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Import fmt_scaled.c rev 1.15 from OpenBSD.

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Collapse underflow and overflow checks into a single block.
ok djm@ millert@
This commit is contained in:
Darren Tucker 2017-03-29 16:34:02 +11:00
parent d427b73bf5
commit c73a229e4e
1 changed files with 4 additions and 7 deletions
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11
openbsd-compat/fmt_scaled.c
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@ -1,4 +1,4 @@
/* $OpenBSD: fmt_scaled.c,v 1.14 2017/03/15 00:13:18 dtucker Exp $ */ /* $OpenBSD: fmt_scaled.c,v 1.15 2017/03/15 05:25:56 dtucker Exp $ */
/* /*
* Copyright (c) 2001, 2002, 2003 Ian F. Darwin. All rights reserved. * Copyright (c) 2001, 2002, 2003 Ian F. Darwin. All rights reserved.
@ -170,12 +170,9 @@ scan_scaled(char *scaled, long long *result)
} }
scale_fact = scale_factors[i]; scale_fact = scale_factors[i];
if (whole >= LLONG_MAX / scale_fact) { /* check for overflow and underflow after scaling */
errno = ERANGE; if (whole > LLONG_MAX / scale_fact ||
return -1; whole < LLONG_MIN / scale_fact) {
}
if (whole <= LLONG_MIN / scale_fact) {
errno = ERANGE; errno = ERANGE;
return -1; return -1;
} }