HelenOS sources

uri_user_info_validate  253 uspace/lib/uri/uri.c 	if (uri->user_info && !uri_user_info_validate(uri->user_info))
uri_user_info_validate  256 uspace/lib/uri/uri.c 	if (uri->user_credential && !uri_user_info_validate(uri->user_credential))
uri_user_info_validate   55 uspace/lib/uri/uri.h extern bool uri_user_info_validate(const char *);
HelenOS homepage, sources at GitHub