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aba5acdf SH |
1 | #include <errno.h> |
2 | #include <string.h> | |
3 | #include <sys/types.h> | |
4 | #include <netinet/in.h> | |
5 | ||
6 | #include "utils.h" | |
7 | ||
8 | static u_int32_t hexget(char c) | |
9 | { | |
10 | if (c >= 'A' && c <= 'F') | |
11 | return c - 'A' + 10; | |
12 | if (c >= 'a' && c <= 'f') | |
13 | return c - 'a' + 10; | |
14 | if (c >= '0' && c <= '9') | |
15 | return c - '0'; | |
16 | ||
17 | return 0xf0; | |
18 | } | |
19 | ||
20 | static int ipx_getnet(u_int32_t *net, const char *str) | |
21 | { | |
22 | int i; | |
23 | u_int32_t tmp; | |
24 | ||
25 | for(i = 0; *str && (i < 8); i++) { | |
26 | ||
27 | if ((tmp = hexget(*str)) & 0xf0) { | |
28 | if (*str == '.') | |
29 | return 0; | |
30 | else | |
31 | return -1; | |
32 | } | |
33 | ||
34 | str++; | |
35 | (*net) <<= 4; | |
36 | (*net) |= tmp; | |
37 | } | |
38 | ||
39 | if (*str == 0) | |
40 | return 0; | |
41 | ||
42 | return -1; | |
43 | } | |
44 | ||
45 | static int ipx_getnode(u_int8_t *node, const char *str) | |
46 | { | |
47 | int i; | |
48 | u_int32_t tmp; | |
49 | ||
50 | for(i = 0; i < 6; i++) { | |
51 | if ((tmp = hexget(*str++)) & 0xf0) | |
52 | return -1; | |
53 | node[i] = (u_int8_t)tmp; | |
54 | node[i] <<= 4; | |
55 | if ((tmp = hexget(*str++)) & 0xf0) | |
56 | return -1; | |
57 | node[i] |= (u_int8_t)tmp; | |
58 | if (*str == ':') | |
59 | str++; | |
60 | } | |
61 | ||
62 | return 0; | |
63 | } | |
64 | ||
65 | static int ipx_pton1(const char *src, struct ipx_addr *addr) | |
66 | { | |
67 | char *sep = (char *)src; | |
68 | int no_node = 0; | |
69 | ||
70 | memset(addr, 0, sizeof(struct ipx_addr)); | |
71 | ||
72 | while(*sep && (*sep != '.')) | |
73 | sep++; | |
74 | ||
75 | if (*sep != '.') | |
76 | no_node = 1; | |
77 | ||
78 | if (ipx_getnet(&addr->ipx_net, src)) | |
79 | return 0; | |
80 | ||
81 | addr->ipx_net = htonl(addr->ipx_net); | |
82 | ||
83 | if (no_node) | |
84 | return 1; | |
85 | ||
86 | if (ipx_getnode(addr->ipx_node, sep + 1)) | |
87 | return 0; | |
88 | ||
89 | return 1; | |
90 | } | |
91 | ||
92 | int ipx_pton(int af, const char *src, void *addr) | |
93 | { | |
94 | int err; | |
95 | ||
96 | switch (af) { | |
97 | case AF_IPX: | |
98 | errno = 0; | |
99 | err = ipx_pton1(src, (struct ipx_addr *)addr); | |
100 | break; | |
101 | default: | |
102 | errno = EAFNOSUPPORT; | |
103 | err = -1; | |
104 | } | |
105 | ||
106 | return err; | |
107 | } |