/* bio_ndef.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project.
*/
/* ====================================================================
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
#include <openssl/bio.h>
#include <openssl/err.h>
-#ifndef OPENSSL_SYSNAME_NETWARE
-#include <memory.h>
-#endif
#include <stdio.h>
/* Experimental NDEF ASN1 BIO support routines */
-/* The usage is quite simple, initialize an ASN1 structure,
- * get a BIO from it then any data written through the BIO
- * will end up translated to approptiate format on the fly.
- * The data is streamed out and does *not* need to be
- * all held in memory at once.
- *
- * When the BIO is flushed the output is finalized and any
- * signatures etc written out.
- *
- * The BIO is a 'proper' BIO and can handle non blocking I/O
- * correctly.
- *
- * The usage is simple. The implementation is *not*...
+/*
+ * The usage is quite simple, initialize an ASN1 structure, get a BIO from it
+ * then any data written through the BIO will end up translated to
+ * approptiate format on the fly. The data is streamed out and does *not*
+ * need to be all held in memory at once. When the BIO is flushed the output
+ * is finalized and any signatures etc written out. The BIO is a 'proper'
+ * BIO and can handle non blocking I/O correctly. The usage is simple. The
+ * implementation is *not*...
*/
/* BIO support data stored in the ASN1 BIO ex_arg */
-typedef struct ndef_aux_st
- {
- /* ASN1 structure this BIO refers to */
- ASN1_VALUE *val;
- const ASN1_ITEM *it;
- /* Top of the BIO chain */
- BIO *ndef_bio;
- /* Output BIO */
- BIO *out;
- /* Boundary where content is inserted */
- unsigned char **boundary;
- /* DER buffer start */
- unsigned char *derbuf;
- } NDEF_SUPPORT;
+typedef struct ndef_aux_st {
+ /* ASN1 structure this BIO refers to */
+ ASN1_VALUE *val;
+ const ASN1_ITEM *it;
+ /* Top of the BIO chain */
+ BIO *ndef_bio;
+ /* Output BIO */
+ BIO *out;
+ /* Boundary where content is inserted */
+ unsigned char **boundary;
+ /* DER buffer start */
+ unsigned char *derbuf;
+} NDEF_SUPPORT;
static int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg);
-static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg);
+static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen,
+ void *parg);
static int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg);
-static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg);
+static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen,
+ void *parg);
BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it)
- {
- NDEF_SUPPORT *ndef_aux = NULL;
- BIO *asn_bio = NULL;
- const ASN1_AUX *aux = it->funcs;
- ASN1_STREAM_ARG sarg;
+{
+ NDEF_SUPPORT *ndef_aux = NULL;
+ BIO *asn_bio = NULL;
+ const ASN1_AUX *aux = it->funcs;
+ ASN1_STREAM_ARG sarg;
- if (!aux && !aux->asn1_cb)
- {
- ASN1err(ASN1_F_BIO_NEW_NDEF, ASN1_R_STREAMING_NOT_SUPPORTED);
- return NULL;
- }
- ndef_aux = OPENSSL_malloc(sizeof(NDEF_SUPPORT));
- asn_bio = BIO_new(BIO_f_asn1());
+ if (!aux || !aux->asn1_cb) {
+ ASN1err(ASN1_F_BIO_NEW_NDEF, ASN1_R_STREAMING_NOT_SUPPORTED);
+ return NULL;
+ }
+ ndef_aux = OPENSSL_malloc(sizeof(NDEF_SUPPORT));
+ asn_bio = BIO_new(BIO_f_asn1());
- /* ASN1 bio needs to be next to output BIO */
+ /* ASN1 bio needs to be next to output BIO */
- out = BIO_push(asn_bio, out);
+ out = BIO_push(asn_bio, out);
- if (!ndef_aux || !asn_bio || !out)
- goto err;
+ if (!ndef_aux || !asn_bio || !out)
+ goto err;
- BIO_asn1_set_prefix(asn_bio, ndef_prefix, ndef_prefix_free);
- BIO_asn1_set_suffix(asn_bio, ndef_suffix, ndef_suffix_free);
+ BIO_asn1_set_prefix(asn_bio, ndef_prefix, ndef_prefix_free);
+ BIO_asn1_set_suffix(asn_bio, ndef_suffix, ndef_suffix_free);
- /* Now let callback prepend any digest, cipher etc BIOs
- * ASN1 structure needs.
- */
+ /*
+ * Now let callback prepend any digest, cipher etc BIOs ASN1 structure
+ * needs.
+ */
- sarg.out = out;
- sarg.ndef_bio = NULL;
- sarg.boundary = NULL;
+ sarg.out = out;
+ sarg.ndef_bio = NULL;
+ sarg.boundary = NULL;
- if (aux->asn1_cb(ASN1_OP_STREAM_PRE, &val, it, &sarg) <= 0)
- goto err;
+ if (aux->asn1_cb(ASN1_OP_STREAM_PRE, &val, it, &sarg) <= 0)
+ goto err;
- ndef_aux->val = val;
- ndef_aux->it = it;
- ndef_aux->ndef_bio = sarg.ndef_bio;
- ndef_aux->boundary = sarg.boundary;
- ndef_aux->out = out;
+ ndef_aux->val = val;
+ ndef_aux->it = it;
+ ndef_aux->ndef_bio = sarg.ndef_bio;
+ ndef_aux->boundary = sarg.boundary;
+ ndef_aux->out = out;
- BIO_ctrl(asn_bio, BIO_C_SET_EX_ARG, 0, ndef_aux);
+ BIO_ctrl(asn_bio, BIO_C_SET_EX_ARG, 0, ndef_aux);
- return sarg.ndef_bio;
+ return sarg.ndef_bio;
- err:
- if (asn_bio)
- BIO_free(asn_bio);
- if (ndef_aux)
- OPENSSL_free(ndef_aux);
- return NULL;
- }
+ err:
+ if (asn_bio)
+ BIO_free(asn_bio);
+ if (ndef_aux)
+ OPENSSL_free(ndef_aux);
+ return NULL;
+}
static int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg)
- {
- NDEF_SUPPORT *ndef_aux;
- unsigned char *p;
- int derlen;
+{
+ NDEF_SUPPORT *ndef_aux;
+ unsigned char *p;
+ int derlen;
- if (!parg)
- return 0;
+ if (!parg)
+ return 0;
- ndef_aux = *(NDEF_SUPPORT **)parg;
+ ndef_aux = *(NDEF_SUPPORT **)parg;
- derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
- p = OPENSSL_malloc(derlen);
- ndef_aux->derbuf = p;
- *pbuf = p;
- derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
+ derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
+ p = OPENSSL_malloc(derlen);
+ ndef_aux->derbuf = p;
+ *pbuf = p;
+ derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
- if (!*ndef_aux->boundary)
- return 0;
+ if (!*ndef_aux->boundary)
+ return 0;
- *plen = *ndef_aux->boundary - *pbuf;
+ *plen = *ndef_aux->boundary - *pbuf;
- return 1;
- }
+ return 1;
+}
-static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg)
- {
- NDEF_SUPPORT *ndef_aux;
+static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen,
+ void *parg)
+{
+ NDEF_SUPPORT *ndef_aux;
- if (!parg)
- return 0;
+ if (!parg)
+ return 0;
- ndef_aux = *(NDEF_SUPPORT **)parg;
+ ndef_aux = *(NDEF_SUPPORT **)parg;
- if (ndef_aux->derbuf)
- OPENSSL_free(ndef_aux->derbuf);
+ if (ndef_aux->derbuf)
+ OPENSSL_free(ndef_aux->derbuf);
- ndef_aux->derbuf = NULL;
- *pbuf = NULL;
- *plen = 0;
- return 1;
- }
+ ndef_aux->derbuf = NULL;
+ *pbuf = NULL;
+ *plen = 0;
+ return 1;
+}
-static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg)
- {
- NDEF_SUPPORT **pndef_aux = (NDEF_SUPPORT **)parg;
- if (!ndef_prefix_free(b, pbuf, plen, parg))
- return 0;
- OPENSSL_free(*pndef_aux);
- *pndef_aux = NULL;
- return 1;
- }
+static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen,
+ void *parg)
+{
+ NDEF_SUPPORT **pndef_aux = (NDEF_SUPPORT **)parg;
+ if (!ndef_prefix_free(b, pbuf, plen, parg))
+ return 0;
+ OPENSSL_free(*pndef_aux);
+ *pndef_aux = NULL;
+ return 1;
+}
static int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg)
- {
- NDEF_SUPPORT *ndef_aux;
- unsigned char *p;
- int derlen;
- const ASN1_AUX *aux;
- ASN1_STREAM_ARG sarg;
-
- if (!parg)
- return 0;
-
- ndef_aux = *(NDEF_SUPPORT **)parg;
-
- aux = ndef_aux->it->funcs;
-
- /* Finalize structures */
- sarg.ndef_bio = ndef_aux->ndef_bio;
- sarg.out = ndef_aux->out;
- sarg.boundary = ndef_aux->boundary;
- if (aux->asn1_cb(ASN1_OP_STREAM_POST,
- &ndef_aux->val, ndef_aux->it, &sarg) <= 0)
- return 0;
-
- derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
- p = OPENSSL_malloc(derlen);
- ndef_aux->derbuf = p;
- *pbuf = p;
- derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
-
- if (!*ndef_aux->boundary)
- return 0;
- *pbuf = *ndef_aux->boundary;
- *plen = derlen - (*ndef_aux->boundary - ndef_aux->derbuf);
-
- return 1;
- }
+{
+ NDEF_SUPPORT *ndef_aux;
+ unsigned char *p;
+ int derlen;
+ const ASN1_AUX *aux;
+ ASN1_STREAM_ARG sarg;
+
+ if (!parg)
+ return 0;
+
+ ndef_aux = *(NDEF_SUPPORT **)parg;
+
+ aux = ndef_aux->it->funcs;
+
+ /* Finalize structures */
+ sarg.ndef_bio = ndef_aux->ndef_bio;
+ sarg.out = ndef_aux->out;
+ sarg.boundary = ndef_aux->boundary;
+ if (aux->asn1_cb(ASN1_OP_STREAM_POST,
+ &ndef_aux->val, ndef_aux->it, &sarg) <= 0)
+ return 0;
+
+ derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
+ p = OPENSSL_malloc(derlen);
+ ndef_aux->derbuf = p;
+ *pbuf = p;
+ derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
+
+ if (!*ndef_aux->boundary)
+ return 0;
+ *pbuf = *ndef_aux->boundary;
+ *plen = derlen - (*ndef_aux->boundary - ndef_aux->derbuf);
+
+ return 1;
+}
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