From:	sos AT prospect DOT com DOT ru (Sergey Okhapkin)
Subject:	system() fix.
15 Jun 1998 06:04:37 -0700 :
Message-ID:	<01BD987B.B1F2F150.cygnus.cygwin32.developers@sos>
To:	"'cygwin32-developers AT cygnus DOT com'" <cygwin32-developers AT cygnus DOT com>

syscalls.cc:	(system): ignore SIGINT, SIGQUIT and SIGCHLD while in a system() call.

e:\usr\src\cygnus\cdk\winsup>diff -up syscalls.cc.orig syscalls.cc
--- syscalls.cc.orig    Sun Jun 07 14:10:53 1998
+++ syscalls.cc Mon Jun 15 16:27:24 1998
@@ -1335,10 +1335,14 @@ system (const char *cmdstring)
 {
   int res;
   const char* command[4];
+  _sig_func_ptr oldint, oldquit, oldchld;

   if (cmdstring == (const char *) NULL)
         return 1;

+  oldint = signal (SIGINT, SIG_IGN);
+  oldquit = signal (SIGQUIT, SIG_IGN);
+  oldchld = signal (SIGCHLD, SIG_IGN);
   command[0] = "sh";
   command[1] = "-c";
   command[2] = cmdstring;
@@ -1351,6 +1355,9 @@ system (const char *cmdstring)
       res = 127;
     }

+  signal (SIGINT, oldint);
+  signal (SIGQUIT, oldquit);
+  signal (SIGCHLD, oldchld);
   return res;
 }


-- 
Sergey Okhapkin, http://www.lexa.ru/sos
Moscow, Russia

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