Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add a -b(ackup) flag to move any existing file(s) aside by renaming

Browse Source 
them to file.old instead of simply deleting them. A different backup
suffix may be chosen with the -B option's argument.
This commit is contained in:
hubertf 1999-01-25 01:42:57 +00:00
parent 91d671c6fa
commit a9539cd876
2 changed files with 53 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
usr.bin/xinstall/install.1
View File

@ -1,4 +1,4 @@
.\" $NetBSD: install.1,v 1.12 1998/10/08 02:12:51 wsanchez Exp $
.\" $NetBSD: install.1,v 1.13 1999/01/25 01:42:57 hubertf Exp $
.\"
.\" Copyright (c) 1987, 1990, 1993
.\" The Regents of the University of California. All rights reserved.
@ -41,7 +41,8 @@
.Nd install binaries
.Sh SYNOPSIS
.Nm
.Op Fl cps
.Op Fl bcps
.Op Fl B Ar suffix
.Op Fl f Ar flags
.Op Fl m Ar mode
.Op Fl o Ar owner
@ -50,7 +51,8 @@
.Op Fl S Ar stripflag
.Ar file1 file2
.Nm ""
.Op Fl cps
.Op Fl bcps
.Op Fl B Ar suffix
.Op Fl f Ar flags
.Op Fl m Ar mode
.Op Fl o Ar owner
@ -78,10 +80,30 @@ If the destination is a directory, then the
is moved into
.Ar directory
with its original filename.
If the target file already exists, it is overwritten if permissions
allow.
If the target file already exists, it is
either renamed to
.Ar file.old
if the
.Fl b
option is given
or overwritten
if permissions allow, An alternate backup suffix may be specified via the
.Fl B
option's argument.
.Pp
.Bl -tag -width Ds
.It Fl b
Backup any existing files before overwriting them by renaming
them to
.Ar file.old . See
.Fl B
for specifying a different backup suffix.
.It Fl B Ar suffix
Use
.Ar suffix
as the backup suffix if
.Fl b
is given.
.It Fl c
Copy the file.
This flag turns off the default behavior of

34
usr.bin/xinstall/xinstall.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: xinstall.c,v 1.30 1998/12/20 15:07:46 christos Exp $ */
/* $NetBSD: xinstall.c,v 1.31 1999/01/25 01:42:57 hubertf Exp $ */
/*
* Copyright (c) 1987, 1993
@ -43,7 +43,7 @@ __COPYRIGHT("@(#) Copyright (c) 1987, 1993\n\
#if 0
static char sccsid[] = "@(#)xinstall.c 8.1 (Berkeley) 7/21/93";
#else
__RCSID("$NetBSD: xinstall.c,v 1.30 1998/12/20 15:07:46 christos Exp $");
__RCSID("$NetBSD: xinstall.c,v 1.31 1999/01/25 01:42:57 hubertf Exp $");
#endif
#endif /* not lint */
@ -68,15 +68,17 @@ __RCSID("$NetBSD: xinstall.c,v 1.30 1998/12/20 15:07:46 christos Exp $");
#include "stat_flags.h"
#define STRIP_ARGS_MAX 32
#define BACKUP_SUFFIX ".old"
struct passwd *pp;
struct group *gp;
int docopy=0, dodir=0, dostrip=0, dolink=0, dopreserve=0;
int dobackup=0, docopy=0, dodir=0, dostrip=0, dolink=0, dopreserve=0;
int mode = S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH;
char pathbuf[MAXPATHLEN];
uid_t uid;
gid_t gid;
char *stripArgs=NULL;
char *suffix=BACKUP_SUFFIX;
#define LN_ABSOLUTE 0x01
#define LN_RELATIVE 0x02
@ -109,8 +111,14 @@ main(argc, argv)
char *flags = NULL, *to_name, *group = NULL, *owner = NULL;
iflags = 0;
while ((ch = getopt(argc, argv, "cdf:g:l:m:o:psS:")) != -1)
while ((ch = getopt(argc, argv, "cbB:df:g:l:m:o:psS:")) != -1)
switch((char)ch) {
case 'B':
suffix = optarg;
/* fall through; -B implies -b */
case 'b':
dobackup = 1;
break;
case 'c':
docopy = 1;
break;
@ -233,7 +241,12 @@ main(argc, argv)
if (to_sb.st_flags & NOCHANGEBITS)
(void)chflags(to_name,
to_sb.st_flags & ~(NOCHANGEBITS));
(void)unlink(to_name);
if (dobackup) {
char backup[FILENAME_MAX];
(void)snprintf(backup, FILENAME_MAX, "%s%s", to_name, suffix);
(void)rename(to_name, backup);
} else
(void)unlink(to_name);
}
install(*argv, to_name, fset, iflags);
exit(0);
@ -347,7 +360,12 @@ install(from_name, to_name, fset, flags)
if (stat(to_name, &to_sb) == 0 &&
to_sb.st_flags & (NOCHANGEBITS))
(void)chflags(to_name, to_sb.st_flags & ~(NOCHANGEBITS));
(void)unlink(to_name);
if (dobackup) {
char backup[FILENAME_MAX];
(void)snprintf(backup, FILENAME_MAX, "%s%s", to_name, suffix);
(void)rename(to_name, backup);
} else
(void)unlink(to_name);
if (dolink) {
makelink(from_name, to_name);
@ -551,8 +569,8 @@ void
usage()
{
(void)fprintf(stderr, "\
usage: install [-cps] [-f flags] [-m mode] [-o owner] [-g group] [-l linkflags] [-S stripflags] file1 file2\n\
install [-cps] [-f flags] [-m mode] [-o owner] [-g group] [-l linkflags] [-S stripflags] file1 ... fileN directory\n\
usage: install [-bcps] [-B suffix] [-f flags] [-m mode] [-o owner] [-g group] [-l linkflags] [-S stripflags] file1 file2\n\
install [-bcps] [-B suffix] [-f flags] [-m mode] [-o owner] [-g group] [-l linkflags] [-S stripflags] file1 ... fileN directory\n\
install -pd [-m mode] [-o owner] [-g group] directory ...\n");
exit(1);
}