X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/736a6a291cf0fc9ab9410f300174a70e868e4122..e72b18a9bd9f89847e49e87c1159c74d7bf0fbf3:/rsync.h diff --git a/rsync.h b/rsync.h index 72176449..d897b3d6 100644 --- a/rsync.h +++ b/rsync.h @@ -26,7 +26,8 @@ #define RSYNC_RSH_ENV "RSYNC_RSH" #define RSYNC_NAME "rsync" -#define RSYNCD_CONF "/etc/rsyncd.conf" +#define RSYNCD_SYSCONF "/etc/rsyncd.conf" +#define RSYNCD_USERCONF "rsyncd.conf" #define DEFAULT_LOCK_FILE "/var/run/rsyncd.lock" #define URL_PREFIX "rsync://" @@ -56,13 +57,19 @@ * people writing them to make sure that they don't send us anything * we won't understand. * + * Interoperation with old but supported protocol versions + * should cause a warning to be printed. At a future date + * the old protocol will become the minimum and + * compatibility code removed. + * * 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 OLD_PROTOCOL_VERSION 20 +#define MAX_PROTOCOL_VERSION 40 #define RSYNC_PORT 873 @@ -85,11 +92,9 @@ enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 }; #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 @@ -185,6 +190,10 @@ enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 }; #include #endif +#ifdef HAVE_MALLOC_H +# include +#endif + /* these are needed for the uid/gid mapping code */ #include #include @@ -215,6 +224,8 @@ enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 }; #include #endif +#include + #define BOOL int @@ -268,12 +279,50 @@ enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 }; #define NO_INT64 #endif -/* We want to manipulate 64-bit inums. On some systems - * STRUCT_STAT.st_ino can be bigger than an ino_t depending on the - * combination of largefile feature macros. Rather than try to guess, - * we just internally store them in the largest know type. Hopefully - * it's enough. */ -#define INO_T int64 +#if (SIZEOF_LONG == 8) +#define uint64 unsigned long +#elif (SIZEOF_INT == 8) +#define uint64 unsigned int +#elif HAVE_LONGLONG +#define uint64 unsigned long long +#else +/* As long as it gets... */ +#define uint64 unsigned off_t +#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 uint64 +#define DEV64_T uint64 #ifndef MIN #define MIN(a,b) ((a)<(b)?(a):(b)) @@ -295,18 +344,30 @@ enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3 }; #define MAXPATHLEN 1024 #endif +#ifndef NAME_MAX +#define NAME_MAX 255 +#endif + #ifndef INADDR_NONE #define INADDR_NONE 0xffffffff #endif +#ifndef IN_LOOPBACKNET +#define IN_LOOPBACKNET 127 +#endif + struct file_struct { unsigned flags; 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; @@ -334,19 +395,19 @@ struct file_list { }; 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 { @@ -387,11 +448,12 @@ static inline int flist_up(struct file_list *flist, int i) } #include "byteorder.h" -#include "proto.h" #include "lib/mdfour.h" #include "lib/permstring.h" #include "lib/addrinfo.h" +#include "proto.h" + /* We have replacement versions of these if they're missing. */ #ifndef HAVE_ASPRINTF int asprintf(char **ptr, const char *format, ...); @@ -427,6 +489,9 @@ extern int errno; #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 @@ -453,6 +518,16 @@ extern int errno; #define S_IWUSR 0200 #endif +#ifndef ACCESSPERMS +#define ACCESSPERMS 0777 +#endif + +#ifndef S_ISVTX +#define S_ISVTX 0 +#endif + +#define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS) + #ifndef _S_IFMT #define _S_IFMT 0170000 #endif @@ -516,9 +591,6 @@ extern int errno; #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 */ @@ -527,25 +599,34 @@ extern int errno; /* handler for null strings in printf format */ #define NS(s) ((s)?(s):"") +#if !defined(__GNUC__) || defined(APPLE) +/* Apparently the OS X port of gcc gags on __attribute__. + * + * */ +#define __attribute__(x) + +#endif + + /* use magic gcc attributes to catch format errors */ void rprintf(enum logcode , const char *, ...) -#ifdef __GNUC__ - __attribute__ ((format (printf, 2, 3))) -#endif + __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 *, ...) -#ifdef __GNUC__ - __attribute__ ((format (printf, 3, 4))) -#endif + __attribute__((format (printf, 3, 4))) ; #ifdef REPLACE_INET_NTOA #define inet_ntoa rep_inet_ntoa #endif +/* Make sure that the O_BINARY flag is defined. */ +#ifndef O_BINARY +#define O_BINARY 0 +#endif #ifndef HAVE_STRLCPY size_t strlcpy(char *d, const char *s, size_t bufsize); @@ -570,5 +651,13 @@ 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); +int inet_pton(int af, const char *src, void *dst); +#endif + +#ifdef MAINTAINER_MODE +const char *get_panic_action(void); #endif + +#define UNUSED(x) x __attribute__((__unused__)) + +extern const char *io_write_phase, *io_read_phase;