1 files changed, 42 insertions, 0 deletions
diff --git a/src/lib/string/util_string.h b/src/lib/string/util_string.h
new file mode 100644
index 0000000000..f194c36373
--- /dev/null
+++ b/src/lib/string/util_string.h
@@ -0,0 +1,42 @@
+/* Copyright (c) 2003-2004, Roger Dingledine
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+#ifndef TOR_UTIL_STRING_H
+#define TOR_UTIL_STRING_H
+
+#include "orconfig.h"
+#include "lib/cc/compat_compiler.h"
+
+#include <stddef.h>
+
+/** Allowable characters in a hexadecimal string. */
+#define HEX_CHARACTERS "0123456789ABCDEFabcdef"
+void tor_strlower(char *s) ATTR_NONNULL((1));
+void tor_strupper(char *s) ATTR_NONNULL((1));
+int tor_strisprint(const char *s) ATTR_NONNULL((1));
+int tor_strisnonupper(const char *s) ATTR_NONNULL((1));
+int tor_strisspace(const char *s);
+int strcmp_opt(const char *s1, const char *s2);
+int strcmpstart(const char *s1, const char *s2) ATTR_NONNULL((1,2));
+int strcmp_len(const char *s1, const char *s2, size_t len) ATTR_NONNULL((1,2));
+int strcasecmpstart(const char *s1, const char *s2) ATTR_NONNULL((1,2));
+int strcmpend(const char *s1, const char *s2) ATTR_NONNULL((1,2));
+int strcasecmpend(const char *s1, const char *s2) ATTR_NONNULL((1,2));
+int fast_memcmpstart(const void *mem, size_t memlen, const char *prefix);
+
+void tor_strstrip(char *s, const char *strip) ATTR_NONNULL((1,2));
+
+const char *eat_whitespace(const char *s);
+const char *eat_whitespace_eos(const char *s, const char *eos);
+const char *eat_whitespace_no_nl(const char *s);
+const char *eat_whitespace_eos_no_nl(const char *s, const char *eos);
+const char *find_whitespace(const char *s);
+const char *find_whitespace_eos(const char *s, const char *eos);
+const char *find_str_at_start_of_line(const char *haystack,
+                                      const char *needle);
+
+int string_is_C_identifier(const char *string);
+
+#endif /* !defined(TOR_UTIL_STRING_H) */