(2006-08-06) rescue-bootcd

extra/syslinux-3.09/com32/libutil/Makefile

@@ -0,0 +1,112 @@
+#ident "$Id: Makefile,v 1.8 2005/01/21 00:49:46 hpa Exp $"
+## -----------------------------------------------------------------------
+##   
+##   Copyright 2001-2004 H. Peter Anvin - All Rights Reserved
+##
+##   Permission is hereby granted, free of charge, to any person
+##   obtaining a copy of this software and associated documentation
+##   files (the "Software"), to deal in the Software without
+##   restriction, including without limitation the rights to use,
+##   copy, modify, merge, publish, distribute, sublicense, and/or
+##   sell copies of the Software, and to permit persons to whom
+##   the Software is furnished to do so, subject to the following
+##   conditions:
+##   
+##   The above copyright notice and this permission notice shall
+##   be included in all copies or substantial portions of the Software.
+##   
+##   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+##   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+##   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+##   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+##   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+##   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+##   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+##   OTHER DEALINGS IN THE SOFTWARE.
+##
+## -----------------------------------------------------------------------
+
+##
+## Utility companion library for the COM32 library
+##
+
+gcc_ok   = $(shell if gcc $(1) -c -x c /dev/null -o /dev/null 2>/dev/null; \
+	           then echo $(1); else echo $(2); fi)
+
+M32     := $(call gcc_ok,-m32,)
+
+CC         = gcc
+LD         = ld -m elf_i386
+AR	   = ar
+NASM	   = nasm
+RANLIB	   = ranlib
+CFLAGS     = $(M32) -mregparm=3 -DREGPARM=3 -D__COM32__ -W -Wall -march=i386 -Os -fomit-frame-pointer -I./include -I../include
+SFLAGS     = $(M32) -D__COM32__ -march=i386
+LDFLAGS    = -T ../lib/com32.ld
+LNXCFLAGS  = -I./include -W -Wall -O -g
+LNXSFLAGS  = -g
+LNXLDFLAGS = -g
+OBJCOPY    = objcopy
+LIBOBJS	   = ansiline.o ansiraw.o get_key.o idle.o sha1hash.o unbase64.o
+LNXLIBOBJS = $(patsubst %.o,%.lo,$(LIBOBJS))
+
+.SUFFIXES: .lss .c .lo .o .elf .c32 .lnx
+
+BINDIR   = /usr/bin
+LIBDIR   = /usr/lib
+AUXDIR   = $(LIBDIR)/syslinux
+INCDIR   = /usr/include
+COM32DIR = $(AUXDIR)/com32
+
+all: libutil_com.a libutil_lnx.a
+
+libutil_com.a: $(LIBOBJS)
+	rm -f $@
+	$(AR) cq $@ $(LIBOBJS)
+	$(RANLIB) $@
+
+libutil_lnx.a: $(LNXLIBOBJS)
+	rm -f $@
+	$(AR) cq $@ $(LNXLIBOBJS)
+	$(RANLIB) $@
+
+.PRECIOUS: %.o
+%.o: %.S
+	$(CC) $(SFLAGS) -c -o $@ $<
+
+.PRECIOUS: %.o
+%.o: %.c
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+.PRECIOUS: %.elf
+%.elf: %.o $(LIB)
+	$(LD) $(LDFLAGS) -o $@ $^ $(LIBGCC)
+
+.PRECIOUS: %.lo
+%.lo: %.S
+	$(CC) $(LNXSFLAGS) -c -o $@ $<
+
+.PRECIOUS: %.lo
+%.lo: %.c
+	$(CC) $(LNXCFLAGS) -c -o $@ $<
+
+.PRECIOUS: %.lnx
+%.lnx: %.lo
+	$(CC) $(LNXCFLAGS) -o $@ $^
+
+%.c32: %.elf
+	$(OBJCOPY) -O binary $< $@
+
+tidy:
+	rm -f *.o *.lo *.lst *.elf
+
+clean: tidy
+	rm -f *.lss *.a *.c32 *.lnx *.com
+
+spotless: clean
+	rm -f *~ \#*
+
+install: all
+	mkdir -m 755 -p $(INSTALLROOT)$(COM32DIR)
+	install -m 644 libutil_com.a libutil_lnx.a $(INSTALLROOT)$(COM32DIR)
+

extra/syslinux-3.09/com32/libutil/ansiline.c

@@ -0,0 +1,92 @@
+#ident "$Id: ansiline.c,v 1.1 2004/12/01 01:30:07 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * ansiline.c
+ *
+ * Configures the console for ANSI output in line mode; versions
+ * for COM32 and Linux support.
+ */
+
+#ifdef __COM32__
+
+#include <stdio.h>
+#include <unistd.h>
+#include <console.h>
+
+static void __attribute__((destructor)) console_cleanup(void)
+{
+  /* For the serial console, be nice and clean up */
+  fputs("\033[0m\033[20l", stdout);
+}
+
+void console_ansi_std(void)
+{
+  openconsole(&dev_stdcon_r, &dev_ansiserial_w);
+  fputs("\033[0m\033[20h", stdout);
+}
+
+#else 
+
+#include <stdio.h>
+#include <termios.h>
+
+static struct termios original_termios_settings;
+
+static void __attribute__((constructor)) console_init(void)
+{
+  tcgetattr(0, &original_termios_settings);
+}
+
+static void __attribute__((destructor)) console_cleanup(void)
+{
+  fputs("\033[0m\033[20l", stdout);
+  tcsetattr(0, TCSANOW, &original_termios_settings);
+}
+  
+
+void console_ansi_std(void)
+{
+  struct termios tio;
+
+  /* Disable stdio buffering */
+  setbuf(stdin,  NULL);
+  setbuf(stdout, NULL);
+  setbuf(stderr, NULL);
+
+  /* Set the termios flag so we behave the same as libcom32 */
+  tcgetattr(0, &tio);
+  tio.c_iflag &= ~ICRNL;
+  tio.c_iflag |= IGNCR;
+  tio.c_cflag |= ICANON|ECHO;
+  tcsetattr(0, TCSANOW, &tio);
+  fputs("\033[0m\033[20h", stdout);
+}
+
+#endif
+

extra/syslinux-3.09/com32/libutil/ansiraw.c

@@ -0,0 +1,94 @@
+#ident "$Id: ansiraw.c,v 1.5 2004/12/21 01:37:43 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * ansiraw.c
+ *
+ * Configures the console for ANSI output in raw mode; versions
+ * for COM32 and Linux support.
+ */
+
+#ifdef __COM32__
+
+#include <stdio.h>
+#include <unistd.h>
+#include <console.h>
+
+static void __attribute__((destructor)) console_cleanup(void)
+{
+  /* For the serial console, be nice and clean up */
+  fputs("\033[0m\033[20l", stdout);
+}
+
+void console_ansi_raw(void)
+{
+  openconsole(&dev_rawcon_r, &dev_ansiserial_w);
+  fputs("\033[0m\033[20h", stdout);
+}
+
+#else 
+
+#include <stdio.h>
+#include <termios.h>
+
+static struct termios original_termios_settings;
+
+static void __attribute__((constructor)) console_init(void)
+{
+  tcgetattr(0, &original_termios_settings);
+}
+
+static void __attribute__((destructor)) console_cleanup(void)
+{
+  fputs("\033[0m\033[20l", stdout);
+  tcsetattr(0, TCSANOW, &original_termios_settings);
+}
+  
+
+void console_ansi_raw(void)
+{
+  struct termios tio;
+
+  /* Disable stdio buffering */
+  setbuf(stdin,  NULL);
+  setbuf(stdout, NULL);
+  setbuf(stderr, NULL);
+
+  /* Set the termios flag so we behave the same as libcom32 */
+  tcgetattr(0, &tio);
+  tio.c_iflag &= ~ICRNL;
+  tio.c_iflag |= IGNCR;
+  tio.c_lflag &= ~(ISIG|ICANON|ECHO);
+  tio.c_cc[VMIN]  = 0;
+  tio.c_cc[VTIME] = 1;		/* Don't 100% busy-wait in Linux */
+  tcsetattr(0, TCSAFLUSH, &tio);
+  fputs("\033[0m\033[20h", stdout);
+}
+
+#endif
+

extra/syslinux-3.09/com32/libutil/get_key.c

@@ -0,0 +1,172 @@
+#ident "$Id: get_key.c,v 1.7 2005/01/21 01:35:33 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * get_key.c
+ *
+ * Get a single key, and try to pick apart function key codes.
+ * This doesn't decode anywhere close to all possiblities, but
+ * hopefully is enough to be useful.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/times.h>
+#include <getkey.h>
+#include <libutil.h>
+
+struct keycode {
+  int code;
+  int seqlen;
+  const unsigned char *seq;
+};
+
+#define MAXLEN 8
+#define CODE(x,y) { x, (sizeof y)-1, y }
+
+static const struct keycode keycodes[] = {
+  /* First, the BIOS combined codes */
+  CODE(KEY_F1,   "\0\x3B"),
+  CODE(KEY_F2,   "\0\x3C"),
+  CODE(KEY_F3,   "\0\x3D"),
+  CODE(KEY_F4,   "\0\x3E"),
+  CODE(KEY_F5,   "\0\x3F"),
+  CODE(KEY_F6,   "\0\x40"),
+  CODE(KEY_F7,   "\0\x41"),
+  CODE(KEY_F8,   "\0\x42"),
+  CODE(KEY_F9,   "\0\x43"),
+  CODE(KEY_F10,  "\0\x44"),
+  CODE(KEY_F11,  "\0\x85"),
+  CODE(KEY_F12,  "\0\x86"),
+
+  CODE(KEY_UP,   "\0\x48"),
+  CODE(KEY_DOWN, "\0\x50"),
+  CODE(KEY_LEFT, "\0\x4B"),
+  CODE(KEY_RIGHT,"\0\x4D"),
+  CODE(KEY_PGUP, "\0\x49"),
+  CODE(KEY_PGDN, "\0\x51"),
+  CODE(KEY_HOME, "\0\x47"),
+  CODE(KEY_END,  "\0\x4F"),
+  CODE(KEY_INSERT, "\0\x52"),
+  CODE(KEY_DELETE, "\0\x53"),
+
+  /* Now, VT/xterm/Linux codes */
+  CODE(KEY_F1,   "\033[[A"),
+  CODE(KEY_F1,   "\033OP"),
+  CODE(KEY_F2,   "\033[[B"),
+  CODE(KEY_F2,   "\033OQ"),
+  CODE(KEY_F3,   "\033[[C"),
+  CODE(KEY_F3,   "\033OR"),
+  CODE(KEY_F4,   "\033[[D"),
+  CODE(KEY_F4,   "\033OS"),
+  CODE(KEY_F5,   "\033[[E"),
+  CODE(KEY_F5,   "\033[15~"),
+  CODE(KEY_F6,   "\033[17~"),
+  CODE(KEY_F7,   "\033[18~"),
+  CODE(KEY_F8,   "\033[19~"),
+  CODE(KEY_F9,   "\033[20~"),
+  CODE(KEY_F10,  "\033[21~"),
+  CODE(KEY_F11,  "\033[23~"),
+  CODE(KEY_F12,  "\033[24~"),
+
+  CODE(KEY_UP,   "\033[A"),
+  CODE(KEY_DOWN, "\033[B"),
+  CODE(KEY_LEFT, "\033[D"),
+  CODE(KEY_RIGHT,"\033[C"),
+  CODE(KEY_PGUP, "\033[5~"),
+  CODE(KEY_PGUP, "\033[V"),
+  CODE(KEY_PGDN, "\033[6~"),
+  CODE(KEY_PGDN, "\033[U"),
+  CODE(KEY_HOME, "\033[1~"),
+  CODE(KEY_HOME, "\033[H"),
+  CODE(KEY_END,  "\033[4~"),
+  CODE(KEY_END,  "\033[F"),
+  CODE(KEY_END,  "\033OF"),
+  CODE(KEY_INSERT, "\033[2~"),
+  CODE(KEY_INSERT, "\033[@"),
+  CODE(KEY_DELETE, "\033[3~"),
+};
+#define NCODES ((int)(sizeof keycodes/sizeof(struct keycode)))
+
+int get_key(FILE *f, clock_t timeout)
+{
+  unsigned char buffer[MAXLEN];
+  int nc, i, rv;
+  const struct keycode *kc;
+  int another;
+  unsigned char ch;
+  clock_t start;
+
+  /* We typically start in the middle of a clock tick */
+  if ( timeout )
+    timeout++;
+
+  nc = 0;
+  start = times(NULL);
+  do {
+    rv = read(fileno(f), &ch, 1);
+    if ( rv == 0 || (rv == -1 && errno == EAGAIN) ) {
+      clock_t lateness = times(NULL)-start;
+      if ( nc && lateness > 1+CLK_TCK/20 )
+	return buffer[0];	/* timeout in sequence */
+      else if ( !nc && timeout && lateness > timeout )
+	return KEY_NONE;	/* timeout before sequence */
+
+      do_idle();
+
+      another = 1;
+      continue;
+    }
+
+    start = times(NULL);
+
+    buffer[nc++] = ch;
+
+    another = 0;
+    for ( i = 0, kc = keycodes ; i < NCODES ; i++, kc++ ) {
+      if ( nc == kc->seqlen && !memcmp(buffer, kc->seq, nc) )
+	return kc->code;
+      else if ( nc < kc->seqlen && !memcmp(buffer, kc->seq, nc) ) {
+	another = 1;
+	break;
+      }
+    }
+  } while ( another );
+
+  /* We got an unrecognized sequence; return the first character */
+  /* We really should remember this and return subsequent characters later */
+  return buffer[0];
+}
+	
+
+    
+
+    

extra/syslinux-3.09/com32/libutil/idle.c

@@ -0,0 +1,53 @@
+#ident "$Id: idle.c,v 1.1 2005/01/20 18:41:12 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2005 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * idle.c
+ *
+ * What to do in a busy loop...
+ */
+
+#ifdef __COM32__
+
+#include <syslinux.h>
+
+void do_idle(void)
+{
+  syslinux_idle();
+}
+
+#else
+
+#include <sched.h>
+
+void do_idle(void)
+{
+  sched_yield();		/* As good as we can get... */
+}
+
+#endif

extra/syslinux-3.09/com32/libutil/include/base64.h

@@ -0,0 +1,42 @@
+#ident "$Id: base64.h,v 1.1 2005/01/21 00:49:46 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2005 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * base64.h
+ *
+ * Simple routines for handing base64 text
+ */
+
+#ifndef LIBUTIL_BASE64_H
+#define LIBUTIL_BASE64_H
+
+#include <stddef.h>
+
+size_t unbase64(unsigned char *, size_t, const char *);
+
+#endif

extra/syslinux-3.09/com32/libutil/include/consoles.h

@@ -0,0 +1,42 @@
+#ident "$Id: consoles.h,v 1.2 2004/12/01 02:44:34 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * consoles.h
+ *
+ * Utility functions for common console configurations
+ */
+
+#ifndef LIBUTIL_CONSOLES_H
+#define LIBUTIL_CONSOLES_H
+
+void console_ansi_std(void);
+void console_ansi_raw(void);
+
+#endif /* LIBUTIL_CONSOLES_H */
+

extra/syslinux-3.09/com32/libutil/include/getkey.h

@@ -0,0 +1,76 @@
+#ident "$Id: getkey.h,v 1.5 2005/01/21 01:35:33 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * getkey.h
+ *
+ * Function to get a key symbol and parse it
+ */
+
+#ifndef LIBUTIL_GETKEY_H
+#define LIBUTIL_GETKEY_H
+
+#include <stdio.h>
+#include <sys/times.h>
+
+#define KEY_NONE	(-1)
+
+#define KEY_CTRL(x)	((x) & 0x001f)
+#define KEY_BACKSPACE	0x0008
+#define KEY_TAB		0x0009
+#define KEY_ENTER	0x000d
+#define KEY_ESC		0x001b
+#define KEY_DEL		0x007f
+
+#define KEY_F1		0x0100
+#define KEY_F2		0x0101
+#define KEY_F3		0x0102
+#define KEY_F4		0x0103
+#define KEY_F5		0x0104
+#define KEY_F6		0x0105
+#define KEY_F7		0x0106
+#define KEY_F8		0x0107
+#define KEY_F9		0x0108
+#define KEY_F10		0x0109
+#define KEY_F11		0x010A
+#define KEY_F12		0x010B
+
+#define KEY_UP		0x0120
+#define KEY_DOWN	0x0121
+#define KEY_LEFT	0x0122
+#define KEY_RIGHT	0x0123
+#define KEY_PGUP	0x0124
+#define KEY_PGDN	0x0125
+#define KEY_HOME	0x0126
+#define KEY_END		0x0127
+#define KEY_INSERT	0x0128
+#define KEY_DELETE	0x0129
+
+int get_key(FILE *, clock_t);
+
+#endif /* LIBUTIL_GETKEY_H */

extra/syslinux-3.09/com32/libutil/include/libutil.h

@@ -0,0 +1,40 @@
+#ident "$Id: libutil.h,v 1.1 2005/01/20 18:41:12 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2005 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * libutil.h
+ *
+ * Misc libutil functions
+ */
+
+#ifndef LIBUTIL_LIBUTIL_H
+#define LIBUTIL_LIBUTIL_H
+
+void do_idle(void);
+
+#endif

extra/syslinux-3.09/com32/libutil/include/minmax.h

@@ -0,0 +1,44 @@
+#ident "$Id: minmax.h,v 1.1 2004/12/20 23:19:36 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+#ifndef _MINMAX_H
+#define _MINMAX_H
+
+/*
+ * minmax.h: Type-independent safe min/max macros
+ */
+
+#define min(x,y) ({ __typeof(x) xx = (x); \
+                    __typeof(y) yy = (y); \
+                    xx < yy ? xx : yy; })
+#define max(x,y) ({ __typeof(x) xx = (x); \
+                    __typeof(y) yy = (y); \
+                    xx > yy ? xx : yy; })
+
+#endif /* _MINMAX_H */
+

extra/syslinux-3.09/com32/libutil/include/sha1.h

@@ -0,0 +1,18 @@
+#ifndef LIBUTIL_SHA1_H
+#define LIBUTIL_SHA1_H
+
+#include <stdint.h>
+
+typedef struct {
+    uint32_t state[5];
+    uint32_t count[2];
+    unsigned char buffer[64];
+} SHA1_CTX;
+
+void SHA1Transform(uint32_t state[5], const unsigned char buffer[64]);
+void SHA1Init(SHA1_CTX* context);
+void SHA1Update(SHA1_CTX* context, const unsigned char* data, uint32_t len);  /*
+JHB */
+void SHA1Final(unsigned char digest[20], SHA1_CTX* context);
+
+#endif /* LIBUTIL_SHA1_H */

extra/syslinux-3.09/com32/libutil/sha1hash.c

@@ -0,0 +1,308 @@
+/*
+SHA-1 in C
+By Steve Reid <sreid@sea-to-sky.net>
+100% Public Domain
+
+-----------------
+Modified 7/98 
+By James H. Brown <jbrown@burgoyne.com>
+Still 100% Public Domain
+
+Corrected a problem which generated improper hash values on 16 bit machines
+Routine SHA1Update changed from
+	void SHA1Update(SHA1_CTX* context, unsigned char* data, unsigned int
+len)
+to
+	void SHA1Update(SHA1_CTX* context, unsigned char* data, unsigned
+long len)
+
+The 'len' parameter was declared an int which works fine on 32 bit machines.
+However, on 16 bit machines an int is too small for the shifts being done
+against
+it.  This caused the hash function to generate incorrect values if len was
+greater than 8191 (8K - 1) due to the 'len << 3' on line 3 of SHA1Update().
+
+Since the file IO in main() reads 16K at a time, any file 8K or larger would
+be guaranteed to generate the wrong hash (e.g. Test Vector #3, a million
+"a"s).
+
+I also changed the declaration of variables i & j in SHA1Update to 
+unsigned long from unsigned int for the same reason.
+
+These changes should make no difference to any 32 bit implementations since
+an
+int and a long are the same size in those environments.
+
+--
+I also corrected a few compiler warnings generated by Borland C.
+1. Added #include <process.h> for exit() prototype
+2. Removed unused variable 'j' in SHA1Final
+3. Changed exit(0) to return(0) at end of main.
+
+ALL changes I made can be located by searching for comments containing 'JHB'
+-----------------
+Modified 8/98
+By Steve Reid <sreid@sea-to-sky.net>
+Still 100% public domain
+
+1- Removed #include <process.h> and used return() instead of exit()
+2- Fixed overwriting of finalcount in SHA1Final() (discovered by Chris Hall)
+3- Changed email address from steve@edmweb.com to sreid@sea-to-sky.net
+
+-----------------
+Modified 4/01
+By Saul Kravitz <Saul.Kravitz@celera.com>
+Still 100% PD
+Modified to run on Compaq Alpha hardware.  
+
+-----------------
+Modified 2/03
+By H. Peter Anvin <hpa@zytor.com>
+Still 100% PD
+Modified to run on any hardware with <inttypes.h> and <netinet/in.h>
+Changed the driver program
+
+*/
+
+/*
+Test Vectors (from FIPS PUB 180-1)
+"abc"
+  A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
+"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
+  84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
+A million repetitions of "a"
+  34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
+*/
+
+/* #define SHA1HANDSOFF  */
+
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include <netinet/in.h>		/* For htonl/ntohl/htons/ntohs */
+
+#include "sha1.h"
+
+#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
+
+/* blk0() and blk() perform the initial expand. */
+/* I got the idea of expanding during the round function from SSLeay */
+#define blk0(i) (block->l[i] = ntohl(block->l[i]))
+#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \
+    ^block->l[(i+2)&15]^block->l[i&15],1))
+
+/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
+#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
+#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
+#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
+#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
+#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);
+
+
+#ifdef VERBOSE  /* SAK */
+void SHAPrintContext(SHA1_CTX *context, char *msg){
+  printf("%s (%d,%d) %x %x %x %x %x\n",
+	 msg,
+	 context->count[0], context->count[1], 
+	 context->state[0],
+	 context->state[1],
+	 context->state[2],
+	 context->state[3],
+	 context->state[4]);
+}
+#endif
+
+/* Hash a single 512-bit block. This is the core of the algorithm. */
+
+void SHA1Transform(uint32_t state[5], const unsigned char buffer[64])
+{
+uint32_t a, b, c, d, e;
+typedef union {
+    unsigned char c[64];
+    uint32_t l[16];
+} CHAR64LONG16;
+CHAR64LONG16* block;
+#ifdef SHA1HANDSOFF
+static unsigned char workspace[64];
+    block = (CHAR64LONG16*)workspace;
+    memcpy(block, buffer, 64);
+#else
+    block = (CHAR64LONG16*)buffer;
+#endif
+    /* Copy context->state[] to working vars */
+    a = state[0];
+    b = state[1];
+    c = state[2];
+    d = state[3];
+    e = state[4];
+    /* 4 rounds of 20 operations each. Loop unrolled. */
+    R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
+    R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
+    R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
+    R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
+    R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
+    R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
+    R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
+    R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
+    R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
+    R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
+    R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
+    R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
+    R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
+    R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
+    R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
+    R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
+    R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
+    R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
+    R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
+    R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
+    /* Add the working vars back into context.state[] */
+    state[0] += a;
+    state[1] += b;
+    state[2] += c;
+    state[3] += d;
+    state[4] += e;
+    /* Wipe variables */
+    a = b = c = d = e = 0;
+}
+
+
+/* SHA1Init - Initialize new context */
+
+void SHA1Init(SHA1_CTX* context)
+{
+    /* SHA1 initialization constants */
+    context->state[0] = 0x67452301;
+    context->state[1] = 0xEFCDAB89;
+    context->state[2] = 0x98BADCFE;
+    context->state[3] = 0x10325476;
+    context->state[4] = 0xC3D2E1F0;
+    context->count[0] = context->count[1] = 0;
+}
+
+
+/* Run your data through this. */
+
+void SHA1Update(SHA1_CTX* context, const unsigned char* data, uint32_t len)	/*
+JHB */
+{
+uint32_t i, j;	/* JHB */
+
+#ifdef VERBOSE
+    SHAPrintContext(context, "before");
+#endif
+    j = (context->count[0] >> 3) & 63;
+    if ((context->count[0] += len << 3) < (len << 3)) context->count[1]++;
+    context->count[1] += (len >> 29);
+    if ((j + len) > 63) {
+        memcpy(&context->buffer[j], data, (i = 64-j));
+        SHA1Transform(context->state, context->buffer);
+        for ( ; i + 63 < len; i += 64) {
+            SHA1Transform(context->state, &data[i]);
+        }
+        j = 0;
+    }
+    else i = 0;
+    memcpy(&context->buffer[j], &data[i], len - i);
+#ifdef VERBOSE
+    SHAPrintContext(context, "after ");
+#endif
+}
+
+
+/* Add padding and return the message digest. */
+
+void SHA1Final(unsigned char digest[20], SHA1_CTX* context)
+{
+uint32_t i;	/* JHB */
+unsigned char finalcount[8];
+
+    for (i = 0; i < 8; i++) {
+        finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)]
+         >> ((3-(i & 3)) * 8) ) & 255);  /* Endian independent */
+    }
+    SHA1Update(context, (unsigned char *)"\200", 1);
+    while ((context->count[0] & 504) != 448) {
+        SHA1Update(context, (unsigned char *)"\0", 1);
+    }
+    SHA1Update(context, finalcount, 8);  /* Should cause a SHA1Transform()
+*/
+    for (i = 0; i < 20; i++) {
+        digest[i] = (unsigned char)
+         ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
+    }
+    /* Wipe variables */
+    i = 0;	/* JHB */
+    memset(context->buffer, 0, 64);
+    memset(context->state, 0, 20);
+    memset(context->count, 0, 8);
+    memset(finalcount, 0, 8);	/* SWR */
+#ifdef SHA1HANDSOFF  /* make SHA1Transform overwrite it's own static vars */
+    SHA1Transform(context->state, context->buffer);
+#endif
+}
+  
+/*************************************************************/
+
+/* This is not quite the MIME base64 algorithm: it uses _ instead of /,
+   and instead of padding the output with = characters we just make the
+   output shorter. */
+char *mybase64(uint8_t digest[20])
+{
+  static const char charz[] =
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+_";
+  uint8_t input[21];
+  static char output[28];
+  int i, j;
+  uint8_t *p;
+  char *q;
+  uint32_t bv;
+
+  memcpy(input, digest, 20);
+  input[20] = 0;		/* Pad to multiple of 3 bytes */
+
+  p = input;  q = output;
+  for ( i = 0 ; i < 7 ; i++ ) {
+    bv = (p[0] << 16) | (p[1] << 8) | p[2];
+    p += 3;
+    for ( j = 0 ; j < 4 ; j++ ) {
+      *q++ = charz[(bv >> 18) & 0x3f];
+      bv <<= 6;
+    }
+  }
+  *--q = '\0';			/* The last character is not significant */
+  return output;
+}
+
+#ifdef FOR_TESTING_ONLY
+
+int main(int argc, char** argv)
+{
+  int i;
+  SHA1_CTX context;
+  uint8_t digest[20], buffer[16384];
+  FILE* file;
+
+  if (argc < 2) {
+    file = stdin;
+  }
+  else {
+    if (!(file = fopen(argv[1], "rb"))) {
+      fputs("Unable to open file.", stderr);
+      return(-1);
+    }
+  } 
+  SHA1Init(&context);
+  while (!feof(file)) {  /* note: what if ferror(file) */
+    i = fread(buffer, 1, 16384, file);
+    SHA1Update(&context, buffer, i);
+  }
+  SHA1Final(digest, &context);
+  fclose(file);
+
+  puts(mybase64(digest));
+
+  return 0;
+}
+
+#endif

extra/syslinux-3.09/com32/libutil/unbase64.c

@@ -0,0 +1,78 @@
+#ident "$Id: unbase64.c,v 1.1 2005/01/21 00:49:46 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2005 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * unbase64.c
+ *
+ * Convert a string in base64 format to a byte array.
+ */
+
+#include <string.h>
+#include <base64.h>
+
+static const unsigned char _base64chars[] =
+"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789./";
+
+size_t unbase64(unsigned char *buffer, size_t bufsiz, const char *txt)
+{
+  unsigned int bits = 0;
+  int nbits = 0;
+  char base64tbl[256];
+  int i;
+  char v;
+  size_t nbytes = 0;
+
+  
+  memset(base64tbl, -1, sizeof base64tbl);
+
+  for ( i = 0 ; _base64chars[i] ; i++ ) {
+    base64tbl[_base64chars[i]] = i;
+  }
+  
+  /* Also support filesystem safe alternate base64 encoding */
+  base64tbl['-'] = 62;
+  base64tbl['_'] = 63;
+
+  while ( *txt ) {
+    if ( (v = base64tbl[(unsigned char) *txt]) >= 0 ) {
+      bits <<= 6;
+      bits += v;
+      nbits += 6;
+      if ( nbits >= 8 ) {
+	if ( nbytes < bufsiz )
+	  *buffer++ = (bits >> (nbits-8));
+	nbytes++;
+	nbits -= 8;
+      }
+    }      
+    txt++;
+  }
+
+  return nbytes;
+}
+