1 files changed, 332 insertions, 0 deletions

diff --git a/src/lib/libcrypto/bn/bn_print.c b/src/lib/libcrypto/bn/bn_print.c
new file mode 100644
index 0000000000..5f46b1826c
--- /dev/null
+++ b/src/lib/libcrypto/bn/bn_print.c
@@ -0,0 +1,332 @@
+/* crypto/bn/bn_print.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+#include "cryptlib.h"
+#include <openssl/buffer.h>
+#include "bn_lcl.h"
+
+static const char *Hex="0123456789ABCDEF";
+
+/* Must 'OPENSSL_free' the returned data */
+char *BN_bn2hex(const BIGNUM *a)
+        {
+        int i,j,v,z=0;
+        char *buf;
+        char *p;
+
+        buf=(char *)OPENSSL_malloc(a->top*BN_BYTES*2+2);
+        if (buf == NULL)
+                {
+                BNerr(BN_F_BN_BN2HEX,ERR_R_MALLOC_FAILURE);
+                goto err;
+                }
+        p=buf;
+        if (a->neg) *(p++)='-';
+        if (a->top == 0) *(p++)='0';
+        for (i=a->top-1; i >=0; i--)
+                {
+                for (j=BN_BITS2-8; j >= 0; j-=8)
+                        {
+                        /* strip leading zeros */
+                        v=((int)(a->d[i]>>(long)j))&0xff;
+                        if (z || (v != 0))
+                                {
+                                *(p++)=Hex[v>>4];
+                                *(p++)=Hex[v&0x0f];
+                                z=1;
+                                }
+                        }
+                }
+        *p='\0';
+err:
+        return(buf);
+        }
+
+/* Must 'OPENSSL_free' the returned data */
+char *BN_bn2dec(const BIGNUM *a)
+        {
+        int i=0,num;
+        char *buf=NULL;
+        char *p;
+        BIGNUM *t=NULL;
+        BN_ULONG *bn_data=NULL,*lp;
+
+        i=BN_num_bits(a)*3;
+        num=(i/10+i/1000+3)+1;
+        bn_data=(BN_ULONG *)OPENSSL_malloc((num/BN_DEC_NUM+1)*sizeof(BN_ULONG));
+        buf=(char *)OPENSSL_malloc(num+3);
+        if ((buf == NULL) || (bn_data == NULL))
+                {
+                BNerr(BN_F_BN_BN2DEC,ERR_R_MALLOC_FAILURE);
+                goto err;
+                }
+        if ((t=BN_dup(a)) == NULL) goto err;
+
+        p=buf;
+        lp=bn_data;
+        if (t->neg) *(p++)='-';
+        if (t->top == 0)
+                {
+                *(p++)='0';
+                *(p++)='\0';
+                }
+        else
+                {
+                i=0;
+                while (!BN_is_zero(t))
+                        {
+                        *lp=BN_div_word(t,BN_DEC_CONV);
+                        lp++;
+                        }
+                lp--;
+                /* We now have a series of blocks, BN_DEC_NUM chars
+                 * in length, where the last one needs truncation.
+                 * The blocks need to be reversed in order. */
+                sprintf(p,BN_DEC_FMT1,*lp);
+                while (*p) p++;
+                while (lp != bn_data)
+                        {
+                        lp--;
+                        sprintf(p,BN_DEC_FMT2,*lp);
+                        while (*p) p++;
+                        }
+                }
+err:
+        if (bn_data != NULL) OPENSSL_free(bn_data);
+        if (t != NULL) BN_free(t);
+        return(buf);
+        }
+
+int BN_hex2bn(BIGNUM **bn, const char *a)
+        {
+        BIGNUM *ret=NULL;
+        BN_ULONG l=0;
+        int neg=0,h,m,i,j,k,c;
+        int num;
+
+        if ((a == NULL) || (*a == '\0')) return(0);
+
+        if (*a == '-') { neg=1; a++; }
+
+        for (i=0; isxdigit((unsigned char) a[i]); i++)
+                ;
+
+        num=i+neg;
+        if (bn == NULL) return(num);
+
+        /* a is the start of the hex digits, and it is 'i' long */
+        if (*bn == NULL)
+                {
+                if ((ret=BN_new()) == NULL) return(0);
+                }
+        else
+                {
+                ret= *bn;
+                BN_zero(ret);
+                }
+
+        /* i is the number of hex digests; */
+        if (bn_expand(ret,i*4) == NULL) goto err;
+
+        j=i; /* least significant 'hex' */
+        m=0;
+        h=0;
+        while (j > 0)
+                {
+                m=((BN_BYTES*2) <= j)?(BN_BYTES*2):j;
+                l=0;
+                for (;;)
+                        {
+                        c=a[j-m];
+                        if ((c >= '0') && (c <= '9')) k=c-'0';
+                        else if ((c >= 'a') && (c <= 'f')) k=c-'a'+10;
+                        else if ((c >= 'A') && (c <= 'F')) k=c-'A'+10;
+                        else k=0; /* paranoia */
+                        l=(l<<4)|k;
+
+                        if (--m <= 0)
+                                {
+                                ret->d[h++]=l;
+                                break;
+                                }
+                        }
+                j-=(BN_BYTES*2);
+                }
+        ret->top=h;
+        bn_fix_top(ret);
+        ret->neg=neg;
+
+        *bn=ret;
+        return(num);
+err:
+        if (*bn == NULL) BN_free(ret);
+        return(0);
+        }
+
+int BN_dec2bn(BIGNUM **bn, const char *a)
+        {
+        BIGNUM *ret=NULL;
+        BN_ULONG l=0;
+        int neg=0,i,j;
+        int num;
+
+        if ((a == NULL) || (*a == '\0')) return(0);
+        if (*a == '-') { neg=1; a++; }
+
+        for (i=0; isdigit((unsigned char) a[i]); i++)
+                ;
+
+        num=i+neg;
+        if (bn == NULL) return(num);
+
+        /* a is the start of the digits, and it is 'i' long.
+         * We chop it into BN_DEC_NUM digits at a time */
+        if (*bn == NULL)
+                {
+                if ((ret=BN_new()) == NULL) return(0);
+                }
+        else
+                {
+                ret= *bn;
+                BN_zero(ret);
+                }
+
+        /* i is the number of digests, a bit of an over expand; */
+        if (bn_expand(ret,i*4) == NULL) goto err;
+
+        j=BN_DEC_NUM-(i%BN_DEC_NUM);
+        if (j == BN_DEC_NUM) j=0;
+        l=0;
+        while (*a)
+                {
+                l*=10;
+                l+= *a-'0';
+                a++;
+                if (++j == BN_DEC_NUM)
+                        {
+                        BN_mul_word(ret,BN_DEC_CONV);
+                        BN_add_word(ret,l);
+                        l=0;
+                        j=0;
+                        }
+                }
+        ret->neg=neg;
+
+        bn_fix_top(ret);
+        *bn=ret;
+        return(num);
+err:
+        if (*bn == NULL) BN_free(ret);
+        return(0);
+        }
+
+#ifndef OPENSSL_NO_BIO
+#ifndef OPENSSL_NO_FP_API
+int BN_print_fp(FILE *fp, const BIGNUM *a)
+        {
+        BIO *b;
+        int ret;
+
+        if ((b=BIO_new(BIO_s_file())) == NULL)
+                return(0);
+        BIO_set_fp(b,fp,BIO_NOCLOSE);
+        ret=BN_print(b,a);
+        BIO_free(b);
+        return(ret);
+        }
+#endif
+
+int BN_print(BIO *bp, const BIGNUM *a)
+        {
+        int i,j,v,z=0;
+        int ret=0;
+
+        if ((a->neg) && (BIO_write(bp,"-",1) != 1)) goto end;
+        if ((a->top == 0) && (BIO_write(bp,"0",1) != 1)) goto end;
+        for (i=a->top-1; i >=0; i--)
+                {
+                for (j=BN_BITS2-4; j >= 0; j-=4)
+                        {
+                        /* strip leading zeros */
+                        v=((int)(a->d[i]>>(long)j))&0x0f;
+                        if (z || (v != 0))
+                                {
+                                if (BIO_write(bp,&(Hex[v]),1) != 1)
+                                        goto end;
+                                z=1;
+                                }
+                        }
+                }
+        ret=1;
+end:
+        return(ret);
+        }
+#endif
+
+#ifdef BN_DEBUG
+void bn_dump1(FILE *o, const char *a, const BN_ULONG *b,int n)
+        {
+        int i;
+        fprintf(o, "%s=", a);
+        for (i=n-1;i>=0;i--)
+                fprintf(o, "%08lX", b[i]); /* assumes 32-bit BN_ULONG */
+        fprintf(o, "\n");
+        }
+#endif