1 /* 2 * IP address processing 3 * Copyright (c) 2003-2006, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #include "includes.h" 10 11 #include "common.h" 12 #include "ip_addr.h" 13 hostapd_ip_txt(const struct hostapd_ip_addr * addr,char * buf,size_t buflen)14 const char * hostapd_ip_txt(const struct hostapd_ip_addr *addr, char *buf, 15 size_t buflen) 16 { 17 if (buflen == 0 || addr == NULL) 18 return NULL; 19 20 if (addr->af == AF_INET) { 21 os_strlcpy(buf, inet_ntoa(addr->u.v4), buflen); 22 } else { 23 buf[0] = '\0'; 24 } 25 #ifdef CONFIG_IPV6 26 if (addr->af == AF_INET6) { 27 if (inet_ntop(AF_INET6, &addr->u.v6, buf, buflen) == NULL) 28 buf[0] = '\0'; 29 } 30 #endif /* CONFIG_IPV6 */ 31 32 return buf; 33 } 34 35 hostapd_parse_ip_addr(const char * txt,struct hostapd_ip_addr * addr)36 int hostapd_parse_ip_addr(const char *txt, struct hostapd_ip_addr *addr) 37 { 38 #ifndef CONFIG_NATIVE_WINDOWS 39 if (inet_aton(txt, &addr->u.v4)) { 40 addr->af = AF_INET; 41 return 0; 42 } 43 44 #ifdef CONFIG_IPV6 45 if (inet_pton(AF_INET6, txt, &addr->u.v6) > 0) { 46 addr->af = AF_INET6; 47 return 0; 48 } 49 #endif /* CONFIG_IPV6 */ 50 #endif /* CONFIG_NATIVE_WINDOWS */ 51 52 return -1; 53 } 54 55 hostapd_ip_equal(const struct hostapd_ip_addr * a,const struct hostapd_ip_addr * b)56 bool hostapd_ip_equal(const struct hostapd_ip_addr *a, 57 const struct hostapd_ip_addr *b) 58 { 59 if (a->af != b->af) 60 return false; 61 62 if (a->af == AF_INET && a->u.v4.s_addr == b->u.v4.s_addr) 63 return true; 64 65 #ifdef CONFIG_IPV6 66 if (a->af == AF_INET6 && 67 os_memcmp(&a->u.v6, &b->u.v6, sizeof(a->u.v6)) == 0) 68 return true; 69 #endif /* CONFIG_IPV6 */ 70 71 return false; 72 } 73