| osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 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 | } |