re PR fortran/47296 (I/O Segfault when running out of file descriptors)

2011-01-14  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/47296
	* io/unix.c (unpack_filename): Return non-zero if the filename passed
	in is NULL.

From-SVN: r168832

diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index 6f116bd969eb554c017baef12ad9d7aaa7bc502b..4c2d185f91ddce2a651079643f43318c23f1e1af 100644 (file)
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,9 @@
+2011-01-14  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+       PR libgfortran/47296
+       * io/unix.c (unpack_filename): Return non-zero if the filename passed
+       in is NULL.
+
 2011-01-04  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 
        PR libgfortran/47154

diff --git a/libgfortran/io/unix.c b/libgfortran/io/unix.c
index a384f7bcc37d89e46c7553b6902fbb54112da1a0..e66560f5839b1c5ea75c9209b0cd74836e193a6b 100644 (file)
--- a/libgfortran/io/unix.c
+++ b/libgfortran/io/unix.c
@@ -1000,6 +1000,8 @@ unit_to_fd (int unit)
 int
 unpack_filename (char *cstring, const char *fstring, int len)
 {
+  if (fstring == NULL)
+    return 1;
   len = fstrlen (fstring, len);
   if (len >= PATH_MAX)
     return 1;