| /* showfont.c - aeb, 940207 - updated 2001-02-06 */ |
| /* renamed to showconsolefont.c to avoid clash with the X showfont */ |
| |
| #include "config.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <sys/ioctl.h> |
| #include <linux/kd.h> |
| #include "nls.h" |
| #include "getfd.h" |
| #include "version.h" |
| #include "kdmapop.h" |
| #include "kdfontop.h" |
| #include "kbd_error.h" |
| #include "xmalloc.h" |
| |
| /* |
| * Showing the font is nontrivial mostly because testing whether |
| * we are in utf8 mode cannot be done in an easy and clean way. |
| * So, we set up things here in such a way that it does not matter |
| * whether we are in utf8 mode. |
| */ |
| |
| unsigned short obuf[E_TABSZ], nbuf[E_TABSZ]; |
| struct unimapdesc ounimap, nunimap; |
| int fd = 0; |
| int have_obuf = 0; |
| int have_ounimap = 0; |
| |
| static void __attribute__((noreturn)) |
| leave(int n) |
| { |
| if (have_obuf && loaduniscrnmap(fd, obuf)) { |
| kbd_warning(0, _("failed to restore original translation table\n")); |
| n = EXIT_FAILURE; |
| } |
| if (have_ounimap && loadunimap(fd, NULL, &ounimap)) { |
| kbd_warning(0, _("failed to restore original unimap\n")); |
| n = EXIT_FAILURE; |
| } |
| exit(n); |
| } |
| |
| static void |
| settrivialscreenmap(void) |
| { |
| int i; |
| |
| if (getuniscrnmap(fd, obuf)) |
| exit(1); |
| have_obuf = 1; |
| |
| for (i = 0; i < E_TABSZ; i++) |
| nbuf[i] = i; |
| |
| if (loaduniscrnmap(fd, nbuf)) { |
| kbd_error(EXIT_FAILURE, 0, _("cannot change translation table\n")); |
| } |
| } |
| |
| static void |
| getoldunicodemap(void) |
| { |
| struct unimapdesc descr; |
| |
| if (getunimap(fd, &descr)) |
| leave(EXIT_FAILURE); |
| ounimap = descr; |
| have_ounimap = 1; |
| } |
| |
| #define BASE 041 /* ' '+1 */ |
| |
| static void |
| setnewunicodemap(int *list, int cnt) |
| { |
| int i; |
| |
| if (!nunimap.entry_ct) { |
| nunimap.entry_ct = 512; |
| nunimap.entries = (struct unipair *)xmalloc(nunimap.entry_ct * sizeof(struct unipair)); |
| } |
| for (i = 0; i < 512; i++) { |
| nunimap.entries[i].fontpos = i; |
| nunimap.entries[i].unicode = 0; |
| } |
| for (i = 0; i < cnt; i++) |
| nunimap.entries[list[i]].unicode = BASE + i; |
| |
| if (loadunimap(fd, NULL, &nunimap)) |
| leave(EXIT_FAILURE); |
| } |
| |
| static void __attribute__((noreturn)) |
| usage(void) |
| { |
| fprintf(stderr, |
| _("usage: showconsolefont -V|--version\n" |
| " showconsolefont [-C tty] [-v] [-i]\n" |
| "(probably after loading a font with `setfont font')\n" |
| "\n" |
| "Valid options are:\n" |
| " -V --version Print version number and exit.\n" |
| " -C tty Device to read the font from. Default: current tty.\n" |
| " -v Be more verbose.\n" |
| " -i Don't print out the font table, just show\n" |
| " ROWSxCOLSxCOUNT and exit.\n")); |
| exit(EXIT_FAILURE); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| int c, n, cols, rows, nr, i, j, k; |
| int mode; |
| char *space, *sep, *console = NULL; |
| int list[64], lth, info = 0, verbose = 0; |
| |
| set_progname(argv[0]); |
| |
| setlocale(LC_ALL, ""); |
| bindtextdomain(PACKAGE_NAME, LOCALEDIR); |
| textdomain(PACKAGE_NAME); |
| |
| if (argc == 2 && |
| (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version"))) |
| print_version_and_exit(); |
| |
| while ((c = getopt(argc, argv, "ivC:")) != EOF) { |
| switch (c) { |
| case 'i': |
| info = 1; |
| break; |
| case 'v': |
| verbose = 1; |
| break; |
| case 'C': |
| console = optarg; |
| break; |
| default: |
| usage(); |
| } |
| } |
| |
| if (optind != argc) |
| usage(); |
| |
| if ((fd = getfd(console)) < 0) |
| kbd_error(EXIT_FAILURE, 0, _("Couldn't get a file descriptor referring to the console")); |
| |
| if (ioctl(fd, KDGKBMODE, &mode)) { |
| kbd_warning(errno, "ioctl KDGKBMODE"); |
| leave(EXIT_FAILURE); |
| } |
| if (mode == K_UNICODE) |
| space = "\xef\x80\xa0"; /* U+F020 (direct-to-font space) */ |
| else |
| space = " "; |
| |
| if (info) { |
| nr = rows = cols = 0; |
| n = getfont(fd, NULL, &nr, &rows, &cols); |
| if (n != 0) |
| leave(EXIT_FAILURE); |
| |
| if (verbose) { |
| printf(_("Character count: %d\n"), nr); |
| printf(_("Font width : %d\n"), rows); |
| printf(_("Font height : %d\n"), cols); |
| } else |
| printf("%dx%dx%d\n", rows, cols, nr); |
| leave(EXIT_SUCCESS); |
| } |
| |
| settrivialscreenmap(); |
| getoldunicodemap(); |
| |
| n = getfontsize(fd); |
| if (verbose) |
| printf(_("Showing %d-char font\n\n"), n); |
| cols = ((n > 256) ? 32 : 16); |
| nr = 64 / cols; |
| rows = (n + cols - 1) / cols; |
| sep = ((cols == 16) ? "%1$s%1$s" : "%1$s"); |
| |
| for (i = 0; i < rows; i++) { |
| if (i % nr == 0) { |
| lth = 0; |
| for (k = i; k < i + nr; k++) |
| for (j = 0; j < cols; j++) |
| list[lth++] = k + j * rows; |
| setnewunicodemap(list, lth); |
| } |
| printf("%1$s%1$s%1$s%1$s", space); |
| for (j = 0; j < cols && i + j * rows < n; j++) { |
| putchar(BASE + (i % nr) * cols + j); |
| printf(sep, space); |
| if (j % 8 == 7) |
| printf(sep, space); |
| } |
| putchar('\n'); |
| if (i % 8 == 7) |
| putchar('\n'); |
| fflush(stdout); |
| } |
| |
| leave(EXIT_SUCCESS); |
| return EXIT_SUCCESS; |
| } |