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-rw-r--r--libbb/get_last_path_component.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/libbb/get_last_path_component.c b/libbb/get_last_path_component.c
new file mode 100644
index 0000000..7c99116
--- /dev/null
+++ b/libbb/get_last_path_component.c
@@ -0,0 +1,42 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * bb_get_last_path_component implementation for busybox
+ *
+ * Copyright (C) 2001 Manuel Novoa III <mjn3@codepoet.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "libbb.h"
+/*
+ * "/" -> "/"
+ * "abc" -> "abc"
+ * "abc/def" -> "def"
+ * "abc/def/" -> ""
+ */
+char* FAST_FUNC bb_get_last_path_component_nostrip(const char *path)
+{
+ char *slash = strrchr(path, '/');
+
+ if (!slash || (slash == path && !slash[1]))
+ return (char*)path;
+
+ return slash + 1;
+}
+
+/*
+ * "/" -> "/"
+ * "abc" -> "abc"
+ * "abc/def" -> "def"
+ * "abc/def/" -> "def" !!
+ */
+char* FAST_FUNC bb_get_last_path_component_strip(char *path)
+{
+ char *slash = last_char_is(path, '/');
+
+ if (slash)
+ while (*slash == '/' && slash != path)
+ *slash-- = '\0';
+
+ return bb_get_last_path_component_nostrip(path);
+}