Harald Welte | d284cd9 | 2010-03-01 21:58:31 +0100 | [diff] [blame] | 1 | |
| 2 | #include <string.h> |
| 3 | #include <stdint.h> |
| 4 | #include <errno.h> |
Harald Welte | b59f935 | 2010-03-25 11:37:04 +0800 | [diff] [blame] | 5 | #include <stdio.h> |
Harald Welte | d284cd9 | 2010-03-01 21:58:31 +0100 | [diff] [blame] | 6 | |
| 7 | #include <osmocore/utils.h> |
| 8 | |
Harald Welte | b59f935 | 2010-03-25 11:37:04 +0800 | [diff] [blame] | 9 | static char namebuf[255]; |
Harald Welte | d284cd9 | 2010-03-01 21:58:31 +0100 | [diff] [blame] | 10 | const char *get_value_string(const struct value_string *vs, uint32_t val) |
| 11 | { |
| 12 | int i; |
| 13 | |
| 14 | for (i = 0;; i++) { |
| 15 | if (vs[i].value == 0 && vs[i].str == NULL) |
| 16 | break; |
| 17 | if (vs[i].value == val) |
| 18 | return vs[i].str; |
| 19 | } |
Harald Welte | b59f935 | 2010-03-25 11:37:04 +0800 | [diff] [blame] | 20 | |
| 21 | snprintf(namebuf, sizeof(namebuf), "unknown 0x%x", val); |
| 22 | return namebuf; |
Harald Welte | d284cd9 | 2010-03-01 21:58:31 +0100 | [diff] [blame] | 23 | } |
| 24 | |
| 25 | int get_string_value(const struct value_string *vs, const char *str) |
| 26 | { |
| 27 | int i; |
| 28 | |
| 29 | for (i = 0;; i++) { |
| 30 | if (vs[i].value == 0 && vs[i].str == NULL) |
| 31 | break; |
| 32 | if (!strcasecmp(vs[i].str, str)) |
| 33 | return vs[i].value; |
| 34 | } |
| 35 | return -EINVAL; |
| 36 | } |
Harald Welte | a73e2f9 | 2010-03-04 10:50:32 +0100 | [diff] [blame] | 37 | |
| 38 | char bcd2char(uint8_t bcd) |
| 39 | { |
| 40 | if (bcd < 0xa) |
| 41 | return '0' + bcd; |
| 42 | else |
| 43 | return 'A' + (bcd - 0xa); |
| 44 | } |
| 45 | |
Holger Hans Peter Freyther | 121f358 | 2010-11-19 19:20:46 +0100 | [diff] [blame] | 46 | /* only works for numbers in ascii */ |
Harald Welte | a73e2f9 | 2010-03-04 10:50:32 +0100 | [diff] [blame] | 47 | uint8_t char2bcd(char c) |
| 48 | { |
| 49 | return c - 0x30; |
| 50 | } |
Harald Welte | 3eba991 | 2010-07-30 10:37:29 +0200 | [diff] [blame] | 51 | |
| 52 | int hexparse(const char *str, uint8_t *b, int max_len) |
| 53 | |
| 54 | { |
| 55 | int i, l, v; |
| 56 | |
| 57 | l = strlen(str); |
| 58 | if ((l&1) || ((l>>1) > max_len)) |
| 59 | return -1; |
| 60 | |
| 61 | memset(b, 0x00, max_len); |
| 62 | |
| 63 | for (i=0; i<l; i++) { |
| 64 | char c = str[i]; |
| 65 | if (c >= '0' && c <= '9') |
| 66 | v = c - '0'; |
| 67 | else if (c >= 'a' && c <= 'f') |
| 68 | v = 10 + (c - 'a'); |
| 69 | else if (c >= 'A' && c <= 'F') |
| 70 | v = 10 + (c - 'A'); |
| 71 | else |
| 72 | return -1; |
| 73 | b[i>>1] |= v << (i&1 ? 0 : 4); |
| 74 | } |
| 75 | |
| 76 | return i>>1; |
| 77 | } |
Harald Welte | 40481e8 | 2010-07-30 11:40:32 +0200 | [diff] [blame] | 78 | |
| 79 | static char hexd_buff[4096]; |
| 80 | |
Harald Welte | dee47cd | 2010-07-30 11:43:30 +0200 | [diff] [blame] | 81 | static char *_hexdump(const unsigned char *buf, int len, char *delim) |
Harald Welte | 40481e8 | 2010-07-30 11:40:32 +0200 | [diff] [blame] | 82 | { |
| 83 | int i; |
| 84 | char *cur = hexd_buff; |
| 85 | |
| 86 | hexd_buff[0] = 0; |
| 87 | for (i = 0; i < len; i++) { |
| 88 | int len_remain = sizeof(hexd_buff) - (cur - hexd_buff); |
Harald Welte | dee47cd | 2010-07-30 11:43:30 +0200 | [diff] [blame] | 89 | int rc = snprintf(cur, len_remain, "%02x%s", buf[i], delim); |
Harald Welte | 40481e8 | 2010-07-30 11:40:32 +0200 | [diff] [blame] | 90 | if (rc <= 0) |
| 91 | break; |
| 92 | cur += rc; |
| 93 | } |
| 94 | hexd_buff[sizeof(hexd_buff)-1] = 0; |
| 95 | return hexd_buff; |
| 96 | } |
Harald Welte | dee47cd | 2010-07-30 11:43:30 +0200 | [diff] [blame] | 97 | |
| 98 | char *hexdump(const unsigned char *buf, int len) |
| 99 | { |
| 100 | return _hexdump(buf, len, " "); |
| 101 | } |
| 102 | |
| 103 | char *hexdump_nospc(const unsigned char *buf, int len) |
| 104 | { |
| 105 | return _hexdump(buf, len, ""); |
| 106 | } |