1 files changed, 60 insertions, 0 deletions
diff --git a/c/src/tests/psxtests/psxfile01/test_extend.c b/c/src/tests/psxtests/psxfile01/test_extend.c
new file mode 100644
index 0000000000..ae284aab46
--- /dev/null
+++ b/c/src/tests/psxtests/psxfile01/test_extend.c
@@ -0,0 +1,60 @@
+/*
+ *  A test support function which extends the file to the specified 
+ *  length.  This handles the implied open(), lseek(), write(), and close()
+ *  operations.
+ *
+ *  The defined behavior is a seek() followed by a write() extends the file
+ *  and zero fills the new length part.
+ *
+ *  $Id$
+ */
+
+#include <stdio.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <assert.h>
+
+/*
+ *  test_extend routine
+ */
+
+void test_extend(
+  char   *file,
+  off_t  offset
+)
+{
+  int   fd;
+  int   status;
+  char  c = 0;
+
+  fd = open( file, O_WRONLY );
+  if ( fd == -1 ) {
+    printf( "test_extend: open( %s ) failed : %s\n", file, strerror( errno ) );
+    exit( 0 );
+  }
+
+  status = lseek( fd, offset - 1, SEEK_SET );
+  assert( status != -1 );
+
+  status = write( fd, &c, 1 );
+  if ( status == -1 ) {
+    printf( "test_extend: write( %s ) failed : %s\n", file, strerror( errno ) );
+    exit( 0 );
+  }
+
+  if ( status != 1 ) {
+    printf( "test_extend: write( %s ) only wrote %d of %d bytes\n",
+            file, status, 1 );
+    exit( 0 );
+  }
+
+  status = close( fd );
+  assert( !status );
+}