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-rw-r--r--mpi/mpiutil.c471
1 files changed, 0 insertions, 471 deletions
diff --git a/mpi/mpiutil.c b/mpi/mpiutil.c
deleted file mode 100644
index 04e280caa..000000000
--- a/mpi/mpiutil.c
+++ /dev/null
@@ -1,471 +0,0 @@
-/* mpiutil.ac - Utility functions for MPI
- * Copyright (C) 1998, 1999 Free Software Foundation, Inc.
- *
- * This file is part of GnuPG.
- *
- * GnuPG is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * GnuPG is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-#include <config.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-
-#include "mpi.h"
-#include "mpi-internal.h"
-#include "memory.h"
-#include "util.h"
-
-
-#ifdef M_DEBUG
- #undef mpi_alloc
- #undef mpi_alloc_secure
- #undef mpi_free
-#endif
-
-/****************
- * Note: It was a bad idea to use the number of limbs to allocate
- * because on a alpha the limbs are large but we normally need
- * integers of n bits - So we should chnage this to bits (or bytes).
- *
- * But mpi_alloc is used in a lot of places :-)
- */
-MPI
-#ifdef M_DEBUG
-mpi_debug_alloc( unsigned nlimbs, const char *info )
-#else
-mpi_alloc( unsigned nlimbs )
-#endif
-{
- MPI a;
-
- if( DBG_MEMORY )
- log_debug("mpi_alloc(%u)\n", nlimbs*BITS_PER_MPI_LIMB );
- #ifdef M_DEBUG
- a = m_debug_alloc( sizeof *a, info );
- a->d = nlimbs? mpi_debug_alloc_limb_space( nlimbs, 0, info ) : NULL;
- #else
- a = m_alloc( sizeof *a );
- a->d = nlimbs? mpi_alloc_limb_space( nlimbs, 0 ) : NULL;
- #endif
- a->alloced = nlimbs;
- a->nlimbs = 0;
- a->sign = 0;
- a->flags = 0;
- a->nbits = 0;
- return a;
-}
-
-void
-mpi_m_check( MPI a )
-{
- m_check(a);
- m_check(a->d);
-}
-
-MPI
-#ifdef M_DEBUG
-mpi_debug_alloc_secure( unsigned nlimbs, const char *info )
-#else
-mpi_alloc_secure( unsigned nlimbs )
-#endif
-{
- MPI a;
-
- if( DBG_MEMORY )
- log_debug("mpi_alloc_secure(%u)\n", nlimbs*BITS_PER_MPI_LIMB );
- #ifdef M_DEBUG
- a = m_debug_alloc( sizeof *a, info );
- a->d = nlimbs? mpi_debug_alloc_limb_space( nlimbs, 1, info ) : NULL;
- #else
- a = m_alloc( sizeof *a );
- a->d = nlimbs? mpi_alloc_limb_space( nlimbs, 1 ) : NULL;
- #endif
- a->alloced = nlimbs;
- a->flags = 1;
- a->nlimbs = 0;
- a->sign = 0;
- a->nbits = 0;
- return a;
-}
-
-
-#if 0
-static void *unused_limbs_5;
-static void *unused_limbs_32;
-static void *unused_limbs_64;
-#endif
-
-mpi_ptr_t
-#ifdef M_DEBUG
-mpi_debug_alloc_limb_space( unsigned nlimbs, int secure, const char *info )
-#else
-mpi_alloc_limb_space( unsigned nlimbs, int secure )
-#endif
-{
- size_t len = nlimbs * sizeof(mpi_limb_t);
- mpi_ptr_t p;
-
- if( DBG_MEMORY )
- log_debug("mpi_alloc_limb_space(%u)\n", (unsigned)len*8 );
- #if 0
- if( !secure ) {
- if( nlimbs == 5 && unused_limbs_5 ) { /* DSA 160 bits */
- p = unused_limbs_5;
- unused_limbs_5 = *p;
- return p;
- }
- else if( nlimbs == 32 && unused_limbs_32 ) { /* DSA 1024 bits */
- p = unused_limbs_32;
- unused_limbs_32 = *p;
- return p;
- }
- else if( nlimbs == 64 && unused_limbs_64 ) { /* DSA 2*1024 bits */
- p = unused_limbs_64;
- unused_limbs_64 = *p;
- return p;
- }
- }
- #endif
-
- #ifdef M_DEBUG
- p = secure? m_debug_alloc_secure(len, info):m_debug_alloc( len, info );
- #else
- p = secure? m_alloc_secure( len ):m_alloc( len );
- #endif
-
- return p;
-}
-
-void
-#ifdef M_DEBUG
-mpi_debug_free_limb_space( mpi_ptr_t a, const char *info )
-#else
-mpi_free_limb_space( mpi_ptr_t a )
-#endif
-{
- if( !a )
- return;
- if( DBG_MEMORY )
- log_debug("mpi_free_limb_space of size %lu\n", (ulong)m_size(a)*8 );
-
- #if 0
- if( !m_is_secure(a) ) {
- size_t nlimbs = m_size(a) / 4 ;
- void *p = a;
-
- if( nlimbs == 5 ) { /* DSA 160 bits */
- *a = unused_limbs_5;
- unused_limbs_5 = a;
- return;
- }
- else if( nlimbs == 32 ) { /* DSA 1024 bits */
- *a = unused_limbs_32;
- unused_limbs_32 = a;
- return;
- }
- else if( nlimbs == 64 ) { /* DSA 2*1024 bits */
- *a = unused_limbs_64;
- unused_limbs_64 = a;
- return;
- }
- }
- #endif
-
-
- m_free(a);
-}
-
-
-void
-mpi_assign_limb_space( MPI a, mpi_ptr_t ap, unsigned nlimbs )
-{
- mpi_free_limb_space(a->d);
- a->d = ap;
- a->alloced = nlimbs;
-}
-
-
-
-/****************
- * Resize the array of A to NLIMBS. the additional space is cleared
- * (set to 0) [done by m_realloc()]
- */
-void
-#ifdef M_DEBUG
-mpi_debug_resize( MPI a, unsigned nlimbs, const char *info )
-#else
-mpi_resize( MPI a, unsigned nlimbs )
-#endif
-{
- if( nlimbs <= a->alloced )
- return; /* no need to do it */
- /* Note: a->secure is not used - instead the realloc functions
- * take care of it. Maybe we should drop a->secure completely
- * and rely on a mpi_is_secure function, which would be
- * a wrapper around m_is_secure
- */
- #ifdef M_DEBUG
- if( a->d )
- a->d = m_debug_realloc(a->d, nlimbs * sizeof(mpi_limb_t), info );
- else
- a->d = m_debug_alloc_clear( nlimbs * sizeof(mpi_limb_t), info );
- #else
- if( a->d )
- a->d = m_realloc(a->d, nlimbs * sizeof(mpi_limb_t) );
- else
- a->d = m_alloc_clear( nlimbs * sizeof(mpi_limb_t) );
- #endif
- a->alloced = nlimbs;
-}
-
-void
-mpi_clear( MPI a )
-{
- a->nlimbs = 0;
- a->nbits = 0;
- a->flags = 0;
-}
-
-
-void
-#ifdef M_DEBUG
-mpi_debug_free( MPI a, const char *info )
-#else
-mpi_free( MPI a )
-#endif
-{
- if( !a )
- return;
- if( DBG_MEMORY )
- log_debug("mpi_free\n" );
- if( a->flags & 4 )
- m_free( a->d );
- else {
- #ifdef M_DEBUG
- mpi_debug_free_limb_space(a->d, info);
- #else
- mpi_free_limb_space(a->d);
- #endif
- }
- if( a->flags & ~7 )
- log_bug("invalid flag value in mpi\n");
- m_free(a);
-}
-
-
-void
-mpi_set_secure( MPI a )
-{
- mpi_ptr_t ap, bp;
-
- if( (a->flags & 1) )
- return;
- a->flags |= 1;
- ap = a->d;
- if( !a->nlimbs ) {
- assert(!ap);
- return;
- }
- #ifdef M_DEBUG
- bp = mpi_debug_alloc_limb_space( a->nlimbs, 1, "set_secure" );
- #else
- bp = mpi_alloc_limb_space( a->nlimbs, 1 );
- #endif
- MPN_COPY( bp, ap, a->nlimbs );
- a->d = bp;
- #ifdef M_DEBUG
- mpi_debug_free_limb_space(ap, "set_secure");
- #else
- mpi_free_limb_space(ap);
- #endif
-}
-
-
-MPI
-mpi_set_opaque( MPI a, void *p, int len )
-{
- if( !a ) {
- #ifdef M_DEBUG
- a = mpi_debug_alloc(0,"alloc_opaque");
- #else
- a = mpi_alloc(0);
- #endif
- }
-
- if( a->flags & 4 )
- m_free( a->d );
- else {
- #ifdef M_DEBUG
- mpi_debug_free_limb_space(a->d, "alloc_opaque");
- #else
- mpi_free_limb_space(a->d);
- #endif
- }
-
- a->d = p;
- a->alloced = 0;
- a->nlimbs = 0;
- a->nbits = len;
- a->flags = 4;
- return a;
-}
-
-
-void *
-mpi_get_opaque( MPI a, int *len )
-{
- if( !(a->flags & 4) )
- log_bug("mpi_get_opaque on normal mpi\n");
- if( len )
- *len = a->nbits;
- return a->d;
-}
-
-
-/****************
- * Note: This copy function should not interpret the MPI
- * but copy it transparently.
- */
-MPI
-#ifdef M_DEBUG
-mpi_debug_copy( MPI a, const char *info )
-#else
-mpi_copy( MPI a )
-#endif
-{
- int i;
- MPI b;
-
- if( a && (a->flags & 4) ) {
- void *p = m_is_secure(a->d)? m_alloc_secure( a->nbits )
- : m_alloc( a->nbits );
- memcpy( p, a->d, a->nbits );
- b = mpi_set_opaque( NULL, p, a->nbits );
- }
- else if( a ) {
- #ifdef M_DEBUG
- b = mpi_is_secure(a)? mpi_debug_alloc_secure( a->nlimbs, info )
- : mpi_debug_alloc( a->nlimbs, info );
- #else
- b = mpi_is_secure(a)? mpi_alloc_secure( a->nlimbs )
- : mpi_alloc( a->nlimbs );
- #endif
- b->nlimbs = a->nlimbs;
- b->sign = a->sign;
- b->flags = a->flags;
- b->nbits = a->nbits;
- for(i=0; i < b->nlimbs; i++ )
- b->d[i] = a->d[i];
- }
- else
- b = NULL;
- return b;
-}
-
-
-/****************
- * This function allocates an MPI which is optimized to hold
- * a value as large as the one given in the arhgument and allocates it
- * with the same flags as A.
- */
-MPI
-#ifdef M_DEBUG
-mpi_debug_alloc_like( MPI a, const char *info )
-#else
-mpi_alloc_like( MPI a )
-#endif
-{
- MPI b;
-
- if( a && (a->flags & 4) ) {
- void *p = m_is_secure(a->d)? m_alloc_secure( a->nbits )
- : m_alloc( a->nbits );
- memcpy( p, a->d, a->nbits );
- b = mpi_set_opaque( NULL, p, a->nbits );
- }
- else if( a ) {
- #ifdef M_DEBUG
- b = mpi_is_secure(a)? mpi_debug_alloc_secure( a->nlimbs, info )
- : mpi_debug_alloc( a->nlimbs, info );
- #else
- b = mpi_is_secure(a)? mpi_alloc_secure( a->nlimbs )
- : mpi_alloc( a->nlimbs );
- #endif
- b->nlimbs = 0;
- b->sign = 0;
- b->flags = a->flags;
- b->nbits = 0;
- }
- else
- b = NULL;
- return b;
-}
-
-
-void
-mpi_set( MPI w, MPI u)
-{
- mpi_ptr_t wp, up;
- mpi_size_t usize = u->nlimbs;
- int usign = u->sign;
-
- RESIZE_IF_NEEDED(w, usize);
- wp = w->d;
- up = u->d;
- MPN_COPY( wp, up, usize );
- w->nlimbs = usize;
- w->nbits = u->nbits;
- w->flags = u->flags;
- w->sign = usign;
-}
-
-
-void
-mpi_set_ui( MPI w, unsigned long u)
-{
- RESIZE_IF_NEEDED(w, 1);
- w->d[0] = u;
- w->nlimbs = u? 1:0;
- w->sign = 0;
- w->nbits = 0;
- w->flags = 0;
-}
-
-
-MPI
-mpi_alloc_set_ui( unsigned long u)
-{
- #ifdef M_DEBUG
- MPI w = mpi_debug_alloc(1,"alloc_set_ui");
- #else
- MPI w = mpi_alloc(1);
- #endif
- w->d[0] = u;
- w->nlimbs = u? 1:0;
- w->sign = 0;
- return w;
-}
-
-
-void
-mpi_swap( MPI a, MPI b)
-{
- struct gcry_mpi tmp;
-
- tmp = *a; *a = *b; *b = tmp;
-}
-
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