2006-06-14 Jeff Johnston <jjohnstn@redhat.com>

        * libc/include/stdio.h: Add new reentrant I/O prototypes for
        read/write functions.  Change getc/putc macros to have reentrant underlying
        macros/functions.  This includes __sgetc_raw_r, __sgetc_r, and __sputc_r.
        * libc/stdio/fgetc.c: Fix and/or add reentrant version to call
        new reentrant I/O functions/macros for reading/writing.
        * libc/stdio/fgets.c: Ditto.
        * libc/stdio/fputc.c: Ditto.
        * libc/stdio/fputs.c: Ditto.
        * libc/stdio/fread.c: Ditto.
        * libc/stdio/fseek.c: Ditto.
        * libc/stdio64/fseeko64.c: Ditto.
        * libc/stdio/fwrite.c: Ditto.
        * libc/stdio/getc.c: Ditto.
        * libc/stdio/getc_u.c: Ditto.
        * libc/stdio/getchar.c: Ditto.
        * libc/stdio/getchar_u.c: Ditto.
        * libc/stdio/putc.c: Ditto.
        * libc/stdio/putc_u.c: Ditto.
        * libc/stdio/putchar.c: Ditto.
        * libc/stdio/puts.c: Ditto.
        * libc/stdio/vfprintf.c: Ditto.
        * libc/stdio/vfscanf.c: Ditto.
        * libc/stdio/fvwrite.c: Change __sfvwrite into reentrant __sfvwrite_r.
        Change all previous callers of __sfvwrite.  Set errno to EBADF and
        set error flag on if attempt is made to write to file that does not
        allow writing.
        * libc/stdio/fvwrite.h: Fix new reentrant prototypes.
        * libc/stdio/local.h: Ditto.
        * libc/stdio/refill.c: Turn __srefill into reentrant __srefill_r.
        Set errno to EBADF and the error flag on if attempt is made to
        read unreadable file.  Change all previous callers of __srefill.
        * libc/stdio/rget.c
        * libc/stdio/wbuf.c: Turn __swbuf into reentrant __swbuf_r.  Change
        all previous callers of __swbuf.
        * libc/sys/linux/machine/i386/huge_val.h: Ifdef out file contents since
        huge value macros are already defined correctly for i386 by <math.h>.

1 files changed, 8 insertions, 2 deletions

diff --git a/newlib/libc/stdio/refill.c b/newlib/libc/stdio/refill.c
index 639ce6e..047387e 100644
--- a/newlib/libc/stdio/refill.c
+++ b/newlib/libc/stdio/refill.c
@@ -19,6 +19,7 @@
 #include <_ansi.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <errno.h>
 #include "local.h"
 
 static int
@@ -36,7 +37,8 @@ _DEFUN(lflush, (fp),
  */
 
 int
-_DEFUN(__srefill, (fp),
+_DEFUN(__srefill_r, (ptr, fp),
+       struct _reent * ptr _AND
        register FILE * fp)
 {
   /* make sure stdio is set up */
@@ -55,7 +57,11 @@ _DEFUN(__srefill, (fp),
   if ((fp->_flags & __SRD) == 0)
     {
       if ((fp->_flags & __SRW) == 0)
-	return EOF;
+	{
+	  ptr->_errno = EBADF;
+	  fp->_flags |= __SERR;
+	  return EOF;
+	}
       /* switch to reading */
       if (fp->_flags & __SWR)
 	{