Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Harvey Hunt |
224 |
58.49% |
1 |
5.56% |
| Linus Torvalds (pre-git) |
100 |
26.11% |
2 |
11.11% |
| Franck Bui-Huu |
29 |
7.57% |
2 |
11.11% |
| Ralf Baechle |
9 |
2.35% |
5 |
27.78% |
| Deepa Dinamani |
6 |
1.57% |
1 |
5.56% |
| Andrew Morton |
5 |
1.31% |
2 |
11.11% |
| Atsushi Nemoto |
5 |
1.31% |
2 |
11.11% |
| Paul Burton |
4 |
1.04% |
2 |
11.11% |
| Linus Torvalds |
1 |
0.26% |
1 |
5.56% |
| Total |
383 |
|
18 |
|
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 1994 - 2000, 2006 Ralf Baechle
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
* Copyright (C) 2016, Imagination Technologies Ltd.
*/
#include <linux/compat.h>
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/syscalls.h>
#include <asm/compat-signal.h>
#include <linux/uaccess.h>
#include <asm/unistd.h>
#include "signal-common.h"
/* 32-bit compatibility types */
typedef unsigned int __sighandler32_t;
typedef void (*vfptr_t)(void);
/*
* Atomically swap in the new signal mask, and wait for a signal.
*/
asmlinkage int sys32_sigsuspend(compat_sigset_t __user *uset)
{
return compat_sys_rt_sigsuspend(uset, sizeof(compat_sigset_t));
}
SYSCALL_DEFINE3(32_sigaction, long, sig, const struct compat_sigaction __user *, act,
struct compat_sigaction __user *, oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
int err = 0;
if (act) {
old_sigset_t mask;
s32 handler;
if (!access_ok(act, sizeof(*act)))
return -EFAULT;
err |= __get_user(handler, &act->sa_handler);
new_ka.sa.sa_handler = (void __user *)(s64)handler;
err |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
err |= __get_user(mask, &act->sa_mask.sig[0]);
if (err)
return -EFAULT;
siginitset(&new_ka.sa.sa_mask, mask);
}
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
if (!access_ok(oact, sizeof(*oact)))
return -EFAULT;
err |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
err |= __put_user((u32)(u64)old_ka.sa.sa_handler,
&oact->sa_handler);
err |= __put_user(old_ka.sa.sa_mask.sig[0], oact->sa_mask.sig);
err |= __put_user(0, &oact->sa_mask.sig[1]);
err |= __put_user(0, &oact->sa_mask.sig[2]);
err |= __put_user(0, &oact->sa_mask.sig[3]);
if (err)
return -EFAULT;
}
return ret;
}