/*
- Copyright (C) Andrew Tridgell 1996
+ Copyright (C) by Andrew Tridgell 1996, 2000
Copyright (C) Paul Mackerras 1996
+ Copyright (C) 2001, 2002 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
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
#define SAME_TIME (1<<7)
/* update this if you make incompatible changes */
-#define PROTOCOL_VERSION 19
-#define MIN_PROTOCOL_VERSION 11
+#define PROTOCOL_VERSION 26
+
+/* 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
#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
+
+/* 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"
#include "config.h"
-#if HAVE_REMSH
-#define RSYNC_RSH "remsh"
-#else
-#define RSYNC_RSH "rsh"
-#endif
+/* 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. */
#include <sys/types.h>
+
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#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
#include "lib/fnmatch.h"
#endif
-#ifdef HAVE_GETOPT_LONG
-#include <getopt.h>
-#else
-#include "lib/getopt.h"
+#ifdef HAVE_GLOB_H
+#include <glob.h>
#endif
-#ifdef HAVE_GLOB
-#include <glob.h>
+#ifdef HAVE_MALLOC_H
+# include <malloc.h>
#endif
/* these are needed for the uid/gid mapping code */
#include <compat.h>
#endif
+#include <assert.h>
-#ifndef S_IFLNK
-#define S_IFLNK 0120000
-#endif
-
-#ifndef S_ISLNK
-#define S_ISLNK(mode) (((mode) & S_IFLNK) == S_IFLNK)
-#endif
#define BOOL int
#define int32 long
#elif (SIZEOF_SHORT == 4)
#define int32 short
+#else
+/* I hope this works */
+#define int32 int
+#define LARGE_INT32
#endif
#endif
#elif HAVE_LONGLONG
#define int64 long long
#else
+/* As long as it gets... */
#define int64 off_t
#define NO_INT64
#endif
+/* Starting from protocol version 26, we always use 64-bit
+ * ino_t and dev_t internally, even if this platform does not
+ * allow files to have 64-bit inums. That's because the
+ * receiver needs to find duplicate (dev,ino) tuples to detect
+ * hardlinks, and it might have files coming from a platform
+ * that has 64-bit inums.
+ *
+ * The only exception is if we're on a platform with no 64-bit type at
+ * all.
+ *
+ * Because we use read_longint() to get these off the wire, if you
+ * transfer devices or hardlinks with dev or inum > 2**32 to a machine
+ * with no 64-bit types then you will get an overflow error. Probably
+ * not many people have that combination of machines, and you can
+ * avoid it by not preserving hardlinks or not transferring device
+ * nodes. It's not clear that any other behaviour is better.
+ *
+ * Note that if you transfer devices from a 64-bit-devt machine (say,
+ * Solaris) to a 32-bit-devt machine (say, Linux-2.2/x86) then the
+ * device numbers will be truncated. But it's a kind of silly thing
+ * to do anyhow.
+ *
+ * FIXME: In future, we should probable split the device number into
+ * major/minor, and transfer the two parts as 32-bit ints. That gives
+ * you somewhat more of a chance that they'll come from a big machine
+ * to a little one in a useful way.
+ *
+ * FIXME: Really we need an unsigned type, and we perhaps ought to
+ * cope with platforms on which this is an unsigned int or even a
+ * struct. Later.
+ */
+#define INO64_T int64
+#define DEV64_T int64
+
#ifndef MIN
#define MIN(a,b) ((a)<(b)?(a):(b))
#endif
#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
time_t modtime;
OFF_T length;
mode_t mode;
- ino_t inode;
- dev_t dev;
- dev_t rdev;
+
+ 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;
char *basename;
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 {
- OFF_T offset; /* offset in file of this chunk */
- int len; /* length of chunk of file */
- int i; /* index of this chunk */
- uint32 sum1; /* simple checksum */
- char sum2[SUM_LENGTH]; /* checksum */
+ OFF_T offset; /* offset in file of this chunk */
+ int len; /* length of chunk of file */
+ int i; /* index of this chunk */
+ uint32 sum1; /* simple checksum */
+ char sum2[SUM_LENGTH]; /* checksum */
};
struct sum_struct {
- OFF_T flength; /* total file length */
- int count; /* how many chunks */
- int remainder; /* flength % block_length */
- int n; /* block_length */
- struct sum_buf *sums; /* points to info for each chunk */
+ OFF_T flength; /* total file length */
+ size_t count; /* how many chunks */
+ size_t remainder; /* flength % block_length */
+ size_t n; /* block_length */
+ struct sum_buf *sums; /* points to info for each chunk */
};
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;
}
#include "byteorder.h"
-#include "version.h"
+#include "lib/mdfour.h"
+#include "lib/permstring.h"
+#include "lib/addrinfo.h"
+
#include "proto.h"
-#include "md4.h"
+
+/* We have replacement versions of these if they're missing. */
+#ifndef HAVE_ASPRINTF
+int asprintf(char **ptr, const char *format, ...);
+#endif
+
+#ifndef HAVE_VASPRINTF
+int vasprintf(char **ptr, const char *format, va_list ap);
+#endif
+
+#if !defined(HAVE_VSNPRINTF) && !defined(HAVE_C99_VSNPRINTF)
+int vsnprintf (char *str, size_t count, const char *fmt, va_list args);
+#endif
+
+#if !defined(HAVE_SNPRINTF) && !defined(HAVE_C99_VSNPRINTF)
+int snprintf(char *str,size_t count,const char *fmt,...);
+#endif
+
#if !HAVE_STRERROR
extern char *sys_errlist[];
extern int errno;
#endif
-#ifndef HAVE_BCOPY
-#define bcopy(src,dest,n) memcpy(dest,src,n)
-#endif
-
-#ifndef HAVE_BZERO
-#define bzero(buf,n) memset(buf,0,n)
-#endif
-
#define SUPPORT_LINKS HAVE_READLINK
#define SUPPORT_HARD_LINKS HAVE_LINK
+/* This could be bad on systems which have no lchown and where chown
+ * follows symbollic links. On such systems it might be better not to
+ * try to chown symlinks at all. */
#ifndef HAVE_LCHOWN
#define lchown chown
#endif
#define S_IWUSR 0200
#endif
+#ifndef _S_IFMT
+#define _S_IFMT 0170000
+#endif
+
+#ifndef _S_IFLNK
+#define _S_IFLNK 0120000
+#endif
+
+#ifndef S_ISLNK
+#define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
+#endif
+
#ifndef S_ISBLK
#define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
#endif
#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>")
+
+#if !defined(__GNUC__) || defined(APPLE)
+/* Apparently the OS X port of gcc gags on __attribute__.
+ *
+ * <http://www.opensource.apple.com/bugs/X/gcc/2512150.html> */
+#define __attribute__(x)
+
+#endif
+
+
+/* use magic gcc attributes to catch format errors */
+ void rprintf(enum logcode , const char *, ...)
+ __attribute__((format (printf, 2, 3)))
+;
+
+/* 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 *, ...)
+ __attribute__((format (printf, 3, 4)))
+ ;
+
+#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;
+
+#ifndef HAVE_INET_NTOP
+const char *
+inet_ntop(int af, const void *src, char *dst, size_t size);
+#endif /* !HAVE_INET_NTOP */
+
+#ifndef HAVE_INET_PTON
+int isc_net_pton(int af, const char *src, void *dst);
+#endif
+
+#define UNUSED(x) x __attribute__((__unused__))
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff