+/* vi: set sw=4 ts=4: */
/*
* loadfont.c - Eugene Crosser & Andries Brouwer
*
*
* 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 source tree.
*/
-#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 <sys/stat.h>
-#include <dirent.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-#include <sys/kd.h>
-#include <endian.h>
-#define PSF_MAGIC1 0x36
-#define PSF_MAGIC2 0x04
+//usage:#define loadfont_trivial_usage
+//usage: "< font"
+//usage:#define loadfont_full_usage "\n\n"
+//usage: "Load a console font from stdin"
+/* //usage: "\n -C TTY Affect TTY instead of /dev/tty" */
+//usage:
+//usage:#define loadfont_example_usage
+//usage: "$ loadfont < /etc/i18n/fontname\n"
+//usage:
+//usage:#define setfont_trivial_usage
+//usage: "FONT [-m MAPFILE] [-C TTY]"
+//usage:#define setfont_full_usage "\n\n"
+//usage: "Load a console font\n"
+//usage: "\n -m MAPFILE Load console screen map"
+//usage: "\n -C TTY Affect TTY instead of /dev/tty"
+//usage:
+//usage:#define setfont_example_usage
+//usage: "$ setfont -m koi8-r /etc/i18n/fontname\n"
+
+#include "libbb.h"
+#include <sys/kd.h>
-#define PSF_MODE512 0x01
-#define PSF_MODEHASTAB 0x02
-#define PSF_MAXMODE 0x03
-#define PSF_SEPARATOR 0xFFFF
+#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 */
-static const char loadfont_usage[] = "loadfont\n"
-"\n"
-"\tLoad a console font from standard input.\n"
-"\n";
-struct psf_header
-{
- unsigned char magic1, magic2; /* Magic number */
- unsigned char mode; /* PSF font mode */
- unsigned char charsize; /* Character size */
+enum {
+ PSF1_MAGIC0 = 0x36,
+ PSF1_MAGIC1 = 0x04,
+ PSF1_MODE512 = 0x01,
+ PSF1_MODEHASTAB = 0x02,
+ PSF1_MODEHASSEQ = 0x04,
+ PSF1_MAXMODE = 0x05,
+ PSF1_STARTSEQ = 0xfffe,
+ PSF1_SEPARATOR = 0xffff,
};
-#define PSF_MAGIC_OK(x) ((x).magic1 == PSF_MAGIC1 && (x).magic2 == PSF_MAGIC2)
+struct psf1_header {
+ unsigned char magic[2]; /* Magic number */
+ unsigned char mode; /* PSF font mode */
+ unsigned char charsize; /* Character size */
+};
-static void loadnewfont(int fd);
+#define psf1h(x) ((struct psf1_header*)(x))
-extern int
-loadfont_main(int argc, char **argv)
-{
- int fd;
+#define PSF1_MAGIC_OK(x) ( \
+ (x)->magic[0] == PSF1_MAGIC0 \
+ && (x)->magic[1] == PSF1_MAGIC1 \
+)
- fd = open("/dev/tty0", O_RDWR);
- if (fd < 0) {
- fprintf(stderr, "Error opening /dev/tty0: %s\n", strerror(errno));
- return 1;
- }
- loadnewfont(fd);
+#if ENABLE_FEATURE_LOADFONT_PSF2
+enum {
+ PSF2_MAGIC0 = 0x72,
+ PSF2_MAGIC1 = 0xb5,
+ PSF2_MAGIC2 = 0x4a,
+ PSF2_MAGIC3 = 0x86,
+ PSF2_HAS_UNICODE_TABLE = 0x01,
+ PSF2_MAXVERSION = 0,
+ PSF2_STARTSEQ = 0xfe,
+ PSF2_SEPARATOR = 0xff
+};
- return 0;
-}
+struct psf2_header {
+ unsigned char magic[4];
+ unsigned int version;
+ unsigned int headersize; /* offset of bitmaps in file */
+ unsigned int flags;
+ unsigned int length; /* number of glyphs */
+ unsigned int charsize; /* number of bytes for each character */
+ unsigned int height; /* max dimensions of glyphs */
+ unsigned int width; /* charsize = height * ((width + 7) / 8) */
+};
-static void
-do_loadfont(int fd, char *inbuf, int unit, int fontsize) {
- char buf[16384];
- int i;
+#define psf2h(x) ((struct psf2_header*)(x))
- memset(buf,0,sizeof(buf));
+#define PSF2_MAGIC_OK(x) ( \
+ (x)->magic[0] == PSF2_MAGIC0 \
+ && (x)->magic[1] == PSF2_MAGIC1 \
+ && (x)->magic[2] == PSF2_MAGIC2 \
+ && (x)->magic[3] == PSF2_MAGIC3 \
+)
+#endif /* ENABLE_FEATURE_LOADFONT_PSF2 */
- if (unit < 1 || unit > 32) {
- fprintf(stderr, "Bad character size %d\n", unit);
- exit(1);
- }
- for (i = 0; i < fontsize; i++)
- memcpy(buf+(32*i), inbuf+(unit*i), unit);
+static void do_loadfont(int fd, unsigned char *inbuf, int height, int width, int charsize, int fontsize)
+{
+ unsigned char *buf;
+ int charwidth = 32 * ((width+7)/8);
+ int i;
-#if defined( PIO_FONTX ) && !defined( sparc )
- {
- struct consolefontdesc cfd;
+ if (height < 1 || height > 32 || width < 1 || width > 32)
+ bb_error_msg_and_die("bad character size %dx%d", height, width);
- cfd.charcount = fontsize;
- cfd.charheight = unit;
- cfd.chardata = buf;
+ buf = xzalloc(charwidth * ((fontsize < 128) ? 128 : fontsize));
+ for (i = 0; i < fontsize; i++)
+ memcpy(buf + (i*charwidth), inbuf + (i*charsize), charsize);
- if (ioctl(fd, PIO_FONTX, &cfd) == 0)
- return; /* success */
- perror("PIO_FONTX ioctl error (trying PIO_FONT)");
- }
-#endif
- if (ioctl(fd, PIO_FONT, buf)) {
- perror("PIO_FONT ioctl error");
- exit(1);
+ { /* KDFONTOP */
+ struct console_font_op cfo;
+ cfo.op = KD_FONT_OP_SET;
+ cfo.flags = 0;
+ cfo.width = width;
+ cfo.height = height;
+ cfo.charcount = fontsize;
+ cfo.data = buf;
+ xioctl(fd, KDFONTOP, &cfo);
}
+
+ free(buf);
}
-static void
-do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize) {
+/*
+ * Format of the Unicode information:
+ *
+ * For each font position <uc>*<seq>*<term>
+ * where <uc> is a 2-byte little endian Unicode value (PSF1)
+ * or an UTF-8 coded value (PSF2),
+ * <seq> = <ss><uc><uc>*, <ss> = psf1 ? 0xFFFE : 0xFE,
+ * <term> = psf1 ? 0xFFFF : 0xFF.
+ * and * denotes zero or more occurrences of the preceding item.
+ *
+ * Semantics:
+ * The leading <uc>* part gives Unicode symbols that are all
+ * represented by this font position. The following sequences
+ * are sequences of Unicode symbols - probably a symbol
+ * together with combining accents - also represented by
+ * this font position.
+ *
+ * Example:
+ * At the font position for a capital A-ring glyph, we
+ * may have:
+ * 00C5,212B,FFFE,0041,030A,FFFF
+ * Some font positions may be described by sequences only,
+ * namely when there is no precomposed Unicode value for the glyph.
+ */
+#if !ENABLE_FEATURE_LOADFONT_PSF2
+#define do_loadtable(fd, inbuf, tailsz, fontsize, psf2) \
+ do_loadtable(fd, inbuf, tailsz, fontsize)
+#endif
+static void do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize, int psf2)
+{
+#if !ENABLE_FEATURE_LOADFONT_PSF2
+/* gcc 4.3.1 code size: */
+# define psf2 0 /* +0 bytes */
+// const int psf2 = 0; /* +8 bytes */
+// enum { psf2 = 0 }; /* +13 bytes */
+#endif
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 = xmalloc(maxct * sizeof(*up));
- maxct = tailsz; /* more than enough */
- up = (struct unipair *) malloc(maxct * sizeof(struct unipair));
- if (!up) {
- fprintf(stderr, "Out of memory?\n");
- exit(1);
- }
for (glyph = 0; glyph < fontsize; glyph++) {
- while (tailsz >= 2) {
- unicode = (((u_short) inbuf[1]) << 8) + inbuf[0];
- tailsz -= 2;
- inbuf += 2;
- if (unicode == PSF_SEPARATOR)
- break;
- up[ct].unicode = unicode;
- up[ct].fontpos = glyph;
- ct++;
- }
+ while (tailsz > 0) {
+ if (!psf2) { /* PSF1 */
+ unicode = (((uint16_t) inbuf[1]) << 8) + inbuf[0];
+ tailsz -= 2;
+ inbuf += 2;
+ if (unicode == PSF1_SEPARATOR)
+ break;
+ } else { /* PSF2 */
+#if ENABLE_FEATURE_LOADFONT_PSF2
+ --tailsz;
+ unicode = *inbuf++;
+ if (unicode == PSF2_SEPARATOR) {
+ break;
+ } else if (unicode == PSF2_STARTSEQ) {
+ bb_error_msg_and_die("unicode sequences not implemented");
+ } else if (unicode >= 0xC0) {
+ if (unicode >= 0xFC)
+ unicode &= 0x01, maxct = 5;
+ else if (unicode >= 0xF8)
+ unicode &= 0x03, maxct = 4;
+ else if (unicode >= 0xF0)
+ unicode &= 0x07, maxct = 3;
+ else if (unicode >= 0xE0)
+ unicode &= 0x0F, maxct = 2;
+ else
+ unicode &= 0x1F, maxct = 1;
+ do {
+ if (tailsz <= 0 || *inbuf < 0x80 || *inbuf > 0xBF)
+ bb_error_msg_and_die("illegal UTF-8 character");
+ --tailsz;
+ unicode = (unicode << 6) + (*inbuf++ & 0x3F);
+ } while (--maxct > 0);
+ } else if (unicode >= 0x80) {
+ bb_error_msg_and_die("illegal UTF-8 character");
+ }
+#else
+ return;
+#endif
+ }
+ up[ct].unicode = unicode;
+ up[ct].fontpos = glyph;
+ ct++;
+ }
}
/* Note: after PIO_UNIMAPCLR and before PIO_UNIMAP
- this printf did not work on many kernels */
+ * this printf did not work on many kernels */
advice.advised_hashsize = 0;
advice.advised_hashstep = 0;
advice.advised_hashlevel = 0;
- if(ioctl(fd, PIO_UNIMAPCLR, &advice)) {
-#ifdef ENOIOCTLCMD
- if (errno == ENOIOCTLCMD) {
- fprintf(stderr, "It seems this kernel is older than 1.1.92\n");
- fprintf(stderr, "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);
+#undef psf2
+}
+
+static void do_load(int fd, unsigned char *buffer, size_t len)
+{
+ int height;
+ int width = 8;
+ int charsize;
+ int fontsize = 256;
+ int has_table = 0;
+ unsigned char *font = buffer;
+ unsigned char *table;
+
+ if (len >= sizeof(struct psf1_header) && PSF1_MAGIC_OK(psf1h(buffer))) {
+ if (psf1h(buffer)->mode > PSF1_MAXMODE)
+ bb_error_msg_and_die("unsupported psf file mode");
+ if (psf1h(buffer)->mode & PSF1_MODE512)
+ fontsize = 512;
+ if (psf1h(buffer)->mode & PSF1_MODEHASTAB)
+ has_table = 1;
+ height = charsize = psf1h(buffer)->charsize;
+ font += sizeof(struct psf1_header);
+ } else
+#if ENABLE_FEATURE_LOADFONT_PSF2
+ if (len >= sizeof(struct psf2_header) && PSF2_MAGIC_OK(psf2h(buffer))) {
+ if (psf2h(buffer)->version > PSF2_MAXVERSION)
+ bb_error_msg_and_die("unsupported psf file version");
+ fontsize = psf2h(buffer)->length;
+ if (psf2h(buffer)->flags & PSF2_HAS_UNICODE_TABLE)
+ has_table = 2;
+ charsize = psf2h(buffer)->charsize;
+ height = psf2h(buffer)->height;
+ width = psf2h(buffer)->width;
+ font += psf2h(buffer)->headersize;
+ } else
+#endif
+#if ENABLE_FEATURE_LOADFONT_RAW
+ if (len == 9780) { /* file with three code pages? */
+ charsize = height = 16;
+ font += 40;
+ } else if ((len & 0377) == 0) { /* bare font */
+ charsize = height = len / 256;
+ } else
#endif
- perror("PIO_UNIMAP");
- exit(1);
+ {
+ bb_error_msg_and_die("input file: bad length or unsupported font type");
}
+
+#if !defined(PIO_FONTX) || defined(__sparc__)
+ if (fontsize != 256)
+ bb_error_msg_and_die("only fontsize 256 supported");
+#endif
+
+ table = font + fontsize * charsize;
+ buffer += len;
+
+ if (table > buffer || (!has_table && table != buffer))
+ bb_error_msg_and_die("input file: bad length");
+
+ do_loadfont(fd, font, height, width, charsize, fontsize);
+
+ if (has_table)
+ do_loadtable(fd, table, buffer - table, fontsize, has_table - 1);
}
-static void
-loadnewfont(int fd) {
- int unit;
- char inbuf[32768]; /* primitive */
- int inputlth, offset;
+
+#if ENABLE_LOADFONT
+int loadfont_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int loadfont_main(int argc UNUSED_PARAM, char **argv)
+{
+ size_t len;
+ unsigned char *buffer;
+
+ // 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
+ buffer = xmalloc_read(STDIN_FILENO, &len);
+ // xmalloc_open_zipped_read_close(filename, &len);
+ if (!buffer)
+ bb_perror_msg_and_die("error reading input font");
+ do_load(get_console_fd_or_die(), buffer, len);
- /* test for psf first */
- {
- struct psf_header psfhdr;
- int fontsize;
- int hastable;
- int 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) {
- fprintf(stderr, "Unsupported psf file mode\n");
- exit(1);
- }
- fontsize = ((psfhdr.mode & PSF_MODE512) ? 512 : 256);
-#if !defined( PIO_FONTX ) || defined( sparc )
- if (fontsize != 256) {
- fprintf(stderr, "Only fontsize 256 supported\n");
- exit(1);
- }
+ 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
- hastable = (psfhdr.mode & PSF_MODEHASTAB);
- unit = psfhdr.charsize;
- head0 = sizeof(struct psf_header);
- head = head0 + fontsize*unit;
- if (head > inputlth || (!hastable && head != inputlth)) {
- fprintf(stderr, "Input file: bad length\n");
- exit(1);
- }
- do_loadfont(fd, inbuf + head0, unit, fontsize);
- if (hastable)
- do_loadtable(fd, inbuf + head, inputlth-head, fontsize);
- return;
+
+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;
+ unsigned char *buffer;
+ char *mapfilename;
+ const char *tty_name = CURRENT_TTY;
+
+ opt_complementary = "=1";
+ opts = getopt32(argv, "m:C:", &mapfilename, &tty_name);
+ argv += optind;
+
+ fd = xopen_nonblocking(tty_name);
+
+ 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");
+ }
}
- no_psf:
-
- /* file with three code pages? */
- if (inputlth == 9780) {
- offset = 40;
- unit = 16;
- } else {
- /* bare font */
- if (inputlth & 0377) {
- fprintf(stderr, "Bad input file size\n");
- exit(1);
- }
- offset = 0;
- unit = inputlth/256;
+ // load font
+ len = 32*1024; // can't be larger
+ buffer = xmalloc_open_zipped_read_close(*argv, &len);
+ if (!buffer)
+ bb_simple_perror_msg_and_die(*argv);
+ do_load(fd, buffer, 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;
+
+ 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 / platform / upstream / busybox.git / blobdiff