X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Futils.h;h=e2a3306312be7727daeabeab1b38ba80c1148104;hb=d917c8cb6b69475d568ccbe82389b9f2b3eb5e80;hp=648a60717a0e9c8bd1ce6c931d9783076dab182d;hpb=06b8271ed5d56c9bd3de459d95907d0ef4f0ea3c;p=tinc

diff --git a/src/utils.h b/src/utils.h
index 648a6071..e2a33063 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -21,11 +21,11 @@
 #ifndef __TINC_UTILS_H__
 #define __TINC_UTILS_H__
 
-extern int hex2bin(char *src, char *dst, int length);
-extern int bin2hex(char *src, char *dst, int length);
+extern int hex2bin(const char *src, char *dst, int length);
+extern int bin2hex(const char *src, char *dst, int length);
 
-extern int b64encode(char *src, char *dst, int length);
-extern int b64decode(char *src, char *dst, int length);
+extern int b64encode(const char *src, char *dst, int length);
+extern int b64decode(const char *src, char *dst, int length);
 
 #ifdef HAVE_MINGW
 extern const char *winerror(int);
@@ -47,4 +47,4 @@ extern const char *winerror(int);
 
 extern unsigned int bitfield_to_int(const void *bitfield, size_t size);
 
-#endif							/* __TINC_UTILS_H__ */
+#endif /* __TINC_UTILS_H__ */