71b268c7d
Kaarle Ritvanen
2019-10-08
Subject
ln: --no-target-directory implies --no-dereference
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coreutils/ln.c+21 -4
| @@ -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); | |