From 5459e87fe6515c421186851c1e71773154bcd7e2 Mon Sep 17 00:00:00 2001
From: Nikolaus Rath <Nikolaus@rath.org>
Date: Thu, 3 Aug 2017 17:19:22 +0200
Subject: Simplify and fix FreeBSD fsname handling

This should simplify the code a lot. It also corrects a bug in
that the (former) add_default_fsname() function actually set
the -osubtype option.
---
 lib/helper.c | 39 ++++++++++-----------------------------
 1 file changed, 10 insertions(+), 29 deletions(-)

(limited to 'lib')

diff --git a/lib/helper.c b/lib/helper.c
index c562c43..9abc6dd 100644
--- a/lib/helper.c
+++ b/lib/helper.c
@@ -41,14 +41,10 @@ static const struct fuse_opt fuse_helper_opts[] = {
 	FUSE_OPT_KEY("debug",		FUSE_OPT_KEY_KEEP),
 	FUSE_HELPER_OPT("-f",		foreground),
 	FUSE_HELPER_OPT("-s",		singlethread),
-#ifdef __FreeBSD__
-	FUSE_HELPER_OPT("fsname=",	fsname),
-#else
 	FUSE_HELPER_OPT("fsname=",	nodefault_subtype),
-	FUSE_HELPER_OPT("subtype=",	nodefault_subtype),
-#endif
 	FUSE_OPT_KEY("fsname=",		FUSE_OPT_KEY_KEEP),
 #ifndef __FreeBSD__
+	FUSE_HELPER_OPT("subtype=",	nodefault_subtype),
 	FUSE_OPT_KEY("subtype=",	FUSE_OPT_KEY_KEEP),
 #endif
 	FUSE_HELPER_OPT("clone_fd",	clone_fd),
@@ -167,43 +163,31 @@ static int fuse_helper_opt_proc(void *data, const char *arg, int key,
 	}
 }
 
-#ifdef __FreeBSD__
-static int add_default_fsname(const char *progname, struct fuse_args *args)
-#else
+/* Under FreeBSD, there is no subtype option so this
+   function actually sets the fsname */
 static int add_default_subtype(const char *progname, struct fuse_args *args)
-#endif
 {
 	int res;
-#ifdef __FreeBSD__
-	char *fsname_opt;
-#else
 	char *subtype_opt;
-#endif
+
 	const char *basename = strrchr(progname, '/');
 	if (basename == NULL)
 		basename = progname;
 	else if (basename[1] != '\0')
 		basename++;
 
-#ifdef __FreeBSD__
-	fsname_opt = (char *) malloc(strlen(basename) + 64);
-	if (fsname_opt == NULL) {
-#else
 	subtype_opt = (char *) malloc(strlen(basename) + 64);
 	if (subtype_opt == NULL) {
-#endif
 		fprintf(stderr, "fuse: memory allocation failed\n");
 		return -1;
 	}
 #ifdef __FreeBSD__
-	sprintf(fsname_opt, "-osubtype=%s", basename);
-	res = fuse_opt_add_arg(args, fsname_opt);
-	free(fsname_opt);
+	sprintf(subtype_opt, "-ofsname=%s", basename);
 #else
 	sprintf(subtype_opt, "-osubtype=%s", basename);
+#endif
 	res = fuse_opt_add_arg(args, subtype_opt);
 	free(subtype_opt);
-#endif
 	return res;
 }
 
@@ -215,15 +199,12 @@ int fuse_parse_cmdline(struct fuse_args *args,
 			   fuse_helper_opt_proc) == -1)
 		return -1;
 
-	/* If neither -o subtype nor -o fsname are specified,
-	   set subtype to program's basename */
-#ifdef __FreeBSD__
-	if (!opts->fsname)
-		if (add_default_fsname(args->argv[0], args) == -1)
-#else
+	/* *Linux*: if neither -o subtype nor -o fsname are specified,
+	   set subtype to program's basename.
+	   *FreeBSD*: if fsname is not specified, set to program's
+	   basename. */
 	if (!opts->nodefault_subtype)
 		if (add_default_subtype(args->argv[0], args) == -1)
-#endif
 			return -1;
 
 	return 0;
-- 
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