[src/trunk]: src/regress/lib/libc/clone in test1, unmap stack when finished. ...

[cgd <cgd%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ef0b9c6bfd45
branches:  trunk
changeset: 542807:ef0b9c6bfd45
user:      cgd <cgd%NetBSD.org@localhost>
date:      Sat Feb 08 00:44:00 2003 +0000

description:
in test1, unmap stack when finished.  in test2, try NULL fn ptr and
NULL stack ptr independently, to make sure that both are properly
checked in libc.  (To do this, need to alloc a stack in test2, as well.)

diffstat:

 regress/lib/libc/clone/clonetest.c |  35 ++++++++++++++++++++++++++++-------
 1 files changed, 28 insertions(+), 7 deletions(-)

diffs (71 lines):

diff -r 0e8057cec3ef -r ef0b9c6bfd45 regress/lib/libc/clone/clonetest.c
--- a/regress/lib/libc/clone/clonetest.c        Sat Feb 08 00:28:25 2003 +0000
+++ b/regress/lib/libc/clone/clonetest.c        Sat Feb 08 00:44:00 2003 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: clonetest.c,v 1.7 2002/07/20 08:36:24 grant Exp $      */
+/*     $NetBSD: clonetest.c,v 1.8 2003/02/08 00:44:00 cgd Exp $        */
 
 /*
  * This file placed in the public domain.
@@ -44,18 +44,18 @@
 test1()
 {
        sigset_t mask;
-       void *stack;
+       void *allocstack, *stack;
        pid_t pid;
        __volatile long frobme[2];
        int stat;
 
-       stack = mmap(NULL, STACKSIZE, PROT_READ|PROT_WRITE|PROT_EXEC,
+       allocstack = mmap(NULL, STACKSIZE, PROT_READ|PROT_WRITE|PROT_EXEC,
            MAP_PRIVATE|MAP_ANON, -1, (off_t) 0);
 
-       if (stack == MAP_FAILED)
+       if (allocstack == MAP_FAILED)
                err(1, "mmap stack");
 
-       stack = (caddr_t) stack + STACKSIZE * stackdir(&stat);
+       stack = (caddr_t) allocstack + STACKSIZE * stackdir(&stat);
 
        printf("parent: stack = %p, frobme = %p\n", stack, frobme);
        fflush(stdout);
@@ -91,15 +91,36 @@
 
        if (WEXITSTATUS(stat) != CHILDEXIT || frobme[1] != FROBVAL)
                exit(1);
+
+       if (munmap(allocstack, STACKSIZE) == -1)
+               err(1, "munmap stack");
 }
 
 static void
 test2()
 {
-       if (__clone(0, NULL,
+       void *allocstack, *stack;
+       int stat;
+
+       allocstack = mmap(NULL, STACKSIZE, PROT_READ|PROT_WRITE|PROT_EXEC,
+           MAP_PRIVATE|MAP_ANON, -1, (off_t) 0);
+
+       if (allocstack == MAP_FAILED)
+               err(1, "mmap stack");
+
+       stack = (caddr_t) allocstack + STACKSIZE * stackdir(&stat);
+
+       if (__clone(0, stack,
            CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|SIGCHLD,
            (void *)NULL) != -1 || errno != EINVAL)
-               errx(1, "clone did not return EINVAL on invalid arguments");
+               errx(1, "clone did not return EINVAL on NULL function pointer");
+       if (__clone(newclone, NULL,
+           CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|SIGCHLD,
+           (void *)NULL) != -1 || errno != EINVAL)
+               errx(1, "clone did not return EINVAL on NULL stack pointer");
+
+       if (munmap(allocstack, STACKSIZE) == -1)
+               err(1, "munmap stack");
 }
 
 static void