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https://github.com/freebsd/freebsd-src
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fileargs: add tests
This commit is contained in:
Mariusz Zaborski
parent
6685e259e3
commit
faaf43b2a7
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@ -21,6 +21,9 @@ LIBADD= nv
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CFLAGS+=-I${.CURDIR}
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HAS_TESTS=
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SUBDIR.${MK_TESTS}+= tests
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MAN+= cap_fileargs.3
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MLINKS+=cap_fileargs.3 libcap_fileargs.3
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16
lib/libcasper/services/cap_fileargs/tests/Makefile
Normal file
16
lib/libcasper/services/cap_fileargs/tests/Makefile
Normal file
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@ -0,0 +1,16 @@
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# $FreeBSD$
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.include <src.opts.mk>
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ATF_TESTS_C= fileargs_test
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.if ${MK_CASPER} != "no"
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LIBADD+= casper
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LIBADD+= cap_fileargs
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CFLAGS+=-DWITH_CASPER
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.endif
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LIBADD+= nv
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WARNS?= 3
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.include <bsd.test.mk>
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606
lib/libcasper/services/cap_fileargs/tests/fileargs_test.c
Normal file
606
lib/libcasper/services/cap_fileargs/tests/fileargs_test.c
Normal file
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@ -0,0 +1,606 @@
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/*-
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* Copyright (c) 2021 Mariusz Zaborski <oshogbo@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/capsicum.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <atf-c.h>
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#include <libcasper.h>
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#include <casper/cap_fileargs.h>
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#define MAX_FILES 200
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static char *files[MAX_FILES];
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static int fds[MAX_FILES];
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#define TEST_FILE "/etc/passwd"
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static void
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prepare_files(size_t num, bool create)
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{
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const char template[] = "testsfiles.XXXXXXXX";
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size_t i;
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for (i = 0; i < num; i++) {
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files[i] = calloc(1, sizeof(template));
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ATF_REQUIRE(files[i] != NULL);
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strncpy(files[i], template, sizeof(template) - 1);
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if (create) {
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fds[i] = mkstemp(files[i]);
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ATF_REQUIRE(fds[i] >= 0);
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} else {
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fds[i] = -1;
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ATF_REQUIRE(mktemp(files[i]) != NULL);
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}
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}
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}
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static void
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clear_files(void)
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{
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size_t i;
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for (i = 0; files[i] != NULL; i++) {
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unlink(files[i]);
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free(files[i]);
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if (fds[i] != -1)
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close(fds[i]);
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}
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}
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static int
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test_file_open(fileargs_t *fa, const char *file, int *fdp)
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{
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int fd;
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fd = fileargs_open(fa, file);
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if (fd < 0)
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return (errno);
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if (fdp != NULL) {
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*fdp = fd;
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}
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return (0);
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}
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static int
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test_file_fopen(fileargs_t *fa, const char *file, const char *mode,
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FILE **retfile)
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{
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FILE *pfile;
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pfile = fileargs_fopen(fa, file, mode);
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if (pfile == NULL)
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return (errno);
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if (retfile != NULL) {
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*retfile = pfile;
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}
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return (0);
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}
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static int
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test_file_lstat(fileargs_t *fa, const char *file)
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{
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struct stat fasb, origsb;
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bool equals;
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if (fileargs_lstat(fa, file, &fasb) < 0)
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return (errno);
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ATF_REQUIRE(lstat(file, &origsb) == 0);
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equals = true;
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equals &= (origsb.st_dev == fasb.st_dev);
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equals &= (origsb.st_ino == fasb.st_ino);
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equals &= (origsb.st_nlink == fasb.st_nlink);
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equals &= (origsb.st_flags == fasb.st_flags);
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equals &= (memcmp(&origsb.st_ctim, &fasb.st_ctim,
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sizeof(fasb.st_ctim)) == 0);
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equals &= (memcmp(&origsb.st_birthtim, &fasb.st_birthtim,
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sizeof(fasb.st_birthtim)) == 0);
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if (!equals) {
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return (EINVAL);
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}
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return (0);
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}
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static int
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test_file_mode(int fd, int mode)
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{
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int flags;
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flags = fcntl(fd, F_GETFL, 0);
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if (flags < 0)
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return (errno);
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if ((flags & O_ACCMODE) != mode)
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return (errno);
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return (0);
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}
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static bool
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test_file_cap(int fd, cap_rights_t *rights)
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{
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cap_rights_t fdrights;
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ATF_REQUIRE(cap_rights_get(fd, &fdrights) == 0);
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return (cap_rights_contains(&fdrights, rights));
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}
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static int
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test_file_write(int fd)
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{
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char buf;
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buf = 't';
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if (write(fd, &buf, sizeof(buf)) != sizeof(buf)) {
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return (errno);
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}
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return (0);
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}
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static int
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test_file_read(int fd)
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{
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char buf;
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if (read(fd, &buf, sizeof(buf)) < 0) {
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return (errno);
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}
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return (0);
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}
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static int
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test_file_fwrite(FILE *pfile)
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{
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char buf;
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buf = 't';
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if (fwrite(&buf, sizeof(buf), 1, pfile) != sizeof(buf))
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return (errno);
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return (0);
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}
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static int
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test_file_fread(FILE *pfile)
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{
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char buf;
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int ret, serrno;
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errno = 0;
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ret = fread(&buf, sizeof(buf), 1, pfile);
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serrno = errno;
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if (ret < 0) {
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return (serrno);
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} else if (ret == 0 && feof(pfile) == 0) {
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return (serrno != 0 ? serrno : EINVAL);
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}
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return (0);
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}
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ATF_TC_WITH_CLEANUP(fileargs__open_read);
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ATF_TC_HEAD(fileargs__open_read, tc) {}
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ATF_TC_BODY(fileargs__open_read, tc)
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{
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cap_rights_t rights, norights;
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fileargs_t *fa;
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size_t i;
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int fd;
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prepare_files(MAX_FILES, true);
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cap_rights_init(&rights, CAP_READ | CAP_FCNTL);
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cap_rights_init(&norights, CAP_WRITE);
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fa = fileargs_init(MAX_FILES, files, O_RDONLY, 0, &rights,
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FA_OPEN);
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ATF_REQUIRE(fa != NULL);
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for (i = 0; i < MAX_FILES; i++) {
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/* ALLOWED */
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/* We open file twice to check if we can. */
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ATF_REQUIRE(test_file_open(fa, files[i], &fd) == 0);
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ATF_REQUIRE(close(fd) == 0);
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ATF_REQUIRE(test_file_open(fa, files[i], &fd) == 0);
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ATF_REQUIRE(test_file_mode(fd, O_RDONLY) == 0);
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ATF_REQUIRE(test_file_cap(fd, &rights) == true);
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ATF_REQUIRE(test_file_read(fd) == 0);
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/* DISALLOWED */
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ATF_REQUIRE(test_file_lstat(fa, files[i]) == ENOTCAPABLE);
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ATF_REQUIRE(test_file_open(fa, TEST_FILE, NULL) == ENOTCAPABLE);
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ATF_REQUIRE(test_file_cap(fd, &norights) == false);
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ATF_REQUIRE(test_file_write(fd) == ENOTCAPABLE);
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/* CLOSE */
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ATF_REQUIRE(close(fd) == 0);
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}
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}
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ATF_TC_CLEANUP(fileargs__open_read, tc)
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{
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clear_files();
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}
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ATF_TC_WITH_CLEANUP(fileargs__open_write);
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ATF_TC_HEAD(fileargs__open_write, tc) {}
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ATF_TC_BODY(fileargs__open_write, tc)
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{
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cap_rights_t rights, norights;
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fileargs_t *fa;
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size_t i;
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int fd;
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prepare_files(MAX_FILES, true);
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cap_rights_init(&rights, CAP_WRITE | CAP_FCNTL);
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cap_rights_init(&norights, CAP_READ);
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fa = fileargs_init(MAX_FILES, files, O_WRONLY, 0, &rights,
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FA_OPEN);
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ATF_REQUIRE(fa != NULL);
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for (i = 0; i < MAX_FILES; i++) {
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/* ALLOWED */
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/* We open file twice to check if we can. */
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ATF_REQUIRE(test_file_open(fa, files[i], &fd) == 0);
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ATF_REQUIRE(close(fd) == 0);
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ATF_REQUIRE(test_file_open(fa, files[i], &fd) == 0);
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ATF_REQUIRE(test_file_mode(fd, O_WRONLY) == 0);
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ATF_REQUIRE(test_file_cap(fd, &rights) == true);
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ATF_REQUIRE(test_file_write(fd) == 0);
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/* DISALLOWED */
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ATF_REQUIRE(test_file_lstat(fa, files[i]) == ENOTCAPABLE);
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ATF_REQUIRE(test_file_open(fa, TEST_FILE, NULL) == ENOTCAPABLE);
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ATF_REQUIRE(test_file_cap(fd, &norights) == false);
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ATF_REQUIRE(test_file_read(fd) == ENOTCAPABLE);
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/* CLOSE */
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ATF_REQUIRE(close(fd) == 0);
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}
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}
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ATF_TC_CLEANUP(fileargs__open_write, tc)
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{
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clear_files();
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}
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ATF_TC_WITH_CLEANUP(fileargs__open_create);
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ATF_TC_HEAD(fileargs__open_create, tc) {}
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ATF_TC_BODY(fileargs__open_create, tc)
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{
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cap_rights_t rights, norights;
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fileargs_t *fa;
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size_t i;
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int fd;
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prepare_files(MAX_FILES, false);
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cap_rights_init(&rights, CAP_WRITE | CAP_FCNTL | CAP_READ);
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cap_rights_init(&norights, CAP_FCHMOD);
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fa = fileargs_init(MAX_FILES, files, O_RDWR | O_CREAT, 666,
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&rights, FA_OPEN);
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ATF_REQUIRE(fa != NULL);
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for (i = 0; i < MAX_FILES; i++) {
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/* ALLOWED */
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ATF_REQUIRE(test_file_open(fa, files[i], &fd) == 0);
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ATF_REQUIRE(test_file_mode(fd, O_RDWR) == 0);
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ATF_REQUIRE(test_file_cap(fd, &rights) == true);
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ATF_REQUIRE(test_file_write(fd) == 0);
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ATF_REQUIRE(test_file_read(fd) == 0);
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/* DISALLOWED */
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ATF_REQUIRE(test_file_lstat(fa, files[i]) == ENOTCAPABLE);
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ATF_REQUIRE(test_file_open(fa, TEST_FILE, NULL) == ENOTCAPABLE);
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ATF_REQUIRE(test_file_cap(fd, &norights) == false);
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/* CLOSE */
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ATF_REQUIRE(close(fd) == 0);
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}
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}
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ATF_TC_CLEANUP(fileargs__open_create, tc)
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{
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clear_files();
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}
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ATF_TC_WITH_CLEANUP(fileargs__open_with_casper);
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ATF_TC_HEAD(fileargs__open_with_casper, tc) {}
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ATF_TC_BODY(fileargs__open_with_casper, tc)
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{
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cap_channel_t *capcas;
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cap_rights_t rights;
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fileargs_t *fa;
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size_t i;
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int fd;
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prepare_files(MAX_FILES, true);
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capcas = cap_init();
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ATF_REQUIRE(capcas != NULL);
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cap_rights_init(&rights, CAP_READ);
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fa = fileargs_cinit(capcas, MAX_FILES, files, O_RDONLY, 0, &rights,
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FA_OPEN);
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ATF_REQUIRE(fa != NULL);
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for (i = 0; i < MAX_FILES; i++) {
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/* ALLOWED */
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ATF_REQUIRE(test_file_open(fa, files[i], &fd) == 0);
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ATF_REQUIRE(test_file_read(fd) == 0);
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/* CLOSE */
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ATF_REQUIRE(close(fd) == 0);
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}
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}
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ATF_TC_CLEANUP(fileargs__open_with_casper, tc)
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{
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clear_files();
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}
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ATF_TC_WITH_CLEANUP(fileargs__fopen_read);
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ATF_TC_HEAD(fileargs__fopen_read, tc) {}
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ATF_TC_BODY(fileargs__fopen_read, tc)
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{
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cap_rights_t rights, norights;
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fileargs_t *fa;
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size_t i;
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FILE *pfile;
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int fd;
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prepare_files(MAX_FILES, true);
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cap_rights_init(&rights, CAP_READ | CAP_FCNTL);
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cap_rights_init(&norights, CAP_WRITE);
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fa = fileargs_init(MAX_FILES, files, O_RDONLY, 0, &rights,
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FA_OPEN);
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ATF_REQUIRE(fa != NULL);
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for (i = 0; i < MAX_FILES; i++) {
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/* ALLOWED */
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/* We fopen file twice to check if we can. */
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ATF_REQUIRE(test_file_fopen(fa, files[i], "r", &pfile) == 0);
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ATF_REQUIRE(fclose(pfile) == 0);
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ATF_REQUIRE(test_file_fopen(fa, files[i], "r", &pfile) == 0);
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fd = fileno(pfile);
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ATF_REQUIRE(test_file_mode(fd, O_RDONLY) == 0);
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ATF_REQUIRE(test_file_cap(fd, &rights) == true);
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ATF_REQUIRE(test_file_fread(pfile) == 0);
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/* DISALLOWED */
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ATF_REQUIRE(test_file_lstat(fa, files[i]) == ENOTCAPABLE);
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ATF_REQUIRE(test_file_fopen(fa, TEST_FILE, "r", NULL) ==
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ENOTCAPABLE);
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ATF_REQUIRE(test_file_cap(fd, &norights) == false);
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ATF_REQUIRE(test_file_fwrite(pfile) == EBADF);
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/* CLOSE */
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ATF_REQUIRE(fclose(pfile) == 0);
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}
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}
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ATF_TC_CLEANUP(fileargs__fopen_read, tc)
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{
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clear_files();
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}
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ATF_TC_WITH_CLEANUP(fileargs__fopen_write);
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ATF_TC_HEAD(fileargs__fopen_write, tc) {}
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ATF_TC_BODY(fileargs__fopen_write, tc)
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{
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cap_rights_t rights, norights;
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fileargs_t *fa;
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size_t i;
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FILE *pfile;
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int fd;
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prepare_files(MAX_FILES, true);
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cap_rights_init(&rights, CAP_WRITE | CAP_FCNTL);
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cap_rights_init(&norights, CAP_READ);
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fa = fileargs_init(MAX_FILES, files, O_WRONLY, 0, &rights,
|
||||
FA_OPEN);
|
||||
ATF_REQUIRE(fa != NULL);
|
||||
|
||||
for (i = 0; i < MAX_FILES; i++) {
|
||||
/* ALLOWED */
|
||||
/* We fopen file twice to check if we can. */
|
||||
ATF_REQUIRE(test_file_fopen(fa, files[i], "w", &pfile) == 0);
|
||||
ATF_REQUIRE(fclose(pfile) == 0);
|
||||
|
||||
ATF_REQUIRE(test_file_fopen(fa, files[i], "w", &pfile) == 0);
|
||||
fd = fileno(pfile);
|
||||
ATF_REQUIRE(test_file_mode(fd, O_WRONLY) == 0);
|
||||
ATF_REQUIRE(test_file_cap(fd, &rights) == true);
|
||||
ATF_REQUIRE(test_file_fwrite(pfile) == 0);
|
||||
|
||||
/* DISALLOWED */
|
||||
ATF_REQUIRE(test_file_lstat(fa, files[i]) == ENOTCAPABLE);
|
||||
ATF_REQUIRE(test_file_fopen(fa, TEST_FILE, "w", NULL) ==
|
||||
ENOTCAPABLE);
|
||||
ATF_REQUIRE(test_file_cap(fd, &norights) == false);
|
||||
ATF_REQUIRE(test_file_fread(pfile) == EBADF);
|
||||
|
||||
/* CLOSE */
|
||||
ATF_REQUIRE(fclose(pfile) == 0);
|
||||
}
|
||||
}
|
||||
ATF_TC_CLEANUP(fileargs__fopen_write, tc)
|
||||
{
|
||||
clear_files();
|
||||
}
|
||||
|
||||
ATF_TC_WITH_CLEANUP(fileargs__fopen_create);
|
||||
ATF_TC_HEAD(fileargs__fopen_create, tc) {}
|
||||
ATF_TC_BODY(fileargs__fopen_create, tc)
|
||||
{
|
||||
cap_rights_t rights;
|
||||
fileargs_t *fa;
|
||||
size_t i;
|
||||
FILE *pfile;
|
||||
int fd;
|
||||
|
||||
prepare_files(MAX_FILES, false);
|
||||
|
||||
cap_rights_init(&rights, CAP_READ | CAP_WRITE | CAP_FCNTL);
|
||||
fa = fileargs_init(MAX_FILES, files, O_RDWR | O_CREAT, 0, &rights,
|
||||
FA_OPEN);
|
||||
ATF_REQUIRE(fa != NULL);
|
||||
|
||||
for (i = 0; i < MAX_FILES; i++) {
|
||||
/* ALLOWED */
|
||||
/* We fopen file twice to check if we can. */
|
||||
ATF_REQUIRE(test_file_fopen(fa, files[i], "w+", &pfile) == 0);
|
||||
fd = fileno(pfile);
|
||||
ATF_REQUIRE(test_file_mode(fd, O_RDWR) == 0);
|
||||
ATF_REQUIRE(test_file_cap(fd, &rights) == true);
|
||||
ATF_REQUIRE(test_file_fwrite(pfile) == 0);
|
||||
ATF_REQUIRE(test_file_fread(pfile) == 0);
|
||||
|
||||
/* DISALLOWED */
|
||||
ATF_REQUIRE(test_file_lstat(fa, files[i]) == ENOTCAPABLE);
|
||||
ATF_REQUIRE(test_file_fopen(fa, TEST_FILE, "w+", NULL) ==
|
||||
ENOTCAPABLE);
|
||||
|
||||
/* CLOSE */
|
||||
ATF_REQUIRE(fclose(pfile) == 0);
|
||||
}
|
||||
}
|
||||
ATF_TC_CLEANUP(fileargs__fopen_create, tc)
|
||||
{
|
||||
clear_files();
|
||||
}
|
||||
|
||||
ATF_TC_WITH_CLEANUP(fileargs__lstat);
|
||||
ATF_TC_HEAD(fileargs__lstat, tc) {}
|
||||
ATF_TC_BODY(fileargs__lstat, tc)
|
||||
{
|
||||
fileargs_t *fa;
|
||||
size_t i;
|
||||
int fd;
|
||||
|
||||
prepare_files(MAX_FILES, true);
|
||||
|
||||
fa = fileargs_init(MAX_FILES, files, 0, 0, NULL, FA_LSTAT);
|
||||
ATF_REQUIRE(fa != NULL);
|
||||
|
||||
for (i = 0; i < MAX_FILES; i++) {
|
||||
/* ALLOWED */
|
||||
ATF_REQUIRE(test_file_lstat(fa, files[i]) == 0);
|
||||
|
||||
/* DISALLOWED */
|
||||
ATF_REQUIRE(test_file_open(fa, files[i], &fd) == ENOTCAPABLE);
|
||||
ATF_REQUIRE(test_file_lstat(fa, TEST_FILE) == ENOTCAPABLE);
|
||||
ATF_REQUIRE(test_file_open(fa, TEST_FILE, &fd) == ENOTCAPABLE);
|
||||
}
|
||||
}
|
||||
ATF_TC_CLEANUP(fileargs__lstat, tc)
|
||||
{
|
||||
clear_files();
|
||||
}
|
||||
|
||||
ATF_TC_WITH_CLEANUP(fileargs__open_lstat);
|
||||
ATF_TC_HEAD(fileargs__open_lstat, tc) {}
|
||||
ATF_TC_BODY(fileargs__open_lstat, tc)
|
||||
{
|
||||
cap_rights_t rights, norights;
|
||||
fileargs_t *fa;
|
||||
size_t i;
|
||||
int fd;
|
||||
|
||||
prepare_files(MAX_FILES, true);
|
||||
|
||||
cap_rights_init(&rights, CAP_READ | CAP_FCNTL);
|
||||
cap_rights_init(&norights, CAP_WRITE);
|
||||
fa = fileargs_init(MAX_FILES, files, O_RDONLY, 0, &rights,
|
||||
FA_OPEN | FA_LSTAT);
|
||||
ATF_REQUIRE(fa != NULL);
|
||||
|
||||
for (i = 0; i < MAX_FILES; i++) {
|
||||
/* ALLOWED */
|
||||
/* We open file twice to check if we can. */
|
||||
ATF_REQUIRE(test_file_lstat(fa, files[i]) == 0);
|
||||
ATF_REQUIRE(test_file_open(fa, files[i], &fd) == 0);
|
||||
ATF_REQUIRE(close(fd) == 0);
|
||||
|
||||
ATF_REQUIRE(test_file_open(fa, files[i], &fd) == 0);
|
||||
ATF_REQUIRE(test_file_lstat(fa, files[i]) == 0);
|
||||
ATF_REQUIRE(test_file_mode(fd, O_RDONLY) == 0);
|
||||
ATF_REQUIRE(test_file_cap(fd, &rights) == true);
|
||||
ATF_REQUIRE(test_file_read(fd) == 0);
|
||||
|
||||
/* DISALLOWED */
|
||||
ATF_REQUIRE(test_file_open(fa, TEST_FILE, NULL) == ENOTCAPABLE);
|
||||
ATF_REQUIRE(test_file_cap(fd, &norights) == false);
|
||||
ATF_REQUIRE(test_file_write(fd) == ENOTCAPABLE);
|
||||
|
||||
/* CLOSE */
|
||||
ATF_REQUIRE(close(fd) == 0);
|
||||
}
|
||||
}
|
||||
ATF_TC_CLEANUP(fileargs__open_lstat, tc)
|
||||
{
|
||||
clear_files();
|
||||
}
|
||||
|
||||
ATF_TP_ADD_TCS(tp)
|
||||
{
|
||||
|
||||
ATF_TP_ADD_TC(tp, fileargs__open_create);
|
||||
ATF_TP_ADD_TC(tp, fileargs__open_read);
|
||||
ATF_TP_ADD_TC(tp, fileargs__open_write);
|
||||
ATF_TP_ADD_TC(tp, fileargs__open_with_casper);
|
||||
|
||||
ATF_TP_ADD_TC(tp, fileargs__fopen_create);
|
||||
ATF_TP_ADD_TC(tp, fileargs__fopen_read);
|
||||
ATF_TP_ADD_TC(tp, fileargs__fopen_write);
|
||||
|
||||
ATF_TP_ADD_TC(tp, fileargs__lstat);
|
||||
|
||||
ATF_TP_ADD_TC(tp, fileargs__open_lstat);
|
||||
|
||||
return (atf_no_error());
|
||||
}
|
||||
Loading…
Reference in a new issue