diff options
Diffstat (limited to 'lib/util')
-rw-r--r-- | lib/util/util.c | 33 |
1 files changed, 6 insertions, 27 deletions
diff --git a/lib/util/util.c b/lib/util/util.c index 3ca6b61df32..57f19aaa1a1 100644 --- a/lib/util/util.c +++ b/lib/util/util.c @@ -879,42 +879,21 @@ _PUBLIC_ size_t strhex_to_str(char *p, size_t p_len, const char *strhex, size_t { size_t i = 0; size_t num_chars = 0; - uint8_t lonybble, hinybble; - const char *hexchars = "0123456789ABCDEF"; - char *p1 = NULL, *p2 = NULL; /* skip leading 0x prefix */ if (strncasecmp(strhex, "0x", 2) == 0) { i += 2; /* skip two chars */ } - for (; i+1 < strhex_len && strhex[i] != 0 && strhex[i+1] != 0; i++) { - p1 = strchr(hexchars, toupper((unsigned char)strhex[i])); - if (p1 == NULL) { + while ((i < strhex_len) && (num_chars < p_len)) { + bool ok = hex_byte(&strhex[i], (uint8_t *)&p[num_chars]); + if (!ok) { break; } - - i++; /* next hex digit */ - - p2 = strchr(hexchars, toupper((unsigned char)strhex[i])); - if (p2 == NULL) { - break; - } - - /* get the two nybbles */ - hinybble = PTR_DIFF(p1, hexchars); - lonybble = PTR_DIFF(p2, hexchars); - - if (num_chars >= p_len) { - break; - } - - p[num_chars] = (hinybble << 4) | lonybble; - num_chars++; - - p1 = NULL; - p2 = NULL; + i += 2; + num_chars += 1; } + return num_chars; } |