Import Dev86src-0.15.5.tar.gzv0.15.5

6 files changed, 1964 insertions, 0 deletions

diff --git a/libc/stdio/Config b/libc/stdio/Config
new file mode 100644
index 0000000..8f2b307
--- /dev/null
+++ b/libc/stdio/Config
@@ -0,0 +1,4 @@
+# 
+
+stdio:	Stdio package
+
diff --git a/libc/stdio/Makefile b/libc/stdio/Makefile
new file mode 100644
index 0000000..0fd8d97
--- /dev/null
+++ b/libc/stdio/Makefile
@@ -0,0 +1,49 @@
+# Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>
+# This file is part of the Linux-8086 C library and is distributed
+# under the GNU Library General Public License.
+
+ifneq ($(LIB_CPU),i86)
+CFLAGS=$(CCFLAGS) $(LIBDEFS) -DFLOATS
+endif
+
+ASRC=stdio.c
+AOBJ=_stdio_init.o fputc.o fgetc.o fflush.o fgets.o gets.o fputs.o	\
+     puts.o fread.o fwrite.o fopen.o fclose.o fseek.o rewind.o ftell.o	\
+     setbuffer.o setvbuf.o ungetc.o
+
+PSRC=printf.c
+POBJ=printf.o sprintf.o fprintf.o vprintf.o vsprintf.o vfprintf.o
+
+SSRC=scanf.c
+SOBJ=scanf.o sscanf.o fscanf.o vscanf.o vsscanf.o vfscanf.o
+
+OBJ= $(AOBJ) $(POBJ) $(SOBJ)
+
+CFLAGS=$(ARCH) $(CCFLAGS) $(DEFS)
+
+all: $(LIBC)
+	@$(RM) $(OBJ)
+
+$(LIBC): $(LIBC)($(OBJ))
+
+$(LIBC)($(AOBJ)): $(ASRC)
+	$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
+	$(AR) $(ARFLAGS) $@ $*.o
+
+$(LIBC)($(POBJ)): $(PSRC)
+	$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
+	$(AR) $(ARFLAGS) $@ $*.o
+
+$(LIBC)($(SOBJ)): $(SSRC)
+	$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
+	$(AR) $(ARFLAGS) $@ $*.o
+
+transfer:
+	-@rm -f ../include/stdio.h
+	cp -p stdio.h ../include/.
+
+clean:
+	rm -f *.o libc.a
+
+$(LIBC)($(OBJ)): stdio.h
+
diff --git a/libc/stdio/printf.c b/libc/stdio/printf.c
new file mode 100644
index 0000000..e41eca4
--- /dev/null
+++ b/libc/stdio/printf.c
@@ -0,0 +1,380 @@
+/*
+ * This file based on printf.c from 'Dlibs' on the atari ST  (RdeBath)
+ *
+ * 19-OCT-88: Dale Schumacher
+ * > John Stanley has again been a great help in debugging, particularly
+ * > with the printf/scanf functions which are his creation.  
+ *
+ *    Dale Schumacher                         399 Beacon Ave.
+ *    (alias: Dalnefre')                      St. Paul, MN  55104
+ *    dal@syntel.UUCP                         United States of America
+ *  "It's not reality that's important, but how you perceive things."
+ *
+ */
+
+/* Altered to use stdarg, made the core function vfprintf.
+ * Hooked into the stdio package using 'inside information'
+ * Altered sizeof() assumptions, now assumes all integers except chars
+ * will be either
+ *  sizeof(xxx) == sizeof(long) or sizeof(xxx) == sizeof(short)
+ *
+ * -RDB
+ */
+
+#include <sys/types.h>
+#include <fcntl.h>
+#ifdef __STDC__
+#include <stdarg.h>
+#define va_strt      va_start
+#else
+#include <varargs.h>
+#define va_strt(p,i) va_start(p)
+#endif
+
+#include "stdio.h"
+
+#ifdef L_printf
+
+#ifdef __STDC__
+int printf(const char * fmt, ...)
+#else
+int printf(fmt, va_alist)
+__const char *fmt;
+va_dcl
+#endif
+{
+  va_list ptr;
+  int rv;
+  va_strt(ptr, fmt);
+  rv = vfprintf(stdout,fmt,ptr);
+  va_end(ptr);
+  return rv;
+}
+#endif
+
+#ifdef L_sprintf
+#ifdef __STDC__
+int sprintf(char * sp, const char * fmt, ...)
+#else
+int sprintf(sp, fmt, va_alist)
+char * sp;
+__const char *fmt;
+va_dcl
+#endif
+{
+static FILE  string[1] =
+{
+   {0, 0, (char*)(unsigned) -1, 0, (char*) (unsigned) -1, -1,
+    _IOFBF | __MODE_WRITE}
+};
+
+  va_list ptr;
+  int rv;
+  va_strt(ptr, fmt);
+  string->bufpos = sp;
+  rv = vfprintf(string,fmt,ptr);
+  va_end(ptr);
+  *(string->bufpos) = 0;
+  return rv;
+}
+#endif
+
+#ifdef L_fprintf
+#ifdef __STDC__
+int fprintf(FILE * fp, const char * fmt, ...)
+#else
+int fprintf(fp, fmt, va_alist)
+FILE * fp;
+__const char *fmt;
+va_dcl
+#endif
+{
+  va_list ptr;
+  int rv;
+  va_strt(ptr, fmt);
+  rv = vfprintf(fp,fmt,ptr);
+  va_end(ptr);
+  return rv;
+}
+#endif
+
+#ifdef L_vprintf
+int vprintf(fmt, ap)
+__const char *fmt;
+va_list ap;
+{
+  return vfprintf(stdout,fmt,ap);
+}
+#endif
+
+#ifdef L_vsprintf
+int vsprintf(sp, fmt, ap)
+char * sp;
+__const char *fmt;
+va_list ap;
+{
+static FILE  string[1] =
+{
+   {0, 0, (char*)(unsigned) -1, 0, (char*) (unsigned) -1, -1,
+    _IOFBF | __MODE_WRITE}
+};
+
+  int rv;
+  string->bufpos = sp;
+  rv = vfprintf(string,fmt,ap);
+  *(string->bufpos) = 0;
+  return rv;
+}
+#endif
+
+#ifdef L_vfprintf
+
+#ifdef FLOATS
+int (*__fp_print)() = 0;
+#endif
+
+static int
+prtfld(op, buf, ljustf, sign, pad, width, preci, buffer_mode)
+register FILE *op;
+register unsigned char *buf;
+int   ljustf;
+register char sign;
+char  pad;
+register int width;
+int   preci;
+int   buffer_mode;
+/*
+ * Output the given field in the manner specified by the arguments. Return
+ * the number of characters output.
+ */
+{
+   register int cnt = 0, len;
+   register unsigned char ch;
+
+   len = strlen(buf);
+
+   if (*buf == '-')
+      sign = *buf++;
+   else if (sign)
+      len++;
+
+   if ((preci != -1) && (len > preci))	/* limit max data width */
+      len = preci;
+
+   if (width < len)		/* flexible field width or width overflow */
+      width = len;
+
+   /*
+    * at this point: width = total field width len   = actual data width
+    * (including possible sign character)
+    */
+   cnt = width;
+   width -= len;
+
+   while (width || len)
+   {
+      if (!ljustf && width)	/* left padding */
+      {
+	 if (len && sign && (pad == '0'))
+	    goto showsign;
+	 ch = pad;
+	 --width;
+      }
+      else if (len)
+      {
+	 if (sign)
+	 {
+	  showsign:ch = sign;	/* sign */
+	    sign = '\0';
+	 }
+	 else
+	    ch = *buf++;	/* main field */
+	 --len;
+      }
+      else
+      {
+	 ch = pad;		/* right padding */
+	 --width;
+      }
+      putc(ch, op);
+      if( ch == '\n' && buffer_mode == _IOLBF ) fflush(op);
+   }
+
+   return (cnt);
+}
+
+int
+vfprintf(op, fmt, ap)
+FILE *op;
+register __const char *fmt;
+register va_list ap;
+{
+   register int i, cnt = 0, ljustf, lval;
+   int   preci, dpoint, width;
+   char  pad, sign, radix, hash;
+   register char *ptmp;
+   char  tmp[64], *ltostr(), *ultostr();
+   int buffer_mode;
+
+   /* This speeds things up a bit for unbuffered */
+   buffer_mode = (op->mode&__MODE_BUF);
+   op->mode &= (~__MODE_BUF);
+
+   while (*fmt)
+   {
+      if (*fmt == '%')
+      {
+         if( buffer_mode == _IONBF ) fflush(op);
+	 ljustf = 0;		/* left justify flag */
+	 sign = '\0';		/* sign char & status */
+	 pad = ' ';		/* justification padding char */
+	 width = -1;		/* min field width */
+	 dpoint = 0;		/* found decimal point */
+	 preci = -1;		/* max data width */
+	 radix = 10;		/* number base */
+	 ptmp = tmp;		/* pointer to area to print */
+	 hash = 0;
+	 lval = (sizeof(int)==sizeof(long));	/* long value flaged */
+       fmtnxt:
+	 i = 0;
+	 for(;;)
+	 {
+	    ++fmt;
+	    if(*fmt < '0' || *fmt > '9' ) break;
+	    i = (i * 10) + (*fmt - '0');
+	    if (dpoint)
+	       preci = i;
+	    else if (!i && (pad == ' '))
+	    {
+	       pad = '0';
+	       goto fmtnxt;
+	    }
+	    else
+	       width = i;
+	 }
+
+	 switch (*fmt)
+	 {
+	 case '\0':		/* early EOS */
+	    --fmt;
+	    goto charout;
+
+	 case '-':		/* left justification */
+	    ljustf = 1;
+	    goto fmtnxt;
+
+	 case ' ':
+	 case '+':		/* leading sign flag */
+	    sign = *fmt;
+	    goto fmtnxt;
+
+	 case '*':		/* parameter width value */
+	    i = va_arg(ap, int);
+	    if (dpoint)
+	       preci = i;
+	    else
+	       width = i;
+	    goto fmtnxt;
+
+	 case '.':		/* secondary width field */
+	    dpoint = 1;
+	    goto fmtnxt;
+
+	 case 'l':		/* long data */
+	    lval = 1;
+	    goto fmtnxt;
+
+	 case 'h':		/* short data */
+	    lval = 0;
+	    goto fmtnxt;
+
+	 case 'd':		/* Signed decimal */
+	 case 'i':
+	    ptmp = ltostr((long) ((lval)
+			 ? va_arg(ap, long)
+			 : va_arg(ap, short)),
+		 10);
+	    goto printit;
+
+	 case 'b':		/* Unsigned binary */
+	    radix = 2;
+	    goto usproc;
+
+	 case 'o':		/* Unsigned octal */
+	    radix = 8;
+	    goto usproc;
+
+	 case 'p':		/* Pointer */
+	    lval = (sizeof(char*) == sizeof(long));
+	    pad = '0';
+	    width = 6;
+	    preci = 8;
+	    /* fall thru */
+
+	 case 'x':		/* Unsigned hexadecimal */
+	 case 'X':
+	    radix = 16;
+	    /* fall thru */
+
+	 case 'u':		/* Unsigned decimal */
+	  usproc:
+	    ptmp = ultostr((unsigned long) ((lval)
+				   ? va_arg(ap, unsigned long)
+				   : va_arg(ap, unsigned short)),
+		  radix);
+	    if( hash && radix == 8 ) { width = strlen(ptmp)+1; pad='0'; }
+	    goto printit;
+
+	 case '#':
+	    hash=1;
+	    goto fmtnxt;
+
+	 case 'c':		/* Character */
+	    ptmp[0] = va_arg(ap, int);
+	    ptmp[1] = '\0';
+	    goto nopad;
+
+	 case 's':		/* String */
+	    ptmp = va_arg(ap, char*);
+	  nopad:
+	    sign = '\0';
+	    pad = ' ';
+	  printit:
+	    cnt += prtfld(op, ptmp, ljustf,
+			   sign, pad, width, preci, buffer_mode);
+	    break;
+
+#if FLOATS
+	 case 'e':		/* float */
+	 case 'f':
+	 case 'g':
+	 case 'E':
+	 case 'G':
+	    if ( __fp_print )
+	    {
+	       (*__fp_print)(&va_arg(ap, double), *fmt, preci, ptmp);
+	       preci = -1;
+	       goto printit;
+	    }
+	    /* FALLTHROUGH if no floating printf available */
+#endif
+
+	 default:		/* unknown character */
+	    goto charout;
+	 }
+      }
+      else
+      {
+       charout:
+	 putc(*fmt, op);	/* normal char out */
+	 ++cnt;
+         if( *fmt == '\n' && buffer_mode == _IOLBF ) fflush(op);
+      }
+      ++fmt;
+   }
+   op->mode |= buffer_mode;
+   if( buffer_mode == _IONBF ) fflush(op);
+   if( buffer_mode == _IOLBF ) op->bufwrite = op->bufstart;
+   return (cnt);
+}
+#endif
diff --git a/libc/stdio/scanf.c b/libc/stdio/scanf.c
new file mode 100644
index 0000000..1e0f282
--- /dev/null
+++ b/libc/stdio/scanf.c
@@ -0,0 +1,536 @@
+/*
+ * This file based on scanf.c from 'Dlibs' on the atari ST  (RdeBath)
+ *
+ * 19-OCT-88: Dale Schumacher
+ * > John Stanley has again been a great help in debugging, particularly
+ * > with the printf/scanf functions which are his creation.  
+ *
+ *    Dale Schumacher                         399 Beacon Ave.
+ *    (alias: Dalnefre')                      St. Paul, MN  55104
+ *    dal@syntel.UUCP                         United States of America
+ *  "It's not reality that's important, but how you perceive things."
+ *
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+
+#ifdef __STDC__
+#include <stdarg.h>
+#define va_strt      va_start
+#else
+#include <varargs.h>
+#define va_strt(p,i) va_start(p)
+#endif
+
+#ifdef L_scanf
+#ifdef __STDC__
+int scanf(const char * fmt, ...)
+#else
+int scanf(fmt, va_alist)
+__const char *fmt;
+va_dcl
+#endif
+{
+  va_list ptr;
+  int rv;
+  va_strt(ptr, fmt);
+  rv = vfscanf(stdin,fmt,ptr);
+  va_end(ptr);
+  return rv;
+}
+#endif
+
+#ifdef L_sscanf
+#ifdef __STDC__
+int sscanf(char * sp, const char * fmt, ...)
+#else
+int sscanf(sp, fmt, va_alist)
+char * sp;
+__const char *fmt;
+va_dcl
+#endif
+{
+static FILE  string[1] =
+{
+   {0, (char*)(unsigned) -1, 0, 0, (char*) (unsigned) -1, -1,
+    _IOFBF | __MODE_READ}
+};
+
+  va_list ptr;
+  int rv;
+  va_strt(ptr, fmt);
+  string->bufpos = sp;
+  rv = vfscanf(string,fmt,ptr);
+  va_end(ptr);
+  return rv;
+}
+#endif
+
+#ifdef L_fscanf
+#ifdef __STDC__
+int fscanf(FILE * fp, const char * fmt, ...)
+#else
+int fscanf(fp, fmt, va_alist)
+FILE * fp;
+__const char *fmt;
+va_dcl
+#endif
+{
+  va_list ptr;
+  int rv;
+  va_strt(ptr, fmt);
+  rv = vfscanf(fp,fmt,ptr);
+  va_end(ptr);
+  return rv;
+}
+#endif
+
+#ifdef L_vscanf
+int vscanf(fmt, ap)
+__const char *fmt;
+va_list ap;
+{
+  return vfscanf(stdin,fmt,ap);
+}
+#endif
+
+#ifdef L_vsscanf
+int vsscanf(sp, fmt, ap)
+char * sp;
+__const char *fmt;
+{
+static FILE  string[1] =
+{
+   {0, (char*)(unsigned) -1, 0, 0, (char*) (unsigned) -1, -1,
+    _IOFBF | __MODE_READ}
+};
+
+  string->bufpos = sp;
+  return vfscanf(string,fmt,ap);
+}
+#endif
+
+#ifdef L_vfscanf
+/* #define	skip()	do{c=getc(fp); if (c<1) goto done;}while(isspace(c))*/
+
+#define	skip()	while(isspace(c)) { if ((c=getc(fp))<1) goto done; }
+
+#if FLOATS
+/* fp scan actions */
+#define F_NADA	0	/* just change state */
+#define F_SIGN	1	/* set sign */
+#define F_ESIGN	2	/* set exponent's sign */
+#define F_INT	3	/* adjust integer part */
+#define F_FRAC	4	/* adjust fraction part */
+#define F_EXP	5	/* adjust exponent part */
+#define F_QUIT	6
+
+#define NSTATE	8
+#define FS_INIT		0	/* initial state */
+#define FS_SIGNED	1	/* saw sign */
+#define FS_DIGS		2	/* saw digits, no . */
+#define FS_DOT		3	/* saw ., no digits */
+#define FS_DD		4	/* saw digits and . */
+#define FS_E		5	/* saw 'e' */
+#define FS_ESIGN	6	/* saw exp's sign */
+#define FS_EDIGS	7	/* saw exp's digits */
+
+#define FC_DIG		0
+#define FC_DOT		1
+#define FC_E		2
+#define FC_SIGN		3
+
+/* given transition,state do what action? */
+int fp_do[][NSTATE] = {
+	{F_INT,F_INT,F_INT,
+	 F_FRAC,F_FRAC,
+	 F_EXP,F_EXP,F_EXP},	/* see digit */
+	{F_NADA,F_NADA,F_NADA,
+	 F_QUIT,F_QUIT,F_QUIT,F_QUIT,F_QUIT},	/* see '.' */
+	{F_QUIT,F_QUIT,
+	 F_NADA,F_QUIT,F_NADA,
+	 F_QUIT,F_QUIT,F_QUIT},	/* see e/E */
+	{F_SIGN,F_QUIT,F_QUIT,F_QUIT,F_QUIT,
+	 F_ESIGN,F_QUIT,F_QUIT},	/* see sign */
+};
+/* given transition,state what is new state? */
+int fp_ns[][NSTATE] = {
+	{FS_DIGS,FS_DIGS,FS_DIGS,
+	 FS_DD,FS_DD,
+	 FS_EDIGS,FS_EDIGS,FS_EDIGS},	/* see digit */
+	{FS_DOT,FS_DOT,FS_DD,
+	 },	/* see '.' */
+	{0,0,
+	 FS_E,0,FS_E,
+	},	/* see e/E */
+	{FS_SIGNED,0,0,0,0,
+	 FS_ESIGN,0,0},	/* see sign */
+};
+/* which states are valid terminators? */
+int fp_sval[NSTATE] = {
+	0,0,1,0,1,0,0,1
+};
+#endif
+
+vfscanf(fp, fmt, ap)
+register FILE *fp;
+register char *fmt;
+va_list ap;
+
+{
+   register long n;
+   register int c, width, lval, cnt = 0;
+   int   store, neg, base, wide1, endnull, rngflag, c2;
+   register unsigned char *p;
+   unsigned char delim[128], digits[17], *q;
+#if FLOATS
+   long  frac, expo;
+   int   eneg, fraclen, fstate, trans;
+   double fx, fp_scan();
+#endif
+
+   if (!*fmt)
+      return (0);
+
+   c = getc(fp);
+   while (c > 0)
+   {
+      store = 0;
+      if (*fmt == '%')
+      {
+	 n = 0;
+	 width = -1;
+	 wide1 = 1;
+	 base = 10;
+	 lval = (sizeof(long) == sizeof(int));
+	 store = 1;
+	 endnull = 1;
+	 neg = -1;
+
+	 strcpy(delim, "\011\012\013\014\015 ");
+	 strcpy(digits, "0123456789ABCDEF");
+
+	 if (fmt[1] == '*')
+	 {
+	    endnull = store = 0;
+	    ++fmt;
+	 }
+
+	 while (isdigit(*++fmt))/* width digit(s) */
+	 {
+	    if (width == -1)
+	       width = 0;
+	    wide1 = width = (width * 10) + (*fmt - '0');
+	 }
+	 --fmt;
+       fmtnxt:
+	 ++fmt;
+	 switch (tolower(*fmt))	/* tolower() is a MACRO! */
+	 {
+	 case '*':
+	    endnull = store = 0;
+	    goto fmtnxt;
+
+	 case 'l':		/* long data */
+	    lval = 1;
+	    goto fmtnxt;
+	 case 'h':		/* short data */
+	    lval = 0;
+	    goto fmtnxt;
+
+	 case 'i':		/* any-base numeric */
+	    base = 0;
+	    goto numfmt;
+
+	 case 'b':		/* unsigned binary */
+	    base = 2;
+	    goto numfmt;
+
+	 case 'o':		/* unsigned octal */
+	    base = 8;
+	    goto numfmt;
+
+	 case 'x':		/* unsigned hexadecimal */
+	    base = 16;
+	    goto numfmt;
+
+	 case 'd':		/* SIGNED decimal */
+	    neg = 0;
+	    /* FALL-THRU */
+
+	 case 'u':		/* unsigned decimal */
+	  numfmt:skip();
+
+	    if (isupper(*fmt))
+	       lval = 1;
+
+	    if (!base)
+	    {
+	       base = 10;
+	       neg = 0;
+	       if (c == '%')
+	       {
+		  base = 2;
+		  goto skip1;
+	       }
+	       else if (c == '0')
+	       {
+		  c = getc(fp);
+		  if (c < 1)
+		     goto savnum;
+		  if ((c != 'x')
+		      && (c != 'X'))
+		  {
+		     base = 8;
+		     digits[8] = '\0';
+		     goto zeroin;
+		  }
+		  base = 16;
+		  goto skip1;
+	       }
+	    }
+
+	    if ((neg == 0) && (base == 10)
+		&& ((neg = (c == '-')) || (c == '+')))
+	    {
+	     skip1:
+	       c = getc(fp);
+	       if (c < 1)
+		  goto done;
+	    }
+
+	    digits[base] = '\0';
+	    p = ((unsigned char *)
+		 strchr(digits, toupper(c)));
+
+	    if ((!c || !p) && width)
+	       goto done;
+
+	    while (p && width-- && c)
+	    {
+	       n = (n * base) + (p - digits);
+	       c = getc(fp);
+	     zeroin:
+	       p = ((unsigned char *)
+		    strchr(digits, toupper(c)));
+	    }
+	  savnum:
+	    if (store)
+	    {
+	       if (neg == 1)
+		  n = -n;
+	       if (lval)
+		  *va_arg(ap, long*) = n;
+	       else
+		  *va_arg(ap, short*) = n;
+	       ++cnt;
+	    }
+	    break;
+
+#if FLOATS
+	 case 'e':		/* float */
+	 case 'f':
+	 case 'g':
+	    skip();
+
+	    if (isupper(*fmt))
+	       lval = 1;
+
+	    fstate = FS_INIT;
+	    neg = 0;
+	    eneg = 0;
+	    n = 0;
+	    frac = 0;
+	    expo = 0;
+	    fraclen = 0;
+
+	    while (c && width--)
+	    {
+	       if (c >= '0' && c <= '9')
+		  trans = FC_DIG;
+	       else if (c == '.')
+		  trans = FC_DOT;
+	       else if (c == '+' || c == '-')
+		  trans = FC_SIGN;
+	       else if (tolower(c) == 'e')
+		  trans = FC_E;
+	       else
+		  goto fdone;
+
+	       switch (fp_do[trans][fstate])
+	       {
+	       case F_SIGN:
+		  neg = (c == '-');
+		  break;
+	       case F_ESIGN:
+		  eneg = (c == '-');
+		  break;
+	       case F_INT:
+		  n = 10 * n + (c - '0');
+		  break;
+	       case F_FRAC:
+		  frac = 10 * frac + (c - '0');
+		  fraclen++;
+		  break;
+	       case F_EXP:
+		  expo = 10 * expo + (c - '0');
+		  break;
+	       case F_QUIT:
+		  goto fdone;
+	       }
+	       fstate = fp_ns[trans][fstate];
+	       c = getc(fp);
+	    }
+
+	  fdone:
+	    if (!fp_sval[fstate])
+	       goto done;
+	    if (store)
+	    {
+	       fx = fp_scan(neg, eneg, n, frac, expo, fraclen);
+	       if (lval)
+		  *va_arg(ap, double *) = fx;
+	       else
+		  *va_arg(ap, float *) = fx;
+	       ++cnt;
+	    }
+	    break;
+#endif
+
+	 case 'c':		/* character data */
+	    width = wide1;
+	    lval = endnull = 0;
+	    delim[0] = '\0';
+	    goto strproc;
+
+	 case '[':		/* string w/ delimiter set */
+
+	    /* get delimiters */
+	    p = delim;
+
+	    if (*++fmt == '^')
+	    {
+	       fmt++;
+	       lval = 0;
+	    }
+	    else
+	       lval = 1;
+
+	    rngflag = 2;
+	    if ((*fmt == ']') || (*fmt == '-'))
+	    {
+	       *p++ = *fmt++;
+	       rngflag = 0;
+	    }
+
+	    while (*fmt != ']')
+	    {
+	       if (*fmt == '\0')
+		  goto done;
+	       switch (rngflag)
+	       {
+	       case 1:
+		  c2 = *(p - 2);
+		  if (c2 <= *fmt)
+		  {
+		     p -= 2;
+		     while (c2 < *fmt)
+			*p++ = c2++;
+		     rngflag = 2;
+		     break;
+		  }
+		  /* fall thru intentional */
+
+	       case 0:
+		  rngflag = (*fmt == '-');
+		  break;
+
+	       case 2:
+		  rngflag = 0;
+	       }
+
+	       *p++ = *fmt++;
+	    }
+
+	    *p = '\0';
+	    goto strproc;
+
+	 case 's':		/* string data */
+	    lval = 0;
+	    skip();
+	  strproc:
+	    /* process string */
+	    p = va_arg(ap, unsigned char *);
+
+	    /* if the 1st char fails, match fails */
+	    if (width)
+	    {
+	       q = ((unsigned char *)
+		    strchr(delim, c));
+	       if ((c < 1) || lval == (q==0))
+	       {
+		  if (endnull)
+		     *p = '\0';
+		  goto done;
+	       }
+	    }
+
+	    for (;;)		/* FOREVER */
+	    {
+	       if (store)
+		  *p++ = c;
+	       if (((c = getc(fp)) < 1) ||
+		   (--width == 0))
+		  break;
+
+	       q = ((unsigned char *)
+		    strchr(delim, c));
+	       if (lval == (q==0))
+	          break;
+	    }
+
+	    if (store)
+	    {
+	       if (endnull)
+		  *p = '\0';
+	       ++cnt;
+	    }
+	    break;
+
+	 case '\0':		/* early EOS */
+	    --fmt;
+	    /* FALL THRU */
+
+	 default:
+	    goto cmatch;
+	 }
+      }
+      else if (isspace(*fmt))	/* skip whitespace */
+      {
+	 skip();
+      }
+      else
+      {				/* normal match char */
+       cmatch:
+	 if (c != *fmt)
+	    break;
+	 c = getc(fp);
+      }
+
+      if (!*++fmt)
+	 break;
+   }
+
+ done:				/* end of scan */
+   if ((c == EOF) && (cnt == 0))
+      return (EOF);
+
+   if( c != EOF )
+      ungetc(c, fp);
+   return (cnt);
+}
+
+#endif
+
diff --git a/libc/stdio/stdio.c b/libc/stdio/stdio.c
new file mode 100644
index 0000000..6b0dba0
--- /dev/null
+++ b/libc/stdio/stdio.c
@@ -0,0 +1,866 @@
+/* Copyright (C) 1996 Robert de Bath <rdebath@cix.compulink.co.uk>
+ * This file is part of the Linux-8086 C library and is distributed
+ * under the GNU Library General Public License.
+ */
+
+/* This is an implementation of the C standard IO package.
+ */
+
+#include <stdio.h>
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <malloc.h>
+#include <errno.h>
+
+#ifndef O_BINARY
+#define O_BINARY	0
+#endif
+
+extern FILE *__IO_list;		/* For fflush at exit */
+
+#ifdef __AS386_16__
+#define Inline_init
+#endif
+
+#ifdef __AS386_32__
+#define Inline_init
+#endif
+
+#ifndef Inline_init
+#define Inline_init __io_init_vars()
+#endif
+
+#ifdef L__stdio_init
+
+#define buferr (stderr->unbuf)	/* Stderr is unbuffered */
+
+FILE *__IO_list = 0;		/* For fflush at exit */
+
+static char bufin[BUFSIZ];
+static char bufout[BUFSIZ];
+#ifndef buferr
+static char buferr[BUFSIZ];
+#endif
+
+FILE  stdin[1] =
+{
+   {bufin, bufin, bufin, bufin, bufin + sizeof(bufin),
+    0, _IOFBF | __MODE_READ | __MODE_IOTRAN}
+};
+
+FILE  stdout[1] =
+{
+   {bufout, bufout, bufout, bufout, bufout + sizeof(bufout),
+    1, _IOFBF | __MODE_WRITE | __MODE_IOTRAN}
+};
+
+FILE  stderr[1] =
+{
+   {buferr, buferr, buferr, buferr, buferr + sizeof(buferr),
+    2, _IONBF | __MODE_WRITE | __MODE_IOTRAN}
+};
+
+/* Call the stdio initiliser; it's main job it to call atexit */
+
+#ifdef __AS386_16__
+#define STATIC static
+
+#asm
+  loc	1		! Make sure the pointer is in the correct segment
+auto_func:		! Label for bcc -M to work.
+  .word	___io_init_vars	! Pointer to the autorun function
+  .text			! So the function after is also in the correct seg.
+#endasm
+#endif
+
+#ifdef __AS386_32__
+#define STATIC static
+
+#asm
+  loc	1		! Make sure the pointer is in the correct segment
+auto_func:		! Label for bcc -M to work.
+  .long	___io_init_vars	! Pointer to the autorun function
+  .text			! So the function after is also in the correct seg.
+#endasm
+#endif
+
+#ifndef STATIC
+#define STATIC
+#endif
+
+STATIC int 
+__stdio_close_all()
+{
+   FILE *fp;
+   fflush(stdout);
+   fflush(stderr);
+   for (fp = __IO_list; fp; fp = fp->next)
+   {
+      fflush(fp);
+      close(fp->fd);
+      /* Note we're not de-allocating the memory */
+      /* There doesn't seem to be much point :-) */
+      fp->fd = -1;
+   }
+}
+
+STATIC void 
+__io_init_vars()
+{
+#ifndef __AS386_16__
+#ifndef __AS386_32__
+   static int first_time = 1;
+   if( !first_time ) return ;
+   first_time = 0;
+#endif
+#endif
+   if (isatty(1))
+      stdout->mode |= _IOLBF;
+   atexit(__stdio_close_all);
+}
+#endif
+
+#ifdef L_fputc
+int
+fputc(ch, fp)
+int   ch;
+FILE *fp;
+{
+   register int v;
+   Inline_init;
+
+   /* If last op was a read ... note fflush may change fp->mode and ret OK */
+   if ((fp->mode & __MODE_READING) && fflush(fp))
+      return EOF;
+
+   v = fp->mode;
+   /* Can't write if there's been an EOF or error then return EOF */
+   if ((v & (__MODE_WRITE | __MODE_EOF | __MODE_ERR)) != __MODE_WRITE)
+      return EOF;
+
+   /* In MSDOS translation mode */
+#if __MODE_IOTRAN && !O_BINARY
+   if (ch == '\n' && (v & __MODE_IOTRAN) && fputc('\r', fp) == EOF)
+      return EOF;
+#endif
+
+   /* Buffer is full */
+   if (fp->bufpos >= fp->bufend && fflush(fp))
+      return EOF;
+
+   /* Right! Do it! */
+   *(fp->bufpos++) = ch;
+   fp->mode |= __MODE_WRITING;
+
+   /* Unbuffered or Line buffered and end of line */
+   if (((ch == '\n' && (v & _IOLBF)) || (v & _IONBF))
+       && fflush(fp))
+      return EOF;
+
+   /* Can the macro handle this by itself ? */
+   if (v & (__MODE_IOTRAN | _IOLBF | _IONBF))
+      fp->bufwrite = fp->bufstart;	/* Nope */
+   else
+      fp->bufwrite = fp->bufend;	/* Yup */
+
+   /* Correct return val */
+   return (unsigned char) ch;
+}
+#endif
+
+#ifdef L_fgetc
+int
+fgetc(fp)
+FILE *fp;
+{
+   int   ch;
+
+   if (fp->mode & __MODE_WRITING)
+      fflush(fp);
+
+ try_again:
+   /* Can't read or there's been an EOF or error then return EOF */
+   if ((fp->mode & (__MODE_READ | __MODE_EOF | __MODE_ERR)) != __MODE_READ)
+      return EOF;
+
+   /* Nothing in the buffer - fill it up */
+   if (fp->bufpos >= fp->bufread)
+   {
+      /* Bind stdin to stdout if it's open and line buffered */
+      if( fp == stdin && stdout->fd >= 0 && (stdout->mode & _IOLBF ))
+         fflush(stdout);
+
+      fp->bufpos = fp->bufread = fp->bufstart;
+      ch = fread(fp->bufpos, 1, fp->bufend - fp->bufstart, fp);
+      if (ch == 0)
+	 return EOF;
+      fp->bufread += ch;
+      fp->mode |= __MODE_READING;
+      fp->mode &= ~__MODE_UNGOT;
+   }
+   ch = *(fp->bufpos++);
+
+#if __MODE_IOTRAN && !O_BINARY
+   /* In MSDOS translation mode; WARN: Doesn't work with UNIX macro */
+   if (ch == '\r' && (fp->mode & __MODE_IOTRAN))
+      goto try_again;
+#endif
+
+   return ch;
+}
+#endif
+
+#ifdef L_fflush
+int
+fflush(fp)
+FILE *fp;
+{
+   int   len, cc, rv=0;
+   char * bstart;
+   if (fp == NULL)		/* On NULL flush the lot. */
+   {
+      if (fflush(stdin))
+	 return EOF;
+      if (fflush(stdout))
+	 return EOF;
+      if (fflush(stderr))
+	 return EOF;
+
+      for (fp = __IO_list; fp; fp = fp->next)
+	 if (fflush(fp))
+	    return EOF;
+
+      return 0;
+   }
+
+   /* If there's output data pending */
+   if (fp->mode & __MODE_WRITING)
+   {
+      len = fp->bufpos - fp->bufstart;
+
+      if (len)
+      {
+	 bstart = fp->bufstart;
+	 /*
+	  * The loop is so we don't get upset by signals or partial writes.
+	  */
+	 do
+	 {
+	    cc = write(fp->fd, bstart, len);
+	    if( cc > 0 )
+	    {
+	       bstart+=cc; len-=cc;
+	    }
+	 }
+	 while ( len>0 && (cc>0 || (cc == -1 && errno == EINTR)));
+	 /*
+	  * If we get here with len!=0 there was an error, exactly what to
+	  * do about it is another matter ...
+	  *
+	  * I'll just clear the buffer.
+	  */
+	 if (len)
+	 {
+	    fp->mode |= __MODE_ERR;
+	    rv = EOF;
+	 }
+      }
+   }
+   /* If there's data in the buffer sychronise the file positions */
+   else if (fp->mode & __MODE_READING)
+   {
+      /* Humm, I think this means sync the file like fpurge() ... */
+      /* Anyway the user isn't supposed to call this function when reading */
+
+      len = fp->bufread - fp->bufpos;	/* Bytes buffered but unread */
+      /* If it's a file, make it good */
+      if (len > 0 && lseek(fp->fd, (long)-len, 1) < 0)
+      {
+	 /* Hummm - Not certain here, I don't think this is reported */
+	 /*
+	  * fp->mode |= __MODE_ERR; return EOF;
+	  */
+      }
+   }
+
+   /* All done, no problem */
+   fp->mode &= (~(__MODE_READING|__MODE_WRITING|__MODE_EOF|__MODE_UNGOT));
+   fp->bufread = fp->bufwrite = fp->bufpos = fp->bufstart;
+   return rv;
+}
+#endif
+
+#ifdef L_fgets
+/* Nothing special here ... */
+char *
+fgets(s, count, f)
+char *s;
+size_t count;
+FILE *f;
+{
+   char *ret;
+   register size_t i;
+   register int ch;
+
+   ret = s;
+   for (i = count-1; i > 0; i--)
+   {
+      ch = getc(f);
+      if (ch == EOF)
+      {
+	 if (s == ret)
+	    return 0;
+	 break;
+      }
+      *s++ = (char) ch;
+      if (ch == '\n')
+	 break;
+   }
+   *s = 0;
+
+   if (ferror(f))
+      return 0;
+   return ret;
+}
+#endif
+
+#ifdef L_gets
+char *
+gets(str)			/* BAD function; DON'T use it! */
+char *str;
+{
+   /* Auwlright it will work but of course _your_ program will crash */
+   /* if it's given a too long line */
+   register char *p = str;
+   register int c;
+
+   while (((c = getc(stdin)) != EOF) && (c != '\n'))
+      *p++ = c;
+   *p = '\0';
+   return (((c == EOF) && (p == str)) ? NULL : str);	/* NULL == EOF */
+}
+#endif
+
+#ifdef L_fputs
+int
+fputs(str, fp)
+char *str;
+FILE *fp;
+{
+   register int n = 0;
+   while (*str)
+   {
+      if (putc(*str++, fp) == EOF)
+	 return (EOF);
+      ++n;
+   }
+   return (n);
+}
+#endif
+
+#ifdef L_puts
+int
+puts(str)
+char *str;
+{
+   register int n;
+
+   if (((n = fputs(str, stdout)) == EOF)
+       || (putc('\n', stdout) == EOF))
+      return (EOF);
+   return (++n);
+}
+#endif
+
+#ifdef L_fread
+/*
+ * fread will often be used to read in large chunks of data calling read()
+ * directly can be a big win in this case. Beware also fgetc calls this
+ * function to fill the buffer.
+ * 
+ * This ignores __MODE__IOTRAN; probably exactly what you want. (It _is_ what
+ * fgetc wants)
+ */
+int
+fread(buf, size, nelm, fp)
+char *buf;
+int   size;
+int   nelm;
+FILE *fp;
+{
+   int   len, v;
+   unsigned bytes, got = 0;
+   Inline_init;
+
+   v = fp->mode;
+
+   /* Want to do this to bring the file pointer up to date */
+   if (v & __MODE_WRITING)
+      fflush(fp);
+
+   /* Can't read or there's been an EOF or error then return zero */
+   if ((v & (__MODE_READ | __MODE_EOF | __MODE_ERR)) != __MODE_READ)
+      return 0;
+
+   /* This could be long, doesn't seem much point tho */
+   bytes = size * nelm;
+
+   len = fp->bufread - fp->bufpos;
+   if (len >= bytes)		/* Enough buffered */
+   {
+      memcpy(buf, fp->bufpos, (unsigned) bytes);
+      fp->bufpos += bytes;
+      return nelm;
+   }
+   else if (len > 0)		/* Some buffered */
+   {
+      memcpy(buf, fp->bufpos, len);
+      fp->bufpos += len;
+      got = len;
+   }
+
+   /* Need more; do it with a direct read */
+   len = read(fp->fd, buf + got, (unsigned) (bytes - got));
+
+   /* Possibly for now _or_ later */
+   if (len < 0)
+   {
+      fp->mode |= __MODE_ERR;
+      len = 0;
+   }
+   else if (len == 0)
+      fp->mode |= __MODE_EOF;
+
+   return (got + len) / size;
+}
+#endif
+
+#ifdef L_fwrite
+/*
+ * Like fread, fwrite will often be used to write out large chunks of
+ * data; calling write() directly can be a big win in this case.
+ * 
+ * But first we check to see if there's space in the buffer.
+ * 
+ * Again this ignores __MODE__IOTRAN.
+ */
+int
+fwrite(buf, size, nelm, fp)
+char *buf;
+int   size;
+int   nelm;
+FILE *fp;
+{
+   register int v;
+   int   len;
+   unsigned bytes, put;
+
+   /* If last op was a read ... note fflush may change fp->mode and ret OK */
+   if ((fp->mode & __MODE_READING) && fflush(fp))
+      return 0;
+
+   v = fp->mode;
+   /* Can't write or there's been an EOF or error then return 0 */
+   if ((v & (__MODE_WRITE | __MODE_EOF | __MODE_ERR)) != __MODE_WRITE)
+      return 0;
+
+   /* This could be long, doesn't seem much point tho */
+   bytes = size * nelm;
+
+   len = fp->bufend - fp->bufpos;
+
+   /* Flush the buffer if not enough room */
+   if (bytes > len)
+      if (fflush(fp))
+	 return 0;
+
+   len = fp->bufend - fp->bufpos;
+   if (bytes <= len)		/* It'll fit in the buffer ? */
+   {
+      register int do_flush=0;
+      fp->mode |= __MODE_WRITING;
+      memcpy(fp->bufpos, buf, bytes);
+      if (v & _IOLBF)
+      {
+         if(memchr(fp->bufpos, '\n', bytes))
+	    do_flush=1;
+      }
+      fp->bufpos += bytes;
+
+      /* If we're unbuffered or line buffered and have seen nl */
+      if (do_flush || (v & _IONBF) != 0)
+	 fflush(fp);
+
+      return nelm;
+   }
+   else
+      /* Too big for the buffer */
+   {
+      put = bytes;
+      do
+      {
+         len = write(fp->fd, buf, bytes);
+	 if( len > 0 )
+	 {
+	    buf+=len; bytes-=len;
+	 }
+      }
+      while (len > 0 || (len == -1 && errno == EINTR));
+
+      if (len < 0)
+	 fp->mode |= __MODE_ERR;
+
+      put -= bytes;
+   }
+
+   return put / size;
+}
+#endif
+
+#ifdef L_rewind
+void
+rewind(fp)
+FILE * fp;
+{
+   fseek(fp, (long)0, 0);
+   clearerr(fp);
+}
+#endif
+
+#ifdef L_fseek
+int
+fseek(fp, offset, ref)
+FILE *fp;
+long  offset;
+int   ref;
+{
+#if 1
+   /* if __MODE_READING and no ungetc ever done can just move pointer */
+
+   if ( (fp->mode &(__MODE_READING | __MODE_UNGOT)) == __MODE_READING && 
+        ( ref == SEEK_SET || ref == SEEK_CUR ))
+   {
+      long fpos = lseek(fp->fd, 0L, SEEK_CUR);
+      if( fpos == -1 ) return EOF;
+
+      if( ref == SEEK_CUR )
+      {
+         ref = SEEK_SET;
+	 offset = fpos + offset + fp->bufpos - fp->bufread;
+      }
+      if( ref == SEEK_SET )
+      {
+         if ( offset < fpos && offset >= fpos + fp->bufstart - fp->bufread )
+	 {
+	    fp->bufpos = offset - fpos + fp->bufread;
+	    return 0;
+	 }
+      }
+   }
+#endif
+
+   /* Use fflush to sync the pointers */
+
+   if (fflush(fp) == EOF)
+      return EOF;
+   if (lseek(fp->fd, offset, ref) < 0)
+      return EOF;
+   return 0;
+}
+#endif
+
+#ifdef L_ftell
+long ftell(fp)
+FILE * fp;
+{
+   long rv;
+   if (fflush(fp) == EOF)
+      return EOF;
+   return lseek(fp->fd, 0L, SEEK_CUR);
+}
+#endif
+
+#ifdef L_fopen
+/*
+ * This Fopen is all three of fopen, fdopen and freopen. The macros in
+ * stdio.h show the other names.
+ */
+FILE *
+__fopen(fname, fd, fp, mode)
+char *fname;
+int   fd;
+FILE *fp;
+char *mode;
+{
+   int   open_mode = 0;
+#if __MODE_IOTRAN && !O_BINARY
+   int	 do_iosense = 1;
+#endif
+   int   fopen_mode = 0;
+   FILE *nfp = 0;
+
+   /* If we've got an fp close the old one (freopen) */
+   if (fp)
+   {
+      /* Careful, don't de-allocate it */
+      fopen_mode |= (fp->mode & (__MODE_BUF | __MODE_FREEFIL | __MODE_FREEBUF));
+      fp->mode &= ~(__MODE_FREEFIL | __MODE_FREEBUF);
+      fclose(fp);
+   }
+
+   /* decode the new open mode */
+   while (*mode)
+      switch (*mode++)
+      {
+      case 'r':
+	 fopen_mode |= __MODE_READ;
+	 break;
+      case 'w':
+	 fopen_mode |= __MODE_WRITE;
+	 open_mode = (O_CREAT | O_TRUNC);
+	 break;
+      case 'a':
+	 fopen_mode |= __MODE_WRITE;
+	 open_mode = (O_CREAT | O_APPEND);
+	 break;
+      case '+':
+	 fopen_mode |= __MODE_RDWR;
+	 break;
+#if __MODE_IOTRAN || O_BINARY
+      case 'b':		/* Binary */
+	 fopen_mode &= ~__MODE_IOTRAN;
+	 open_mode |= O_BINARY;
+#if __MODE_IOTRAN && !O_BINARY
+	 do_iosense=0;
+#endif
+	 break;
+      case 't':		/* Text */
+	 fopen_mode |= __MODE_IOTRAN;
+#if __MODE_IOTRAN && !O_BINARY
+	 do_iosense=0;
+#endif
+	 break;
+#endif
+      }
+
+   /* Add in the read/write options to mode for open() */
+   switch (fopen_mode & (__MODE_READ | __MODE_WRITE))
+   {
+   case 0:
+      return 0;
+   case __MODE_READ:
+      open_mode |= O_RDONLY;
+      break;
+   case __MODE_WRITE:
+      open_mode |= O_WRONLY;
+      break;
+   default:
+      open_mode |= O_RDWR;
+      break;
+   }
+
+   /* Allocate the (FILE) before we do anything irreversable */
+   if (fp == 0)
+   {
+      nfp = malloc(sizeof(FILE));
+      if (nfp == 0)
+	 return 0;
+   }
+
+   /* Open the file itself */
+   if (fname)
+      fd = open(fname, open_mode, 0666);
+   if (fd < 0)			/* Grrrr */
+   {
+      if (nfp)
+	 free(nfp);
+      if (fp)
+      {
+	 fp->mode |= fopen_mode;
+	 fclose(fp);			/* Deallocate if required */
+      }
+      return 0;
+   }
+
+   /* If this isn't freopen create a (FILE) and buffer for it */
+   if (fp == 0)
+   {
+      fp = nfp;
+      fp->next = __IO_list;
+      __IO_list = fp;
+
+      fp->mode = __MODE_FREEFIL;
+      if( isatty(fd) )
+      {
+	 fp->mode |= _IOLBF;
+#if __MODE_IOTRAN && !O_BINARY
+	 if( do_iosense ) fopen_mode |= __MODE_IOTRAN;
+#endif
+      }
+      else
+	 fp->mode |= _IOFBF;
+      fp->bufstart = malloc(BUFSIZ);
+      if (fp->bufstart == 0)	/* Oops, no mem */
+      {				/* Humm, full buffering with a two(!) byte
+				 * buffer. */
+	 fp->bufstart = fp->unbuf;
+	 fp->bufend = fp->unbuf + sizeof(fp->unbuf);
+      }
+      else
+      {
+	 fp->bufend = fp->bufstart + BUFSIZ;
+	 fp->mode |= __MODE_FREEBUF;
+      }
+   }
+
+   /* Ok, file's ready clear the buffer and save important bits */
+   fp->bufpos = fp->bufread = fp->bufwrite = fp->bufstart;
+   fp->mode |= fopen_mode;
+   fp->fd = fd;
+
+   return fp;
+}
+#endif
+
+#ifdef L_fclose
+int
+fclose(fp)
+FILE *fp;
+{
+   int   rv = 0;
+
+   if (fp == 0)
+   {
+      errno = EINVAL;
+      return EOF;
+   }
+   if (fp->fd != -1)
+   {
+      if (fflush(fp))
+	 return EOF;
+
+      if (close(fp->fd))
+	 rv = EOF;
+      fp->fd = -1;
+   }
+
+   if (fp->mode & __MODE_FREEBUF)
+   {
+      free(fp->bufstart);
+      fp->mode &= ~__MODE_FREEBUF;
+      fp->bufstart = fp->bufend = 0;
+   }
+
+   if (fp->mode & __MODE_FREEFIL)
+   {
+      FILE *prev = 0, *ptr;
+      fp->mode = 0;
+
+      for (ptr = __IO_list; ptr && ptr != fp; ptr = ptr->next)
+	 ;
+      if (ptr == fp)
+      {
+	 if (prev == 0)
+	    __IO_list = fp->next;
+	 else
+	    prev->next = fp->next;
+      }
+      free(fp);
+   }
+   else
+      fp->mode = 0;
+
+   return rv;
+}
+#endif
+
+#ifdef L_setbuffer
+void
+setbuffer(fp, buf, size)
+FILE * fp;
+char * buf;
+int size;
+{
+   fflush(fp);
+   if( fp->mode & __MODE_FREEBUF ) free(fp->bufstart);
+   fp->mode &= ~(__MODE_FREEBUF|__MODE_BUF);
+
+   if( buf == 0 )
+   {
+      fp->bufstart = fp->unbuf;
+      fp->bufend = fp->unbuf + sizeof(fp->unbuf);
+      fp->mode |= _IONBF;
+   }
+   else
+   {
+      fp->bufstart = buf;
+      fp->bufend = buf+size;
+      fp->mode |= _IOFBF;
+   }
+   fp->bufpos = fp->bufread = fp->bufwrite = fp->bufstart;
+}
+#endif
+
+#ifdef L_setvbuf
+int setvbuf(fp, buf, mode, size)
+FILE * fp;
+char * buf;
+int mode;
+size_t size;
+{
+   int rv = 0;
+   fflush(fp);
+   if( fp->mode & __MODE_FREEBUF ) free(fp->bufstart);
+   fp->mode &= ~(__MODE_FREEBUF|__MODE_BUF);
+   fp->bufstart = fp->unbuf;
+   fp->bufend = fp->unbuf + sizeof(fp->unbuf);
+   fp->mode |= _IONBF;
+
+   if( mode == _IOFBF || mode == _IOLBF )
+   {
+      if( size <= 0  ) size = BUFSIZ;
+      if( buf == 0 )
+      {
+         if( (buf = malloc(size)) != 0 )
+	    fp->mode |= __MODE_FREEBUF;
+         else rv = EOF;
+      }
+      if( buf )
+      {
+         fp->bufstart = buf;
+         fp->bufend = buf+size;
+         fp->mode &= ~__MODE_BUF;
+         fp->mode |= mode;
+      }
+   }
+   fp->bufpos = fp->bufread = fp->bufwrite = fp->bufstart;
+   return rv;
+}
+#endif
+
+#ifdef L_ungetc
+int
+ungetc(c, fp)
+int c;
+FILE *fp;
+{
+   if (fp->mode & __MODE_WRITING)
+      fflush(fp);
+
+   /* Can't read or there's been an error then return EOF */
+   if ((fp->mode & (__MODE_READ | __MODE_ERR)) != __MODE_READ)
+      return EOF;
+
+   /* Can't do fast fseeks */
+   fp->mode |= __MODE_UNGOT;
+
+   if( fp->bufpos > fp->bufstart )
+      return *--fp->bufpos = (unsigned char) c;
+   else if( fp->bufread == fp->bufstart )
+      return *fp->bufread++ = (unsigned char) c;
+   else
+      return EOF;
+}
+#endif
+
diff --git a/libc/stdio/stdio.h b/libc/stdio/stdio.h
new file mode 100644
index 0000000..fd10923
--- /dev/null
+++ b/libc/stdio/stdio.h
@@ -0,0 +1,129 @@
+
+#ifndef __STDIO_H
+#define __STDIO_H
+
+#include <features.h>
+#include <sys/types.h>
+
+#ifndef SEEK_SET
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+#endif
+
+#define _IOFBF		0x00	/* full buffering */
+#define _IOLBF		0x01	/* line buffering */
+#define _IONBF		0x02	/* no buffering */
+#define __MODE_BUF	0x03	/* Modal buffering dependent on isatty */
+
+#define __MODE_FREEBUF	0x04	/* Buffer allocated with malloc, can free */
+#define __MODE_FREEFIL	0x08	/* FILE allocated with malloc, can free */
+
+#define __MODE_READ	0x10	/* Opened in read only */
+#define __MODE_WRITE	0x20	/* Opened in write only */
+#define __MODE_RDWR	0x30	/* Opened in read/write */
+
+#define __MODE_READING	0x40	/* Buffer has pending read data */
+#define __MODE_WRITING	0x80	/* Buffer has pending write data */
+
+#define __MODE_EOF	0x100	/* EOF status */
+#define __MODE_ERR	0x200	/* Error status */
+#define __MODE_UNGOT	0x400	/* Buffer has been polluted by ungetc */
+
+#ifdef __MSDOS__
+#define __MODE_IOTRAN	0x1000	/* MSDOS nl <-> cr,nl translation */
+#else
+#define __MODE_IOTRAN	0
+#endif
+
+/* when you add or change fields here, be sure to change the initialization
+ * in stdio_init and fopen */
+struct __stdio_file {
+  unsigned char *bufpos;   /* the next byte to write to or read from */
+  unsigned char *bufread;  /* the end of data returned by last read() */
+  unsigned char *bufwrite; /* highest address writable by macro */
+  unsigned char *bufstart; /* the start of the buffer */
+  unsigned char *bufend;   /* the end of the buffer; ie the byte after the last
+                              malloc()ed byte */
+
+  int fd; /* the file descriptor associated with the stream */
+  int mode;
+
+  char unbuf[8];	   /* The buffer for 'unbuffered' streams */
+
+  struct __stdio_file * next;
+};
+
+#define EOF	(-1)
+#ifndef NULL
+#define NULL	((void*)0)
+#endif
+
+typedef struct __stdio_file FILE;
+
+#ifdef __AS386_16__
+#define BUFSIZ	(256)
+#else
+#define BUFSIZ	(2048)
+#endif
+
+extern FILE stdin[1];
+extern FILE stdout[1];
+extern FILE stderr[1];
+
+#ifdef __MSDOS__
+#define putc(c, fp) fputc(c, fp)
+#define getc(fp) fgetc(fp)
+#else
+#define putc(c, stream)	\
+    (((stream)->bufpos >= (stream)->bufwrite) ? fputc((c), (stream))	\
+                          : (unsigned char) (*(stream)->bufpos++ = (c))	)
+
+#define getc(stream)	\
+  (((stream)->bufpos >= (stream)->bufread) ? fgetc(stream):		\
+    (*(stream)->bufpos++))
+#endif
+
+#define putchar(c) putc((c), stdout)  
+#define getchar() getc(stdin)
+
+#define ferror(fp)	(((fp)->mode&__MODE_ERR) != 0)
+#define feof(fp)   	(((fp)->mode&__MODE_EOF) != 0)
+#define clearerr(fp)	((fp)->mode &= ~(__MODE_EOF|__MODE_ERR),0)
+#define fileno(fp)	((fp)->fd)
+
+/* declare functions; not like it makes much difference without ANSI */
+/* RDB: The return values _are_ important, especially if we ever use
+        8086 'large' model
+ */
+
+/* These two call malloc */
+#define setlinebuf(__fp)             setvbuf((__fp), (char*)0, _IOLBF, 0)
+extern int setvbuf __P((FILE*, char*, int, size_t));
+
+/* These don't */
+#define setbuf(__fp, __buf) setbuffer((__fp), (__buf), BUFSIZ)
+extern void setbuffer __P((FILE*, char*, int));
+
+extern int fgetc __P((FILE*));
+extern int fputc __P((int, FILE*));
+
+extern int fclose __P((FILE*));
+extern int fflush __P((FILE*));
+extern char *fgets __P((char*, size_t, FILE*));
+extern FILE *__fopen __P((char*, int, FILE*, char*));
+
+#define fopen(__file, __mode)         __fopen((__file), -1, (FILE*)0, (__mode))
+#define freopen(__file, __mode, __fp) __fopen((__file), -1, (__fp), (__mode))
+#define fdopen(__file, __mode)  __fopen((char*)0, (__file), (FILE*)0, (__mode))
+
+extern int fputs __P((char*, FILE*));
+extern int puts __P((char*));
+
+extern int printf __P ((__const char*, ...));
+extern int fprintf __P ((FILE*, __const char*, ...));
+extern int sprintf __P ((char*, __const char*, ...));
+
+#define stdio_pending(fp) ((fp)->bufread>(fp)->bufpos)
+
+#endif /* __STDIO_H */