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-rw-r--r--loadfont.c209
1 files changed, 0 insertions, 209 deletions
diff --git a/loadfont.c b/loadfont.c
deleted file mode 100644
index d665001..0000000
--- a/loadfont.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * loadfont.c - Eugene Crosser & Andries Brouwer
- *
- * Version 0.96bb
- *
- * Loads the console font, and possibly the corresponding screen map(s).
- * (Adapted for busybox by Matej Vela.)
- */
-#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 <sys/kd.h>
-#include <endian.h>
-#include "busybox.h"
-
-static const int PSF_MAGIC1 = 0x36;
-static const int PSF_MAGIC2 = 0x04;
-
-static const int PSF_MODE512 = 0x01;
-static const int PSF_MODEHASTAB = 0x02;
-static const int PSF_MAXMODE = 0x03;
-static const int PSF_SEPARATOR = 0xFFFF;
-
-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 loadnewfont(int fd);
-
-extern int loadfont_main(int argc, char **argv)
-{
- int fd;
-
- if (argc != 1)
- show_usage();
-
- fd = open(CURRENT_VC, O_RDWR);
- if (fd < 0)
- perror_msg_and_die("Error opening " CURRENT_VC);
- loadnewfont(fd);
-
- return EXIT_SUCCESS;
-}
-
-static void do_loadfont(int fd, char *inbuf, int unit, int fontsize)
-{
- char buf[16384];
- int i;
-
- memset(buf, 0, sizeof(buf));
-
- if (unit < 1 || unit > 32)
- error_msg_and_die("Bad character size %d", unit);
-
- for (i = 0; i < fontsize; i++)
- memcpy(buf + (32 * i), inbuf + (unit * i), unit);
-
-#if defined( PIO_FONTX ) && !defined( __sparc__ )
- {
- struct consolefontdesc cfd;
-
- cfd.charcount = fontsize;
- cfd.charheight = unit;
- cfd.chardata = buf;
-
- if (ioctl(fd, PIO_FONTX, &cfd) == 0)
- return; /* success */
- perror_msg("PIO_FONTX ioctl error (trying PIO_FONT)");
- }
-#endif
- if (ioctl(fd, PIO_FONT, buf))
- perror_msg_and_die("PIO_FONT ioctl error");
-}
-
-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;
-
- maxct = tailsz; /* more than enough */
- up = (struct unipair *) xmalloc(maxct * sizeof(struct unipair));
-
- 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++;
- }
- }
-
- /* Note: after PIO_UNIMAPCLR and before PIO_UNIMAP
- 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) {
- error_msg("It seems this kernel is older than 1.1.92");
- error_msg_and_die("No Unicode mapping table loaded.");
- } else
-#endif
- perror_msg_and_die("PIO_UNIMAPCLR");
- }
- ud.entry_ct = ct;
- ud.entries = up;
- if (ioctl(fd, PIO_UNIMAP, &ud)) {
-#if 0
- if (errno == ENOMEM) {
- /* change advice parameters */
- }
-#endif
- perror_msg_and_die("PIO_UNIMAP");
- }
-}
-
-static void loadnewfont(int fd)
-{
- int unit;
- char inbuf[32768]; /* primitive */
- unsigned int inputlth, offset;
-
- /*
- * 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_msg_and_die("Error reading input font");
- /* 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_msg_and_die("Font too large");
-
- /* test for psf first */
- {
- struct psf_header psfhdr;
- int fontsize;
- int hastable;
- unsigned 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)
- error_msg_and_die("Unsupported psf file mode");
- fontsize = ((psfhdr.mode & PSF_MODE512) ? 512 : 256);
-#if !defined( PIO_FONTX ) || defined( __sparc__ )
- if (fontsize != 256)
- error_msg_and_die("Only fontsize 256 supported");
-#endif
- hastable = (psfhdr.mode & PSF_MODEHASTAB);
- unit = psfhdr.charsize;
- head0 = sizeof(struct psf_header);
-
- head = head0 + fontsize * unit;
- if (head > inputlth || (!hastable && head != inputlth))
- 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)
- error_msg_and_die("Bad input file size");
- offset = 0;
- unit = inputlth / 256;
- }
- do_loadfont(fd, inbuf + offset, unit, 256);
-}