date and time created 91/04/12 13:40:38 by bostic

SCCS-vsn: lib/libc/vax/sys/cache.lib/getuid.c 5.1
SCCS-vsn: lib/libc/vax/sys/cache.lib/x.c 5.1

diff --git a/usr/src/lib/libc/vax/sys/cache.lib/getuid.c b/usr/src/lib/libc/vax/sys/cache.lib/getuid.c
new file mode 100644 (file)
index 0000000..11d09ab
--- /dev/null
+++ b/usr/src/lib/libc/vax/sys/cache.lib/getuid.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 1983 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+       .asciz "@(#)getuid.c    5.1 (Berkeley) %G%"
+#endif /* LIBC_SCCS and not lint */
+
+#include "SYS.h"
+
+       .data
+myuid: .long   -1
+myeuid:        .long   -1
+       .text
+
+ENTRY(getuid)
+       movl    myuid,r0        # check cache
+       cmpl    $-1,r0
+       bneq    doit
+       ret
+doit:
+       chmk    $SYS_getuid
+       jcs     err
+       movl    r0,myuid        # set cache
+       movl    r1,myeuid       # set cache
+       ret                     # uid = getuid();
+
+ENTRY(geteuid)
+       movl    myeuid,r0       # check cache
+       cmpl    $-1,r0
+       bneq    doit
+       ret
+doit:
+       chmk    $SYS_getuid
+       jcs     err
+       movl    r0,myuid        # set cache
+       movl    r1,r0
+       movl    r0,myeuid       # set cache
+       ret                     # uid = geteuid();
+err:
+       jmp cerror
+
+ENTRY(setreuid)
+       mnegl   $1,myuid
+       mnegl   $1,myeuid
+       chmk    $SYS_setreuid
+       jcs     err
+       ret             # setreuid(ruid, euid)

diff --git a/usr/src/lib/libc/vax/sys/cache.lib/x.c b/usr/src/lib/libc/vax/sys/cache.lib/x.c
new file mode 100644 (file)
index 0000000..b7cc1e0
--- /dev/null
+++ b/usr/src/lib/libc/vax/sys/cache.lib/x.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1989 The Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)x.c        5.1 (Berkeley) %G%";
+#endif /* not lint */
+
+main()
+{
+       register int i;
+
+       for (i = 0; i < 100000; i++)
+               if (vfork() == 0) {
+                       printf("child: %d\n", getpid());
+                       exit(0);
+               } else {
+                       printf("parent: %d\n", getpid());
+                       wait(0);
+               }
+}