*
* 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 "libbb.h"
#include <sys/kd.h>
+#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 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 */
+
+#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 */
+
+
enum {
PSF_MAGIC1 = 0x36,
PSF_MAGIC2 = 0x04,
PSF_MODE512 = 0x01,
PSF_MODEHASTAB = 0x02,
PSF_MAXMODE = 0x03,
- PSF_SEPARATOR = 0xFFFF
+ PSF_SEPARATOR = 0xffff
};
struct psf_header {
unsigned char charsize; /* Character size */
};
-#define PSF_MAGIC_OK(x) ((x).magic1 == PSF_MAGIC1 && (x).magic2 == PSF_MAGIC2)
+#define PSF_MAGIC_OK(x) ((x)->magic1 == PSF_MAGIC1 && (x)->magic2 == PSF_MAGIC2)
static void do_loadfont(int fd, unsigned char *inbuf, int unit, int fontsize)
{
bb_error_msg_and_die("bad character size %d", unit);
buf = xzalloc(16 * 1024);
- /*memset(buf, 0, 16 * 1024);*/
for (i = 0; i < fontsize; i++)
memcpy(buf + (32 * i), inbuf + (unit * i), unit);
+ { /* 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.chardata = buf;
if (!ioctl_or_perror(fd, PIO_FONTX, &cfd, "PIO_FONTX ioctl failed (will try PIO_FONT)"))
- goto ret; /* success */
+ goto ret; /* success */
}
#endif
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;
int glyph;
uint16_t unicode;
- maxct = tailsz; /* more than enough */
+ maxct = tailsz; /* more than enough */
up = xmalloc(maxct * sizeof(struct unipair));
for (glyph = 0; glyph < fontsize; glyph++) {
xioctl(fd, PIO_UNIMAP, &ud);
}
-static void loadnewfont(int fd)
+static void do_load(int fd, struct psf_header *psfhdr, size_t len)
{
- enum { INBUF_SIZE = 32*1024 + 1 };
-
int unit;
- unsigned inputlth, offset;
- /* Was on stack, but 32k is a bit too much: */
- unsigned char *inbuf = xmalloc(INBUF_SIZE);
-
- /*
- * 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 = full_read(STDIN_FILENO, inbuf, INBUF_SIZE);
- if (inputlth < 0)
- bb_perror_msg_and_die("error reading input font");
- if (inputlth >= INBUF_SIZE)
- bb_error_msg_and_die("font too large");
+ int fontsize;
+ int hastable;
+ unsigned head0, head = head;
/* test for psf first */
- {
- struct psf_header psfhdr;
- int fontsize;
- int hastable;
- unsigned head0, head;
-
- if (inputlth < sizeof(struct psf_header))
- goto no_psf;
-
- psfhdr = *(struct psf_header *) &inbuf[0];
-
- if (!PSF_MAGIC_OK(psfhdr))
- goto no_psf;
-
- if (psfhdr.mode > PSF_MAXMODE)
+ 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);
+ 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
- hastable = (psfhdr.mode & PSF_MODEHASTAB);
- unit = psfhdr.charsize;
+ hastable = (psfhdr->mode & PSF_MODEHASTAB);
+ unit = psfhdr->charsize;
head0 = sizeof(struct psf_header);
head = head0 + fontsize * unit;
- if (head > inputlth || (!hastable && head != inputlth))
+ if (head > len || (!hastable && head != len))
bb_error_msg_and_die("input file: bad length");
- do_loadfont(fd, inbuf + head0, unit, fontsize);
- if (hastable)
- do_loadtable(fd, inbuf + head, inputlth - head, fontsize);
- return;
- }
-
- no_psf:
- /* file with three code pages? */
- if (inputlth == 9780) {
- offset = 40;
- unit = 16;
} else {
- /* bare font */
- if (inputlth & 0377)
- bb_error_msg_and_die("bad input file size");
- offset = 0;
- unit = inputlth / 256;
+ /* 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, inbuf + offset, unit, 256);
+
+ do_loadfont(fd, (unsigned char *)psfhdr + head0, unit, fontsize);
+ if (hastable)
+ do_loadtable(fd, (unsigned char *)psfhdr + head, len - head, fontsize);
}
+#if ENABLE_LOADFONT
int loadfont_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int loadfont_main(int argc, char **argv ATTRIBUTE_UNUSED)
+int loadfont_main(int argc UNUSED_PARAM, char **argv)
+{
+ 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.
+ */
+ 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);
+
+ return EXIT_SUCCESS;
+}
+#endif
+
+#if ENABLE_SETFONT
+
+/*
+kbd-1.12:
+
+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]
+
+-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
+
+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 (argc != 1)
- bb_show_usage();
+ 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");
+ }
+ }
+ // 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);
+
+ // 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;
+ }
+#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;
- fd = xopen(CURRENT_VC, O_RDWR);
- loadnewfont(fd);
+ 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);
+ }
return EXIT_SUCCESS;
}
+#endif
projects / oweals / busybox.git / blobdiff