109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
/*
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* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
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* The President and Fellows of Harvard College.
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University 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 UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* filetest.c
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*
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* Tests the filesystem by opening, writing to and reading from a
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* user specified file.
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*
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* This should run (on SFS) even before the file system assignment is started.
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* It should also continue to work once said assignment is complete.
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* It will not run fully on emufs, because emufs does not support remove().
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <err.h>
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int
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main(int argc, char *argv[])
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{
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static char writebuf[41] = "Twiddle dee dee, Twiddle dum dum.......\n";
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static char readbuf[41];
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const char *file;
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int fd, rv;
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if (argc == 0) {
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warnx("No arguments - running on \"testfile\"");
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file = "testfile";
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}
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else if (argc == 2) {
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file = argv[1];
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}
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else {
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errx(1, "Usage: filetest <filename>");
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}
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fd = open(file, O_WRONLY|O_CREAT|O_TRUNC, 0664);
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if (fd<0) {
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err(1, "%s: open for write", file);
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}
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rv = write(fd, writebuf, 40);
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if (rv<0) {
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err(1, "%s: write", file);
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}
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rv = close(fd);
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if (rv<0) {
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err(1, "%s: close (1st time)", file);
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}
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fd = open(file, O_RDONLY);
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if (fd<0) {
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err(1, "%s: open for read", file);
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}
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rv = read(fd, readbuf, 40);
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if (rv<0) {
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err(1, "%s: read", file);
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}
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rv = close(fd);
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if (rv<0) {
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err(1, "%s: close (2nd time)", file);
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}
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/* ensure null termination */
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readbuf[40] = 0;
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if (strcmp(readbuf, writebuf)) {
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errx(1, "Buffer data mismatch!");
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}
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rv = remove(file);
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if (rv<0) {
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err(1, "%s: remove", file);
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}
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tprintf("Passed filetest.\n");
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return 0;
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}
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