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BSD 4_4 release
[unix-history] / usr / src / contrib / mh-6.8 / uip / slocal.c
/* slocal.c - MH style mailer to write to a local user's mailbox */
#ifndef lint
static char ident[] = "@(#)$Id: slocal.c,v 1.23 1992/12/15 00:20:22 jromine Exp $";
#endif /* lint */
/* This program implements mail delivery in the MH/MMDF style.
Under SendMail, users should add the line
"| /usr/local/lib/mh/slocal"
to their $HOME/.forward file.
Under MMDF-I, users should (symbolically) link /usr/local/lib/mh/slocal
to $HOME/bin/rcvmail.
Under stand-alone MH, post will automatically run this during local
delivery.
This program should be used ONLY if you have "mts sendmail" or "mts mh"
or "mts mmdf1" set in your MH configuration.
*/
/* \f */
#include "../h/mh.h"
#include "../h/dropsbr.h"
#include "../h/rcvmail.h"
#include "../zotnet/tws.h"
#include "../zotnet/mts.h"
#include <pwd.h>
#include <signal.h>
#ifndef V7
#ifndef NOIOCTLH
#include <sys/ioctl.h>
#endif /* NOIOCTLH */
#endif /* not V7 */
#include <sys/stat.h>
#include <utmp.h>
#ifdef LOCALE
#include <locale.h>
#endif
#ifdef MSGID
#undef DBM /* used by ndbm.h */
#include <ndbm.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/file.h>
#ifdef SYS5
#include <fcntl.h>
#endif
#ifdef UNISTD
#include <unistd.h>
#endif
#if defined(LOCKF) && !defined(F_ULOCK)
#include <sys/fcntl.h>
#endif /* LOCKF */
#endif
#define NVEC 100
/* \f */
static struct swit switches[] = {
#define ADDRSW 0
"addr address", 0,
#define USERSW 1
"user name", 0,
#define FILESW 2
"file file", 0,
#define SENDSW 3
"sender address", 0,
#define MBOXSW 4
"mailbox file", 0,
#define HOMESW 5
"home directory", -4,
#define INFOSW 6
"info data", 0,
#define MAILSW 7
"maildelivery file", 0,
#define VERBSW 8
"verbose", 0,
#define NVERBSW 9
"noverbose", 0,
#define DEBUGSW 10
"debug", 0,
#define HELPSW 11
"help", 4,
NULL, 0
};
/* \f */
static int debug = 0;
static int globbed = 0;
static int parsed = 0;
static int utmped = 0;
static int verbose = 0;
static char *addr = NULLCP;
static char *user = NULLCP;
static char *info = NULLCP;
static char *file = NULLCP;
static char *sender = NULLCP;
static char *unixfrom = NULLCP;
static char *mbox = NULLCP;
static char *home = NULLCP;
static struct passwd *pw;
static char ddate[BUFSIZ];
struct tws *now;
static jmp_buf myctx;
/* \f */
struct pair {
char *p_name;
char *p_value;
char p_flags;
#define P_NIL 0x00
#define P_ADR 0x01
#define P_HID 0x02
#define P_CHK 0x04
};
static struct pair *lookup ();
static struct pair hdrs[NVEC + 1] = {
"source", NULL, P_HID,
"addr", NULL, P_HID,
"Return-Path", NULL, P_ADR,
"Reply-To", NULL, P_ADR,
"From", NULL, P_ADR,
"Sender", NULL, P_ADR,
"To", NULL, P_ADR,
"cc", NULL, P_ADR,
"Resent-Reply-To", NULL, P_ADR,
"Resent-From", NULL, P_ADR,
"Resent-Sender", NULL, P_ADR,
"Resent-To", NULL, P_ADR,
"Resent-cc", NULL, P_ADR,
NULL
};
static struct pair vars[] = {
"sender", NULL, P_NIL,
"address", NULL, P_NIL,
"size", NULL, P_NIL,
"reply-to", NULL, P_CHK,
"info", NULL, P_NIL,
NULL
};
/* \f */
extern char **environ;
static void adorn ();
static TYPESIG alrmser ();
off_t lseek ();
#ifndef __STDC__
#ifdef SYS5
struct passwd *getpwnam ();
#endif /* SYS5 */
#endif
static int localmail(), usr_delivery(), split(), parse(), logged_in();
static int timely(), usr_file(), usr_pipe(), copyfile();
static expand(), glob(), copyinfo();
/* \f */
/* ARGSUSED */
main (argc, argv, envp)
int argc;
char **argv,
**envp;
{
int fd;
FILE *fp = stdin;
char *cp,
*mdlvr = NULL,
buf[100],
from[BUFSIZ],
mailbox[BUFSIZ],
tmpfil[BUFSIZ],
**argp = argv + 1;
#ifdef LOCALE
setlocale(LC_ALL, "");
#endif
invo_name = r1bindex (*argv, '/');
m_foil (NULLCP);
mts_init (invo_name);
/* \f */
while (cp = *argp++) {
if (*cp == '-')
switch (smatch (++cp, switches)) {
case AMBIGSW:
ambigsw (cp, switches);
done (1);
case UNKWNSW:
adios (NULLCP, "-%s unknown", cp);
case HELPSW:
(void) sprintf (buf, "%s [switches] [address info sender]",
invo_name);
help (buf, switches);
done (1);
case ADDRSW:
if (!(addr = *argp++))/* allow -xyz arguments */
adios (NULLCP, "missing argument to %s", argp[-2]);
continue;
case INFOSW:
if (!(info = *argp++))/* allow -xyz arguments */
adios (NULLCP, "missing argument to %s", argp[-2]);
continue;
case USERSW:
if (!(user = *argp++))/* allow -xyz arguments */
adios (NULLCP, "missing argument to %s", argp[-2]);
continue;
case FILESW:
if (!(file = *argp++) || *file == '-')
adios (NULLCP, "missing argument to %s", argp[-2]);
continue;
case SENDSW:
if (!(sender = *argp++))/* allow -xyz arguments */
adios (NULLCP, "missing argument to %s", argp[-2]);
continue;
case MBOXSW:
if (!(mbox = *argp++) || *mbox == '-')
adios (NULLCP, "missing argument to %s", argp[-2]);
continue;
case HOMESW:
if (!(home = *argp++) || *home == '-')
adios (NULLCP, "missing argument to %s", argp[-2]);
continue;
case MAILSW:
if (!(cp = *argp++) || *cp == '-')
adios (NULLCP, "missing argument to %s", argp[-2]);
if (mdlvr)
adios (NULLCP, "only one maildelivery file at a time!");
mdlvr = cp;
continue;
case VERBSW:
verbose++;
continue;
case NVERBSW:
verbose = 0;
continue;
case DEBUGSW:
debug++;
continue;
}
switch (argp - (argv + 1)) {
case 1:
addr = cp;
break;
case 2:
info = cp;
break;
case 3:
sender = cp;
break;
}
}
/* \f */
if (addr == NULL)
addr = getusr ();
if (user == NULL)
user = (cp = index (addr, '.')) ? ++cp : addr;
if ((pw = getpwnam (user)) == NULL)
adios (NULLCP, "no such local user as %s", user);
if (chdir (pw -> pw_dir) == NOTOK)
(void) chdir ("/");
(void) umask (0077);
if (geteuid () == 0) {
#ifdef BSD41A
(void) inigrp (pw -> pw_name, pw -> pw_gid);
#endif /* BSD41A */
(void) setgid (pw -> pw_gid);
#ifdef BSD42
(void) initgroups (pw -> pw_name, pw -> pw_gid);
#endif /* BSD42 */
(void) setuid (pw -> pw_uid);
}
if (info == NULL)
info = "";
setbuf (stdin, NULLCP);
if (file == NULL) {
if ((fd = copyfile (fileno (stdin), file = tmpfil, 1)) == NOTOK)
adios (NULLCP, "unable to create temporary file");
if (debug)
fprintf (stderr, "temporary file \"%s\" selected\n", tmpfil);
else
(void) unlink (tmpfil);
if ((fp = fdopen (fd, "r+")) == NULL)
adios (NULLCP, "unable to access temporary file");
}
else
fd = fileno (stdin);
from[0] = 0;
if (sender == NULL)
copyinfo (fp, from);
if (mbox == NULL) {
(void) sprintf (mailbox, "%s/%s",
mmdfldir[0] ? mmdfldir : pw -> pw_dir,
mmdflfil[0] ? mmdflfil : pw -> pw_name);
mbox = mailbox;
}
if (home == NULL)
home = pw -> pw_dir;
if ((now = dtwstime ()) == NULL)
adios (NULLCP, "unable to ascertain local time");
(void) sprintf (ddate, "Delivery-Date: %s\n", dtimenow ());
if (debug) {
fprintf (stderr, "addr=\"%s\" user=\"%s\" info=\"%s\" file=\"%s\"\n",
addr, user, info, file);
fprintf (stderr, "sender=\"%s\" mbox=\"%s\" home=\"%s\" from=\"%s\"\n",
sender, mbox, home, from);
fprintf (stderr, "ddate=\"%s\" now=%02d:%02d\n",
ddate, now -> tw_hour, now -> tw_min);
}
done (localmail (fd, from, mdlvr) != NOTOK ? RCV_MOK : RCV_MBX);
}
/* \f */
static int localmail (fd, from, mdlvr)
int fd;
char *from,
*mdlvr;
{
#ifdef MSGID
struct stat st;
if (stat (".maildelivery.pag", &st) != NOTOK
&& check_msgid (fd, ".maildelivery") == DONE)
return OK;
#endif
if (usr_delivery (fd, mdlvr ? mdlvr : ".maildelivery", 0, from) != NOTOK)
return OK;
if (usr_delivery (fd, maildelivery, 1, from) != NOTOK)
return OK;
#ifdef notdef
if (verbose)
printf ("(invoking hook)\n");
if (usr_hook (fd, mbox) != NOTOK)
return OK;
#endif /* notdef */
if (verbose)
printf ("(trying normal delivery)\n");
return usr_file (fd, mbox, from);
}
/* \f */
#define matches(a,b) (stringdex (b, a) >= 0)
static int usr_delivery (fd, delivery, su, from)
int fd,
su;
char *delivery,
*from;
{
int i,
accept,
status,
won,
vecp,
next;
register char *cp,
*action,
*field,
*pattern,
*string;
char buffer[BUFSIZ],
tmpbuf[BUFSIZ],
*vec[NVEC];
struct stat st;
register struct pair *p;
register FILE *fp;
if ((fp = fopen (delivery, "r")) == NULL)
return NOTOK;
if (fstat (fileno (fp), &st) == NOTOK
|| (st.st_uid != 0 && (su || st.st_uid != pw -> pw_uid))
|| st.st_mode & 0022) {
if (verbose) {
printf ("%s: ownership/modes bad (%d, %d,%d,0%o)\n",
delivery, su, pw -> pw_uid, st.st_uid, st.st_mode);
(void) fflush (stdout);
}
return NOTOK;
}
won = 0;
next = 1;
while (fgets (buffer, sizeof buffer, fp) != NULL) {
if (*buffer == '#')
continue;
if (cp = index (buffer, '\n'))
*cp = 0;
if ((vecp = split (buffer, vec)) < 5)
continue;
if (debug)
for (i = 0; vec[i]; i++)
fprintf (stderr, "vec[%d]: \"%s\"\n", i, vec[i]);
field = vec[0];
pattern = vec[1];
action = vec[2];
switch (vec[3][0]) {
case 'N':
case 'n':
if (! next)
continue; /* if previous condition failed, don't
do this - else fall through */
case '?':
if (won)
continue; /* else fall */
case 'A':
case 'a':
accept = 1;
break;
case 'R':
case 'r':
default:
accept = 0;
break;
}
string = vec[4];
if (vecp > 5) {
if (uleq (vec[5], "select")) {
if (logged_in () != NOTOK)
continue;
if (vecp > 7 && timely (vec[6], vec[7]) == NOTOK)
continue;
}
}
switch (*field) {
case '*':
break;
case 'd':
if (uleq (field, "default")) {
if (won)
continue;
break;
} /* else fall */
default:
if (!parsed && parse (fd) == NOTOK) {
(void) fclose (fp);
return NOTOK;
}
if ((p = lookup (hdrs, field)) == NULL
|| (p->p_value == NULL) /* XXX */
|| !matches (p -> p_value, pattern)) {
next = 0;
continue;
}
else
next = 1;
break;
}
switch (*action) {
case 'q':
if (!uleq (action, "qpipe"))
continue; /* else fall */
case '^':
expand (tmpbuf, string, fd);
if (split (tmpbuf, vec) < 1)
continue;
status = usr_pipe (fd, tmpbuf, vec[0], vec);
break;
case 'p':
if (!uleq (action, "pipe"))
continue; /* else fall */
case '|':
vec[2] = "sh";
vec[3] = "-c";
expand (tmpbuf, string, fd);
vec[4] = tmpbuf;
vec[5] = NULL;
status = usr_pipe (fd, tmpbuf, "/bin/sh", vec + 2);
break;
case 'f':
if (!uleq (action, "file"))
continue; /* else fall */
case '>':
#ifdef RPATHS
status = usr_file (fd, string, from); /* UUCP format? */
#else
status = usr_file (fd, string, NULLCP);
#endif
break;
case 'm':
if (!uleq (action, "mbox"))
continue;
status = usr_file (fd, string, NULLCP);
break;
case 'd':
if (!uleq (action, "destroy"))
continue;
status = OK;
break;
}
if (accept && status == OK)
won++;
}
(void) fclose (fp);
return (won ? OK : NOTOK);
}
/* \f */
#define QUOTE '\\'
static int split (cp, vec)
char *cp,
**vec;
{
register int i;
register char *s;
for (i = 0, s = cp; i <= NVEC;) {
vec[i] = NULL;
while (isspace (*s) || *s == ',')
*s++ = 0;
if (*s == 0)
break;
if (*s == '"') {
for (vec[i++] = ++s; *s != 0 && *s != '"'; s++)
if (*s == QUOTE) {
if (*++s == '"')
(void) strcpy (s - 1, s);
s--;
}
if (*s == '"')
*s++ = 0;
continue;
}
if (*s == QUOTE && *++s != '"')
s--;
vec[i++] = s++;
while (*s != 0 && !isspace (*s) && *s != ',')
s++;
}
vec[i] = NULL;
return i;
}
/* \f */
static int parse (fd)
register int fd;
{
register int i,
state;
int fd1;
register char *cp,
*dp,
*lp;
char name[NAMESZ],
field[BUFSIZ];
register struct pair *p,
*q;
register FILE *in;
if (parsed++)
return OK;
if ((fd1 = dup (fd)) == NOTOK)
return NOTOK;
if ((in = fdopen (fd1, "r")) == NULL) {
(void) close (fd1);
return NOTOK;
}
rewind (in);
if (p = lookup (hdrs, "source"))
p -> p_value = getcpy (sender);
if (p = lookup (hdrs, "addr"))
p -> p_value = getcpy (addr);
for (i = 0, state = FLD;;) {
switch (state = m_getfld (state, name, field, sizeof field, in)) {
case FLD:
case FLDEOF:
case FLDPLUS:
lp = add (field, NULLCP);
while (state == FLDPLUS) {
state = m_getfld (state, name, field, sizeof field, in);
lp = add (field, lp);
}
for (p = hdrs; p -> p_name; p++)
if (uleq (p -> p_name, name)) {
if (!(p -> p_flags & P_HID)) {
if (cp = p -> p_value)
if (p -> p_flags & P_ADR) {
dp = cp + strlen (cp) - 1;
if (*dp == '\n')
*dp = 0;
cp = add (",\n\t", cp);
}
else
cp = add ("\t", cp);
p -> p_value = add (lp, cp);
}
free (lp);
break;
}
if (p -> p_name == NULL && i < NVEC) {
p -> p_name = getcpy (name);
p -> p_value = lp;
p -> p_flags = P_NIL;
p++, i++;
p -> p_name = NULL;
}
if (state != FLDEOF)
continue;
break;
case BODY:
case BODYEOF:
case FILEEOF:
break;
case LENERR:
case FMTERR:
advise (NULLCP, "format error in message");
break;
default:
advise (NULLCP, "internal error");
(void) fclose (in);
return NOTOK;
}
break;
}
(void) fclose (in);
if (p = lookup (vars, "reply-to")) {
if ((q = lookup (hdrs, "reply-to")) == NULL || q -> p_value == NULL)
q = lookup (hdrs, "from");
p -> p_value = getcpy (q ? q -> p_value : "");
p -> p_flags &= ~P_CHK;
if (debug)
fprintf (stderr, "vars[%d]: name=\"%s\" value=\"%s\"\n",
p - vars, p -> p_name, p -> p_value);
}
if (debug)
for (p = hdrs; p -> p_name; p++)
fprintf (stderr, "hdrs[%d]: name=\"%s\" value=\"%s\"\n",
p - hdrs, p -> p_name, p -> p_value);
return OK;
}
/* \f */
#define LPAREN '('
#define RPAREN ')'
static expand (s1, s2, fd)
register char *s1,
*s2;
int fd;
{
register char c,
*cp;
register struct pair *p;
if (!globbed)
glob (fd);
while (c = *s2++)
if (c != '$' || *s2 != LPAREN)
*s1++ = c;
else {
for (cp = ++s2; *s2 && *s2 != RPAREN; s2++)
continue;
if (*s2 != RPAREN) {
s2 = --cp;
continue;
}
*s2++ = 0;
if (p = lookup (vars, cp)) {
if (!parsed && (p -> p_flags & P_CHK))
(void) parse (fd);
(void) strcpy (s1, p -> p_value);
s1 += strlen (s1);
}
}
*s1 = 0;
}
/* \f */
static glob (fd)
register int fd;
{
char buffer[BUFSIZ];
struct stat st;
register struct pair *p;
if (globbed++)
return;
if (p = lookup (vars, "sender"))
p -> p_value = getcpy (sender);
if (p = lookup (vars, "address"))
p -> p_value = getcpy (addr);
if (p = lookup (vars, "size")) {
(void) sprintf (buffer, "%d",
fstat (fd, &st) != NOTOK ? (int) st.st_size : 0);
p -> p_value = getcpy (buffer);
}
if (p = lookup (vars, "info"))
p -> p_value = getcpy (info);
if (debug)
for (p = vars; p -> p_name; p++)
fprintf (stderr, "vars[%d]: name=\"%s\" value=\"%s\"\n",
p - vars, p -> p_name, p -> p_value);
}
/* \f */
static struct pair *lookup (pairs, key)
register struct pair *pairs;
register char *key;
{
register char *cp;
for (; cp = pairs -> p_name; pairs++)
if (uleq (cp, key))
return pairs;
return NULL;
}
/* \f */
static int logged_in () {
struct utmp ut;
register FILE *uf;
if (utmped)
return utmped;
if ((uf = fopen ("/etc/utmp", "r")) == NULL)
return NOTOK;
while (fread ((char *) &ut, sizeof ut, 1, uf) == 1)
if (ut.ut_name[0] != 0
&& strncmp (user, ut.ut_name, sizeof ut.ut_name) == 0) {
if (debug)
continue;
(void) fclose (uf);
return (utmped = DONE);
}
(void) fclose (uf);
return (utmped = NOTOK);
}
static int timely (t1, t2)
char *t1,
*t2;
{
#define check(t,a,b) if (t < a || t > b) return NOTOK
#define cmpar(h1,m1,h2,m2) if (h1 < h2 || (h1 == h2 && m1 < m2)) return OK
int t1hours,
t1mins,
t2hours,
t2mins;
if (sscanf (t1, "%d:%d", &t1hours, &t1mins) != 2)
return NOTOK;
check (t1hours, 0, 23);
check (t1mins, 0, 59);
if (sscanf (t2, "%d:%d", &t2hours, &t2mins) != 2)
return NOTOK;
check (t2hours, 0, 23);
check (t2mins, 0, 59);
cmpar (now -> tw_hour, now -> tw_min, t1hours, t1mins);
cmpar (t2hours, t2mins, now -> tw_hour, now -> tw_min);
return NOTOK;
}
/* \f */
static int usr_file (fd, mailbox, from)
int fd;
char *mailbox,
*from;
{
int md,
mapping;
register char *bp;
char buffer[BUFSIZ];
if (verbose)
printf ("\tdelivering to file \"%s\"", mailbox);
if (from && *from) {
(void) mbx_uucp ();
if (verbose)
printf (" (uucp style)");
(void) sprintf (buffer, "%s%s", from, ddate);
bp = buffer;
mapping = 0;
}
else {
bp = ddate;
mapping = 1;
}
if (verbose)
(void) fflush (stdout);
if ((md = mbx_open (mailbox, pw -> pw_uid, pw -> pw_gid, m_gmprot ()))
== NOTOK) {
adorn ("", "unable to open:");
return NOTOK;
}
(void) lseek (fd, (off_t)0, 0);
if (mbx_copy (mailbox, md, fd, mapping, bp, verbose) == NOTOK) {
adorn ("", "error writing to:");
return NOTOK;
}
(void) mbx_close (mailbox, md);
if (verbose) {
printf (", done.\n");
(void) fflush (stdout);
}
return OK;
}
/* \f */
#ifdef notdef
static int usr_hook (fd, mailbox)
int fd;
char *mailbox;
{
int i,
vecp;
char receive[BUFSIZ],
tmpfil[BUFSIZ],
*vec[NVEC];
if ((fd = copyfile (fd, tmpfil, 0)) == NOTOK) {
if (verbose)
adorn ("unable to copy message; skipping hook\n");
return NOTOK;
}
(void) chown (tmpfil, pw -> pw_uid, pw -> pw_gid);
vecp = 1;
(void) sprintf (receive, "%s/.mh_receive", pw -> pw_dir);
switch (access (receive, 01)) {
case NOTOK:
(void) sprintf (receive, "%s/bin/rcvmail", pw -> pw_dir);
if (access (receive, 01) == NOTOK) {
(void) unlink (tmpfil);
if (verbose) {
printf ("\tnot present\n");
(void) fflush (stdout);
}
return NOTOK;
}
vec[vecp++] = addr;
vec[vecp++] = tmpfil;
vec[vecp++] = sender;
break;
default:
vec[vecp++] = tmpfil;
vec[vecp++] = mailbox;
vec[vecp++] = home;
vec[vecp++] = addr;
vec[vecp++] = sender;
break;
}
vec[0] = r1bindex (receive, '/');
vec[vecp] = NULL;
i = usr_pipe (fd, "rcvmail", receive, vec);
(void) unlink (tmpfil);
return i;
}
#endif /* notdef */
/* \f */
static int usr_pipe (fd, cmd, pgm, vec)
int fd;
char *cmd,
*pgm,
**vec;
{
int bytes,
i,
child_id,
status;
struct stat st;
if (verbose) {
printf ("\tdelivering to pipe \"%s\"", cmd);
(void) fflush (stdout);
}
(void) lseek (fd, (off_t)0, 0);
for (i = 0; (child_id = fork ()) == NOTOK && i < 5; i++)
sleep (5);
switch (child_id) {
case NOTOK:
adorn ("fork", "unable to");
return NOTOK;
case OK:
if (fd != 0)
(void) dup2 (fd, 0);
(void) freopen ("/dev/null", "w", stdout);
(void) freopen ("/dev/null", "w", stderr);
if (fd != 3)
(void) dup2 (fd, 3);
closefds (4);
#ifdef TIOCNOTTY
if ((fd = open ("/dev/tty", 2)) != NOTOK) {
(void) ioctl (fd, TIOCNOTTY, NULLCP);
(void) close (fd);
}
#endif /* TIOCNOTTY */
#ifdef BSD42
(void) setpgrp (0, getpid ());
#endif /* BSD42 */
*environ = NULL;
(void) m_putenv ("USER", pw -> pw_name);
(void) m_putenv ("HOME", pw -> pw_dir);
(void) m_putenv ("SHELL", pw -> pw_shell);
execvp (pgm, vec);
_exit (-1);
default:
switch (setjmp (myctx)) {
case OK:
(void) signal (SIGALRM, alrmser);
bytes = fstat (fd, &st) != NOTOK ? (int) st.st_size : 100;
if (bytes <= 0)
bytes = 100;
(void) alarm ((unsigned) (bytes * 60 + 300));
status = pidwait (child_id, OK);
(void) alarm (0);
#ifdef MMDFI
if (status == RP_MOK || status == RP_OK)
status = 0;
#endif /* MMDFI */
if (verbose) {
if (status == 0)
printf (", wins.\n");
else
if ((status & 0xff00) == 0xff00)
printf (", system error\n");
else
(void) pidstatus (status, stdout, ", loses");
(void) fflush (stdout);
}
return (status == 0 ? OK : NOTOK);
default:
#ifndef BSD42
(void) kill (child_id, SIGKILL);
#else /* BSD42 */
(void) killpg (child_id, SIGKILL);
#endif /* BSD42 */
if (verbose) {
printf (", timed-out; terminated\n");
(void) fflush (stdout);
}
return NOTOK;
}
}
}
/* \f */
/* ARGSUSED */
static TYPESIG alrmser (i)
int i;
{
longjmp (myctx, DONE);
}
/* \f */
static copyinfo (fp, from)
register FILE *fp;
char *from;
{
int i;
register char *cp;
static char buffer[BUFSIZ];
if (unixfrom) /* interface from copyfile */
strcpy (from, unixfrom);
else if (fgets (from, BUFSIZ, fp) == NULL)
adios (NULLCP, "no message");
if (strncmp (from, "From ", i = strlen ("From "))) {
rewind (fp);
*from = 0;
return;
}
(void) strcpy (buffer, from + i);
if (cp = index (buffer, '\n')) {
*cp = 0;
cp -= 24;
if (cp < buffer)
cp = buffer;
}
else
cp = buffer;
*cp = 0;
for (cp = buffer + strlen (buffer) - 1; cp >= buffer; cp--)
if (isspace (*cp))
*cp = 0;
else
break;
sender = buffer;
rewind (fp);
}
/* \f */
static int copyfile (qd, tmpfil, fold)
int qd,
fold;
register char *tmpfil;
{
register int i,
first = 0,
fd1,
fd2;
char buffer[BUFSIZ];
register FILE *qfp,
*ffp;
(void) strcpy (tmpfil, m_tmpfil (invo_name));
if ((fd1 = creat (tmpfil, 0600)) == NOTOK)
return NOTOK;
(void) close (fd1);
if ((fd1 = open (tmpfil, 2)) == NOTOK)
return NOTOK;
if (!fold) {
while ((i = read (qd, buffer, sizeof buffer)) > 0)
if (write (fd1, buffer, i) != i) {
you_lose: ;
(void) close (fd1);
(void) unlink (tmpfil);
return NOTOK;
}
if (i == NOTOK)
goto you_lose;
(void) lseek (fd1, (off_t)0, 0);
return fd1;
}
if ((fd2 = dup (qd)) == NOTOK) {
(void) close (fd1);
return NOTOK;
}
if ((qfp = fdopen (fd2, "r")) == NULL) {
(void) close (fd1);
(void) close (fd2);
return NOTOK;
}
if ((fd2 = dup (fd1)) == NOTOK) {
(void) close (fd1);
(void) fclose (qfp);
return NOTOK;
}
if ((ffp = fdopen (fd2, "r+")) == NULL) {
(void) close (fd1);
(void) close (fd2);
(void) fclose (qfp);
return NOTOK;
}
i = strlen ("From ");
while (fgets (buffer, sizeof buffer, qfp)) {
if (!strncmp (buffer, "From ", i))
if (first == 0) {
#ifdef RPATHS
register char *fp, *cp, *hp, *ep;
#endif
unixfrom = getcpy (buffer); /* save for later */
#ifndef RPATHS
continue; /* but don't put in file */
#else
hp = cp = index (fp = unixfrom + i, ' ');
while (hp = index (++hp, 'r'))
if (uprf (hp, "remote from")) {
hp = rindex (hp, ' ');
break;
}
if (hp) {
ep = rindex (++hp, '\n');
sprintf (buffer, "Return-Path: %.*s!%.*s\n",
ep - hp, hp,
cp - fp, fp);
}
else
sprintf (buffer, "Return-Path: %.*s\n",
cp - fp, fp);
#endif
}
#ifdef notdef /* mbx_copy does this */
else
putc ('>', ffp);
#endif /* notdef */
first++;
fputs (buffer, ffp);
if (ferror (ffp)) {
(void) close (fd1);
(void) fclose (ffp);
(void) fclose (qfp);
return NOTOK;
}
}
(void) fclose (ffp);
if (ferror (qfp)) {
(void) close (fd1);
(void) fclose (qfp);
return NOTOK;
}
(void) fclose (qfp);
(void) lseek (fd1, (off_t)0, 0);
return fd1;
}
/* \f */
/* VARARGS2 */
static void adorn (what, fmt, a, b, c, d, e, f)
char *what,
*fmt,
*a,
*b,
*c,
*d,
*e,
*f;
{
char *cp = invo_name;
if (!verbose)
return;
printf (", ");
invo_name = NULL;
advise (what, fmt, a, b, c, d, e, f);
invo_name = cp;
}
/* \f */
#ifdef MSGID
static int check_msgid (fd, file)
int fd;
char *file;
{
int fd1,
state;
char *cp,
buf[BUFSIZ],
name[NAMESZ];
datum key,
value;
DBM *db;
FILE *in;
if ((fd1 = dup (fd)) == NOTOK)
return NOTOK;
if ((in = fdopen (fd1, "r")) == NULL) {
(void) close (fd1);
return NOTOK;
}
rewind (in);
for (state = FLD;;) {
switch (state = m_getfld (state, name, buf, sizeof buf, in)) {
case FLD:
case FLDPLUS:
case FLDEOF:
if (!uleq (name, "Message-ID")) {
while (state == FLDPLUS)
state = m_getfld (state, name, buf, sizeof buf, in);
continue;
}
cp = add (buf, NULLCP);
while (state == FLDPLUS) {
state = m_getfld (state, name, buf, sizeof buf, in);
cp = add (buf, cp);
}
key.dsize = strlen (key.dptr = trimcpy (cp)) + 1;
free (cp);
cp = key.dptr;
if ((db = dbm_open (file, O_RDWR | O_CREAT, 0600)) == NULL) {
advise (file, "unable to perform dbm_open on");
out: ;
free (cp);
(void) fclose (in);
return NOTOK;
}
#ifdef FCNTL
{
struct flock fl;
fl.l_type = F_WRLCK;
fl.l_whence = 0;
fl.l_start = 0;
fl.l_len = 0;
if (fcntl (dbm_pagfno (db), F_SETLK, &fl) == -1) {
advise (file, "unable to perform flock on");
goto out;
}
}
#else
#ifdef LOCKF
if (lockf (dbm_pagfno (db), F_LOCK) == NOTOK) {
advise (file, "unable to perform lockf on");
goto out;
}
#else
if (flock (dbm_pagfno (db), LOCK_EX) == NOTOK) {
advise (file, "unable to perform flock on");
goto out;
}
#endif
#endif
value = dbm_fetch (db, key);
if (value.dptr != NULL) {
if (debug)
advise (NULLCP,
"Message-ID: %s already received on\n\tDate: %s",
cp, value.dptr);
free (cp);
(void) fclose (in);
return DONE;
}
value.dsize = strlen (value.dptr =
ddate + sizeof "Delivery-Date:") + 1;
if (dbm_store (db, key, value, DBM_INSERT))
advise (file, "possibly corrupt file");
dbm_close (db);
free (cp);
break;
case BODY:
case BODYEOF:
case FILEEOF:
break;
case LENERR:
case FMTERR:
default:
break;
}
break;
}
(void) fclose (in);
return OK;
}
#endif
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.