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OPENSSL_SYS_WIN32 is important so util/mkdef.pl can detect it
[oweals/openssl.git]
/
crypto
/
bn
/
bn_shift.c
diff --git
a/crypto/bn/bn_shift.c
b/crypto/bn/bn_shift.c
index 37c6988da3dfdb1d358855a1a1d3802e3d554837..70f785ea185b8841e415d33b385bf96de95535be 100644
(file)
--- a/
crypto/bn/bn_shift.c
+++ b/
crypto/bn/bn_shift.c
@@
-172,6
+172,11
@@
int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)
r->neg=a->neg;
if (bn_wexpand(r,a->top-nw+1) == NULL) return(0);
}
+ else
+ {
+ if (n == 0)
+ return 1; /* or the copying loop will go berserk */
+ }
f= &(a->d[nw]);
t=r->d;