/* libguestfs - the guestfsd daemon
- * Copyright (C) 2009 Red Hat Inc.
+ * Copyright (C) 2009-2011 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
extern int autosync_umount;
extern const char *sysroot;
-extern int sysroot_len;
+extern size_t sysroot_len;
extern char *sysroot_path (const char *path);
extern int xread (int sock, void *buf, size_t len)
__attribute__((__warn_unused_result__));
+extern int add_string_nodup (char ***argv, int *size, int *alloc, char *str);
extern int add_string (char ***argv, int *size, int *alloc, const char *str);
extern size_t count_strings (char *const *argv);
extern void sort_strings (char **argv, int len);
/* Use this as a replacement for sync(2). */
extern int sync_disks (void);
+/*-- in ext2.c --*/
+extern int e2prog (char *name); /* Massive hack for RHEL 5. */
+
/*-- in lvm.c --*/
extern int lv_canonical (const char *device, char **ret);
+/*-- in lvm-filter.c --*/
+extern void copy_lvm (void);
+
/*-- in proto.c --*/
extern void main_loop (int sock) __attribute__((noreturn));
*/
extern void notify_progress (uint64_t position, uint64_t total);
+/* Pulse mode progress messages.
+ *
+ * Call pulse_mode_start to start sending progress messages.
+ *
+ * Call pulse_mode_end along the ordinary exit path (ie. before a
+ * reply message is sent).
+ *
+ * Call pulse_mode_cancel along all error paths *before* any reply is
+ * sent. pulse_mode_cancel does not modify errno, so it is safe to
+ * call it before reply_with_perror.
+ *
+ * Pulse mode and ordinary notify_progress must not be mixed.
+ */
+extern void pulse_mode_start (void);
+extern void pulse_mode_end (void);
+extern void pulse_mode_cancel (void);
+
+/* Return true iff the buffer is all zero bytes.
+ *
+ * Note that gcc is smart enough to optimize this properly:
+ * http://stackoverflow.com/questions/1493936/faster-means-of-checking-for-an-empty-buffer-in-c/1493989#1493989
+ */
+static inline int
+is_zero (const char *buffer, size_t size)
+{
+ size_t i;
+
+ for (i = 0; i < size; ++i) {
+ if (buffer[i] != 0)
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Helper for building up short lists of arguments. Your code has to
+ * define MAX_ARGS to a suitable value.
+ */
+#define ADD_ARG(argv,i,v) \
+ do { \
+ if ((i) >= MAX_ARGS) { \
+ fprintf (stderr, "%s: %d: internal error: exceeded MAX_ARGS (%zu) when constructing the command line\n", __FILE__, __LINE__, (size_t) MAX_ARGS); \
+ abort (); \
+ } \
+ (argv)[(i)++] = (v); \
+ } while (0)
+
/* Helper for functions that need a root filesystem mounted.
* NB. Cannot be used for FileIn functions.
*/