lang/gcc45

lang/gcc45/patches/patch-libcpp_files.c

@@ -0,0 +1,46 @@
+$NetBSD$
+
+--- libcpp/files.c.orig	Tue Sep 22 08:37:31 2009
++++ libcpp/files.c
+@@ -30,6 +30,7 @@ along with this program; see the file COPYING3.  If no
+ #include "obstack.h"
+ #include "hashtab.h"
+ #include "md5.h"
++#include "../gcc/defaults.h"
+ #include <dirent.h>
+ 
+ /* Variable length record files on VMS will have a stat size that includes
+@@ -219,20 +220,32 @@ static bool check_file_against_entries (cpp_reader *, 
+ static bool
+ open_file (_cpp_file *file)
+ {
++  const char *cpp_restricted;
++
++  GET_ENVIRONMENT(cpp_restricted, "CPP_RESTRICTED");
++
+   if (file->path[0] == '\0')
+     {
+       file->fd = 0;
+       set_stdin_to_binary_mode ();
+     }
+   else
+-    file->fd = open (file->path, O_RDONLY | O_NOCTTY | O_BINARY, 0666);
++    file->fd = open (file->path, O_RDONLY | O_NOCTTY | O_BINARY
++		     | (cpp_restricted != NULL) ? O_NONBLOCK : 0, 0666);
+ 
++
+   if (file->fd != -1)
+     {
+       if (fstat (file->fd, &file->st) == 0)
+ 	{
+ 	  if (!S_ISDIR (file->st.st_mode))
++	  if (cpp_restricted != NULL
++	      ? S_ISREG (file->st.st_mode) : !S_ISDIR (file->st.st_mode))
++
+ 	    {
++	      if (cpp_restricted)
++		fcntl(file->fd, F_SETFL,
++		      fcntl(file->fd, F_GETFL, 0) & ~O_NONBLOCK);
+ 	      file->err_no = 0;
+ 	      return true;
+ 	    }