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ar: enable deterministic mode by default

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Ar cannot handle UIDs with more than 6 digits, and storing the mtime,
uid, gid and mode provides little to negative value anyhow for ar's
uses. Turn on deterministic (-D) mode by default; it can be disabled by
the user with -U.

PR:		196929
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3190
This commit is contained in:
Ed Maste 2015-07-29 13:36:17 +00:00
parent 9d2332c9ee
commit fc964cbf4e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=286010
2 changed files with 3 additions and 0 deletions
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1
usr.bin/ar/ar.1
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@ -210,6 +210,7 @@ and 0644 instead of file mode from the members named by arguments
.Ar . .Ar .
This ensures that checksums on the resulting archives are reproducible This ensures that checksums on the resulting archives are reproducible
when member contents are identical. when member contents are identical.
This option is enabled by default.
If multiple If multiple
.Fl D .Fl D
and and

2
usr.bin/ar/ar.c
View File

@ -104,6 +104,8 @@ main(int argc, char **argv)
bsdar = &bsdar_storage; bsdar = &bsdar_storage;
memset(bsdar, 0, sizeof(*bsdar)); memset(bsdar, 0, sizeof(*bsdar));
/* Enable deterministic mode by default. */
bsdar->options |= AR_D;
if ((bsdar->progname = getprogname()) == NULL) if ((bsdar->progname = getprogname()) == NULL)
bsdar->progname = "ar"; bsdar->progname = "ar";