diff options
Diffstat (limited to 'mpi/mpicoder.c')
| -rw-r--r-- | mpi/mpicoder.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mpi/mpicoder.c b/mpi/mpicoder.c index f005521d..3051b410 100644 --- a/mpi/mpicoder.c +++ b/mpi/mpicoder.c @@ -221,12 +221,14 @@ do_get_buffer( MPI a, unsigned *nbytes, int *sign, int force_secure ) byte *p, *buffer; mpi_limb_t alimb; int i; + size_t n; if( sign ) *sign = a->sign; *nbytes = a->nlimbs * BYTES_PER_MPI_LIMB; - p = buffer = force_secure || mpi_is_secure(a) ? gcry_xmalloc_secure( *nbytes) - : gcry_xmalloc( *nbytes ); + n = *nbytes? *nbytes:1; /* allocate at least one byte */ + p = buffer = force_secure || mpi_is_secure(a) ? gcry_xmalloc_secure(n) + : gcry_xmalloc(n); for(i=a->nlimbs-1; i >= 0; i-- ) { alimb = a->d[i]; |