xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <string.h> |
| 4 | #include <unistd.h> |
| 5 | #include <ctype.h> |
| 6 | #include <linux/fs.h> |
| 7 | #include <sys/ioctl.h> |
| 8 | |
| 9 | int |
| 10 | getnext ( |
| 11 | char * src, |
| 12 | int separator, |
| 13 | char * dest |
| 14 | ) |
| 15 | { |
| 16 | char * c; |
| 17 | int len; |
| 18 | |
| 19 | if ( (src == NULL) || (dest == NULL) ) { |
| 20 | return -1; |
| 21 | } |
| 22 | |
| 23 | c = strchr(src, separator); |
| 24 | if (c == NULL) { |
| 25 | return -1; |
| 26 | } |
| 27 | len = c - src; |
| 28 | strncpy(dest, src, len); |
| 29 | dest[len] = '\0'; |
| 30 | return len + 1; |
| 31 | } |
| 32 | |
| 33 | int |
| 34 | str_to_mac ( |
| 35 | unsigned char * mac, |
| 36 | char * str |
| 37 | ) |
| 38 | { |
| 39 | int len; |
| 40 | char * ptr = str; |
| 41 | char buf[128]; |
| 42 | int i; |
| 43 | |
| 44 | for (i = 0; i < 5; i++) { |
| 45 | if ((len = getnext(ptr, ':', buf)) == -1) { |
| 46 | return 1; /* parse error */ |
| 47 | } |
| 48 | mac[i] = strtol(buf, NULL, 16); |
| 49 | ptr += len; |
| 50 | } |
| 51 | mac[5] = strtol(ptr, NULL, 16); |
| 52 | |
| 53 | return 0; |
| 54 | } |
| 55 | |
| 56 | int |
| 57 | str_to_ip ( |
| 58 | unsigned int * ip, |
| 59 | char * str |
| 60 | ) |
| 61 | { |
| 62 | int len; |
| 63 | char * ptr = str; |
| 64 | char buf[128]; |
| 65 | unsigned char c[4]; |
| 66 | int i; |
| 67 | |
| 68 | for (i = 0; i < 3; ++i) { |
| 69 | if ((len = getnext(ptr, '.', buf)) == -1) { |
| 70 | return 1; /* parse error */ |
| 71 | } |
| 72 | c[i] = atoi(buf); |
| 73 | ptr += len; |
| 74 | } |
| 75 | c[3] = atoi(ptr); |
| 76 | *ip = (c[0]<<24) + (c[1]<<16) + (c[2]<<8) + c[3]; |
| 77 | return 0; |
| 78 | } |
| 79 | |
| 80 | int |
| 81 | str_to_ipv6 ( |
| 82 | unsigned int * ipv6, |
| 83 | char * str, |
| 84 | unsigned int byte) |
| 85 | { |
| 86 | int len; |
| 87 | char * ptr = str; |
| 88 | char buf[128]; |
| 89 | unsigned short c[8]; |
| 90 | int i; |
| 91 | for (i = 0; i < 7; i++) { |
| 92 | |
| 93 | if ((len = getnext(ptr, ':', buf)) == -1) { |
| 94 | return 1; /* parse error */ |
| 95 | } |
| 96 | c[i] = strtoul(buf, NULL, 16); |
| 97 | ptr += len; |
| 98 | //printf("len=%d, c[%d]=%x\n",len, i, c[i]); |
| 99 | |
| 100 | } |
| 101 | c[7] = atoi(ptr); |
| 102 | *ipv6 = (c[2*byte] <<16) + (c[2*byte + 1]); |
| 103 | return 0; |
| 104 | } |
| 105 | |