Author: jilles
Date: Fri Aug 16 13:16:55 2013
New Revision: 254411
URL: http://svnweb.freebsd.org/changeset/base/254411
Log:
Add tests for dup3().
Modified:
head/tools/regression/file/dup/dup.c
Modified: head/tools/regression/file/dup/dup.c
==============================================================================
--- head/tools/regression/file/dup/dup.c Fri Aug 16 13:16:27 2013
(r254410)
+++ head/tools/regression/file/dup/dup.c Fri Aug 16 13:16:55 2013
(r254411)
@@ -38,6 +38,16 @@
* fd.
* Test #23: check if fcntl(F_DUP2FD_CLOEXEC) to a fd > current maximum number
* of open files limit work.
+ * Test #24: check if dup3(O_CLOEXEC) works.
+ * Test #25: check if dup3(O_CLOEXEC) returned a fd we asked for.
+ * Test #26: check if dup3(O_CLOEXEC) set close-on-exec flag for duped fd.
+ * Test #27: check if dup3(0) works.
+ * Test #28: check if dup3(0) returned a fd we asked for.
+ * Test #29: check if dup3(0) cleared close-on-exec flag for duped fd.
+ * Test #30: check if dup3(O_CLOEXEC) fails if oldfd == newfd.
+ * Test #31: check if dup3(0) fails if oldfd == newfd.
+ * Test #32: check if dup3(O_CLOEXEC) to a fd > current maximum number of
+ * open files limit work.
*/
#include <sys/types.h>
@@ -74,7 +84,7 @@ main(int __unused argc, char __unused *a
orgfd = getafile();
- printf("1..23\n");
+ printf("1..32\n");
/* If dup(2) ever work? */
if ((fd1 = dup(orgfd)) < 0)
@@ -297,5 +307,80 @@ main(int __unused argc, char __unused *a
printf("ok %d - fcntl(F_DUP2FD_CLOEXEC) didn't bypass NOFILE
limit\n",
test);
+ /* Does dup3(O_CLOEXEC) ever work? */
+ if ((fd2 = dup3(fd1, fd1 + 1, O_CLOEXEC)) < 0)
+ err(1, "dup3(O_CLOEXEC)");
+ printf("ok %d - dup3(O_CLOEXEC) works\n", ++test);
+
+ /* Do we get the right fd? */
+ ++test;
+ if (fd2 != fd1 + 1)
+ printf(
+ "no ok %d - dup3(O_CLOEXEC) didn't give us the right fd\n",
+ test);
+ else
+ printf("ok %d - dup3(O_CLOEXEC) returned a correct fd\n",
+ test);
+
+ /* Was close-on-exec set? */
+ ++test;
+ if (fcntl(fd2, F_GETFD) != FD_CLOEXEC)
+ printf(
+ "not ok %d - dup3(O_CLOEXEC) didn't set close-on-exec\n",
+ test);
+ else
+ printf("ok %d - dup3(O_CLOEXEC) set close-on-exec\n",
+ test);
+
+ /* Does dup3(0) ever work? */
+ if ((fd2 = dup3(fd1, fd1 + 1, 0)) < 0)
+ err(1, "dup3(0)");
+ printf("ok %d - dup3(0) works\n", ++test);
+
+ /* Do we get the right fd? */
+ ++test;
+ if (fd2 != fd1 + 1)
+ printf(
+ "no ok %d - dup3(0) didn't give us the right fd\n",
+ test);
+ else
+ printf("ok %d - dup3(0) returned a correct fd\n",
+ test);
+
+ /* Was close-on-exec cleared? */
+ ++test;
+ if (fcntl(fd2, F_GETFD) != 0)
+ printf(
+ "not ok %d - dup3(0) didn't clear close-on-exec\n",
+ test);
+ else
+ printf("ok %d - dup3(0) cleared close-on-exec\n",
+ test);
+
+ /* dup3() does not allow duplicating to the same fd */
+ ++test;
+ if (dup3(fd1, fd1, O_CLOEXEC) != -1)
+ printf(
+ "not ok %d - dup3(fd1, fd1, O_CLOEXEC) succeeded\n", test);
+ else
+ printf("ok %d - dup3(fd1, fd1, O_CLOEXEC) failed\n", test);
+
+ ++test;
+ if (dup3(fd1, fd1, 0) != -1)
+ printf(
+ "not ok %d - dup3(fd1, fd1, 0) succeeded\n", test);
+ else
+ printf("ok %d - dup3(fd1, fd1, 0) failed\n", test);
+
+ ++test;
+ if (getrlimit(RLIMIT_NOFILE, &rlp) < 0)
+ err(1, "getrlimit");
+ if ((fd2 = dup3(fd1, rlp.rlim_cur + 1, O_CLOEXEC)) >= 0)
+ printf("not ok %d - dup3(O_CLOEXEC) bypassed NOFILE limit\n",
+ test);
+ else
+ printf("ok %d - dup3(O_CLOEXEC) didn't bypass NOFILE limit\n",
+ test);
+
return (0);
}
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