build: Rename most C files that contain underscore with dash.

This is just code motion.

Some files cannot be renamed.  Notably rpcgen input and output files
must not contain dash characters, else rpcgen breaks.

fish/prep-fs.c

@@ -0,0 +1,56 @@
+/* guestfish - the filesystem interactive shell
+ * Copyright (C) 2010 Red Hat 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 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 <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <libintl.h>
+
+#include "fish.h"
+#include "prepopts.h"
+
+void
+prep_prelaunch_fs (const char *filename, prep_data *data)
+{
+  if (alloc_disk (filename, data->params[1], 0, 1) == -1)
+    prep_error (data, filename, _("failed to allocate disk"));
+}
+
+void
+prep_postlaunch_fs (const char *filename, prep_data *data, const char *device)
+{
+  if (guestfs_part_disk (g, device, data->params[2]) == -1)
+    prep_error (data, filename, _("failed to partition disk: %s"),
+                guestfs_last_error (g));
+
+  char *part;
+  if (asprintf (&part, "%s1", device) == -1) {
+    perror ("asprintf");
+    exit (EXIT_FAILURE);
+  }
+
+  if (guestfs_mkfs (g, data->params[0], part) == -1)
+    prep_error (data, filename, _("failed to create filesystem (%s): %s"),
+                data->params[0], guestfs_last_error (g));
+
+  free (part);
+}