- Add "-a afterinstallcommand", which runs "sh -c afterinstallcmd target"
after target has been installed and possibly stripped with -s, but before ownership, permissions or timestamps are set, and before renaming (with -r) occurs. Per discussion with simonb. - When metalogging hardlinks, log the mode of the existing target (rather than the default 0755), and ignore owner/group/fflags. - Improve man page description of various options to include argument name. - Clean up usage() to use getprogname(), etc.
This commit is contained in:
lukem
parent
376c14488f
commit
3d000fd59c
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@ -1,4 +1,4 @@
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.\" $NetBSD: install.1,v 1.29 2002/02/08 01:36:38 ross Exp $
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.\" $NetBSD: install.1,v 1.30 2002/03/19 14:17:04 lukem Exp $
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.\"
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.\" Copyright (c) 1987, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -33,7 +33,7 @@
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.\"
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.\" @(#)install.1 8.1 (Berkeley) 6/6/93
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.\"
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.Dd October 26, 2001
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.Dd March 20, 2002
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.Dt INSTALL 1
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.Os
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.Sh NAME
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@ -55,6 +55,9 @@
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.Op Fl T Ar tags
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.Ek
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.Bk -words
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.Op Fl a Ar command
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.Ek
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.Bk -words
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.Op Fl m Ar mode
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.Ek
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.Bk -words
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@ -85,6 +88,9 @@
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.Op Fl T Ar tags
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.Ek
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.Bk -words
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.Op Fl a Ar command
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.Ek
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.Bk -words
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.Op Fl m Ar mode
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.Ek
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.Bk -words
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@ -102,8 +108,8 @@
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.Ar file1 ...\&
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.Ar fileN directory
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.Nm ""
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.Op Fl Up
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.Fl d
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.Op Fl Up
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.Bk -words
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.Op Fl M Ar metalog
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.Ek
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@ -111,6 +117,9 @@
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.Op Fl T Ar tags
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.Ek
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.Bk -words
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.Op Fl a Ar command
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.Ek
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.Bk -words
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.Op Fl m Ar mode
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.Ek
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.Bk -words
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@ -143,6 +152,23 @@ if permissions allow, An alternate backup suffix may be specified via the
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option's argument.
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.Pp
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.Bl -tag -width Ds
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.It Fl a Ar command
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Run
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.Ar command
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on the target after installation and stripping
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.Pq Fl s ,
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but before
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ownership, permissions or timestamps are set and before renaming
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.Pq Fl r
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occurs.
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.Ar command
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is invoked via the
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.Xr sh 1
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shell, allowing a single
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.Fl a
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argument be to specified to
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.Nm
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which the shell can then tokenize.
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.It Fl b
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Backup any existing files before overwriting them by renaming
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them to
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@ -167,12 +193,15 @@ Copy the file.
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This flag turns off the default behavior of
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.Nm
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where it deletes the original file after creating the target.
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.It Fl f
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.It Fl d
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Create directories.
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Missing parent directories are created as required.
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.It Fl f Ar flags
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Specify the target's file flags.
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(See
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.Xr chflags 1
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for a list of possible flags and their meanings.)
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.It Fl g
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.It Fl g Ar group
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Specify a group.
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.It Fl M Ar metalog
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Write the metadata associated with each item installed to
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@ -183,7 +212,7 @@ in an
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specification line.
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The metadata includes: the file name and file type, and depending upon
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other options, the owner, group, file flags, modification time, and tags.
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.It Fl m
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.It Fl m Ar mode
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Specify an alternative mode.
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The default mode is set to rwxr-xr-x (0755).
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The specified mode may be either an octal or symbolic value; see
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@ -207,7 +236,7 @@ are:
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.Ar m
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(mixed). Absolute and relative have effect only for symbolic links. Mixed links
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are hard links for files on the same filesystem, symbolic otherwise.
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.It Fl o
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.It Fl o Ar owner
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Specify an owner.
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.It Fl p
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Preserve the source files access and modification times.
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@ -238,7 +267,7 @@ is used,
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is invoked via the
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.Xr sh 1
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shell, allowing a single
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Fl S
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.Fl S
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argument be to specified to
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.Nm
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which the shell can then tokenize. Normally,
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@ -252,9 +281,6 @@ Specify the
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.Xr mtree 8
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tags to write out for the file when using
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.Fl M Ar metalog .
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.It Fl d
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Create directories.
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Missing parent directories are created as required.
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.It Fl U
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Indicate that install is running unprivileged, and that it should not
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try to change the owner, the group, or the file flags of the destination.
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@ -1,4 +1,4 @@
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/* $NetBSD: xinstall.c,v 1.68 2002/02/28 00:22:51 lukem Exp $ */
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/* $NetBSD: xinstall.c,v 1.69 2002/03/19 14:17:04 lukem Exp $ */
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/*
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* Copyright (c) 1987, 1993
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@ -50,7 +50,7 @@ __COPYRIGHT("@(#) Copyright (c) 1987, 1993\n\
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#if 0
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static char sccsid[] = "@(#)xinstall.c 8.1 (Berkeley) 7/21/93";
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#else
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__RCSID("$NetBSD: xinstall.c,v 1.68 2002/02/28 00:22:51 lukem Exp $");
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__RCSID("$NetBSD: xinstall.c,v 1.69 2002/03/19 14:17:04 lukem Exp $");
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#endif
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#endif /* not lint */
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@ -90,6 +90,7 @@ FILE *metafp;
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char *metafile;
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u_long fileflags;
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char *stripArgs;
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char *afterinstallcmd;
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char *suffix = BACKUP_SUFFIX;
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#define LN_ABSOLUTE 0x01
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@ -103,6 +104,7 @@ char *suffix = BACKUP_SUFFIX;
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#define HASUID 0x04 /* Tell install the uid was given */
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#define HASGID 0x08 /* Tell install the gid was given */
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void afterinstall(const char *, const char *, int);
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void backup(const char *);
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void copy(int, char *, int, char *, off_t);
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int do_link(char *, char *);
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@ -130,8 +132,13 @@ main(int argc, char *argv[])
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setprogname(argv[0]);
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iflags = 0;
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while ((ch = getopt(argc, argv, "cbB:df:g:l:m:M:o:prsS:T:U")) != -1)
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while ((ch = getopt(argc, argv, "a:cbB:df:g:l:m:M:o:prsS:T:U")) != -1)
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switch((char)ch) {
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case 'a':
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afterinstallcmd = strdup(optarg);
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if (afterinstallcmd == NULL)
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errx(1, "%s", strerror(ENOMEM));
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break;
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case 'B':
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suffix = optarg;
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numberedbackup = 0;
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@ -422,9 +429,26 @@ makelink(char *from_name, char *to_name)
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} else {
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if (stat(to_name, &to_sb))
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err(1, "%s: stat", to_name);
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if (S_ISREG(to_sb.st_mode))
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metadata_log(to_name, "file", NULL, NULL);
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if (S_ISREG(to_sb.st_mode)) {
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/* XXX: only metalog hardlinked files */
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int omode;
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char *oowner, *ogroup, *offlags;
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/* XXX: use underlying perms */
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omode = mode;
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mode = (to_sb.st_mode & 0777);
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oowner = owner;
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owner = NULL;
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ogroup = group;
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group = NULL;
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offlags = fflags;
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fflags = NULL;
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metadata_log(to_name, "file", NULL, NULL);
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mode = omode;
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owner = oowner;
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group = ogroup;
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fflags = offlags;
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}
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return;
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}
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}
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@ -580,7 +604,19 @@ install(char *from_name, char *to_name, u_int flags)
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*/
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close(to_fd);
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if ((to_fd = open(to_name, O_RDONLY, S_IRUSR | S_IWUSR)) < 0)
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err(1, "stripping %s", to_name);
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err(1, "stripping %s", to_name);
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}
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if (afterinstallcmd != NULL) {
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afterinstall(afterinstallcmd, to_name, 1);
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/*
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* Re-open our fd on the target, in case we used an
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* after-install command that does not work in-place
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*/
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close(to_fd);
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if ((to_fd = open(to_name, O_RDONLY, S_IRUSR | S_IWUSR)) < 0)
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err(1, "running after install command on %s", to_name);
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}
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/*
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}
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}
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/*
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* afterinstall --
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* run provided command on the target file or directory after it's been
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* installed and stripped, but before permissions are set or it's renamed
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*/
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void
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afterinstall(const char *command, const char *to_name, int errunlink)
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{
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int serrno, status;
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char *cmd;
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switch (vfork()) {
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case -1:
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serrno = errno;
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if (errunlink)
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(void)unlink(to_name);
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errx(1, "vfork: %s", strerror(serrno));
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/*NOTREACHED*/
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case 0:
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/*
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* build up a command line and let /bin/sh
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* parse the arguments
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*/
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cmd = (char*)malloc(sizeof(char)*
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(2+strlen(command)+
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strlen(to_name)));
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if (cmd == NULL)
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errx(1, "%s", strerror(ENOMEM));
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sprintf(cmd, "%s %s", command, to_name);
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execl(_PATH_BSHELL, "sh", "-c", cmd, NULL);
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warn("%s: exec of after install command", command);
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_exit(1);
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/*NOTREACHED*/
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default:
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if ((wait(&status) == -1 || status) && errunlink)
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(void)unlink(to_name);
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}
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}
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/*
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* backup --
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* backup file "to_name" to to_name.suffix
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@ -817,6 +896,9 @@ install_dir(char *path, u_int flags)
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break;
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}
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if (afterinstallcmd != NULL)
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afterinstall(afterinstallcmd, path, 0);
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if (!dounpriv && (
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((flags & (HASUID | HASGID)) && chown(path, uid, gid) == -1)
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|| chmod(path, mode) == -1 )) {
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@ -907,14 +989,19 @@ xdirname(char *path)
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void
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usage(void)
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{
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const char *prog;
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(void)fprintf(stderr, "\
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usage: install [-Ubcprs] [-M log] [-T tags] [-B suffix] [-f flags] [-m mode]\n\
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[-o owner] [-g group] [-l linkflags] [-S stripflags] file1 file2\n\
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install [-Ubcprs] [-M log] [-T tags] [-B suffix] [-f flags] [-m mode]\n\
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[-o owner] [-g group] [-l linkflags] [-S stripflags]\n\
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file1 ... fileN directory\n\
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install [-Up] [-M log] [-T tags] -d [-m mode]\n\
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[-o owner] [-g group] directory ...\n");
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prog = getprogname();
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(void)fprintf(stderr,
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"usage: %s [-Ubcprs] [-M log] [-T tags] [-B suffix] [-a afterinstallcmd]\n"
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" [-f flags] [-m mode] [-o owner] [-g group] [-l linkflags]\n"
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" [-S stripflags] file1 file2\n"
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" %s [-Ubcprs] [-M log] [-T tags] [-B suffix] [-a afterinstallcmd]\n"
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" [-f flags] [-m mode] [-o owner] [-g group] [-l linkflags]\n"
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" [-S stripflags] file1 ... fileN directory\n"
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" %s -d [-Up] [-M log] [-T tags] [-a afterinstallcmd] [-m mode]\n"
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" [-o owner] [-g group] directory ...\n",
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prog, prog, prog);
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exit(1);
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}
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