X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/e2d22fee53d01043436ed7448caf6239134d201c..419896af4764f9050bcfabe6098c1b8ea84d4f43:/rsync.h

diff --git a/rsync.h b/rsync.h
index b1adc0c4..d62767a9 100644
--- a/rsync.h
+++ b/rsync.h
@@ -24,6 +24,7 @@
 
 #define BLOCK_SIZE 700
 #define RSYNC_RSH_ENV "RSYNC_RSH"
+#define RSYNC_RSH_IO_ENV "RSYNC_RSH_IO"
 
 #define RSYNC_NAME "rsync"
 #define RSYNCD_SYSCONF "/etc/rsyncd.conf"
@@ -41,16 +42,23 @@
 
 #define FLAG_DELETE (1<<0)
 #define SAME_MODE (1<<1)
-#define SAME_RDEV (1<<2)
+#define EXTENDED_FLAGS (1<<2)
+#define SAME_RDEV_pre28 EXTENDED_FLAGS /* Only use in protocols < 28 */
 #define SAME_UID (1<<3)
 #define SAME_GID (1<<4)
 #define SAME_DIR (1<<5)
 #define SAME_NAME SAME_DIR
 #define LONG_NAME (1<<6)
 #define SAME_TIME (1<<7)
+#define SAME_HIGH_RDEV (1<<8)
+#define HAS_INODE_DATA (1<<9)
+#define SAME_DEV (1<<10)
+
+/* What flags are relevant after the transfer of the flist is complete? */
+#define LIVE_FLAGS FLAG_DELETE
 
 /* update this if you make incompatible changes */
-#define PROTOCOL_VERSION 27
+#define PROTOCOL_VERSION 28
 
 /* We refuse to interoperate with versions that are not in this range.
  * Note that we assume we'll work with later versions: the onus is on
@@ -69,7 +77,7 @@
  * unlikely to begin by sending a byte between MIN_PROTOCL_VERSION and
  * MAX_PROTOCOL_VERSION. */
 
-#define MIN_PROTOCOL_VERSION 17
+#define MIN_PROTOCOL_VERSION 19
 #define OLD_PROTOCOL_VERSION 20
 #define MAX_PROTOCOL_VERSION 40
 
@@ -98,18 +106,27 @@
 #define ADD_INCLUDE 1
 #define ADD_EXCLUDE 0
 
-/* Log values.  I *think* what these mean is: FLOG goes to the server
- * logfile; FERROR and FINFO try to end up on the client, with
- * different levels of filtering. */
-enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 };
+#define FULL_FLUSH	1
+#define NORMAL_FLUSH	0
+
+/* Log-message categories.  FLOG is only used on the daemon side to
+ * output messages to the log file. */
+enum logcode { FERROR=1, FINFO=2, FLOG=3 };
+
+/* Messages types that are sent over the message channel.  The logcode
+ * values must all be present here with identical numbers. */
+enum msgcode {
+	MSG_DATA=0,	/* raw data on the multiplexed stream */
+	MSG_ERROR=FERROR, MSG_INFO=FINFO, MSG_LOG=FLOG, /* remote logging */
+	MSG_REDO=4,	/* reprocess indicated flist index */
+	MSG_DONE=5,	/* current phase is done */
+};
 
 #include "errcode.h"
 
 #include "config.h"
 
-/* The default RSYNC_RSH is always set in config.h, either to "remsh",
- * "rsh", or otherwise something specified by the user.  HAVE_REMSH
- * controls parameter munging for HP/UX, etc. */
+/* The default RSYNC_RSH is always set in config.h. */
 
 #include <sys/types.h>
 
@@ -363,28 +380,45 @@ enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 };
 #define IN_LOOPBACKNET 127
 #endif
 
-struct file_struct {
-	unsigned flags;
-	time_t modtime;
-	OFF_T length;
-	mode_t mode;
+#define GID_NONE (gid_t) -1
 
+struct hlink {
+	struct file_struct *head;
+	struct file_struct *next;
+};
+
+struct idev {
 	INO64_T inode;
-	/** Device this file lives upon */
 	DEV64_T dev;
+};
 
-	/** If this is a device node, the device number. */
-	DEV64_T rdev;
-	uid_t uid;
-	gid_t gid;
+#define F_DEV	link_u.idev->dev
+#define F_INODE	link_u.idev->inode
+
+#define F_HEAD	link_u.links->head
+#define F_NEXT	link_u.links->next
+
+struct file_struct {
+	time_t modtime;
+	OFF_T length;
+	mode_t mode;
+	union {
+		DEV64_T rdev;	/* The device number, if this is a device */
+		char *sum;	/* Only a normal file can have a checksum */
+		char *link;	/* Holds symlink string, if a symlink */
+	} u;
+	union {
+		struct idev *idev;
+		struct hlink *links;
+	} link_u;
 	char *basename;
 	char *dirname;
 	char *basedir;
-	char *link;
-	char *sum;
+	uid_t uid;
+	gid_t gid;
+	unsigned short flags;
 };
 
-
 #define ARENA_SIZE	(32 * 1024)
 
 struct string_area {
@@ -403,7 +437,7 @@ struct file_list {
 
 struct sum_buf {
 	OFF_T offset;		/**< offset in file of this chunk */
-	int len;		/**< length of chunk of file */
+	unsigned int len;	/**< length of chunk of file */
 	int i;			/**< index of this chunk */
 	uint32 sum1;	        /**< simple checksum */
 	char sum2[SUM_LENGTH];	/**< checksum  */
@@ -412,9 +446,9 @@ struct sum_buf {
 struct sum_struct {
 	OFF_T flength;		/**< total file length */
 	size_t count;		/**< how many chunks */
-	size_t remainder;	/**< flength % block_length */
-	size_t blength;		/**< block_length */
-	size_t s2length;	/**< sum2_length */
+	unsigned int blength;	/**< block_length */
+	unsigned int remainder;	/**< flength % block_length */
+	int s2length;		/**< sum2_length */
 	struct sum_buf *sums;	/**< points to info for each chunk */
 };
 
@@ -454,6 +488,7 @@ struct stats {
 	int flist_size;
 	int num_files;
 	int num_transferred_files;
+	int current_file_index;
 };