Added new files resulting from directory restructuring.

[pspp-builds.git] / src / data / make-file.c

diff --git a/src/data/make-file.c b/src/data/make-file.c
new file mode 100644 (file)
index 0000000..312f9ff
--- /dev/null
+++ b/src/data/make-file.c
@@ -0,0 +1,108 @@
+/* PSPP - computes sample statistics.
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   Written by Ben Pfaff <blp@gnu.org>.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA. */
+
+#include <config.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <stdio.h>
+#include "filename.h"
+#include "make-file.h"
+#include "message.h"
+#include "alloc.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+/* Creates a temporary file and stores its name in *FILENAME and
+   a file descriptor for it in *FD.  Returns success.  Caller is
+   responsible for freeing *FILENAME. */
+int
+make_temp_file (int *fd, char **filename)
+{
+  const char *parent_dir;
+
+  assert (filename != NULL);
+  assert (fd != NULL);
+
+  if (getenv ("TMPDIR") != NULL)
+    parent_dir = getenv ("TMPDIR");
+  else
+    parent_dir = P_tmpdir;
+
+  *filename = xmalloc (strlen (parent_dir) + 32);
+  sprintf (*filename, "%s%cpsppXXXXXX", parent_dir, DIR_SEPARATOR);
+  *fd = mkstemp (*filename);
+  if (*fd < 0)
+    {
+      msg (ME, _("%s: Creating temporary file: %s."),
+           *filename, strerror (errno));
+      free (*filename);
+      *filename = NULL;
+      return 0;
+    }
+  return 1;
+}
+
+
+/* Creates a temporary file and stores its name in *FILENAME and
+   a file stream for it in *FP.  Returns success.  Caller is
+   responsible for freeing *FILENAME and for closing *FP */
+int
+make_unique_file_stream (FILE **fp, char **filename)
+{
+  static int serial = 0;
+  const char *parent_dir;
+
+
+  /* FIXME: 
+     Need to check for pre-existing file name.
+     Need also to pass in the directory instead of using /tmp 
+  */
+
+  assert (filename != NULL);
+  assert (fp != NULL);
+
+  if (getenv ("TMPDIR") != NULL)
+    parent_dir = getenv ("TMPDIR");
+  else
+    parent_dir = P_tmpdir;
+
+  *filename = xmalloc (strlen (parent_dir) + 32);
+
+
+  sprintf (*filename, "%s%cpspp%d.png", parent_dir, DIR_SEPARATOR, serial++);
+
+  *fp = fopen(*filename, "w");
+
+  if (! *fp )
+    {
+      msg (ME, _("%s: Creating file: %s."), *filename, strerror (errno));
+      free (*filename);
+      *filename = NULL;
+      return 0;
+    }
+
+  return 1;
+}
+
+
+
+