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-rw-r--r--util.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/util.c b/util.c
index e56992e..cb88968 100644
--- a/util.c
+++ b/util.c
@@ -86,7 +86,7 @@ __plugin bool uci_validate_str(const char *str, bool name)
return false;
while (*str) {
- char c = *str;
+ unsigned char c = *str;
if (!isalnum(c) && c != '_') {
if (name || (c < 33) || (c > 126))
return false;
@@ -114,8 +114,9 @@ static inline bool uci_validate_name(const char *str)
bool uci_validate_text(const char *str)
{
while (*str) {
- if ((*str == '\r') || (*str == '\n') ||
- ((*str < 32) && (*str != '\t')))
+ unsigned char c = *str;
+ if ((c == '\r') || (c == '\n') ||
+ ((c < 32) && (c != '\t')))
return false;
str++;
}