1 #include <errno.h> 2 #include <sys/types.h> 3 #include <netinet/in.h> 4 5 #include "utils.h" 6 7 static __inline__ int do_digit(char *str, u_int32_t addr, u_int32_t scale, size_t *pos, size_t len) 8 { 9 u_int32_t tmp = addr >> (scale * 4); 10 11 if (*pos == len) 12 return 1; 13 14 tmp &= 0x0f; 15 if (tmp > 9) 16 *str = tmp + 'A' - 10; 17 else 18 *str = tmp + '0'; 19 (*pos)++; 20 21 return 0; 22 } 23 24 static const char *ipx_ntop1(const struct ipx_addr *addr, char *str, size_t len) 25 { 26 int i; 27 size_t pos = 0; 28 29 if (len == 0) 30 return str; 31 32 for(i = 7; i >= 0; i--) 33 if (do_digit(str + pos, ntohl(addr->ipx_net), i, &pos, len)) 34 return str; 35 36 if (pos == len) 37 return str; 38 39 *(str + pos) = '.'; 40 pos++; 41 42 for(i = 0; i < 6; i++) { 43 if (do_digit(str + pos, addr->ipx_node[i], 1, &pos, len)) 44 return str; 45 if (do_digit(str + pos, addr->ipx_node[i], 0, &pos, len)) 46 return str; 47 } 48 49 if (pos == len) 50 return str; 51 52 *(str + pos) = 0; 53 54 return str; 55 } 56 57 58 const char *ipx_ntop(int af, const void *addr, char *str, size_t len) 59 { 60 switch(af) { 61 case AF_IPX: 62 errno = 0; 63 return ipx_ntop1((struct ipx_addr *)addr, str, len); 64 default: 65 errno = EAFNOSUPPORT; 66 } 67 68 return NULL; 69 } 70 71 72
