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closefrom_test: Convert to atf-c(3)
Reviewed by: ngie, markj Differential Revision: https://reviews.freebsd.org/D52800
This commit is contained in:
John Baldwin
parent
d5d47e1e67
commit
2fbb6e213a
2 changed files with 236 additions and 256 deletions
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@ -3,7 +3,7 @@ TESTSDIR= ${TESTSBASE}/sys/file
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BINDIR= ${TESTSDIR}
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ATF_TESTS_C+= path_test
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TAP_TESTS_C+= closefrom_test
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ATF_TESTS_C+= closefrom_test
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TAP_TESTS_C+= dup_test
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ATF_TESTS_C+= fcntlflags_test
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TAP_TESTS_SH+= flock_test
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@ -25,13 +25,13 @@
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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/*
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* Regression tests for the closefrom(2) system call.
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*/
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#include <sys/param.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/user.h>
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#include <sys/wait.h>
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#include <errno.h>
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@ -44,66 +44,56 @@
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#include <string.h>
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#include <unistd.h>
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struct shared_info {
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int failed;
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char tag[64];
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char message[0];
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};
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#include <atf-c.h>
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static int test = 1;
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static char *shared_page;
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static void
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ok(const char *descr)
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{
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printf("ok %d - %s\n", test, descr);
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test++;
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}
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static void
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fail(const char *descr, const char *fmt, ...)
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/*
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* A variant of ATF_REQUIRE that is suitable for use in child
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* processes. Since these tests close stderr, errors are reported to
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* a shared page of memory checked by the parent process.
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*/
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#define CHILD_REQUIRE(exp) do { \
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if (!(exp)) \
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child_fail_require(__FILE__, __LINE__, \
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#exp " not met"); \
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} while (0)
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static __dead2 __printflike(3, 4) void
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child_fail_require(const char *file, int line, const char *fmt, ...)
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{
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FILE *fp;
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va_list ap;
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printf("not ok %d - %s", test, descr);
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test++;
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if (fmt) {
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va_start(ap, fmt);
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printf(" # ");
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vprintf(fmt, ap);
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va_end(ap);
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}
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printf("\n");
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exit(1);
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}
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fp = fmemopen(shared_page, PAGE_SIZE - 1, "w");
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if (fp == NULL)
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exit(1);
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#define fail_err(descr) fail((descr), "%s", strerror(errno))
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fprintf(fp, "%s:%d: ", file, line);
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va_start(ap, fmt);
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vfprintf(fp, fmt, ap);
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va_end(ap);
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fclose(fp);
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static void
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cok(struct shared_info *info, const char *descr)
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{
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info->failed = 0;
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strlcpy(info->tag, descr, sizeof(info->tag));
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exit(0);
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}
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static void
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cfail(struct shared_info *info, const char *descr, const char *fmt, ...)
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static pid_t
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child_fork(void)
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{
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va_list ap;
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info->failed = 1;
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strlcpy(info->tag, descr, sizeof(info->tag));
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if (fmt) {
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va_start(ap, fmt);
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vsprintf(info->message, fmt, ap);
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va_end(ap);
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}
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exit(0);
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shared_page = mmap(NULL, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_ANON |
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MAP_SHARED, -1, 0);
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ATF_REQUIRE_MSG(shared_page != MAP_FAILED, "mmap: %s", strerror(errno));
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return (atf_utils_fork());
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}
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#define cfail_err(info, descr) cfail((info), (descr), "%s", strerror(errno))
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static void
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child_wait(pid_t pid)
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{
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atf_utils_wait(pid, 0, "", "");
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if (shared_page[0] != '\0')
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atf_tc_fail("%s", shared_page);
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}
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/*
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* Use kinfo_getfile() to fetch the list of file descriptors and figure out
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@ -116,9 +106,8 @@ highest_fd(void)
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int cnt, i, highest;
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kif = kinfo_getfile(getpid(), &cnt);
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if (kif == NULL)
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fail_err("kinfo_getfile");
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highest = INT_MIN;
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ATF_REQUIRE_MSG(kif != NULL, "kinfo_getfile: %s", strerror(errno));
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highest = -1;
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for (i = 0; i < cnt; i++)
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if (kif[i].kf_fd > highest)
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highest = kif[i].kf_fd;
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@ -132,262 +121,253 @@ devnull(void)
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int fd;
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fd = open(_PATH_DEVNULL, O_RDONLY);
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if (fd < 0)
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fail_err("open(\" "_PATH_DEVNULL" \")");
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ATF_REQUIRE_MSG(fd != -1, "open(\" "_PATH_DEVNULL" \"): %s",
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strerror(errno));
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return (fd);
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}
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int
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main(void)
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ATF_TC_WITHOUT_HEAD(closefrom_simple);
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ATF_TC_BODY(closefrom_simple, tc)
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{
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struct shared_info *info;
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pid_t pid;
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int fd, flags, i, start;
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printf("1..22\n");
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int fd, start;
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/* We'd better start up with fd's 0, 1, and 2 open. */
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start = devnull();
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if (start < 3)
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fail("open", "bad descriptor %d", start);
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ok("open");
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start = highest_fd();
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ATF_REQUIRE(start >= 2);
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fd = devnull();
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ATF_REQUIRE(fd > start);
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/* Make sure highest_fd() works. */
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fd = highest_fd();
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if (start != fd)
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fail("highest_fd", "bad descriptor %d != %d", start, fd);
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ok("highest_fd");
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ATF_REQUIRE_INTEQ(fd, highest_fd());
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/* Try to use closefrom() for just closing fd 3. */
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closefrom(start);
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fd = highest_fd();
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if (fd != start - 1)
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fail("closefrom", "highest fd %d", fd);
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ok("closefrom");
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/* Try to use closefrom() to close just the new fd. */
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closefrom(fd);
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ATF_REQUIRE_INTEQ(start, highest_fd());
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}
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ATF_TC_WITHOUT_HEAD(closefrom_with_holes);
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ATF_TC_BODY(closefrom_with_holes, tc)
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{
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int i, start;
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start = highest_fd();
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/* Eat up 16 descriptors. */
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for (i = 0; i < 16; i++)
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(void)devnull();
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fd = highest_fd();
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if (fd != start + 15)
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fail("open 16", "highest fd %d", fd);
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ok("open 16");
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ATF_REQUIRE_INTEQ(start + 16, highest_fd());
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/* Close half of them. */
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closefrom(11);
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fd = highest_fd();
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if (fd != 10)
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fail("closefrom", "highest fd %d", fd);
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ok("closefrom");
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closefrom(start + 9);
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ATF_REQUIRE_INTEQ(start + 8, highest_fd());
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/* Explicitly close descriptors 6 and 8 to create holes. */
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if (close(6) < 0 || close(8) < 0)
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fail_err("close2 ");
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ok("close 2");
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/* Explicitly close two descriptors to create holes. */
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ATF_REQUIRE_MSG(close(start + 3) == 0, "close(start + 3): %s",
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strerror(errno));
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ATF_REQUIRE_MSG(close(start + 5) == 0, "close(start + 5): %s",
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strerror(errno));
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/* Verify that close on 6 and 8 fails with EBADF. */
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if (close(6) == 0)
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fail("close(6)", "did not fail");
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if (errno != EBADF)
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fail_err("close(6)");
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ok("close(6)");
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if (close(8) == 0)
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fail("close(8)", "did not fail");
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if (errno != EBADF)
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fail_err("close(8)");
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ok("close(8)");
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/* Verify that close on the closed descriptors fails with EBADF. */
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ATF_REQUIRE_ERRNO(EBADF, close(start + 3) == -1);
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ATF_REQUIRE_ERRNO(EBADF, close(start + 5) == -1);
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/* Close from 4 on. */
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closefrom(4);
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fd = highest_fd();
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if (fd != 3)
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fail("closefrom", "highest fd %d", fd);
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ok("closefrom");
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/* Close most remaining descriptors. */
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closefrom(start + 2);
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ATF_REQUIRE_INTEQ(start + 1, highest_fd());
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}
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/* Allocate a small SHM region for IPC with our child. */
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info = mmap(NULL, getpagesize(), PROT_READ | PROT_WRITE, MAP_ANON |
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MAP_SHARED, -1, 0);
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if (info == MAP_FAILED)
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fail_err("mmap");
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ok("mmap");
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ATF_TC_WITHOUT_HEAD(closefrom_zero);
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ATF_TC_BODY(closefrom_zero, tc)
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{
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pid_t pid;
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int fd;
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/* Fork a child process to test closefrom(0). */
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pid = fork();
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if (pid < 0)
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fail_err("fork");
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/* Ensure standard descriptors are open. */
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ATF_REQUIRE(highest_fd() >= 2);
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pid = child_fork();
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if (pid == 0) {
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/* Child. */
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closefrom(0);
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fd = highest_fd();
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if (fd >= 0)
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cfail(info, "closefrom(0)", "highest fd %d", fd);
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cok(info, "closefrom(0)");
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CHILD_REQUIRE(fd == -1);
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exit(0);
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}
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if (wait(NULL) < 0)
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fail_err("wait");
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if (info->failed)
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fail(info->tag, "%s", info->message);
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ok(info->tag);
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/* Fork a child process to test closefrom(-1). */
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pid = fork();
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if (pid < 0)
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fail_err("fork");
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child_wait(pid);
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}
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ATF_TC_WITHOUT_HEAD(closefrom_negative_one);
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ATF_TC_BODY(closefrom_negative_one, tc)
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{
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pid_t pid;
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int fd;
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/* Ensure standard descriptors are open. */
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ATF_REQUIRE(highest_fd() >= 2);
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pid = child_fork();
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if (pid == 0) {
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/* Child. */
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closefrom(-1);
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fd = highest_fd();
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if (fd >= 0)
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cfail(info, "closefrom(-1)", "highest fd %d", fd);
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cok(info, "closefrom(-1)");
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CHILD_REQUIRE(fd == -1);
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exit(0);
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}
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if (wait(NULL) < 0)
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fail_err("wait");
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if (info->failed)
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fail(info->tag, "%s", info->message);
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ok(info->tag);
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/* Dup stdout to 6. */
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if (dup2(1, 6) < 0)
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fail_err("dup2");
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fd = highest_fd();
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if (fd != 6)
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fail("dup2", "highest fd %d", fd);
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ok("dup2");
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child_wait(pid);
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}
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ATF_TC_WITHOUT_HEAD(closefrom_in_holes);
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ATF_TC_BODY(closefrom_in_holes, tc)
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{
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int start;
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start = highest_fd();
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ATF_REQUIRE(start >= 2);
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/* Dup stdout to a higher fd. */
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ATF_REQUIRE_INTEQ(start + 4, dup2(1, start + 4));
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ATF_REQUIRE_INTEQ(start + 4, highest_fd());
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/* Do a closefrom() starting in a hole. */
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closefrom(4);
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fd = highest_fd();
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if (fd != 3)
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fail("closefrom", "highest fd %d", fd);
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ok("closefrom");
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closefrom(start + 2);
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ATF_REQUIRE_INTEQ(start, highest_fd());
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/* Do a closefrom() beyond our highest open fd. */
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closefrom(32);
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fd = highest_fd();
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if (fd != 3)
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fail("closefrom", "highest fd %d", fd);
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ok("closefrom");
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closefrom(start + 32);
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ATF_REQUIRE_INTEQ(start, highest_fd());
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}
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/* Chew up another 8 fd */
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ATF_TC_WITHOUT_HEAD(closerange_basic);
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ATF_TC_BODY(closerange_basic, tc)
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{
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struct stat sb;
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int i, start;
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start = highest_fd();
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/* Open 8 file descriptors */
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for (i = 0; i < 8; i++)
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(void)devnull();
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fd = highest_fd();
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start = fd - 7;
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ATF_REQUIRE_INTEQ(start + 8, highest_fd());
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/* close_range() a hole in the middle */
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close_range(start + 3, start + 5, 0);
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for (i = start + 3; i < start + 6; ++i) {
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if (close(i) == 0 || errno != EBADF) {
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--i;
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break;
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}
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}
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if (i != start + 6)
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fail("close_range", "failed to close at %d in %d - %d", i + 1,
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start + 3, start + 6);
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ok("close_range");
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ATF_REQUIRE_INTEQ(0, close_range(start + 3, start + 5, 0));
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for (i = start + 3; i < start + 6; ++i)
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ATF_REQUIRE_ERRNO(EBADF, fstat(i, &sb) == -1);
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/* close_range from the middle of the hole */
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close_range(start + 4, start + 6, 0);
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if ((i = highest_fd()) != fd)
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fail("close_range", "highest fd %d", i);
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ok("close_range");
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ATF_REQUIRE_INTEQ(0, close_range(start + 4, start + 6, 0));
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ATF_REQUIRE_INTEQ(start + 8, highest_fd());
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/* close_range to the end; effectively closefrom(2) */
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close_range(start + 3, ~0L, 0);
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if ((i = highest_fd()) != start + 2)
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fail("close_range", "highest fd %d", i);
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ok("close_range");
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ATF_REQUIRE_INTEQ(0, close_range(start + 3, ~0L, 0));
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ATF_REQUIRE_INTEQ(start + 2, highest_fd());
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/* Now close the rest */
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close_range(start, start + 4, 0);
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fd = highest_fd();
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if (fd != 3)
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fail("close_range", "highest fd %d", fd);
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ok("close_range");
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ATF_REQUIRE_INTEQ(0, close_range(start + 1, start + 4, 0));
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ATF_REQUIRE_INTEQ(start, highest_fd());
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}
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/* Fork a child process to test closefrom(0) twice. */
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pid = fork();
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if (pid < 0)
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fail_err("fork");
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ATF_TC_WITHOUT_HEAD(closefrom_zero_twice);
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ATF_TC_BODY(closefrom_zero_twice, tc)
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{
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pid_t pid;
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int fd;
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/* Ensure standard descriptors are open. */
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ATF_REQUIRE(highest_fd() >= 2);
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pid = child_fork();
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if (pid == 0) {
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/* Child. */
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closefrom(0);
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fd = highest_fd();
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CHILD_REQUIRE(fd == -1);
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closefrom(0);
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cok(info, "closefrom(0)");
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fd = highest_fd();
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CHILD_REQUIRE(fd == -1);
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exit(0);
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}
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if (wait(NULL) < 0)
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fail_err("wait");
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if (info->failed)
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fail(info->tag, "%s", info->message);
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ok(info->tag);
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/* test CLOSE_RANGE_CLOEXEC */
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for (i = 0; i < 8; i++)
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(void)devnull();
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fd = highest_fd();
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start = fd - 8;
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if (close_range(start + 1, start + 4, CLOSE_RANGE_CLOEXEC) < 0)
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fail_err("close_range(..., CLOSE_RANGE_CLOEXEC)");
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flags = fcntl(start, F_GETFD);
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if (flags < 0)
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fail_err("fcntl(.., F_GETFD)");
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if ((flags & FD_CLOEXEC) != 0)
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fail("close_range", "CLOSE_RANGE_CLOEXEC set close-on-exec "
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"when it should not have on fd %d", start);
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for (i = start + 1; i <= start + 4; i++) {
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flags = fcntl(i, F_GETFD);
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if (flags < 0)
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fail_err("fcntl(.., F_GETFD)");
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if ((flags & FD_CLOEXEC) == 0)
|
||||
fail("close_range", "CLOSE_RANGE_CLOEXEC did not set "
|
||||
"close-on-exec on fd %d", i);
|
||||
}
|
||||
for (; i < start + 8; i++) {
|
||||
flags = fcntl(i, F_GETFD);
|
||||
if (flags < 0)
|
||||
fail_err("fcntl(.., F_GETFD)");
|
||||
if ((flags & FD_CLOEXEC) != 0)
|
||||
fail("close_range", "CLOSE_RANGE_CLOEXEC set close-on-exec "
|
||||
"when it should not have on fd %d", i);
|
||||
}
|
||||
if (close_range(start, start + 8, 0) < 0)
|
||||
fail_err("close_range");
|
||||
ok("close_range(..., CLOSE_RANGE_CLOEXEC)");
|
||||
|
||||
/* test CLOSE_RANGE_CLOFORK */
|
||||
for (i = 0; i < 8; i++)
|
||||
(void)devnull();
|
||||
fd = highest_fd();
|
||||
start = fd - 8;
|
||||
if (close_range(start + 1, start + 4, CLOSE_RANGE_CLOFORK) < 0)
|
||||
fail_err("close_range(..., CLOSE_RANGE_CLOFORK)");
|
||||
flags = fcntl(start, F_GETFD);
|
||||
if (flags < 0)
|
||||
fail_err("fcntl(.., F_GETFD)");
|
||||
if ((flags & FD_CLOFORK) != 0)
|
||||
fail("close_range", "CLOSE_RANGE_CLOFORK set close-on-exec "
|
||||
"when it should not have on fd %d", start);
|
||||
for (i = start + 1; i <= start + 4; i++) {
|
||||
flags = fcntl(i, F_GETFD);
|
||||
if (flags < 0)
|
||||
fail_err("fcntl(.., F_GETFD)");
|
||||
if ((flags & FD_CLOFORK) == 0)
|
||||
fail("close_range", "CLOSE_RANGE_CLOFORK did not set "
|
||||
"close-on-exec on fd %d", i);
|
||||
}
|
||||
for (; i < start + 8; i++) {
|
||||
flags = fcntl(i, F_GETFD);
|
||||
if (flags < 0)
|
||||
fail_err("fcntl(.., F_GETFD)");
|
||||
if ((flags & FD_CLOFORK) != 0)
|
||||
fail("close_range", "CLOSE_RANGE_CLOFORK set close-on-exec "
|
||||
"when it should not have on fd %d", i);
|
||||
}
|
||||
if (close_range(start, start + 8, 0) < 0)
|
||||
fail_err("close_range");
|
||||
ok("close_range(..., CLOSE_RANGE_CLOFORK)");
|
||||
|
||||
return (0);
|
||||
child_wait(pid);
|
||||
}
|
||||
|
||||
static void
|
||||
require_fd_flag(int fd, const char *descr, const char *descr2, int flag,
|
||||
bool set)
|
||||
{
|
||||
int flags;
|
||||
|
||||
flags = fcntl(fd, F_GETFD);
|
||||
ATF_REQUIRE_MSG(flags >= 0, "fcntl(.., F_GETFD): %s", strerror(errno));
|
||||
|
||||
if (set) {
|
||||
ATF_REQUIRE_MSG((flags & flag) == flag,
|
||||
"%s did not set %s on fd %d", descr, descr2, fd);
|
||||
} else {
|
||||
ATF_REQUIRE_MSG((flags & flag) == 0,
|
||||
"%s set %s when it should not have on fd %d", descr, descr2,
|
||||
fd);
|
||||
}
|
||||
}
|
||||
|
||||
ATF_TC_WITHOUT_HEAD(closerange_CLOEXEC);
|
||||
ATF_TC_BODY(closerange_CLOEXEC, tc)
|
||||
{
|
||||
int i, start;
|
||||
|
||||
start = highest_fd();
|
||||
ATF_REQUIRE(start >= 2);
|
||||
|
||||
for (i = 0; i < 8; i++)
|
||||
(void)devnull();
|
||||
ATF_REQUIRE_INTEQ(start + 8, highest_fd());
|
||||
|
||||
ATF_REQUIRE_INTEQ(0, close_range(start + 2, start + 5,
|
||||
CLOSE_RANGE_CLOEXEC));
|
||||
for (i = 1; i < 9; i++) {
|
||||
require_fd_flag(start + i, "CLOSE_RANGE_CLOEXEC",
|
||||
"close-on-exec", FD_CLOEXEC, i >= 2 && i <= 5);
|
||||
}
|
||||
ATF_REQUIRE_INTEQ(0, close_range(start + 1, start + 8, 0));
|
||||
}
|
||||
|
||||
ATF_TC_WITHOUT_HEAD(closerange_CLOFORK);
|
||||
ATF_TC_BODY(closerange_CLOFORK, tc)
|
||||
{
|
||||
int i, start;
|
||||
|
||||
start = highest_fd();
|
||||
ATF_REQUIRE(start >= 2);
|
||||
|
||||
for (i = 0; i < 8; i++)
|
||||
(void)devnull();
|
||||
ATF_REQUIRE_INTEQ(start + 8, highest_fd());
|
||||
|
||||
ATF_REQUIRE_INTEQ(0, close_range(start + 2, start + 5,
|
||||
CLOSE_RANGE_CLOFORK));
|
||||
for (i = 1; i < 9; i++) {
|
||||
require_fd_flag(start + i, "CLOSE_RANGE_CLOFORK",
|
||||
"close-on-fork", FD_CLOFORK, i >= 2 && i <= 5);
|
||||
}
|
||||
ATF_REQUIRE_INTEQ(0, close_range(start + 1, start + 8, 0));
|
||||
}
|
||||
|
||||
ATF_TP_ADD_TCS(tp)
|
||||
{
|
||||
ATF_TP_ADD_TC(tp, closefrom_simple);
|
||||
ATF_TP_ADD_TC(tp, closefrom_with_holes);
|
||||
ATF_TP_ADD_TC(tp, closefrom_zero);
|
||||
ATF_TP_ADD_TC(tp, closefrom_negative_one);
|
||||
ATF_TP_ADD_TC(tp, closefrom_in_holes);
|
||||
ATF_TP_ADD_TC(tp, closerange_basic);
|
||||
ATF_TP_ADD_TC(tp, closefrom_zero_twice);
|
||||
ATF_TP_ADD_TC(tp, closerange_CLOEXEC);
|
||||
ATF_TP_ADD_TC(tp, closerange_CLOFORK);
|
||||
|
||||
return (atf_no_error());
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue