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/*
* chatter.c -- do some read/writes on a given device, for testing device r/w recording
*
* Copyright (C) 2013 Canonical Ltd.
* Author: Martin Pitt <martin.pitt@ubuntu.com>
*
* umockdev 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 2.1 of the License, or (at your option) any later version.
*
* umockdev 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 this program; If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <assert.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#define writestr(s) assert(write(fd, s, strlen(s)) >= 0)
int
main(int argc, char **argv)
{
int fd;
char buf[100];
int len;
if (argc != 2) {
fprintf(stderr, "Usage: %s device\n", argv[0]);
return 1;
}
fd = open(argv[1], O_RDWR);
if (fd < 0) {
perror("open:");
return 1;
}
writestr("Hello world!\n");
writestr("What is your name?\n");
len = read(fd, buf, sizeof(buf) - 1);
assert(len >= 0);
buf[len] = 0;
printf("Got input: %s", buf);
writestr("I ♥ ");
writestr(buf);
writestr("a\t tab and a\n line break in one write\n");
len = read(fd, buf, sizeof(buf) - 1);
assert(len >= 0);
buf[len] = 0;
printf("Got input: %s", buf);
writestr("bye!\n");
close(fd);
return 0;
}
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