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b6e82f33ef
Remove extraneous decls. Add ``const'' to several places. Allow ``make NOALIAS=1'' to remove IP aliasing. Merge with OpenBSD - only the Makefiles vary. We can now survive a compile with -Wall -Wbad-function-cast -Wcast-align -Wcast-qual -Winline -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wredundant-decls -Wshadow -Wstrict-prototypes -Wwrite-strings -Wchar-subscripts (although the Makefile just contains -Wall).
74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
/*
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* $Id: sig.c,v 1.9 1997/10/26 01:03:42 brian Exp $
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*/
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#include <sys/types.h>
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#include <signal.h>
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#include "command.h"
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#include "mbuf.h"
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#include "log.h"
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#include "sig.h"
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static caused[NSIG]; /* An array of pending signals */
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static sig_type handler[NSIG]; /* all start at SIG_DFL */
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/* Record a signal in the "caused" array */
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static void
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signal_recorder(int sig)
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{
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caused[sig - 1]++;
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}
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/*
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* Set up signal_recorder, and record handler as the function to ultimately
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* call in handle_signal()
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*/
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sig_type
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pending_signal(int sig, sig_type fn)
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{
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sig_type Result;
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if (sig <= 0 || sig > NSIG) {
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/* Oops - we must be a bit out of date (too many sigs ?) */
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LogPrintf(LogALERT, "Eeek! %s:%s: I must be out of date!\n",
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__FILE__, __LINE__);
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return signal(sig, fn);
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}
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Result = handler[sig - 1];
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if (fn == SIG_DFL || fn == SIG_IGN) {
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signal(sig, fn);
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handler[sig - 1] = (sig_type) 0;
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} else {
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handler[sig - 1] = fn;
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signal(sig, signal_recorder);
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}
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caused[sig - 1] = 0;
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return Result;
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}
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/* Call the handlers for any pending signals */
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void
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handle_signals()
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{
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int sig;
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int got;
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do {
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got = 0;
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for (sig = 0; sig < NSIG; sig++)
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if (caused[sig]) {
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caused[sig]--;
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got++;
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(*handler[sig]) (sig + 1);
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}
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} while (got);
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}
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