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/*
* fdflag test suite.
*
* The canonical version of this file is maintained in the rra-c-util package,
* which can be found at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
*
* Written by Russ Allbery <eagle@eyrie.org>
* Copyright 2021 Russ Allbery <eagle@eyrie.org>
* Copyright 2008-2009
* The Board of Trustees of the Leland Stanford Junior University
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* SPDX-License-Identifier: MIT
*/
#include <config.h>
#include <portable/socket.h>
#include <portable/system.h>
#include <errno.h>
#include <signal.h>
#include <sys/wait.h>
#include <tests/tap/basic.h>
#include <util/fdflag.h>
int
main(void)
{
int master, data, out1, out2;
socklen_t size;
ssize_t status;
struct sockaddr_in sin;
pid_t child;
char buffer[] = "D";
plan(8);
/* Parent will create the socket first to get the port number. */
memset(&sin, '\0', sizeof(sin));
sin.sin_family = AF_INET;
inet_pton(AF_INET, "127.0.0.1", &sin.sin_addr);
master = socket(AF_INET, SOCK_STREAM, 0);
if (master == -1)
sysbail("socket creation failed");
if (bind(master, (struct sockaddr *) &sin, sizeof(sin)) < 0)
sysbail("bind failed");
size = sizeof(sin);
if (getsockname(master, (struct sockaddr *) &sin, &size) < 0)
sysbail("getsockname failed");
if (listen(master, 1) < 0)
sysbail("listen failed");
/* Duplicate standard output to test close-on-exec. */
out1 = 8;
out2 = 9;
if (dup2(fileno(stdout), out1) < 0)
sysbail("cannot dup stdout to fd 8");
if (dup2(fileno(stdout), out2) < 0)
sysbail("cannot dup stdout to fd 9");
ok(fdflag_close_exec(out1, true), "set fd 8 to close-on-exec");
ok(fdflag_close_exec(out2, true), "set fd 9 to close-on-exec");
ok(fdflag_close_exec(out2, false), "set fd 9 back to regular");
/*
* Fork, child closes the open socket and then tries to connect, parent
* calls listen() and accept() on it. Parent will then set the socket
* non-blocking and try to read from it to see what happens, then write to
* the socket and close it, triggering the child close and exit.
*
* Before the child exits, it will exec a shell that will print "no" to
* the duplicate of stdout that the parent created and then the ok to
* regular stdout.
*/
child = fork();
if (child < 0) {
sysbail("fork failed");
} else if (child != 0) {
size = sizeof(sin);
data = accept(master, (struct sockaddr *) &sin, &size);
close(master);
if (data < 0)
sysbail("accept failed");
ok(fdflag_nonblocking(data, true), "set socket non-blocking");
status = read(data, buffer, sizeof(buffer));
is_int(-1, status, "got -1 from non-blocking read");
is_int(EAGAIN, errno, "...with EAGAIN errno");
if (write(data, buffer, sizeof(buffer)) < (ssize_t) sizeof(buffer))
sysbail("write failed");
close(data);
testnum += 2;
} else {
data = socket(AF_INET, SOCK_STREAM, 0);
if (data < 0) {
kill(child, SIGTERM);
sysbail("child socket failed");
}
if (connect(data, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
kill(child, SIGTERM);
sysbail("child connect failed");
}
if (read(data, buffer, sizeof(buffer)) < (ssize_t) sizeof(buffer)) {
kill(child, SIGTERM);
sysbail("read failed");
}
fclose(stderr);
/* For some reason, echo doesn't work on Solaris 11 but printf does. */
execlp("sh", "sh", "-c",
"printf 'not ' >&8; printf 'ok 7\n'; printf 'ok 8\n' >&9",
(char *) 0);
sysbail("exec failed");
}
waitpid(child, NULL, 0);
exit(0);
}
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