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Date:      Thu, 15 Feb 2001 11:10:02 -0800 (PST)
From:      Martin Kammerhofer <mkamm@sbox.tu-graz.ac.at>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: bin/25017: cp -pRP does not preserve symlink ownership
Message-ID:  <200102151910.f1FJA2b59324@freefall.freebsd.org>
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The following reply was made to PR bin/25017; it has been noted by GNATS.

From: Martin Kammerhofer <mkamm@sbox.tu-graz.ac.at>
To: Bruce Evans <bde@zeta.org.au>
Cc: mkamm@gmx.net, FreeBSD-gnats-submit@FreeBSD.ORG
Subject: Re: bin/25017: cp -pRP does not preserve symlink ownership
Date: Thu, 15 Feb 2001 14:25:04 +0100 (CET)

 Am 12.02.01 hat Bruce Evans folgendes geschrieben:
 
 : 
 : This should use a slightly modified version of setfile() (replace
 : `chown(...)' by `(S_ISLINK(...) ? chown : lchown)(...)', etc.  This
 : will also fix the non-preservation of modes and times for symlinks.
 : 
 : Bruce
 : 
 
 Below is a revised patch following this proposition:
 
 Index: utils.c
 ===================================================================
 RCS file: /home/ncvs/src/bin/cp/utils.c,v
 retrieving revision 1.28
 diff -u -r1.28 utils.c
 --- utils.c	2000/10/10 01:48:18	1.28
 +++ utils.c	2001/02/15 14:15:03
 @@ -224,7 +224,7 @@
  		warn("symlink: %s", link);
  		return (1);
  	}
 -	return (0);
 +	return (pflag ? setfile(p->fts_statp, 0) : 0);
  }
  
  int
 @@ -267,20 +267,21 @@
  {
  	static struct timeval tv[2];
  	struct stat ts;
 -	int rval;
 -	int gotstat;
 +	int rval, gotstat, islink;
  
  	rval = 0;
 +	islink = !fd && S_ISLNK(fs->st_mode);
  	fs->st_mode &= S_ISUID | S_ISGID | S_ISVTX |
  		       S_IRWXU | S_IRWXG | S_IRWXO;
  
  	TIMESPEC_TO_TIMEVAL(&tv[0], &fs->st_atimespec);
  	TIMESPEC_TO_TIMEVAL(&tv[1], &fs->st_mtimespec);
 -	if (utimes(to.p_path, tv)) {
 +	if (islink ? lutimes(to.p_path, tv) : utimes(to.p_path, tv)) {
  		warn("utimes: %s", to.p_path);
  		rval = 1;
  	}
 -	if (fd ? fstat(fd, &ts) : stat(to.p_path, &ts))
 +	if (fd ? fstat(fd, &ts) :
 +	    (islink ? lstat(to.p_path, &ts) : stat(to.p_path, &ts)))
  		gotstat = 0;
  	else {
  		gotstat = 1;
 @@ -295,7 +296,8 @@
  	 */
  	if (!gotstat || fs->st_uid != ts.st_uid || fs->st_gid != ts.st_gid)
  		if (fd ? fchown(fd, fs->st_uid, fs->st_gid) :
 -		    chown(to.p_path, fs->st_uid, fs->st_gid)) {
 +		    (islink ? lchown(to.p_path, fs->st_uid, fs->st_gid) :
 +			      chown(to.p_path, fs->st_uid, fs->st_gid))) {
  			if (errno != EPERM) {
  				warn("chown: %s", to.p_path);
  				rval = 1;
 @@ -304,14 +306,17 @@
  		}
  
  	if (!gotstat || fs->st_mode != ts.st_mode)
 -		if (fd ? fchmod(fd, fs->st_mode) : chmod(to.p_path, fs->st_mode)) {
 -			warn("chown: %s", to.p_path);
 +		if (fd ? fchmod(fd, fs->st_mode) :
 +			(islink ? lchmod(to.p_path, fs->st_mode)
 +				: chmod(to.p_path, fs->st_mode))) {
 +			warn("chmod: %s", to.p_path);
  			rval = 1;
  		}
  
  	if (!gotstat || fs->st_flags != ts.st_flags)
 -		if (fd ?
 -		    fchflags(fd, fs->st_flags) : chflags(to.p_path, fs->st_flags)) {
 +		if (fd ? fchflags(fd, fs->st_flags) :
 +		    (islink ? (errno = ENOSYS)
 +		            : chflags(to.p_path, fs->st_flags))) {
  			warn("chflags: %s", to.p_path);
  			rval = 1;
  		}
 
 


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