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/* ISC license. */
#include <unistd.h>
#include <stdlib.h>
#include <tls.h>
#include <skalibs/buffer.h>
#include <s6-networking/stls.h>
static int add (buffer *b, int h, char const *key, char const *value)
{
if (buffer_puts(b, key) < 0) return 0 ;
if (h && value && value[0])
{
if (buffer_put(b, "=", 1) < 0
|| buffer_puts(b, value) < 0)
return 0 ;
}
if (buffer_put(b, "", 1) < 0) return 0 ;
return 1 ;
}
int stls_send_environment (struct tls *ctx, int fd)
{
char buf[4096] ;
buffer b = BUFFER_INIT(&buffer_write, fd, buf, 4096) ;
if (buffer_puts(&b, "SSL_PROTOCOL=") < 0
|| buffer_puts(&b, tls_conn_version(ctx)) < 0
|| buffer_put(&b, "", 1) < 0
|| buffer_puts(&b, "SSL_CIPHER=") < 0
|| buffer_puts(&b, tls_conn_cipher(ctx)) < 0
|| buffer_put(&b, "", 1) < 0)
return 0 ;
if (!add(&b, 1, "SSL_TLS_SNI_SERVERNAME", tls_conn_servername(ctx))) return 0 ;
if (!add(&b, tls_peer_cert_provided(ctx), "SSL_PEER_CERT_HASH", tls_peer_cert_hash(ctx))) return 0 ;
if (!add(&b, tls_peer_cert_provided(ctx), "SSL_PEER_CERT_SUBJECT", tls_peer_cert_subject(ctx))) return 0 ;
if (buffer_putflush(&b, "", 1) < 0) return 0 ;
return 1 ;
}
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