src/usr.bin/cmp, branch release/13.1.0FreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=release%2F13.1.02021-10-23T19:01:00Zcmp: initialize limit to avoid stack garbage limits2021-10-23T19:01:00ZKyle Evanskevans@FreeBSD.org2021-10-21T16:30:55Zurn:sha1:b6aec78847501c4f7a79552651991e0842ecaec3
Pointy hat: kevans
Fixes: 4e380e847460 ("cmp: add -n, --bytes to limit number of bytes [...]")
Sponsored by: Klara, Inc.
(cherry picked from commit f1f7f31366e5830f4f5b96c6394a0b91475744f4)
cmp: add -b, --print-bytes2021-10-03T05:15:12ZKyle Evanskevans@FreeBSD.org2021-09-23T05:46:30Zurn:sha1:6a1ef178d86a62a5377496ade866ea31bbfc6ec0
This is compatible with GNU cmp.
Reviewed by: bapt, markj (earlier version)
Sponsored by: Klara, Inc.
(cherry picked from commit f66b9b40f403f7c30fec3c4ceed93c6e8fafa8ac)
cmp: add -i, --ignore-initial, an alternative to skip1/skip2 args2021-10-03T05:15:08ZKyle Evanskevans@FreeBSD.org2021-09-23T05:43:32Zurn:sha1:0ab72f80ab69888e69821e996d52180f02158105
This is compatible with GNU cmp.
Reviewed by: markj
Sponsored by: Klara, Inc.
(cherry picked from commit 8d546b6832eea031f95f30eaec3232ec1256a281)
cmp: add -n, --bytes to limit number of bytes to compare2021-10-03T05:15:05ZKyle Evanskevans@FreeBSD.org2021-09-23T05:26:52Zurn:sha1:1159a71ad777dbcabd8d62afb8de2b85e0ee975b
This is compatible with GNU cmp.
Reviewed by: markj
Sponsored by: Klara, Inc.
(cherry picked from commit 4e380e8474609875c4cf5277b3755ac29079a8b5)
cmp: accept SI suffixes for skip1 and skip22021-10-03T05:15:01ZKyle Evanskevans@FreeBSD.org2021-09-23T05:17:07Zurn:sha1:5d3ac4ddf9db8a42968d31f11a8b18cdc198b4ff
This is compatible with GNU cmp.
Reviewed by: bapt (earlier version), markj, imp
Sponsored by: Klara, Inc.
(cherry picked from commit f6787614fd4db2a9d5e649af0e819852ebd5a19d)
cmp: fix -s (silent) when used with skip offsets2021-01-11T00:02:56ZEd Masteemaste@FreeBSD.org2021-01-11T00:02:56Zurn:sha1:80445b7a3f738e0b0a33ee7a11905a275346a6de
-s causes cmp to print nothing for differing files, for use when only
the exit status is of interest.
-z compares the file size first, for regular files, and fails the
comparison early if they do not match.
Prior to this change -s implied -z as an optimization, but this is not
valid when file offsets are specified. Now, enable the -z optimization
for -s only if both skip arguments are not provided / 0.
Note that using -z with differing skip values will currently always
fail. We may want to compare size1 - skip1 with size2 - skip2 instaead,
and in any case the man page should be clarified.
PR: 252542
Fixes: 3e6902efc802ab57fc4e9bf798f2d271b152e7f9
Reported by: William Ahern
Reviewed by: markj
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D28071
cmp: use C99 bool for flags2021-01-11T00:02:55ZEd Masteemaste@FreeBSD.org2021-01-11T00:02:55Zurn:sha1:1f7661742de650bcb6b9124ee3da7e94c8650c4b
MFC after: 1 week
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D28072
cmp(1): Add EXAMPLES section2020-06-20T11:20:16ZFernando Apesteguíafernape@FreeBSD.org2020-06-20T11:20:16Zurn:sha1:1831993577db18d193e94269e337f6286536814e
Add a small number of examples depicting the use of -l, -z and byte offsets
Approved by: 0mp@
cmp(1): Add EXAMPLES section2020-06-16T15:54:59ZFernando Apesteguíafernape@FreeBSD.org2020-06-16T15:54:59Zurn:sha1:022ebaf5432d5a8112c7d75ab9d406176b3dfd39
Add simple examples showing the use of -l, -z, stdin and offsets
Approved by: bcr@
Differential Revision: https://reviews.freebsd.org/D25280
Drop "All rights reserved" from the files I own2019-03-11T22:23:56ZAlan Somersasomers@FreeBSD.org2019-03-11T22:23:56Zurn:sha1:809a8352dd5bb83dca991ff6c82e509208afad26
Also, add SPDX tags where needed.
MFC after: 2 weeks