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-rw-r--r--gcc/testsuite/ChangeLog4
-rw-r--r--gcc/testsuite/gfortran.dg/dev_null.f9011
-rw-r--r--libgfortran/ChangeLog6
-rw-r--r--libgfortran/io/unix.c6
4 files changed, 25 insertions, 2 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d2ee0ca..33a1e02 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2005-05-11 Bud Davis <bdavis@gfortran.org>
+
+ * gfortran.dg/dev_null.f90: New test.
+
2005-05-11 Richard Earnshaw <richard.earnshaw@arm.com>
* gcc.dg/arm-vfp1.c: Revert last change.
diff --git a/gcc/testsuite/gfortran.dg/dev_null.f90 b/gcc/testsuite/gfortran.dg/dev_null.f90
new file mode 100644
index 0000000..edf93db
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/dev_null.f90
@@ -0,0 +1,11 @@
+! { dg-do run }
+! pr19478 read from /dev/null
+! Thomas.Koenig@online.de
+ character*20 foo
+ open(10,file="/dev/null")
+ write(10,'(A)') "Hello"
+ rewind(10)
+ read(10,'(A)',end=100) foo
+ call abort
+ 100 continue
+ end
diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index fa866a1..eded92ed 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,9 @@
+2005-05-11 Bud Davis <bdavis@gfortran.org>
+
+ PR fortran/19478
+ * io/unix.c (fd_truncate): update positions when ftruncate
+ fails (like writing to /dev/null).
+
2005-05-10 Francois-Xavier Coudert <coudert@clipper.ens.fr>
PR libfortran/21471
diff --git a/libgfortran/io/unix.c b/libgfortran/io/unix.c
index 865eb68..92eea53 100644
--- a/libgfortran/io/unix.c
+++ b/libgfortran/io/unix.c
@@ -515,13 +515,15 @@ fd_truncate (unix_stream * s)
#ifdef HAVE_FTRUNCATE
if (ftruncate (s->fd, s->logical_offset))
- return FAILURE;
#else
#ifdef HAVE_CHSIZE
if (chsize (s->fd, s->logical_offset))
- return FAILURE;
#endif
#endif
+ {
+ s->physical_offset = s->file_length = 0;
+ return FAILURE;
+ }
s->physical_offset = s->file_length = s->logical_offset;