* cygtls.h (TP_NUM_C_BUFS): Raise to 50 to allow SYMLOOP_MAX recursions

	path_conv <-> normalize_posix_path, plus a bit of buffer.
	(TP_NUM_W_BUFS): Ditto.
	(class san): Change type of _c_cnt and _w_cnt to unsigned.
	* path.cc (normalize_posix_path): Guard recursion into path_conv
	against tmp_pathbuf overflow.  Generate normalized path in call to
	path_conv.  If the path is valid, replace dst with the normalized_path
	from path_conv call.  Add comment to explain why we're doing this.
	* tls_pbuf.cc (tls_pathbuf::destroy): Only free buffers until the
	first buffer pointer is NULL.
	(tmp_pathbuf::c_get): Simplify error message.
	(tmp_pathbuf::w_get): Ditto.
	* tls_pbuf.h (class tmp_pathbuf): Change type of c_buf_old and w_buf_old
	to unsigned.
	(tmp_pathbuf::check_usage): New inline method to check if we have
	enough tmp_pathbuf buffers left to call a function using tmp_pathbuf
	buffers.
	* tlsoffsets.h: Regenerate.
	* tlsoffsets64.h: Regenerate.

1 files changed, 4 insertions, 4 deletions

diff --git a/winsup/cygwin/cygtls.h b/winsup/cygwin/cygtls.h
index b76dd2441..32838744d 100644
--- a/winsup/cygwin/cygtls.h
+++ b/winsup/cygwin/cygtls.h
@@ -32,8 +32,8 @@ details. */
 
 #include "cygthread.h"
 
-#define TP_NUM_C_BUFS 10
-#define TP_NUM_W_BUFS 10
+#define TP_NUM_C_BUFS 50
+#define TP_NUM_W_BUFS 50
 
 #ifdef CYGTLS_HANDLE
 #include "thread.h"
@@ -290,8 +290,8 @@ class san
   san *_clemente;
   jmp_buf _context;
   int _errno;
-  int _c_cnt;
-  int _w_cnt;
+  unsigned _c_cnt;
+  unsigned _w_cnt;
 public:
   int setup (int myerrno = 0) __attribute__ ((always_inline))
   {