2382 lines
49 KiB
C
2382 lines
49 KiB
C
/*
|
||
* Copyright (c) 1983 Eric P. Allman
|
||
* Copyright (c) 1988, 1993
|
||
* The Regents of the University of California. All rights reserved.
|
||
*
|
||
* Redistribution and use in source and binary forms, with or without
|
||
* modification, are permitted provided that the following conditions
|
||
* are met:
|
||
* 1. Redistributions of source code must retain the above copyright
|
||
* notice, this list of conditions and the following disclaimer.
|
||
* 2. Redistributions in binary form must reproduce the above copyright
|
||
* notice, this list of conditions and the following disclaimer in the
|
||
* documentation and/or other materials provided with the distribution.
|
||
* 3. All advertising materials mentioning features or use of this software
|
||
* must display the following acknowledgement:
|
||
* This product includes software developed by the University of
|
||
* California, Berkeley and its contributors.
|
||
* 4. Neither the name of the University nor the names of its contributors
|
||
* may be used to endorse or promote products derived from this software
|
||
* without specific prior written permission.
|
||
*
|
||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
* SUCH DAMAGE.
|
||
*/
|
||
|
||
#ifndef lint
|
||
static char sccsid[] = "@(#)conf.c 8.89 (Berkeley) 4/18/94";
|
||
#endif /* not lint */
|
||
|
||
# include "sendmail.h"
|
||
# include "pathnames.h"
|
||
# include <sys/ioctl.h>
|
||
# include <sys/param.h>
|
||
# include <netdb.h>
|
||
# include <pwd.h>
|
||
|
||
/*
|
||
** CONF.C -- Sendmail Configuration Tables.
|
||
**
|
||
** Defines the configuration of this installation.
|
||
**
|
||
** Configuration Variables:
|
||
** HdrInfo -- a table describing well-known header fields.
|
||
** Each entry has the field name and some flags,
|
||
** which are described in sendmail.h.
|
||
**
|
||
** Notes:
|
||
** I have tried to put almost all the reasonable
|
||
** configuration information into the configuration
|
||
** file read at runtime. My intent is that anything
|
||
** here is a function of the version of UNIX you
|
||
** are running, or is really static -- for example
|
||
** the headers are a superset of widely used
|
||
** protocols. If you find yourself playing with
|
||
** this file too much, you may be making a mistake!
|
||
*/
|
||
|
||
|
||
|
||
|
||
/*
|
||
** Header info table
|
||
** Final (null) entry contains the flags used for any other field.
|
||
**
|
||
** Not all of these are actually handled specially by sendmail
|
||
** at this time. They are included as placeholders, to let
|
||
** you know that "someday" I intend to have sendmail do
|
||
** something with them.
|
||
*/
|
||
|
||
struct hdrinfo HdrInfo[] =
|
||
{
|
||
/* originator fields, most to least significant */
|
||
"resent-sender", H_FROM|H_RESENT,
|
||
"resent-from", H_FROM|H_RESENT,
|
||
"resent-reply-to", H_FROM|H_RESENT,
|
||
"sender", H_FROM,
|
||
"from", H_FROM,
|
||
"reply-to", H_FROM,
|
||
"full-name", H_ACHECK,
|
||
"return-receipt-to", H_FROM|H_RECEIPTTO,
|
||
"errors-to", H_FROM|H_ERRORSTO,
|
||
|
||
/* destination fields */
|
||
"to", H_RCPT,
|
||
"resent-to", H_RCPT|H_RESENT,
|
||
"cc", H_RCPT,
|
||
"resent-cc", H_RCPT|H_RESENT,
|
||
"bcc", H_RCPT|H_ACHECK,
|
||
"resent-bcc", H_RCPT|H_ACHECK|H_RESENT,
|
||
"apparently-to", H_RCPT,
|
||
|
||
/* message identification and control */
|
||
"message-id", 0,
|
||
"resent-message-id", H_RESENT,
|
||
"message", H_EOH,
|
||
"text", H_EOH,
|
||
|
||
/* date fields */
|
||
"date", 0,
|
||
"resent-date", H_RESENT,
|
||
|
||
/* trace fields */
|
||
"received", H_TRACE|H_FORCE,
|
||
"x400-received", H_TRACE|H_FORCE,
|
||
"via", H_TRACE|H_FORCE,
|
||
"mail-from", H_TRACE|H_FORCE,
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||
|
||
/* miscellaneous fields */
|
||
"comments", H_FORCE,
|
||
"return-path", H_FORCE|H_ACHECK,
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||
|
||
NULL, 0,
|
||
};
|
||
|
||
|
||
|
||
/*
|
||
** Location of system files/databases/etc.
|
||
*/
|
||
|
||
char *PidFile = _PATH_SENDMAILPID; /* stores daemon proc id */
|
||
|
||
|
||
|
||
/*
|
||
** Privacy values
|
||
*/
|
||
|
||
struct prival PrivacyValues[] =
|
||
{
|
||
"public", PRIV_PUBLIC,
|
||
"needmailhelo", PRIV_NEEDMAILHELO,
|
||
"needexpnhelo", PRIV_NEEDEXPNHELO,
|
||
"needvrfyhelo", PRIV_NEEDVRFYHELO,
|
||
"noexpn", PRIV_NOEXPN,
|
||
"novrfy", PRIV_NOVRFY,
|
||
"restrictmailq", PRIV_RESTRICTMAILQ,
|
||
"restrictqrun", PRIV_RESTRICTQRUN,
|
||
"authwarnings", PRIV_AUTHWARNINGS,
|
||
"noreceipts", PRIV_NORECEIPTS,
|
||
"goaway", PRIV_GOAWAY,
|
||
NULL, 0,
|
||
};
|
||
|
||
|
||
|
||
/*
|
||
** Miscellaneous stuff.
|
||
*/
|
||
|
||
int DtableSize = 50; /* max open files; reset in 4.2bsd */
|
||
|
||
|
||
/*
|
||
** Following should be config parameters (and probably will be in
|
||
** future releases). In the meantime, setting these is considered
|
||
** unsupported, and is intentionally undocumented.
|
||
*/
|
||
|
||
#ifdef BROKENSMTPPEERS
|
||
bool BrokenSmtpPeers = TRUE; /* set if you have broken SMTP peers */
|
||
#else
|
||
bool BrokenSmtpPeers = FALSE; /* set if you have broken SMTP peers */
|
||
#endif
|
||
#ifdef NOLOOPBACKCHECK
|
||
bool CheckLoopBack = FALSE; /* set to check HELO loopback */
|
||
#else
|
||
bool CheckLoopBack = TRUE; /* set to check HELO loopback */
|
||
#endif
|
||
|
||
/*
|
||
** SETDEFAULTS -- set default values
|
||
**
|
||
** Because of the way freezing is done, these must be initialized
|
||
** using direct code.
|
||
**
|
||
** Parameters:
|
||
** e -- the default envelope.
|
||
**
|
||
** Returns:
|
||
** none.
|
||
**
|
||
** Side Effects:
|
||
** Initializes a bunch of global variables to their
|
||
** default values.
|
||
*/
|
||
|
||
#define DAYS * 24 * 60 * 60
|
||
|
||
setdefaults(e)
|
||
register ENVELOPE *e;
|
||
{
|
||
SpaceSub = ' '; /* option B */
|
||
QueueLA = 8; /* option x */
|
||
RefuseLA = 12; /* option X */
|
||
WkRecipFact = 30000L; /* option y */
|
||
WkClassFact = 1800L; /* option z */
|
||
WkTimeFact = 90000L; /* option Z */
|
||
QueueFactor = WkRecipFact * 20; /* option q */
|
||
FileMode = (RealUid != geteuid()) ? 0644 : 0600;
|
||
/* option F */
|
||
DefUid = 1; /* option u */
|
||
DefGid = 1; /* option g */
|
||
CheckpointInterval = 10; /* option C */
|
||
MaxHopCount = 25; /* option h */
|
||
e->e_sendmode = SM_FORK; /* option d */
|
||
e->e_errormode = EM_PRINT; /* option e */
|
||
SevenBit = FALSE; /* option 7 */
|
||
MaxMciCache = 1; /* option k */
|
||
MciCacheTimeout = 300; /* option K */
|
||
LogLevel = 9; /* option L */
|
||
settimeouts(NULL); /* option r */
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||
TimeOuts.to_q_return = 5 DAYS; /* option T */
|
||
TimeOuts.to_q_warning = 0; /* option T */
|
||
PrivacyFlags = 0; /* option p */
|
||
setdefuser();
|
||
setupmaps();
|
||
setupmailers();
|
||
}
|
||
|
||
|
||
/*
|
||
** SETDEFUSER -- set/reset DefUser using DefUid (for initgroups())
|
||
*/
|
||
|
||
setdefuser()
|
||
{
|
||
struct passwd *defpwent;
|
||
static char defuserbuf[40];
|
||
|
||
DefUser = defuserbuf;
|
||
if ((defpwent = getpwuid(DefUid)) != NULL)
|
||
strcpy(defuserbuf, defpwent->pw_name);
|
||
else
|
||
strcpy(defuserbuf, "nobody");
|
||
}
|
||
/*
|
||
** HOST_MAP_INIT -- initialize host class structures
|
||
*/
|
||
|
||
bool
|
||
host_map_init(map, args)
|
||
MAP *map;
|
||
char *args;
|
||
{
|
||
register char *p = args;
|
||
|
||
for (;;)
|
||
{
|
||
while (isascii(*p) && isspace(*p))
|
||
p++;
|
||
if (*p != '-')
|
||
break;
|
||
switch (*++p)
|
||
{
|
||
case 'a':
|
||
map->map_app = ++p;
|
||
break;
|
||
}
|
||
while (*p != '\0' && !(isascii(*p) && isspace(*p)))
|
||
p++;
|
||
if (*p != '\0')
|
||
*p++ = '\0';
|
||
}
|
||
if (map->map_app != NULL)
|
||
map->map_app = newstr(map->map_app);
|
||
return TRUE;
|
||
}
|
||
/*
|
||
** SETUPMAILERS -- initialize default mailers
|
||
*/
|
||
|
||
setupmailers()
|
||
{
|
||
char buf[100];
|
||
|
||
strcpy(buf, "prog, P=/bin/sh, F=lsD, A=sh -c $u");
|
||
makemailer(buf);
|
||
|
||
strcpy(buf, "*file*, P=/dev/null, F=lsDFMPEu, A=FILE");
|
||
makemailer(buf);
|
||
|
||
strcpy(buf, "*include*, P=/dev/null, F=su, A=INCLUDE");
|
||
makemailer(buf);
|
||
}
|
||
/*
|
||
** SETUPMAPS -- set up map classes
|
||
*/
|
||
|
||
#define MAPDEF(name, ext, flags, parse, open, close, lookup, store) \
|
||
{ \
|
||
extern bool parse __P((MAP *, char *)); \
|
||
extern bool open __P((MAP *, int)); \
|
||
extern void close __P((MAP *)); \
|
||
extern char *lookup __P((MAP *, char *, char **, int *)); \
|
||
extern void store __P((MAP *, char *, char *)); \
|
||
s = stab(name, ST_MAPCLASS, ST_ENTER); \
|
||
s->s_mapclass.map_cname = name; \
|
||
s->s_mapclass.map_ext = ext; \
|
||
s->s_mapclass.map_cflags = flags; \
|
||
s->s_mapclass.map_parse = parse; \
|
||
s->s_mapclass.map_open = open; \
|
||
s->s_mapclass.map_close = close; \
|
||
s->s_mapclass.map_lookup = lookup; \
|
||
s->s_mapclass.map_store = store; \
|
||
}
|
||
|
||
setupmaps()
|
||
{
|
||
register STAB *s;
|
||
|
||
#ifdef NEWDB
|
||
MAPDEF("hash", ".db", MCF_ALIASOK|MCF_REBUILDABLE,
|
||
map_parseargs, hash_map_open, db_map_close,
|
||
db_map_lookup, db_map_store);
|
||
MAPDEF("btree", ".db", MCF_ALIASOK|MCF_REBUILDABLE,
|
||
map_parseargs, bt_map_open, db_map_close,
|
||
db_map_lookup, db_map_store);
|
||
#endif
|
||
|
||
#ifdef NDBM
|
||
MAPDEF("dbm", ".dir", MCF_ALIASOK|MCF_REBUILDABLE,
|
||
map_parseargs, ndbm_map_open, ndbm_map_close,
|
||
ndbm_map_lookup, ndbm_map_store);
|
||
#endif
|
||
|
||
#ifdef NIS
|
||
MAPDEF("nis", NULL, MCF_ALIASOK,
|
||
map_parseargs, nis_map_open, nis_map_close,
|
||
nis_map_lookup, nis_map_store);
|
||
#endif
|
||
|
||
MAPDEF("stab", NULL, MCF_ALIASOK|MCF_ALIASONLY,
|
||
map_parseargs, stab_map_open, stab_map_close,
|
||
stab_map_lookup, stab_map_store);
|
||
|
||
MAPDEF("implicit", NULL, MCF_ALIASOK|MCF_ALIASONLY|MCF_REBUILDABLE,
|
||
map_parseargs, impl_map_open, impl_map_close,
|
||
impl_map_lookup, impl_map_store);
|
||
|
||
/* host DNS lookup */
|
||
MAPDEF("host", NULL, 0,
|
||
host_map_init, null_map_open, null_map_close,
|
||
host_map_lookup, null_map_store);
|
||
|
||
/* dequote map */
|
||
MAPDEF("dequote", NULL, 0,
|
||
dequote_init, null_map_open, null_map_close,
|
||
dequote_map, null_map_store);
|
||
|
||
#if 0
|
||
# ifdef USERDB
|
||
/* user database */
|
||
MAPDEF("udb", ".db", 0,
|
||
udb_map_parse, null_map_open, null_map_close,
|
||
udb_map_lookup, null_map_store);
|
||
# endif
|
||
#endif
|
||
}
|
||
|
||
#undef MAPDEF
|
||
/*
|
||
** USERNAME -- return the user id of the logged in user.
|
||
**
|
||
** Parameters:
|
||
** none.
|
||
**
|
||
** Returns:
|
||
** The login name of the logged in user.
|
||
**
|
||
** Side Effects:
|
||
** none.
|
||
**
|
||
** Notes:
|
||
** The return value is statically allocated.
|
||
*/
|
||
|
||
char *
|
||
username()
|
||
{
|
||
static char *myname = NULL;
|
||
extern char *getlogin();
|
||
register struct passwd *pw;
|
||
|
||
/* cache the result */
|
||
if (myname == NULL)
|
||
{
|
||
myname = getlogin();
|
||
if (myname == NULL || myname[0] == '\0')
|
||
{
|
||
pw = getpwuid(RealUid);
|
||
if (pw != NULL)
|
||
myname = newstr(pw->pw_name);
|
||
}
|
||
else
|
||
{
|
||
uid_t uid = RealUid;
|
||
|
||
myname = newstr(myname);
|
||
if ((pw = getpwnam(myname)) == NULL ||
|
||
(uid != 0 && uid != pw->pw_uid))
|
||
{
|
||
pw = getpwuid(uid);
|
||
if (pw != NULL)
|
||
myname = newstr(pw->pw_name);
|
||
}
|
||
}
|
||
if (myname == NULL || myname[0] == '\0')
|
||
{
|
||
syserr("554 Who are you?");
|
||
myname = "postmaster";
|
||
}
|
||
}
|
||
|
||
return (myname);
|
||
}
|
||
/*
|
||
** TTYPATH -- Get the path of the user's tty
|
||
**
|
||
** Returns the pathname of the user's tty. Returns NULL if
|
||
** the user is not logged in or if s/he has write permission
|
||
** denied.
|
||
**
|
||
** Parameters:
|
||
** none
|
||
**
|
||
** Returns:
|
||
** pathname of the user's tty.
|
||
** NULL if not logged in or write permission denied.
|
||
**
|
||
** Side Effects:
|
||
** none.
|
||
**
|
||
** WARNING:
|
||
** Return value is in a local buffer.
|
||
**
|
||
** Called By:
|
||
** savemail
|
||
*/
|
||
|
||
char *
|
||
ttypath()
|
||
{
|
||
struct stat stbuf;
|
||
register char *pathn;
|
||
extern char *ttyname();
|
||
extern char *getlogin();
|
||
|
||
/* compute the pathname of the controlling tty */
|
||
if ((pathn = ttyname(2)) == NULL && (pathn = ttyname(1)) == NULL &&
|
||
(pathn = ttyname(0)) == NULL)
|
||
{
|
||
errno = 0;
|
||
return (NULL);
|
||
}
|
||
|
||
/* see if we have write permission */
|
||
if (stat(pathn, &stbuf) < 0 || !bitset(02, stbuf.st_mode))
|
||
{
|
||
errno = 0;
|
||
return (NULL);
|
||
}
|
||
|
||
/* see if the user is logged in */
|
||
if (getlogin() == NULL)
|
||
return (NULL);
|
||
|
||
/* looks good */
|
||
return (pathn);
|
||
}
|
||
/*
|
||
** CHECKCOMPAT -- check for From and To person compatible.
|
||
**
|
||
** This routine can be supplied on a per-installation basis
|
||
** to determine whether a person is allowed to send a message.
|
||
** This allows restriction of certain types of internet
|
||
** forwarding or registration of users.
|
||
**
|
||
** If the hosts are found to be incompatible, an error
|
||
** message should be given using "usrerr" and 0 should
|
||
** be returned.
|
||
**
|
||
** 'NoReturn' can be set to suppress the return-to-sender
|
||
** function; this should be done on huge messages.
|
||
**
|
||
** Parameters:
|
||
** to -- the person being sent to.
|
||
**
|
||
** Returns:
|
||
** an exit status
|
||
**
|
||
** Side Effects:
|
||
** none (unless you include the usrerr stuff)
|
||
*/
|
||
|
||
checkcompat(to, e)
|
||
register ADDRESS *to;
|
||
register ENVELOPE *e;
|
||
{
|
||
# ifdef lint
|
||
if (to == NULL)
|
||
to++;
|
||
# endif /* lint */
|
||
|
||
if (tTd(49, 1))
|
||
printf("checkcompat(to=%s, from=%s)\n",
|
||
to->q_paddr, e->e_from.q_paddr);
|
||
|
||
# ifdef EXAMPLE_CODE
|
||
/* this code is intended as an example only */
|
||
register STAB *s;
|
||
|
||
s = stab("arpa", ST_MAILER, ST_FIND);
|
||
if (s != NULL && e->e_from.q_mailer != LocalMailer &&
|
||
to->q_mailer == s->s_mailer)
|
||
{
|
||
usrerr("553 No ARPA mail through this machine: see your system administration");
|
||
/* NoReturn = TRUE; to supress return copy */
|
||
return (EX_UNAVAILABLE);
|
||
}
|
||
# endif /* EXAMPLE_CODE */
|
||
return (EX_OK);
|
||
}
|
||
/*
|
||
** SETSIGNAL -- set a signal handler
|
||
**
|
||
** This is essentially old BSD "signal(3)".
|
||
*/
|
||
|
||
sigfunc_t
|
||
setsignal(sig, handler)
|
||
int sig;
|
||
sigfunc_t handler;
|
||
{
|
||
#if defined(SYS5SIGNALS) || defined(BSD4_3) || defined(_AUX_SOURCE)
|
||
return signal(sig, handler);
|
||
#else
|
||
struct sigaction n, o;
|
||
|
||
bzero(&n, sizeof n);
|
||
n.sa_handler = handler;
|
||
if (sigaction(sig, &n, &o) < 0)
|
||
return SIG_ERR;
|
||
return o.sa_handler;
|
||
#endif
|
||
}
|
||
/*
|
||
** HOLDSIGS -- arrange to hold all signals
|
||
**
|
||
** Parameters:
|
||
** none.
|
||
**
|
||
** Returns:
|
||
** none.
|
||
**
|
||
** Side Effects:
|
||
** Arranges that signals are held.
|
||
*/
|
||
|
||
holdsigs()
|
||
{
|
||
}
|
||
/*
|
||
** RLSESIGS -- arrange to release all signals
|
||
**
|
||
** This undoes the effect of holdsigs.
|
||
**
|
||
** Parameters:
|
||
** none.
|
||
**
|
||
** Returns:
|
||
** none.
|
||
**
|
||
** Side Effects:
|
||
** Arranges that signals are released.
|
||
*/
|
||
|
||
rlsesigs()
|
||
{
|
||
}
|
||
/*
|
||
** INIT_MD -- do machine dependent initializations
|
||
**
|
||
** Systems that have global modes that should be set should do
|
||
** them here rather than in main.
|
||
*/
|
||
|
||
#ifdef _AUX_SOURCE
|
||
# include <compat.h>
|
||
#endif
|
||
|
||
init_md(argc, argv)
|
||
int argc;
|
||
char **argv;
|
||
{
|
||
#ifdef _AUX_SOURCE
|
||
setcompat(getcompat() | COMPAT_BSDPROT);
|
||
#endif
|
||
}
|
||
/*
|
||
** GETLA -- get the current load average
|
||
**
|
||
** This code stolen from la.c.
|
||
**
|
||
** Parameters:
|
||
** none.
|
||
**
|
||
** Returns:
|
||
** The current load average as an integer.
|
||
**
|
||
** Side Effects:
|
||
** none.
|
||
*/
|
||
|
||
/* try to guess what style of load average we have */
|
||
#define LA_ZERO 1 /* always return load average as zero */
|
||
#define LA_INT 2 /* read kmem for avenrun; interpret as long */
|
||
#define LA_FLOAT 3 /* read kmem for avenrun; interpret as float */
|
||
#define LA_SUBR 4 /* call getloadavg */
|
||
#define LA_MACH 5 /* MACH load averages (as on NeXT boxes) */
|
||
#define LA_SHORT 6 /* read kmem for avenrun; interpret as short */
|
||
#define LA_PROCSTR 7 /* read string ("1.17") from /proc/loadavg */
|
||
|
||
/* do guesses based on general OS type */
|
||
#ifndef LA_TYPE
|
||
# define LA_TYPE LA_ZERO
|
||
#endif
|
||
|
||
#if (LA_TYPE == LA_INT) || (LA_TYPE == LA_FLOAT) || (LA_TYPE == LA_SHORT)
|
||
|
||
#include <nlist.h>
|
||
|
||
#ifndef LA_AVENRUN
|
||
# ifdef SYSTEM5
|
||
# define LA_AVENRUN "avenrun"
|
||
# else
|
||
# define LA_AVENRUN "_avenrun"
|
||
# endif
|
||
#endif
|
||
|
||
/* _PATH_UNIX should be defined in <paths.h> */
|
||
#ifndef _PATH_UNIX
|
||
# if defined(SYSTEM5)
|
||
# define _PATH_UNIX "/unix"
|
||
# else
|
||
# define _PATH_UNIX "/kernel"
|
||
# endif
|
||
#endif
|
||
|
||
struct nlist Nl[] =
|
||
{
|
||
{ LA_AVENRUN },
|
||
#define X_AVENRUN 0
|
||
{ 0 },
|
||
};
|
||
|
||
#ifndef FSHIFT
|
||
# if defined(unixpc)
|
||
# define FSHIFT 5
|
||
# endif
|
||
|
||
# if defined(__alpha) || defined(IRIX)
|
||
# define FSHIFT 10
|
||
# endif
|
||
#endif
|
||
|
||
#ifndef FSHIFT
|
||
# define FSHIFT 8
|
||
#endif
|
||
|
||
#ifndef FSCALE
|
||
# define FSCALE (1 << FSHIFT)
|
||
#endif
|
||
|
||
getla()
|
||
{
|
||
static int kmem = -1;
|
||
#if LA_TYPE == LA_INT
|
||
long avenrun[3];
|
||
#else
|
||
# if LA_TYPE == LA_SHORT
|
||
short avenrun[3];
|
||
# else
|
||
double avenrun[3];
|
||
# endif
|
||
#endif
|
||
extern off_t lseek();
|
||
extern int errno;
|
||
|
||
if (kmem < 0)
|
||
{
|
||
kmem = open("/dev/kmem", 0, 0);
|
||
if (kmem < 0)
|
||
{
|
||
if (tTd(3, 1))
|
||
printf("getla: open(/dev/kmem): %s\n",
|
||
errstring(errno));
|
||
return (-1);
|
||
}
|
||
(void) fcntl(kmem, F_SETFD, 1);
|
||
if (nlist(_PATH_UNIX, Nl) < 0)
|
||
{
|
||
if (tTd(3, 1))
|
||
printf("getla: nlist(%s): %s\n", _PATH_UNIX,
|
||
errstring(errno));
|
||
return (-1);
|
||
}
|
||
if (Nl[X_AVENRUN].n_value == 0)
|
||
{
|
||
if (tTd(3, 1))
|
||
printf("getla: nlist(%s, %s) ==> 0\n",
|
||
_PATH_UNIX, LA_AVENRUN);
|
||
return (-1);
|
||
}
|
||
#ifdef IRIX
|
||
Nl[X_AVENRUN].n_value &= 0x7fffffff;
|
||
#endif
|
||
}
|
||
if (tTd(3, 20))
|
||
printf("getla: symbol address = %#x\n", Nl[X_AVENRUN].n_value);
|
||
if (lseek(kmem, (off_t) Nl[X_AVENRUN].n_value, 0) == -1 ||
|
||
read(kmem, (char *) avenrun, sizeof(avenrun)) < sizeof(avenrun))
|
||
{
|
||
/* thank you Ian */
|
||
if (tTd(3, 1))
|
||
printf("getla: lseek or read: %s\n", errstring(errno));
|
||
return (-1);
|
||
}
|
||
#if (LA_TYPE == LA_INT) || (LA_TYPE == LA_SHORT)
|
||
if (tTd(3, 5))
|
||
{
|
||
printf("getla: avenrun = %d", avenrun[0]);
|
||
if (tTd(3, 15))
|
||
printf(", %d, %d", avenrun[1], avenrun[2]);
|
||
printf("\n");
|
||
}
|
||
if (tTd(3, 1))
|
||
printf("getla: %d\n", (int) (avenrun[0] + FSCALE/2) >> FSHIFT);
|
||
return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT);
|
||
#else
|
||
if (tTd(3, 5))
|
||
{
|
||
printf("getla: avenrun = %g", avenrun[0]);
|
||
if (tTd(3, 15))
|
||
printf(", %g, %g", avenrun[1], avenrun[2]);
|
||
printf("\n");
|
||
}
|
||
if (tTd(3, 1))
|
||
printf("getla: %d\n", (int) (avenrun[0] +0.5));
|
||
return ((int) (avenrun[0] + 0.5));
|
||
#endif
|
||
}
|
||
|
||
#else
|
||
#if LA_TYPE == LA_SUBR
|
||
|
||
#ifdef DGUX
|
||
|
||
#include <sys/dg_sys_info.h>
|
||
|
||
int getla()
|
||
{
|
||
struct dg_sys_info_load_info load_info;
|
||
|
||
dg_sys_info((long *)&load_info,
|
||
DG_SYS_INFO_LOAD_INFO_TYPE, DG_SYS_INFO_LOAD_VERSION_0);
|
||
|
||
return((int) (load_info.one_minute + 0.5));
|
||
}
|
||
|
||
#else
|
||
|
||
getla()
|
||
{
|
||
double avenrun[3];
|
||
|
||
if (getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0])) < 0)
|
||
{
|
||
if (tTd(3, 1))
|
||
perror("getla: getloadavg failed:");
|
||
return (-1);
|
||
}
|
||
if (tTd(3, 1))
|
||
printf("getla: %d\n", (int) (avenrun[0] +0.5));
|
||
return ((int) (avenrun[0] + 0.5));
|
||
}
|
||
|
||
#endif /* DGUX */
|
||
#else
|
||
#if LA_TYPE == LA_MACH
|
||
|
||
/*
|
||
** This has been tested on NEXTSTEP release 2.1/3.X.
|
||
*/
|
||
|
||
#if defined(NX_CURRENT_COMPILER_RELEASE) && NX_CURRENT_COMPILER_RELEASE > NX_COMPILER_RELEASE_3_0
|
||
# include <mach/mach.h>
|
||
#else
|
||
# include <mach.h>
|
||
#endif
|
||
|
||
getla()
|
||
{
|
||
processor_set_t default_set;
|
||
kern_return_t error;
|
||
unsigned int info_count;
|
||
struct processor_set_basic_info info;
|
||
host_t host;
|
||
|
||
error = processor_set_default(host_self(), &default_set);
|
||
if (error != KERN_SUCCESS)
|
||
return -1;
|
||
info_count = PROCESSOR_SET_BASIC_INFO_COUNT;
|
||
if (processor_set_info(default_set, PROCESSOR_SET_BASIC_INFO,
|
||
&host, (processor_set_info_t)&info,
|
||
&info_count) != KERN_SUCCESS)
|
||
{
|
||
return -1;
|
||
}
|
||
return (int) (info.load_average + (LOAD_SCALE / 2)) / LOAD_SCALE;
|
||
}
|
||
|
||
|
||
#else
|
||
#if LA_TYPE == LA_PROCSTR
|
||
|
||
/*
|
||
** Read /proc/loadavg for the load average. This is assumed to be
|
||
** in a format like "0.15 0.12 0.06".
|
||
**
|
||
** Initially intended for Linux. This has been in the kernel
|
||
** since at least 0.99.15.
|
||
*/
|
||
|
||
# ifndef _PATH_LOADAVG
|
||
# define _PATH_LOADAVG "/proc/loadavg"
|
||
# endif
|
||
|
||
int
|
||
getla()
|
||
{
|
||
double avenrun;
|
||
register int result;
|
||
FILE *fp;
|
||
|
||
fp = fopen(_PATH_LOADAVG, "r");
|
||
if (fp == NULL)
|
||
{
|
||
if (tTd(3, 1))
|
||
printf("getla: fopen(%s): %s\n",
|
||
_PATH_LOADAVG, errstring(errno));
|
||
return -1;
|
||
}
|
||
result = fscanf(fp, "%lf", &avenrun);
|
||
fclose(fp);
|
||
if (result != 1)
|
||
{
|
||
if (tTd(3, 1))
|
||
printf("getla: fscanf() = %d: %s\n",
|
||
result, errstring(errno));
|
||
return -1;
|
||
}
|
||
|
||
if (tTd(3, 1))
|
||
printf("getla(): %.2f\n", avenrun);
|
||
|
||
return ((int) (avenrun + 0.5));
|
||
}
|
||
|
||
#else
|
||
|
||
getla()
|
||
{
|
||
if (tTd(3, 1))
|
||
printf("getla: ZERO\n");
|
||
return (0);
|
||
}
|
||
|
||
#endif
|
||
#endif
|
||
#endif
|
||
#endif
|
||
|
||
|
||
/*
|
||
* Copyright 1989 Massachusetts Institute of Technology
|
||
*
|
||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||
* documentation for any purpose is hereby granted without fee, provided that
|
||
* the above copyright notice appear in all copies and that both that
|
||
* copyright notice and this permission notice appear in supporting
|
||
* documentation, and that the name of M.I.T. not be used in advertising or
|
||
* publicity pertaining to distribution of the software without specific,
|
||
* written prior permission. M.I.T. makes no representations about the
|
||
* suitability of this software for any purpose. It is provided "as is"
|
||
* without express or implied warranty.
|
||
*
|
||
* M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
|
||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
|
||
* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||
*
|
||
* Authors: Many and varied...
|
||
*/
|
||
|
||
/* Non Apollo stuff removed by Don Lewis 11/15/93 */
|
||
#ifndef lint
|
||
static char rcsid[] = "@(#)$Id: getloadavg.c,v 1.16 1991/06/21 12:51:15 paul Exp $";
|
||
#endif /* !lint */
|
||
|
||
#ifdef apollo
|
||
# undef volatile
|
||
# include <apollo/base.h>
|
||
|
||
/* ARGSUSED */
|
||
int getloadavg( call_data )
|
||
caddr_t call_data; /* pointer to (double) return value */
|
||
{
|
||
double *avenrun = (double *) call_data;
|
||
int i;
|
||
status_$t st;
|
||
long loadav[3];
|
||
proc1_$get_loadav(loadav, &st);
|
||
*avenrun = loadav[0] / (double) (1 << 16);
|
||
return(0);
|
||
}
|
||
# endif /* apollo */
|
||
/*
|
||
** SHOULDQUEUE -- should this message be queued or sent?
|
||
**
|
||
** Compares the message cost to the load average to decide.
|
||
**
|
||
** Parameters:
|
||
** pri -- the priority of the message in question.
|
||
** ctime -- the message creation time.
|
||
**
|
||
** Returns:
|
||
** TRUE -- if this message should be queued up for the
|
||
** time being.
|
||
** FALSE -- if the load is low enough to send this message.
|
||
**
|
||
** Side Effects:
|
||
** none.
|
||
*/
|
||
|
||
bool
|
||
shouldqueue(pri, ctime)
|
||
long pri;
|
||
time_t ctime;
|
||
{
|
||
if (CurrentLA < QueueLA)
|
||
return (FALSE);
|
||
if (CurrentLA >= RefuseLA)
|
||
return (TRUE);
|
||
return (pri > (QueueFactor / (CurrentLA - QueueLA + 1)));
|
||
}
|
||
/*
|
||
** REFUSECONNECTIONS -- decide if connections should be refused
|
||
**
|
||
** Parameters:
|
||
** none.
|
||
**
|
||
** Returns:
|
||
** TRUE if incoming SMTP connections should be refused
|
||
** (for now).
|
||
** FALSE if we should accept new work.
|
||
**
|
||
** Side Effects:
|
||
** none.
|
||
*/
|
||
|
||
bool
|
||
refuseconnections()
|
||
{
|
||
#ifdef XLA
|
||
if (!xla_smtp_ok())
|
||
return TRUE;
|
||
#endif
|
||
|
||
/* this is probably too simplistic */
|
||
return (CurrentLA >= RefuseLA);
|
||
}
|
||
/*
|
||
** SETPROCTITLE -- set process title for ps
|
||
**
|
||
** Parameters:
|
||
** fmt -- a printf style format string.
|
||
** a, b, c -- possible parameters to fmt.
|
||
**
|
||
** Returns:
|
||
** none.
|
||
**
|
||
** Side Effects:
|
||
** Clobbers argv of our main procedure so ps(1) will
|
||
** display the title.
|
||
*/
|
||
|
||
#ifdef SETPROCTITLE
|
||
# ifdef HASSETPROCTITLE
|
||
*** ERROR *** Cannot have both SETPROCTITLE and HASSETPROCTITLE defined
|
||
# endif
|
||
# ifdef __hpux
|
||
# include <sys/pstat.h>
|
||
# endif
|
||
# ifdef BSD4_4
|
||
# include <machine/vmparam.h>
|
||
# include <sys/exec.h>
|
||
# ifdef __bsdi__
|
||
# undef PS_STRINGS /* BSDI 1.0 doesn't do PS_STRINGS as we expect */
|
||
# define PROCTITLEPAD '\0'
|
||
# endif
|
||
# ifdef __FreeBSD__
|
||
# undef PS_STRINGS /* XXX This is broken due to needing<machine/pmap.h> */
|
||
# define PROCTITLEPAD '\0'
|
||
# endif
|
||
# ifdef PS_STRINGS
|
||
# define SETPROC_STATIC static
|
||
# endif
|
||
# endif
|
||
# ifndef SETPROC_STATIC
|
||
# define SETPROC_STATIC
|
||
# endif
|
||
#endif
|
||
|
||
#ifndef PROCTITLEPAD
|
||
# define PROCTITLEPAD ' '
|
||
#endif
|
||
|
||
#ifndef HASSETPROCTITLE
|
||
|
||
/*VARARGS1*/
|
||
#ifdef __STDC__
|
||
setproctitle(char *fmt, ...)
|
||
#else
|
||
setproctitle(fmt, va_alist)
|
||
char *fmt;
|
||
va_dcl
|
||
#endif
|
||
{
|
||
# ifdef SETPROCTITLE
|
||
register char *p;
|
||
register int i;
|
||
SETPROC_STATIC char buf[MAXLINE];
|
||
VA_LOCAL_DECL
|
||
# ifdef __hpux
|
||
union pstun pst;
|
||
# endif
|
||
extern char **Argv;
|
||
extern char *LastArgv;
|
||
|
||
p = buf;
|
||
|
||
/* print sendmail: heading for grep */
|
||
(void) strcpy(p, "sendmail: ");
|
||
p += strlen(p);
|
||
|
||
/* print the argument string */
|
||
VA_START(fmt);
|
||
(void) vsprintf(p, fmt, ap);
|
||
VA_END;
|
||
|
||
i = strlen(buf);
|
||
|
||
# ifdef __hpux
|
||
pst.pst_command = buf;
|
||
pstat(PSTAT_SETCMD, pst, i, 0, 0);
|
||
# else
|
||
# ifdef PS_STRINGS
|
||
PS_STRINGS->ps_nargvstr = 1;
|
||
PS_STRINGS->ps_argvstr = buf;
|
||
# else
|
||
if (i > LastArgv - Argv[0] - 2)
|
||
{
|
||
i = LastArgv - Argv[0] - 2;
|
||
buf[i] = '\0';
|
||
}
|
||
(void) strcpy(Argv[0], buf);
|
||
p = &Argv[0][i];
|
||
while (p < LastArgv)
|
||
*p++ = PROCTITLEPAD;
|
||
# endif
|
||
# endif
|
||
# endif /* SETPROCTITLE */
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** REAPCHILD -- pick up the body of my child, lest it become a zombie
|
||
**
|
||
** Parameters:
|
||
** none.
|
||
**
|
||
** Returns:
|
||
** none.
|
||
**
|
||
** Side Effects:
|
||
** Picks up extant zombies.
|
||
*/
|
||
|
||
void
|
||
reapchild()
|
||
{
|
||
int olderrno = errno;
|
||
# ifdef HASWAITPID
|
||
auto int status;
|
||
int count;
|
||
int pid;
|
||
|
||
count = 0;
|
||
while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
|
||
{
|
||
if (count++ > 1000)
|
||
{
|
||
#ifdef LOG
|
||
syslog(LOG_ALERT, "reapchild: waitpid loop: pid=%d, status=%x",
|
||
pid, status);
|
||
#endif
|
||
break;
|
||
}
|
||
}
|
||
# else
|
||
# ifdef WNOHANG
|
||
union wait status;
|
||
|
||
while (wait3(&status, WNOHANG, (struct rusage *) NULL) > 0)
|
||
continue;
|
||
# else /* WNOHANG */
|
||
auto int status;
|
||
|
||
while (wait(&status) > 0)
|
||
continue;
|
||
# endif /* WNOHANG */
|
||
# endif
|
||
# ifdef SYS5SIGNALS
|
||
(void) setsignal(SIGCHLD, reapchild);
|
||
# endif
|
||
errno = olderrno;
|
||
}
|
||
/*
|
||
** UNSETENV -- remove a variable from the environment
|
||
**
|
||
** Not needed on newer systems.
|
||
**
|
||
** Parameters:
|
||
** name -- the string name of the environment variable to be
|
||
** deleted from the current environment.
|
||
**
|
||
** Returns:
|
||
** none.
|
||
**
|
||
** Globals:
|
||
** environ -- a pointer to the current environment.
|
||
**
|
||
** Side Effects:
|
||
** Modifies environ.
|
||
*/
|
||
|
||
#ifndef HASUNSETENV
|
||
|
||
void
|
||
unsetenv(name)
|
||
char *name;
|
||
{
|
||
extern char **environ;
|
||
register char **pp;
|
||
int len = strlen(name);
|
||
|
||
for (pp = environ; *pp != NULL; pp++)
|
||
{
|
||
if (strncmp(name, *pp, len) == 0 &&
|
||
((*pp)[len] == '=' || (*pp)[len] == '\0'))
|
||
break;
|
||
}
|
||
|
||
for (; *pp != NULL; pp++)
|
||
*pp = pp[1];
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** GETDTABLESIZE -- return number of file descriptors
|
||
**
|
||
** Only on non-BSD systems
|
||
**
|
||
** Parameters:
|
||
** none
|
||
**
|
||
** Returns:
|
||
** size of file descriptor table
|
||
**
|
||
** Side Effects:
|
||
** none
|
||
*/
|
||
|
||
#ifdef SOLARIS
|
||
# include <sys/resource.h>
|
||
#endif
|
||
|
||
int
|
||
getdtsize()
|
||
{
|
||
#ifdef RLIMIT_NOFILE
|
||
struct rlimit rl;
|
||
|
||
if (getrlimit(RLIMIT_NOFILE, &rl) >= 0)
|
||
return rl.rlim_cur;
|
||
#endif
|
||
|
||
# ifdef HASGETDTABLESIZE
|
||
return getdtablesize();
|
||
# else
|
||
# ifdef _SC_OPEN_MAX
|
||
return sysconf(_SC_OPEN_MAX);
|
||
# else
|
||
return NOFILE;
|
||
# endif
|
||
# endif
|
||
}
|
||
/*
|
||
** UNAME -- get the UUCP name of this system.
|
||
*/
|
||
|
||
#ifndef HASUNAME
|
||
|
||
int
|
||
uname(name)
|
||
struct utsname *name;
|
||
{
|
||
FILE *file;
|
||
char *n;
|
||
|
||
name->nodename[0] = '\0';
|
||
|
||
/* try /etc/whoami -- one line with the node name */
|
||
if ((file = fopen("/etc/whoami", "r")) != NULL)
|
||
{
|
||
(void) fgets(name->nodename, NODE_LENGTH + 1, file);
|
||
(void) fclose(file);
|
||
n = strchr(name->nodename, '\n');
|
||
if (n != NULL)
|
||
*n = '\0';
|
||
if (name->nodename[0] != '\0')
|
||
return (0);
|
||
}
|
||
|
||
/* try /usr/include/whoami.h -- has a #define somewhere */
|
||
if ((file = fopen("/usr/include/whoami.h", "r")) != NULL)
|
||
{
|
||
char buf[MAXLINE];
|
||
|
||
while (fgets(buf, MAXLINE, file) != NULL)
|
||
if (sscanf(buf, "#define sysname \"%*[^\"]\"",
|
||
NODE_LENGTH, name->nodename) > 0)
|
||
break;
|
||
(void) fclose(file);
|
||
if (name->nodename[0] != '\0')
|
||
return (0);
|
||
}
|
||
|
||
#ifdef TRUST_POPEN
|
||
/*
|
||
** Popen is known to have security holes.
|
||
*/
|
||
|
||
/* try uuname -l to return local name */
|
||
if ((file = popen("uuname -l", "r")) != NULL)
|
||
{
|
||
(void) fgets(name, NODE_LENGTH + 1, file);
|
||
(void) pclose(file);
|
||
n = strchr(name, '\n');
|
||
if (n != NULL)
|
||
*n = '\0';
|
||
if (name->nodename[0] != '\0')
|
||
return (0);
|
||
}
|
||
#endif
|
||
|
||
return (-1);
|
||
}
|
||
#endif /* HASUNAME */
|
||
/*
|
||
** INITGROUPS -- initialize groups
|
||
**
|
||
** Stub implementation for System V style systems
|
||
*/
|
||
|
||
#ifndef HASINITGROUPS
|
||
|
||
initgroups(name, basegid)
|
||
char *name;
|
||
int basegid;
|
||
{
|
||
return 0;
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** SETSID -- set session id (for non-POSIX systems)
|
||
*/
|
||
|
||
#ifndef HASSETSID
|
||
|
||
pid_t
|
||
setsid __P ((void))
|
||
{
|
||
#ifdef TIOCNOTTY
|
||
int fd;
|
||
|
||
fd = open("/dev/tty", O_RDWR, 0);
|
||
if (fd >= 0)
|
||
{
|
||
(void) ioctl(fd, (int) TIOCNOTTY, (char *) 0);
|
||
(void) close(fd);
|
||
}
|
||
#endif /* TIOCNOTTY */
|
||
# ifdef SYS5SETPGRP
|
||
return setpgrp();
|
||
# else
|
||
return setpgid(0, getpid());
|
||
# endif
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** FSYNC -- dummy fsync
|
||
*/
|
||
|
||
#ifdef NEEDFSYNC
|
||
|
||
fsync(fd)
|
||
int fd;
|
||
{
|
||
# ifdef O_SYNC
|
||
return fcntl(fd, F_SETFL, O_SYNC);
|
||
# else
|
||
/* nothing we can do */
|
||
return 0;
|
||
# endif
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** DGUX_INET_ADDR -- inet_addr for DG/UX
|
||
**
|
||
** Data General DG/UX version of inet_addr returns a struct in_addr
|
||
** instead of a long. This patches things.
|
||
*/
|
||
|
||
#ifdef DGUX
|
||
|
||
#undef inet_addr
|
||
|
||
long
|
||
dgux_inet_addr(host)
|
||
char *host;
|
||
{
|
||
struct in_addr haddr;
|
||
|
||
haddr = inet_addr(host);
|
||
return haddr.s_addr;
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** GETOPT -- for old systems or systems with bogus implementations
|
||
*/
|
||
|
||
#ifdef NEEDGETOPT
|
||
|
||
/*
|
||
* Copyright (c) 1985 Regents of the University of California.
|
||
* All rights reserved. The Berkeley software License Agreement
|
||
* specifies the terms and conditions for redistribution.
|
||
*/
|
||
|
||
|
||
/*
|
||
** this version hacked to add `atend' flag to allow state machine
|
||
** to reset if invoked by the program to scan args for a 2nd time
|
||
*/
|
||
|
||
#if defined(LIBC_SCCS) && !defined(lint)
|
||
static char sccsid[] = "@(#)getopt.c 4.3 (Berkeley) 3/9/86";
|
||
#endif /* LIBC_SCCS and not lint */
|
||
|
||
#include <stdio.h>
|
||
|
||
/*
|
||
* get option letter from argument vector
|
||
*/
|
||
#ifdef _CONVEX_SOURCE
|
||
extern int optind, opterr;
|
||
#else
|
||
int opterr = 1; /* if error message should be printed */
|
||
int optind = 1; /* index into parent argv vector */
|
||
#endif
|
||
int optopt; /* character checked for validity */
|
||
char *optarg; /* argument associated with option */
|
||
|
||
#define BADCH (int)'?'
|
||
#define EMSG ""
|
||
#define tell(s) if (opterr) {fputs(*nargv,stderr);fputs(s,stderr); \
|
||
fputc(optopt,stderr);fputc('\n',stderr);return(BADCH);}
|
||
|
||
getopt(nargc,nargv,ostr)
|
||
int nargc;
|
||
char *const *nargv;
|
||
const char *ostr;
|
||
{
|
||
static char *place = EMSG; /* option letter processing */
|
||
static char atend = 0;
|
||
register char *oli; /* option letter list index */
|
||
|
||
if (atend) {
|
||
atend = 0;
|
||
place = EMSG;
|
||
}
|
||
if(!*place) { /* update scanning pointer */
|
||
if (optind >= nargc || *(place = nargv[optind]) != '-' || !*++place) {
|
||
atend++;
|
||
return(EOF);
|
||
}
|
||
if (*place == '-') { /* found "--" */
|
||
++optind;
|
||
atend++;
|
||
return(EOF);
|
||
}
|
||
} /* option letter okay? */
|
||
if ((optopt = (int)*place++) == (int)':' || !(oli = strchr(ostr,optopt))) {
|
||
if (!*place) ++optind;
|
||
tell(": illegal option -- ");
|
||
}
|
||
if (*++oli != ':') { /* don't need argument */
|
||
optarg = NULL;
|
||
if (!*place) ++optind;
|
||
}
|
||
else { /* need an argument */
|
||
if (*place) optarg = place; /* no white space */
|
||
else if (nargc <= ++optind) { /* no arg */
|
||
place = EMSG;
|
||
tell(": option requires an argument -- ");
|
||
}
|
||
else optarg = nargv[optind]; /* white space */
|
||
place = EMSG;
|
||
++optind;
|
||
}
|
||
return(optopt); /* dump back option letter */
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** VFPRINTF, VSPRINTF -- for old 4.3 BSD systems missing a real version
|
||
*/
|
||
|
||
#ifdef NEEDVPRINTF
|
||
|
||
#define MAXARG 16
|
||
|
||
vfprintf(fp, fmt, ap)
|
||
FILE * fp;
|
||
char * fmt;
|
||
char ** ap;
|
||
{
|
||
char * bp[MAXARG];
|
||
int i = 0;
|
||
|
||
while (*ap && i < MAXARG)
|
||
bp[i++] = *ap++;
|
||
fprintf(fp, fmt, bp[0], bp[1], bp[2], bp[3],
|
||
bp[4], bp[5], bp[6], bp[7],
|
||
bp[8], bp[9], bp[10], bp[11],
|
||
bp[12], bp[13], bp[14], bp[15]);
|
||
}
|
||
|
||
vsprintf(s, fmt, ap)
|
||
char * s;
|
||
char * fmt;
|
||
char ** ap;
|
||
{
|
||
char * bp[MAXARG];
|
||
int i = 0;
|
||
|
||
while (*ap && i < MAXARG)
|
||
bp[i++] = *ap++;
|
||
sprintf(s, fmt, bp[0], bp[1], bp[2], bp[3],
|
||
bp[4], bp[5], bp[6], bp[7],
|
||
bp[8], bp[9], bp[10], bp[11],
|
||
bp[12], bp[13], bp[14], bp[15]);
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** USERSHELLOK -- tell if a user's shell is ok for unrestricted use
|
||
**
|
||
** Parameters:
|
||
** shell -- the user's shell from /etc/passwd
|
||
**
|
||
** Returns:
|
||
** TRUE -- if it is ok to use this for unrestricted access.
|
||
** FALSE -- if the shell is restricted.
|
||
*/
|
||
|
||
#if !HASGETUSERSHELL
|
||
|
||
# ifndef _PATH_SHELLS
|
||
# define _PATH_SHELLS "/etc/shells"
|
||
# endif
|
||
|
||
char *DefaultUserShells[] =
|
||
{
|
||
"/bin/sh",
|
||
"/usr/bin/sh",
|
||
"/bin/csh",
|
||
"/usr/bin/csh",
|
||
#ifdef __hpux
|
||
"/bin/rsh",
|
||
"/bin/ksh",
|
||
"/bin/rksh",
|
||
"/bin/pam",
|
||
"/usr/bin/keysh",
|
||
"/bin/posix/sh",
|
||
#endif
|
||
NULL
|
||
};
|
||
|
||
#endif
|
||
|
||
#define WILDCARD_SHELL "/SENDMAIL/ANY/SHELL/"
|
||
|
||
bool
|
||
usershellok(shell)
|
||
char *shell;
|
||
{
|
||
#if HASGETUSERSHELL
|
||
register char *p;
|
||
extern char *getusershell();
|
||
|
||
setusershell();
|
||
while ((p = getusershell()) != NULL)
|
||
if (strcmp(p, shell) == 0 || strcmp(p, WILDCARD_SHELL) == 0)
|
||
break;
|
||
endusershell();
|
||
return p != NULL;
|
||
#else
|
||
register FILE *shellf;
|
||
char buf[MAXLINE];
|
||
|
||
shellf = fopen(_PATH_SHELLS, "r");
|
||
if (shellf == NULL)
|
||
{
|
||
/* no /etc/shells; see if it is one of the std shells */
|
||
char **d;
|
||
|
||
for (d = DefaultUserShells; *d != NULL; d++)
|
||
{
|
||
if (strcmp(shell, *d) == 0)
|
||
return TRUE;
|
||
}
|
||
return FALSE;
|
||
}
|
||
|
||
while (fgets(buf, sizeof buf, shellf) != NULL)
|
||
{
|
||
register char *p, *q;
|
||
|
||
p = buf;
|
||
while (*p != '\0' && *p != '#' && *p != '/')
|
||
p++;
|
||
if (*p == '#' || *p == '\0')
|
||
continue;
|
||
q = p;
|
||
while (*p != '\0' && *p != '#' && !isspace(*p))
|
||
p++;
|
||
*p = '\0';
|
||
if (strcmp(shell, q) == 0 || strcmp(WILDCARD_SHELL, q) == 0)
|
||
{
|
||
fclose(shellf);
|
||
return TRUE;
|
||
}
|
||
}
|
||
fclose(shellf);
|
||
return FALSE;
|
||
#endif
|
||
}
|
||
/*
|
||
** FREESPACE -- see how much free space is on the queue filesystem
|
||
**
|
||
** Only implemented if you have statfs.
|
||
**
|
||
** Parameters:
|
||
** dir -- the directory in question.
|
||
** bsize -- a variable into which the filesystem
|
||
** block size is stored.
|
||
**
|
||
** Returns:
|
||
** The number of bytes free on the queue filesystem.
|
||
** -1 if the statfs call fails.
|
||
**
|
||
** Side effects:
|
||
** Puts the filesystem block size into bsize.
|
||
*/
|
||
|
||
/* statfs types */
|
||
#define SFS_NONE 0 /* no statfs implementation */
|
||
#define SFS_USTAT 1 /* use ustat */
|
||
#define SFS_4ARGS 2 /* use four-argument statfs call */
|
||
#define SFS_VFS 3 /* use <sys/vfs.h> implementation */
|
||
#define SFS_MOUNT 4 /* use <sys/mount.h> implementation */
|
||
#define SFS_STATFS 5 /* use <sys/statfs.h> implementation */
|
||
#define SFS_STATVFS 6 /* use <sys/statvfs.h> implementation */
|
||
|
||
#ifndef SFS_TYPE
|
||
# define SFS_TYPE SFS_NONE
|
||
#endif
|
||
|
||
#if SFS_TYPE == SFS_USTAT
|
||
# include <ustat.h>
|
||
#endif
|
||
#if SFS_TYPE == SFS_4ARGS || SFS_TYPE == SFS_STATFS
|
||
# include <sys/statfs.h>
|
||
#endif
|
||
#if SFS_TYPE == SFS_VFS
|
||
# include <sys/vfs.h>
|
||
#endif
|
||
#if SFS_TYPE == SFS_MOUNT
|
||
# include <sys/mount.h>
|
||
#endif
|
||
#if SFS_TYPE == SFS_STATVFS
|
||
# include <sys/statvfs.h>
|
||
#endif
|
||
|
||
long
|
||
freespace(dir, bsize)
|
||
char *dir;
|
||
long *bsize;
|
||
{
|
||
#if SFS_TYPE != SFS_NONE
|
||
# if SFS_TYPE == SFS_USTAT
|
||
struct ustat fs;
|
||
struct stat statbuf;
|
||
# define FSBLOCKSIZE DEV_BSIZE
|
||
# define f_bavail f_tfree
|
||
# else
|
||
# if defined(ultrix)
|
||
struct fs_data fs;
|
||
# define f_bavail fd_bfreen
|
||
# define FSBLOCKSIZE fs.fd_bsize
|
||
# else
|
||
# if SFS_TYPE == SFS_STATVFS
|
||
struct statvfs fs;
|
||
# define FSBLOCKSIZE fs.f_bsize
|
||
# else
|
||
struct statfs fs;
|
||
# define FSBLOCKSIZE fs.f_bsize
|
||
# if defined(_SCO_unix_) || defined(IRIX) || defined(apollo)
|
||
# define f_bavail f_bfree
|
||
# endif
|
||
# endif
|
||
# endif
|
||
# endif
|
||
extern int errno;
|
||
|
||
# if SFS_TYPE == SFS_USTAT
|
||
if (stat(dir, &statbuf) == 0 && ustat(statbuf.st_dev, &fs) == 0)
|
||
# else
|
||
# if SFS_TYPE == SFS_4ARGS
|
||
if (statfs(dir, &fs, sizeof fs, 0) == 0)
|
||
# else
|
||
# if defined(ultrix)
|
||
if (statfs(dir, &fs) > 0)
|
||
# else
|
||
if (statfs(dir, &fs) == 0)
|
||
# endif
|
||
# endif
|
||
# endif
|
||
{
|
||
if (bsize != NULL)
|
||
*bsize = FSBLOCKSIZE;
|
||
return (fs.f_bavail);
|
||
}
|
||
#endif
|
||
return (-1);
|
||
}
|
||
/*
|
||
** ENOUGHSPACE -- check to see if there is enough free space on the queue fs
|
||
**
|
||
** Only implemented if you have statfs.
|
||
**
|
||
** Parameters:
|
||
** msize -- the size to check against. If zero, we don't yet
|
||
** know how big the message will be, so just check for
|
||
** a "reasonable" amount.
|
||
**
|
||
** Returns:
|
||
** TRUE if there is enough space.
|
||
** FALSE otherwise.
|
||
*/
|
||
|
||
bool
|
||
enoughspace(msize)
|
||
long msize;
|
||
{
|
||
long bfree, bsize;
|
||
|
||
if (MinBlocksFree <= 0 && msize <= 0)
|
||
{
|
||
if (tTd(4, 80))
|
||
printf("enoughspace: no threshold\n");
|
||
return TRUE;
|
||
}
|
||
|
||
if ((bfree = freespace(QueueDir, &bsize)) >= 0)
|
||
{
|
||
if (tTd(4, 80))
|
||
printf("enoughspace: bavail=%ld, need=%ld\n",
|
||
bfree, msize);
|
||
|
||
/* convert msize to block count */
|
||
msize = msize / bsize + 1;
|
||
if (MinBlocksFree >= 0)
|
||
msize += MinBlocksFree;
|
||
|
||
if (bfree < msize)
|
||
{
|
||
#ifdef LOG
|
||
if (LogLevel > 0)
|
||
syslog(LOG_ALERT,
|
||
"%s: low on space (have %ld, %s needs %ld in %s)",
|
||
CurEnv->e_id, bfree,
|
||
CurHostName, msize, QueueDir);
|
||
#endif
|
||
return FALSE;
|
||
}
|
||
}
|
||
else if (tTd(4, 80))
|
||
printf("enoughspace failure: min=%ld, need=%ld: %s\n",
|
||
MinBlocksFree, msize, errstring(errno));
|
||
return TRUE;
|
||
}
|
||
/*
|
||
** TRANSIENTERROR -- tell if an error code indicates a transient failure
|
||
**
|
||
** This looks at an errno value and tells if this is likely to
|
||
** go away if retried later.
|
||
**
|
||
** Parameters:
|
||
** err -- the errno code to classify.
|
||
**
|
||
** Returns:
|
||
** TRUE if this is probably transient.
|
||
** FALSE otherwise.
|
||
*/
|
||
|
||
bool
|
||
transienterror(err)
|
||
int err;
|
||
{
|
||
switch (err)
|
||
{
|
||
case EIO: /* I/O error */
|
||
case ENXIO: /* Device not configured */
|
||
case EAGAIN: /* Resource temporarily unavailable */
|
||
case ENOMEM: /* Cannot allocate memory */
|
||
case ENODEV: /* Operation not supported by device */
|
||
case ENFILE: /* Too many open files in system */
|
||
case EMFILE: /* Too many open files */
|
||
case ENOSPC: /* No space left on device */
|
||
#ifdef ETIMEDOUT
|
||
case ETIMEDOUT: /* Connection timed out */
|
||
#endif
|
||
#ifdef ESTALE
|
||
case ESTALE: /* Stale NFS file handle */
|
||
#endif
|
||
#ifdef ENETDOWN
|
||
case ENETDOWN: /* Network is down */
|
||
#endif
|
||
#ifdef ENETUNREACH
|
||
case ENETUNREACH: /* Network is unreachable */
|
||
#endif
|
||
#ifdef ENETRESET
|
||
case ENETRESET: /* Network dropped connection on reset */
|
||
#endif
|
||
#ifdef ECONNABORTED
|
||
case ECONNABORTED: /* Software caused connection abort */
|
||
#endif
|
||
#ifdef ECONNRESET
|
||
case ECONNRESET: /* Connection reset by peer */
|
||
#endif
|
||
#ifdef ENOBUFS
|
||
case ENOBUFS: /* No buffer space available */
|
||
#endif
|
||
#ifdef ESHUTDOWN
|
||
case ESHUTDOWN: /* Can't send after socket shutdown */
|
||
#endif
|
||
#ifdef ECONNREFUSED
|
||
case ECONNREFUSED: /* Connection refused */
|
||
#endif
|
||
#ifdef EHOSTDOWN
|
||
case EHOSTDOWN: /* Host is down */
|
||
#endif
|
||
#ifdef EHOSTUNREACH
|
||
case EHOSTUNREACH: /* No route to host */
|
||
#endif
|
||
#ifdef EDQUOT
|
||
case EDQUOT: /* Disc quota exceeded */
|
||
#endif
|
||
#ifdef EPROCLIM
|
||
case EPROCLIM: /* Too many processes */
|
||
#endif
|
||
#ifdef EUSERS
|
||
case EUSERS: /* Too many users */
|
||
#endif
|
||
#ifdef EDEADLK
|
||
case EDEADLK: /* Resource deadlock avoided */
|
||
#endif
|
||
#ifdef EISCONN
|
||
case EISCONN: /* Socket already connected */
|
||
#endif
|
||
#ifdef EINPROGRESS
|
||
case EINPROGRESS: /* Operation now in progress */
|
||
#endif
|
||
#ifdef EALREADY
|
||
case EALREADY: /* Operation already in progress */
|
||
#endif
|
||
#ifdef EADDRINUSE
|
||
case EADDRINUSE: /* Address already in use */
|
||
#endif
|
||
#ifdef EADDRNOTAVAIL
|
||
case EADDRNOTAVAIL: /* Can't assign requested address */
|
||
#endif
|
||
#ifdef ETXTBSY
|
||
case ETXTBSY: /* (Apollo) file locked */
|
||
#endif
|
||
#if defined(ENOSR) && (!defined(ENOBUFS) || (ENOBUFS != ENOSR))
|
||
case ENOSR: /* Out of streams resources */
|
||
#endif
|
||
return TRUE;
|
||
}
|
||
|
||
/* nope, must be permanent */
|
||
return FALSE;
|
||
}
|
||
/*
|
||
** LOCKFILE -- lock a file using flock or (shudder) fcntl locking
|
||
**
|
||
** Parameters:
|
||
** fd -- the file descriptor of the file.
|
||
** filename -- the file name (for error messages).
|
||
** ext -- the filename extension.
|
||
** type -- type of the lock. Bits can be:
|
||
** LOCK_EX -- exclusive lock.
|
||
** LOCK_NB -- non-blocking.
|
||
**
|
||
** Returns:
|
||
** TRUE if the lock was acquired.
|
||
** FALSE otherwise.
|
||
*/
|
||
|
||
bool
|
||
lockfile(fd, filename, ext, type)
|
||
int fd;
|
||
char *filename;
|
||
char *ext;
|
||
int type;
|
||
{
|
||
# if !HASFLOCK
|
||
int action;
|
||
struct flock lfd;
|
||
|
||
if (ext == NULL)
|
||
ext = "";
|
||
|
||
bzero(&lfd, sizeof lfd);
|
||
if (bitset(LOCK_UN, type))
|
||
lfd.l_type = F_UNLCK;
|
||
else if (bitset(LOCK_EX, type))
|
||
lfd.l_type = F_WRLCK;
|
||
else
|
||
lfd.l_type = F_RDLCK;
|
||
|
||
if (bitset(LOCK_NB, type))
|
||
action = F_SETLK;
|
||
else
|
||
action = F_SETLKW;
|
||
|
||
if (tTd(55, 60))
|
||
printf("lockfile(%s%s, action=%d, type=%d): ",
|
||
filename, ext, action, lfd.l_type);
|
||
|
||
if (fcntl(fd, action, &lfd) >= 0)
|
||
{
|
||
if (tTd(55, 60))
|
||
printf("SUCCESS\n");
|
||
return TRUE;
|
||
}
|
||
|
||
if (tTd(55, 60))
|
||
printf("(%s) ", errstring(errno));
|
||
|
||
/*
|
||
** On SunOS, if you are testing using -oQ/tmp/mqueue or
|
||
** -oA/tmp/aliases or anything like that, and /tmp is mounted
|
||
** as type "tmp" (that is, served from swap space), the
|
||
** previous fcntl will fail with "Invalid argument" errors.
|
||
** Since this is fairly common during testing, we will assume
|
||
** that this indicates that the lock is successfully grabbed.
|
||
*/
|
||
|
||
if (errno == EINVAL)
|
||
{
|
||
if (tTd(55, 60))
|
||
printf("SUCCESS\n");
|
||
return TRUE;
|
||
}
|
||
|
||
if (!bitset(LOCK_NB, type) || (errno != EACCES && errno != EAGAIN))
|
||
{
|
||
int omode = -1;
|
||
# ifdef F_GETFL
|
||
int oerrno = errno;
|
||
|
||
(void) fcntl(fd, F_GETFL, &omode);
|
||
errno = oerrno;
|
||
# endif
|
||
syserr("cannot lockf(%s%s, fd=%d, type=%o, omode=%o, euid=%d)",
|
||
filename, ext, fd, type, omode, geteuid());
|
||
}
|
||
# else
|
||
if (ext == NULL)
|
||
ext = "";
|
||
|
||
if (tTd(55, 60))
|
||
printf("lockfile(%s%s, type=%o): ", filename, ext, type);
|
||
|
||
if (flock(fd, type) >= 0)
|
||
{
|
||
if (tTd(55, 60))
|
||
printf("SUCCESS\n");
|
||
return TRUE;
|
||
}
|
||
|
||
if (tTd(55, 60))
|
||
printf("(%s) ", errstring(errno));
|
||
|
||
if (!bitset(LOCK_NB, type) || errno != EWOULDBLOCK)
|
||
{
|
||
int omode = -1;
|
||
# ifdef F_GETFL
|
||
int oerrno = errno;
|
||
|
||
(void) fcntl(fd, F_GETFL, &omode);
|
||
errno = oerrno;
|
||
# endif
|
||
syserr("cannot flock(%s%s, fd=%d, type=%o, omode=%o, euid=%d)",
|
||
filename, ext, fd, type, omode, geteuid());
|
||
}
|
||
# endif
|
||
if (tTd(55, 60))
|
||
printf("FAIL\n");
|
||
return FALSE;
|
||
}
|
||
/*
|
||
** CHOWNSAFE -- tell if chown is "safe" (executable only by root)
|
||
**
|
||
** Parameters:
|
||
** fd -- the file descriptor to check.
|
||
**
|
||
** Returns:
|
||
** TRUE -- if only root can chown the file to an arbitrary
|
||
** user.
|
||
** FALSE -- if an arbitrary user can give away a file.
|
||
*/
|
||
|
||
bool
|
||
chownsafe(fd)
|
||
int fd;
|
||
{
|
||
#ifdef __hpux
|
||
char *s;
|
||
int tfd;
|
||
uid_t o_uid, o_euid;
|
||
gid_t o_gid, o_egid;
|
||
bool rval;
|
||
struct stat stbuf;
|
||
|
||
o_uid = getuid();
|
||
o_euid = geteuid();
|
||
o_gid = getgid();
|
||
o_egid = getegid();
|
||
fstat(fd, &stbuf);
|
||
setresuid(stbuf.st_uid, stbuf.st_uid, -1);
|
||
setresgid(stbuf.st_gid, stbuf.st_gid, -1);
|
||
s = tmpnam(NULL);
|
||
tfd = open(s, O_RDONLY|O_CREAT, 0600);
|
||
rval = fchown(tfd, DefUid, DefGid) != 0;
|
||
close(tfd);
|
||
unlink(s);
|
||
setreuid(o_uid, o_euid);
|
||
setresgid(o_gid, o_egid, -1);
|
||
return rval;
|
||
#else
|
||
# ifdef _POSIX_CHOWN_RESTRICTED
|
||
# if _POSIX_CHOWN_RESTRICTED == -1
|
||
return FALSE;
|
||
# else
|
||
return TRUE;
|
||
# endif
|
||
# else
|
||
# ifdef _PC_CHOWN_RESTRICTED
|
||
return fpathconf(fd, _PC_CHOWN_RESTRICTED) > 0;
|
||
# else
|
||
# ifdef BSD
|
||
return TRUE;
|
||
# else
|
||
return FALSE;
|
||
# endif
|
||
# endif
|
||
# endif
|
||
#endif
|
||
}
|
||
/*
|
||
** GETCFNAME -- return the name of the .cf file.
|
||
**
|
||
** Some systems (e.g., NeXT) determine this dynamically.
|
||
*/
|
||
|
||
char *
|
||
getcfname()
|
||
{
|
||
if (ConfFile != NULL)
|
||
return ConfFile;
|
||
#ifdef NETINFO
|
||
{
|
||
extern char *ni_propval();
|
||
char *cflocation;
|
||
|
||
cflocation = ni_propval("/locations/sendmail", "sendmail.cf");
|
||
if (cflocation != NULL)
|
||
return cflocation;
|
||
}
|
||
#endif
|
||
return _PATH_SENDMAILCF;
|
||
}
|
||
/*
|
||
** SETVENDOR -- process vendor code from V configuration line
|
||
**
|
||
** Parameters:
|
||
** vendor -- string representation of vendor.
|
||
**
|
||
** Returns:
|
||
** TRUE -- if ok.
|
||
** FALSE -- if vendor code could not be processed.
|
||
**
|
||
** Side Effects:
|
||
** It is reasonable to set mode flags here to tweak
|
||
** processing in other parts of the code if necessary.
|
||
** For example, if you are a vendor that uses $%y to
|
||
** indicate YP lookups, you could enable that here.
|
||
*/
|
||
|
||
bool
|
||
setvendor(vendor)
|
||
char *vendor;
|
||
{
|
||
if (strcasecmp(vendor, "Berkeley") == 0)
|
||
return TRUE;
|
||
|
||
/* add vendor extensions here */
|
||
|
||
return FALSE;
|
||
}
|
||
/*
|
||
** STRTOL -- convert string to long integer
|
||
**
|
||
** For systems that don't have it in the C library.
|
||
**
|
||
** This is taken verbatim from the 4.4-Lite C library.
|
||
*/
|
||
|
||
#ifdef NEEDSTRTOL
|
||
|
||
#if defined(LIBC_SCCS) && !defined(lint)
|
||
static char sccsid[] = "@(#)strtol.c 8.1 (Berkeley) 6/4/93";
|
||
#endif /* LIBC_SCCS and not lint */
|
||
|
||
#include <limits.h>
|
||
|
||
/*
|
||
* Convert a string to a long integer.
|
||
*
|
||
* Ignores `locale' stuff. Assumes that the upper and lower case
|
||
* alphabets and digits are each contiguous.
|
||
*/
|
||
|
||
long
|
||
strtol(nptr, endptr, base)
|
||
const char *nptr;
|
||
char **endptr;
|
||
register int base;
|
||
{
|
||
register const char *s = nptr;
|
||
register unsigned long acc;
|
||
register int c;
|
||
register unsigned long cutoff;
|
||
register int neg = 0, any, cutlim;
|
||
|
||
/*
|
||
* Skip white space and pick up leading +/- sign if any.
|
||
* If base is 0, allow 0x for hex and 0 for octal, else
|
||
* assume decimal; if base is already 16, allow 0x.
|
||
*/
|
||
do {
|
||
c = *s++;
|
||
} while (isspace(c));
|
||
if (c == '-') {
|
||
neg = 1;
|
||
c = *s++;
|
||
} else if (c == '+')
|
||
c = *s++;
|
||
if ((base == 0 || base == 16) &&
|
||
c == '0' && (*s == 'x' || *s == 'X')) {
|
||
c = s[1];
|
||
s += 2;
|
||
base = 16;
|
||
}
|
||
if (base == 0)
|
||
base = c == '0' ? 8 : 10;
|
||
|
||
/*
|
||
* Compute the cutoff value between legal numbers and illegal
|
||
* numbers. That is the largest legal value, divided by the
|
||
* base. An input number that is greater than this value, if
|
||
* followed by a legal input character, is too big. One that
|
||
* is equal to this value may be valid or not; the limit
|
||
* between valid and invalid numbers is then based on the last
|
||
* digit. For instance, if the range for longs is
|
||
* [-2147483648..2147483647] and the input base is 10,
|
||
* cutoff will be set to 214748364 and cutlim to either
|
||
* 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated
|
||
* a value > 214748364, or equal but the next digit is > 7 (or 8),
|
||
* the number is too big, and we will return a range error.
|
||
*
|
||
* Set any if any `digits' consumed; make it negative to indicate
|
||
* overflow.
|
||
*/
|
||
cutoff = neg ? -(unsigned long)LONG_MIN : LONG_MAX;
|
||
cutlim = cutoff % (unsigned long)base;
|
||
cutoff /= (unsigned long)base;
|
||
for (acc = 0, any = 0;; c = *s++) {
|
||
if (isdigit(c))
|
||
c -= '0';
|
||
else if (isalpha(c))
|
||
c -= isupper(c) ? 'A' - 10 : 'a' - 10;
|
||
else
|
||
break;
|
||
if (c >= base)
|
||
break;
|
||
if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim)
|
||
any = -1;
|
||
else {
|
||
any = 1;
|
||
acc *= base;
|
||
acc += c;
|
||
}
|
||
}
|
||
if (any < 0) {
|
||
acc = neg ? LONG_MIN : LONG_MAX;
|
||
errno = ERANGE;
|
||
} else if (neg)
|
||
acc = -acc;
|
||
if (endptr != 0)
|
||
*endptr = (char *)(any ? s - 1 : nptr);
|
||
return (acc);
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** SOLARIS_GETHOSTBY{NAME,ADDR} -- compatibility routines for gethostbyXXX
|
||
**
|
||
** Solaris versions prior through 2.3 don't properly deliver a
|
||
** canonical h_name field. This tries to work around it.
|
||
*/
|
||
|
||
#ifdef SOLARIS
|
||
|
||
struct hostent *
|
||
solaris_gethostbyname(name)
|
||
const char *name;
|
||
{
|
||
# ifdef SOLARIS_2_3
|
||
static struct hostent hp;
|
||
static char buf[1000];
|
||
extern struct hostent *_switch_gethostbyname_r();
|
||
|
||
return _switch_gethostbyname_r(name, &hp, buf, sizeof(buf), &h_errno);
|
||
# else
|
||
extern struct hostent *__switch_gethostbyname();
|
||
|
||
return __switch_gethostbyname(name);
|
||
# endif
|
||
}
|
||
|
||
struct hostent *
|
||
solaris_gethostbyaddr(addr, len, type)
|
||
const char *addr;
|
||
int len;
|
||
int type;
|
||
{
|
||
# ifdef SOLARIS_2_3
|
||
static struct hostent hp;
|
||
static char buf[1000];
|
||
extern struct hostent *_switch_gethostbyaddr_r();
|
||
|
||
return _switch_gethostbyaddr_r(addr, len, type, &hp, buf, sizeof(buf), &h_errno);
|
||
# else
|
||
extern struct hostent *__switch_gethostbyaddr();
|
||
|
||
return __switch_gethostbyaddr(addr, len, type);
|
||
# endif
|
||
}
|
||
|
||
#endif
|
||
/*
|
||
** NI_PROPVAL -- netinfo property value lookup routine
|
||
**
|
||
** Parameters:
|
||
** directory -- the Netinfo directory name.
|
||
** propname -- the Netinfo property name.
|
||
**
|
||
** Returns:
|
||
** NULL -- if:
|
||
** 1. the directory is not found
|
||
** 2. the property name is not found
|
||
** 3. the property contains multiple values
|
||
** 4. some error occured
|
||
** else -- the location of the config file.
|
||
**
|
||
** Notes:
|
||
** Caller should free the return value of ni_proval
|
||
*/
|
||
|
||
#ifdef NETINFO
|
||
|
||
# include <netinfo/ni.h>
|
||
|
||
# define LOCAL_NETINFO_DOMAIN "."
|
||
# define PARENT_NETINFO_DOMAIN ".."
|
||
# define MAX_NI_LEVELS 256
|
||
|
||
char *
|
||
ni_propval(directory, propname)
|
||
char *directory;
|
||
char *propname;
|
||
{
|
||
char *propval = NULL;
|
||
int i;
|
||
void *ni = NULL;
|
||
void *lastni = NULL;
|
||
ni_status nis;
|
||
ni_id nid;
|
||
ni_namelist ninl;
|
||
|
||
/*
|
||
** If the passed directory and property name are found
|
||
** in one of netinfo domains we need to search (starting
|
||
** from the local domain moving all the way back to the
|
||
** root domain) set propval to the property's value
|
||
** and return it.
|
||
*/
|
||
|
||
for (i = 0; i < MAX_NI_LEVELS; ++i)
|
||
{
|
||
if (i == 0)
|
||
{
|
||
nis = ni_open(NULL, LOCAL_NETINFO_DOMAIN, &ni);
|
||
}
|
||
else
|
||
{
|
||
if (lastni != NULL)
|
||
ni_free(lastni);
|
||
lastni = ni;
|
||
nis = ni_open(lastni, PARENT_NETINFO_DOMAIN, &ni);
|
||
}
|
||
|
||
/*
|
||
** Don't bother if we didn't get a handle on a
|
||
** proper domain. This is not necessarily an error.
|
||
** We would get a positive ni_status if, for instance
|
||
** we never found the directory or property and tried
|
||
** to open the parent of the root domain!
|
||
*/
|
||
|
||
if (nis != 0)
|
||
break;
|
||
|
||
/*
|
||
** Find the path to the server information.
|
||
*/
|
||
|
||
if (ni_pathsearch(ni, &nid, directory) != 0)
|
||
continue;
|
||
|
||
/*
|
||
** Find "host" information.
|
||
*/
|
||
|
||
if (ni_lookupprop(ni, &nid, propname, &ninl) != 0)
|
||
continue;
|
||
|
||
/*
|
||
** If there's only one name in
|
||
** the list, assume we've got
|
||
** what we want.
|
||
*/
|
||
|
||
if (ninl.ni_namelist_len == 1)
|
||
{
|
||
propval = ni_name_dup(ninl.ni_namelist_val[0]);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/*
|
||
** Clean up.
|
||
*/
|
||
|
||
if (ni != NULL)
|
||
ni_free(ni);
|
||
if (lastni != NULL && ni != lastni)
|
||
ni_free(lastni);
|
||
|
||
return propval;
|
||
}
|
||
|
||
#endif /* NETINFO */
|
||
/*
|
||
** HARD_SYSLOG -- call syslog repeatedly until it works
|
||
**
|
||
** Needed on HP-UX, which apparently doesn't guarantee that
|
||
** syslog succeeds during interrupt handlers.
|
||
*/
|
||
|
||
#ifdef __hpux
|
||
|
||
# define MAXSYSLOGTRIES 100
|
||
# undef syslog
|
||
|
||
# ifdef __STDC__
|
||
hard_syslog(int pri, char *msg, ...)
|
||
# else
|
||
hard_syslog(pri, msg, va_alist)
|
||
int pri;
|
||
char *msg;
|
||
va_dcl
|
||
# endif
|
||
{
|
||
int i;
|
||
char buf[SYSLOG_BUFSIZE * 2];
|
||
VA_LOCAL_DECL;
|
||
|
||
VA_START(msg);
|
||
vsprintf(buf, msg, ap);
|
||
VA_END;
|
||
|
||
for (i = MAXSYSLOGTRIES; --i >= 0 && syslog(pri, "%s", buf) < 0; )
|
||
continue;
|
||
}
|
||
|
||
#endif
|