1 #include <errno.h>
2 #include <sys/types.h>
3 #include <netinet/in.h>
4
5 #include "utils.h"
6
do_digit(char * str,u_int32_t addr,u_int32_t scale,size_t * pos,size_t len)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
ipx_ntop1(const struct ipx_addr * addr,char * str,size_t len)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
ipx_ntop(int af,const void * addr,char * str,size_t len)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