+static STACK_OF(GENERAL_NAME) *v2i_issuer_alt(X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK *nval)
+{
+ STACK_OF(GENERAL_NAME) *gens = NULL;
+ CONF_VALUE *cnf;
+ int i;
+ if(!(gens = sk_GENERAL_NAME_new(NULL))) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ for(i = 0; i < sk_num(nval); i++) {
+ cnf = (CONF_VALUE *)sk_value(nval, i);
+ if(!name_cmp(cnf->name, "issuer") && cnf->value &&
+ !strcmp(cnf->value, "copy")) {
+ if(!copy_issuer(ctx, gens)) goto err;
+ } else {
+ GENERAL_NAME *gen;
+ if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
+ goto err;
+ sk_GENERAL_NAME_push(gens, gen);
+ }
+ }
+ return gens;
+ err:
+ sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
+ return NULL;
+}
+
+/* Append subject altname of issuer to issuer alt name of subject */
+
+static int copy_issuer(X509V3_CTX *ctx, STACK_OF(GENERAL_NAME) *gens)
+{
+ STACK_OF(GENERAL_NAME) *ialt;
+ GENERAL_NAME *gen;
+ X509_EXTENSION *ext;
+ int i;
+ if(ctx && (ctx->flags == CTX_TEST)) return 1;
+ if(!ctx || !ctx->issuer_cert) {
+ X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_NO_ISSUER_DETAILS);
+ goto err;
+ }
+ i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
+ if(i < 0) return 1;
+ if(!(ext = X509_get_ext(ctx->issuer_cert, i)) ||
+ !(ialt = X509V3_EXT_d2i(ext)) ) {
+ X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_ISSUER_DECODE_ERROR);
+ goto err;
+ }
+
+ for(i = 0; i < sk_GENERAL_NAME_num(ialt); i++) {
+ gen = sk_GENERAL_NAME_value(ialt, i);
+ if(!sk_GENERAL_NAME_push(gens, gen)) {
+ X509V3err(X509V3_F_COPY_ISSUER,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ }
+ sk_GENERAL_NAME_free(ialt);
+
+ return 1;
+
+ err:
+ return 0;
+
+}
+
+static STACK_OF(GENERAL_NAME) *v2i_subject_alt(X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK *nval)
+{
+ STACK_OF(GENERAL_NAME) *gens = NULL;
+ CONF_VALUE *cnf;
+ int i;
+ if(!(gens = sk_GENERAL_NAME_new(NULL))) {
+ X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ for(i = 0; i < sk_num(nval); i++) {
+ cnf = (CONF_VALUE *)sk_value(nval, i);
+ if(!name_cmp(cnf->name, "email") && cnf->value &&
+ !strcmp(cnf->value, "copy")) {
+ if(!copy_email(ctx, gens)) goto err;
+ } else {
+ GENERAL_NAME *gen;
+ if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
+ goto err;
+ sk_GENERAL_NAME_push(gens, gen);
+ }
+ }
+ return gens;
+ err:
+ sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
+ return NULL;
+}
+
+/* Copy any email addresses in a certificate or request to
+ * GENERAL_NAMES
+ */
+
+static int copy_email(X509V3_CTX *ctx, STACK_OF(GENERAL_NAME) *gens)
+{
+ X509_NAME *nm;
+ ASN1_IA5STRING *email = NULL;
+ X509_NAME_ENTRY *ne;
+ GENERAL_NAME *gen = NULL;
+ int i;
+ if(ctx->flags == CTX_TEST) return 1;
+ if(!ctx || (!ctx->subject_cert && !ctx->subject_req)) {
+ X509V3err(X509V3_F_COPY_EMAIL,X509V3_R_NO_SUBJECT_DETAILS);
+ goto err;
+ }
+ /* Find the subject name */
+ if(ctx->subject_cert) nm = X509_get_subject_name(ctx->subject_cert);
+ else nm = X509_REQ_get_subject_name(ctx->subject_req);
+
+ /* Now add any email address(es) to STACK */
+ i = -1;
+ while((i = X509_NAME_get_index_by_NID(nm,
+ NID_pkcs9_emailAddress, i)) > 0) {
+ ne = X509_NAME_get_entry(nm, i);
+ email = ASN1_IA5STRING_dup(X509_NAME_ENTRY_get_data(ne));
+ if(!email || !(gen = GENERAL_NAME_new())) {
+ X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ gen->d.ia5 = email;
+ email = NULL;
+ gen->type = GEN_EMAIL;
+ if(!sk_GENERAL_NAME_push(gens, gen)) {
+ X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ gen = NULL;
+ }
+
+
+ return 1;
+
+ err:
+ GENERAL_NAME_free(gen);
+ ASN1_IA5STRING_free(email);
+ return 0;
+
+}
+
+STACK_OF(GENERAL_NAME) *v2i_GENERAL_NAMES(X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK *nval)