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-rw-r--r--src/common/compat.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/common/compat.h b/src/common/compat.h
index a4f52040a0..f0757d577f 100644
--- a/src/common/compat.h
+++ b/src/common/compat.h
@@ -155,6 +155,9 @@ const void *tor_memmem(const void *haystack, size_t hlen, const void *needle,
#define TOR_ISLOWER(c) islower((int)(unsigned char)(c))
#define TOR_ISUPPER(c) isupper((int)(unsigned char)(c))
+#define TOR_TOLOWER(c) ((char)tolower((int)(unsigned char)(c)))
+#define TOR_TOUPPER(c) ((char)toupper((int)(unsigned char)(c)))
+
#ifdef MS_WINDOWS
#define _SHORT_FILE_ (tor_fix_source_file(__FILE__))
const char *tor_fix_source_file(const char *fname);