121 lines
2.6 KiB
C
121 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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*/
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/*
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* DESCRIPTION
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* 1) The calling process does not have write permission on the message
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* queue, so msgsnd(2) fails and sets errno to EACCES.
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* 2) msgsnd(2) fails and sets errno to EFAULT if the message buffer address
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* is invalid.
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* 3) msgsnd(2) fails and sets errno to EINVAL if the queue ID is invalid.
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* 4) msgsnd(2) fails and sets errno to EINVAL if the message type is not
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* positive (0).
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* 5) msgsnd(2) fails and sets errno to EINVAL if the message type is not
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* positive (>0).
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* 6) msgsnd(2) fails and sets errno to EINVAL if the message size is less
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* than zero.
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*/
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <pwd.h>
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#include "tst_test.h"
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#include "tst_safe_sysv_ipc.h"
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#include "libnewipc.h"
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static key_t msgkey;
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static int queue_id = -1;
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static int bad_id = -1;
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static struct passwd *pw;
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static struct buf {
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long type;
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char text[MSGSIZE];
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} snd_buf[] = {
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{1, "hello"},
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{0, "hello"},
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{-1, "hello"}
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};
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static struct tcase {
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int *id;
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struct buf *buffer;
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int msgsz;
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int exp_err;
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/*1: nobody expected 0: root expected */
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int exp_user;
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} tcases[] = {
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{&queue_id, &snd_buf[0], MSGSIZE, EACCES, 1},
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{&queue_id, NULL, MSGSIZE, EFAULT, 0},
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{&bad_id, &snd_buf[0], MSGSIZE, EINVAL, 0},
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{&queue_id, &snd_buf[1], MSGSIZE, EINVAL, 0},
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{&queue_id, &snd_buf[2], MSGSIZE, EINVAL, 0},
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{&queue_id, &snd_buf[0], -1, EINVAL, 0}
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};
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static void verify_msgsnd(struct tcase *tc)
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{
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TEST(msgsnd(*tc->id, tc->buffer, tc->msgsz, 0));
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if (TST_RET != -1) {
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tst_res(TFAIL, "smgsnd() succeeded unexpectedly");
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return;
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}
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if (TST_ERR == tc->exp_err) {
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tst_res(TPASS | TTERRNO, "msgsnd() failed as expected");
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} else {
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tst_res(TFAIL | TTERRNO, "msgsnd() failed unexpectedly,"
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" expected %s", tst_strerrno(tc->exp_err));
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}
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}
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static void do_test(unsigned int n)
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{
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pid_t pid;
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struct tcase *tc = &tcases[n];
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if (tc->exp_user == 0) {
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verify_msgsnd(tc);
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return;
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}
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pid = SAFE_FORK();
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if (pid) {
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tst_reap_children();
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} else {
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SAFE_SETUID(pw->pw_uid);
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verify_msgsnd(tc);
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}
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}
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static void setup(void)
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{
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msgkey = GETIPCKEY();
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queue_id = SAFE_MSGGET(msgkey, IPC_CREAT | IPC_EXCL | MSG_RW);
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pw = SAFE_GETPWNAM("nobody");
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}
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static void cleanup(void)
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{
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if (queue_id != -1)
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SAFE_MSGCTL(queue_id, IPC_RMID, NULL);
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}
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static struct tst_test test = {
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.needs_tmpdir = 1,
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.needs_root = 1,
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.forks_child = 1,
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.tcnt = ARRAY_SIZE(tcases),
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.setup = setup,
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.cleanup = cleanup,
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.test = do_test
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};
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