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/*
* commandhelper.c: Auxiliary program for commandtest
*
* Copyright (C) 2010-2014 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, see
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
#include "internal.h"
#include "virutil.h"
#include "viralloc.h"
#include "virfile.h"
#include "testutils.h"
#include "virstring.h"
#ifndef WIN32
# define VIR_FROM_THIS VIR_FROM_NONE
static int envsort(const void *a, const void *b)
{
const char *const*astrptr = a;
const char *const*bstrptr = b;
const char *astr = *astrptr;
const char *bstr = *bstrptr;
char *aeq = strchr(astr, '=');
char *beq = strchr(bstr, '=');
char *akey;
char *bkey;
int ret;
ignore_value(VIR_STRNDUP_QUIET(akey, astr, aeq - astr));
ignore_value(VIR_STRNDUP_QUIET(bkey, bstr, beq - bstr));
ret = strcmp(akey, bkey);
VIR_FREE(akey);
VIR_FREE(bkey);
return ret;
}
int main(int argc, char **argv) {
size_t i, n;
int open_max;
char **origenv;
char **newenv = NULL;
char *cwd;
FILE *log = fopen(abs_builddir "/commandhelper.log", "w");
int ret = EXIT_FAILURE;
if (!log)
goto cleanup;
for (i = 1; i < argc; i++) {
fprintf(log, "ARG:%s\n", argv[i]);
}
origenv = environ;
n = 0;
while (*origenv != NULL) {
n++;
origenv++;
}
if (VIR_ALLOC_N_QUIET(newenv, n) < 0)
goto cleanup;
origenv = environ;
n = i = 0;
while (*origenv != NULL) {
newenv[i++] = *origenv;
n++;
origenv++;
}
qsort(newenv, n, sizeof(newenv[0]), envsort);
for (i = 0; i < n; i++) {
/* Ignore the variables used to instruct the loader into
* behaving differently, as they could throw the tests off. */
if (!STRPREFIX(newenv[i], "LD_"))
fprintf(log, "ENV:%s\n", newenv[i]);
}
open_max = sysconf(_SC_OPEN_MAX);
if (open_max < 0)
goto cleanup;
for (i = 0; i < open_max; i++) {
int f;
int closed;
if (i == fileno(log))
continue;
closed = fcntl(i, F_GETFD, &f) == -1 &&
errno == EBADF;
if (!closed)
fprintf(log, "FD:%zu\n", i);
}
fprintf(log, "DAEMON:%s\n", getpgrp() == getsid(0) ? "yes" : "no");
if (!(cwd = getcwd(NULL, 0)))
goto cleanup;
if (strlen(cwd) > strlen(".../commanddata") &&
STREQ(cwd + strlen(cwd) - strlen("/commanddata"), "/commanddata"))
strcpy(cwd, ".../commanddata");
fprintf(log, "CWD:%s\n", cwd);
VIR_FREE(cwd);
fprintf(log, "UMASK:%04o\n", umask(0));
if (argc > 1 && STREQ(argv[1], "--close-stdin")) {
if (freopen("/dev/null", "r", stdin) != stdin)
goto cleanup;
usleep(100*1000);
}
char buf[1024];
ssize_t got;
fprintf(stdout, "BEGIN STDOUT\n");
fflush(stdout);
fprintf(stderr, "BEGIN STDERR\n");
fflush(stderr);
for (;;) {
got = read(STDIN_FILENO, buf, sizeof(buf));
if (got < 0)
goto cleanup;
if (got == 0)
break;
if (safewrite(STDOUT_FILENO, buf, got) != got)
goto cleanup;
if (safewrite(STDERR_FILENO, buf, got) != got)
goto cleanup;
}
fprintf(stdout, "END STDOUT\n");
fflush(stdout);
fprintf(stderr, "END STDERR\n");
fflush(stderr);
ret = EXIT_SUCCESS;
cleanup:
VIR_FORCE_FCLOSE(log);
VIR_FREE(newenv);
return ret;
}
#else
int
main(void)
{
return EXIT_AM_SKIP;
}
#endif
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