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In one of recent commits I've introduced a new test case to commandtest. In the test case I'm using poll() to wait for data on a pipe (the write end is passed to commandhelper). However, on FreeBSD the POLLIN semantic is a bit different: POLLIN Data other than high priority data may be read without blocking. Well, the pipe is non-blocking, so even if there's no data to be read the flag is set (and subsequent read() returns 0). On the other hand, POLLHUP is set too, BUT, if the commandhelper manages to write everything into the pipe and die right after we'd get both POLLIN and POLLHUP after the very first time poll() returns. That's very unfortunate, but okay - we can just check whether read() returned zero and break from the reading loop. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
1341 lines
34 KiB
C
1341 lines
34 KiB
C
/*
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* commandtest.c: Test the libCommand API
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*
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* Copyright (C) 2010-2014 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/stat.h>
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#ifndef WIN32
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# include <sys/wait.h>
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# include <poll.h>
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#endif
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#include <fcntl.h>
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#include "testutils.h"
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#include "internal.h"
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#include "viralloc.h"
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#include "vircommand.h"
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#include "virfile.h"
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#include "virpidfile.h"
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#include "virerror.h"
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#include "virprocess.h"
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#include "virutil.h"
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#define VIR_FROM_THIS VIR_FROM_NONE
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#ifdef WIN32
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int
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main(void)
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{
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return EXIT_AM_SKIP;
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}
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#else
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/* Some UNIX lack it in headers & it doesn't hurt to redeclare */
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extern char **environ;
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static int checkoutput(const char *testname)
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{
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int ret = -1;
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g_autofree char *expectname = NULL;
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g_autofree char *actualname = NULL;
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g_autofree char *actuallog = NULL;
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expectname = g_strdup_printf("%s/commanddata/%s.log", abs_srcdir, testname);
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actualname = g_strdup_printf("%s/commandhelper.log", abs_builddir);
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if (virFileReadAll(actualname, 1024*64, &actuallog) < 0) {
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fprintf(stderr, "cannot read %s\n", actualname);
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goto cleanup;
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}
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ret = virTestCompareToFile(actuallog, expectname);
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cleanup:
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if (actualname)
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unlink(actualname);
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return ret;
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}
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/*
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* Run program, no args, inherit all ENV, keep CWD.
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* Only stdin/out/err open
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* No slot for return status must log error.
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*/
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static int test0(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = NULL;
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cmd = virCommandNew(abs_builddir "/commandhelper-doesnotexist");
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if (virCommandRun(cmd, NULL) == 0)
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return -1;
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if (virGetLastErrorCode() == VIR_ERR_OK)
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return -1;
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virResetLastError();
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return 0;
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}
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/*
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* Run program, no args, inherit all ENV, keep CWD.
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* Only stdin/out/err open
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* Capturing return status must not log error.
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*/
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static int test1(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = NULL;
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int status;
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cmd = virCommandNew(abs_builddir "/commandhelper-doesnotexist");
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if (virCommandRun(cmd, &status) < 0)
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return -1;
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if (status != EXIT_ENOENT)
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return -1;
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virCommandRawStatus(cmd);
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if (virCommandRun(cmd, &status) < 0)
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return -1;
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if (!WIFEXITED(status) || WEXITSTATUS(status) != EXIT_ENOENT)
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return -1;
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return 0;
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}
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/*
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* Run program (twice), no args, inherit all ENV, keep CWD.
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* Only stdin/out/err open
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*/
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static int test2(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
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int ret;
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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return -1;
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}
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if ((ret = checkoutput("test2")) != 0)
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return ret;
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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return -1;
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}
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return checkoutput("test2");
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}
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/*
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* Run program, no args, inherit all ENV, keep CWD.
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* stdin/out/err + two extra FD open
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*/
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static int test3(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
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VIR_AUTOCLOSE newfd1 = dup(STDERR_FILENO);
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VIR_AUTOCLOSE newfd2 = dup(STDERR_FILENO);
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int newfd3 = dup(STDERR_FILENO);
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struct stat before, after;
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if (fstat(newfd3, &before) < 0) {
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perror("fstat");
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return -1;
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}
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virCommandPassFD(cmd, newfd1, 0);
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virCommandPassFD(cmd, newfd3,
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VIR_COMMAND_PASS_FD_CLOSE_PARENT);
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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return -1;
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}
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if (fcntl(newfd1, F_GETFL) < 0 ||
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fcntl(newfd2, F_GETFL) < 0) {
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puts("fds 1/2 were not open");
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return -1;
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}
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/* We expect newfd3 to be closed, but the
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* fd might have already been reused by
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* the event loop. So if it is open, we
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* check if it matches the stat info we
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* got earlier
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*/
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if (fcntl(newfd3, F_GETFL) >= 0 &&
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fstat(newfd3, &after) >= 0) {
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if (before.st_ino == after.st_ino &&
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before.st_dev == after.st_dev &&
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before.st_mode == after.st_mode) {
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puts("fd 3 should not be open");
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return -1;
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}
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}
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return checkoutput("test3");
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}
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/*
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* Run program, no args, inherit all ENV, CWD is /
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* Only stdin/out/err open.
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* Daemonized
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*/
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static int test4(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = virCommandNewArgList(abs_builddir "/commandhelper",
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"--check-daemonize", NULL);
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g_autofree char *pidfile = virPidFileBuildPath(abs_builddir, "commandhelper");
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pid_t pid;
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int ret = -1;
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if (!pidfile)
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goto cleanup;
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virCommandSetPidFile(cmd, pidfile);
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virCommandDaemonize(cmd);
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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goto cleanup;
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}
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if (virPidFileRead(abs_builddir, "commandhelper", &pid) < 0) {
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printf("cannot read pidfile\n");
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goto cleanup;
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}
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while (kill(pid, 0) != -1)
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g_usleep(100*1000);
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ret = checkoutput("test4");
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cleanup:
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if (pidfile)
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unlink(pidfile);
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return ret;
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}
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/*
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* Run program, no args, inherit filtered ENV, keep CWD.
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* Only stdin/out/err open
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*/
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static int test5(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
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virCommandAddEnvPassCommon(cmd);
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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return -1;
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}
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return checkoutput("test5");
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}
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/*
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* Run program, no args, inherit filtered ENV, keep CWD.
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* Only stdin/out/err open
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*/
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static int test6(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
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virCommandAddEnvPass(cmd, "DISPLAY");
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virCommandAddEnvPass(cmd, "DOESNOTEXIST");
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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return -1;
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}
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return checkoutput("test6");
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}
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/*
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* Run program, no args, inherit filtered ENV, keep CWD.
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* Only stdin/out/err open
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*/
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static int test7(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
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virCommandAddEnvPassCommon(cmd);
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virCommandAddEnvPass(cmd, "DISPLAY");
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virCommandAddEnvPass(cmd, "DOESNOTEXIST");
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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return -1;
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}
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return checkoutput("test7");
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}
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/*
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* Run program, no args, inherit filtered ENV, keep CWD.
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* Only stdin/out/err open
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*/
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static int test8(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
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virCommandAddEnvString(cmd, "USER=bogus");
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virCommandAddEnvString(cmd, "LANG=C");
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virCommandAddEnvPair(cmd, "USER", "also bogus");
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virCommandAddEnvPair(cmd, "USER", "test");
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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return -1;
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}
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return checkoutput("test8");
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}
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|
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/*
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* Run program, some args, inherit all ENV, keep CWD.
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* Only stdin/out/err open
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*/
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static int test9(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
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const char* const args[] = { "arg1", "arg2", NULL };
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g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
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virCommandAddArg(cmd, "-version");
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virCommandAddArgPair(cmd, "-log", "bar.log");
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virCommandAddArgSet(cmd, args);
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virCommandAddArgBuffer(cmd, &buf);
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virBufferAddLit(&buf, "arg4");
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virCommandAddArgBuffer(cmd, &buf);
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virCommandAddArgList(cmd, "arg5", "arg6", NULL);
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if (virBufferUse(&buf)) {
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printf("Buffer not transferred\n");
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return -1;
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}
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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return -1;
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}
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|
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return checkoutput("test9");
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}
|
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|
|
|
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/*
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* Run program, some args, inherit all ENV, keep CWD.
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* Only stdin/out/err open
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*/
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static int test10(const void *unused G_GNUC_UNUSED)
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{
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g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
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const char *const args[] = {
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"-version", "-log=bar.log", NULL,
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};
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virCommandAddArgSet(cmd, args);
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if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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return -1;
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}
|
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return checkoutput("test10");
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}
|
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|
|
/*
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* Run program, some args, inherit all ENV, keep CWD.
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* Only stdin/out/err open
|
|
*/
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static int test11(const void *unused G_GNUC_UNUSED)
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|
{
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const char *args[] = {
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abs_builddir "/commandhelper",
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"-version", "-log=bar.log", NULL,
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};
|
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g_autoptr(virCommand) cmd = virCommandNewArgs(args);
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|
|
|
if (virCommandRun(cmd, NULL) < 0) {
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printf("Cannot run child %s\n", virGetLastErrorMessage());
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|
return -1;
|
|
}
|
|
|
|
return checkoutput("test11");
|
|
}
|
|
|
|
/*
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|
* Run program, no args, inherit all ENV, keep CWD.
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|
* Only stdin/out/err open. Set stdin data
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|
*/
|
|
static int test12(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
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|
|
|
virCommandSetInputBuffer(cmd, "Hello World\n");
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|
|
|
if (virCommandRun(cmd, NULL) < 0) {
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|
printf("Cannot run child %s\n", virGetLastErrorMessage());
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|
return -1;
|
|
}
|
|
|
|
return checkoutput("test12");
|
|
}
|
|
|
|
/*
|
|
* Run program, no args, inherit all ENV, keep CWD.
|
|
* Only stdin/out/err open. Set stdin data
|
|
*/
|
|
static int test13(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
virCommand *cmd = virCommandNew(abs_builddir "/commandhelper");
|
|
g_autofree char *outactual = NULL;
|
|
const char *outexpect = "BEGIN STDOUT\n"
|
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"Hello World\n"
|
|
"END STDOUT\n";
|
|
int ret = -1;
|
|
|
|
virCommandSetInputBuffer(cmd, "Hello World\n");
|
|
virCommandSetOutputBuffer(cmd, &outactual);
|
|
|
|
if (virCommandRun(cmd, NULL) < 0) {
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|
printf("Cannot run child %s\n", virGetLastErrorMessage());
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|
goto cleanup;
|
|
}
|
|
if (!outactual)
|
|
goto cleanup;
|
|
|
|
g_clear_pointer(&cmd, virCommandFree);
|
|
|
|
if (virTestCompareToString(outexpect, outactual) < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = checkoutput("test13");
|
|
|
|
cleanup:
|
|
virCommandFree(cmd);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Run program, no args, inherit all ENV, keep CWD.
|
|
* Only stdin/out/err open. Set stdin data
|
|
*/
|
|
static int test14(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
virCommand *cmd = virCommandNew(abs_builddir "/commandhelper");
|
|
g_autofree char *outactual = NULL;
|
|
const char *outexpect = "BEGIN STDOUT\n"
|
|
"Hello World\n"
|
|
"END STDOUT\n";
|
|
g_autofree char *erractual = NULL;
|
|
const char *errexpect = "BEGIN STDERR\n"
|
|
"Hello World\n"
|
|
"END STDERR\n";
|
|
|
|
g_autofree char *jointactual = NULL;
|
|
const char *jointexpect = "BEGIN STDOUT\n"
|
|
"BEGIN STDERR\n"
|
|
"Hello World\n"
|
|
"Hello World\n"
|
|
"END STDOUT\n"
|
|
"END STDERR\n";
|
|
int ret = -1;
|
|
|
|
virCommandSetInputBuffer(cmd, "Hello World\n");
|
|
virCommandSetOutputBuffer(cmd, &outactual);
|
|
virCommandSetErrorBuffer(cmd, &erractual);
|
|
|
|
if (virCommandRun(cmd, NULL) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
goto cleanup;
|
|
}
|
|
if (!outactual || !erractual)
|
|
goto cleanup;
|
|
|
|
virCommandFree(cmd);
|
|
|
|
cmd = virCommandNew(abs_builddir "/commandhelper");
|
|
virCommandSetInputBuffer(cmd, "Hello World\n");
|
|
virCommandSetOutputBuffer(cmd, &jointactual);
|
|
virCommandSetErrorBuffer(cmd, &jointactual);
|
|
if (virCommandRun(cmd, NULL) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
goto cleanup;
|
|
}
|
|
if (!jointactual)
|
|
goto cleanup;
|
|
|
|
if (virTestCompareToString(outexpect, outactual) < 0) {
|
|
goto cleanup;
|
|
}
|
|
if (virTestCompareToString(errexpect, erractual) < 0) {
|
|
goto cleanup;
|
|
}
|
|
if (virTestCompareToString(jointexpect, jointactual) < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = checkoutput("test14");
|
|
|
|
cleanup:
|
|
virCommandFree(cmd);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Run program, no args, inherit all ENV, change CWD.
|
|
* Only stdin/out/err open
|
|
*/
|
|
static int test15(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
|
|
g_autofree char *cwd = NULL;
|
|
|
|
cwd = g_strdup_printf("%s/commanddata", abs_srcdir);
|
|
virCommandSetWorkingDirectory(cmd, cwd);
|
|
virCommandSetUmask(cmd, 002);
|
|
|
|
if (virCommandRun(cmd, NULL) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
return -1;
|
|
}
|
|
|
|
return checkoutput("test15");
|
|
}
|
|
|
|
/*
|
|
* Don't run program; rather, log what would be run.
|
|
*/
|
|
static int test16(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNew("true");
|
|
g_autofree char *outactual = NULL;
|
|
const char *outexpect = "A=B C='D E' true F 'G H'";
|
|
VIR_AUTOCLOSE fd = -1;
|
|
|
|
virCommandAddEnvPair(cmd, "A", "B");
|
|
virCommandAddEnvPair(cmd, "C", "D E");
|
|
virCommandAddArg(cmd, "F");
|
|
virCommandAddArg(cmd, "G H");
|
|
|
|
if ((outactual = virCommandToString(cmd, false)) == NULL) {
|
|
printf("Cannot convert to string: %s\n", virGetLastErrorMessage());
|
|
return -1;
|
|
}
|
|
if ((fd = open(abs_builddir "/commandhelper.log",
|
|
O_CREAT | O_TRUNC | O_WRONLY, 0600)) < 0) {
|
|
printf("Cannot open log file: %s\n", g_strerror(errno));
|
|
return -1;
|
|
}
|
|
virCommandWriteArgLog(cmd, fd);
|
|
if (VIR_CLOSE(fd) < 0) {
|
|
printf("Cannot close log file: %s\n", g_strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if (virTestCompareToString(outexpect, outactual) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
return checkoutput("test16");
|
|
}
|
|
|
|
/*
|
|
* Test string handling when no output is present.
|
|
*/
|
|
static int test17(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNew("true");
|
|
int ret = -1;
|
|
char *outbuf = NULL;
|
|
g_autofree char *errbuf = NULL;
|
|
|
|
virCommandSetOutputBuffer(cmd, &outbuf);
|
|
if (outbuf != NULL) {
|
|
puts("buffer not sanitized at registration");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (virCommandRun(cmd, NULL) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
goto cleanup;
|
|
}
|
|
|
|
if (*outbuf) {
|
|
puts("output buffer is not an allocated empty string");
|
|
goto cleanup;
|
|
}
|
|
VIR_FREE(outbuf);
|
|
outbuf = g_strdup("should not be leaked");
|
|
|
|
virCommandSetErrorBuffer(cmd, &errbuf);
|
|
if (errbuf != NULL) {
|
|
puts("buffer not sanitized at registration");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (virCommandRun(cmd, NULL) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
goto cleanup;
|
|
}
|
|
|
|
if (*outbuf || *errbuf) {
|
|
puts("output buffers are not allocated empty strings");
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = 0;
|
|
cleanup:
|
|
VIR_FREE(outbuf);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Run long-running daemon, to ensure no hang.
|
|
*/
|
|
static int test18(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
virCommand *cmd = virCommandNewArgList("sleep", "100", NULL);
|
|
g_autofree char *pidfile = virPidFileBuildPath(abs_builddir, "commandhelper");
|
|
pid_t pid;
|
|
int ret = -1;
|
|
|
|
if (!pidfile)
|
|
goto cleanup;
|
|
|
|
virCommandSetPidFile(cmd, pidfile);
|
|
virCommandDaemonize(cmd);
|
|
|
|
alarm(5);
|
|
if (virCommandRun(cmd, NULL) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
goto cleanup;
|
|
}
|
|
alarm(0);
|
|
|
|
if (virPidFileRead(abs_builddir, "commandhelper", &pid) < 0) {
|
|
printf("cannot read pidfile\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
g_clear_pointer(&cmd, virCommandFree);
|
|
if (kill(pid, 0) != 0) {
|
|
printf("daemon should still be running\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
while (kill(pid, SIGINT) != -1)
|
|
g_usleep(100*1000);
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
virCommandFree(cmd);
|
|
if (pidfile)
|
|
unlink(pidfile);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Asynchronously run long-running daemon, to ensure no hang.
|
|
*/
|
|
static int test19(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNewArgList("sleep", "100", NULL);
|
|
pid_t pid;
|
|
|
|
alarm(5);
|
|
if (virCommandRunAsync(cmd, &pid) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
return -1;
|
|
}
|
|
|
|
if (kill(pid, 0) != 0) {
|
|
printf("Child should still be running");
|
|
return -1;
|
|
}
|
|
|
|
virCommandAbort(cmd);
|
|
|
|
if (kill(pid, 0) == 0) {
|
|
printf("Child should be aborted");
|
|
return -1;
|
|
}
|
|
|
|
alarm(0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Run program, no args, inherit all ENV, keep CWD.
|
|
* Ignore huge stdin data, to provoke SIGPIPE or EPIPE in parent.
|
|
*/
|
|
static int test20(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNewArgList(abs_builddir "/commandhelper",
|
|
"--close-stdin", NULL);
|
|
g_autofree char *buf = NULL;
|
|
|
|
struct sigaction sig_action;
|
|
|
|
sig_action.sa_handler = SIG_IGN;
|
|
sig_action.sa_flags = 0;
|
|
sigemptyset(&sig_action.sa_mask);
|
|
|
|
sigaction(SIGPIPE, &sig_action, NULL);
|
|
|
|
buf = g_strdup_printf("1\n%100000d\n", 2);
|
|
virCommandSetInputBuffer(cmd, buf);
|
|
|
|
if (virCommandRun(cmd, NULL) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
return -1;
|
|
}
|
|
|
|
return checkoutput("test20");
|
|
}
|
|
|
|
static const char *const newenv[] = {
|
|
"PATH=/usr/bin:/bin",
|
|
"HOSTNAME=test",
|
|
"LANG=C",
|
|
"HOME=/home/test",
|
|
"USER=test",
|
|
"LOGNAME=test",
|
|
"TMPDIR=/tmp",
|
|
"DISPLAY=:0.0",
|
|
NULL
|
|
};
|
|
|
|
static int test21(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
|
|
const char *wrbuf = "Hello world\n";
|
|
g_autofree char *outbuf = NULL;
|
|
g_autofree char *errbuf = NULL;
|
|
const char *outbufExpected = "BEGIN STDOUT\n"
|
|
"Hello world\n"
|
|
"END STDOUT\n";
|
|
const char *errbufExpected = "BEGIN STDERR\n"
|
|
"Hello world\n"
|
|
"END STDERR\n";
|
|
|
|
virCommandSetInputBuffer(cmd, wrbuf);
|
|
virCommandSetOutputBuffer(cmd, &outbuf);
|
|
virCommandSetErrorBuffer(cmd, &errbuf);
|
|
virCommandDoAsyncIO(cmd);
|
|
|
|
if (virCommandRunAsync(cmd, NULL) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
return -1;
|
|
}
|
|
|
|
if (virCommandWait(cmd, NULL) < 0)
|
|
return -1;
|
|
|
|
if (virTestGetVerbose())
|
|
printf("STDOUT:%s\nSTDERR:%s\n", NULLSTR(outbuf), NULLSTR(errbuf));
|
|
|
|
if (virTestCompareToString(outbufExpected, outbuf) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
if (virTestCompareToString(errbufExpected, errbuf) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
return checkoutput("test21");
|
|
}
|
|
|
|
static int
|
|
test22(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
int ret = -1;
|
|
virCommand *cmd;
|
|
int status = -1;
|
|
|
|
cmd = virCommandNewArgList("/bin/sh", "-c", "exit 3", NULL);
|
|
|
|
if (virCommandRun(cmd, &status) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
goto cleanup;
|
|
}
|
|
if (status != 3) {
|
|
printf("Unexpected status %d\n", status);
|
|
goto cleanup;
|
|
}
|
|
|
|
virCommandRawStatus(cmd);
|
|
if (virCommandRun(cmd, &status) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
goto cleanup;
|
|
}
|
|
if (!WIFEXITED(status) || WEXITSTATUS(status) != 3) {
|
|
printf("Unexpected status %d\n", status);
|
|
goto cleanup;
|
|
}
|
|
|
|
virCommandFree(cmd);
|
|
cmd = virCommandNewArgList("/bin/sh", "-c", "kill -9 $$", NULL);
|
|
|
|
if (virCommandRun(cmd, &status) == 0) {
|
|
printf("Death by signal not detected, status %d\n", status);
|
|
goto cleanup;
|
|
}
|
|
|
|
virCommandRawStatus(cmd);
|
|
if (virCommandRun(cmd, &status) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
goto cleanup;
|
|
}
|
|
if (!WIFSIGNALED(status) || WTERMSIG(status) != SIGKILL) {
|
|
printf("Unexpected status %d\n", status);
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = 0;
|
|
cleanup:
|
|
virCommandFree(cmd);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int
|
|
test23(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
/* Not strictly a virCommand test, but this is the easiest place
|
|
* to test this lower-level interface. It takes a double fork to
|
|
* test virProcessExitWithStatus. */
|
|
int status = -1;
|
|
pid_t pid;
|
|
|
|
if ((pid = virFork()) < 0)
|
|
return -1;
|
|
if (pid == 0) {
|
|
if ((pid = virFork()) < 0)
|
|
_exit(EXIT_FAILURE);
|
|
if (pid == 0)
|
|
_exit(42);
|
|
if (virProcessWait(pid, &status, true) < 0)
|
|
_exit(EXIT_FAILURE);
|
|
virProcessExitWithStatus(status);
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (virProcessWait(pid, &status, true) < 0)
|
|
return -1;
|
|
if (!WIFEXITED(status) || WEXITSTATUS(status) != 42) {
|
|
printf("Unexpected status %d\n", status);
|
|
return -1;
|
|
}
|
|
|
|
if ((pid = virFork()) < 0)
|
|
return -1;
|
|
if (pid == 0) {
|
|
if ((pid = virFork()) < 0)
|
|
_exit(EXIT_FAILURE);
|
|
if (pid == 0) {
|
|
raise(SIGKILL);
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
if (virProcessWait(pid, &status, true) < 0)
|
|
_exit(EXIT_FAILURE);
|
|
virProcessExitWithStatus(status);
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (virProcessWait(pid, &status, true) < 0)
|
|
return -1;
|
|
if (!WIFSIGNALED(status) || WTERMSIG(status) != SIGKILL) {
|
|
printf("Unexpected status %d\n", status);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int test25(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
int ret = -1;
|
|
int pipeFD[2] = { -1, -1};
|
|
int rv = 0;
|
|
ssize_t tries = 100;
|
|
pid_t pid;
|
|
g_autofree gid_t *groups = NULL;
|
|
int ngroups;
|
|
g_autoptr(virCommand) cmd = virCommandNew("some/nonexistent/binary");
|
|
|
|
if (virPipeQuiet(pipeFD) < 0) {
|
|
fprintf(stderr, "Unable to create pipe\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (virSetNonBlock(pipeFD[0]) < 0) {
|
|
fprintf(stderr, "Unable to make read end of pipe nonblocking\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if ((ngroups = virGetGroupList(virCommandGetUID(cmd), virCommandGetGID(cmd),
|
|
&groups)) < 0)
|
|
goto cleanup;
|
|
|
|
/* Now, fork and try to exec a nonexistent binary. */
|
|
pid = virFork();
|
|
if (pid < 0) {
|
|
fprintf(stderr, "Unable to spawn child\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (pid == 0) {
|
|
/* Child */
|
|
rv = virCommandExec(cmd, groups, ngroups);
|
|
|
|
if (safewrite(pipeFD[1], &rv, sizeof(rv)) < 0)
|
|
fprintf(stderr, "Unable to write to pipe\n");
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/* Parent */
|
|
while (--tries) {
|
|
if (saferead(pipeFD[0], &rv, sizeof(rv)) < 0) {
|
|
if (errno != EWOULDBLOCK) {
|
|
fprintf(stderr, "Unable to read from pipe\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
g_usleep(10 * 1000);
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!tries) {
|
|
fprintf(stderr, "Child hasn't returned anything\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
if (rv >= 0) {
|
|
fprintf(stderr, "Child should have returned an error\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = 0;
|
|
cleanup:
|
|
VIR_FORCE_CLOSE(pipeFD[0]);
|
|
VIR_FORCE_CLOSE(pipeFD[1]);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Don't run program; rather, log what would be run.
|
|
*/
|
|
static int test26(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNew("true");
|
|
g_autofree char *outactual = NULL;
|
|
const char *outexpect =
|
|
"A=B \\\n"
|
|
"C='D E' \\\n"
|
|
"true \\\n"
|
|
"--foo bar \\\n"
|
|
"--oooh \\\n"
|
|
"-f \\\n"
|
|
"--wizz 'eek eek' \\\n"
|
|
"--m-m-m-multiarg arg arg2 \\\n"
|
|
"-w \\\n"
|
|
"-z \\\n"
|
|
"-l \\\n"
|
|
"--mmm flash \\\n"
|
|
"bang \\\n"
|
|
"wallop";
|
|
|
|
VIR_AUTOCLOSE fd = -1;
|
|
|
|
virCommandAddEnvPair(cmd, "A", "B");
|
|
virCommandAddEnvPair(cmd, "C", "D E");
|
|
virCommandAddArgList(cmd, "--foo", "bar", "--oooh", "-f",
|
|
"--wizz", "eek eek",
|
|
"--m-m-m-multiarg", "arg", "arg2",
|
|
"-w", "-z", "-l",
|
|
"--mmm", "flash", "bang", "wallop",
|
|
NULL);
|
|
|
|
if ((outactual = virCommandToString(cmd, true)) == NULL) {
|
|
printf("Cannot convert to string: %s\n", virGetLastErrorMessage());
|
|
return -1;
|
|
}
|
|
if ((fd = open(abs_builddir "/commandhelper.log",
|
|
O_CREAT | O_TRUNC | O_WRONLY, 0600)) < 0) {
|
|
printf("Cannot open log file: %s\n", g_strerror(errno));
|
|
return -1;
|
|
}
|
|
virCommandWriteArgLog(cmd, fd);
|
|
if (VIR_CLOSE(fd) < 0) {
|
|
printf("Cannot close log file: %s\n", g_strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if (virTestCompareToString(outexpect, outactual) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
return checkoutput("test26");
|
|
}
|
|
|
|
static int test27(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
|
|
int buf1fd;
|
|
int buf2fd;
|
|
size_t buflen = 1024 * 128;
|
|
g_autofree char *buffer0 = NULL;
|
|
g_autofree unsigned char *buffer1 = NULL;
|
|
g_autofree unsigned char *buffer2 = NULL;
|
|
g_autofree char *outactual = NULL;
|
|
g_autofree char *erractual = NULL;
|
|
g_autofree char *outexpect = NULL;
|
|
# define TEST27_OUTEXPECT_TEMP "BEGIN STDOUT\n" \
|
|
"%s%s%s" \
|
|
"END STDOUT\n"
|
|
g_autofree char *errexpect = NULL;
|
|
# define TEST27_ERREXPECT_TEMP "BEGIN STDERR\n" \
|
|
"%s%s%s" \
|
|
"END STDERR\n"
|
|
|
|
buffer0 = g_new0(char, buflen);
|
|
buffer1 = g_new0(unsigned char, buflen);
|
|
buffer2 = g_new0(unsigned char, buflen);
|
|
|
|
memset(buffer0, 'H', buflen - 2);
|
|
buffer0[buflen - 2] = '\n';
|
|
buffer0[buflen - 1] = 0;
|
|
|
|
memset(buffer1, '1', buflen - 2);
|
|
buffer1[buflen - 2] = '\n';
|
|
buffer1[buflen - 1] = 0;
|
|
|
|
memset(buffer2, '2', buflen - 2);
|
|
buffer2[buflen - 2] = '\n';
|
|
buffer2[buflen - 1] = 0;
|
|
|
|
outexpect = g_strdup_printf(TEST27_OUTEXPECT_TEMP,
|
|
buffer0, buffer1, buffer2);
|
|
errexpect = g_strdup_printf(TEST27_ERREXPECT_TEMP,
|
|
buffer0, buffer1, buffer2);
|
|
|
|
buf1fd = virCommandSetSendBuffer(cmd, &buffer1, buflen - 1);
|
|
buf2fd = virCommandSetSendBuffer(cmd, &buffer2, buflen - 1);
|
|
|
|
virCommandAddArg(cmd, "--readfd");
|
|
virCommandAddArgFormat(cmd, "%d", buf1fd);
|
|
|
|
virCommandAddArg(cmd, "--readfd");
|
|
virCommandAddArgFormat(cmd, "%d", buf2fd);
|
|
|
|
virCommandSetInputBuffer(cmd, buffer0);
|
|
virCommandSetOutputBuffer(cmd, &outactual);
|
|
virCommandSetErrorBuffer(cmd, &erractual);
|
|
|
|
if (virCommandRun(cmd, NULL) < 0) {
|
|
printf("Cannot run child %s\n", virGetLastErrorMessage());
|
|
return -1;
|
|
}
|
|
|
|
if (!outactual || !erractual)
|
|
return -1;
|
|
|
|
if (virTestCompareToString(outexpect, outactual) < 0) {
|
|
return -1;
|
|
}
|
|
if (virTestCompareToString(errexpect, erractual) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
if (checkoutput("test27") < 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
test28Callback(pid_t pid G_GNUC_UNUSED,
|
|
void *opaque G_GNUC_UNUSED)
|
|
{
|
|
virReportSystemError(ENODATA, "%s", "some error message");
|
|
return -1;
|
|
}
|
|
|
|
|
|
static int
|
|
test28(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
/* Not strictly a virCommand test, but this is the easiest place
|
|
* to test this lower-level interface. */
|
|
virErrorPtr err;
|
|
g_autofree char *msg = g_strdup_printf("some error message: %s", g_strerror(ENODATA));
|
|
|
|
if (virProcessRunInFork(test28Callback, NULL) != -1) {
|
|
fprintf(stderr, "virProcessRunInFork did not fail\n");
|
|
return -1;
|
|
}
|
|
|
|
if (!(err = virGetLastError())) {
|
|
fprintf(stderr, "Expected error but got nothing\n");
|
|
return -1;
|
|
}
|
|
|
|
if (!(err->code == VIR_ERR_SYSTEM_ERROR &&
|
|
err->domain == 0 &&
|
|
STREQ(err->message, msg) &&
|
|
err->level == VIR_ERR_ERROR &&
|
|
STREQ(err->str1, "%s") &&
|
|
STREQ(err->str2, msg) &&
|
|
err->int1 == ENODATA &&
|
|
err->int2 == -1)) {
|
|
fprintf(stderr, "Unexpected error object\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
test29(const void *unused G_GNUC_UNUSED)
|
|
{
|
|
g_autoptr(virCommand) cmd = virCommandNew(abs_builddir "/commandhelper");
|
|
g_autofree char *pidfile = virPidFileBuildPath(abs_builddir, "commandhelper");
|
|
pid_t pid;
|
|
int buffd;
|
|
VIR_AUTOCLOSE outfd = -1;
|
|
size_t buflen = 1024 * 10;
|
|
g_autofree unsigned char *buffer = NULL;
|
|
g_autofree char *outactual = NULL;
|
|
g_autofree char *outexpect = NULL;
|
|
size_t i;
|
|
size_t outactuallen = 0;
|
|
int ret = -1;
|
|
|
|
if (!pidfile)
|
|
return -1;
|
|
|
|
buffer = g_new0(unsigned char, buflen + 1);
|
|
for (i = 0; i < buflen; i++) {
|
|
buffer[i] = 'a' + i % ('z' - 'a' + 1);
|
|
}
|
|
buffer[buflen] = '\0';
|
|
|
|
outexpect = g_strdup_printf("BEGIN STDOUT\n%sEND STDOUT\n", buffer);
|
|
|
|
buffd = virCommandSetSendBuffer(cmd, &buffer, buflen);
|
|
|
|
virCommandAddArg(cmd, "--close-stdin");
|
|
virCommandAddArg(cmd, "--check-daemonize");
|
|
virCommandAddArg(cmd, "--readfd");
|
|
virCommandAddArgFormat(cmd, "%d", buffd);
|
|
|
|
virCommandSetOutputFD(cmd, &outfd);
|
|
virCommandSetPidFile(cmd, pidfile);
|
|
virCommandDaemonize(cmd);
|
|
virCommandDoAsyncIO(cmd);
|
|
|
|
if (virCommandRun(cmd, NULL) < 0) {
|
|
fprintf(stderr, "Cannot run child %s\n", virGetLastErrorMessage());
|
|
goto cleanup;
|
|
}
|
|
|
|
if (virPidFileReadPath(pidfile, &pid) < 0) {
|
|
fprintf(stderr, "cannot read pidfile: %s\n", pidfile);
|
|
goto cleanup;
|
|
}
|
|
|
|
while (1) {
|
|
char buf[1024] = { 0 };
|
|
struct pollfd pfd = {.fd = outfd, .events = POLLIN, .revents = 0};
|
|
int rc = 0;
|
|
|
|
rc = poll(&pfd, 1, 1000);
|
|
if (rc < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
|
|
fprintf(stderr, "poll() returned errno = %d\n", errno);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (pfd.revents & POLLIN) {
|
|
rc = read(outfd, buf, sizeof(buf));
|
|
if (rc < 0) {
|
|
fprintf(stderr, "cannot read from output pipe: errno=%d\n", errno);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (rc == 0)
|
|
break;
|
|
|
|
outactual = g_renew(char, outactual, outactuallen + rc + 1);
|
|
memcpy(outactual + outactuallen, buf, rc);
|
|
outactuallen += rc;
|
|
outactual[outactuallen] = '\0';
|
|
} else if (pfd.revents & POLLERR ||
|
|
pfd.revents & POLLHUP) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (virTestCompareToString(outexpect, outactual) < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = checkoutput("test29");
|
|
|
|
cleanup:
|
|
if (pidfile)
|
|
unlink(pidfile);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int
|
|
mymain(void)
|
|
{
|
|
int ret = 0;
|
|
int fd;
|
|
int virinitret;
|
|
|
|
if (chdir("/tmp") < 0)
|
|
return EXIT_FAILURE;
|
|
|
|
umask(022);
|
|
|
|
setpgid(0, 0);
|
|
ignore_value(setsid());
|
|
|
|
/* Our test expects particular fd values; to get that, we must not
|
|
* leak fds that we inherited from a lazy parent. At the same
|
|
* time, virInitialize may open some fds (perhaps via third-party
|
|
* libraries that it uses), and we must not kill off an fd that
|
|
* this process opens as it might break expectations of a
|
|
* pthread_atfork handler, as well as interfering with our tests
|
|
* trying to ensure we aren't leaking to our children. The
|
|
* solution is to do things in two phases - reserve the fds we
|
|
* want by overwriting any externally inherited fds, then
|
|
* initialize, then clear the slots for testing. */
|
|
if ((fd = open("/dev/null", O_RDONLY)) < 0 ||
|
|
dup2(fd, 3) < 0 ||
|
|
dup2(fd, 4) < 0 ||
|
|
dup2(fd, 5) < 0 ||
|
|
dup2(fd, 6) < 0 ||
|
|
dup2(fd, 7) < 0 ||
|
|
dup2(fd, 8) < 0 ||
|
|
(fd > 8 && VIR_CLOSE(fd) < 0)) {
|
|
VIR_FORCE_CLOSE(fd);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
/* Prime the debug/verbose settings from the env vars,
|
|
* since we're about to reset 'environ' */
|
|
ignore_value(virTestGetDebug());
|
|
ignore_value(virTestGetVerbose());
|
|
ignore_value(virTestGetRegenerate());
|
|
|
|
/* Make sure to not leak fd's */
|
|
virinitret = virInitialize();
|
|
|
|
/* Phase two of killing interfering fds; see above. */
|
|
fd = 3;
|
|
VIR_FORCE_CLOSE(fd);
|
|
fd = 4;
|
|
VIR_FORCE_CLOSE(fd);
|
|
fd = 5;
|
|
VIR_FORCE_CLOSE(fd);
|
|
fd = 6;
|
|
VIR_FORCE_CLOSE(fd);
|
|
fd = 7;
|
|
VIR_FORCE_CLOSE(fd);
|
|
fd = 8;
|
|
VIR_FORCE_CLOSE(fd);
|
|
|
|
if (virinitret < 0)
|
|
return EXIT_FAILURE;
|
|
|
|
environ = (char **)newenv;
|
|
|
|
# define DO_TEST(NAME) \
|
|
if (virTestRun("Command Exec " #NAME " test", \
|
|
NAME, NULL) < 0) \
|
|
ret = -1
|
|
|
|
DO_TEST(test0);
|
|
DO_TEST(test1);
|
|
DO_TEST(test2);
|
|
DO_TEST(test3);
|
|
DO_TEST(test4);
|
|
DO_TEST(test5);
|
|
DO_TEST(test6);
|
|
DO_TEST(test7);
|
|
DO_TEST(test8);
|
|
DO_TEST(test9);
|
|
DO_TEST(test10);
|
|
DO_TEST(test11);
|
|
DO_TEST(test12);
|
|
DO_TEST(test13);
|
|
DO_TEST(test14);
|
|
DO_TEST(test15);
|
|
DO_TEST(test16);
|
|
DO_TEST(test17);
|
|
DO_TEST(test18);
|
|
DO_TEST(test19);
|
|
DO_TEST(test20);
|
|
DO_TEST(test21);
|
|
DO_TEST(test22);
|
|
DO_TEST(test23);
|
|
DO_TEST(test25);
|
|
DO_TEST(test26);
|
|
DO_TEST(test27);
|
|
DO_TEST(test28);
|
|
DO_TEST(test29);
|
|
|
|
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}
|
|
|
|
VIR_TEST_MAIN(mymain)
|
|
|
|
#endif /* !WIN32 */
|