x + (y * shot.xsize)];
ch &= 0xff;
if (isprint(ch) == 0)
ch = ' ';
line[x] = (char)ch;
}
/* Trim trailing spaces */
do {
line[x--] = '\0';
} while (line[x] == ' ' && x != 0);
puts(line);
}
fflush(stdout);
}
}
/*
* Set the console history buffer size.
*/
static void
set_history(char *opt)
{
int size;
size = atoi(opt);
if ((*opt == '\0') || size < 0) {
revert();
errx(1, "argument must be a positive number");
}
if (ioctl(0, CONS_HISTORY, &size) == -1) {
revert();
errc(1, errno, "setting history buffer size");
}
}
/*
* Clear the console history buffer.
*/
static void
clear_history(void)
{
if (ioctl(0, CONS_CLRHIST) == -1) {
revert();
errc(1, errno, "clearing history buffer");
}
}
static void
set_terminal_mode(char *arg)
{
if (strcmp(arg, "xterm") == 0)
fprintf(stderr, "\033[=T");
else if (strcmp(arg, "cons25") == 0)
fprintf(stderr, "\033[=1T");
}
int
main(int argc, char **argv)
{
char *font, *type, *termmode;
const char *opts;
int dumpmod, dumpopt, opt;
int reterr;
vt4_mode = is_vt4();
init();
info.size = sizeof(info);
if (ioctl(0, CONS_GETINFO, &info) == -1)
err(1, "must be on a virtual console");
dumpmod = 0;
dumpopt = DUMP_FBF;
termmode = NULL;
if (vt4_mode)
opts = "b:Cc:fg:h:Hi:M:m:pPr:S:s:T:t:x";
else
opts = "b:Cc:dfg:h:Hi:l:LM:m:pPr:S:s:T:t:x";
while ((opt = getopt(argc, argv, opts)) != -1)
switch(opt) {
case 'b':
set_border_color(optarg);
break;
case 'C':
clear_history();
break;
case 'c':
set_cursor_type(optarg);
break;
case 'd':
if (vt4_mode)
break;
print_scrnmap();
break;
case 'f':
optarg = nextarg(argc, argv, &optind, 'f', 0);
if (optarg != NULL) {
font = nextarg(argc, argv, &optind, 'f', 0);
if (font == NULL) {
type = NULL;
font = optarg;
} else
type = optarg;
load_font(type, font);
} else {
if (!vt4_mode)
usage(); /* Switch syscons to ROM? */
load_default_vt4font();
}
break;
case 'g':
if (sscanf(optarg, "%dx%d",
&vesa_cols, &vesa_rows) != 2) {
revert();
warnx("incorrect geometry: %s", optarg);
usage();
}
break;
case 'h':
set_history(optarg);
break;
case 'H':
dumpopt = DUMP_ALL;
break;
case 'i':
show_info(optarg);
break;
case 'l':
if (vt4_mode)
break;
load_scrnmap(optarg);
break;
case 'L':
if (vt4_mode)
break;
load_default_scrnmap();
break;
case 'M':
set_mouse_char(optarg);
break;
case 'm':
set_mouse(optarg);
break;
case 'p':
dumpmod = DUMP_FMT_RAW;
break;
case 'P':
dumpmod = DUMP_FMT_TXT;
break;
case 'r':
get_reverse_colors(argc, argv, &optind);
break;
case 'S':
set_lockswitch(optarg);
break;
case 's':
set_console(optarg);
break;
case 'T':
if (strcmp(optarg, "xterm") != 0 &&
strcmp(optarg, "cons25") != 0)
usage();
termmode = optarg;
break;
case 't':
set_screensaver_timeout(optarg);
break;
case 'x':
hex = 1;
break;
default:
usage();
}
if (dumpmod != 0)
dump_screen(dumpmod, dumpopt);
reterr = video_mode(argc, argv, &optind);
get_normal_colors(argc, argv, &optind);
if (optind < argc && !strcmp(argv[optind], "show")) {
test_frame();
optind++;
}
video_mode(argc, argv, &optind);
if (termmode != NULL)
set_terminal_mode(termmode);
get_normal_colors(argc, argv, &optind);
if (colors_changed || video_mode_changed) {
if (!(new_mode_info.vi_flags & V_INFO_GRAPHICS)) {
if ((normal_back_color < 8) && (revers_back_color < 8)) {
set_colors();
} else {
revert();
errx(1, "bg color for text modes must be < 8");
}
} else {
set_colors();
}
}
if ((optind != argc) || (argc == 1))
usage();
return reterr;
}
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