int irccasecmp(const char *stra, const char *strb);
int ircncasecmp(const char *stra, const char *strb, unsigned int len);
const char *irccasestr(const char *haystack, const char *needle);
int irccasecmp(const char *stra, const char *strb);
int ircncasecmp(const char *stra, const char *strb, unsigned int len);
const char *irccasestr(const char *haystack, const char *needle);