/* * Copyright (c) 2001 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include #include #include RCSID("$KTH: still-there-p.c,v 1.1.2.1 2001/04/28 22:09:39 lha Exp $"); #define TEST_BUFFER_SZ (1024*8) int main(int argc, char **argv) { const char *file = "foo"; char otherbuf[TEST_BUFFER_SZ]; char buf[TEST_BUFFER_SZ]; int fd; set_progname (argv[0]); fd = open (file, O_RDWR|O_TRUNC|O_CREAT, 0644); if (fd < 0) err(1, "open(%s)", file); if (write (fd, buf, sizeof(buf)) != sizeof(buf)) errx(1, "write"); while (1) { if (lseek(fd, 0, SEEK_SET) < 0) err(1, "lseek"); if (read(fd, otherbuf, sizeof(otherbuf)) != sizeof(otherbuf)) { struct stat sb; if (fstat(fd, &sb) < 0) err(1, "fstat"); printf("size: %d\n", (int)sb.st_size); printf ("lseek(SEEK_CUR): %d\n", (int)lseek(fd, 0, SEEK_CUR)); errx(1, "read"); } if (memcmp(buf, otherbuf, sizeof(buf)) != 0) errx (1, "buf != otherbuf"); } close(fd); return 0; }