diff options
| -rw-r--r-- | libpiano/src/crypt.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/libpiano/src/crypt.c b/libpiano/src/crypt.c index eef1057..43edd0c 100644 --- a/libpiano/src/crypt.c +++ b/libpiano/src/crypt.c @@ -38,15 +38,12 @@ THE SOFTWARE. void PianoHexToInts (const char *strHex, unsigned int **retInts, size_t *retIntsN) { size_t i, strHexN = strlen (strHex); - char hexInt[9]; unsigned int *arrInts = calloc (strHexN / 8, sizeof (*arrInts)); - /* FIXME: error handling: string too short, e.g. */ /* unsigned int = 4 bytes, 8 chars in hex */ - for (i = 0; i < strHexN; i += 8) { - memcpy (hexInt, strHex+i, sizeof (hexInt)-1); - hexInt[sizeof (hexInt) - 1] = 0; - sscanf (hexInt, "%x", &arrInts[i/8]); + for (i = 0; i < strHexN; i++) { + arrInts[i/8] |= ((strHex[i] < 'a' ? strHex[i]: strHex[i] + 9) & + 0x0f) << (7*4 - i*4); } *retInts = arrInts; *retIntsN = strHexN / 8; |