1librsync(3) Library Functions Manual librsync(3)
2
6 librsync - library for delta compression of streams
7
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include <librsync.h>
12 cc ... -lrsync
14
17 The librsync library implements network delta-compression of streams
18 and files. The algorithm is similar to that used in the rsync(1) and
19 xdelta(2) programs, but specialized for transfer of arbitrary-length
20 octet streams. Unlike most diff programs, librsync does not require
21 access to both of the files on the same machine, but rather only a
22 short ``signature'' of the old file and the complete contents of the
23 new file.
24 The canonical use of librsync is in the rproxy(8) reference implementa‐
26 tion of the rsync proposed extension to HTTP. It may be useful to
27 other programs which wish to do delta-compression in HTTP, or within
28 their own protocol. There are HTTP-specific utility functions within
29 librsync, but they need not be used.
30 A number of tools such as rdiff(1) provide command-line and scriptable
32 access to rsync functions.
33
35 rdiff(1)
36 rdiff and librsync Manual
38 http://rproxy.sourceforge.net/ or http://linuxcare.com.au/rproxy/.
40 draft-pool-rsync
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44 The rsync protocol is still evolving. There may be bugs in the imple‐
45 mentation. The interface may change in the future, but it is becoming
46 more stable.
47 Many routines will panic in case of error rather than returning an
49 error code to the caller. Patches to fix this are welcome, but at the
50 current state of development aborting seems as useful as trusting to
51 possibly-incomplete checking in the client.
52
54 Martin Pool <mbp@sourcefrog.net>, with Andrew Tridgell
55 <tridge@samba.org>.
56 rdiff development has been supported by Linuxcare, Inc and VA Linux
58 Systems.
59Martin Pool $Date$ librsync(3)