182 lines
4.2 KiB
C
182 lines
4.2 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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* bad calls to execv()
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*/
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#include <sys/types.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <err.h>
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#include "config.h"
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#include "test.h"
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static
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int
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exec_common_fork(void)
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{
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int pid, rv, status, err;
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/*
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* This does not happen in a test context (from the point of
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* view of report.c) so we have to fiddle a bit.
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*/
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pid = fork();
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if (pid<0) {
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err = errno;
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report_begin("forking for test");
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report_result(pid, err);
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report_aborted();
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return -1;
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}
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if (pid==0) {
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/* child */
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return 0;
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}
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rv = waitpid(pid, &status, 0);
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if (rv == -1) {
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err = errno;
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report_begin("waiting for test subprocess");
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report_result(rv, err);
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report_failure();
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return -1;
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}
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if (WIFEXITED(status) && WEXITSTATUS(status) == MAGIC_STATUS) {
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return 1;
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}
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/* Oops... */
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report_begin("exit code of subprocess; should be %d", MAGIC_STATUS);
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if (WIFSIGNALED(status)) {
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report_warnx("signal %d", WTERMSIG(status));
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}
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else {
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report_warnx("exit %d", WEXITSTATUS(status));
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}
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report_failure();
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return -1;
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}
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static
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void
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exec_badprog(const void *prog, const char *desc)
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{
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int rv;
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char *args[2];
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args[0] = (char *)"foo";
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args[1] = NULL;
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if (exec_common_fork() != 0) {
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return;
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}
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report_begin(desc);
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rv = execv(prog, args);
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report_check(rv, errno, EFAULT);
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exit(MAGIC_STATUS);
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}
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static
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void
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exec_emptyprog(void)
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{
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int rv;
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char *args[2];
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args[0] = (char *)"foo";
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args[1] = NULL;
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if (exec_common_fork() != 0) {
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return;
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}
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report_begin("exec the empty string");
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rv = execv("", args);
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report_check2(rv, errno, EINVAL, EISDIR);
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exit(MAGIC_STATUS);
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}
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static
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void
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exec_badargs(void *args, const char *desc)
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{
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int rv;
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if (exec_common_fork() != 0) {
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return;
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}
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report_begin(desc);
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rv = execv("/bin/true", args);
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report_check(rv, errno, EFAULT);
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exit(MAGIC_STATUS);
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}
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static
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void
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exec_onearg(void *ptr, const char *desc)
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{
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int rv;
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char *args[3];
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args[0] = (char *)"foo";
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args[1] = (char *)ptr;
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args[2] = NULL;
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if (exec_common_fork() != 0) {
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return;
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}
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report_begin(desc);
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rv = execv("/bin/true", args);
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report_check(rv, errno, EFAULT);
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exit(MAGIC_STATUS);
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}
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void
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test_execv(void)
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{
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exec_badprog(NULL, "exec with NULL program");
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exec_badprog(INVAL_PTR, "exec with invalid pointer program");
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exec_badprog(KERN_PTR, "exec with kernel pointer program");
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exec_emptyprog();
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exec_badargs(NULL, "exec with NULL arglist");
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exec_badargs(INVAL_PTR, "exec with invalid pointer arglist");
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exec_badargs(KERN_PTR, "exec with kernel pointer arglist");
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exec_onearg(INVAL_PTR, "exec with invalid pointer arg");
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exec_onearg(KERN_PTR, "exec with kernel pointer arg");
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}
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