7. SSL
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## 7. SSL

         void *cs_get_ssl(COMSTACK cs);

Returns the SSL handle, `SSL *` for comstack. If comstack is not of type SSL, NULL is returned.

         int cs_set_ssl_ctx(COMSTACK cs, void *ctx);

Sets SSL context for comstack. The parameter is expected to be of type `SSL_CTX *`. This function should be called just after comstack has been created (before connect, bind, etc). This function returns 1 for success; 0 for failure.

         int cs_set_ssl_certificate_file(COMSTACK cs, const char *fname);

Sets SSL certificate for comstack as a PEM file. This function returns 1 for success; 0 for failure.

         int cs_get_ssl_peer_certificate_x509(COMSTACK cs, char **buf, int *len);

This function returns the peer certificate. If successful, `*buf` and `*len` holds X509 buffer and length respectively. Buffer should be freed with `xfree`. This function returns 1 for success; 0 for failure.

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