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/*
* Author Jerry Lundström <jerry@dns-oarc.net>
* Copyright (c) 2020, OARC, Inc.
* All rights reserved.
*
* This file is part of the tinyframe library.
*
* tinyframe library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* tinyframe library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with tinyframe library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <tinyframe/tinyframe.h>
#include <stdio.h>
#include <inttypes.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
static void
print_string(const void* data, size_t len)
{
uint8_t* str = (uint8_t*)data;
putc('"', stdout);
while (len-- != 0) {
unsigned c = *(str++);
if (isprint(c)) {
if (c == '"')
puts("\\\"");
else
putc(c, stdout);
} else {
printf("\\x%02x", c);
}
}
putc('"', stdout);
}
int main(int argc, const char* argv[])
{
if (argc < 3) {
return 1;
}
FILE* fp = fopen(argv[1], "r");
if (!fp) {
return 2;
}
int rbuf_len = atoi(argv[2]);
struct tinyframe_reader h = TINYFRAME_READER_INITIALIZER;
size_t s = 0, r;
uint8_t buf[4096], rbuf[rbuf_len];
while ((r = fread(rbuf, 1, sizeof(rbuf), fp)) > 0) {
printf("read %zu\n", r);
if (s + r > sizeof(buf)) {
printf("overflow\n");
break;
}
memcpy(&buf[s], rbuf, r);
s += r;
int r = 1;
while (r) {
switch (tinyframe_read(&h, buf, s)) {
case tinyframe_have_control:
printf("control type %" PRIu32 " len %" PRIu32 "\n", h.control.type, h.control.length);
break;
case tinyframe_have_control_field:
printf("control_field type %" PRIu32 " len %" PRIu32 " data: ", h.control_field.type, h.control_field.length);
print_string(h.control_field.data, h.control_field.length);
printf("\n");
break;
case tinyframe_have_frame:
printf("frame len %" PRIu32 " data: ", h.frame.length);
print_string(h.frame.data, h.frame.length);
printf("\n");
break;
case tinyframe_need_more:
printf("need more\n");
r = 0;
break;
case tinyframe_error:
printf("error\n");
fclose(fp);
return 2;
case tinyframe_stopped:
printf("stopped\n");
fclose(fp);
return 0;
case tinyframe_finished:
printf("finished\n");
fclose(fp);
return 0;
default:
printf("unexpected return code\n");
fclose(fp);
return 3;
}
if (r && h.bytes_read && h.bytes_read <= s) {
s -= h.bytes_read;
if (s) {
memmove(buf, &buf[h.bytes_read], s);
}
}
}
}
fclose(fp);
return 0;
}
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