[w3m-dev 02879] reset signals

* etc.c (reset_signals): added
* etc.c (mySystem): use reset_signals()
* file.c (uncompress_stream): use reset_signals()
* proto.h (reset_signals): added
* search.c (init_migemo): kill by SIGKILL
* search.c (open_migemo): use reset_signals()
From: Hironori Sakamoto <hsaka@mth.biglobe.ne.jp>

ChangeLog

@@ -1,3 +1,13 @@
+2002-01-22  Hironori Sakamoto <hsaka@mth.biglobe.ne.jp>
+
+	* [w3m-dev 02879] reset signals
+	* etc.c (reset_signals): added
+	* etc.c (mySystem): use reset_signals()
+	* file.c (uncompress_stream): use reset_signals()
+	* proto.h (reset_signals): added
+	* search.c (init_migemo): kill by SIGKILL
+	* search.c (open_migemo): use reset_signals()
+
 2002-01-22  Fumitoshi UKAI  <ukai@debian.or.jp>
 
 	* url.c (URI_PATTERN): remove \
@@ -2174,4 +2184,4 @@
 	* release-0-2-1
 	* import w3m-0.2.1
 
-$Id: ChangeLog,v 1.247 2002/01/21 16:58:32 ukai Exp $
+$Id: ChangeLog,v 1.248 2002/01/21 17:57:27 ukai Exp $

etc.c

@@ -1,4 +1,4 @@
-/* $Id: etc.c,v 1.16 2001/12/26 18:29:33 ukai Exp $ */
+/* $Id: etc.c,v 1.17 2002/01/21 17:57:27 ukai Exp $ */
 #include "fm.h"
 #include <pwd.h>
 #include "myctype.h"
@@ -1031,6 +1031,31 @@ romanAlphabet(int n)
     return r;
 }
 
+#ifndef SIGIOT
+#define SIGIOT SIGABRT
+#endif				/* not SIGIOT */
+
+void
+reset_signals(void)
+{
+    signal(SIGHUP, SIG_DFL);	/* terminate process */
+    signal(SIGINT, SIG_DFL);	/* terminate process */
+    signal(SIGQUIT, SIG_DFL);	/* terminate process */
+    signal(SIGTERM, SIG_DFL);	/* terminate process */
+    signal(SIGILL, SIG_DFL);	/* create core image */
+    signal(SIGIOT, SIG_DFL);	/* create core image */
+    signal(SIGFPE, SIG_DFL);	/* create core image */
+#ifdef SIGBUS
+    signal(SIGBUS, SIG_DFL);	/* create core image */
+#endif				/* SIGBUS */
+#ifdef SIGCHLD
+    signal(SIGCHLD, SIG_IGN);
+#endif
+#ifdef SIGPIPE
+    signal(SIGPIPE, SIG_IGN);
+#endif
+}
+
 void
 mySystem(char *command, int background)
 {
@@ -1043,9 +1068,7 @@ mySystem(char *command, int background)
 	int pid;
 	flush_tty();
 	if ((pid = fork()) == 0) {
-#ifdef SIGCHLD
+	    reset_signals();
-	    signal(SIGCHLD, SIG_IGN);
-#endif
 	    setpgrp();
 	    close_tty();
 	    fclose(stdout);

file.c

@@ -1,4 +1,4 @@
-/* $Id: file.c,v 1.44 2002/01/15 03:45:02 ukai Exp $ */
+/* $Id: file.c,v 1.45 2002/01/21 17:57:28 ukai Exp $ */
 #include "fm.h"
 #include <sys/types.h>
 #include "myctype.h"
@@ -6149,7 +6149,7 @@ uncompress_stream(URLFile *uf)
     flush_tty();
     /* fd1[0]: read, fd1[1]: write */
     if ((pid1 = fork()) == 0) {
-	signal(SIGINT, SIG_DFL);
+	reset_signals();
 	close(fd1[0]);
 	if (tmpf) {
 #ifdef USE_BINMODE_STREAM

proto.h

@@ -1,4 +1,4 @@
-/* $Id: proto.h,v 1.27 2002/01/17 11:06:45 ukai Exp $ */
+/* $Id: proto.h,v 1.28 2002/01/21 17:57:28 ukai Exp $ */
 /* 
  *   This file was automatically generated by version 1.7 of cextract.
  *   Manual editing not recommended.
@@ -485,6 +485,7 @@ extern void add_auth_cookie(char *host, int port, char *realm, Str cookie);
 extern char *last_modified(Buffer *buf);
 extern Str romanNumeral(int n);
 extern Str romanAlphabet(int n);
+extern void reset_signals(void);
 extern void mySystem(char *command, int background);
 extern Str myExtCommand(char *cmd, char *arg, int redirect);
 extern Str myEditor(char *cmd, char *file, int line);

search.c

@@ -1,4 +1,4 @@
-/* $Id: search.c,v 1.16 2002/01/17 15:49:04 ukai Exp $ */
+/* $Id: search.c,v 1.17 2002/01/21 17:57:28 ukai Exp $ */
 #include "fm.h"
 #include "regex.h"
 #include <signal.h>
@@ -28,7 +28,7 @@ init_migemo()
 	fclose(migemow);
     migemor = migemow = NULL;
     if (migemo_pid)
-	kill(migemo_pid, SIGTERM);
+	kill(migemo_pid, SIGKILL);
     migemo_pid = 0;
 }
 
@@ -50,10 +50,7 @@ open_migemo(char *migemo_command)
 	goto err2;
     if (migemo_pid == 0) {
 	/* child */
-	signal(SIGINT, SIG_IGN);
+	reset_signals();
-#ifdef SIGCHLD
-	signal(SIGCHLD, SIG_IGN);
-#endif
 #ifdef HAVE_SETPGRP
 	setpgrp();
 #endif