40 int strncasecmp(const char *s1, const char *s2, size_t len)  in strncasecmp()  argument
49 		c1 = *s1++;  in strncasecmp()
66 int strcasecmp(const char *s1, const char *s2)  in strcasecmp()  argument
71 		c1 = tolower(*s1++);  in strcasecmp()
733 char *strstr(const char *s1, const char *s2)  in strstr()  argument
739 		return (char *)s1;  in strstr()
740 	l1 = strlen(s1);  in strstr()
743 		if (!memcmp(s1, s2, l2))  in strstr()
744 			return (char *)s1;  in strstr()
745 		s1++;  in strstr()
759 char *strnstr(const char *s1, const char *s2, size_t len)  in strnstr()  argument
765 		return (char *)s1;  in strnstr()
768 		if (!memcmp(s1, s2, l2))  in strnstr()
769 			return (char *)s1;  in strnstr()
770 		s1++;  in strnstr()