int sys32_rt_sigprocmask(int how, compat_sigset_t *set, compat_sigset_t *oset, unsigned int sigsetsize) { sigset_t old_set, new_set; int ret; mm_segment_t old_fs = get_fs(); if (set && get_sigset(&new_set, set)) return -EFAULT; set_fs (KERNEL_DS); ret = sys_rt_sigprocmask(how, set ? &new_set : NULL, oset ? &old_set : NULL, sigsetsize); set_fs (old_fs); if (!ret && oset && put_sigset(&old_set, oset)) return -EFAULT; return ret; }
asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset, compat_size_t sigsetsize) { sigset_t s; compat_sigset_t s32; int ret; mm_segment_t old_fs = get_fs(); if (set) { if (copy_from_user (&s32, set, sizeof(compat_sigset_t))) return -EFAULT; switch (_NSIG_WORDS) { case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32); case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32); case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32); case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32); } } set_fs (KERNEL_DS); ret = sys_rt_sigprocmask(how, set ? (sigset_t __user *) &s : NULL, oset ? (sigset_t __user *) &s : NULL, sigsetsize); set_fs (old_fs); if (ret) return ret; if (oset) { switch (_NSIG_WORDS) { case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3]; case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2]; case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1]; case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0]; } if (copy_to_user (oset, &s32, sizeof(compat_sigset_t))) return -EFAULT; } return 0; }