diff options
| -rw-r--r-- | Documentation/MANPAGE.md | 27 | ||||
| -rw-r--r-- | cli_args.go | 4 |
2 files changed, 31 insertions, 0 deletions
diff --git a/Documentation/MANPAGE.md b/Documentation/MANPAGE.md index ffed44e..fa2f5b5 100644 --- a/Documentation/MANPAGE.md +++ b/Documentation/MANPAGE.md @@ -475,6 +475,10 @@ to your program, use `"--"`, which is accepted by most programs: Applies to: all actions that ask for a password. +BUG: In `-extpass -X`, the `-X` will be interpreted as `--X`. Please use +`-extpass=-X` to prevent that. See **Dash duplication** in the **BUGS** section +for details. + #### -fido2 DEVICE_PATH Use a FIDO2 token to initialize and unlock the filesystem. Use "fido2-token -L" to obtain the FIDO2 token device path. @@ -684,6 +688,29 @@ other: please check the error message See also: https://github.com/rfjakob/gocryptfs/blob/master/internal/exitcodes/exitcodes.go +BUGS +==== + +### Dash duplication + +gocryptfs v2.1 switched to the `pflag` library for command-line parsing +to support flags and positional arguments in any order. To stay compatible +with single-dash long options like `-extpass`, an ugly hack was added: +The command line is preprocessed, and all single-dash options are converted to +double-dash. + +Unfortunately, this means that in + + gocryptfs -extpass myapp -extpass -X + +gocryptfs transforms the `-X` to `--X`, and it will call `myapp --n` as the extpass program. + +Please use + + gocryptfs -extpass myapp -extpass=-X + +to work around this bug. + SEE ALSO ======== mount(2) fuse(8) fallocate(2) encfs(1) gitignore(5) diff --git a/cli_args.go b/cli_args.go index 6b97744..781dc5c 100644 --- a/cli_args.go +++ b/cli_args.go @@ -114,6 +114,10 @@ func prefixOArgs(osArgs []string) ([]string, error) { // into "--debug" (spf13/pflag style). // gocryptfs v2.1 switched from `flag` to `pflag`, but we obviously want to stay // cli-compatible, and this is the hack to do it. +// +// BUG: In `-extpass -X`, the `-X` gets transformed `--X`. +// See "Dash duplication" in the man page and +// https://github.com/rfjakob/gocryptfs/issues/621 . func convertToDoubleDash(osArgs []string) (out []string) { out = append(out, osArgs...) for i, v := range out { |