Adding upstream version 1.12.

Signed-off-by: Daniel Baumann <daniel@debian.org>

util/parser.h

@@ -0,0 +1,34 @@
+/*
+ * linux/include/linux/parser.h
+ *
+ * Header for lib/parser.c
+ * Intended use of these functions is parsing filesystem argument lists,
+ * but could potentially be used anywhere else that simple option=arg
+ * parsing is required.
+ */
+
+
+/* associates an integer enumerator with a pattern string. */
+struct match_token {
+	int token;
+	const char *pattern;
+};
+
+typedef struct match_token match_table_t[];
+
+/* Maximum number of arguments that match_token will find in a pattern */
+enum {MAX_OPT_ARGS = 3};
+
+/* Describe the location within a string of a substring */
+typedef struct {
+	char *from;
+	char *to;
+} substring_t;
+
+int match_token(char *, const match_table_t table, substring_t args[]);
+int match_int(substring_t *, int *result);
+int match_octal(substring_t *, int *result);
+int match_hex(substring_t *, int *result);
+bool match_wildcard(const char *pattern, const char *str);
+size_t match_strlcpy(char *, const substring_t *, size_t);
+char *match_strdup(const substring_t *);