Collect input.

+/* GNU mailutils - a suite of utilities for electronic mail
+   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+
+   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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include "guimb.h"
+
+char *temp_filename;
+FILE *temp_file;
+mailbox_t mbox;
+size_t nmesg;
+size_t current_mesg_no;
+message_t current_message;
+
+/* Open temporary file for collecting incoming message */
+void
+collect_open_mailbox_file ()
+{
+  int fd;
+
+  /* Create input mailbox */
+  fd = util_tempfile (&temp_filename);
+  if (fd == -1)
+    exit (1);
+
+  temp_file = fdopen (fd, "w");
+  if (!temp_file)
+    {
+      util_error ("fdopen: %s", strerror (errno));
+      close (fd);
+      exit (1);
+    }
+}
+
+/* Append contents of file `name' to the temporary file */
+int
+collect_append_file (char *name)
+{
+  char *buf = NULL;
+  size_t n = 0;
+  FILE *fp;
+
+  if (strcmp (name, "-") == 0)
+    fp = stdin;
+  else
+    {
+      fp = fopen (name, "r");
+      if (!fp)
+	{
+	  util_error ("can't open input file %s: %s", name, strerror (errno));
+	  return -1;
+	}
+    }
+
+  /* Copy the contents of the file */
+  while (getline (&buf, &n, fp) > 0)
+    fprintf (temp_file, "%s", buf);
+
+  free (buf);
+  fclose (fp);
+  return 0;
+}
+
+/* Close the temporary, and reopen it as a mailbox. */
+void
+collect_create_mailbox ()
+{
+  size_t count;
+
+  fclose (temp_file);
+
+  if (mailbox_create (&mbox, temp_filename) != 0
+      || mailbox_open (mbox, MU_STREAM_READ) != 0)
+    {
+      util_error ("can't create temp mailbox %s: %s",
+		  temp_filename, strerror (errno));
+      unlink (temp_filename);
+      exit (1);
+    }
+
+  /* Suck in the messages */
+  mailbox_messages_count (mbox, &nmesg);
+
+  if (nmesg == 0)
+    {
+      util_error ("input format not recognized");
+      exit (1);
+    }
+}
+
+/* Close the temporary mailbox and unlink the file associated with it */
+void
+collect_drop_mailbox ()
+{
+  mailbox_close (mbox);
+  mailbox_destroy (&mbox);
+  unlink (temp_filename);
+  free (temp_filename);
+}