Cope on machines without INADDR_LOOPBACK.

[rsync/rsync.git] / rsync.h

diff --git a/rsync.h b/rsync.h
index e11b84a..da891c9 100644 (file)
--- a/rsync.h
+++ b/rsync.h
@@ -1,6 +1,7 @@
 /* 
-   Copyright (C) Andrew Tridgell 1996
+   Copyright (C) by Andrew Tridgell 1996, 2000
    Copyright (C) Paul Mackerras 1996
+   Copyright (C) 2001 by Martin Pool <mbp@samba.org>
    
    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
@@ -17,18 +18,22 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+#define False 0
+#define True 1
+
 #define BLOCK_SIZE 700
 #define RSYNC_RSH_ENV "RSYNC_RSH"
 
 #define RSYNC_NAME "rsync"
 #define RSYNCD_CONF "/etc/rsyncd.conf"
 
+#define DEFAULT_LOCK_FILE "/var/run/rsyncd.lock"
 #define URL_PREFIX "rsync://"
 
 #define BACKUP_SUFFIX "~"
 
 /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is
-   imcompatible with older versions :-( */
+   incompatible with older versions :-( */
 #define CHAR_OFFSET 0
 
 
@@ -43,8 +48,19 @@
 #define SAME_TIME (1<<7)
 
 /* update this if you make incompatible changes */
-#define PROTOCOL_VERSION 19
-#define MIN_PROTOCOL_VERSION 11
+#define PROTOCOL_VERSION 25
+
+/* 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
+ * people writing them to make sure that they don't send us anything
+ * we won't understand.
+ *
+ * There are two possible explanations for the limit at thirty: either
+ * to allow new major-rev versions that do not interoperate with us,
+ * and (more likely) so that we can detect an attempt to connect rsync
+ * to a non-rsync server, which is unlikely to begin by sending a byte
+ * between 15 and 30. */
+#define MIN_PROTOCOL_VERSION 15
 #define MAX_PROTOCOL_VERSION 30
 
 #define RSYNC_PORT 873
@@ -52,16 +68,17 @@
 #define SPARSE_WRITE_SIZE (1024)
 #define WRITE_SIZE (32*1024)
 #define CHUNK_SIZE (32*1024)
-#define MAX_MAP_SIZE (1*1024*1024)
+#define MAX_MAP_SIZE (256*1024)
 #define IO_BUFFER_SIZE (4092)
-#define MAX_READ_BUFFER (1024*1024)
 
 #define MAX_ARGS 1000
 
 #define MPLEX_BASE 7
-#define FERROR 1
-#define FINFO 2
-#define FLOG 3
+
+/* 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 };
 
 #include "errcode.h"
 
@@ -75,12 +92,6 @@
 
 #include <sys/types.h>
 
-#ifdef HAVE_GETOPT_LONG
-#include <getopt.h>
-#else
-#include "lib/getopt.h"
-#endif
-
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
@@ -148,11 +159,6 @@
 #endif
 #include <errno.h>
 
-#if defined(HAVE_MMAP) && defined(HAVE_MUNMAP)
-#include <sys/mman.h>
-#define USE_MMAP 1
-#endif
-
 #ifdef HAVE_UTIME_H
 #include <utime.h>
 #endif
@@ -261,9 +267,11 @@
 #endif
 
 #if HAVE_SHORT_INO_T
-#define INO_T uint32
+#  define INO_T uint32
+#elif HAVE_INO_T
+#  define INO_T ino_t
 #else
-#define INO_T ino_t
+#  define INO_T unsigned
 #endif
 
 #ifndef MIN
@@ -274,6 +282,10 @@
 #define MAX(a,b) ((a)>(b)?(a):(b))
 #endif
 
+#ifndef MAXHOSTNAMELEN
+#define MAXHOSTNAMELEN 256
+#endif
+
 /* the length of the md4 checksum */
 #define MD4_SUM_LENGTH 16
 #define SUM_LENGTH 16
@@ -303,10 +315,21 @@ struct file_struct {
        char *sum;
 };
 
+
+#define ARENA_SIZE     (32 * 1024)
+
+struct string_area {
+       char *base;
+       char *end;
+       char *current;
+       struct string_area *next;
+};
+
 struct file_list {
        int count;
        int malloced;
        struct file_struct **files;
+       struct string_area *string_area;
 };
 
 struct sum_buf {
@@ -326,15 +349,15 @@ struct sum_struct {
 };
 
 struct map_struct {
-       char *map,*p;
+       char *p;
        int fd,p_size,p_len;
-       OFF_T size, p_offset;
+       OFF_T file_size, p_offset, p_fd_offset;
 };
 
 struct exclude_struct {
-       char *orig;
        char *pattern;
        int regular_exp;
+       int fnmatch_flags;
        int include;
        int directory;
        int local;
@@ -454,23 +477,69 @@ extern int errno;
 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
 #endif
 
+/* work out what fcntl flag to use for non-blocking */
+#ifdef O_NONBLOCK
+# define NONBLOCK_FLAG O_NONBLOCK
+#elif defined(SYSV)
+# define NONBLOCK_FLAG O_NDELAY
+#else 
+# define NONBLOCK_FLAG FNDELAY
+#endif
+
+#ifndef INADDR_LOOPBACK
+#define INADDR_LOOPBACK 0x7f000001
+#endif
+
+#ifndef INADDR_NONE
+#define INADDR_NONE 0xffffffff
+#endif
 
 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode))
 
 #ifndef ACCESSPERMS
 #define ACCESSPERMS 0777
 #endif
+/* Initial mask on permissions given to temporary files.  Mask off setuid
+     bits and group access because of potential race-condition security
+     holes, and mask other access because mode 707 is bizarre */
+#define INITACCESSPERMS 0700
 
 /* handler for null strings in printf format */
 #define NS(s) ((s)?(s):"<NULL>")
 
 /* use magic gcc attributes to catch format errors */
- void rprintf(int , const char *, ...)
+ void rprintf(enum logcode , const char *, ...)
 #ifdef __GNUC__
      __attribute__ ((format (printf, 2, 3)))
 #endif
 ;
 
+/* This is just like rprintf, but it also tries to print some
+ * representation of the error code.  Normally errcode = errno. */
+void rsyserr(enum logcode, int, const char *, ...)
+#ifdef __GNUC__
+     __attribute__ ((format (printf, 3, 4)))
+#endif
+     ;
+
 #ifdef REPLACE_INET_NTOA
 #define inet_ntoa rep_inet_ntoa
 #endif
+
+
+#ifndef HAVE_STRLCPY
+size_t strlcpy(char *d, const char *s, size_t bufsize);
+#endif
+
+#ifndef HAVE_STRLCAT
+size_t strlcat(char *d, const char *s, size_t bufsize);
+#endif
+
+#ifndef WEXITSTATUS
+#define        WEXITSTATUS(stat)       ((int)(((stat)>>8)&0xFF))
+#endif
+
+#define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
+
+
+extern int verbose;