- Added /paths

- Return an informative message when reading from it

1 files changed, 28 insertions, 1 deletions

diff --git a/src/mfs_vnops.c b/src/mfs_vnops.c
index 60c9ad6..4a11c2c 100755
--- a/src/mfs_vnops.c
+++ b/src/mfs_vnops.c
@@ -41,6 +41,12 @@
 char musicpath[MAXPATHLEN]; // = "/home/lulf/dev/musicfs/music";
 char *logpath = "/home/lulf/dev/musicfs/musicfs.log";
 
+/* Information when reading /paths */
+const char* paths_info =
+"# This is the paths I've registered for your music collection.\n"
+"# Add additional paths on their own line in this file, and I'll\n"
+"# scan them.\n";
+
 static int mfs_getattr (const char *path, struct stat *stbuf)
 {
 	struct file_data fd;
@@ -50,12 +56,19 @@ static int mfs_getattr (const char *path, struct stat *stbuf)
 	int status = 0;
 	memset (stbuf, 0, sizeof (struct stat));
 
-	if (strcmp (path, "/") == 0) {
+	if (strcmp(path, "/") == 0) {
 		stbuf->st_mode = S_IFDIR | 0755;
 		stbuf->st_nlink = 2;
 		return 0;
 	}
 
+	if (strcmp(path, "/paths") == 0) {
+		stbuf->st_mode = S_IFREG | 0744;
+		stbuf->st_nlink = 2;
+		stbuf->st_size = strlen(paths_info);
+		return 0;
+	}
+
 	enum mfs_filetype type = mfs_get_filetype(path);
 	switch (type) {
 	case MFS_DIRECTORY:
@@ -102,6 +115,7 @@ static int mfs_readdir (const char *path, void *buf, fuse_fill_dir_t filler,
 		filler(buf, "Genres", NULL, 0);
 		filler(buf, "Tracks", NULL, 0);
 		filler(buf, "Albums", NULL, 0);
+		filler(buf, "paths", NULL, 0);
 		return (0);
 	}
 
@@ -136,6 +150,9 @@ static int mfs_open (const char *path, struct fuse_file_info *fi)
 	fd.fd = -1;
 	fd.found = 0;
 
+	if (strcmp(path, "/paths") == 0)
+		return (0);
+
 	int status = mfs_file_data_for_path(path, &fd);
 	if (status != 0)
 		return (status);
@@ -164,8 +181,18 @@ static int mfs_read (const char *path, char *buf, size_t size, off_t offset,
 	struct file_data fd;
 	fd.fd = -1;
 	fd.found = 0;
+	int len;
 	size_t bytes;
 
+	if (strcmp(path, "/paths") == 0) {
+		DEBUG("read from paths, offset(%d), size(%d)\n", offset, size);
+		len = strlen(paths_info);
+		if (size > (len - offset))
+			size = len - offset;
+		strncpy(buf, paths_info + offset, size);
+		return (size);
+	}
+
 	int status = mfs_file_data_for_path(path, &fd);
 	if (status != 0)
 		return (status);