1 files changed, 42 insertions, 0 deletions
diff --git a/release/src/router/busybox/libbb/match_fstype.c b/release/src/router/busybox/libbb/match_fstype.c
new file mode 100644
index 00000000..9360e757
--- /dev/null
+++ b/release/src/router/busybox/libbb/match_fstype.c
@@ -0,0 +1,42 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Match fstypes for use in mount unmount
+ * We accept notmpfs,nfs but not notmpfs,nonfs
+ * This allows us to match fstypes that start with no like so
+ *   mount -at ,noddy
+ *
+ * Returns 1 for a match, otherwise 0
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "libbb.h"
+
+int FAST_FUNC match_fstype(const struct mntent *mt, const char *t_fstype)
+{
+	int match = 1;
+	int len;
+
+	if (!t_fstype)
+		return match;
+
+	if (t_fstype[0] == 'n' && t_fstype[1] == 'o') {
+		match--;
+		t_fstype += 2;
+	}
+
+	len = strlen(mt->mnt_type);
+	while (1) {
+		if (strncmp(mt->mnt_type, t_fstype, len) == 0
+		 && (t_fstype[len] == '\0' || t_fstype[len] == ',')
+		) {
+			return match;
+		}
+		t_fstype = strchr(t_fstype, ',');
+		if (!t_fstype)
+			break;
+		t_fstype++;
+	}
+
+	return !match;
+}