1 /* sexp-transport-format.c
3 * Writing s-expressions in transport format.
6 /* nettle, low-level cryptographics library
8 * Copyright (C) 2002 Niels Möller
10 * The nettle library is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation; either version 2.1 of the License, or (at your
13 * option) any later version.
15 * The nettle library is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
17 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
18 * License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with the nettle library; see the file COPYING.LIB. If not, write to
22 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
36 sexp_transport_vformat(struct nettle_buffer *buffer,
37 const char *format, va_list args)
41 unsigned base64_length;
45 if (!NETTLE_BUFFER_PUTC(buffer, '{'))
51 length = sexp_vformat(buffer, format, args);
56 base64_length = BASE64_ENCODE_RAW_LENGTH(length);
60 if (!nettle_buffer_space(buffer, base64_length - length))
63 base64_encode_raw(buffer->contents + start,
64 length, buffer->contents + start);
66 if (!NETTLE_BUFFER_PUTC(buffer, '}'))
70 return base64_length + 2;
74 sexp_transport_format(struct nettle_buffer *buffer,
75 const char *format, ...)
80 va_start(args, format);
81 done = sexp_transport_vformat(buffer, format, args);