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-rw-r--r--src/H5FDcore.c7
-rw-r--r--src/H5FDsec2.c2
2 files changed, 8 insertions, 1 deletions
diff --git a/src/H5FDcore.c b/src/H5FDcore.c
index 68a0655..cda7308 100644
--- a/src/H5FDcore.c
+++ b/src/H5FDcore.c
@@ -985,6 +985,13 @@ if(file->eof < new_eof)
/* Update backing store, if using it */
if(file->fd >= 0 && file->backing_store) {
+#ifdef H5_VMS
+ /* Reset seek offset to the beginning of the file, so that the file isn't
+ * re-extended later. This may happen on Open VMS. */
+ if(-1 == HDlseek(file->fd, 0, SEEK_SET))
+ HSYS_GOTO_ERROR(H5E_IO, H5E_SEEKERROR, FAIL, "unable to seek to proper position")
+#endif
+
if(-1 == HDftruncate(file->fd, (off_t)new_eof))
HSYS_GOTO_ERROR(H5E_IO, H5E_SEEKERROR, FAIL, "unable to extend file properly")
} /* end if */
diff --git a/src/H5FDsec2.c b/src/H5FDsec2.c
index 093624b..b35ea7d 100644
--- a/src/H5FDsec2.c
+++ b/src/H5FDsec2.c
@@ -888,7 +888,7 @@ HDfprintf(stderr, "%s: file->eof = %a, file->eoa = %a\n", FUNC, file->eof, file-
#ifdef H5_VMS
/* Reset seek offset to the beginning of the file, so that the file isn't
* re-extended later. This may happen on Open VMS. */
- if(HDlseek(file->fd, (file_offset_t)0, SEEK_SET) < 0)
+ if(-1 == HDlseek(file->fd, (file_offset_t)0, SEEK_SET))
HSYS_GOTO_ERROR(H5E_IO, H5E_SEEKERROR, FAIL, "unable to seek to proper position")
#endif