cmd/sharefs: handle mount -t fuse.sharefs

This should have been handled in a custom option parsing function, but that much extra complexity is unnecessary for this edge case. Honestly I do not know why libfuse does not handle this itself.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/sharefs/fuse.go

@@ -314,7 +314,7 @@ func _main(s ...string) (exitCode int) {
 		// hack to keep fuse_parse_cmdline happy in the container
 		mountpoint := C.GoString(opts.mountpoint)
 		pathnameArg := -1
-		for i, arg := range os.Args {
+		for i, arg := range s {
 			if arg == mountpoint {
 				pathnameArg = i
 				break
@@ -324,7 +324,7 @@ func _main(s ...string) (exitCode int) {
 			log.Println("mountpoint must be absolute")
 			return 2
 		}
-		os.Args[pathnameArg] = container.Nonexistent
+		s[pathnameArg] = container.Nonexistent
 	}
 
 	if !parseOpts(&args, &setup, msg.GetLogger()) {
@@ -421,7 +421,7 @@ func _main(s ...string) (exitCode int) {
 		} else {
 			z.Path = a
 		}
-		z.Args = os.Args
+		z.Args = s
 		z.ForwardCancel = true
 		z.SeccompPresets |= std.PresetStrict
 		z.ParentPerm = 0700