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/* This file is part of GNU Pies testsuite.
Copyright (C) 2019-2023 Sergey Poznyakoff
GNU Pies is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Pies 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Pies. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <c-ctype.h>
#include <libpies.h>
enum { LINESIZ = 72 };
static int
next_char (int stop)
{
static int ch = 0;
static int i = 0;
static int c;
int ret;
switch (i++)
{
case 0:
do
ch = (ch + 1) % 128;
while (!c_isprint (ch));
if (ch == stop)
return 0;
c = ch;
break;
case LINESIZ:
return '\r';
case LINESIZ+1:
i = 0;
return '\n';
}
ret = c;
do
c = (c + 1) % 128;
while (!c_isprint (c));
return ret;
}
int
main (int argc, char **argv)
{
struct pies_url *url;
int fd;
FILE *fp;
unsigned n;
int c, first;
char *progname = argv[0];
if (argc != 2)
{
fprintf (stderr, "usage: %s URL\n", progname);
fprintf (stderr, "Tests the character generator protocol\n");
return 64;
}
if (pies_url_create (&url, argv[1]))
{
perror (argv[1]);
return 64;
}
fd = url_connect (url, NULL);
if (fd == -1)
return 1;
fp = fdopen (fd, "r");
if (!fp)
{
perror ("fdopen");
return 1;
}
first = next_char (0);
c = first;
do
{
int in = fgetc (fp);
if (in == EOF)
{
fprintf (stderr, "%s: unexpected EOF in %u\n", progname, n);
return 1;
}
if (in != c)
{
fprintf (stderr, "%s: got %d instead of %d in %u\n",
progname, in, c, n);
return 1;
}
n++;
}
while ((c = next_char (first)) != 0);
return 0;
}
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