diff options
Diffstat (limited to 'crypto/openssl/crypto/asn1/tasn_dec.c')
| -rw-r--r-- | crypto/openssl/crypto/asn1/tasn_dec.c | 44 |
1 files changed, 34 insertions, 10 deletions
diff --git a/crypto/openssl/crypto/asn1/tasn_dec.c b/crypto/openssl/crypto/asn1/tasn_dec.c index 2cbfa81..33249ab 100644 --- a/crypto/openssl/crypto/asn1/tasn_dec.c +++ b/crypto/openssl/crypto/asn1/tasn_dec.c @@ -127,16 +127,22 @@ unsigned long ASN1_tag2bit(int tag) ASN1_VALUE *ASN1_item_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, const ASN1_ITEM *it) - { +{ ASN1_TLC c; ASN1_VALUE *ptmpval = NULL; - if (!pval) - pval = &ptmpval; asn1_tlc_clear_nc(&c); - if (ASN1_item_ex_d2i(pval, in, len, it, -1, 0, 0, &c) > 0) - return *pval; - return NULL; + if (pval && *pval && it->itype == ASN1_ITYPE_PRIMITIVE) + ptmpval = *pval; + if (ASN1_item_ex_d2i(&ptmpval, in, len, it, -1, 0, 0, &c) > 0) { + if (pval && it->itype != ASN1_ITYPE_PRIMITIVE) { + if (*pval) + ASN1_item_free(*pval, it); + *pval = ptmpval; + } + return ptmpval; } + return NULL; +} int ASN1_template_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, const ASN1_TEMPLATE *tt) @@ -311,13 +317,20 @@ int ASN1_item_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, if (asn1_cb && !asn1_cb(ASN1_OP_D2I_PRE, pval, it, NULL)) goto auxerr; - /* Allocate structure */ - if (!*pval && !ASN1_item_ex_new(pval, it)) - { + if (*pval) { + /* Free up and zero CHOICE value if initialised */ + i = asn1_get_choice_selector(pval, it); + if ((i >= 0) && (i < it->tcount)) { + tt = it->templates + i; + pchptr = asn1_get_field_ptr(pval, tt); + ASN1_template_free(pchptr, tt); + asn1_set_choice_selector(pval, -1, it); + } + } else if (!ASN1_item_ex_new(pval, it)) { ASN1err(ASN1_F_ASN1_ITEM_EX_D2I, ERR_R_NESTED_ASN1_ERROR); goto err; - } + } /* CHOICE type, try each possibility in turn */ p = *in; for (i = 0, tt=it->templates; i < it->tcount; i++, tt++) @@ -407,6 +420,17 @@ int ASN1_item_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, if (asn1_cb && !asn1_cb(ASN1_OP_D2I_PRE, pval, it, NULL)) goto auxerr; + /* Free up and zero any ADB found */ + for (i = 0, tt = it->templates; i < it->tcount; i++, tt++) { + if (tt->flags & ASN1_TFLG_ADB_MASK) { + const ASN1_TEMPLATE *seqtt; + ASN1_VALUE **pseqval; + seqtt = asn1_do_adb(pval, tt, 1); + pseqval = asn1_get_field_ptr(pval, seqtt); + ASN1_template_free(pseqval, seqtt); + } + } + /* Get each field entry */ for (i = 0, tt = it->templates; i < it->tcount; i++, tt++) { |
