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stdio/FreeBSD/makebuf.c.patch /dev/null Libc-583
--- /dev/null
+++ Libc/Libc-583/stdio/FreeBSD/makebuf.c.patch
@@ -0,0 +1,44 @@
+--- makebuf.c.orig	2008-08-28 17:18:09.000000000 -0700
++++ makebuf.c	2008-09-04 14:20:48.000000000 -0700
+@@ -49,6 +49,9 @@ __FBSDID("$FreeBSD: src/lib/libc/stdio/m
+ #include "local.h"
+ #include "un-namespace.h"
+ 
++#define MAXBUFSIZE	(1 << 16)
++#define TTYBUFSIZE	4096
++
+ /*
+  * Allocate a file buffer, or switch to unbuffered I/O.
+  * Per the ANSI C standard, ALL tty devices default to line buffered.
+@@ -71,6 +74,12 @@ __smakebuf(fp)
+ 		return;
+ 	}
+ 	flags = __swhatbuf(fp, &size, &couldbetty);
++	if (couldbetty && isatty(fp->_file)) {
++		flags |= __SLBF;
++		/* st_blksize for ttys is 128K, so make it more reasonable */
++		if (size > TTYBUFSIZE)
++			fp->_blksize = size = TTYBUFSIZE;
++	}
+ 	if ((p = malloc(size)) == NULL) {
+ 		fp->_flags |= __SNBF;
+ 		fp->_bf._base = fp->_p = fp->_nbuf;
+@@ -81,8 +90,6 @@ __smakebuf(fp)
+ 	flags |= __SMBF;
+ 	fp->_bf._base = fp->_p = p;
+ 	fp->_bf._size = size;
+-	if (couldbetty && isatty(fp->_file))
+-		flags |= __SLBF;
+ 	fp->_flags |= flags;
+ }
+ 
+@@ -115,8 +122,7 @@ __swhatbuf(fp, bufsize, couldbetty)
+ 	 * __sseek is mainly paranoia.)  It is safe to set _blksize
+ 	 * unconditionally; it will only be used if __SOPT is also set.
+ 	 */
+-	*bufsize = st.st_blksize;
+-	fp->_blksize = st.st_blksize;
++	fp->_blksize = *bufsize = st.st_blksize > MAXBUFSIZE ? MAXBUFSIZE : st.st_blksize;
+ 	return ((st.st_mode & S_IFMT) == S_IFREG && fp->_seek == __sseek ?
+ 	    __SOPT : __SNPT);
+ }