linux-vax-kern-commit

[Dave A. <ai...@us...>]

Update of /cvsroot/linux-vax/kernel-2.4/arch/vax/kernel
In directory usw-pr-cvs1:/tmp/cvs-serv22125/arch/vax/kernel

Modified Files:
	signal.c 
Log Message:
DA: implement copy_siginfo_to_user.. last unimpl call...
copied from mips.. which is same as x86


Index: signal.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/vax/kernel/signal.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- signal.c	2001/01/26 00:27:00	1.1
+++ signal.c	2001/05/27 16:35:13	1.2
@@ -6,7 +6,21 @@
 
 */
 
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
 #include <linux/errno.h>
+#include <linux/wait.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+
+#include <asm/bitops.h>
+#include <asm/pgalloc.h>
+#include <asm/uaccess.h>
 
 /* FIXME: obviously, these need to be filled in... */
 
@@ -17,6 +31,7 @@
 
 int sys_sigsuspend(void)
 {
+
 	return -ENOSYS;
 }
 
@@ -40,3 +55,38 @@
 	return -ENOSYS;
 }
 
+int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from)
+{
+  if (!access_ok (VERIFY_WRITE, to, sizeof(siginfo_t)))
+    return -EFAULT;
+  if (from->si_code < 0)
+    return __copy_to_user(to, from, sizeof(siginfo_t));
+  else {
+    int err;
+    
+    /* If you change siginfo_t structure, please be sure
+       this code is fixed accordingly.
+       It should never copy any pad contained in the structure
+       to avoid security leaks, but must copy the generic
+       3 ints plus the relevant union member.  */
+    err = __put_user(from->si_signo, &to->si_signo);
+    err |= __put_user(from->si_errno, &to->si_errno);
+    err |= __put_user((short)from->si_code, &to->si_code);
+    /* First 32bits of unions are always present.  */
+    err |= __put_user(from->si_pid, &to->si_pid);
+    switch (from->si_code >> 16) {
+    case __SI_FAULT >> 16:
+      break;
+    case __SI_CHLD >> 16:
+      err |= __put_user(from->si_utime, &to->si_utime);
+      err |= __put_user(from->si_stime, &to->si_stime);
+      err |= __put_user(from->si_status, &to->si_status);
+    default:
+      err |= __put_user(from->si_uid, &to->si_uid);
+      break;
+      /* case __SI_RT: This is not generated by the kernel as of now.  */
+    }
+    return err;
+  }
+  
+}