diff options
Diffstat (limited to 'src/lib/libcrypto/asn1/f_int.c')
| -rw-r--r-- | src/lib/libcrypto/asn1/f_int.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/lib/libcrypto/asn1/f_int.c b/src/lib/libcrypto/asn1/f_int.c new file mode 100644 index 0000000000..4817c45cb7 --- /dev/null +++ b/src/lib/libcrypto/asn1/f_int.c | |||
| @@ -0,0 +1,211 @@ | |||
| 1 | /* crypto/asn1/f_int.c */ | ||
| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
| 3 | * All rights reserved. | ||
| 4 | * | ||
| 5 | * This package is an SSL implementation written | ||
| 6 | * by Eric Young (eay@cryptsoft.com). | ||
| 7 | * The implementation was written so as to conform with Netscapes SSL. | ||
| 8 | * | ||
| 9 | * This library is free for commercial and non-commercial use as long as | ||
| 10 | * the following conditions are aheared to. The following conditions | ||
| 11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
| 13 | * included with this distribution is covered by the same copyright terms | ||
| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
| 15 | * | ||
| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
| 17 | * the code are not to be removed. | ||
| 18 | * If this package is used in a product, Eric Young should be given attribution | ||
| 19 | * as the author of the parts of the library used. | ||
| 20 | * This can be in the form of a textual message at program startup or | ||
| 21 | * in documentation (online or textual) provided with the package. | ||
| 22 | * | ||
| 23 | * Redistribution and use in source and binary forms, with or without | ||
| 24 | * modification, are permitted provided that the following conditions | ||
| 25 | * are met: | ||
| 26 | * 1. Redistributions of source code must retain the copyright | ||
| 27 | * notice, this list of conditions and the following disclaimer. | ||
| 28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 29 | * notice, this list of conditions and the following disclaimer in the | ||
| 30 | * documentation and/or other materials provided with the distribution. | ||
| 31 | * 3. All advertising materials mentioning features or use of this software | ||
| 32 | * must display the following acknowledgement: | ||
| 33 | * "This product includes cryptographic software written by | ||
| 34 | * Eric Young (eay@cryptsoft.com)" | ||
| 35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
| 36 | * being used are not cryptographic related :-). | ||
| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
| 38 | * the apps directory (application code) you must include an acknowledgement: | ||
| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
| 40 | * | ||
| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 51 | * SUCH DAMAGE. | ||
| 52 | * | ||
| 53 | * The licence and distribution terms for any publically available version or | ||
| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
| 55 | * copied and put under another distribution licence | ||
| 56 | * [including the GNU Public Licence.] | ||
| 57 | */ | ||
| 58 | |||
| 59 | #include <stdio.h> | ||
| 60 | #include "cryptlib.h" | ||
| 61 | #include "buffer.h" | ||
| 62 | #include "x509.h" | ||
| 63 | |||
| 64 | int i2a_ASN1_INTEGER(bp, a) | ||
| 65 | BIO *bp; | ||
| 66 | ASN1_INTEGER *a; | ||
| 67 | { | ||
| 68 | int i,n=0; | ||
| 69 | static char *h="0123456789ABCDEF"; | ||
| 70 | char buf[2]; | ||
| 71 | |||
| 72 | if (a == NULL) return(0); | ||
| 73 | |||
| 74 | if (a->length == 0) | ||
| 75 | { | ||
| 76 | if (BIO_write(bp,"00",2) != 2) goto err; | ||
| 77 | n=2; | ||
| 78 | } | ||
| 79 | else | ||
| 80 | { | ||
| 81 | for (i=0; i<a->length; i++) | ||
| 82 | { | ||
| 83 | if ((i != 0) && (i%35 == 0)) | ||
| 84 | { | ||
| 85 | if (BIO_write(bp,"\\\n",2) != 2) goto err; | ||
| 86 | n+=2; | ||
| 87 | } | ||
| 88 | buf[0]=h[((unsigned char)a->data[i]>>4)&0x0f]; | ||
| 89 | buf[1]=h[((unsigned char)a->data[i] )&0x0f]; | ||
| 90 | if (BIO_write(bp,buf,2) != 2) goto err; | ||
| 91 | n+=2; | ||
| 92 | } | ||
| 93 | } | ||
| 94 | return(n); | ||
| 95 | err: | ||
| 96 | return(-1); | ||
| 97 | } | ||
| 98 | |||
| 99 | int a2i_ASN1_INTEGER(bp,bs,buf,size) | ||
| 100 | BIO *bp; | ||
| 101 | ASN1_INTEGER *bs; | ||
| 102 | char *buf; | ||
| 103 | int size; | ||
| 104 | { | ||
| 105 | int ret=0; | ||
| 106 | int i,j,k,m,n,again,bufsize; | ||
| 107 | unsigned char *s=NULL,*sp; | ||
| 108 | unsigned char *bufp; | ||
| 109 | int num=0,slen=0,first=1; | ||
| 110 | |||
| 111 | bs->type=V_ASN1_INTEGER; | ||
| 112 | |||
| 113 | bufsize=BIO_gets(bp,buf,size); | ||
| 114 | for (;;) | ||
| 115 | { | ||
| 116 | if (bufsize < 1) goto err_sl; | ||
| 117 | i=bufsize; | ||
| 118 | if (buf[i-1] == '\n') buf[--i]='\0'; | ||
| 119 | if (i == 0) goto err_sl; | ||
| 120 | if (buf[i-1] == '\r') buf[--i]='\0'; | ||
| 121 | if (i == 0) goto err_sl; | ||
| 122 | again=(buf[i-1] == '\\'); | ||
| 123 | |||
| 124 | for (j=0; j<i; j++) | ||
| 125 | { | ||
| 126 | if (!( ((buf[j] >= '0') && (buf[j] <= '9')) || | ||
| 127 | ((buf[j] >= 'a') && (buf[j] <= 'f')) || | ||
| 128 | ((buf[j] >= 'A') && (buf[j] <= 'F')))) | ||
| 129 | { | ||
| 130 | i=j; | ||
| 131 | break; | ||
| 132 | } | ||
| 133 | } | ||
| 134 | buf[i]='\0'; | ||
| 135 | /* We have now cleared all the crap off the end of the | ||
| 136 | * line */ | ||
| 137 | if (i < 2) goto err_sl; | ||
| 138 | |||
| 139 | bufp=(unsigned char *)buf; | ||
| 140 | if (first) | ||
| 141 | { | ||
| 142 | first=0; | ||
| 143 | if ((bufp[0] == '0') && (buf[1] == '0')) | ||
| 144 | { | ||
| 145 | bufp+=2; | ||
| 146 | i-=2; | ||
| 147 | } | ||
| 148 | } | ||
| 149 | k=0; | ||
| 150 | i-=again; | ||
| 151 | if (i%2 != 0) | ||
| 152 | { | ||
| 153 | ASN1err(ASN1_F_A2I_ASN1_INTEGER,ASN1_R_ODD_NUMBER_OF_CHARS); | ||
| 154 | goto err; | ||
| 155 | } | ||
| 156 | i/=2; | ||
| 157 | if (num+i > slen) | ||
| 158 | { | ||
| 159 | if (s == NULL) | ||
| 160 | sp=(unsigned char *)Malloc( | ||
| 161 | (unsigned int)num+i*2); | ||
| 162 | else | ||
| 163 | sp=(unsigned char *)Realloc(s, | ||
| 164 | (unsigned int)num+i*2); | ||
| 165 | if (sp == NULL) | ||
| 166 | { | ||
| 167 | ASN1err(ASN1_F_A2I_ASN1_INTEGER,ERR_R_MALLOC_FAILURE); | ||
| 168 | if (s != NULL) Free((char *)s); | ||
| 169 | goto err; | ||
| 170 | } | ||
| 171 | s=sp; | ||
| 172 | slen=num+i*2; | ||
| 173 | } | ||
| 174 | for (j=0; j<i; j++,k+=2) | ||
| 175 | { | ||
| 176 | for (n=0; n<2; n++) | ||
| 177 | { | ||
| 178 | m=bufp[k+n]; | ||
| 179 | if ((m >= '0') && (m <= '9')) | ||
| 180 | m-='0'; | ||
| 181 | else if ((m >= 'a') && (m <= 'f')) | ||
| 182 | m=m-'a'+10; | ||
| 183 | else if ((m >= 'A') && (m <= 'F')) | ||
| 184 | m=m-'A'+10; | ||
| 185 | else | ||
| 186 | { | ||
| 187 | ASN1err(ASN1_F_A2I_ASN1_INTEGER,ASN1_R_NON_HEX_CHARACTERS); | ||
| 188 | goto err; | ||
| 189 | } | ||
| 190 | s[num+j]<<=4; | ||
| 191 | s[num+j]|=m; | ||
| 192 | } | ||
| 193 | } | ||
| 194 | num+=i; | ||
| 195 | if (again) | ||
| 196 | bufsize=BIO_gets(bp,buf,size); | ||
| 197 | else | ||
| 198 | break; | ||
| 199 | } | ||
| 200 | bs->length=num; | ||
| 201 | bs->data=s; | ||
| 202 | ret=1; | ||
| 203 | err: | ||
| 204 | if (0) | ||
| 205 | { | ||
| 206 | err_sl: | ||
| 207 | ASN1err(ASN1_F_A2I_ASN1_INTEGER,ASN1_R_SHORT_LINE); | ||
| 208 | } | ||
| 209 | return(ret); | ||
| 210 | } | ||
| 211 | |||
