Starting on the CD-changer module

1 files changed, 107 insertions, 0 deletions

diff --git a/modules/mount_cdchanger.c b/modules/mount_cdchanger.c
new file mode 100644
index 0000000..0f4e271
--- /dev/null
+++ b/modules/mount_cdchanger.c
@@ -0,0 +1,107 @@
+#ident "$Id$"
+/* ----------------------------------------------------------------------- *
+ *   
+ *  mount_cdchanger.c - Mount different slots in a CD-changer
+ *
+ *   Copyright 1998 Transmeta Corporation - All Rights Reserved
+ *
+ *   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, Inc., 675 Mass Ave, Cambridge MA 02139,
+ *   USA; either version 2 of the License, or (at your option) any later
+ *   version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+#include <stdio.h>
+#include <malloc.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <string.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#define MODULE_MOUNT
+#include "automount.h"
+
+#define MODPREFIX "mount(cdchanger): "
+int mount_version = AUTOFS_MOUNT_VERSION; /* Required by protocol */
+
+#define FSTYPE "iso9660"	/* Real filesystem type */
+
+int mount_init(void **context)
+{
+  return 0;
+}
+
+int mount_mount(const char *root, const char *name, int name_len,
+		const char *what, const char *fstype, const char *options,
+		void *context)
+{
+  char *fullpath, *slotstr, *device, *colon;
+  int err;
+
+  fullpath = alloca(strlen(root)+name_len+2);
+  slotstr = alloca(strlen(what)+1);
+  if ( !fullpath || !slotstr ) {
+    syslog(LOG_ERR, MODPREFIX "alloca: %m");
+    return 1;
+  }
+  sprintf(fullpath, "%s/%s", root, name);
+
+  strcpy(slotstr, what);
+  colon = strchr(slotstr, ':');
+  if ( !colon || colon[1] != '/' ) {
+    syslog(LOG_ERR, MODPREFIX "entry %s -> %s not in slot:device format",
+	   fullpath, slotstr);
+    return 1;
+  }
+  *colon = '\0';
+  device = colon+1;
+
+
+
+  syslog(LOG_DEBUG, MODPREFIX "calling mkdir %s", fullpath);
+  if ( mkdir(fullpath, 0555) && errno != EEXIST ) {
+    syslog(LOG_NOTICE, MODPREFIX "mkdir %s failed: %m", name);
+    return 1;
+  }
+
+  syslog(LOG_DEBUG, MODPREFIX "calling fsck.ext2 -p %s", what);
+  err = spawnl(LOG_DEBUG, PATH_E2FSCK, PATH_E2FSCK, "-p", what, NULL);
+  if ( err & ~7 ) {
+    syslog(LOG_ERR, MODPREFIX "%s: filesystem needs repair, won't mount",
+	   what);
+    return 1;
+  }
+    
+  if ( options ) {
+    syslog(LOG_DEBUG, MODPREFIX "calling mount -t %s " SLOPPY "-o %s %s %s",
+	   fstype, options, what, fullpath);
+    err = spawnl(LOG_NOTICE, PATH_MOUNT, PATH_MOUNT, "-t", fstype,
+		 SLOPPYOPT "-o", options, what, fullpath, NULL);
+  } else {
+    syslog(LOG_DEBUG, MODPREFIX "calling mount -t %s %s %s",
+	   fstype, what, fullpath);
+      err = spawnl(LOG_NOTICE, PATH_MOUNT, PATH_MOUNT, "-t", fstype,
+		   what, fullpath, NULL);
+  }
+  if ( err ) {
+    rmdir(fullpath);
+    syslog(LOG_NOTICE, MODPREFIX "failed to mount %s (type %s) on %s",
+	   what, fstype, fullpath);
+    return 1;
+  } else {
+    syslog(LOG_DEBUG, MODPREFIX "mounted %s type %s on %s",
+	   what, fstype, fullpath);
+    return 0;
+  }
+}
+
+int mount_done(void *context)
+{
+  return 0;
+}