fix Cygwin build fails: array subscript has type char

11 years ago · 0bdf494b54
parent bacbe113d0
commit 0bdf494b54
1 changed files with 1 additions and 1 deletions
--- a/src/detect-modbus.c
+++ b/src/detect-modbus.c
@ -292,7 +292,7 @@ static DetectModbus *DetectModbusFunctionParse(char *str)
    if (unlikely(modbus == NULL))
        goto error;

-    if (isdigit(ptr[0])) {
+    if (isdigit((unsigned char)ptr[0])) {
        modbus->function = atoi((const char*) ptr);
        SCLogDebug("will look for modbus function %d", modbus->function);