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setfont: new applet by Vladimir
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eb084779d7
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c8d02aa959
@ -95,6 +95,12 @@ config FEATURE_SETCONSOLE_LONG_OPTIONS
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help
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Support long options for the setconsole applet.
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config SETFONT
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bool "setfont"
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default n
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help
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Allows to load console screen map. Useful for i18n.
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config SETKEYCODES
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bool "setkeycodes"
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default n
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@ -16,5 +16,6 @@ lib-$(CONFIG_LOADKMAP) += loadkmap.o
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lib-$(CONFIG_OPENVT) += openvt.o
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lib-$(CONFIG_RESET) += reset.o
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lib-$(CONFIG_RESIZE) += resize.o
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lib-$(CONFIG_SETFONT) += loadfont.o
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lib-$(CONFIG_SETKEYCODES) += setkeycodes.o
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lib-$(CONFIG_SETLOGCONS) += setlogcons.o
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@ -26,7 +26,7 @@ struct psf_header {
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unsigned char charsize; /* Character size */
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};
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#define PSF_MAGIC_OK(x) ((x).magic1 == PSF_MAGIC1 && (x).magic2 == PSF_MAGIC2)
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#define PSF_MAGIC_OK(x) ((x)->magic1 == PSF_MAGIC1 && (x)->magic2 == PSF_MAGIC2)
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static void do_loadfont(int fd, unsigned char *inbuf, int unit, int fontsize)
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{
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@ -37,7 +37,6 @@ static void do_loadfont(int fd, unsigned char *inbuf, int unit, int fontsize)
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bb_error_msg_and_die("bad character size %d", unit);
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buf = xzalloc(16 * 1024);
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/*memset(buf, 0, 16 * 1024);*/
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for (i = 0; i < fontsize; i++)
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memcpy(buf + (32 * i), inbuf + (unit * i), unit);
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@ -58,8 +57,7 @@ static void do_loadfont(int fd, unsigned char *inbuf, int unit, int fontsize)
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free(buf);
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}
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static void
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do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize)
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static void do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize)
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{
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struct unimapinit advice;
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struct unimapdesc ud;
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@ -68,7 +66,7 @@ do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize)
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int glyph;
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uint16_t unicode;
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maxct = tailsz; /* more than enough */
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maxct = tailsz; /* more than enough */
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up = xmalloc(maxct * sizeof(struct unipair));
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for (glyph = 0; glyph < fontsize; glyph++) {
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@ -96,86 +94,104 @@ do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize)
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xioctl(fd, PIO_UNIMAP, &ud);
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}
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static void loadnewfont(int fd)
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static void do_load(int fd, struct psf_header *psfhdr, size_t len)
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{
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enum { INBUF_SIZE = 32*1024 + 1 };
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int unit;
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unsigned inputlth, offset;
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/* Was on stack, but 32k is a bit too much: */
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unsigned char *inbuf = xmalloc(INBUF_SIZE);
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int fontsize;
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int hastable;
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unsigned head0, head = head;
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/* test for psf first */
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if (len >= sizeof(struct psf_header) && PSF_MAGIC_OK(psfhdr)) {
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if (psfhdr->mode > PSF_MAXMODE)
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bb_error_msg_and_die("unsupported psf file mode");
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fontsize = ((psfhdr->mode & PSF_MODE512) ? 512 : 256);
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#if !defined(PIO_FONTX) || defined(__sparc__)
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if (fontsize != 256)
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bb_error_msg_and_die("only fontsize 256 supported");
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#endif
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hastable = (psfhdr->mode & PSF_MODEHASTAB);
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unit = psfhdr->charsize;
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head0 = sizeof(struct psf_header);
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head = head0 + fontsize * unit;
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if (head > len || (!hastable && head != len))
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bb_error_msg_and_die("input file: bad length");
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} else {
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/* file with three code pages? */
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if (len == 9780) {
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head0 = 40;
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unit = 16;
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} else {
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/* bare font */
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if (len & 0377)
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bb_error_msg_and_die("input file: bad length");
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head0 = 0;
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unit = len / 256;
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}
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fontsize = 256;
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hastable = 0;
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}
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do_loadfont(fd, (unsigned char *)psfhdr + head0, unit, fontsize);
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if (hastable)
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do_loadtable(fd, (unsigned char *)psfhdr + head, len - head, fontsize);
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}
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#if ENABLE_LOADFONT
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int loadfont_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int loadfont_main(int argc UNUSED_PARAM, char **argv)
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{
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size_t len;
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struct psf_header *psfhdr;
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// no arguments allowed!
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opt_complementary = "=0";
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getopt32(argv, "");
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/*
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* We used to look at the length of the input file
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* with stat(); now that we accept compressed files,
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* just read the entire file.
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*/
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inputlth = full_read(STDIN_FILENO, inbuf, INBUF_SIZE);
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if (inputlth < 0)
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len = 32*1024; // can't be larger
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psfhdr = (struct psf_header *) xmalloc_read(STDIN_FILENO, &len);
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// xmalloc_open_zipped_read_close(filename, &len);
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if (!psfhdr)
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bb_perror_msg_and_die("error reading input font");
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if (inputlth >= INBUF_SIZE)
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bb_error_msg_and_die("font too large");
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/* test for psf first */
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{
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struct psf_header psfhdr;
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int fontsize;
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int hastable;
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unsigned head0, head;
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if (inputlth < sizeof(struct psf_header))
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goto no_psf;
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psfhdr = *(struct psf_header *) &inbuf[0];
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if (!PSF_MAGIC_OK(psfhdr))
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goto no_psf;
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if (psfhdr.mode > PSF_MAXMODE)
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bb_error_msg_and_die("unsupported psf file mode");
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fontsize = ((psfhdr.mode & PSF_MODE512) ? 512 : 256);
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#if !defined(PIO_FONTX) || defined(__sparc__)
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if (fontsize != 256)
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bb_error_msg_and_die("only fontsize 256 supported");
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#endif
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hastable = (psfhdr.mode & PSF_MODEHASTAB);
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unit = psfhdr.charsize;
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head0 = sizeof(struct psf_header);
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head = head0 + fontsize * unit;
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if (head > inputlth || (!hastable && head != inputlth))
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bb_error_msg_and_die("input file: bad length");
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do_loadfont(fd, inbuf + head0, unit, fontsize);
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if (hastable)
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do_loadtable(fd, inbuf + head, inputlth - head, fontsize);
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return;
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}
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no_psf:
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/* file with three code pages? */
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if (inputlth == 9780) {
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offset = 40;
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unit = 16;
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} else {
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/* bare font */
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if (inputlth & 0377)
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bb_error_msg_and_die("bad input file size");
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offset = 0;
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unit = inputlth / 256;
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}
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do_loadfont(fd, inbuf + offset, unit, 256);
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}
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int loadfont_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int loadfont_main(int argc, char **argv UNUSED_PARAM)
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{
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int fd;
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if (argc != 1)
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bb_show_usage();
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fd = get_console_fd_or_die();
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loadnewfont(fd);
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do_load(get_console_fd_or_die(), psfhdr, len);
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return EXIT_SUCCESS;
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}
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#endif
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#if ENABLE_SETFONT
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int setfont_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int setfont_main(int argc UNUSED_PARAM, char **argv)
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{
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size_t len;
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struct psf_header *psfhdr;
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char *mapfilename;
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int fd;
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opt_complementary = "=1";
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getopt32(argv, "m:", &mapfilename);
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argv += optind;
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// load font
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len = 32*1024; // can't be larger
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psfhdr = (struct psf_header *) xmalloc_open_zipped_read_close(*argv, &len);
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fd = get_console_fd_or_die();
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do_load(fd, psfhdr, len);
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// load the screen map, if any
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if (option_mask32 & 1) { // -m
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void *map = xmalloc_open_zipped_read_close(mapfilename, &len);
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if (len == E_TABSZ || len == 2*E_TABSZ) {
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xioctl(fd, (len == 2*E_TABSZ) ? PIO_UNISCRNMAP : PIO_SCRNMAP, map);
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}
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}
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return EXIT_SUCCESS;
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}
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#endif
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@ -220,7 +220,7 @@ USE_SETARCH(APPLET_ODDNAME(linux64, setarch, _BB_DIR_BIN, _BB_SUID_NEVER, linux6
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USE_FEATURE_INITRD(APPLET_ODDNAME(linuxrc, init, _BB_DIR_ROOT, _BB_SUID_NEVER, linuxrc))
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USE_LN(APPLET_NOEXEC(ln, ln, _BB_DIR_BIN, _BB_SUID_NEVER, ln))
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USE_LOAD_POLICY(APPLET(load_policy, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
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USE_LOADFONT(APPLET(loadfont, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
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USE_LOADFONT(APPLET(loadfont, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
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USE_LOADKMAP(APPLET(loadkmap, _BB_DIR_SBIN, _BB_SUID_NEVER))
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USE_LOGGER(APPLET(logger, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
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USE_LOGIN(APPLET(login, _BB_DIR_BIN, _BB_SUID_ALWAYS))
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@ -319,6 +319,7 @@ USE_SETARCH(APPLET(setarch, _BB_DIR_BIN, _BB_SUID_NEVER))
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USE_SETCONSOLE(APPLET(setconsole, _BB_DIR_SBIN, _BB_SUID_NEVER))
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USE_SETENFORCE(APPLET(setenforce, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
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USE_SETFILES(APPLET(setfiles, _BB_DIR_SBIN, _BB_SUID_NEVER))
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USE_SETFONT(APPLET(setfont, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
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USE_SETKEYCODES(APPLET(setkeycodes, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
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USE_SETLOGCONS(APPLET(setlogcons, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
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USE_SETSEBOOL(APPLET(setsebool, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
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@ -3501,6 +3501,15 @@
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"\n -vv Show changes in file labels, if type, role, or user are changing" \
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"\n -W Display warnings about entries that had no matching files" \
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#define setfont_trivial_usage \
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"[-m mapfile] font"
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#define setfont_full_usage "\n\n" \
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"Load a console font\n" \
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"\nOptions:" \
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"\n -m mapfile Load console screen map from mapfile"
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#define setfont_example_usage \
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"$ setfont -m koi8-r /etc/i18n/fontname\n"
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#define setkeycodes_trivial_usage \
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"SCANCODE KEYCODE..."
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#define setkeycodes_full_usage "\n\n" \
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