us1                50 ext/fileinfo/libmagic/strcasestr.c 		const unsigned char *us1 = (const unsigned char *)s1,
us1                54 ext/fileinfo/libmagic/strcasestr.c 			if (tolower(*us1) != tolower(*us2++))
us1                55 ext/fileinfo/libmagic/strcasestr.c 				return tolower(*us1) - tolower(*--us2);
us1                56 ext/fileinfo/libmagic/strcasestr.c 			if (*us1++ == '\0')