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101 lines
3.3 KiB
C
101 lines
3.3 KiB
C
/**
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* Copyright (c) 2021, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __COSMOPOLITAN__
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#include <assert.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdint.h>
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#endif
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#include "sha-256.h"
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#include "tailer.h"
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ssize_t send_packet(int fd,
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tailer_packet_type_t tpt,
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tailer_packet_payload_type_t payload_type,
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...)
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{
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va_list args;
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int done = 0;
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va_start(args, payload_type);
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write(fd, &tpt, sizeof(tpt));
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do {
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write(fd, &payload_type, sizeof(payload_type));
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switch (payload_type) {
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case TPPT_STRING: {
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char *str = va_arg(args, char *);
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uint32_t length = strlen(str);
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write(fd, &length, sizeof(length));
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write(fd, str, length);
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break;
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}
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case TPPT_HASH: {
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const char *hash = va_arg(args, const char *);
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write(fd, hash, SHA256_BLOCK_SIZE);
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break;
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}
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case TPPT_INT64: {
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int64_t i = va_arg(args, int64_t);
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write(fd, &i, sizeof(i));
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break;
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}
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case TPPT_BITS: {
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int32_t length = va_arg(args, int32_t);
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const char *bits = va_arg(args, const char *);
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write(fd, &length, sizeof(length));
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write(fd, bits, length);
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break;
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}
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case TPPT_DONE: {
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done = 1;
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break;
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}
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default: {
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assert(0);
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break;
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}
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}
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if (!done) {
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payload_type = va_arg(args, tailer_packet_payload_type_t);
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}
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} while (!done);
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va_end(args);
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return 0;
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}
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