[packages] bash: import upstream 4.2 patch series

git-svn-id: svn://svn.openwrt.org/openwrt/packages@31746 3c298f89-4303-0410-b956-a3cf2f4a3e73

utils/bash/patches/122-upstream-bash42-022.patch

@@ -0,0 +1,46 @@
+			     BASH PATCH REPORT
+			     =================
+
+Bash-Release:	4.2
+Patch-ID:	bash42-022
+
+Bug-Reported-by:	Gregory Margo <gmargo@pacbell.net>
+Bug-Reference-ID:	<20110727174529.GA3333@pacbell.net>
+Bug-Reference-URL:	http://lists.gnu.org/archive/html/bug-bash/2011-07/msg00102.html
+
+Bug-Description:
+
+The return value from lseek is `off_t'.  This can cause corrupted return
+values when the file offset is greater than 2**31 - 1.
+
+Patch (apply with `patch -p0'):
+
+--- a/lib/sh/zread.c
++++ b/lib/sh/zread.c
+@@ -160,14 +160,13 @@ void
+ zsyncfd (fd)
+      int fd;
+ {
+-  off_t off;
+-  int r;
++  off_t off, r;
+ 
+   off = lused - lind;
+   r = 0;
+   if (off > 0)
+     r = lseek (fd, -off, SEEK_CUR);
+ 
+-  if (r >= 0)
++  if (r != -1)
+     lused = lind = 0;
+ }
+--- a/patchlevel.h
++++ b/patchlevel.h
+@@ -25,6 +25,6 @@
+    regexp `^#define[ 	]*PATCHLEVEL', since that's what support/mkversion.sh
+    looks for to find the patch level (for the sccs version string). */
+ 
+-#define PATCHLEVEL 21
++#define PATCHLEVEL 22
+ 
+ #endif /* _PATCHLEVEL_H_ */