diff -r 9a4857d6444e -r d814ee31c04f libidav/utils.c
--- a/libidav/utils.c	Fri Mar 22 13:07:31 2019 +0100
+++ b/libidav/utils.c	Sat Mar 23 10:04:18 2019 +0100
@@ -193,14 +193,14 @@
     }
 }
 
-int util_getboolean(char *v) {
+int util_getboolean(const char *v) {
     if(v[0] == 'T' || v[0] == 't') {
         return 1;
     }
     return 0;
 }
 
-int util_strtouint(char *str, uint64_t *value) {
+int util_strtouint(const char *str, uint64_t *value) {
     char *end;
     errno = 0;
     uint64_t val = strtoull(str, &end, 0);
@@ -212,7 +212,7 @@
     }
 }
 
-int util_strtoint(char *str, int64_t *value) {
+int util_strtoint(const char *str, int64_t *value) {
     char *end;
     errno = 0;
     int64_t val = strtoll(str, &end, 0);