Move *_pemify() function to PEM module
diff --git a/include/polarssl/pem.h b/include/polarssl/pem.h
index cc6cba1..46d89b0 100644
--- a/include/polarssl/pem.h
+++ b/include/polarssl/pem.h
@@ -88,7 +88,7 @@
* the decrypted text starts with an ASN.1 sequence of
* appropriate length
*
- * \return 0 on success, ior a specific PEM error code
+ * \return 0 on success, or a specific PEM error code
*/
int pem_read_buffer( pem_context *ctx, const char *header, const char *footer,
const unsigned char *data,
@@ -96,6 +96,26 @@
size_t pwdlen, size_t *use_len );
/**
+ * \brief Write a buffer of PEM information from a DER encoded
+ * buffer.
+ *
+ * \param header header string to write
+ * \param footer footer string to write
+ * \param der_data DER data to write
+ * \param der_len length of the DER data
+ * \param buf buffer to write to
+ * \param buf_len length of output buffer
+ * \param olen total length written / required (if buf_len is not enough)
+ *
+ * \return 0 on success, or a specific PEM or BASE64 error code. On
+ * POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL olen is the required
+ * size.
+ */
+int pem_write_buffer( const char *header, const char *footer,
+ const unsigned char *der_data, size_t der_len,
+ unsigned char *buf, size_t buf_len, size_t *olen );
+
+/**
* \brief PEM context memory freeing
*
* \param ctx context to be freed