Security-57336.1.9.tar.gz

[apple/security.git] / OSX / libsecurity_apple_csp / open_ssl / dsa / dsa_asn1.c

diff --git a/OSX/libsecurity_apple_csp/open_ssl/dsa/dsa_asn1.c b/OSX/libsecurity_apple_csp/open_ssl/dsa/dsa_asn1.c
new file mode 100644 (file)
index 0000000..1d6916d
--- /dev/null
+++ b/OSX/libsecurity_apple_csp/open_ssl/dsa/dsa_asn1.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved.
+ * 
+ * The contents of this file constitute Original Code as defined in and are
+ * subject to the Apple Public Source License Version 1.2 (the 'License').
+ * You may not use this file except in compliance with the License. Please obtain
+ * a copy of the License at http://www.apple.com/publicsource and read it before
+ * using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
+ * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
+ * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
+ * specific language governing rights and limitations under the License.
+ */
+
+
+/* crypto/dsa/dsa_asn1.c */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/dsa.h>
+#include <openssl/asn1.h>
+#ifndef        _OPENSSL_APPLE_CDSA_
+#include <openssl/asn1_mac.h>
+#endif
+
+DSA_SIG *DSA_SIG_new(void)
+{
+       DSA_SIG *ret;
+
+       ret = Malloc(sizeof(DSA_SIG));
+       if (ret == NULL)
+               {
+               DSAerr(DSA_F_DSA_SIG_NEW,ERR_R_MALLOC_FAILURE);
+               return(NULL);
+               }
+       ret->r = NULL;
+       ret->s = NULL;
+       return(ret);
+}
+
+void DSA_SIG_free(DSA_SIG *r)
+{
+       if (r == NULL) return;
+       if (r->r) BN_clear_free(r->r);
+       if (r->s) BN_clear_free(r->s);
+       Free(r);
+}
+
+#ifndef        _OPENSSL_APPLE_CDSA_
+
+int i2d_DSA_SIG(DSA_SIG *v, unsigned char **pp)
+{
+       int t=0,len;
+       ASN1_INTEGER rbs,sbs;
+       unsigned char *p;
+
+       rbs.data=Malloc(BN_num_bits(v->r)/8+1);
+       if (rbs.data == NULL)
+               {
+               DSAerr(DSA_F_I2D_DSA_SIG, ERR_R_MALLOC_FAILURE);
+               return(0);
+               }
+       rbs.type=V_ASN1_INTEGER;
+       rbs.length=BN_bn2bin(v->r,rbs.data);
+       sbs.data=Malloc(BN_num_bits(v->s)/8+1);
+       if (sbs.data == NULL)
+               {
+               Free(rbs.data);
+               DSAerr(DSA_F_I2D_DSA_SIG, ERR_R_MALLOC_FAILURE);
+               return(0);
+               }
+       sbs.type=V_ASN1_INTEGER;
+       sbs.length=BN_bn2bin(v->s,sbs.data);
+
+       len=i2d_ASN1_INTEGER(&rbs,NULL);
+       len+=i2d_ASN1_INTEGER(&sbs,NULL);
+
+       if (pp)
+               {
+               p=*pp;
+               ASN1_put_object(&p,1,len,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);
+               i2d_ASN1_INTEGER(&rbs,&p);
+               i2d_ASN1_INTEGER(&sbs,&p);
+               }
+       t=ASN1_object_size(1,len,V_ASN1_SEQUENCE);
+       Free(rbs.data);
+       Free(sbs.data);
+       return(t);
+}
+
+DSA_SIG *d2i_DSA_SIG(DSA_SIG **a, unsigned char **pp, long length)
+{
+       int i=ERR_R_NESTED_ASN1_ERROR;
+       ASN1_INTEGER *bs=NULL;
+       M_ASN1_D2I_vars(a,DSA_SIG *,DSA_SIG_new);
+
+       M_ASN1_D2I_Init();
+       M_ASN1_D2I_start_sequence();
+       M_ASN1_D2I_get(bs,d2i_ASN1_INTEGER);
+       if ((ret->r=BN_bin2bn(bs->data,bs->length,ret->r)) == NULL)
+               goto err_bn;
+       M_ASN1_D2I_get(bs,d2i_ASN1_INTEGER);
+       if ((ret->s=BN_bin2bn(bs->data,bs->length,ret->s)) == NULL)
+               goto err_bn;
+       M_ASN1_BIT_STRING_free(bs);
+       M_ASN1_D2I_Finish_2(a);
+
+err_bn:
+       i=ERR_R_BN_LIB;
+err:
+       DSAerr(DSA_F_D2I_DSA_SIG,i);
+       if ((ret != NULL) && ((a == NULL) || (*a != ret))) DSA_SIG_free(ret);
+       if (bs != NULL) M_ASN1_BIT_STRING_free(bs);
+       return(NULL);
+}
+
+#endif /* _OPENSSL_APPLE_CDSA_ */