Import of sendmail version 8.11.0 into vendor branch SENDMAIL with

release tag v8_11_0.

Obtained from: ftp://ftp.sendmail.org/pub/sendmail/

6 files changed, 490 insertions, 0 deletions

diff --git a/contrib/sendmail/include/sendmail/cdefs.h b/contrib/sendmail/include/sendmail/cdefs.h
new file mode 100644
index 0000000..bd7285bc
--- /dev/null
+++ b/contrib/sendmail/include/sendmail/cdefs.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  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: cdefs.h,v 8.5 1999/06/02 22:32:17 gshapiro Exp $
+ *	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+ */
+
+#ifndef _CDEFS_H_
+# define	_CDEFS_H_
+
+# if defined(__cplusplus)
+#  define	__BEGIN_DECLS	extern "C" {
+#  define	__END_DECLS	};
+# else /* defined(__cplusplus) */
+#  define	__BEGIN_DECLS
+#  define	__END_DECLS
+# endif /* defined(__cplusplus) */
+
+/*
+ * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+ * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+ * The __CONCAT macro is a bit tricky -- make sure you don't put spaces
+ * in between its arguments.  __CONCAT can also concatenate double-quoted
+ * strings produced by the __STRING macro, but this only works with ANSI C.
+ */
+# if defined(__STDC__) || defined(__cplusplus)
+#  define	__P(protos)	protos		/* full-blown ANSI C */
+#  ifndef __CONCAT
+#   define	__CONCAT(x,y)	x ## y
+#  endif /* ! __CONCAT */
+#  define	__STRING(x)	#x
+
+#  ifndef __const
+#   define	__const		const		/* define reserved names to standard */
+#  endif /* ! __const */
+#  define	__signed	signed
+#  define	__volatile	volatile
+#  if defined(__cplusplus)
+#   define	__inline	inline		/* convert to C++ keyword */
+#  else /* defined(__cplusplus) */
+#   ifndef __GNUC__
+#    define	__inline			/* delete GCC keyword */
+#   endif /* ! __GNUC__ */
+#  endif /* defined(__cplusplus) */
+
+# else /* defined(__STDC__) || defined(__cplusplus) */
+#  define	__P(protos)	()		/* traditional C preprocessor */
+#  ifndef __CONCAT
+#   define	__CONCAT(x,y)	x/**/y
+#  endif /* ! __CONCAT */
+#  define	__STRING(x)	"x"
+
+#  ifndef __GNUC__
+#   define	__const				/* delete pseudo-ANSI C keywords */
+#   define	__inline
+#   define	__signed
+#   define	__volatile
+/*
+ * In non-ANSI C environments, new programs will want ANSI-only C keywords
+ * deleted from the program and old programs will want them left alone.
+ * When using a compiler other than gcc, programs using the ANSI C keywords
+ * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
+ * When using "gcc -traditional", we assume that this is the intent; if
+ * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
+ */
+#   ifndef NO_ANSI_KEYWORDS
+#    define	const				/* delete ANSI C keywords */
+#    define	inline
+#    define	signed
+#    define	volatile
+#   endif /* ! NO_ANSI_KEYWORDS */
+#  endif /* ! __GNUC__ */
+# endif /* defined(__STDC__) || defined(__cplusplus) */
+
+/*
+ * GCC1 and some versions of GCC2 declare dead (non-returning) and
+ * pure (no side effects) functions using "volatile" and "const";
+ * unfortunately, these then cause warnings under "-ansi -pedantic".
+ * GCC2 uses a new, peculiar __attribute__((attrs)) style.  All of
+ * these work for GNU C++ (modulo a slight glitch in the C++ grammar
+ * in the distribution version of 2.5.5).
+ */
+# if !defined(__GNUC__) || __GNUC__ < 2 || \
+	(__GNUC__ == 2 && __GNUC_MINOR__ < 5)
+#  define	__attribute__(x)	/* delete __attribute__ if non-gcc or gcc1 */
+#  if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+#   define	__dead		__volatile
+#   define	__pure		__const
+#  endif /* defined(__GNUC__) && !defined(__STRICT_ANSI__) */
+# endif /* !defined(__GNUC__) || __GNUC__ < 2 || \ */
+
+/* Delete pseudo-keywords wherever they are not available or needed. */
+# ifndef __dead
+#  define	__dead
+#  define	__pure
+# endif /* ! __dead */
+
+#endif /* ! _CDEFS_H_ */
diff --git a/contrib/sendmail/include/sendmail/errstring.h b/contrib/sendmail/include/sendmail/errstring.h
new file mode 100644
index 0000000..b3b2480
--- /dev/null
+++ b/contrib/sendmail/include/sendmail/errstring.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 1998-2000 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: errstring.h,v 8.6.4.1 2000/05/26 18:24:13 geir Exp $
+ */
+
+/*
+**  ERRSTRING.H -- Error codes.
+*/
+
+#include <errno.h>
+
+extern int	errno;
+
+/*
+**  These are used in a few cases where we need some special
+**  error codes, but where the system doesn't provide something
+**  reasonable.  They are printed in errstring.
+*/
+
+#ifndef E_PSEUDOBASE
+# define E_PSEUDOBASE	256
+#endif /* ! E_PSEUDOBASE */
+
+#define E_SM_OPENTIMEOUT (E_PSEUDOBASE + 0)	/* Timeout on file open */
+#define E_SM_NOSLINK	(E_PSEUDOBASE + 1)	/* Symbolic links not allowed */
+#define E_SM_NOHLINK	(E_PSEUDOBASE + 2)	/* Hard links not allowed */
+#define E_SM_REGONLY	(E_PSEUDOBASE + 3)	/* Regular files only */
+#define E_SM_ISEXEC	(E_PSEUDOBASE + 4)	/* Executable files not allowed */
+#define E_SM_WWDIR	(E_PSEUDOBASE + 5)	/* World writable directory */
+#define E_SM_GWDIR	(E_PSEUDOBASE + 6)	/* Group writable directory */
+#define E_SM_FILECHANGE (E_PSEUDOBASE + 7)	/* File changed after open */
+#define E_SM_WWFILE	(E_PSEUDOBASE + 8)	/* World writable file */
+#define E_SM_GWFILE	(E_PSEUDOBASE + 9)	/* Group writable file */
+#define E_SM_GRFILE	(E_PSEUDOBASE + 10)	/* g readable file */
+#define E_SM_WRFILE	(E_PSEUDOBASE + 11)	/* o readable file */
+#define E_DNSBASE	(E_PSEUDOBASE + 20)	/* base for DNS h_errno */
+#define E_SMDBBASE	(E_PSEUDOBASE + 40)	/* base for libsmdb errors */
+#define E_LDAPBASE	(E_PSEUDOBASE + 70)	/* base for LDAP errors */
+
+/* libsmdb */
+#define SMDBE_OK			0
+#define SMDBE_MALLOC			(E_SMDBBASE + 1)
+#define SMDBE_GDBM_IS_BAD		(E_SMDBBASE + 2)
+#define SMDBE_UNSUPPORTED		(E_SMDBBASE + 3)
+#define SMDBE_DUPLICATE			(E_SMDBBASE + 4)
+#define SMDBE_BAD_OPEN			(E_SMDBBASE + 5)
+#define SMDBE_NOT_FOUND			(E_SMDBBASE + 6)
+#define SMDBE_UNKNOWN_DB_TYPE		(E_SMDBBASE + 7)
+#define SMDBE_UNSUPPORTED_DB_TYPE	(E_SMDBBASE + 8)
+#define SMDBE_INCOMPLETE		(E_SMDBBASE + 9)
+#define SMDBE_KEY_EMPTY			(E_SMDBBASE + 10)
+#define SMDBE_KEY_EXIST			(E_SMDBBASE + 11)
+#define SMDBE_LOCK_DEADLOCK		(E_SMDBBASE + 12)
+#define SMDBE_LOCK_NOT_GRANTED		(E_SMDBBASE + 13)
+#define SMDBE_LOCK_NOT_HELD		(E_SMDBBASE + 14)
+#define SMDBE_RUN_RECOVERY		(E_SMDBBASE + 15)
+#define SMDBE_IO_ERROR			(E_SMDBBASE + 16)
+#define SMDBE_READ_ONLY			(E_SMDBBASE + 17)
+#define SMDBE_DB_NAME_TOO_LONG 		(E_SMDBBASE + 18)
+#define SMDBE_INVALID_PARAMETER 	(E_SMDBBASE + 19)
+#define SMDBE_ONLY_SUPPORTS_ONE_CURSOR	(E_SMDBBASE + 20)
+#define SMDBE_NOT_A_VALID_CURSOR	(E_SMDBBASE + 21)
+#define SMDBE_LAST_ENTRY		(E_SMDBBASE + 22)
+#define SMDBE_OLD_VERSION		(E_SMDBBASE + 23)
+
+extern const char	*errstring __P((int));
diff --git a/contrib/sendmail/include/sendmail/mailstats.h b/contrib/sendmail/include/sendmail/mailstats.h
new file mode 100644
index 0000000..830061d
--- /dev/null
+++ b/contrib/sendmail/include/sendmail/mailstats.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 1998, 1999 Sendmail, Inc. and its suppliers.
+ *	All rights reserved.
+ * Copyright (c) 1983 Eric P. Allman.  All rights reserved.
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  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: mailstats.h,v 8.13 1999/05/22 02:29:10 ca Exp $
+ */
+
+#define STAT_VERSION	3
+#define STAT_MAGIC	0x1B1DE
+
+/*
+**  Statistics structure.
+*/
+
+struct statistics
+{
+	int	stat_magic;		/* magic number */
+	int	stat_version;		/* stat file version */
+	time_t	stat_itime;		/* file initialization time */
+	short	stat_size;		/* size of this structure */
+	long	stat_cf;		/* # from connections */
+	long	stat_ct;		/* # to connections */
+	long	stat_cr;		/* # rejected connections */
+	long	stat_nf[MAXMAILERS];	/* # msgs from each mailer */
+	long	stat_bf[MAXMAILERS];	/* kbytes from each mailer */
+	long	stat_nt[MAXMAILERS];	/* # msgs to each mailer */
+	long	stat_bt[MAXMAILERS];	/* kbytes to each mailer */
+	long	stat_nr[MAXMAILERS];	/* # rejects by each mailer */
+	long	stat_nd[MAXMAILERS];	/* # discards by each mailer */
+};
diff --git a/contrib/sendmail/include/sendmail/pathnames.h b/contrib/sendmail/include/sendmail/pathnames.h
new file mode 100644
index 0000000..20b0f19
--- /dev/null
+++ b/contrib/sendmail/include/sendmail/pathnames.h
@@ -0,0 +1,36 @@
+/*-
+ * Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.
+ *	All rights reserved.
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  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: pathnames.h,v 8.16.8.5 2000/06/09 18:16:13 geir Exp $
+ */
+
+
+# ifndef _PATH_SENDMAILCF
+#  if defined(USE_VENDOR_CF_PATH) && defined(_PATH_VENDOR_CF)
+#   define _PATH_SENDMAILCF	_PATH_VENDOR_CF
+#  else /* defined(USE_VENDOR_CF_PATH) && defined(_PATH_VENDOR_CF) */
+#   define _PATH_SENDMAILCF	"/etc/mail/sendmail.cf"
+#  endif /* defined(USE_VENDOR_CF_PATH) && defined(_PATH_VENDOR_CF) */
+# endif /* ! _PATH_SENDMAILCF */
+
+# ifndef _PATH_SENDMAILPID
+#  ifdef BSD4_4
+#   define _PATH_SENDMAILPID	"/var/run/sendmail.pid"
+#  else /* BSD4_4 */
+#   define _PATH_SENDMAILPID	"/etc/mail/sendmail.pid"
+#  endif /* BSD4_4 */
+# endif /* ! _PATH_SENDMAILPID */
+
+# ifndef _PATH_HOSTS
+#  define _PATH_HOSTS		"/etc/hosts"
+# endif /* ! _PATH_HOSTS */
+
+
diff --git a/contrib/sendmail/include/sendmail/sendmail.h b/contrib/sendmail/include/sendmail/sendmail.h
new file mode 100644
index 0000000..bbc62d7
--- /dev/null
+++ b/contrib/sendmail/include/sendmail/sendmail.h
@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.
+ *	All rights reserved.
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman.  All rights reserved.
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  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: sendmail.h,v 8.34.4.4 2000/07/15 17:35:17 gshapiro Exp $
+ */
+
+/*
+**  SENDMAIL.H -- Global definitions for sendmail.
+*/
+
+#if SFIO
+# include <sfio/stdio.h>
+#else /* SFIO */
+# include <stdio.h>
+#endif /* SFIO */
+#include <string.h>
+#include "conf.h"
+#include "sendmail/errstring.h"
+#include "sendmail/useful.h"
+
+
+/**********************************************************************
+**  Table sizes, etc....
+**	There shouldn't be much need to change these....
+**********************************************************************/
+#ifndef MAXMAILERS
+# define MAXMAILERS	25	/* maximum mailers known to system */
+#endif /* ! MAXMAILERS */
+
+/*
+**  Data structure for bit maps.
+**
+**	Each bit in this map can be referenced by an ascii character.
+**	This is 256 possible bits, or 32 8-bit bytes.
+*/
+
+#define BITMAPBITS	256	/* number of bits in a bit map */
+#define BYTEBITS	8	/* number of bits in a byte */
+#define BITMAPBYTES	(BITMAPBITS / BYTEBITS)	/* number of bytes in bit map */
+
+/* internal macros */
+#define _BITWORD(bit)	((bit) / (BYTEBITS * sizeof (int)))
+#define _BITBIT(bit)	((unsigned int)1 << ((bit) % (BYTEBITS * sizeof (int))))
+
+typedef unsigned int	BITMAP256[BITMAPBYTES / sizeof (int)];
+
+/* test bit number N */
+#define bitnset(bit, map)	((map)[_BITWORD(bit)] & _BITBIT(bit))
+
+/* set bit number N */
+#define setbitn(bit, map)	(map)[_BITWORD(bit)] |= _BITBIT(bit)
+
+/* clear bit number N */
+#define clrbitn(bit, map)	(map)[_BITWORD(bit)] &= ~_BITBIT(bit)
+
+/* clear an entire bit map */
+#define clrbitmap(map)		memset((char *) map, '\0', BITMAPBYTES)
+
+
+/*
+**  Utility macros
+*/
+
+/* return number of bytes left in a buffer */
+#define SPACELEFT(buf, ptr)	(sizeof buf - ((ptr) - buf))
+/*
+**  Flags passed to safefile/safedirpath.
+*/
+
+#define SFF_ANYFILE	0L		/* no special restrictions */
+#define SFF_MUSTOWN	0x00000001L	/* user must own this file */
+#define SFF_NOSLINK	0x00000002L	/* file cannot be a symbolic link */
+#define SFF_ROOTOK	0x00000004L	/* ok for root to own this file */
+#define SFF_RUNASREALUID 0x00000008L	/* if no ctladdr, run as real uid */
+#define SFF_NOPATHCHECK	0x00000010L	/* don't bother checking dir path */
+#define SFF_SETUIDOK	0x00000020L	/* setuid files are ok */
+#define SFF_CREAT	0x00000040L	/* ok to create file if necessary */
+#define SFF_REGONLY	0x00000080L	/* regular files only */
+#define SFF_SAFEDIRPATH	0x00000100L	/* no writable directories allowed */
+#define SFF_NOHLINK	0x00000200L	/* file cannot have hard links */
+#define SFF_NOWLINK	0x00000400L	/* links only in non-writable dirs */
+#define SFF_NOGWFILES	0x00000800L	/* disallow world writable files */
+#define SFF_NOWWFILES	0x00001000L	/* disallow group writable files */
+#define SFF_OPENASROOT	0x00002000L	/* open as root instead of real user */
+#define SFF_NOLOCK	0x00004000L	/* don't lock the file */
+#define SFF_NOGRFILES	0x00008000L	/* disallow g readable files */
+#define SFF_NOWRFILES	0x00010000L	/* disallow o readable files */
+#define SFF_NOTEXCL	0x00020000L	/* creates don't need to be exclusive */
+#define SFF_EXECOK	0x00040000L	/* executable files are ok (E_SM_ISEXEC) */
+#define SFF_NORFILES	(SFF_NOGRFILES|SFF_NOWRFILES)
+
+/* pseudo-flags */
+#define SFF_NOLINK	(SFF_NOHLINK|SFF_NOSLINK)
+
+/* functions */
+extern int	safefile __P((char *, UID_T, GID_T, char *, long, int, struct stat *));
+extern int	safedirpath __P((char *, UID_T, GID_T, char *, long, int, int));
+extern int	safeopen __P((char *, int, int, long));
+extern FILE	*safefopen __P((char *, int, int, long));
+extern int	dfopen __P((char *, int, int, long));
+extern bool	filechanged __P((char *, int, struct stat *));
+
+/*
+**  DontBlameSendmail options
+**
+**	Hopefully nobody uses these.
+*/
+#define DBS_SAFE					0
+#define DBS_ASSUMESAFECHOWN				1
+#define DBS_GROUPWRITABLEDIRPATHSAFE			2
+#define DBS_GROUPWRITABLEFORWARDFILESAFE		3
+#define DBS_GROUPWRITABLEINCLUDEFILESAFE		4
+#define DBS_GROUPWRITABLEALIASFILE			5
+#define DBS_WORLDWRITABLEALIASFILE			6
+#define DBS_FORWARDFILEINUNSAFEDIRPATH			7
+#define DBS_MAPINUNSAFEDIRPATH				8
+#define DBS_LINKEDALIASFILEINWRITABLEDIR		9
+#define DBS_LINKEDCLASSFILEINWRITABLEDIR		10
+#define DBS_LINKEDFORWARDFILEINWRITABLEDIR		11
+#define DBS_LINKEDINCLUDEFILEINWRITABLEDIR		12
+#define DBS_LINKEDMAPINWRITABLEDIR			13
+#define DBS_LINKEDSERVICESWITCHFILEINWRITABLEDIR	14
+#define DBS_FILEDELIVERYTOHARDLINK			15
+#define DBS_FILEDELIVERYTOSYMLINK			16
+#define DBS_WRITEMAPTOHARDLINK				17
+#define DBS_WRITEMAPTOSYMLINK				18
+#define DBS_WRITESTATSTOHARDLINK			19
+#define DBS_WRITESTATSTOSYMLINK				20
+#define DBS_FORWARDFILEINGROUPWRITABLEDIRPATH		21
+#define DBS_INCLUDEFILEINGROUPWRITABLEDIRPATH		22
+#define DBS_CLASSFILEINUNSAFEDIRPATH			23
+#define DBS_ERRORHEADERINUNSAFEDIRPATH			24
+#define DBS_HELPFILEINUNSAFEDIRPATH			25
+#define DBS_FORWARDFILEINUNSAFEDIRPATHSAFE		26
+#define DBS_INCLUDEFILEINUNSAFEDIRPATHSAFE		27
+#define DBS_RUNPROGRAMINUNSAFEDIRPATH			28 /* Not used yet */
+#define DBS_RUNWRITABLEPROGRAM				29
+#define DBS_INCLUDEFILEINUNSAFEDIRPATH			30
+#define DBS_NONROOTSAFEADDR				31
+#define DBS_TRUSTSTICKYBIT				32
+#define DBS_DONTWARNFORWARDFILEINUNSAFEDIRPATH		33
+#define DBS_INSUFFICIENTENTROPY				34
+#if _FFR_UNSAFE_SASL
+#define DBS_GROUPREADABLESASLFILE			35
+#endif /* _FFR_UNSAFE_SASL */
+
+/* struct defining such things */
+struct dbsval
+{
+	char	*dbs_name;	/* name of DontBlameSendmail flag */
+	u_char	dbs_flag;	/* numeric level */
+};
+
+#if _FFR_DPRINTF
+extern void	dprintf __P((const char *, ...));
+extern int	dflush __P((void));
+#else /* _FFR_DPRINTF */
+#define dprintf		printf
+#define dflush()	fflush(stdout)
+#endif /* _FFR_DPRINTF */
+
+extern int	sm_snprintf __P((char *, size_t, const char *, ...));
+extern int	sm_vsnprintf __P((char *, size_t, const char *, va_list));
+extern char	*quad_to_string __P((QUAD_T));
+
+extern size_t	strlcpy __P((char *, const char *, size_t));
+extern size_t	strlcat __P((char *, const char *, size_t));
+
diff --git a/contrib/sendmail/include/sendmail/useful.h b/contrib/sendmail/include/sendmail/useful.h
new file mode 100644
index 0000000..55ba407
--- /dev/null
+++ b/contrib/sendmail/include/sendmail/useful.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 1998, 1999 Sendmail, Inc. and its suppliers.
+ *	All rights reserved.
+ * Copyright (c) 1995-1997 Eric P. Allman.  All rights reserved.
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  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: useful.h,v 8.18 1999/07/13 15:05:57 ca Exp $
+ */
+
+#ifndef _USEFUL_H
+# define _USEFUL_H
+
+# include <sys/types.h>
+
+/* support for bool type */
+typedef int	bool;
+# ifndef TRUE
+#  define TRUE	1
+#  define FALSE	0
+# endif /* ! TRUE */
+
+# ifndef NULL
+#  define NULL	0
+# endif /* ! NULL */
+
+/* bit hacking */
+# define bitset(bit, word)	(((word) & (bit)) != 0)
+
+/* some simple functions */
+# ifndef max
+#  define max(a, b)	((a) > (b) ? (a) : (b))
+#  define min(a, b)	((a) < (b) ? (a) : (b))
+# endif /* ! max */
+
+/* assertions */
+# ifndef NASSERT
+#  define ASSERT(expr, msg, parm)\
+	if (!(expr))\
+	{\
+		fprintf(stderr, "assertion botch: %s:%d: ", __FILE__, __LINE__);\
+		fprintf(stderr, msg, parm);\
+	}
+# else /* ! NASSERT */
+#  define ASSERT(expr, msg, parm)
+# endif /* ! NASSERT */
+
+/* sccs id's */
+# ifndef lint
+#  ifdef __STDC__
+#   define SCCSID(arg)	static char SccsId[] = #arg;
+#  else /* __STDC__ */
+#   define SCCSID(arg)	static char SccsId[] = "arg";
+#  endif /* __STDC__ */
+# else /* ! lint */
+#  define SCCSID(arg)
+# endif /* ! lint */
+#endif /* ! _USEFUL_H */