2000-08-12 21:55:49 +00:00
|
|
|
/*
|
|
|
|
* Copyright (c) 1999-2000 Sendmail, Inc. and its suppliers.
|
|
|
|
* All rights reserved.
|
|
|
|
* Copyright (c) 1983, 1987, 1993
|
|
|
|
* The Regents of the University of California. All rights reserved.
|
|
|
|
* Copyright (c) 1983 Eric P. Allman. 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.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef lint
|
|
|
|
static char copyright[] =
|
|
|
|
"@(#) Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.\n\
|
|
|
|
All rights reserved.\n\
|
|
|
|
Copyright (c) 1983, 1987, 1993\n\
|
|
|
|
The Regents of the University of California. All rights reserved.\n\
|
|
|
|
Copyright (c) 1983 Eric P. Allman. All rights reserved.\n";
|
|
|
|
#endif /* ! lint */
|
|
|
|
|
|
|
|
#ifndef lint
|
2000-10-01 01:49:02 +00:00
|
|
|
static char id[] = "@(#)$Id: vacation.c,v 8.68.4.7 2000/09/05 21:48:45 gshapiro Exp $";
|
2000-08-12 21:55:49 +00:00
|
|
|
#endif /* ! lint */
|
|
|
|
|
|
|
|
#include <ctype.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <syslog.h>
|
|
|
|
#include <time.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
#ifdef EX_OK
|
|
|
|
# undef EX_OK /* unistd.h may have another use for this */
|
|
|
|
#endif /* EX_OK */
|
|
|
|
#include <sysexits.h>
|
|
|
|
|
|
|
|
#include "sendmail/sendmail.h"
|
|
|
|
#include "libsmdb/smdb.h"
|
|
|
|
|
|
|
|
#if defined(__hpux) && !defined(HPUX11)
|
|
|
|
# undef syslog /* Undo hard_syslog conf.h change */
|
|
|
|
#endif /* defined(__hpux) && !defined(HPUX11) */
|
|
|
|
|
|
|
|
#ifndef _PATH_SENDMAIL
|
|
|
|
# define _PATH_SENDMAIL "/usr/lib/sendmail"
|
|
|
|
#endif /* ! _PATH_SENDMAIL */
|
|
|
|
|
|
|
|
#define ONLY_ONCE ((time_t) 0) /* send at most one reply */
|
|
|
|
#define INTERVAL_UNDEF ((time_t) (-1)) /* no value given */
|
|
|
|
|
|
|
|
uid_t RealUid;
|
|
|
|
gid_t RealGid;
|
|
|
|
char *RealUserName;
|
|
|
|
uid_t RunAsUid;
|
|
|
|
uid_t RunAsGid;
|
|
|
|
char *RunAsUserName;
|
|
|
|
int Verbose = 2;
|
|
|
|
bool DontInitGroups = FALSE;
|
|
|
|
uid_t TrustedUid = 0;
|
|
|
|
BITMAP256 DontBlameSendmail;
|
|
|
|
|
|
|
|
/*
|
|
|
|
** VACATION -- return a message to the sender when on vacation.
|
|
|
|
**
|
|
|
|
** This program is invoked as a message receiver. It returns a
|
|
|
|
** message specified by the user to whomever sent the mail, taking
|
|
|
|
** care not to return a message too often to prevent "I am on
|
|
|
|
** vacation" loops.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define VDB ".vacation" /* vacation database */
|
|
|
|
#define VMSG ".vacation.msg" /* vacation message */
|
|
|
|
#define SECSPERDAY (60 * 60 * 24)
|
|
|
|
#define DAYSPERWEEK 7
|
|
|
|
|
|
|
|
#ifndef TRUE
|
|
|
|
# define TRUE 1
|
|
|
|
# define FALSE 0
|
|
|
|
#endif /* ! TRUE */
|
|
|
|
|
|
|
|
#ifndef __P
|
|
|
|
# ifdef __STDC__
|
|
|
|
# define __P(protos) protos
|
|
|
|
# else /* __STDC__ */
|
|
|
|
# define __P(protos) ()
|
|
|
|
# define const
|
|
|
|
# endif /* __STDC__ */
|
|
|
|
#endif /* ! __P */
|
|
|
|
|
|
|
|
typedef struct alias
|
|
|
|
{
|
|
|
|
char *name;
|
|
|
|
struct alias *next;
|
|
|
|
} ALIAS;
|
|
|
|
|
|
|
|
ALIAS *Names = NULL;
|
|
|
|
|
|
|
|
SMDB_DATABASE *Db;
|
|
|
|
|
|
|
|
char From[MAXLINE];
|
|
|
|
|
|
|
|
#if _FFR_DEBUG
|
|
|
|
void (*msglog)(int, const char *, ...) = &syslog;
|
|
|
|
static void debuglog __P((int, const char *, ...));
|
|
|
|
#else /* _FFR_DEBUG */
|
|
|
|
# define msglog syslog
|
|
|
|
#endif /* _FFR_DEBUG */
|
|
|
|
|
2000-10-01 01:49:02 +00:00
|
|
|
static void eatmsg __P((void));
|
|
|
|
|
|
|
|
/* exit after reading input */
|
|
|
|
#define EXITIT(excode) { \
|
|
|
|
eatmsg(); \
|
|
|
|
exit(excode); \
|
|
|
|
}
|
2000-08-12 21:55:49 +00:00
|
|
|
int
|
|
|
|
main(argc, argv)
|
|
|
|
int argc;
|
|
|
|
char **argv;
|
|
|
|
{
|
|
|
|
bool iflag, emptysender, exclude;
|
|
|
|
#if _FFR_LISTDB
|
|
|
|
bool lflag = FALSE;
|
|
|
|
#endif /* _FFR_LISTDB */
|
|
|
|
int mfail = 0, ufail = 0;
|
|
|
|
int ch;
|
|
|
|
int result;
|
2000-10-01 01:49:02 +00:00
|
|
|
long sff;
|
2000-08-12 21:55:49 +00:00
|
|
|
time_t interval;
|
|
|
|
struct passwd *pw;
|
|
|
|
ALIAS *cur;
|
|
|
|
char *dbfilename = VDB;
|
|
|
|
char *msgfilename = VMSG;
|
|
|
|
char *name;
|
|
|
|
SMDB_USER_INFO user_info;
|
|
|
|
static char rnamebuf[MAXNAME];
|
|
|
|
extern int optind, opterr;
|
|
|
|
extern char *optarg;
|
|
|
|
extern void usage __P((void));
|
|
|
|
extern void setinterval __P((time_t));
|
|
|
|
extern void readheaders __P((void));
|
|
|
|
extern bool recent __P((void));
|
|
|
|
extern void setreply __P((char *, time_t));
|
|
|
|
extern void sendmessage __P((char *, char *, bool));
|
|
|
|
extern void xclude __P((FILE *));
|
2000-10-01 01:49:02 +00:00
|
|
|
#if _FFR_LISTDB
|
|
|
|
#define EXITM(excode) { \
|
|
|
|
if (!iflag && !lflag) \
|
|
|
|
eatmsg(); \
|
|
|
|
exit(excode); \
|
|
|
|
}
|
|
|
|
#else /* _FFR_LISTDB */
|
|
|
|
#define EXITM(excode) { \
|
|
|
|
if (!iflag) \
|
|
|
|
eatmsg(); \
|
|
|
|
exit(excode); \
|
|
|
|
}
|
|
|
|
#endif /* _FFR_LISTDB */
|
2000-08-12 21:55:49 +00:00
|
|
|
|
|
|
|
/* Vars needed to link with smutil */
|
|
|
|
clrbitmap(DontBlameSendmail);
|
|
|
|
RunAsUid = RealUid = getuid();
|
|
|
|
RunAsGid = RealGid = getgid();
|
|
|
|
pw = getpwuid(RealUid);
|
|
|
|
if (pw != NULL)
|
|
|
|
{
|
|
|
|
if (strlen(pw->pw_name) > MAXNAME - 1)
|
|
|
|
pw->pw_name[MAXNAME] = '\0';
|
|
|
|
snprintf(rnamebuf, sizeof rnamebuf, "%s", pw->pw_name);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
snprintf(rnamebuf, sizeof rnamebuf,
|
|
|
|
"Unknown UID %d", (int) RealUid);
|
|
|
|
RunAsUserName = RealUserName = rnamebuf;
|
|
|
|
|
|
|
|
#ifdef LOG_MAIL
|
|
|
|
openlog("vacation", LOG_PID, LOG_MAIL);
|
|
|
|
#else /* LOG_MAIL */
|
|
|
|
openlog("vacation", LOG_PID);
|
|
|
|
#endif /* LOG_MAIL */
|
|
|
|
|
|
|
|
opterr = 0;
|
|
|
|
iflag = FALSE;
|
|
|
|
emptysender = FALSE;
|
|
|
|
exclude = FALSE;
|
|
|
|
interval = INTERVAL_UNDEF;
|
|
|
|
*From = '\0';
|
|
|
|
|
|
|
|
#if _FFR_DEBUG && _FFR_LISTDB
|
|
|
|
# define OPTIONS "a:df:Iilm:r:s:t:xz"
|
|
|
|
#else /* _FFR_DEBUG && _FFR_LISTDB */
|
|
|
|
# if _FFR_DEBUG
|
|
|
|
# define OPTIONS "a:df:Iim:r:s:t:xz"
|
|
|
|
# else /* _FFR_DEBUG */
|
|
|
|
# if _FFR_LISTDB
|
|
|
|
# define OPTIONS "a:f:Iilm:r:s:t:xz"
|
|
|
|
# else /* _FFR_LISTDB */
|
|
|
|
# define OPTIONS "a:f:Iim:r:s:t:xz"
|
|
|
|
# endif /* _FFR_LISTDB */
|
|
|
|
# endif /* _FFR_DEBUG */
|
|
|
|
#endif /* _FFR_DEBUG && _FFR_LISTDB */
|
|
|
|
|
|
|
|
while (mfail == 0 && ufail == 0 &&
|
|
|
|
(ch = getopt(argc, argv, OPTIONS)) != -1)
|
|
|
|
{
|
|
|
|
switch((char)ch)
|
|
|
|
{
|
|
|
|
case 'a': /* alias */
|
|
|
|
cur = (ALIAS *)malloc((u_int)sizeof(ALIAS));
|
|
|
|
if (cur == NULL)
|
|
|
|
{
|
|
|
|
mfail++;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
cur->name = optarg;
|
|
|
|
cur->next = Names;
|
|
|
|
Names = cur;
|
|
|
|
break;
|
|
|
|
|
|
|
|
#if _FFR_DEBUG
|
|
|
|
case 'd': /* debug mode */
|
|
|
|
msglog = &debuglog;
|
|
|
|
break;
|
|
|
|
#endif /* _FFR_DEBUG */
|
|
|
|
|
|
|
|
|
|
|
|
case 'f': /* alternate database */
|
|
|
|
dbfilename = optarg;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'I': /* backward compatible */
|
|
|
|
case 'i': /* init the database */
|
|
|
|
iflag = TRUE;
|
|
|
|
break;
|
|
|
|
|
|
|
|
#if _FFR_LISTDB
|
|
|
|
case 'l':
|
|
|
|
lflag = TRUE; /* list the database */
|
|
|
|
break;
|
|
|
|
#endif /* _FFR_LISTDB */
|
|
|
|
|
|
|
|
case 'm': /* alternate message file */
|
|
|
|
msgfilename = optarg;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'r':
|
|
|
|
if (isascii(*optarg) && isdigit(*optarg))
|
|
|
|
{
|
|
|
|
interval = atol(optarg) * SECSPERDAY;
|
|
|
|
if (interval < 0)
|
|
|
|
ufail++;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
interval = ONLY_ONCE;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 's': /* alternate sender name */
|
|
|
|
(void) strlcpy(From, optarg, sizeof From);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 't': /* SunOS: -t1d (default expire) */
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'x':
|
|
|
|
exclude = TRUE;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'z':
|
|
|
|
emptysender = TRUE;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case '?':
|
|
|
|
default:
|
|
|
|
ufail++;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
argc -= optind;
|
|
|
|
argv += optind;
|
|
|
|
|
|
|
|
if (mfail != 0)
|
|
|
|
{
|
|
|
|
msglog(LOG_NOTICE,
|
|
|
|
"vacation: can't allocate memory for alias.\n");
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITM(EX_TEMPFAIL);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
if (ufail != 0)
|
|
|
|
usage();
|
|
|
|
|
|
|
|
if (argc != 1)
|
|
|
|
{
|
|
|
|
if (!iflag &&
|
|
|
|
#if _FFR_LISTDB
|
|
|
|
!lflag &&
|
|
|
|
#endif /* _FFR_LISTDB */
|
|
|
|
!exclude)
|
|
|
|
usage();
|
|
|
|
if ((pw = getpwuid(getuid())) == NULL)
|
|
|
|
{
|
|
|
|
msglog(LOG_ERR,
|
|
|
|
"vacation: no such user uid %u.\n", getuid());
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITM(EX_NOUSER);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
#if _FFR_BLACKBOX
|
|
|
|
name = *argv;
|
|
|
|
#else /* _FFR_BLACKBOX */
|
|
|
|
else if ((pw = getpwnam(*argv)) == NULL)
|
|
|
|
{
|
|
|
|
msglog(LOG_ERR, "vacation: no such user %s.\n", *argv);
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITM(EX_NOUSER);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
name = pw->pw_name;
|
|
|
|
if (chdir(pw->pw_dir) != 0)
|
|
|
|
{
|
|
|
|
msglog(LOG_NOTICE,
|
|
|
|
"vacation: no such directory %s.\n", pw->pw_dir);
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITM(EX_NOINPUT);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
#endif /* _FFR_BLACKBOX */
|
|
|
|
user_info.smdbu_id = pw->pw_uid;
|
|
|
|
user_info.smdbu_group_id = pw->pw_gid;
|
|
|
|
(void) strlcpy(user_info.smdbu_name, pw->pw_name,
|
|
|
|
SMDB_MAX_USER_NAME_LEN);
|
|
|
|
|
2000-10-01 01:49:02 +00:00
|
|
|
sff = SFF_CREAT;
|
|
|
|
#if _FFR_BLACKBOX
|
|
|
|
if (getegid() != getgid())
|
|
|
|
RunAsGid = user_info.smdbu_group_id = getegid();
|
|
|
|
|
|
|
|
sff |= SFF_NOPATHCHECK|SFF_OPENASROOT;
|
|
|
|
#endif /* _FFR_BLACKBOX */
|
|
|
|
|
2000-08-12 21:55:49 +00:00
|
|
|
result = smdb_open_database(&Db, dbfilename,
|
|
|
|
O_CREAT|O_RDWR | (iflag ? O_TRUNC : 0),
|
2000-10-01 01:49:02 +00:00
|
|
|
S_IRUSR|S_IWUSR, sff,
|
2000-08-12 21:55:49 +00:00
|
|
|
SMDB_TYPE_DEFAULT, &user_info, NULL);
|
|
|
|
if (result != SMDBE_OK)
|
|
|
|
{
|
|
|
|
msglog(LOG_NOTICE, "vacation: %s: %s\n", dbfilename,
|
|
|
|
errstring(result));
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITM(EX_DATAERR);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#if _FFR_LISTDB
|
|
|
|
if (lflag)
|
|
|
|
{
|
|
|
|
static void listdb __P((void));
|
|
|
|
|
|
|
|
listdb();
|
|
|
|
(void)Db->smdb_close(Db);
|
|
|
|
exit(EX_OK);
|
|
|
|
}
|
|
|
|
#endif /* _FFR_LISTDB */
|
|
|
|
|
|
|
|
if (interval != INTERVAL_UNDEF)
|
|
|
|
setinterval(interval);
|
|
|
|
|
|
|
|
if (iflag)
|
|
|
|
{
|
|
|
|
result = Db->smdb_close(Db);
|
|
|
|
if (!exclude)
|
|
|
|
exit(EX_OK);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (exclude)
|
|
|
|
{
|
|
|
|
xclude(stdin);
|
|
|
|
result = Db->smdb_close(Db);
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITM(EX_OK);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if ((cur = (ALIAS *)malloc((u_int)sizeof(ALIAS))) == NULL)
|
|
|
|
{
|
|
|
|
msglog(LOG_NOTICE,
|
|
|
|
"vacation: can't allocate memory for username.\n");
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITM(EX_OSERR);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
cur->name = name;
|
|
|
|
cur->next = Names;
|
|
|
|
Names = cur;
|
|
|
|
|
|
|
|
readheaders();
|
|
|
|
if (!recent())
|
|
|
|
{
|
|
|
|
time_t now;
|
|
|
|
|
|
|
|
(void) time(&now);
|
|
|
|
setreply(From, now);
|
|
|
|
result = Db->smdb_close(Db);
|
|
|
|
sendmessage(name, msgfilename, emptysender);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
result = Db->smdb_close(Db);
|
|
|
|
exit(EX_OK);
|
|
|
|
/* NOTREACHED */
|
|
|
|
return EX_OK;
|
|
|
|
}
|
|
|
|
|
2000-10-01 01:49:02 +00:00
|
|
|
/*
|
|
|
|
** EATMSG -- read stdin till EOF
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** none.
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** nothing.
|
|
|
|
**
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
eatmsg()
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
** read the rest of the e-mail and ignore it to avoid problems
|
|
|
|
** with EPIPE in sendmail
|
|
|
|
*/
|
|
|
|
while (getc(stdin) != EOF)
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2000-08-12 21:55:49 +00:00
|
|
|
/*
|
|
|
|
** READHEADERS -- read mail headers
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** none.
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** nothing.
|
|
|
|
**
|
2000-10-01 01:49:02 +00:00
|
|
|
** Side Effects:
|
|
|
|
** may exit().
|
|
|
|
**
|
2000-08-12 21:55:49 +00:00
|
|
|
*/
|
|
|
|
void
|
|
|
|
readheaders()
|
|
|
|
{
|
|
|
|
bool tome, cont;
|
|
|
|
register char *p;
|
|
|
|
register ALIAS *cur;
|
|
|
|
char buf[MAXLINE];
|
|
|
|
extern bool junkmail __P((char *));
|
|
|
|
extern bool nsearch __P((char *, char *));
|
|
|
|
|
|
|
|
cont = tome = FALSE;
|
|
|
|
while (fgets(buf, sizeof(buf), stdin) && *buf != '\n')
|
|
|
|
{
|
|
|
|
switch(*buf)
|
|
|
|
{
|
|
|
|
case 'F': /* "From " */
|
|
|
|
cont = FALSE;
|
|
|
|
if (strncmp(buf, "From ", 5) == 0)
|
|
|
|
{
|
|
|
|
bool quoted = FALSE;
|
|
|
|
|
|
|
|
p = buf + 5;
|
|
|
|
while (*p != '\0')
|
|
|
|
{
|
|
|
|
/* escaped character */
|
|
|
|
if (*p == '\\')
|
|
|
|
{
|
|
|
|
p++;
|
|
|
|
if (*p == '\0')
|
|
|
|
{
|
|
|
|
msglog(LOG_NOTICE,
|
|
|
|
"vacation: badly formatted \"From \" line.\n");
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITIT(EX_DATAERR);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else if (*p == '"')
|
|
|
|
quoted = !quoted;
|
|
|
|
else if (*p == '\r' || *p == '\n')
|
|
|
|
break;
|
|
|
|
else if (*p == ' ' && !quoted)
|
|
|
|
break;
|
|
|
|
p++;
|
|
|
|
}
|
|
|
|
if (quoted)
|
|
|
|
{
|
|
|
|
msglog(LOG_NOTICE,
|
|
|
|
"vacation: badly formatted \"From \" line.\n");
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITIT(EX_DATAERR);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
*p = '\0';
|
|
|
|
|
|
|
|
/* ok since both strings have MAXLINE length */
|
|
|
|
if (*From == '\0')
|
|
|
|
(void)strlcpy(From, buf + 5,
|
|
|
|
sizeof From);
|
|
|
|
if ((p = strchr(buf + 5, '\n')) != NULL)
|
|
|
|
*p = '\0';
|
|
|
|
if (junkmail(buf + 5))
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITIT(EX_OK);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'P': /* "Precedence:" */
|
|
|
|
case 'p':
|
|
|
|
cont = FALSE;
|
|
|
|
if (strlen(buf) <= 10 ||
|
|
|
|
strncasecmp(buf, "Precedence", 10) != 0 ||
|
|
|
|
(buf[10] != ':' && buf[10] != ' ' &&
|
|
|
|
buf[10] != '\t'))
|
|
|
|
break;
|
|
|
|
if ((p = strchr(buf, ':')) == NULL)
|
|
|
|
break;
|
|
|
|
while (*++p != '\0' && isascii(*p) && isspace(*p));
|
|
|
|
if (*p == '\0')
|
|
|
|
break;
|
|
|
|
if (strncasecmp(p, "junk", 4) == 0 ||
|
|
|
|
strncasecmp(p, "bulk", 4) == 0 ||
|
|
|
|
strncasecmp(p, "list", 4) == 0)
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITIT(EX_OK);
|
2000-08-12 21:55:49 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case 'C': /* "Cc:" */
|
|
|
|
case 'c':
|
|
|
|
if (strncasecmp(buf, "Cc:", 3) != 0)
|
|
|
|
break;
|
|
|
|
cont = TRUE;
|
|
|
|
goto findme;
|
|
|
|
|
|
|
|
case 'T': /* "To:" */
|
|
|
|
case 't':
|
|
|
|
if (strncasecmp(buf, "To:", 3) != 0)
|
|
|
|
break;
|
|
|
|
cont = TRUE;
|
|
|
|
goto findme;
|
|
|
|
|
|
|
|
default:
|
|
|
|
if (!isascii(*buf) || !isspace(*buf) || !cont || tome)
|
|
|
|
{
|
|
|
|
cont = FALSE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
findme:
|
|
|
|
for (cur = Names;
|
|
|
|
!tome && cur != NULL;
|
|
|
|
cur = cur->next)
|
|
|
|
tome = nsearch(cur->name, buf);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!tome)
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITIT(EX_OK);
|
2000-08-12 21:55:49 +00:00
|
|
|
if (*From == '\0')
|
|
|
|
{
|
|
|
|
msglog(LOG_NOTICE, "vacation: no initial \"From \" line.\n");
|
2000-10-01 01:49:02 +00:00
|
|
|
EXITIT(EX_DATAERR);
|
2000-08-12 21:55:49 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** NSEARCH --
|
|
|
|
** do a nice, slow, search of a string for a substring.
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** name -- name to search.
|
|
|
|
** str -- string in which to search.
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** is name a substring of str?
|
|
|
|
**
|
|
|
|
*/
|
|
|
|
bool
|
|
|
|
nsearch(name, str)
|
|
|
|
register char *name, *str;
|
|
|
|
{
|
|
|
|
register size_t len;
|
|
|
|
register char *s;
|
|
|
|
|
|
|
|
len = strlen(name);
|
|
|
|
|
|
|
|
for (s = str; *s != '\0'; ++s)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
** Check to make sure that the string matches and
|
|
|
|
** the previous character is not an alphanumeric and
|
|
|
|
** the next character after the match is not an alphanumeric.
|
|
|
|
**
|
|
|
|
** This prevents matching "eric" to "derick" while still
|
|
|
|
** matching "eric" to "<eric+detail>".
|
|
|
|
*/
|
|
|
|
|
|
|
|
if (tolower(*s) == tolower(*name) &&
|
|
|
|
strncasecmp(name, s, len) == 0 &&
|
|
|
|
(s == str || !isascii(*(s - 1)) || !isalnum(*(s - 1))) &&
|
|
|
|
(!isascii(*(s + len)) || !isalnum(*(s + len))))
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** JUNKMAIL --
|
|
|
|
** read the header and return if automagic/junk/bulk/list mail
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** from -- sender address.
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** is this some automated/junk/bulk/list mail?
|
|
|
|
**
|
|
|
|
*/
|
|
|
|
bool
|
|
|
|
junkmail(from)
|
|
|
|
char *from;
|
|
|
|
{
|
|
|
|
register size_t len;
|
|
|
|
register char *p;
|
|
|
|
register struct ignore *cur;
|
|
|
|
static struct ignore
|
|
|
|
{
|
|
|
|
char *name;
|
|
|
|
size_t len;
|
|
|
|
} ignore[] =
|
|
|
|
{
|
|
|
|
{ "-request", 8 },
|
|
|
|
{ "postmaster", 10 },
|
|
|
|
{ "uucp", 4 },
|
|
|
|
{ "mailer-daemon", 13 },
|
|
|
|
{ "mailer", 6 },
|
|
|
|
{ "-relay", 6 },
|
|
|
|
{ NULL, 0 }
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This is mildly amusing, and I'm not positive it's right; trying
|
|
|
|
* to find the "real" name of the sender, assuming that addresses
|
|
|
|
* will be some variant of:
|
|
|
|
*
|
|
|
|
* From site!site!SENDER%site.domain%site.domain@site.domain
|
|
|
|
*/
|
|
|
|
if ((p = strchr(from, '%')) == NULL &&
|
|
|
|
(p = strchr(from, '@')) == NULL)
|
|
|
|
{
|
|
|
|
if ((p = strrchr(from, '!')) != NULL)
|
|
|
|
++p;
|
|
|
|
else
|
|
|
|
p = from;
|
|
|
|
for (; *p; ++p)
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
len = p - from;
|
|
|
|
for (cur = ignore; cur->name != NULL; ++cur)
|
|
|
|
{
|
|
|
|
if (len >= cur->len &&
|
|
|
|
strncasecmp(cur->name, p - cur->len, cur->len) == 0)
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
#define VIT "__VACATION__INTERVAL__TIMER__"
|
|
|
|
|
|
|
|
/*
|
|
|
|
** RECENT --
|
|
|
|
** find out if user has gotten a vacation message recently.
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** none.
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** TRUE iff user has gotten a vacation message recently.
|
|
|
|
**
|
|
|
|
*/
|
|
|
|
bool
|
|
|
|
recent()
|
|
|
|
{
|
|
|
|
SMDB_DBENT key, data;
|
|
|
|
time_t then, next;
|
|
|
|
bool trydomain = FALSE;
|
|
|
|
int st;
|
|
|
|
char *domain;
|
|
|
|
|
|
|
|
memset(&key, '\0', sizeof key);
|
|
|
|
memset(&data, '\0', sizeof data);
|
|
|
|
|
|
|
|
/* get interval time */
|
|
|
|
key.data.data = VIT;
|
|
|
|
key.data.size = sizeof(VIT);
|
|
|
|
|
|
|
|
st = Db->smdb_get(Db, &key, &data, 0);
|
|
|
|
if (st != SMDBE_OK)
|
|
|
|
next = SECSPERDAY * DAYSPERWEEK;
|
|
|
|
else
|
|
|
|
memmove(&next, data.data.data, sizeof(next));
|
|
|
|
|
|
|
|
memset(&data, '\0', sizeof data);
|
|
|
|
|
|
|
|
/* get record for this address */
|
|
|
|
key.data.data = From;
|
|
|
|
key.data.size = strlen(From);
|
|
|
|
|
|
|
|
do
|
|
|
|
{
|
|
|
|
st = Db->smdb_get(Db, &key, &data, 0);
|
|
|
|
if (st == SMDBE_OK)
|
|
|
|
{
|
|
|
|
memmove(&then, data.data.data, sizeof(then));
|
|
|
|
if (next == ONLY_ONCE || then == ONLY_ONCE ||
|
|
|
|
then + next > time(NULL))
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
if ((trydomain = !trydomain) &&
|
|
|
|
(domain = strchr(From, '@')) != NULL)
|
|
|
|
{
|
|
|
|
key.data.data = domain;
|
|
|
|
key.data.size = strlen(domain);
|
|
|
|
}
|
|
|
|
} while (trydomain);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** SETINTERVAL --
|
|
|
|
** store the reply interval
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** interval -- time interval for replies.
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** nothing.
|
|
|
|
**
|
|
|
|
** Side Effects:
|
|
|
|
** stores the reply interval in database.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
setinterval(interval)
|
|
|
|
time_t interval;
|
|
|
|
{
|
|
|
|
SMDB_DBENT key, data;
|
|
|
|
|
|
|
|
memset(&key, '\0', sizeof key);
|
|
|
|
memset(&data, '\0', sizeof data);
|
|
|
|
|
|
|
|
key.data.data = VIT;
|
|
|
|
key.data.size = sizeof(VIT);
|
|
|
|
data.data.data = (char*) &interval;
|
|
|
|
data.data.size = sizeof(interval);
|
|
|
|
(void)(Db->smdb_put)(Db, &key, &data, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** SETREPLY --
|
|
|
|
** store that this user knows about the vacation.
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** from -- sender address.
|
|
|
|
** when -- last reply time.
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** nothing.
|
|
|
|
**
|
|
|
|
** Side Effects:
|
|
|
|
** stores user/time in database.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
setreply(from, when)
|
|
|
|
char *from;
|
|
|
|
time_t when;
|
|
|
|
{
|
|
|
|
SMDB_DBENT key, data;
|
|
|
|
|
|
|
|
memset(&key, '\0', sizeof key);
|
|
|
|
memset(&data, '\0', sizeof data);
|
|
|
|
|
|
|
|
key.data.data = from;
|
|
|
|
key.data.size = strlen(from);
|
|
|
|
data.data.data = (char*) &when;
|
|
|
|
data.data.size = sizeof(when);
|
|
|
|
(void)(Db->smdb_put)(Db, &key, &data, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** XCLUDE --
|
|
|
|
** add users to vacation db so they don't get a reply.
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** f -- file pointer with list of address to exclude
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** nothing.
|
|
|
|
**
|
|
|
|
** Side Effects:
|
|
|
|
** stores users in database.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
xclude(f)
|
|
|
|
FILE *f;
|
|
|
|
{
|
|
|
|
char buf[MAXLINE], *p;
|
|
|
|
|
|
|
|
if (f == NULL)
|
|
|
|
return;
|
|
|
|
while (fgets(buf, sizeof buf, f))
|
|
|
|
{
|
|
|
|
if ((p = strchr(buf, '\n')) != NULL)
|
|
|
|
*p = '\0';
|
|
|
|
setreply(buf, ONLY_ONCE);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** SENDMESSAGE --
|
|
|
|
** exec sendmail to send the vacation file to sender
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** myname -- user name.
|
|
|
|
** msgfn -- name of file with vacation message.
|
|
|
|
** emptysender -- use <> as sender address?
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** nothing.
|
|
|
|
**
|
|
|
|
** Side Effects:
|
|
|
|
** sends vacation reply.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
sendmessage(myname, msgfn, emptysender)
|
|
|
|
char *myname;
|
|
|
|
char *msgfn;
|
|
|
|
bool emptysender;
|
|
|
|
{
|
|
|
|
FILE *mfp, *sfp;
|
|
|
|
int i;
|
|
|
|
int pvect[2];
|
|
|
|
char buf[MAXLINE];
|
|
|
|
|
|
|
|
mfp = fopen(msgfn, "r");
|
|
|
|
if (mfp == NULL)
|
|
|
|
{
|
|
|
|
if (msgfn[0] == '/')
|
|
|
|
msglog(LOG_NOTICE, "vacation: no %s file.\n", msgfn);
|
|
|
|
else
|
|
|
|
msglog(LOG_NOTICE, "vacation: no ~%s/%s file.\n",
|
|
|
|
myname, msgfn);
|
|
|
|
exit(EX_NOINPUT);
|
|
|
|
}
|
|
|
|
if (pipe(pvect) < 0)
|
|
|
|
{
|
|
|
|
msglog(LOG_ERR, "vacation: pipe: %s", errstring(errno));
|
|
|
|
exit(EX_OSERR);
|
|
|
|
}
|
|
|
|
i = fork();
|
|
|
|
if (i < 0)
|
|
|
|
{
|
|
|
|
msglog(LOG_ERR, "vacation: fork: %s", errstring(errno));
|
|
|
|
exit(EX_OSERR);
|
|
|
|
}
|
|
|
|
if (i == 0)
|
|
|
|
{
|
|
|
|
(void) dup2(pvect[0], 0);
|
|
|
|
(void) close(pvect[0]);
|
|
|
|
(void) close(pvect[1]);
|
|
|
|
(void) fclose(mfp);
|
|
|
|
if (emptysender)
|
|
|
|
myname = "<>";
|
2000-10-01 01:49:02 +00:00
|
|
|
(void) execl(_PATH_SENDMAIL, "sendmail", "-oi",
|
|
|
|
"-f", myname, "--", From, NULL);
|
2000-08-12 21:55:49 +00:00
|
|
|
msglog(LOG_ERR, "vacation: can't exec %s: %s",
|
|
|
|
_PATH_SENDMAIL, errstring(errno));
|
|
|
|
exit(EX_UNAVAILABLE);
|
|
|
|
}
|
|
|
|
/* check return status of the following calls? XXX */
|
|
|
|
(void) close(pvect[0]);
|
|
|
|
if ((sfp = fdopen(pvect[1], "w")) != NULL)
|
|
|
|
{
|
|
|
|
(void) fprintf(sfp, "To: %s\n", From);
|
|
|
|
(void) fprintf(sfp, "Auto-Submitted: auto-generated\n");
|
|
|
|
while (fgets(buf, sizeof buf, mfp))
|
|
|
|
(void) fputs(buf, sfp);
|
|
|
|
(void) fclose(mfp);
|
|
|
|
(void) fclose(sfp);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
(void) fclose(mfp);
|
|
|
|
msglog(LOG_ERR, "vacation: can't open pipe to sendmail");
|
|
|
|
exit(EX_UNAVAILABLE);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
usage()
|
|
|
|
{
|
|
|
|
msglog(LOG_NOTICE, "uid %u: usage: vacation [-i] [-a alias]%s [-f db]%s [-m msg] [-r interval] [-s sender] [-t time] [-x] [-z] login\n",
|
|
|
|
getuid(),
|
|
|
|
#if _FFR_DEBUG
|
|
|
|
" [-d]",
|
|
|
|
#else /* _FFR_DEBUG */
|
|
|
|
"",
|
|
|
|
#endif /* _FFR_DEBUG */
|
|
|
|
#if _FFR_LISTDB
|
|
|
|
" [-l]"
|
|
|
|
#else /* _FFR_LISTDB */
|
|
|
|
""
|
|
|
|
#endif /* _FFR_LISTDB */
|
|
|
|
);
|
|
|
|
exit(EX_USAGE);
|
|
|
|
}
|
|
|
|
|
|
|
|
#if _FFR_LISTDB
|
|
|
|
/*
|
|
|
|
** LISTDB -- list the contents of the vacation database
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** none.
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** nothing.
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void
|
|
|
|
listdb()
|
|
|
|
{
|
|
|
|
int result;
|
|
|
|
time_t t;
|
|
|
|
SMDB_CURSOR *cursor = NULL;
|
|
|
|
SMDB_DBENT db_key, db_value;
|
|
|
|
|
|
|
|
memset(&db_key, '\0', sizeof db_key);
|
|
|
|
memset(&db_value, '\0', sizeof db_value);
|
|
|
|
|
|
|
|
result = Db->smdb_cursor(Db, &cursor, 0);
|
|
|
|
if (result != SMDBE_OK)
|
|
|
|
{
|
|
|
|
fprintf(stderr, "vacation: set cursor: %s\n",
|
|
|
|
errstring(result));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
while ((result = cursor->smdbc_get(cursor, &db_key, &db_value,
|
|
|
|
SMDB_CURSOR_GET_NEXT)) == SMDBE_OK)
|
|
|
|
{
|
|
|
|
/* skip magic VIT entry */
|
|
|
|
if ((int)db_key.data.size -1 == strlen(VIT) &&
|
|
|
|
strncmp((char *)db_key.data.data, VIT,
|
|
|
|
(int)db_key.data.size - 1) == 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/* skip bogus values */
|
|
|
|
if (db_value.data.size != sizeof t)
|
|
|
|
{
|
|
|
|
fprintf(stderr, "vacation: %.*s invalid time stamp\n",
|
|
|
|
(int) db_key.data.size,
|
|
|
|
(char *) db_key.data.data);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(&t, db_value.data.data, sizeof t);
|
|
|
|
|
|
|
|
if (db_key.data.size > 40)
|
|
|
|
db_key.data.size = 40;
|
|
|
|
|
|
|
|
printf("%-40.*s %-10s",
|
|
|
|
(int) db_key.data.size, (char *) db_key.data.data,
|
|
|
|
ctime(&t));
|
|
|
|
|
|
|
|
memset(&db_key, '\0', sizeof db_key);
|
|
|
|
memset(&db_value, '\0', sizeof db_value);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (result != SMDBE_OK && result != SMDBE_LAST_ENTRY)
|
|
|
|
{
|
|
|
|
fprintf(stderr, "vacation: get value at cursor: %s\n",
|
|
|
|
errstring(result));
|
|
|
|
if (cursor != NULL)
|
|
|
|
{
|
|
|
|
(void) cursor->smdbc_close(cursor);
|
|
|
|
cursor = NULL;
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
(void) cursor->smdbc_close(cursor);
|
|
|
|
cursor = NULL;
|
|
|
|
}
|
|
|
|
#endif /* _FFR_LISTDB */
|
|
|
|
|
|
|
|
#if _FFR_DEBUG
|
|
|
|
/*
|
|
|
|
** DEBUGLOG -- write message to standard error
|
|
|
|
**
|
|
|
|
** Append a message to the standard error for the convenience of
|
|
|
|
** end-users debugging without access to the syslog messages.
|
|
|
|
**
|
|
|
|
** Parameters:
|
|
|
|
** i -- syslog log level
|
|
|
|
** fmt -- string format
|
|
|
|
**
|
|
|
|
** Returns:
|
|
|
|
** nothing.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*VARARGS2*/
|
|
|
|
static void
|
|
|
|
#ifdef __STDC__
|
|
|
|
debuglog(int i, const char *fmt, ...)
|
|
|
|
#else /* __STDC__ */
|
|
|
|
debuglog(i, fmt, va_alist)
|
|
|
|
int i;
|
|
|
|
const char *fmt;
|
|
|
|
va_dcl
|
|
|
|
#endif /* __STDC__ */
|
|
|
|
|
|
|
|
{
|
|
|
|
VA_LOCAL_DECL
|
|
|
|
|
|
|
|
VA_START(fmt);
|
|
|
|
vfprintf(stderr, fmt, ap);
|
|
|
|
VA_END;
|
|
|
|
}
|
|
|
|
#endif /* _FFR_DEBUG */
|
|
|
|
|
|
|
|
/*VARARGS1*/
|
|
|
|
void
|
|
|
|
#ifdef __STDC__
|
|
|
|
message(const char *msg, ...)
|
|
|
|
#else /* __STDC__ */
|
|
|
|
message(msg, va_alist)
|
|
|
|
const char *msg;
|
|
|
|
va_dcl
|
|
|
|
#endif /* __STDC__ */
|
|
|
|
{
|
|
|
|
const char *m;
|
|
|
|
VA_LOCAL_DECL
|
|
|
|
|
|
|
|
m = msg;
|
|
|
|
if (isascii(m[0]) && isdigit(m[0]) &&
|
|
|
|
isascii(m[1]) && isdigit(m[1]) &&
|
|
|
|
isascii(m[2]) && isdigit(m[2]) && m[3] == ' ')
|
|
|
|
m += 4;
|
|
|
|
VA_START(msg);
|
|
|
|
(void) vfprintf(stderr, m, ap);
|
|
|
|
VA_END;
|
|
|
|
(void) fprintf(stderr, "\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
/*VARARGS1*/
|
|
|
|
void
|
|
|
|
#ifdef __STDC__
|
|
|
|
syserr(const char *msg, ...)
|
|
|
|
#else /* __STDC__ */
|
|
|
|
syserr(msg, va_alist)
|
|
|
|
const char *msg;
|
|
|
|
va_dcl
|
|
|
|
#endif /* __STDC__ */
|
|
|
|
{
|
|
|
|
const char *m;
|
|
|
|
VA_LOCAL_DECL
|
|
|
|
|
|
|
|
m = msg;
|
|
|
|
if (isascii(m[0]) && isdigit(m[0]) &&
|
|
|
|
isascii(m[1]) && isdigit(m[1]) &&
|
|
|
|
isascii(m[2]) && isdigit(m[2]) && m[3] == ' ')
|
|
|
|
m += 4;
|
|
|
|
VA_START(msg);
|
|
|
|
(void) vfprintf(stderr, m, ap);
|
|
|
|
VA_END;
|
|
|
|
(void) fprintf(stderr, "\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
dumpfd(fd, printclosed, logit)
|
|
|
|
int fd;
|
|
|
|
bool printclosed;
|
|
|
|
bool logit;
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|