long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
{
struct stat sbuf;
int fd = -1;
int e;
char tmp[MAILTMPLEN];
MAILSTREAM *ts = default_proto (T);
if (compare_cstring (mailbox,"INBOX") && dummy_file (tmp,mailbox) &&
((fd = open (tmp,O_RDONLY,NIL)) < 0)) {
if ((e = errno) == ENOENT) /* failed, was it no such file? */
mm_notify (stream,"[TRYCREATE] Must create mailbox before append",
(long) NIL);
sprintf (tmp,"%.80s: %.80s",strerror (e),mailbox);
mm_log (tmp,ERROR); /* pass up error */
return NIL; /* always fails */
}
if (fd >= 0) { /* found file? */
fstat (fd,&sbuf); /* get its size */
close (fd); /* toss out the fd */
if (sbuf.st_size) ts = NIL; /* non-empty file? */
}
if (ts) return (*ts->dtb->append) (stream,mailbox,af,data);
sprintf (tmp,"Indeterminate mailbox format: %.80s",mailbox);
mm_log (tmp,ERROR);
return NIL;
}
long dummy_rename (MAILSTREAM *stream,char *old,char *newname)
{
struct stat sbuf;
char c,*s,tmp[MAILTMPLEN],mbx[MAILTMPLEN],oldname[MAILTMPLEN];
long ret = NIL;
/* no trailing \ allowed */
if (!dummy_file (oldname,old) || !(s = dummy_file (mbx,newname)) ||
((s = strrchr (s,'\\')) && !s[1])) {
sprintf (mbx,"Can't rename %.80s to %.80s: invalid name",old,newname);
mm_log (mbx,ERROR);
return NIL;
}
/* found superior to destination name? */
if (s && (s != mbx) && ((mbx[1] != ':') || (s != mbx + 2))) {
c = s[1]; /* remember character after delimiter */
*s = s[1] = '\0'; /* tie off name at delimiter */
/* name doesn't exist, create it */
if (stat (mbx,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) {
*s = '\\'; /* restore delimiter */
if (!dummy_create (stream,mbx)) return NIL;
}
else *s = '\\'; /* restore delimiter */
s[1] = c; /* restore character after delimiter */
}
/* rename of non-ex INBOX creates dest */
if (!compare_cstring (old,"INBOX") && stat (oldname,&sbuf))
return dummy_create (NIL,mbx);
if (rename (oldname,mbx)) {
sprintf (tmp,"Can't rename mailbox %.80s to %.80s: %.80s",old,newname,
strerror (errno));
mm_log (tmp,ERROR);
return NIL;
}
return LONGT; /* return success */
}
MAILSTREAM *dummy_open (MAILSTREAM *stream)
{
int fd;
char err[MAILTMPLEN],tmp[MAILTMPLEN];
struct stat sbuf;
/* OP_PROTOTYPE call */
if (!stream) return &dummyproto;
err[0] = '\0'; /* no error message yet */
/* can we open the file? */
if (!dummy_file (tmp,stream->mailbox))
sprintf (err,"Can't open this name: %.80s",stream->mailbox);
else if ((fd = open (tmp,O_RDONLY,NIL)) < 0) {
/* no, error unless INBOX */
if (compare_cstring (stream->mailbox,"INBOX"))
sprintf (err,"%.80s: %.80s",strerror (errno),stream->mailbox);
}
else { /* file had better be empty then */
fstat (fd,&sbuf); /* sniff at its size */
close (fd);
if (sbuf.st_size) /* bogus format if non-empty */
sprintf (err,"%.80s (file %.80s) is not in valid mailbox format",
stream->mailbox,tmp);
}
if (err[0]) { /* if an error happened */
mm_log (err,stream->silent ? WARN : ERROR);
return NIL;
}
else if (!stream->silent) { /* only if silence not requested */
mail_exists (stream,0); /* say there are 0 messages */
mail_recent (stream,0); /* and certainly no recent ones! */
stream->uid_validity = time (0);
}
stream->inbox = T; /* note that it's an INBOX */
return stream; /* return success */
}
long sm_unsubscribe (char *mailbox)
{
FILE *f,*tf;
char *s,tmp[MAILTMPLEN],old[MAILTMPLEN],newname[MAILTMPLEN];
int found = NIL;
/* canonicalize INBOX */
if (!compare_cstring (mailbox,"INBOX")) mailbox = "INBOX";
SUBSCRIPTIONFILE (old); /* make file names */
SUBSCRIPTIONTEMP (newname);
if (!(f = fopen (old,"r"))) /* open subscription database */
MM_LOG ("No subscriptions",ERROR);
else if (!(tf = fopen (newname,"w"))) {
MM_LOG ("Can't create subscription temporary file",ERROR);
fclose (f);
}
else {
while (fgets (tmp,MAILTMPLEN,f)) {
if (s = strchr (tmp,'\n')) *s = '\0';
if (strcmp (tmp,mailbox)) fprintf (tf,"%s\n",tmp);
else found = T; /* found the name */
}
fclose (f);
if (fclose (tf) == EOF)
MM_LOG ("Can't write subscription temporary file",ERROR);
else if (!found) {
sprintf (tmp,"Not subscribed to mailbox %.80s",mailbox);
MM_LOG (tmp,ERROR); /* error if at end */
}
else if (!unlink (old) && !rename (newname,old)) return LONGT;
else MM_LOG ("Can't update subscription database",ERROR);
}
return NIL;
}
long sm_subscribe (char *mailbox)
{
FILE *f;
char *s,db[MAILTMPLEN],tmp[MAILTMPLEN];
/* canonicalize INBOX */
if (!compare_cstring (mailbox,"INBOX")) mailbox = "INBOX";
SUBSCRIPTIONFILE (db); /* open subscription database */
if (f = fopen (db,"r")) { /* make sure not already there */
while (fgets (tmp,MAILTMPLEN,f)) {
if (s = strchr (tmp,'\n')) *s = '\0';
if (!strcmp (tmp,mailbox)) {/* already subscribed? */
sprintf (tmp,"Already subscribed to mailbox %.80s",mailbox);
MM_LOG (tmp,ERROR);
fclose (f);
return NIL;
}
}
fclose (f);
}
if (!(f = fopen (db,"a"))) { /* append new entry */
MM_LOG ("Can't append to subscription database",ERROR);
return NIL;
}
fprintf (f,"%s\n",mailbox);
return (fclose (f) == EOF) ? NIL : T;
}
long dummy_create (MAILSTREAM *stream,char *mailbox)
{
char tmp[MAILTMPLEN];
if (compare_cstring (mailbox,"INBOX") && dummy_file (tmp,mailbox))
return dummy_create_path (stream,tmp,NIL);
sprintf (tmp,"Can't create %.80s: invalid name",mailbox);
mm_log (tmp,ERROR);
return NIL;
}
long smtp_ehlo (SENDSTREAM *stream,char *host,NETMBX *mb)
{
unsigned long i,j;
long flags = (mb->secflag ? AU_SECURE : NIL) |
(mb->authuser[0] ? AU_AUTHUSER : NIL);
char *s,*t,*r,tmp[MAILTMPLEN];
/* clear ESMTP data */
memset (&ESMTP,0,sizeof (ESMTP));
if (mb->loser) return 500; /* never do EHLO if a loser */
sprintf (tmp,"EHLO %s",host); /* build the complete command */
if (stream->debug) mm_dlog (tmp);
strcat (tmp,"\015\012");
/* send the command */
if (!net_soutr (stream->netstream,tmp))
return smtp_fake (stream,"SMTP connection broken (EHLO)");
/* got an OK reply? */
do if ((i = smtp_reply (stream)) == SMTPOK) {
/* hack for AUTH= */
if (stream->reply[4] && stream->reply[5] && stream->reply[6] &&
stream->reply[7] && (stream->reply[8] == '=')) stream->reply[8] = ' ';
/* get option code */
if (!(s = strtok_r (stream->reply+4," ",&r)));
/* have option, does it have a value */
else if ((t = strtok_r (NIL," ",&r)) && *t) {
/* EHLO options which take arguments */
if (!compare_cstring (s,"SIZE")) {
if (isdigit (*t)) ESMTP.size.limit = strtoul (t,&t,10);
ESMTP.size.ok = T;
}
else if (!compare_cstring (s,"DELIVERBY")) {
if (isdigit (*t)) ESMTP.deliverby.minby = strtoul (t,&t,10);
ESMTP.deliverby.ok = T;
}
else if (!compare_cstring (s,"ATRN")) {
ESMTP.atrn.domains = cpystr (t);
ESMTP.atrn.ok = T;
}
else if (!compare_cstring (s,"AUTH"))
do if ((j = mail_lookup_auth_name (t,flags)) &&
(--j < MAXAUTHENTICATORS)) ESMTP.auth |= (1 << j);
while ((t = strtok_r (NIL," ",&r)) && *t);
}
/* EHLO options which do not take arguments */
else if (!compare_cstring (s,"SIZE")) ESMTP.size.ok = T;
else if (!compare_cstring (s,"8BITMIME")) ESMTP.eightbit.ok = T;
else if (!compare_cstring (s,"DSN")) ESMTP.dsn.ok = T;
else if (!compare_cstring (s,"ATRN")) ESMTP.atrn.ok = T;
else if (!compare_cstring (s,"SEND")) ESMTP.service.send = T;
else if (!compare_cstring (s,"SOML")) ESMTP.service.soml = T;
else if (!compare_cstring (s,"SAML")) ESMTP.service.saml = T;
else if (!compare_cstring (s,"EXPN")) ESMTP.service.expn = T;
else if (!compare_cstring (s,"HELP")) ESMTP.service.help = T;
else if (!compare_cstring (s,"TURN")) ESMTP.service.turn = T;
else if (!compare_cstring (s,"ETRN")) ESMTP.service.etrn = T;
else if (!compare_cstring (s,"STARTTLS")) ESMTP.service.starttls = T;
else if (!compare_cstring (s,"RELAY")) ESMTP.service.relay = T;
else if (!compare_cstring (s,"PIPELINING")) ESMTP.service.pipe = T;
else if (!compare_cstring (s,"ENHANCEDSTATUSCODES"))
ESMTP.service.ensc = T;
else if (!compare_cstring (s,"BINARYMIME")) ESMTP.service.bmime = T;
else if (!compare_cstring (s,"CHUNKING")) ESMTP.service.chunk = T;
}
while ((i < 100) || (stream->reply[3] == '-'));
/* disable LOGIN if PLAIN also advertised */
if ((j = mail_lookup_auth_name ("PLAIN",NIL)) && (--j < MAXAUTHENTICATORS) &&
(ESMTP.auth & (1 << j)) &&
(j = mail_lookup_auth_name ("LOGIN",NIL)) && (--j < MAXAUTHENTICATORS))
ESMTP.auth &= ~(1 << j);
return i; /* return the response code */
}
SENDSTREAM *smtp_open_full (NETDRIVER *dv,char **hostlist,char *service,
unsigned long port,long options)
{
SENDSTREAM *stream = NIL;
long reply;
char *s,tmp[MAILTMPLEN];
NETSTREAM *netstream;
NETMBX mb;
if (!(hostlist && *hostlist)) mm_log ("Missing SMTP service host",ERROR);
/* maximum domain name is 64 characters */
else do if (strlen (*hostlist) < SMTPMAXDOMAIN) {
sprintf (tmp,"{%.1000s}",*hostlist);
if (!mail_valid_net_parse_work (tmp,&mb,service ? service : "smtp") ||
mb.anoflag || mb.readonlyflag) {
sprintf (tmp,"Invalid host specifier: %.80s",*hostlist);
mm_log (tmp,ERROR);
}
else { /* light tryssl flag if requested */
mb.trysslflag = (options & SOP_TRYSSL) ? T : NIL;
/* explicit port overrides all */
if (mb.port) port = mb.port;
/* else /submit overrides port argument */
else if (!compare_cstring (mb.service,"submit")) {
port = SUBMITTCPPORT; /* override port, use IANA name */
strcpy (mb.service,"submission");
}
/* else port argument overrides SMTP port */
else if (!port) port = smtp_port ? smtp_port : SMTPTCPPORT;
if (netstream = /* try to open ordinary connection */
net_open (&mb,dv,port,
(NETDRIVER *) mail_parameters (NIL,GET_SSLDRIVER,NIL),
"*smtps",smtp_sslport ? smtp_sslport : SMTPSSLPORT)) {
stream = (SENDSTREAM *) memset (fs_get (sizeof (SENDSTREAM)),0,
sizeof (SENDSTREAM));
stream->netstream = netstream;
stream->host = cpystr ((long) mail_parameters (NIL,GET_TRUSTDNS,NIL) ?
net_host (netstream) : mb.host);
stream->debug = (mb.dbgflag || (options & OP_DEBUG)) ? T : NIL;
if (options & SOP_SECURE) mb.secflag = T;
/* get name of local host to use */
s = compare_cstring ("localhost",mb.host) ?
net_localhost (netstream) : "localhost";
do reply = smtp_reply (stream);
while ((reply < 100) || (stream->reply[3] == '-'));
if (reply != SMTPGREET){/* get SMTP greeting */
sprintf (tmp,"SMTP greeting failure: %.80s",stream->reply);
mm_log (tmp,ERROR);
stream = smtp_close (stream);
}
/* try EHLO first, then HELO */
else if (((reply = smtp_ehlo (stream,s,&mb)) != SMTPOK) &&
((reply = smtp_send (stream,"HELO",s)) != SMTPOK)) {
sprintf (tmp,"SMTP hello failure: %.80s",stream->reply);
mm_log (tmp,ERROR);
stream = smtp_close (stream);
}
else {
NETDRIVER *ssld =(NETDRIVER *)mail_parameters(NIL,GET_SSLDRIVER,NIL);
sslstart_t stls = (sslstart_t) mail_parameters(NIL,GET_SSLSTART,NIL);
ESMTP.ok = T; /* ESMTP server, start TLS if present */
if (!dv && stls && ESMTP.service.starttls &&
!mb.sslflag && !mb.notlsflag &&
(smtp_send (stream,"STARTTLS",NIL) == SMTPGREET)) {
mb.tlsflag = T; /* TLS OK, get into TLS at this end */
stream->netstream->dtb = ssld;
/* TLS started, negotiate it */
if (!(stream->netstream->stream = (*stls)
(stream->netstream->stream,mb.host,
(mb.tlssslv23 ? NIL : NET_TLSCLIENT) |
(mb.novalidate ? NET_NOVALIDATECERT:NIL)))){
/* TLS negotiation failed after STARTTLS */
sprintf (tmp,"Unable to negotiate TLS with this server: %.80s",
mb.host);
mm_log (tmp,ERROR);
/* close without doing QUIT */
if (stream->netstream) net_close (stream->netstream);
stream->netstream = NIL;
stream = smtp_close (stream);
}
/* TLS OK, re-negotiate EHLO */
else if ((reply = smtp_ehlo (stream,s,&mb)) != SMTPOK) {
sprintf (tmp,"SMTP EHLO failure after STARTTLS: %.80s",
stream->reply);
mm_log (tmp,ERROR);
stream = smtp_close (stream);
}
else ESMTP.ok = T; /* TLS OK and EHLO successful */
}
else if (mb.tlsflag) {/* user specified /tls but can't do it */
sprintf (tmp,"TLS unavailable with this server: %.80s",mb.host);
mm_log (tmp,ERROR);
stream = smtp_close (stream);
}
/* remote name for authentication */
if (stream && ((mb.secflag || mb.user[0]))) {
if (ESMTP.auth) { /* use authenticator? */
if ((long) mail_parameters (NIL,GET_TRUSTDNS,NIL)) {
/* remote name for authentication */
strncpy (mb.host,
(long) mail_parameters (NIL,GET_SASLUSESPTRNAME,NIL) ?
net_remotehost (netstream) : net_host (netstream),
NETMAXHOST-1);
mb.host[NETMAXHOST-1] = '\0';
}
if (!smtp_auth (stream,&mb,tmp)) stream = smtp_close (stream);
}
else { /* no available authenticators? */
sprintf (tmp,"%sSMTP authentication not available: %.80s",
mb.secflag ? "Secure " : "",mb.host);
mm_log (tmp,ERROR);
stream = smtp_close (stream);
}
}
}
}
}
} while (!stream && *++hostlist);
if (stream) { /* set stream options if have a stream */
if (options &(SOP_DSN | SOP_DSN_NOTIFY_FAILURE | SOP_DSN_NOTIFY_DELAY |
SOP_DSN_NOTIFY_SUCCESS | SOP_DSN_RETURN_FULL)) {
ESMTP.dsn.want = T;
if (options & SOP_DSN_NOTIFY_FAILURE) ESMTP.dsn.notify.failure = T;
if (options & SOP_DSN_NOTIFY_DELAY) ESMTP.dsn.notify.delay = T;
if (options & SOP_DSN_NOTIFY_SUCCESS) ESMTP.dsn.notify.success = T;
if (options & SOP_DSN_RETURN_FULL) ESMTP.dsn.full = T;
}
if (options & SOP_8BITMIME) ESMTP.eightbit.want = T;
}
return stream;
}
int deliver (FILE *f,unsigned long msglen,char *user)
{
MAILSTREAM *ds = NIL;
char *s,*mailbox,tmp[MAILTMPLEN],path[MAILTMPLEN];
STRING st;
struct stat sbuf;
/* have a mailbox specifier? */
if ((mailbox = strchr (user,'+')) != NULL) {
*mailbox++ = '\0'; /* yes, tie off user name */
if (!*mailbox || !compare_cstring ((unsigned char *) mailbox,"INBOX"))
mailbox = NIL; /* user+ and user+INBOX same as user */
}
if (!*user) user = myusername ();
else if (strcmp (user,myusername ()))
return fail ("can't deliver to other user",EX_CANTCREAT);
sprintf (tmp,"delivering to %.80s+%.80s",user,mailbox ? mailbox : "INBOX");
mm_dlog (tmp);
/* prepare stringstruct */
INIT (&st,file_string,(void *) f,msglen);
if (mailbox) { /* non-INBOX name */
switch (mailbox[0]) { /* make sure a valid name */
default: /* other names, try to deliver if not INBOX */
if ((strlen (mailbox) <= NETMAXMBX) &&
!strstr (mailbox,"..") && !strstr (mailbox,"//") &&
!strstr (mailbox,"/~") && mailboxfile (path,mailbox) && path[0] &&
!deliver_safely (NIL,&st,mailbox,path,tmp)) return NIL;
case '%': case '*': /* wildcards not valid */
case '/': /* absolute path names not valid */
case '~': /* user names not valid */
sprintf (tmp,"invalid mailbox name %.80s+%.80s",user,mailbox);
mm_log (tmp,WARN);
break;
}
mm_dlog ("retrying delivery to INBOX");
SETPOS (&st,0); /* rewind stringstruct just in case */
}
/* no -I, resolve "INBOX" into path */
if (mailboxfile (path,mailbox = "INBOX") && !path[0]) {
/* clear box, get generic INBOX prototype */
if (!(ds = mail_open (NIL,"INBOX",OP_PROTOTYPE)))
fatal ("no INBOX prototype");
/* standard system driver? */
if (!strcmp (ds->dtb->name,"unix") || !strcmp (ds->dtb->name,"mmdf")) {
strcpy (path,sysinbox ());/* use system INBOX */
if (!lstat (path,&sbuf)) /* deliver to existing system INBOX */
return deliver_safely (ds,&st,mailbox,path,tmp);
}
else { /* other driver, try ~/INBOX */
if ((mailboxfile (path,"&&&&&") == path) &&
(s = strstr (path,"&&&&&")) && strcpy (s,"INBOX") &&
!lstat (path,&sbuf)){ /* deliver to existing ~/INBOX */
sprintf (tmp,"#driver.%s/INBOX",ds->dtb->name);
return deliver_safely (ds,&st,cpystr (tmp),path,tmp);
}
}
/* not dummy, deliver to driver imputed path */
if (strcmp (ds->dtb->name,"dummy"))
return (ibxpath (ds,&mailbox,path) && !lstat (path,&sbuf)) ?
deliver_safely (ds,&st,mailbox,path,tmp) :
fail ("unable to resolve INBOX path",EX_CANTCREAT);
/* dummy, empty imputed append path exist? */
if (ibxpath (ds = default_proto (T),&mailbox,path) &&
!lstat (path,&sbuf) && !sbuf.st_size)
return deliver_safely (ds,&st,mailbox,path,tmp);
/* impute path that we will create */
if (!ibxpath (ds = default_proto (NIL),&mailbox,path))
return fail ("unable to resolve INBOX",EX_CANTCREAT);
}
/* black box, must create, get create proto */
else if (lstat (path,&sbuf)) ds = default_proto (NIL);
else { /* black box, existing file */
/* empty file, get append prototype */
if (!sbuf.st_size) ds = default_proto (T);
/* non-empty, get prototype from its data */
else if (!(ds = mail_open (NIL,"INBOX",OP_PROTOTYPE)))
fatal ("no INBOX prototype");
/* error if unknown format */
if (!strcmp (ds->dtb->name,"phile"))
return fail ("unknown format INBOX",EX_UNAVAILABLE);
/* otherwise can deliver to it */
return deliver_safely (ds,&st,mailbox,path,tmp);
}
sprintf (tmp,"attempting to create mailbox %.80s path %.80s",mailbox,path);
mm_dlog (tmp);
/* supplicate to the Evil One */
if (!path_create (ds,path)) return fail ("can't create INBOX",EX_CANTCREAT);
sprintf (tmp,"created %.80s",path);
mm_dlog (tmp);
/* deliver the message */
return deliver_safely (ds,&st,mailbox,path,tmp);
}
int main (int argc,char *argv[])
{
FILE *f = NIL;
int pid,c,ret = 0;
unsigned long msglen,status = 0;
char *s,tmp[MAILTMPLEN];
uid_t ruid = getuid ();
struct passwd *pwd;
openlog ("tmail",LOG_PID,LOG_MAIL);
#include "linkage.c"
/* make sure have some arguments */
if (--argc < 1) _exit (fail ("usage: tmail [-D] user[+folder]",EX_USAGE));
/* process all flags */
while (argc && (*(s = *++argv)) == '-') {
argc--; /* gobble this argument */
switch (s[1]) { /* what is this flag? */
case 'D': /* debug */
debug = T; /* don't fork */
break;
case 'I': /* inbox specifier */
if (inbox || format) _exit (fail ("duplicate -b or -I",EX_USAGE));
if (argc--) inbox = cpystr (*++argv);
else _exit (fail ("missing argument to -I",EX_USAGE));
break;
case 'f': /* new name for this flag */
case 'r': /* flag giving return path */
if (sender) _exit (fail ("duplicate -f or -r",EX_USAGE));
if (argc--) sender = cpystr (*++argv);
else _exit (fail ("missing argument to -f or -r",EX_USAGE));
break;
case 'b': /* create INBOX in this format */
if (inbox || format) _exit (fail ("duplicate -b or -I",EX_USAGE));
if (!argc--) _exit (fail ("missing argument to -b",EX_USAGE));
if (!(format = mail_parameters (NIL,GET_DRIVER,*++argv)))
_exit (fail ("unknown format to -b",EX_USAGE));
else if (!(format->flags & DR_LOCAL) ||
!compare_cstring (format->name,"dummy"))
_exit (fail ("invalid format to -b",EX_USAGE));
break;
/* following flags are undocumented */
case 'p': /* precedence for quota */
if (s[2] && ((s[2] == '-') || isdigit (s[2]))) precedence = atol (s + 2);
else if (argc-- && ((*(s = *++argv) == '-') || isdigit (*s)))
precedence = atol (s);
else _exit (fail ("missing argument to -p",EX_USAGE));
break;
case 'd': /* obsolete flag meaning multiple users */
break; /* ignore silently */
/* -s has been deprecated and replaced by the -s and -k flags in dmail.
* dmail's -k flag does what -s once did in tmail; dmail's -s flag
* takes no argument and just sets \Seen. Flag setting is more properly
* done in dmail which runs as the user and is clearly at the user's
* behest. Since tmail runs privileged, -s would have to be disabled
* unless the caller is also privileged.
*/
case 's': /* obsolete flag meaning delivery flags */
if (!argc--) /* takes an argument */
_exit (fail ("missing argument to deprecated flag",EX_USAGE));
syslog (LOG_INFO,"tmail called with deprecated flag: -s %.200s",*++argv);
break;
default: /* anything else */
_exit (fail ("unknown switch",EX_USAGE));
}
}
if (!argc) ret = fail ("no recipients",EX_USAGE);
else if (!(f = tmpfile ())) ret = fail ("can't make temp file",EX_TEMPFAIL);
else { /* build delivery headers */
if (sender) fprintf (f,"Return-Path: <%s>\015\012",sender);
/* start Received line: */
fprintf (f,"Received: via tmail-%s.%s",CCLIENTVERSION,version);
/* not root or daemon? */
if (ruid && !((pwd = getpwnam ("daemon")) && (ruid == pwd->pw_uid))) {
pwd = getpwuid (ruid); /* get unprivileged user's information */
if (inbox || format) {
if (pwd) sprintf (tmp,"user %.80s",pwd->pw_name);
else sprintf (tmp,"UID %ld",(long) ruid);
strcat (tmp," is not privileged to use -b or -I");
_exit (fail (tmp,EX_USAGE));
}
fputs (" (invoked by ",f);
if (pwd) fprintf (f,"user %s",pwd->pw_name);
else fprintf (f,"UID %ld",(long) ruid);
fputs (")",f);
}
/* write "for" if single recipient */
if (argc == 1) fprintf (f," for %s",*argv);
fputs ("; ",f);
rfc822_date (tmp);
fputs (tmp,f);
fputs ("\015\012",f);
/* copy text from standard input */
if (!fgets (tmp,MAILTMPLEN-1,stdin) || !(s = strchr (tmp,'\n')) ||
(s == tmp) || s[1]) _exit (fail ("bad first message line",EX_USAGE));
if (s[-1] == '\015') { /* nuke leading "From " line */
if ((tmp[0] != 'F') || (tmp[1] != 'r') || (tmp[2] != 'o') ||
(tmp[3] != 'm') || (tmp[4] != ' ')) fputs (tmp,f);
while ((c = getchar ()) != EOF) putc (c,f);
}
else {
mm_log ("tmail called with LF-only newlines",WARN);
if ((tmp[0] != 'F') || (tmp[1] != 'r') || (tmp[2] != 'o') ||
(tmp[3] != 'm') || (tmp[4] != ' ')) {
*s++ = '\015'; /* overwrite NL with CRLF */
*s++ = '\012';
*s = '\0'; /* tie off string */
fputs (tmp,f); /* write line */
}
/* copy text from standard input */
while ((c = getchar ()) != EOF) {
/* add CR if needed */
if (c == '\012') putc ('\015',f);
putc (c,f);
}
}
msglen = ftell (f); /* size of message */
fflush (f); /* make sure all changes written out */
if (ferror (f)) ret = fail ("error writing temp file",EX_TEMPFAIL);
else if (!msglen) ret = fail ("empty message",EX_TEMPFAIL);
/* single delivery */
else if (argc == 1) ret = deliver (f,msglen,*argv);
else do { /* multiple delivery uses daughter forks */
if ((pid = fork ()) < 0) ret = fail (strerror (errno),EX_OSERR);
else if (pid) { /* mother process */
grim_pid_reap_status (pid,NIL,(void *) status);
/* normal termination? */
if (!ret) ret = (status & 0xff) ? EX_SOFTWARE : (status & 0xff00) >> 8;
}
/* daughter process */
else _exit (deliver (f,msglen,*argv));
} while (--argc && *argv++);
mm_dlog (ret ? "error in delivery" : "all recipients delivered");
}
