X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fasn1%2Fa_enum.c;h=fe9aa13b9cd5b71b0393ac68fe75b252a7fd6016;hb=ae8b47f07f70c9a7debf43d2cd8d7fd2c05aee51;hp=32cfe5b599e75aa51960acd16782285d490ba3a8;hpb=08e9c1af6c26f74ef7f7524be4b89241ff232a8c;p=oweals%2Fopenssl.git diff --git a/crypto/asn1/a_enum.c b/crypto/asn1/a_enum.c index 32cfe5b599..fe9aa13b9c 100644 --- a/crypto/asn1/a_enum.c +++ b/crypto/asn1/a_enum.c @@ -59,186 +59,26 @@ #include #include "cryptlib.h" #include +#include /* * Code for ENUMERATED type: identical to INTEGER apart from a different tag. * for comments on encoding see a_int.c */ -ASN1_ENUMERATED *ASN1_ENUMERATED_new(void) -{ return M_ASN1_ENUMERATED_new(); } - -void ASN1_ENUMERATED_free(ASN1_ENUMERATED *x) -{ return M_ASN1_ENUMERATED_free(x); } - -int i2d_ASN1_ENUMERATED(ASN1_ENUMERATED *a, unsigned char **pp) - { - int pad=0,ret,r,i,t; - unsigned char *p,*n,pb=0; - - if ((a == NULL) || (a->data == NULL)) return(0); - t=a->type; - if (a->length == 0) - ret=1; - else - { - ret=a->length; - i=a->data[0]; - if ((t == V_ASN1_ENUMERATED) && (i > 127)) { - pad=1; - pb=0; - } else if(t == V_ASN1_NEG_ENUMERATED) { - if(i>128) { - pad=1; - pb=0xFF; - } else if(i == 128) { - for(i = 1; i < a->length; i++) if(a->data[i]) { - pad=1; - pb=0xFF; - break; - } - } - } - ret+=pad; - } - r=ASN1_object_size(0,ret,V_ASN1_ENUMERATED); - if (pp == NULL) return(r); - p= *pp; - - ASN1_put_object(&p,0,ret,V_ASN1_ENUMERATED,V_ASN1_UNIVERSAL); - if (pad) *(p++)=pb; - if (a->length == 0) - *(p++)=0; - else if (t == V_ASN1_ENUMERATED) - { - memcpy(p,a->data,(unsigned int)a->length); - p+=a->length; - } - else { - /* Begin at the end of the encoding */ - n=a->data + a->length - 1; - p += a->length - 1; - i = a->length; - /* Copy zeros to destination as long as source is zero */ - while(!*n) { - *(p--) = 0; - n--; - i--; - } - /* Complement and increment next octet */ - *(p--) = ((*(n--)) ^ 0xff) + 1; - i--; - /* Complement any octets left */ - for(;i > 0; i--) *(p--) = *(n--) ^ 0xff; - p += a->length; - } - - *pp=p; - return(r); - } - -ASN1_ENUMERATED *d2i_ASN1_ENUMERATED(ASN1_ENUMERATED **a, unsigned char **pp, - long length) - { - ASN1_ENUMERATED *ret=NULL; - unsigned char *p,*to,*s; - long len; - int inf,tag,xclass; - int i; - - if ((a == NULL) || ((*a) == NULL)) - { - if ((ret=M_ASN1_ENUMERATED_new()) == NULL) return(NULL); - ret->type=V_ASN1_ENUMERATED; - } - else - ret=(*a); - - p= *pp; - inf=ASN1_get_object(&p,&len,&tag,&xclass,length); - if (inf & 0x80) - { - i=ASN1_R_BAD_OBJECT_HEADER; - goto err; - } - - if (tag != V_ASN1_ENUMERATED) - { - i=ASN1_R_EXPECTING_AN_ENUMERATED; - goto err; - } - - /* We must Malloc stuff, even for 0 bytes otherwise it - * signifies a missing NULL parameter. */ - s=(unsigned char *)Malloc((int)len+1); - if (s == NULL) - { - i=ERR_R_MALLOC_FAILURE; - goto err; - } - to=s; - if (*p & 0x80) /* a negative number */ - { - ret->type=V_ASN1_NEG_ENUMERATED; - if ((*p == 0xff) && (len != 1)) { - p++; - len--; - } - i = len; - p += i - 1; - to += i - 1; - while((!*p) && i) { - *(to--) = 0; - i--; - p--; - } - if(!i) { - *s = 1; - s[len] = 0; - p += len; - len++; - } else { - *(to--) = (*(p--) ^ 0xff) + 1; - i--; - for(;i > 0; i--) *(to--) = *(p--) ^ 0xff; - p += len; - } - } else { - ret->type=V_ASN1_ENUMERATED; - if ((*p == 0) && (len != 1)) - { - p++; - len--; - } - memcpy(s,p,(int)len); - p+=len; - } - - if (ret->data != NULL) Free((char *)ret->data); - ret->data=s; - ret->length=(int)len; - if (a != NULL) (*a)=ret; - *pp=p; - return(ret); -err: - ASN1err(ASN1_F_D2I_ASN1_ENUMERATED,i); - if ((ret != NULL) && ((a == NULL) || (*a != ret))) - M_ASN1_ENUMERATED_free(ret); - return(NULL); - } - int ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v) { - int i,j,k; + int j,k; + unsigned int i; unsigned char buf[sizeof(long)+1]; long d; a->type=V_ASN1_ENUMERATED; - if (a->length < (sizeof(long)+1)) + if (a->length < (int)(sizeof(long)+1)) { if (a->data != NULL) - Free((char *)a->data); - if ((a->data=(unsigned char *)Malloc(sizeof(long)+1)) != NULL) + OPENSSL_free(a->data); + if ((a->data=(unsigned char *)OPENSSL_malloc(sizeof(long)+1)) != NULL) memset((char *)a->data,0,sizeof(long)+1); } if (a->data == NULL) @@ -276,15 +116,15 @@ long ASN1_ENUMERATED_get(ASN1_ENUMERATED *a) if (i == V_ASN1_NEG_ENUMERATED) neg=1; else if (i != V_ASN1_ENUMERATED) - return(0); + return -1; - if (a->length > sizeof(long)) + if (a->length > (int)sizeof(long)) { /* hmm... a bit ugly */ return(0xffffffffL); } if (a->data == NULL) - return(0); + return 0; for (i=0; ilength; i++) { @@ -309,11 +149,21 @@ ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(BIGNUM *bn, ASN1_ENUMERATED *ai) ASN1err(ASN1_F_BN_TO_ASN1_ENUMERATED,ERR_R_NESTED_ASN1_ERROR); goto err; } - if(bn->neg) ret->type = V_ASN1_NEG_ENUMERATED; + if(BN_is_negative(bn)) ret->type = V_ASN1_NEG_ENUMERATED; else ret->type=V_ASN1_ENUMERATED; j=BN_num_bits(bn); len=((j == 0)?0:((j/8)+1)); - ret->data=(unsigned char *)Malloc(len+4); + if (ret->length < len+4) + { + unsigned char *new_data=OPENSSL_realloc(ret->data, len+4); + if (!new_data) + { + ASN1err(ASN1_F_BN_TO_ASN1_ENUMERATED,ERR_R_MALLOC_FAILURE); + goto err; + } + ret->data=new_data; + } + ret->length=BN_bn2bin(bn,ret->data); return(ret); err: @@ -327,6 +177,6 @@ BIGNUM *ASN1_ENUMERATED_to_BN(ASN1_ENUMERATED *ai, BIGNUM *bn) if ((ret=BN_bin2bn(ai->data,ai->length,bn)) == NULL) ASN1err(ASN1_F_ASN1_ENUMERATED_TO_BN,ASN1_R_BN_LIB); - if(ai->type == V_ASN1_NEG_ENUMERATED) bn->neg = 1; + else if(ai->type == V_ASN1_NEG_ENUMERATED) BN_set_negative(ret,1); return(ret); }