diff options
| author | Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi> | 2019-10-08 14:07:50 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-10-08 14:07:50 +0200 |
| commit | 71b268c7d962a819f88050c2567dced975aa249e (patch) | |
| tree | 68d96786f1dc8ab00057781fad695577af57cbd8 | |
| parent | 4527273f1c5bca044577f2f8ed2d7e4f203bf485 (diff) | |
| download | busybox-71b268c7d962a819f88050c2567dced975aa249e.tar.gz | |
ln: --no-target-directory implies --no-dereference
as in GNU coreutils
Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | coreutils/ln.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/coreutils/ln.c b/coreutils/ln.c index ea2d10eab..5591e8335 100644 --- a/coreutils/ln.c +++ b/coreutils/ln.c @@ -41,7 +41,6 @@ /* This is a NOEXEC applet. Be very careful! */ - #define LN_SYMLINK (1 << 0) #define LN_FORCE (1 << 1) #define LN_NODEREFERENCE (1 << 2) @@ -63,7 +62,22 @@ int ln_main(int argc, char **argv) int (*link_func)(const char *, const char *); opts = getopt32(argv, "^" "sfnbS:vT" "\0" "-1", &suffix); - +/* + -s, --symbolic make symbolic links instead of hard links + -f, --force remove existing destination files + -n, --no-dereference treat LINK_NAME as a normal file if it is a symbolic link to a directory + -b like --backup but does not accept an argument + --backup[=CONTROL] make a backup of each existing destination file + -S, --suffix=SUFFIX override the usual backup suffix + -v, --verbose + -T, --no-target-directory + -d, -F, --directory allow the superuser to attempt to hard link directories + -i, --interactive prompt whether to remove destinations + -L, --logical dereference TARGETs that are symbolic links + -P, --physical make hard links directly to symbolic links + -r, --relative create symbolic links relative to link location + -t, --target-directory=DIRECTORY specify the DIRECTORY in which to create the links + */ last = argv[argc - 1]; argv += optind; argc -= optind; @@ -86,8 +100,11 @@ int ln_main(int argc, char **argv) src = last; if (is_directory(src, - (opts & LN_NODEREFERENCE) ^ LN_NODEREFERENCE - ) + /*followlinks:*/ !(opts & (LN_NODEREFERENCE|LN_LINKFILE)) + /* Why LN_LINKFILE does not follow links: + * -T/--no-target-directory implies -n/--no-dereference + */ + ) ) { if (opts & LN_LINKFILE) { bb_error_msg_and_die("'%s' is a directory", src); |