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-rw-r--r--src/common/util.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/common/util.c b/src/common/util.c
index d8891c6a53..a7eaf5389c 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -100,8 +100,6 @@
#undef MALLOC_ZERO_WORKS
#endif
-#include <ctype.h>
-
/* =====
* Memory management
* ===== */
@@ -1128,12 +1126,12 @@ string_is_valid_hostname(const char *string)
if (c_sl_idx == c_sl_len - 1) {
do {
- result = isalpha(*c);
+ result = TOR_ISALPHA(*c);
c++;
} while (result && *c);
} else {
do {
- result = (isalnum(*c) || (*c == '-') || (*c == '_'));
+ result = (TOR_ISALNUM(*c) || (*c == '-') || (*c == '_'));
c++;
} while (result > 0 && *c);
}