2cb47cb4c8
crash_prog was introduced to force-crash a userspace program since _exit may not yet be implemented. However, the new versions of OS161 already have the exact same logic as crash_prog in stdlib/exit.
80 lines
2.6 KiB
C
80 lines
2.6 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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* consoletest.c
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*
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* Tests whether console can be written to.
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*
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* This should run correctly when open and write syscalls are correctly implemented
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*/
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#include <stdlib.h>
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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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#include <test161/test161.h>
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int
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main(int argc, char **argv)
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{
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// Assume argument passing is *not* supported.
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(void) argc;
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(void) argv;
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int fd, fd1;
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// Attempt to open a file that we 'know' exists
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fd = open("bin/true", O_RDONLY);
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if(fd < 0) {
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err(-1, "Open syscall failed");
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}
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else if(fd < 3) {
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warnx("Open syscall returned number used by standard file descriptors (0,1,2)");
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}
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// Attempt to open the same file again. We should get a different fd
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fd1 = open("bin/true", O_RDONLY);
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if(fd1 < 0) {
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err(-1, "Open syscall failed");
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}
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else if(fd1 < 3) {
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warnx("Open syscall returned number used by standard file descriptors (0,1,2)");
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}
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else if(fd1 == fd) {
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err(-1, "Open syscall returned same file descriptor for second open() call\n");
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}
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success(TEST161_SUCCESS, SECRET, "/testbin/opentest");
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return 0;
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}
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