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Diffstat (limited to 'tests/sys/fifo/fifo_misc.c')
-rw-r--r-- | tests/sys/fifo/fifo_misc.c | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/tests/sys/fifo/fifo_misc.c b/tests/sys/fifo/fifo_misc.c new file mode 100644 index 0000000..888547e --- /dev/null +++ b/tests/sys/fifo/fifo_misc.c @@ -0,0 +1,335 @@ +/*- + * Copyright (c) 2005 Robert N. M. Watson + * Copyright (c) 2012 Jilles Tjoelker + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <sys/types.h> +#include <sys/event.h> +#include <sys/filio.h> +#include <sys/stat.h> +#include <sys/time.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +/* + * Regression test for piddling details of fifos. + */ + +/* + * All activity occurs within a temporary directory created early in the + * test. + */ +static char temp_dir[PATH_MAX]; + +static void __unused +atexit_temp_dir(void) +{ + + rmdir(temp_dir); +} + +static void +makefifo(const char *fifoname, const char *testname) +{ + + if (mkfifo(fifoname, 0700) < 0) + err(-1, "%s: makefifo: mkfifo: %s", testname, fifoname); +} + +static void +cleanfifo(const char *fifoname, int fd1, int fd2) +{ + + if (fd1 != -1) + close(fd1); + if (fd2 != -1) + close(fd2); + (void)unlink(fifoname); +} + +static int +openfifo(const char *fifoname, int *reader_fdp, int *writer_fdp) +{ + int error, fd1, fd2; + + fd1 = open(fifoname, O_RDONLY | O_NONBLOCK); + if (fd1 < 0) + return (-1); + fd2 = open(fifoname, O_WRONLY | O_NONBLOCK); + if (fd2 < 0) { + error = errno; + close(fd1); + errno = error; + return (-1); + } + *reader_fdp = fd1; + *writer_fdp = fd2; + + return (0); +} + +/* + * POSIX does not allow lseek(2) on fifos, so we expect ESPIPE as a result. + */ +static void +test_lseek(void) +{ + int reader_fd, writer_fd; + + makefifo("testfifo", __func__); + + if (openfifo("testfifo", &reader_fd, &writer_fd) < 0) { + warn("%s: openfifo", __func__); + cleanfifo("testfifo", -1, -1); + exit(-1); + } + + if (lseek(reader_fd, 1, SEEK_CUR) >= 0) { + warnx("%s: lseek succeeded instead of returning ESPIPE", + __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + if (errno != ESPIPE) { + warn("%s: lseek returned instead of ESPIPE", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + cleanfifo("testfifo", reader_fd, writer_fd); +} + +/* + * truncate(2) on FIFO should silently return success. + */ +static void +test_truncate(void) +{ + + makefifo("testfifo", __func__); + + if (truncate("testfifo", 1024) != 0) { + warn("%s: truncate", __func__); + cleanfifo("testfifo", -1, -1); + exit(-1); + } + + cleanfifo("testfifo", -1, -1); +} + +static int +test_ioctl_setclearflag(int fd, int flag, const char *testname, + const char *fdname, const char *flagname) +{ + int i; + + i = 1; + if (ioctl(fd, flag, &i) < 0) { + warn("%s:%s: ioctl(%s, %s, 1)", testname, __func__, fdname, + flagname); + cleanfifo("testfifo", -1, -1); + exit(-1); + } + + i = 0; + if (ioctl(fd, flag, &i) < 0) { + warn("%s:%s: ioctl(%s, %s, 0)", testname, __func__, fdname, + flagname); + cleanfifo("testfifo", -1, -1); + exit(-1); + } + + return (0); +} + +/* + * Test that various ioctls can be issued against the file descriptor. We + * don't currently test the semantics of these changes here. + */ +static void +test_ioctl(void) +{ + int reader_fd, writer_fd; + + makefifo("testfifo", __func__); + + if (openfifo("testfifo", &reader_fd, &writer_fd) < 0) { + warn("%s: openfifo", __func__); + cleanfifo("testfifo", -1, -1); + exit(-1); + } + + /* + * Set and remove the non-blocking I/O flag. + */ + if (test_ioctl_setclearflag(reader_fd, FIONBIO, __func__, + "reader_fd", "FIONBIO") < 0) { + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if (test_ioctl_setclearflag(writer_fd, FIONBIO, __func__, + "writer_fd", "FIONBIO") < 0) { + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + /* + * Set and remove the async I/O flag. + */ + if (test_ioctl_setclearflag(reader_fd, FIOASYNC, __func__, + "reader_fd", "FIOASYNC") < 0) { + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if (test_ioctl_setclearflag(writer_fd, FIOASYNC, __func__, + "writer_fd", "FIONASYNC") < 0) { + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + cleanfifo("testfifo", reader_fd, writer_fd); +} + +/* + * fchmod(2)/fchown(2) on FIFO should work. + */ +static void +test_chmodchown(void) +{ + struct stat sb; + int reader_fd, writer_fd; + uid_t u; + gid_t g; + + makefifo("testfifo", __func__); + + if (openfifo("testfifo", &reader_fd, &writer_fd) < 0) { + warn("%s: openfifo", __func__); + cleanfifo("testfifo", -1, -1); + exit(-1); + } + + if (fchmod(reader_fd, 0666) != 0) { + warn("%s: fchmod", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if (stat("testfifo", &sb) != 0) { + warn("%s: stat", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if ((sb.st_mode & 0777) != 0666) { + warnx("%s: stat chmod result", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if (fstat(writer_fd, &sb) != 0) { + warn("%s: fstat", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if ((sb.st_mode & 0777) != 0666) { + warnx("%s: fstat chmod result", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if (fchown(reader_fd, -1, -1) != 0) { + warn("%s: fchown 1", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + u = geteuid(); + if (u == 0) + u = 1; + g = getegid(); + if (fchown(reader_fd, u, g) != 0) { + warn("%s: fchown 2", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + if (stat("testfifo", &sb) != 0) { + warn("%s: stat", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if (sb.st_uid != u || sb.st_gid != g) { + warnx("%s: stat chown result", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if (fstat(writer_fd, &sb) != 0) { + warn("%s: fstat", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + if (sb.st_uid != u || sb.st_gid != g) { + warnx("%s: fstat chown result", __func__); + cleanfifo("testfifo", reader_fd, writer_fd); + exit(-1); + } + + cleanfifo("testfifo", -1, -1); +} + +int +main(void) +{ + + strcpy(temp_dir, "fifo_misc.XXXXXXXXXXX"); + if (mkdtemp(temp_dir) == NULL) + err(-1, "mkdtemp"); + atexit(atexit_temp_dir); + + if (chdir(temp_dir) < 0) + err(-1, "chdir %s", temp_dir); + + test_lseek(); + test_truncate(); + test_ioctl(); + test_chmodchown(); + + return (0); +} |