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authorMatt Johnston <matt@ucc.asn.au>2020-06-26 21:07:34 +0800
committerMatt Johnston <matt@ucc.asn.au>2020-06-26 21:07:34 +0800
commit71b4ec569cb33a5dcd4abf50650ccd78e6d3b2dd (patch)
tree497adde943fd41206f8d263131b255dda1833ca1 /libtommath/bn_mp_dr_is_modulus.c
parent3187f27fcd533b8d16feebba9090007c82725eff (diff)
parenteaf9be05d7d9de22f2ff936882874331fc2d1a0e (diff)
downloaddropbear-71b4ec569cb33a5dcd4abf50650ccd78e6d3b2dd.tar.gz
merge coverity from maincoverity
Diffstat (limited to 'libtommath/bn_mp_dr_is_modulus.c')
-rw-r--r--libtommath/bn_mp_dr_is_modulus.c34
1 files changed, 9 insertions, 25 deletions
diff --git a/libtommath/bn_mp_dr_is_modulus.c b/libtommath/bn_mp_dr_is_modulus.c
index ced330c..83760ea 100644
--- a/libtommath/bn_mp_dr_is_modulus.c
+++ b/libtommath/bn_mp_dr_is_modulus.c
@@ -1,43 +1,27 @@
-#include <tommath_private.h>
+#include "tommath_private.h"
#ifdef BN_MP_DR_IS_MODULUS_C
-/* LibTomMath, multiple-precision integer library -- Tom St Denis
- *
- * LibTomMath is a library that provides multiple-precision
- * integer arithmetic as well as number theoretic functionality.
- *
- * The library was designed directly after the MPI library by
- * Michael Fromberger but has been written from scratch with
- * additional optimizations in place.
- *
- * The library is free for all purposes without any express
- * guarantee it works.
- *
- * Tom St Denis, tstdenis82@gmail.com, http://libtom.org
- */
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
/* determines if a number is a valid DR modulus */
-int mp_dr_is_modulus(mp_int *a)
+mp_bool mp_dr_is_modulus(const mp_int *a)
{
int ix;
/* must be at least two digits */
if (a->used < 2) {
- return 0;
+ return MP_NO;
}
/* must be of the form b**k - a [a <= b] so all
* but the first digit must be equal to -1 (mod b).
*/
for (ix = 1; ix < a->used; ix++) {
- if (a->dp[ix] != MP_MASK) {
- return 0;
- }
+ if (a->dp[ix] != MP_MASK) {
+ return MP_NO;
+ }
}
- return 1;
+ return MP_YES;
}
#endif
-
-/* ref: $Format:%D$ */
-/* git commit: $Format:%H$ */
-/* commit time: $Format:%ai$ */