diff options
Diffstat (limited to 'openssl/crypto/asn1/evp_asn1.c')
-rw-r--r-- | openssl/crypto/asn1/evp_asn1.c | 262 |
1 files changed, 132 insertions, 130 deletions
diff --git a/openssl/crypto/asn1/evp_asn1.c b/openssl/crypto/asn1/evp_asn1.c index 1b9445973..5876afa5e 100644 --- a/openssl/crypto/asn1/evp_asn1.c +++ b/openssl/crypto/asn1/evp_asn1.c @@ -5,21 +5,21 @@ * 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: @@ -34,10 +34,10 @@ * 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 + * 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 @@ -49,7 +49,7 @@ * 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 @@ -62,132 +62,134 @@ #include <openssl/asn1_mac.h> int ASN1_TYPE_set_octetstring(ASN1_TYPE *a, unsigned char *data, int len) - { - ASN1_STRING *os; - - if ((os=M_ASN1_OCTET_STRING_new()) == NULL) return(0); - if (!M_ASN1_OCTET_STRING_set(os,data,len)) - { - M_ASN1_OCTET_STRING_free(os); - return 0; - } - ASN1_TYPE_set(a,V_ASN1_OCTET_STRING,os); - return(1); - } +{ + ASN1_STRING *os; + + if ((os = M_ASN1_OCTET_STRING_new()) == NULL) + return (0); + if (!M_ASN1_OCTET_STRING_set(os, data, len)) { + M_ASN1_OCTET_STRING_free(os); + return 0; + } + ASN1_TYPE_set(a, V_ASN1_OCTET_STRING, os); + return (1); +} /* int max_len: for returned value */ -int ASN1_TYPE_get_octetstring(ASN1_TYPE *a, unsigned char *data, - int max_len) - { - int ret,num; - unsigned char *p; - - if ((a->type != V_ASN1_OCTET_STRING) || (a->value.octet_string == NULL)) - { - ASN1err(ASN1_F_ASN1_TYPE_GET_OCTETSTRING,ASN1_R_DATA_IS_WRONG); - return(-1); - } - p=M_ASN1_STRING_data(a->value.octet_string); - ret=M_ASN1_STRING_length(a->value.octet_string); - if (ret < max_len) - num=ret; - else - num=max_len; - memcpy(data,p,num); - return(ret); - } +int ASN1_TYPE_get_octetstring(ASN1_TYPE *a, unsigned char *data, int max_len) +{ + int ret, num; + unsigned char *p; + + if ((a->type != V_ASN1_OCTET_STRING) || (a->value.octet_string == NULL)) { + ASN1err(ASN1_F_ASN1_TYPE_GET_OCTETSTRING, ASN1_R_DATA_IS_WRONG); + return (-1); + } + p = M_ASN1_STRING_data(a->value.octet_string); + ret = M_ASN1_STRING_length(a->value.octet_string); + if (ret < max_len) + num = ret; + else + num = max_len; + memcpy(data, p, num); + return (ret); +} int ASN1_TYPE_set_int_octetstring(ASN1_TYPE *a, long num, unsigned char *data, - int len) - { - int n,size; - ASN1_OCTET_STRING os,*osp; - ASN1_INTEGER in; - unsigned char *p; - unsigned char buf[32]; /* when they have 256bit longs, - * I'll be in trouble */ - in.data=buf; - in.length=32; - os.data=data; - os.type=V_ASN1_OCTET_STRING; - os.length=len; - ASN1_INTEGER_set(&in,num); - n = i2d_ASN1_INTEGER(&in,NULL); - n+=M_i2d_ASN1_OCTET_STRING(&os,NULL); - - size=ASN1_object_size(1,n,V_ASN1_SEQUENCE); - - if ((osp=ASN1_STRING_new()) == NULL) return(0); - /* Grow the 'string' */ - if (!ASN1_STRING_set(osp,NULL,size)) - { - ASN1_STRING_free(osp); - return(0); - } - - M_ASN1_STRING_length_set(osp, size); - p=M_ASN1_STRING_data(osp); - - ASN1_put_object(&p,1,n,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL); - i2d_ASN1_INTEGER(&in,&p); - M_i2d_ASN1_OCTET_STRING(&os,&p); - - ASN1_TYPE_set(a,V_ASN1_SEQUENCE,osp); - return(1); - } - -/* we return the actual length..., num may be missing, in which - * case, set it to zero */ + int len) +{ + int n, size; + ASN1_OCTET_STRING os, *osp; + ASN1_INTEGER in; + unsigned char *p; + unsigned char buf[32]; /* when they have 256bit longs, I'll be in + * trouble */ + in.data = buf; + in.length = 32; + os.data = data; + os.type = V_ASN1_OCTET_STRING; + os.length = len; + ASN1_INTEGER_set(&in, num); + n = i2d_ASN1_INTEGER(&in, NULL); + n += M_i2d_ASN1_OCTET_STRING(&os, NULL); + + size = ASN1_object_size(1, n, V_ASN1_SEQUENCE); + + if ((osp = ASN1_STRING_new()) == NULL) + return (0); + /* Grow the 'string' */ + if (!ASN1_STRING_set(osp, NULL, size)) { + ASN1_STRING_free(osp); + return (0); + } + + M_ASN1_STRING_length_set(osp, size); + p = M_ASN1_STRING_data(osp); + + ASN1_put_object(&p, 1, n, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL); + i2d_ASN1_INTEGER(&in, &p); + M_i2d_ASN1_OCTET_STRING(&os, &p); + + ASN1_TYPE_set(a, V_ASN1_SEQUENCE, osp); + return (1); +} + +/* + * we return the actual length..., num may be missing, in which case, set it + * to zero + */ /* int max_len: for returned value */ -int ASN1_TYPE_get_int_octetstring(ASN1_TYPE *a, long *num, unsigned char *data, - int max_len) - { - int ret= -1,n; - ASN1_INTEGER *ai=NULL; - ASN1_OCTET_STRING *os=NULL; - const unsigned char *p; - long length; - ASN1_const_CTX c; - - if ((a->type != V_ASN1_SEQUENCE) || (a->value.sequence == NULL)) - { - goto err; - } - p=M_ASN1_STRING_data(a->value.sequence); - length=M_ASN1_STRING_length(a->value.sequence); - - c.pp= &p; - c.p=p; - c.max=p+length; - c.error=ASN1_R_DATA_IS_WRONG; - - M_ASN1_D2I_start_sequence(); - c.q=c.p; - if ((ai=d2i_ASN1_INTEGER(NULL,&c.p,c.slen)) == NULL) goto err; - c.slen-=(c.p-c.q); - c.q=c.p; - if ((os=d2i_ASN1_OCTET_STRING(NULL,&c.p,c.slen)) == NULL) goto err; - c.slen-=(c.p-c.q); - if (!M_ASN1_D2I_end_sequence()) goto err; - - if (num != NULL) - *num=ASN1_INTEGER_get(ai); - - ret=M_ASN1_STRING_length(os); - if (max_len > ret) - n=ret; - else - n=max_len; - - if (data != NULL) - memcpy(data,M_ASN1_STRING_data(os),n); - if (0) - { -err: - ASN1err(ASN1_F_ASN1_TYPE_GET_INT_OCTETSTRING,ASN1_R_DATA_IS_WRONG); - } - if (os != NULL) M_ASN1_OCTET_STRING_free(os); - if (ai != NULL) M_ASN1_INTEGER_free(ai); - return(ret); - } - +int ASN1_TYPE_get_int_octetstring(ASN1_TYPE *a, long *num, + unsigned char *data, int max_len) +{ + int ret = -1, n; + ASN1_INTEGER *ai = NULL; + ASN1_OCTET_STRING *os = NULL; + const unsigned char *p; + long length; + ASN1_const_CTX c; + + if ((a->type != V_ASN1_SEQUENCE) || (a->value.sequence == NULL)) { + goto err; + } + p = M_ASN1_STRING_data(a->value.sequence); + length = M_ASN1_STRING_length(a->value.sequence); + + c.pp = &p; + c.p = p; + c.max = p + length; + c.error = ASN1_R_DATA_IS_WRONG; + + M_ASN1_D2I_start_sequence(); + c.q = c.p; + if ((ai = d2i_ASN1_INTEGER(NULL, &c.p, c.slen)) == NULL) + goto err; + c.slen -= (c.p - c.q); + c.q = c.p; + if ((os = d2i_ASN1_OCTET_STRING(NULL, &c.p, c.slen)) == NULL) + goto err; + c.slen -= (c.p - c.q); + if (!M_ASN1_D2I_end_sequence()) + goto err; + + if (num != NULL) + *num = ASN1_INTEGER_get(ai); + + ret = M_ASN1_STRING_length(os); + if (max_len > ret) + n = ret; + else + n = max_len; + + if (data != NULL) + memcpy(data, M_ASN1_STRING_data(os), n); + if (0) { + err: + ASN1err(ASN1_F_ASN1_TYPE_GET_INT_OCTETSTRING, ASN1_R_DATA_IS_WRONG); + } + if (os != NULL) + M_ASN1_OCTET_STRING_free(os); + if (ai != NULL) + M_ASN1_INTEGER_free(ai); + return (ret); +} |