Author: jilles
Date: Sat May 11 22:13:24 2013
New Revision: 250530
URL: http://svnweb.freebsd.org/changeset/base/250530
Log:
Add simple testcases for fcntl(F_DUP2FD_CLOEXEC).
Modified:
head/tools/regression/file/dup/dup.c
Modified: head/tools/regression/file/dup/dup.c
==============================================================================
--- head/tools/regression/file/dup/dup.c Sat May 11 21:23:55 2013
(r250529)
+++ head/tools/regression/file/dup/dup.c Sat May 11 22:13:24 2013
(r250530)
@@ -32,6 +32,12 @@
* Test #18: check if fcntl(F_DUPFD_CLOEXEC) works.
* Test #19: check if fcntl(F_DUPFD_CLOEXEC) set close-on-exec flag for duped
* fd.
+ * Test #20: check if fcntl(F_DUP2FD_CLOEXEC) works.
+ * Test #21: check if fcntl(F_DUP2FD_CLOEXEC) returned a fd we asked for.
+ * Test #22: check if fcntl(F_DUP2FD_CLOEXEC) set close-on-exec flag for duped
+ * fd.
+ * Test #23: check if fcntl(F_DUP2FD_CLOEXEC) to a fd > current maximum number
+ * of open files limit work.
*/
#include <sys/types.h>
@@ -68,7 +74,7 @@ main(int __unused argc, char __unused *a
orgfd = getafile();
- printf("1..19\n");
+ printf("1..23\n");
/* If dup(2) ever work? */
if ((fd1 = dup(orgfd)) < 0)
@@ -251,5 +257,45 @@ main(int __unused argc, char __unused *a
printf("ok %d - fcntl(F_DUPFD_CLOEXEC) set close-on-exec\n",
test);
+ /* If fcntl(F_DUP2FD_CLOEXEC) ever work? */
+ if ((fd2 = fcntl(fd1, F_DUP2FD_CLOEXEC, fd1 + 1)) < 0)
+ err(1, "fcntl(F_DUP2FD_CLOEXEC)");
+ printf("ok %d - fcntl(F_DUP2FD_CLOEXEC) works\n", ++test);
+
+ /* Do we get the right fd? */
+ ++test;
+ if (fd2 != fd1 + 1)
+ printf(
+ "no ok %d - fcntl(F_DUP2FD_CLOEXEC) didn't give us the
right fd\n",
+ test);
+ else
+ printf("ok %d - fcntl(F_DUP2FD_CLOEXEC) returned a correct
fd\n",
+ test);
+
+ /* Was close-on-exec set? */
+ ++test;
+ if (fcntl(fd2, F_GETFD) != FD_CLOEXEC)
+ printf(
+ "not ok %d - fcntl(F_DUP2FD_CLOEXEC) didn't set
close-on-exec\n",
+ test);
+ else
+ printf("ok %d - fcntl(F_DUP2FD_CLOEXEC) set close-on-exec\n",
+ test);
+
+ /*
+ * It is unclear what F_DUP2FD_CLOEXEC should do when duplicating a
+ * file descriptor onto itself.
+ */
+
+ ++test;
+ if (getrlimit(RLIMIT_NOFILE, &rlp) < 0)
+ err(1, "getrlimit");
+ if ((fd2 = fcntl(fd1, F_DUP2FD_CLOEXEC, rlp.rlim_cur + 1)) >= 0)
+ printf("not ok %d - fcntl(F_DUP2FD_CLOEXEC) bypassed NOFILE
limit\n",
+ test);
+ else
+ printf("ok %d - fcntl(F_DUP2FD_CLOEXEC) didn't bypass NOFILE
limit\n",
+ test);
+
return (0);
}
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