Accept -o cache_* options for backward compatibility.

Fixes: #73.

3 files changed, 22 insertions, 0 deletions

diff --git a/ChangeLog.rst b/ChangeLog.rst
index 606fa9d..90f067f 100644
--- a/ChangeLog.rst
+++ b/ChangeLog.rst
@@ -4,6 +4,9 @@ Unreleased Changes
 * Fixed a crash due to a race condition when listing
   directory contents.
 
+* For improved backwards compatibility, SSHFS now also silently
+  accepts the old ``-o cache_*`` options.
+  
 Release 3.0.0 (2017-07-08)
 --------------------------
 
diff --git a/cache.c b/cache.c
index 5740562..b4939c7 100644
--- a/cache.c
+++ b/cache.c
@@ -586,6 +586,19 @@ static const struct fuse_opt cache_opts[] = {
 					       clean_interval_secs), 0 },
 	{ "dcache_min_clean_interval=%u", offsetof(struct cache,
 						   min_clean_interval_secs), 0 },
+
+	/* For backwards compatibility */
+	{ "cache_timeout=%u", offsetof(struct cache, stat_timeout_secs), 0 },
+	{ "cache_timeout=%u", offsetof(struct cache, dir_timeout_secs), 0 },
+	{ "cache_timeout=%u", offsetof(struct cache, link_timeout_secs), 0 },
+	{ "cache_stat_timeout=%u", offsetof(struct cache, stat_timeout_secs), 0 },
+	{ "cache_dir_timeout=%u", offsetof(struct cache, dir_timeout_secs), 0 },
+	{ "cache_link_timeout=%u", offsetof(struct cache, link_timeout_secs), 0 },
+	{ "cache_max_size=%u", offsetof(struct cache, max_size), 0 },
+	{ "cache_clean_interval=%u", offsetof(struct cache,
+					       clean_interval_secs), 0 },
+	{ "cache_min_clean_interval=%u", offsetof(struct cache,
+						   min_clean_interval_secs), 0 },
 	FUSE_OPT_END
 };
 
diff --git a/sshfs.c b/sshfs.c
index 9809057..4f041e0 100644
--- a/sshfs.c
+++ b/sshfs.c
@@ -423,7 +423,13 @@ static struct fuse_opt sshfs_opts[] = {
 	FUSE_OPT_KEY("-p ",            KEY_PORT),
 	FUSE_OPT_KEY("-C",             KEY_COMPRESS),
 	FUSE_OPT_KEY("-F ",            KEY_CONFIGFILE),
+
+	/* For backwards compatibility */
+	SSHFS_OPT("cache=yes", dir_cache, 1),
+	SSHFS_OPT("cache=no",  dir_cache, 0),
+	
 	FUSE_OPT_END
+
 };
 
 static struct fuse_opt workaround_opts[] = {