diff options
| -rw-r--r-- | miscutils/bc.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index eaa28a94a..2da7c317c 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -5256,11 +5256,18 @@ exec_err: static size_t bc_program_index(char *code, size_t *bgn) { - char amt = code[(*bgn)++], i = 0; - size_t res = 0; + unsigned char *bytes = (void*)(code + *bgn); + unsigned amt; + unsigned i; + size_t res; + + amt = *bytes++; + *bgn += amt + 1; - for (; i < amt; ++i, ++(*bgn)) - res |= (((size_t)((int) code[*bgn]) & UCHAR_MAX) << (i * CHAR_BIT)); + amt *= 8; + res = 0; + for (i = 0; i < amt; i += 8) + res |= (size_t)(*bytes++) << i; return res; } |