*
* Loads the console font, and possibly the corresponding screen map(s).
* (Adapted for busybox by Matej Vela.)
+ *
+ * Licensed under GPLv2, see file LICENSE in this tarball for details.
*/
-#include "internal.h"
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <memory.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <errno.h>
-#include <sys/ioctl.h>
+#include "libbb.h"
#include <sys/kd.h>
-#include <endian.h>
-
-#define PSF_MAGIC1 0x36
-#define PSF_MAGIC2 0x04
-
-#define PSF_MODE512 0x01
-#define PSF_MODEHASTAB 0x02
-#define PSF_MAXMODE 0x03
-#define PSF_SEPARATOR 0xFFFF
-struct psf_header {
- unsigned char magic1, magic2; /* Magic number */
- unsigned char mode; /* PSF font mode */
- unsigned char charsize; /* Character size */
+#ifndef KDFONTOP
+#define KDFONTOP 0x4B72
+struct console_font_op {
+ unsigned op; /* KD_FONT_OP_* */
+ unsigned flags; /* KD_FONT_FLAG_* */
+ unsigned width, height;
+ unsigned charcount;
+ unsigned char *data; /* font data with height fixed to 32 */
};
-#define PSF_MAGIC_OK(x) ((x).magic1 == PSF_MAGIC1 && (x).magic2 == PSF_MAGIC2)
+#define KD_FONT_OP_SET 0 /* Set font */
+#define KD_FONT_OP_GET 1 /* Get font */
+#define KD_FONT_OP_SET_DEFAULT 2 /* Set font to default,
+ data points to name / NULL */
+#define KD_FONT_OP_COPY 3 /* Copy from another console */
-static void loadnewfont(int fd);
+#define KD_FONT_FLAG_OLD 0x80000000 /* Invoked via old interface */
+#define KD_FONT_FLAG_DONT_RECALC 1 /* Don't call adjust_height() */
+ /* (Used internally for PIO_FONT support) */
+#endif /* KDFONTOP */
-extern int loadfont_main(int argc, char **argv)
-{
- int fd;
- if (argc>=2 && *argv[1]=='-') {
- usage(loadfont_usage);
- }
+enum {
+ PSF_MAGIC1 = 0x36,
+ PSF_MAGIC2 = 0x04,
- fd = open("/dev/tty0", O_RDWR);
- if (fd < 0) {
- errorMsg("Error opening /dev/tty0: %s\n", strerror(errno));
- return( FALSE);
- }
- loadnewfont(fd);
+ PSF_MODE512 = 0x01,
+ PSF_MODEHASTAB = 0x02,
+ PSF_MAXMODE = 0x03,
+ PSF_SEPARATOR = 0xffff
+};
- return( TRUE);
-}
+struct psf_header {
+ unsigned char magic1, magic2; /* Magic number */
+ unsigned char mode; /* PSF font mode */
+ unsigned char charsize; /* Character size */
+};
+
+#define PSF_MAGIC_OK(x) ((x)->magic1 == PSF_MAGIC1 && (x)->magic2 == PSF_MAGIC2)
-static void do_loadfont(int fd, char *inbuf, int unit, int fontsize)
+static void do_loadfont(int fd, unsigned char *inbuf, int unit, int fontsize)
{
- char buf[16384];
+ char *buf;
int i;
- memset(buf, 0, sizeof(buf));
-
- if (unit < 1 || unit > 32) {
- errorMsg("Bad character size %d\n", unit);
- exit(1);
- }
+ if (unit < 1 || unit > 32)
+ bb_error_msg_and_die("bad character size %d", unit);
+ buf = xzalloc(16 * 1024);
for (i = 0; i < fontsize; i++)
memcpy(buf + (32 * i), inbuf + (unit * i), unit);
-#if defined( PIO_FONTX ) && !defined( __sparc__ )
+ { /* KDFONTOP */
+ struct console_font_op cfo;
+
+ cfo.op = KD_FONT_OP_SET;
+ cfo.flags = 0;
+ cfo.width = 8;
+ cfo.height = unit;
+ cfo.charcount = fontsize;
+ cfo.data = (void*)buf;
+#if 0
+ if (!ioctl_or_perror(fd, KDFONTOP, &cfo, "KDFONTOP ioctl failed (will try PIO_FONTX)"))
+ goto ret; /* success */
+#else
+ xioctl(fd, KDFONTOP, &cfo);
+#endif
+ }
+
+#if 0
+/* These ones do not honour -C tty (they set font on current tty regardless)
+ * On x86, this distinction is visible on framebuffer consoles
+ * (regular character consoles may have only one shared font anyway)
+ */
+#if defined(PIO_FONTX) && !defined(__sparc__)
{
struct consolefontdesc cfd;
cfd.charheight = unit;
cfd.chardata = buf;
- if (ioctl(fd, PIO_FONTX, &cfd) == 0)
- return; /* success */
- perror("PIO_FONTX ioctl error (trying PIO_FONT)");
+ if (!ioctl_or_perror(fd, PIO_FONTX, &cfd, "PIO_FONTX ioctl failed (will try PIO_FONT)"))
+ goto ret; /* success */
}
#endif
- if (ioctl(fd, PIO_FONT, buf)) {
- perror("PIO_FONT ioctl error");
- exit(1);
- }
+ xioctl(fd, PIO_FONT, buf);
+ ret:
+#endif /* 0 */
+ free(buf);
}
-static void
-do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize)
+static void do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize)
{
struct unimapinit advice;
struct unimapdesc ud;
struct unipair *up;
int ct = 0, maxct;
int glyph;
- u_short unicode;
+ uint16_t unicode;
- maxct = tailsz; /* more than enough */
- up = (struct unipair *) malloc(maxct * sizeof(struct unipair));
+ maxct = tailsz; /* more than enough */
+ up = xmalloc(maxct * sizeof(struct unipair));
- if (!up) {
- errorMsg("Out of memory?\n");
- exit(1);
- }
for (glyph = 0; glyph < fontsize; glyph++) {
while (tailsz >= 2) {
- unicode = (((u_short) inbuf[1]) << 8) + inbuf[0];
+ unicode = (((uint16_t) inbuf[1]) << 8) + inbuf[0];
tailsz -= 2;
inbuf += 2;
if (unicode == PSF_SEPARATOR)
advice.advised_hashsize = 0;
advice.advised_hashstep = 0;
advice.advised_hashlevel = 0;
- if (ioctl(fd, PIO_UNIMAPCLR, &advice)) {
-#ifdef ENOIOCTLCMD
- if (errno == ENOIOCTLCMD) {
- errorMsg("It seems this kernel is older than 1.1.92\n");
- errorMsg("No Unicode mapping table loaded.\n");
- } else
-#endif
- perror("PIO_UNIMAPCLR");
- exit(1);
- }
+ xioctl(fd, PIO_UNIMAPCLR, &advice);
ud.entry_ct = ct;
ud.entries = up;
- if (ioctl(fd, PIO_UNIMAP, &ud)) {
-#if 0
- if (errno == ENOMEM) {
- /* change advice parameters */
- }
+ xioctl(fd, PIO_UNIMAP, &ud);
+}
+
+static void do_load(int fd, struct psf_header *psfhdr, size_t len)
+{
+ int unit;
+ int fontsize;
+ int hastable;
+ unsigned head0, head = head;
+
+ /* test for psf first */
+ if (len >= sizeof(struct psf_header) && PSF_MAGIC_OK(psfhdr)) {
+ if (psfhdr->mode > PSF_MAXMODE)
+ bb_error_msg_and_die("unsupported psf file mode");
+ fontsize = ((psfhdr->mode & PSF_MODE512) ? 512 : 256);
+#if !defined(PIO_FONTX) || defined(__sparc__)
+ if (fontsize != 256)
+ bb_error_msg_and_die("only fontsize 256 supported");
#endif
- perror("PIO_UNIMAP");
- exit(1);
+ hastable = (psfhdr->mode & PSF_MODEHASTAB);
+ unit = psfhdr->charsize;
+ head0 = sizeof(struct psf_header);
+
+ head = head0 + fontsize * unit;
+ if (head > len || (!hastable && head != len))
+ bb_error_msg_and_die("input file: bad length");
+ } else {
+ /* file with three code pages? */
+ if (len == 9780) {
+ head0 = 40;
+ unit = 16;
+ } else {
+ /* bare font */
+ if (len & 0377)
+ bb_error_msg_and_die("input file: bad length");
+ head0 = 0;
+ unit = len / 256;
+ }
+ fontsize = 256;
+ hastable = 0;
}
+
+ do_loadfont(fd, (unsigned char *)psfhdr + head0, unit, fontsize);
+ if (hastable)
+ do_loadtable(fd, (unsigned char *)psfhdr + head, len - head, fontsize);
}
-static void loadnewfont(int fd)
+#if ENABLE_LOADFONT
+int loadfont_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int loadfont_main(int argc UNUSED_PARAM, char **argv)
{
- int unit;
- char inbuf[32768]; /* primitive */
- unsigned int inputlth, offset;
+ size_t len;
+ struct psf_header *psfhdr;
+
+ // no arguments allowed!
+ opt_complementary = "=0";
+ getopt32(argv, "");
/*
* We used to look at the length of the input file
* with stat(); now that we accept compressed files,
* just read the entire file.
*/
- inputlth = fread(inbuf, 1, sizeof(inbuf), stdin);
- if (ferror(stdin)) {
- perror("Error reading input font");
- exit(1);
- }
- /* use malloc/realloc in case of giant files;
- maybe these do not occur: 16kB for the font,
- and 16kB for the map leaves 32 unicode values
- for each font position */
- if (!feof(stdin)) {
- perror("Font too large");
- exit(1);
- }
+ len = 32*1024; // can't be larger
+ psfhdr = xmalloc_read(STDIN_FILENO, &len);
+ // xmalloc_open_zipped_read_close(filename, &len);
+ if (!psfhdr)
+ bb_perror_msg_and_die("error reading input font");
+ do_load(get_console_fd_or_die(), psfhdr, len);
- /* test for psf first */
- {
- struct psf_header psfhdr;
- int fontsize;
- int hastable;
- unsigned int head0, head;
+ return EXIT_SUCCESS;
+}
+#endif
- if (inputlth < sizeof(struct psf_header))
- goto no_psf;
+#if ENABLE_SETFONT
- psfhdr = *(struct psf_header *) &inbuf[0];
+/*
+kbd-1.12:
- if (!PSF_MAGIC_OK(psfhdr))
- goto no_psf;
+setfont [-O font+umap.orig] [-o font.orig] [-om cmap.orig]
+[-ou umap.orig] [-N] [font.new ...] [-m cmap] [-u umap] [-C console]
+[-hNN] [-v] [-V]
- if (psfhdr.mode > PSF_MAXMODE) {
- errorMsg("Unsupported psf file mode\n");
- exit(1);
- }
- fontsize = ((psfhdr.mode & PSF_MODE512) ? 512 : 256);
-#if !defined( PIO_FONTX ) || defined( __sparc__ )
- if (fontsize != 256) {
- errorMsg("Only fontsize 256 supported\n");
- exit(1);
- }
+-h NN Override font height
+-o file
+ Save previous font in file
+-O file
+ Save previous font and Unicode map in file
+-om file
+ Store console map in file
+-ou file
+ Save previous Unicode map in file
+-m file
+ Load console map or Unicode console map from file
+-u file
+ Load Unicode table describing the font from file
+ Example:
+ # cp866
+ 0x00-0x7f idem
+ #
+ 0x80 U+0410 # CYRILLIC CAPITAL LETTER A
+ 0x81 U+0411 # CYRILLIC CAPITAL LETTER BE
+ 0x82 U+0412 # CYRILLIC CAPITAL LETTER VE
+-C console
+ Set the font for the indicated console
+-v Verbose
+-V Version
+*/
+
+#if ENABLE_FEATURE_SETFONT_TEXTUAL_MAP
+static int ctoi(char *s)
+{
+ if (s[0] == '\'' && s[1] != '\0' && s[2] == '\'' && s[3] == '\0')
+ return s[1];
+ // U+ means 0x
+ if (s[0] == 'U' && s[1] == '+') {
+ s[0] = '0';
+ s[1] = 'x';
+ }
+ if (!isdigit(s[0]))
+ return -1;
+ return xstrtoul(s, 0);
+}
#endif
- hastable = (psfhdr.mode & PSF_MODEHASTAB);
- unit = psfhdr.charsize;
- head0 = sizeof(struct psf_header);
- head = head0 + fontsize * unit;
- if (head > inputlth || (!hastable && head != inputlth)) {
- errorMsg("Input file: bad length\n");
- exit(1);
+int setfont_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int setfont_main(int argc UNUSED_PARAM, char **argv)
+{
+ size_t len;
+ unsigned opts;
+ int fd;
+ struct psf_header *psfhdr;
+ char *mapfilename;
+ const char *tty_name = CURRENT_TTY;
+
+ opt_complementary = "=1";
+ opts = getopt32(argv, "m:C:", &mapfilename, &tty_name);
+ argv += optind;
+
+ fd = xopen(tty_name, O_NONBLOCK);
+
+ if (sizeof(CONFIG_DEFAULT_SETFONT_DIR) > 1) { // if not ""
+ if (*argv[0] != '/') {
+ // goto default fonts location. don't die if doesn't exist
+ chdir(CONFIG_DEFAULT_SETFONT_DIR "/consolefonts");
}
- do_loadfont(fd, inbuf + head0, unit, fontsize);
- if (hastable)
- do_loadtable(fd, inbuf + head, inputlth - head, fontsize);
- return;
}
- no_psf:
+ // load font
+ len = 32*1024; // can't be larger
+ psfhdr = xmalloc_open_zipped_read_close(*argv, &len);
+ if (!psfhdr)
+ bb_simple_perror_msg_and_die(*argv);
+ do_load(fd, psfhdr, len);
- /* file with three code pages? */
- if (inputlth == 9780) {
- offset = 40;
- unit = 16;
- } else {
- /* bare font */
- if (inputlth & 0377) {
- errorMsg("Bad input file size\n");
- exit(1);
+ // load the screen map, if any
+ if (opts & 1) { // -m
+ unsigned mode = PIO_SCRNMAP;
+ void *map;
+
+ if (sizeof(CONFIG_DEFAULT_SETFONT_DIR) > 1) { // if not ""
+ if (mapfilename[0] != '/') {
+ // goto default keymaps location
+ chdir(CONFIG_DEFAULT_SETFONT_DIR "/consoletrans");
+ }
+ }
+ // fetch keymap
+ map = xmalloc_open_zipped_read_close(mapfilename, &len);
+ if (!map)
+ bb_simple_perror_msg_and_die(mapfilename);
+ // file size is 256 or 512 bytes? -> assume binary map
+ if (len == E_TABSZ || len == 2*E_TABSZ) {
+ if (len == 2*E_TABSZ)
+ mode = PIO_UNISCRNMAP;
}
- offset = 0;
- unit = inputlth / 256;
+#if ENABLE_FEATURE_SETFONT_TEXTUAL_MAP
+ // assume textual Unicode console maps:
+ // 0x00 U+0000 # NULL (NUL)
+ // 0x01 U+0001 # START OF HEADING (SOH)
+ // 0x02 U+0002 # START OF TEXT (STX)
+ // 0x03 U+0003 # END OF TEXT (ETX)
+ else {
+ int i;
+ char *token[2];
+ parser_t *parser;
+
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(map);
+ map = xmalloc(E_TABSZ * sizeof(unsigned short));
+
+#define unicodes ((unsigned short *)map)
+ // fill vanilla map
+ for (i = 0; i < E_TABSZ; i++)
+ unicodes[i] = 0xf000 + i;
+
+ parser = config_open(mapfilename);
+ while (config_read(parser, token, 2, 2, "# \t", PARSE_NORMAL | PARSE_MIN_DIE)) {
+ // parse code/value pair
+ int a = ctoi(token[0]);
+ int b = ctoi(token[1]);
+ if (a < 0 || a >= E_TABSZ
+ || b < 0 || b > 65535
+ ) {
+ bb_error_msg_and_die("map format");
+ }
+ // patch map
+ unicodes[a] = b;
+ // unicode character is met?
+ if (b > 255)
+ mode = PIO_UNISCRNMAP;
+ }
+ if (ENABLE_FEATURE_CLEAN_UP)
+ config_close(parser);
+
+ if (mode != PIO_UNISCRNMAP) {
+#define asciis ((unsigned char *)map)
+ for (i = 0; i < E_TABSZ; i++)
+ asciis[i] = unicodes[i];
+#undef asciis
+ }
+#undef unicodes
+ }
+#endif // ENABLE_FEATURE_SETFONT_TEXTUAL_MAP
+
+ // do set screen map
+ xioctl(fd, mode, map);
+
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(map);
}
- do_loadfont(fd, inbuf + offset, unit, 256);
+
+ return EXIT_SUCCESS;
}
+#endif
projects / oweals / busybox.git / blobdiff