39 int strncasecmp(const char *s1, const char *s2, size_t len)  in strncasecmp()  argument
48 		c1 = *s1++;  in strncasecmp()
65 int strcasecmp(const char *s1, const char *s2)  in strcasecmp()  argument
70 		c1 = tolower(*s1++);  in strcasecmp()
833 char *strstr(const char *s1, const char *s2)  in strstr()  argument
839 		return (char *)s1;  in strstr()
840 	l1 = strlen(s1);  in strstr()
843 		if (!memcmp(s1, s2, l2))  in strstr()
844 			return (char *)s1;  in strstr()
845 		s1++;  in strstr()
859 char *strnstr(const char *s1, const char *s2, size_t len)  in strnstr()  argument
865 		return (char *)s1;  in strnstr()
868 		if (!memcmp(s1, s2, l2))  in strnstr()
869 			return (char *)s1;  in strnstr()
870 		s1++;  in strnstr()