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-rw-r--r--contrib/sendmail/include/sm/setjmp.h46
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diff --git a/contrib/sendmail/include/sm/setjmp.h b/contrib/sendmail/include/sm/setjmp.h
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+/*
+ * Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers.
+ * All rights reserved.
+ *
+ * By using this file, you agree to the terms and conditions set
+ * forth in the LICENSE file which can be found at the top level of
+ * the sendmail distribution.
+ *
+ * $Id: setjmp.h,v 1.3 2001/03/08 03:23:08 ca Exp $
+ */
+
+#ifndef SM_SETJMP_H
+# define SM_SETJMP_H
+
+# include <sm/config.h>
+# include <setjmp.h>
+
+/*
+** sm_setjmp_sig is a setjmp that saves the signal mask.
+** sm_setjmp_nosig is a setjmp that does *not* save the signal mask.
+** SM_JMPBUF_T is used with both of the above macros.
+**
+** On most systems, these can be implemented using sigsetjmp.
+** Some old BSD systems do not have sigsetjmp, but they do have
+** setjmp and _setjmp, which are just as good.
+*/
+
+# if SM_CONF_SIGSETJMP
+
+typedef sigjmp_buf SM_JMPBUF_T;
+# define sm_setjmp_sig(buf) sigsetjmp(buf, 1)
+# define sm_setjmp_nosig(buf) sigsetjmp(buf, 0)
+# define sm_longjmp_sig(buf, val) siglongjmp(buf, val)
+# define sm_longjmp_nosig(buf, val) siglongjmp(buf, val)
+
+# else /* SM_CONF_SIGSETJMP */
+
+typedef jmp_buf SM_JMPBUF_T;
+# define sm_setjmp_sig(buf) setjmp(buf)
+# define sm_longjmp_sig(buf, val) longjmp(buf, val)
+# define sm_setjmp_nosig(buf) _setjmp(buf)
+# define sm_longjmp_nosig(buf, val) _longjmp(buf, val)
+
+# endif /* SM_CONF_SIGSETJMP */
+
+#endif /* ! SM_SETJMP_H */
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