usr.sbin/vidcontrol/vidcontrol.c

   1 /*-
   2  * Copyright (c) 1994-1996 Søren Schmidt
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer,
  10  *    in this position and unchanged.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef lint
  30 static const char rcsid[] =
  31   "$FreeBSD$";
  32 #endif /* not lint */
  33
  34 #include <ctype.h>
  35 #include <err.h>
  36 #include <limits.h>
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41 #include <sys/fbio.h>
  42 #include <sys/consio.h>
  43 #include <sys/errno.h>
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include "path.h"
  47 #include "decode.h"
  48
  49 #define _VESA_800x600_DFL_COLS 80
  50 #define _VESA_800x600_DFL_ROWS 25
  51 #define _VESA_800x600_DFL_FNSZ 16
  52
  53 #define DUMP_RAW        0
  54 #define DUMP_TXT        1
  55
  56 #define DUMP_FMT_REV    1
  57
  58 char    legal_colors[16][16] = {
  59         "black", "blue", "green", "cyan",
  60         "red", "magenta", "brown", "white",
  61         "grey", "lightblue", "lightgreen", "lightcyan",
  62         "lightred", "lightmagenta", "yellow", "lightwhite"
  63 };
  64 int     hex = 0;
  65 int     number;
  66 int     vesa_cols = _VESA_800x600_DFL_COLS;
  67 int     vesa_rows = _VESA_800x600_DFL_ROWS;
  68 char    letter;
  69 struct  vid_info info;
  70
  71
  72 static void
  73 usage()
  74 {
  75         fprintf(stderr, "%s\n%s\n%s\n%s\n",
  76 "usage: vidcontrol [-CdLPpx] [-b color] [-c appearance] [-f [size] file]",
  77 "                  [-g geometry] [-h size] [-i adapter | mode] [-l screen_map]",
  78 "                  [-m on | off] [-M char] [-r foreground background] [-s num]",
  79 "                  [-t N | off] [mode] [foreground [background]] [show]");
  80         exit(1);
  81 }
  82
  83 char *
  84 nextarg(int ac, char **av, int *indp, int oc, int strict)
  85 {
  86         if (*indp < ac)
  87                 return(av[(*indp)++]);
  88         if (strict != 0)
  89                 errx(1, "option requires two arguments -- %c", oc);
  90         return(NULL);
  91 }
  92
  93 FILE *
  94 openguess(char *a[], char *b[], char *c[], char *d[], char **name)
  95 {
  96         FILE *f;
  97         int i, j, k, l;
  98
  99         for (i = 0; a[i] != NULL; i++) {
 100                 for (j = 0; b[j] != NULL; j++) {
 101                         for (k = 0; c[k] != NULL; k++) {
 102                                 for (l = 0; d[l] != NULL; l++) {
 103                                         asprintf(name, "%s%s%s%s", a[i], b[j],
 104                                             c[k], d[l]);
 105                                         f = fopen(*name, "r");
 106                                         if (f != NULL)
 107                                                 return (f);
 108                                         free(*name);
 109                                 }
 110                         }
 111                 }
 112         }
 113         return (NULL);
 114 }
 115
 116 void
 117 load_scrnmap(char *filename)
 118 {
 119         FILE *fd;
 120         int size;
 121         char *name;
 122         scrmap_t scrnmap;
 123         char *a[] = {"", SCRNMAP_PATH, NULL};
 124         char *b[] = {filename, NULL};
 125         char *c[] = {"", ".scm", NULL};
 126         char *d[] = {"", NULL};
 127
 128         fd = openguess(a, b, c, d, &name);
 129         if (fd == NULL) {
 130                 warn("screenmap file not found");
 131                 return;
 132         }
 133         size = sizeof(scrnmap);
 134         if (decode(fd, (char *)&scrnmap, size) != size) {
 135                 rewind(fd);
 136                 if (fread(&scrnmap, 1, size, fd) != size) {
 137                         warnx("bad screenmap file");
 138                         fclose(fd);
 139                         return;
 140                 }
 141         }
 142         if (ioctl(0, PIO_SCRNMAP, &scrnmap) < 0)
 143                 warn("can't load screenmap");
 144         fclose(fd);
 145 }
 146
 147 void
 148 load_default_scrnmap()
 149 {
 150         scrmap_t scrnmap;
 151         int i;
 152
 153         for (i=0; i<256; i++)
 154                 *((char*)&scrnmap + i) = i;
 155         if (ioctl(0, PIO_SCRNMAP, &scrnmap) < 0)
 156                 warn("can't load default screenmap");
 157 }
 158
 159 void
 160 print_scrnmap()
 161 {
 162         unsigned char map[256];
 163         int i;
 164
 165         if (ioctl(0, GIO_SCRNMAP, &map) < 0) {
 166                 warn("getting screenmap");
 167                 return;
 168         }
 169         for (i=0; i<sizeof(map); i++) {
 170                 if (i > 0 && i % 16 == 0)
 171                         fprintf(stdout, "\n");
 172                 if (hex)
 173                         fprintf(stdout, " %02x", map[i]);
 174                 else
 175                         fprintf(stdout, " %03d", map[i]);
 176         }
 177         fprintf(stdout, "\n");
 178
 179 }
 180
 181 int
 182 fsize(FILE *file)
 183 {
 184         struct stat sb;
 185
 186         if (fstat(fileno(file), &sb) == 0)
 187                 return sb.st_size;
 188         else
 189                 return -1;
 190 }
 191
 192 #define DATASIZE(x) ((x).w * (x).h * 256 / 8)
 193
 194 void
 195 load_font(char *type, char *filename)
 196 {
 197         FILE    *fd;
 198         int     h, i, size, w;
 199         unsigned long io = 0;   /* silence stupid gcc(1) in the Wall mode */
 200         char    *name, *fontmap, size_sufx[6];
 201         char    *a[] = {"", FONT_PATH, NULL};
 202         char    *b[] = {filename, NULL};
 203         char    *c[] = {"", size_sufx, NULL};
 204         char    *d[] = {"", ".fnt", NULL};
 205         vid_info_t info;
 206
 207         struct sizeinfo {
 208                 int w;
 209                 int h;
 210                 unsigned long io;
 211         } sizes[] = {{8, 16, PIO_FONT8x16},
 212                      {8, 14, PIO_FONT8x14},
 213                      {8,  8,  PIO_FONT8x8},
 214                      {0,  0,            0}};
 215
 216         info.size = sizeof(info);
 217         if (ioctl(0, CONS_GETINFO, &info) == -1) {
 218                 warn("failed to obtain current video mode parameters");
 219                 return;
 220         }
 221         snprintf(size_sufx, sizeof(size_sufx), "-8x%d", info.font_size);
 222         fd = openguess(a, b, c, d, &name);
 223         if (fd == NULL) {
 224                 warn("%s: can't load font file", filename);
 225                 return;
 226         }
 227         if (type != NULL) {
 228                 size = 0;
 229                 if (sscanf(type, "%dx%d", &w, &h) == 2)
 230                         for (i = 0; sizes[i].w != 0; i++)
 231                                 if (sizes[i].w == w && sizes[i].h == h) {
 232                                         size = DATASIZE(sizes[i]);
 233                                         io = sizes[i].io;
 234                                 }
 235
 236                 if (size == 0) {
 237                         warnx("%s: bad font size specification", type);
 238                         fclose(fd);
 239                         return;
 240                 }
 241         } else {
 242                 /* Apply heuristics */
 243                 int j;
 244                 int dsize[2];
 245
 246                 size = DATASIZE(sizes[0]);
 247                 fontmap = (char*) malloc(size);
 248                 dsize[0] = decode(fd, fontmap, size);
 249                 dsize[1] = fsize(fd);
 250                 free(fontmap);
 251
 252                 size = 0;
 253                 for (j = 0; j < 2; j++)
 254                         for (i = 0; sizes[i].w != 0; i++)
 255                                 if (DATASIZE(sizes[i]) == dsize[j]) {
 256                                         size = dsize[j];
 257                                         io = sizes[i].io;
 258                                         j = 2;  /* XXX */
 259                                         break;
 260                                 }
 261
 262                 if (size == 0) {
 263                         warnx("%s: can't guess font size", filename);
 264                         fclose(fd);
 265                         return;
 266                 }
 267                 rewind(fd);
 268         }
 269
 270         fontmap = (char*) malloc(size);
 271         if (decode(fd, fontmap, size) != size) {
 272                 rewind(fd);
 273                 if (fsize(fd) != size || fread(fontmap, 1, size, fd) != size) {
 274                         warnx("%s: bad font file", filename);
 275                         fclose(fd);
 276                         free(fontmap);
 277                         return;
 278                 }
 279         }
 280         if (ioctl(0, io, fontmap) < 0)
 281                 warn("can't load font");
 282         fclose(fd);
 283         free(fontmap);
 284 }
 285
 286 void
 287 set_screensaver_timeout(char *arg)
 288 {
 289         int nsec;
 290
 291         if (!strcmp(arg, "off"))
 292                 nsec = 0;
 293         else {
 294                 nsec = atoi(arg);
 295                 if ((*arg == '\0') || (nsec < 1)) {
 296                         warnx("argument must be a positive number");
 297                         return;
 298                 }
 299         }
 300         if (ioctl(0, CONS_BLANKTIME, &nsec) == -1)
 301                 warn("setting screensaver period");
 302 }
 303
 304 void
 305 set_cursor_type(char *appearence)
 306 {
 307         int type;
 308
 309         if (!strcmp(appearence, "normal"))
 310                 type = 0;
 311         else if (!strcmp(appearence, "blink"))
 312                 type = 1;
 313         else if (!strcmp(appearence, "destructive"))
 314                 type = 3;
 315         else {
 316                 warnx("argument to -c must be normal, blink or destructive");
 317                 return;
 318         }
 319         ioctl(0, CONS_CURSORTYPE, &type);
 320 }
 321
 322 void
 323 video_mode(int argc, char **argv, int *index)
 324 {
 325         static struct {
 326                 char *name;
 327                 unsigned long mode;
 328         } modes[] = {
 329                 { "80x25",              SW_TEXT_80x25 },
 330                 { "80x30",              SW_TEXT_80x30 },
 331                 { "80x43",              SW_TEXT_80x43 },
 332                 { "80x50",              SW_TEXT_80x50 },
 333                 { "80x60",              SW_TEXT_80x60 },
 334                 { "132x25",             SW_TEXT_132x25 },
 335                 { "132x30",             SW_TEXT_132x30 },
 336                 { "132x43",             SW_TEXT_132x43 },
 337                 { "132x50",             SW_TEXT_132x50 },
 338                 { "132x60",             SW_TEXT_132x60 },
 339                 { "VGA_40x25",          SW_VGA_C40x25 },
 340                 { "VGA_80x25",          SW_VGA_C80x25 },
 341                 { "VGA_80x30",          SW_VGA_C80x30 },
 342                 { "VGA_80x50",          SW_VGA_C80x50 },
 343                 { "VGA_80x60",          SW_VGA_C80x60 },
 344 #ifdef SW_VGA_C90x25
 345                 { "VGA_90x25",          SW_VGA_C90x25 },
 346                 { "VGA_90x30",          SW_VGA_C90x30 },
 347                 { "VGA_90x43",          SW_VGA_C90x43 },
 348                 { "VGA_90x50",          SW_VGA_C90x50 },
 349                 { "VGA_90x60",          SW_VGA_C90x60 },
 350 #endif
 351                 { "VGA_320x200",        SW_VGA_CG320 },
 352                 { "EGA_80x25",          SW_ENH_C80x25 },
 353                 { "EGA_80x43",          SW_ENH_C80x43 },
 354                 { "VESA_132x25",        SW_VESA_C132x25 },
 355                 { "VESA_132x43",        SW_VESA_C132x43 },
 356                 { "VESA_132x50",        SW_VESA_C132x50 },
 357                 { "VESA_132x60",        SW_VESA_C132x60 },
 358                 { "VESA_800x600",       SW_VESA_800x600 },
 359                 { NULL },
 360         };
 361         unsigned long mode = 0;
 362         int cur_mode;
 363         int ioerr;
 364         int size[3];
 365         int i;
 366
 367         if (ioctl(0, CONS_GET, &cur_mode) < 0)
 368                 err(1, "cannot get the current video mode");
 369         if (*index < argc) {
 370                 for (i = 0; modes[i].name != NULL; ++i) {
 371                         if (!strcmp(argv[*index], modes[i].name)) {
 372                                 mode = modes[i].mode;
 373                                 break;
 374                         }
 375                 }
 376                 if (modes[i].name == NULL)
 377                         return;
 378                 if (ioctl(0, mode, NULL) < 0)
 379                         warn("cannot set videomode");
 380                 if (mode == SW_VESA_800x600) {
 381                         /* columns */
 382                         if ((vesa_cols * 8 > 800) || (vesa_cols <= 0)) {
 383                                 warnx("incorrect number of columns: %d",
 384                                       vesa_cols);
 385                                 size[0] = _VESA_800x600_DFL_COLS;
 386                         } else {
 387                                 size[0] = vesa_cols;
 388                         }
 389                         /* rows */
 390                         if ((vesa_rows * _VESA_800x600_DFL_FNSZ > 600) ||
 391                             (vesa_rows <=0)) {
 392                                 warnx("incorrect number of rows: %d",
 393                                       vesa_rows);
 394                                 size[1] = _VESA_800x600_DFL_ROWS;
 395                         } else {
 396                                 size[1] = vesa_rows;
 397                         }
 398                         /* font size */
 399                         size[2] = _VESA_800x600_DFL_FNSZ;
 400                         if (ioctl(0, KDRASTER, size)) {
 401                                 ioerr = errno;
 402                                 if (cur_mode >= M_VESA_BASE)
 403                                         ioctl(0,
 404                                             _IO('V', cur_mode - M_VESA_BASE),
 405                                             NULL);
 406                                 else
 407                                         ioctl(0, _IO('S', cur_mode), NULL);
 408                                 warnc(ioerr, "cannot activate raster display");
 409                         }
 410                 }
 411                 (*index)++;
 412         }
 413         return;
 414 }
 415
 416 int
 417 get_color_number(char *color)
 418 {
 419         int i;
 420
 421         for (i=0; i<16; i++)
 422                 if (!strcmp(color, legal_colors[i]))
 423                         return i;
 424         return -1;
 425 }
 426
 427 void
 428 set_normal_colors(int argc, char **argv, int *index)
 429 {
 430         int color;
 431
 432         if (*index < argc && (color = get_color_number(argv[*index])) != -1) {
 433                 (*index)++;
 434                 fprintf(stderr, "\e[=%dF", color);
 435                 if (*index < argc
 436                     && (color = get_color_number(argv[*index])) != -1
 437                     && color < 8) {
 438                         (*index)++;
 439                         fprintf(stderr, "\e[=%dG", color);
 440                 }
 441         }
 442 }
 443
 444 void
 445 set_reverse_colors(int argc, char **argv, int *index)
 446 {
 447         int color;
 448
 449         if ((color = get_color_number(argv[*(index)-1])) != -1) {
 450                 fprintf(stderr, "\e[=%dH", color);
 451                 if (*index < argc
 452                     && (color = get_color_number(argv[*index])) != -1
 453                     && color < 8) {
 454                         (*index)++;
 455                         fprintf(stderr, "\e[=%dI", color);
 456                 }
 457         }
 458 }
 459
 460 void
 461 set_console(char *arg)
 462 {
 463         int n;
 464
 465         if( !arg || strspn(arg,"0123456789") != strlen(arg)) {
 466                 warnx("bad console number");
 467                 return;
 468         }
 469
 470         n = atoi(arg);
 471         if (n < 1 || n > 16) {
 472                 warnx("console number out of range");
 473         } else if (ioctl(0, VT_ACTIVATE, (caddr_t) (long) n) == -1)
 474                 warn("ioctl(VT_ACTIVATE)");
 475 }
 476
 477 void
 478 set_border_color(char *arg)
 479 {
 480         int color;
 481
 482         if ((color = get_color_number(arg)) != -1) {
 483                 fprintf(stderr, "\e[=%dA", color);
 484         }
 485         else
 486                 usage();
 487 }
 488
 489 void
 490 set_mouse_char(char *arg)
 491 {
 492         struct mouse_info mouse;
 493         long l;
 494
 495         l = strtol(arg, NULL, 0);
 496         if ((l < 0) || (l > UCHAR_MAX - 3)) {
 497                 warnx("argument to -M must be 0 through %d", UCHAR_MAX - 3);
 498                 return;
 499         }
 500         mouse.operation = MOUSE_MOUSECHAR;
 501         mouse.u.mouse_char = (int)l;
 502         ioctl(0, CONS_MOUSECTL, &mouse);
 503 }
 504
 505 void
 506 set_mouse(char *arg)
 507 {
 508         struct mouse_info mouse;
 509
 510         if (!strcmp(arg, "on"))
 511                 mouse.operation = MOUSE_SHOW;
 512         else if (!strcmp(arg, "off"))
 513                 mouse.operation = MOUSE_HIDE;
 514         else {
 515                 warnx("argument to -m must either on or off");
 516                 return;
 517         }
 518         ioctl(0, CONS_MOUSECTL, &mouse);
 519 }
 520
 521 static char
 522 *adapter_name(int type)
 523 {
 524     static struct {
 525         int type;
 526         char *name;
 527     } names[] = {
 528         { KD_MONO,      "MDA" },
 529         { KD_HERCULES,  "Hercules" },
 530         { KD_CGA,       "CGA" },
 531         { KD_EGA,       "EGA" },
 532         { KD_VGA,       "VGA" },
 533         { KD_PC98,      "PC-98xx" },
 534         { KD_TGA,       "TGA" },
 535         { -1,           "Unknown" },
 536     };
 537     int i;
 538
 539     for (i = 0; names[i].type != -1; ++i)
 540         if (names[i].type == type)
 541             break;
 542     return names[i].name;
 543 }
 544
 545 void
 546 show_adapter_info(void)
 547 {
 548         struct video_adapter_info ad;
 549
 550         ad.va_index = 0;
 551         if (ioctl(0, CONS_ADPINFO, &ad)) {
 552                 warn("failed to obtain adapter information");
 553                 return;
 554         }
 555
 556         printf("fb%d:\n", ad.va_index);
 557         printf("    %.*s%d, type:%s%s (%d), flags:0x%x\n",
 558                (int)sizeof(ad.va_name), ad.va_name, ad.va_unit,
 559                (ad.va_flags & V_ADP_VESA) ? "VESA " : "",
 560                adapter_name(ad.va_type), ad.va_type, ad.va_flags);
 561         printf("    initial mode:%d, current mode:%d, BIOS mode:%d\n",
 562                ad.va_initial_mode, ad.va_mode, ad.va_initial_bios_mode);
 563         printf("    frame buffer window:0x%x, buffer size:0x%x\n",
 564                ad.va_window, ad.va_buffer_size);
 565         printf("    window size:0x%x, origin:0x%x\n",
 566                ad.va_window_size, ad.va_window_orig);
 567         printf("    display start address (%d, %d), scan line width:%d\n",
 568                ad.va_disp_start.x, ad.va_disp_start.y, ad.va_line_width);
 569         printf("    reserved:0x%x\n", ad.va_unused0);
 570 }
 571
 572 void
 573 show_mode_info(void)
 574 {
 575         struct video_info info;
 576         char buf[80];
 577         int mode;
 578         int c;
 579
 580         printf("    mode#     flags   type    size       "
 581                "font      window      linear buffer\n");
 582         printf("---------------------------------------"
 583                "---------------------------------------\n");
 584         for (mode = 0; mode < M_VESA_MODE_MAX; ++mode) {
 585                 info.vi_mode = mode;
 586                 if (ioctl(0, CONS_MODEINFO, &info))
 587                         continue;
 588                 if (info.vi_mode != mode)
 589                         continue;
 590
 591                 printf("%3d (0x%03x)", mode, mode);
 592                 printf(" 0x%08x", info.vi_flags);
 593                 if (info.vi_flags & V_INFO_GRAPHICS) {
 594                         c = 'G';
 595                         snprintf(buf, sizeof(buf), "%dx%dx%d %d",
 596                                  info.vi_width, info.vi_height,
 597                                  info.vi_depth, info.vi_planes);
 598                 } else {
 599                         c = 'T';
 600                         snprintf(buf, sizeof(buf), "%dx%d",
 601                                  info.vi_width, info.vi_height);
 602                 }
 603                 printf(" %c %-15s", c, buf);
 604                 snprintf(buf, sizeof(buf), "%dx%d",
 605                          info.vi_cwidth, info.vi_cheight);
 606                 printf(" %-5s", buf);
 607                 printf(" 0x%05x %2dk %2dk",
 608                        info.vi_window, (int)info.vi_window_size/1024,
 609                        (int)info.vi_window_gran/1024);
 610                 printf(" 0x%08x %dk\n",
 611                        info.vi_buffer, (int)info.vi_buffer_size/1024);
 612         }
 613 }
 614
 615 void
 616 show_info(char *arg)
 617 {
 618         if (!strcmp(arg, "adapter"))
 619                 show_adapter_info();
 620         else if (!strcmp(arg, "mode"))
 621                 show_mode_info();
 622         else {
 623                 warnx("argument to -i must either adapter or mode");
 624                 return;
 625         }
 626 }
 627
 628 void
 629 test_frame()
 630 {
 631         int i;
 632
 633         fprintf(stdout, "\e[=0G\n\n");
 634         for (i=0; i<8; i++) {
 635                 fprintf(stdout, "\e[=15F\e[=0G        %2d \e[=%dF%-16s"
 636                                 "\e[=15F\e[=0G        %2d \e[=%dF%-16s        "
 637                                 "\e[=15F %2d \e[=%dGBACKGROUND\e[=0G\n",
 638                         i, i, legal_colors[i], i+8, i+8,
 639                         legal_colors[i+8], i, i);
 640         }
 641         fprintf(stdout, "\e[=%dF\e[=%dG\e[=%dH\e[=%dI\n",
 642                 info.mv_norm.fore, info.mv_norm.back,
 643                 info.mv_rev.fore, info.mv_rev.back);
 644 }
 645
 646 /*
 647  * Snapshot the video memory of that terminal, using the CONS_SCRSHOT
 648  * ioctl, and writes the results to stdout either in the special
 649  * binary format (see manual page for details), or in the plain
 650  * text format.
 651  */
 652 void
 653 dump_screen(int mode)
 654 {
 655         scrshot_t shot;
 656         vid_info_t info;
 657
 658         info.size = sizeof(info);
 659         if (ioctl(0, CONS_GETINFO, &info) == -1) {
 660                 warn("failed to obtain current video mode parameters");
 661                 return;
 662         }
 663
 664         shot.buf = alloca(info.mv_csz * info.mv_rsz * sizeof(u_int16_t));
 665         if (shot.buf == NULL) {
 666                 warn("failed to allocate memory for dump");
 667                 return;
 668         }
 669
 670         shot.xsize = info.mv_csz;
 671         shot.ysize = info.mv_rsz;
 672         if (ioctl(0, CONS_SCRSHOT, &shot) == -1) {
 673                 warn("failed to get dump of the screen");
 674                 return;
 675         }
 676
 677         if (mode == DUMP_RAW) {
 678                 printf("SCRSHOT_%c%c%c%c", DUMP_FMT_REV, 2,
 679                        shot.xsize, shot.ysize);
 680                 fflush(stdout);
 681
 682                 (void)write(STDOUT_FILENO, shot.buf,
 683                             shot.xsize * shot.ysize * sizeof(u_int16_t));
 684         } else {
 685                 char *line;
 686                 int x, y;
 687                 u_int16_t ch;
 688
 689                 line = alloca(shot.xsize + 1);
 690                 if (line == NULL) {
 691                         warn("failed to allocate memory for line buffer");
 692                         return;
 693                 }
 694
 695                 for (y = 0; y < shot.ysize; y++) {
 696                         for (x = 0; x < shot.xsize; x++) {
 697                                 ch = shot.buf[x + (y * shot.xsize)];
 698                                 ch &= 0xff;
 699                                 if (isprint(ch) == 0)
 700                                         ch = ' ';
 701                                 line[x] = (char)ch;
 702                         }
 703
 704                         /* Trim trailing spaces */
 705                         do {
 706                                 line[x--] = '\0';
 707                         } while (line[x] == ' ' && x != 0);
 708
 709                         puts(line);
 710                 }
 711                 fflush(stdout);
 712         }
 713
 714         return;
 715 }
 716
 717 void
 718 set_history(char *opt)
 719 {
 720         int size;
 721
 722         size = atoi(opt);
 723         if ((*opt == '\0') || size < 0) {
 724                 warnx("argument must be a positive number");
 725                 return;
 726         }
 727         if (ioctl(0, CONS_HISTORY, &size) == -1)
 728                 warn("setting history buffer size");
 729 }
 730
 731 void
 732 clear_history()
 733 {
 734
 735         if (ioctl(0, CONS_CLRHIST) == -1)
 736                 warn("clear history buffer");
 737 }
 738
 739 int
 740 main(int argc, char **argv)
 741 {
 742         char    *font, *type;
 743         int     opt;
 744
 745
 746         info.size = sizeof(info);
 747         if (argc == 1)
 748                 usage();
 749                 /* Not reached */
 750         if (ioctl(0, CONS_GETINFO, &info) < 0)
 751                 err(1, "must be on a virtual console");
 752         while((opt = getopt(argc, argv, "b:Cc:df:g:h:i:l:LM:m:pPr:s:t:x")) != -1)
 753                 switch(opt) {
 754                 case 'b':
 755                         set_border_color(optarg);
 756                         break;
 757                 case 'C':
 758                         clear_history();
 759                         break;
 760                 case 'c':
 761                         set_cursor_type(optarg);
 762                         break;
 763                 case 'd':
 764                         print_scrnmap();
 765                         break;
 766                 case 'f':
 767                         type = optarg;
 768                         font = nextarg(argc, argv, &optind, 'f', 0);
 769                         if (font == NULL) {
 770                                 type = NULL;
 771                                 font = optarg;
 772                         }
 773                         load_font(type, font);
 774                         break;
 775                 case 'g':
 776                         if (sscanf(optarg, "%dx%d", &vesa_cols,
 777                             &vesa_rows) != 2) {
 778                                 warnx("incorrect geometry: %s", optarg);
 779                                 usage();
 780                         }
 781                         break;
 782                 case 'h':
 783                         set_history(optarg);
 784                         break;
 785                 case 'i':
 786                         show_info(optarg);
 787                         break;
 788                 case 'l':
 789                         load_scrnmap(optarg);
 790                         break;
 791                 case 'L':
 792                         load_default_scrnmap();
 793                         break;
 794                 case 'M':
 795                         set_mouse_char(optarg);
 796                         break;
 797                 case 'm':
 798                         set_mouse(optarg);
 799                         break;
 800                 case 'p':
 801                         dump_screen(DUMP_RAW);
 802                         break;
 803                 case 'P':
 804                         dump_screen(DUMP_TXT);
 805                         break;
 806                 case 'r':
 807                         set_reverse_colors(argc, argv, &optind);
 808                         break;
 809                 case 's':
 810                         set_console(optarg);
 811                         break;
 812                 case 't':
 813                         set_screensaver_timeout(optarg);
 814                         break;
 815                 case 'x':
 816                         hex = 1;
 817                         break;
 818                 default:
 819                         usage();
 820                 }
 821         video_mode(argc, argv, &optind);
 822         set_normal_colors(argc, argv, &optind);
 823         if (optind < argc && !strcmp(argv[optind], "show")) {
 824                 test_frame();
 825                 optind++;
 826         }
 827         if ((optind != argc) || (argc == 1))
 828                 usage();
 829         return 0;
 830 }
 831