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libvirt/tests/commandtest.c

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/*
* commandtest.c: Test the libCommand API
*
* Copyright (C) 2010-2011 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "testutils.h"
#include "internal.h"
#include "nodeinfo.h"
#include "util.h"
#include "memory.h"
#include "command.h"
#include "virfile.h"
#include "virpidfile.h"
#ifdef WIN32
int
main(void)
{
return EXIT_AM_SKIP;
}
#else
static int checkoutput(const char *testname)
{
int ret = -1;
char *expectname = NULL;
char *expectlog = NULL;
char *actualname = NULL;
char *actuallog = NULL;
if (virAsprintf(&expectname, "%s/commanddata/%s.log", abs_srcdir,
testname) < 0)
goto cleanup;
if (virAsprintf(&actualname, "%s/commandhelper.log", abs_builddir) < 0)
goto cleanup;
if (virFileReadAll(expectname, 1024*64, &expectlog) < 0) {
fprintf(stderr, "cannot read %s\n", expectname);
goto cleanup;
}
if (virFileReadAll(actualname, 1024*64, &actuallog) < 0) {
fprintf(stderr, "cannot read %s\n", actualname);
goto cleanup;
}
if (STRNEQ(expectlog, actuallog)) {
virtTestDifference(stderr, expectlog, actuallog);
goto cleanup;
}
ret = 0;
cleanup:
if (actualname)
unlink(actualname);
VIR_FREE(actuallog);
VIR_FREE(actualname);
VIR_FREE(expectlog);
VIR_FREE(expectname);
return ret;
}
/*
* Run program, no args, inherit all ENV, keep CWD.
* Only stdin/out/err open
* No slot for return status must log error.
*/
static int test0(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd;
int ret = -1;
cmd = virCommandNew(abs_builddir "/commandhelper-doesnotexist");
if (virCommandRun(cmd, NULL) == 0)
goto cleanup;
if (virGetLastError() == NULL)
goto cleanup;
virResetLastError();
ret = 0;
cleanup:
virCommandFree(cmd);
return ret;
}
/*
* Run program, no args, inherit all ENV, keep CWD.
* Only stdin/out/err open
* Capturing return status must not log error.
*/
static int test1(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd;
int ret = -1;
int status;
cmd = virCommandNew(abs_builddir "/commandhelper-doesnotexist");
if (virCommandRun(cmd, &status) < 0)
goto cleanup;
if (status == 0)
goto cleanup;
ret = 0;
cleanup:
virCommandFree(cmd);
return ret;
}
/*
* Run program (twice), no args, inherit all ENV, keep CWD.
* Only stdin/out/err open
*/
static int test2(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
int ret;
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
if ((ret = checkoutput("test2")) != 0) {
virCommandFree(cmd);
return ret;
}
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
virCommandFree(cmd);
return checkoutput("test2");
}
/*
* Run program, no args, inherit all ENV, keep CWD.
* stdin/out/err + two extra FD open
*/
static int test3(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
int newfd1 = dup(STDERR_FILENO);
int newfd2 = dup(STDERR_FILENO);
int newfd3 = dup(STDERR_FILENO);
int ret = -1;
virCommandPreserveFD(cmd, newfd1);
virCommandTransferFD(cmd, newfd3);
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
goto cleanup;
}
if (fcntl(newfd1, F_GETFL) < 0 ||
fcntl(newfd2, F_GETFL) < 0 ||
fcntl(newfd3, F_GETFL) >= 0) {
puts("fds in wrong state");
goto cleanup;
}
ret = checkoutput("test3");
cleanup:
virCommandFree(cmd);
VIR_FORCE_CLOSE(newfd1);
VIR_FORCE_CLOSE(newfd2);
return ret;
}
/*
* Run program, no args, inherit all ENV, CWD is /
* Only stdin/out/err open.
* Daemonized
*/
static int test4(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
char *pidfile = virPidFileBuildPath(abs_builddir, "commandhelper");
pid_t pid;
int ret = -1;
if (!pidfile)
goto cleanup;
virCommandSetPidFile(cmd, pidfile);
virCommandDaemonize(cmd);
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
goto cleanup;
}
if (virPidFileRead(abs_builddir, "commandhelper", &pid) < 0) {
printf("cannot read pidfile\n");
goto cleanup;
}
while (kill(pid, 0) != -1)
usleep(100*1000);
ret = checkoutput("test4");
cleanup:
virCommandFree(cmd);
if (pidfile)
unlink(pidfile);
VIR_FREE(pidfile);
return ret;
}
/*
* Run program, no args, inherit filtered ENV, keep CWD.
* Only stdin/out/err open
*/
static int test5(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
virCommandAddEnvPassCommon(cmd);
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
virCommandFree(cmd);
return checkoutput("test5");
}
/*
* Run program, no args, inherit filtered ENV, keep CWD.
* Only stdin/out/err open
*/
static int test6(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
virCommandAddEnvPass(cmd, "DISPLAY");
virCommandAddEnvPass(cmd, "DOESNOTEXIST");
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
virCommandFree(cmd);
return checkoutput("test6");
}
/*
* Run program, no args, inherit filtered ENV, keep CWD.
* Only stdin/out/err open
*/
static int test7(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
virCommandAddEnvPassCommon(cmd);
virCommandAddEnvPass(cmd, "DISPLAY");
virCommandAddEnvPass(cmd, "DOESNOTEXIST");
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
virCommandFree(cmd);
return checkoutput("test7");
}
/*
* Run program, no args, inherit filtered ENV, keep CWD.
* Only stdin/out/err open
*/
static int test8(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
virCommandAddEnvString(cmd, "LANG=C");
virCommandAddEnvPair(cmd, "USER", "test");
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
virCommandFree(cmd);
return checkoutput("test8");
}
/*
* Run program, some args, inherit all ENV, keep CWD.
* Only stdin/out/err open
*/
static int test9(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
const char* const args[] = { "arg1", "arg2", NULL };
virCommandAddArg(cmd, "-version");
virCommandAddArgPair(cmd, "-log", "bar.log");
virCommandAddArgSet(cmd, args);
virCommandAddArgList(cmd, "arg3", "arg4", NULL);
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
virCommandFree(cmd);
return checkoutput("test9");
}
/*
* Run program, some args, inherit all ENV, keep CWD.
* Only stdin/out/err open
*/
static int test10(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
const char *const args[] = {
"-version", "-log=bar.log", NULL,
};
virCommandAddArgSet(cmd, args);
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
virCommandFree(cmd);
return checkoutput("test10");
}
/*
* Run program, some args, inherit all ENV, keep CWD.
* Only stdin/out/err open
*/
static int test11(const void *unused ATTRIBUTE_UNUSED)
{
const char *args[] = {
abs_builddir "/commandhelper",
"-version", "-log=bar.log", NULL,
};
virCommandPtr cmd = virCommandNewArgs(args);
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
virCommandFree(cmd);
return checkoutput("test11");
}
/*
* Run program, no args, inherit all ENV, keep CWD.
* Only stdin/out/err open. Set stdin data
*/
static int test12(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
virCommandSetInputBuffer(cmd, "Hello World\n");
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
virCommandFree(cmd);
return -1;
}
virCommandFree(cmd);
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 ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
char *outactual = NULL;
const char *outexpect = "BEGIN STDOUT\n"
"Hello World\n"
"END STDOUT\n";
int ret = -1;
virCommandSetInputBuffer(cmd, "Hello World\n");
virCommandSetOutputBuffer(cmd, &outactual);
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
goto cleanup;
}
if (!outactual)
goto cleanup;
virCommandFree(cmd);
cmd = NULL;
if (!STREQ(outactual, outexpect)) {
virtTestDifference(stderr, outactual, outexpect);
goto cleanup;
}
ret = checkoutput("test13");
cleanup:
virCommandFree(cmd);
VIR_FREE(outactual);
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 ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
char *outactual = NULL;
const char *outexpect = "BEGIN STDOUT\n"
"Hello World\n"
"END STDOUT\n";
char *erractual = NULL;
const char *errexpect = "BEGIN STDERR\n"
"Hello World\n"
"END STDERR\n";
int ret = -1;
virCommandSetInputBuffer(cmd, "Hello World\n");
virCommandSetOutputBuffer(cmd, &outactual);
virCommandSetErrorBuffer(cmd, &erractual);
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
goto cleanup;
}
if (!outactual || !erractual)
goto cleanup;
virCommandFree(cmd);
cmd = NULL;
if (!STREQ(outactual, outexpect)) {
virtTestDifference(stderr, outactual, outexpect);
goto cleanup;
}
if (!STREQ(erractual, errexpect)) {
virtTestDifference(stderr, erractual, errexpect);
goto cleanup;
}
ret = checkoutput("test14");
cleanup:
virCommandFree(cmd);
VIR_FREE(outactual);
VIR_FREE(erractual);
return ret;
}
/*
* Run program, no args, inherit all ENV, change CWD.
* Only stdin/out/err open
*/
static int test15(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew(abs_builddir "/commandhelper");
char *cwd = NULL;
int ret = -1;
if (virAsprintf(&cwd, "%s/commanddata", abs_srcdir) < 0)
goto cleanup;
virCommandSetWorkingDirectory(cmd, cwd);
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
goto cleanup;
}
ret = checkoutput("test15");
cleanup:
VIR_FREE(cwd);
virCommandFree(cmd);
return ret;
}
/*
* Don't run program; rather, log what would be run.
*/
static int test16(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew("true");
char *outactual = NULL;
const char *outexpect = "A=B true C";
int ret = -1;
int fd = -1;
virCommandAddEnvPair(cmd, "A", "B");
virCommandAddArg(cmd, "C");
if ((outactual = virCommandToString(cmd)) == NULL) {
virErrorPtr err = virGetLastError();
printf("Cannot convert to string: %s\n", err->message);
goto cleanup;
}
if ((fd = open(abs_builddir "/commandhelper.log",
O_CREAT | O_TRUNC | O_WRONLY, 0600)) < 0) {
printf("Cannot open log file: %s\n", strerror (errno));
goto cleanup;
}
virCommandWriteArgLog(cmd, fd);
if (VIR_CLOSE(fd) < 0) {
printf("Cannot close log file: %s\n", strerror (errno));
goto cleanup;
}
if (!STREQ(outactual, outexpect)) {
virtTestDifference(stderr, outactual, outexpect);
goto cleanup;
}
ret = checkoutput("test16");
cleanup:
virCommandFree(cmd);
VIR_FORCE_CLOSE(fd);
VIR_FREE(outactual);
return ret;
}
/*
* Test string handling when no output is present.
*/
static int test17(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNew("true");
int ret = -1;
char *outbuf;
char *errbuf;
virCommandSetOutputBuffer(cmd, &outbuf);
if (outbuf != NULL) {
puts("buffer not sanitized at registration");
goto cleanup;
}
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
goto cleanup;
}
if (!outbuf || *outbuf) {
puts("output buffer is not an allocated empty string");
goto cleanup;
}
VIR_FREE(outbuf);
if ((outbuf = strdup("should not be leaked")) == NULL) {
puts("test framework failure");
goto cleanup;
}
virCommandSetErrorBuffer(cmd, &errbuf);
if (errbuf != NULL) {
puts("buffer not sanitized at registration");
goto cleanup;
}
if (virCommandRun(cmd, NULL) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
goto cleanup;
}
if (!outbuf || *outbuf || !errbuf || *errbuf) {
puts("output buffers are not allocated empty strings");
goto cleanup;
}
ret = 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(outbuf);
VIR_FREE(errbuf);
return ret;
}
/*
* Run long-running daemon, to ensure no hang.
*/
static int test18(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNewArgList("sleep", "100", NULL);
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) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
goto cleanup;
}
alarm(0);
if (virPidFileRead(abs_builddir, "commandhelper", &pid) < 0) {
printf("cannot read pidfile\n");
goto cleanup;
}
virCommandFree(cmd);
cmd = NULL;
if (kill(pid, 0) != 0) {
printf("daemon should still be running\n");
goto cleanup;
}
while (kill(pid, SIGINT) != -1)
usleep(100*1000);
ret = 0;
cleanup:
virCommandFree(cmd);
if (pidfile)
unlink(pidfile);
VIR_FREE(pidfile);
return ret;
}
/*
* Asynchronously run long-running daemon, to ensure no hang.
*/
static int test19(const void *unused ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = virCommandNewArgList("sleep", "100", NULL);
pid_t pid;
int ret = -1;
alarm(5);
if (virCommandRunAsync(cmd, &pid) < 0) {
virErrorPtr err = virGetLastError();
printf("Cannot run child %s\n", err->message);
goto cleanup;
}
if (kill(pid, 0) != 0) {
printf("Child should still be running");
goto cleanup;
}
virCommandAbort(cmd);
if (kill(pid, 0) == 0) {
printf("Child should be aborted");
goto cleanup;
}
alarm(0);
ret = 0;
cleanup:
virCommandFree(cmd);
return ret;
}
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
mymain(void)
{
int ret = 0;
int fd;
if (chdir("/tmp") < 0)
return(EXIT_FAILURE);
setpgid(0, 0);
setsid();
/* Prime the debug/verbose settings from the env vars,
* since we're about to reset 'environ' */
virTestGetDebug();
virTestGetVerbose();
virInitialize();
/* Kill off any inherited fds that might interfere with our
* testing. */
fd = 3;
VIR_FORCE_CLOSE(fd);
fd = 4;
VIR_FORCE_CLOSE(fd);
fd = 5;
VIR_FORCE_CLOSE(fd);
environ = (char **)newenv;
# define DO_TEST(NAME) \
if (virtTestRun("Command Exec " #NAME " test", \
1, 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);
return(ret==0 ? EXIT_SUCCESS : EXIT_FAILURE);
}
VIRT_TEST_MAIN(mymain)
#endif /* !WIN32 */
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