46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/*
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* Copyright (c) 1989 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that: (1) source distributions retain this entire copyright
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* notice and comment, and (2) distributions including binaries display
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* the following acknowledgement: ``This product includes software
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* developed by the University of California, Berkeley and its contributors''
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* in the documentation or other materials provided with the distribution
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* and in all advertising materials mentioning features or use of this
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* software. Neither the name of the University nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)siginterrupt.c 5.5 (Berkeley) 6/1/90";
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#endif /* LIBC_SCCS and not lint */
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#define _KERNEL
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#include "ixemul.h"
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/*
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* Set signal state to prevent restart of system calls
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* after an instance of the indicated signal.
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*/
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int
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siginterrupt(int sig, int flag)
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{
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struct sigaction sa;
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int ret;
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if ((ret = syscall (SYS_sigaction, sig, (struct sigaction *)0, &sa)) < 0)
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return (ret);
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if (flag) {
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sa.sa_flags &= ~SA_RESTART;
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} else {
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sa.sa_flags |= SA_RESTART;
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}
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return (syscall (SYS_sigaction, sig, &sa, (struct sigaction *)0));
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}
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