#ifndef GUESTFSD_DAEMON_H
#define GUESTFSD_DAEMON_H
+#include <stdio.h>
#include <stdarg.h>
#include <errno.h>
#include <unistd.h>
#define COMMAND_FLAG_FOLD_STDOUT_ON_STDERR 1
extern int commandf (char **stdoutput, char **stderror, int flags,
- const char *name, ...);
+ const char *name, ...);
extern int commandrf (char **stdoutput, char **stderror, int flags,
- const char *name, ...);
+ const char *name, ...);
extern int commandvf (char **stdoutput, char **stderror, int flags,
- char *const *argv);
+ char const *const *argv);
extern int commandrvf (char **stdoutput, char **stderror, int flags,
- char const* const *argv);
+ char const* const *argv);
extern char **split_lines (char *str);
+extern void trim (char *str);
+
extern int device_name_translation (char *device, const char *func);
+extern int prog_exists (const char *prog);
+
extern void udev_settle (void);
/* This just stops gcc from giving a warning about our custom
extern guestfs_int_lvm_vg_list *parse_command_line_vgs (void);
extern guestfs_int_lvm_lv_list *parse_command_line_lvs (void);
+/*-- in optgroups.c (auto-generated) --*/
+struct optgroup {
+ const char *group; /* Name of the optional group. */
+ int (*available) (void); /* Function to test availability. */
+};
+extern struct optgroup optgroups[];
+
+/*-- in sync.c --*/
+/* Use this as a replacement for sync(2). */
+extern int sync_disks (void);
+
/*-- in proto.c --*/
extern void main_loop (int sock) __attribute__((noreturn));
-/* ordinary daemon functions use these to indicate errors */
+/* ordinary daemon functions use these to indicate errors
+ * NB: you don't need to prefix the string with the current command,
+ * it is added automatically by the client-side RPC stubs.
+ */
extern void reply_with_error (const char *fs, ...)
__attribute__((format (printf,1,2)));
-extern void reply_with_perror (const char *fs, ...)
- __attribute__((format (printf,1,2)));
+extern void reply_with_perror_errno (int err, const char *fs, ...)
+ __attribute__((format (printf,2,3)));
+#define reply_with_perror(...) reply_with_perror_errno(errno, __VA_ARGS__)
/* daemon functions that receive files (FileIn) should call
* receive_file for each FileIn parameter.
*/
-typedef int (*receive_cb) (void *opaque, const void *buf, int len);
+typedef int (*receive_cb) (void *opaque, const void *buf, size_t len);
extern int receive_file (receive_cb cb, void *opaque);
/* daemon functions that receive files (FileIn) can call this
* to cancel incoming transfers (eg. if there is a local error),
- * but they MUST then call reply_with_error or reply_with_perror.
+ * but they MUST then call reply_with_*.
*/
extern void cancel_receive (void);
*/
#define RESOLVE_DEVICE(path,fail_stmt) \
do { \
- if (strncmp ((path), "/dev/", 5) != 0) { \
+ if (STRNEQLEN ((path), "/dev/", 5)) { \
reply_with_error ("%s: %s: expecting a device name", __func__, (path)); \
fail_stmt; \
} \
*/
#define REQUIRE_ROOT_OR_RESOLVE_DEVICE(path,fail_stmt) \
do { \
- if (strncmp ((path), "/dev/", 5) == 0) \
+ if (STREQLEN ((path), "/dev/", 5)) \
RESOLVE_DEVICE ((path), fail_stmt); \
else { \
NEED_ROOT (fail_stmt); \
} \
while (0)
+/* Marks functions which are not available.
+ * NB. Cannot be used for FileIn functions.
+ */
+#define NOT_AVAILABLE(errcode) \
+ do { \
+ reply_with_error ("%s: function not available", __func__); \
+ return (errcode); \
+ } \
+ while (0)
+
#ifndef __attribute__
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
# define __attribute__(x) /* empty */
# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#endif
+#define STREQ(a,b) (strcmp((a),(b)) == 0)
+#define STRCASEEQ(a,b) (strcasecmp((a),(b)) == 0)
+#define STRNEQ(a,b) (strcmp((a),(b)) != 0)
+#define STRCASENEQ(a,b) (strcasecmp((a),(b)) != 0)
+#define STREQLEN(a,b,n) (strncmp((a),(b),(n)) == 0)
+#define STRCASEEQLEN(a,b,n) (strncasecmp((a),(b),(n)) == 0)
+#define STRNEQLEN(a,b,n) (strncmp((a),(b),(n)) != 0)
+#define STRCASENEQLEN(a,b,n) (strncasecmp((a),(b),(n)) != 0)
+#define STRPREFIX(a,b) (strncmp((a),(b),strlen((b))) == 0)
+
#endif /* GUESTFSD_DAEMON_H */