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MFC r281500,281540,281626:

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Sync with NetBSD:
 - Mention xz(1) in gzip(1).
 - Strip away path from header name when decompressing.
This commit is contained in:
Xin LI 2015-04-27 05:49:18 +00:00
parent e0d9e55807
commit 6dc1527c43
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/stable/10/; revision=282052
2 changed files with 25 additions and 12 deletions
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9
usr.bin/gzip/gzip.1
View File

@ -1,4 +1,4 @@
.\" $NetBSD: gzip.1,v 1.23 2014/03/18 18:20:45 riastradh Exp $
.\" $NetBSD: gzip.1,v 1.25 2015/04/06 21:41:17 wiz Exp $
.\"
.\" Copyright (c) 1997, 2003, 2004 Matthew R. Green
.\" All rights reserved.
@ -25,7 +25,7 @@
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.Dd October 9, 2011
.Dd April 6, 2015
.Dt GZIP 1
.Os
.Sh NAME
@ -105,9 +105,10 @@ options are enabled.
This version of
.Nm
is also capable of decompressing files compressed using
.Xr compress 1
.Xr compress 1 ,
.Xr bzip2 1 ,
or
.Xr bzip2 1 .
.Xr xz 1 .
.Sh OPTIONS
The following options are available:
.Bl -tag -width XXrXXXrecursiveX

28
usr.bin/gzip/gzip.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: gzip.c,v 1.106 2014/10/18 08:33:30 snj Exp $ */
/* $NetBSD: gzip.c,v 1.108 2015/04/15 02:29:12 christos Exp $ */
/*-
* Copyright (c) 1997, 1998, 2003, 2004, 2006 Matthew R. Green
@ -158,7 +158,7 @@ static suffixes_t suffixes[] = {
#define NUM_SUFFIXES (sizeof suffixes / sizeof suffixes[0])
#define SUFFIX_MAXLEN 30
static const char gzip_version[] = "FreeBSD gzip 20141022";
static const char gzip_version[] = "FreeBSD gzip 20150413";
#ifndef SMALL
static const char gzip_copyright[] = \
@ -1354,7 +1354,7 @@ file_uncompress(char *file, char *outfile, size_t outsize)
#ifndef SMALL
ssize_t rv;
time_t timestamp = 0;
unsigned char name[PATH_MAX + 1];
char name[PATH_MAX + 1];
#endif
/* gather the old name info */
@ -1409,21 +1409,33 @@ file_uncompress(char *file, char *outfile, size_t outsize)
timestamp = ts[3] << 24 | ts[2] << 16 | ts[1] << 8 | ts[0];
if (header1[3] & ORIG_NAME) {
rbytes = pread(fd, name, sizeof name, GZIP_ORIGNAME);
rbytes = pread(fd, name, sizeof(name) - 1, GZIP_ORIGNAME);
if (rbytes < 0) {
maybe_warn("can't read %s", file);
goto lose;
}
if (name[0] != 0) {
if (name[0] != '\0') {
char *dp, *nf;
/* Make sure that name is NUL-terminated */
name[rbytes] = '\0';
/* strip saved directory name */
nf = strrchr(name, '/');
if (nf == NULL)
nf = name;
else
nf++;
/* preserve original directory name */
char *dp = strrchr(file, '/');
dp = strrchr(file, '/');
if (dp == NULL)
dp = file;
else
dp++;
snprintf(outfile, outsize, "%.*s%.*s",
(int) (dp - file),
file, (int) rbytes, name);
file, (int) rbytes, nf);
}
}
}
@ -2110,7 +2122,7 @@ static void
display_license(void)
{
fprintf(stderr, "%s (based on NetBSD gzip 20141018)\n", gzip_version);
fprintf(stderr, "%s (based on NetBSD gzip 20150113)\n", gzip_version);
fprintf(stderr, "%s\n", gzip_copyright);
exit(0);
}