| |
| #include <string.h> |
| #include <stdint.h> |
| #include <errno.h> |
| #include <stdio.h> |
| |
| #include <osmocore/utils.h> |
| |
| static char namebuf[255]; |
| const char *get_value_string(const struct value_string *vs, uint32_t val) |
| { |
| int i; |
| |
| for (i = 0;; i++) { |
| if (vs[i].value == 0 && vs[i].str == NULL) |
| break; |
| if (vs[i].value == val) |
| return vs[i].str; |
| } |
| |
| snprintf(namebuf, sizeof(namebuf), "unknown 0x%x", val); |
| return namebuf; |
| } |
| |
| int get_string_value(const struct value_string *vs, const char *str) |
| { |
| int i; |
| |
| for (i = 0;; i++) { |
| if (vs[i].value == 0 && vs[i].str == NULL) |
| break; |
| if (!strcasecmp(vs[i].str, str)) |
| return vs[i].value; |
| } |
| return -EINVAL; |
| } |
| |
| char bcd2char(uint8_t bcd) |
| { |
| if (bcd < 0xa) |
| return '0' + bcd; |
| else |
| return 'A' + (bcd - 0xa); |
| } |
| |
| /* only works for numbers in ascci */ |
| uint8_t char2bcd(char c) |
| { |
| return c - 0x30; |
| } |
| |
| int hexparse(const char *str, uint8_t *b, int max_len) |
| |
| { |
| int i, l, v; |
| |
| l = strlen(str); |
| if ((l&1) || ((l>>1) > max_len)) |
| return -1; |
| |
| memset(b, 0x00, max_len); |
| |
| for (i=0; i<l; i++) { |
| char c = str[i]; |
| if (c >= '0' && c <= '9') |
| v = c - '0'; |
| else if (c >= 'a' && c <= 'f') |
| v = 10 + (c - 'a'); |
| else if (c >= 'A' && c <= 'F') |
| v = 10 + (c - 'A'); |
| else |
| return -1; |
| b[i>>1] |= v << (i&1 ? 0 : 4); |
| } |
| |
| return i>>1; |
| } |
| |
| static char hexd_buff[4096]; |
| |
| static char *_hexdump(const unsigned char *buf, int len, char *delim) |
| { |
| int i; |
| char *cur = hexd_buff; |
| |
| hexd_buff[0] = 0; |
| for (i = 0; i < len; i++) { |
| int len_remain = sizeof(hexd_buff) - (cur - hexd_buff); |
| int rc = snprintf(cur, len_remain, "%02x%s", buf[i], delim); |
| if (rc <= 0) |
| break; |
| cur += rc; |
| } |
| hexd_buff[sizeof(hexd_buff)-1] = 0; |
| return hexd_buff; |
| } |
| |
| char *hexdump(const unsigned char *buf, int len) |
| { |
| return _hexdump(buf, len, " "); |
| } |
| |
| char *hexdump_nospc(const unsigned char *buf, int len) |
| { |
| return _hexdump(buf, len, ""); |
| } |