static int doit(stralloc *work,const char *rule)
{
char ch;
unsigned int colon;
unsigned int prefixlen;
ch = *rule++;
if ((ch != '?') && (ch != '=') && (ch != '*') && (ch != '-')) return 1;
colon = str_chr(rule,':');
if (!rule[colon]) return 1;
if (work->len < colon) return 1;
prefixlen = work->len - colon;
if ((ch == '=') && prefixlen) return 1;
if (case_diffb(rule,colon,work->s + prefixlen)) return 1;
if (ch == '?') {
if (byte_chr(work->s,prefixlen,'.') < prefixlen) return 1;
if (byte_chr(work->s,prefixlen,':') < prefixlen) return 1;
if (byte_chr(work->s,prefixlen,'[') < prefixlen) return 1;
if (byte_chr(work->s,prefixlen,']') < prefixlen) return 1;
}
work->len = prefixlen;
if (ch == '-') work->len = 0;
return stralloc_cats(work,rule + colon + 1);
}
int dns_domain_equal(const unsigned char *dn1, const unsigned char *dn2) {
long long len;
len = dns_domain_length(dn1);
if (len != dns_domain_length(dn2)) return 0;
return !case_diffb(dn1, len, dn2);
}
int address_diff(struct address *p,struct address *q)
{
int r;
r = byte_diff(p->location,2,q->location);
if (r < 0) return -1;
if (r > 0) return 1;
if (p->namelen < q->namelen) return -1;
if (p->namelen > q->namelen) return 1;
return case_diffb(p->name,p->namelen,q->name);
}
int getto(const stralloc *sa)
/* find list address in line. If found, return 1, else return 0. */
{
unsigned int pos = 0;
unsigned int pos1;
if (!sa->len) return 0; /* no To: or Cc: line */
while ((pos += 1 + byte_chr(sa->s+pos+1,sa->len-pos-1,'@')) != sa->len) {
pos1 = findhost(sa,pos);
if (pos1 == pos) break;
if (pos1 + outhost.len <= sa->len)
if (!case_diffb(sa->s+pos1,outhost.len,outhost.s)) { /* got host */
pos1 = findlocal(sa,pos);
if (pos1 == pos) break;
++pos1; /* avoids 1 x 2 below */
if (pos1 >= outlocal.len)
if (!case_diffb(sa->s+pos1-outlocal.len,outlocal.len,outlocal.s))
return 1; /* got local as well */
}
}
return 0;
}
int std_subscribe(const char *dir,
const char *subdir,
const char *userhost,
int flagadd,
const char *comment,
const char *event,
int forcehash)
/* add (flagadd=1) or remove (flagadd=0) userhost from the subscr. database */
/* dbname. Comment is e.g. the subscriber from line or name. It is added to */
/* the log. Event is the action type, e.g. "probe", "manual", etc. The */
/* direction (sub/unsub) is inferred from flagadd. Returns 1 on success, 0 */
/* on failure. If flagmysql is set and the file "sql" is found in the */
/* directory dbname, it is parsed and a mysql db is assumed. if forcehash is */
/* >=0 it is used in place of the calculated hash. This makes it possible to */
/* add addresses with a hash that does not exist. forcehash has to be 0..99. */
/* for unsubscribes, the address is only removed if forcehash matches the */
/* actual hash. This way, ezmlm-manage can be prevented from touching certain*/
/* addresses that can only be removed by ezmlm-unsub. Usually, this would be */
/* used for sublist addresses (to avoid removal) and sublist aliases (to */
/* prevent users from subscribing them (although the cookie mechanism would */
/* prevent the resulting duplicate message from being distributed. */
{
int fdlock;
unsigned int j;
unsigned char ch,lcch;
int match;
int flagwasthere;
if (userhost[str_chr(userhost,'\n')])
strerr_die2x(100,FATAL,ERR_ADDR_NL);
if (!stralloc_copys(&addr,"T")) die_nomem();
if (!stralloc_cats(&addr,userhost)) die_nomem();
if (addr.len > 401)
strerr_die2x(100,FATAL,ERR_ADDR_LONG);
j = byte_rchr(addr.s,addr.len,'@');
if (j == addr.len)
strerr_die2x(100,FATAL,ERR_ADDR_AT);
case_lowerb(addr.s + j + 1,addr.len - j - 1);
if (!stralloc_copy(&lcaddr,&addr)) die_nomem();
case_lowerb(lcaddr.s + 1,j - 1); /* make all-lc version of address */
if (forcehash >= 0 && forcehash <= 52) {
ch = lcch = 64 + (unsigned char) forcehash;
} else {
ch = 64 + subhashsa(&addr);
lcch = 64 + subhashsa(&lcaddr);
}
if (!stralloc_0(&addr)) die_nomem();
if (!stralloc_0(&lcaddr)) die_nomem();
std_makepath(&fn,dir,subdir,"/subscribers/",lcch);
std_makepath(&fnlock,dir,subdir,"/lock",0);
if (!stralloc_copyb(&fnnew,fn.s,fn.len-1)) die_nomem();
/* code later depends on fnnew = fn + 'n' */
if (!stralloc_cats(&fnnew,"n")) die_nomem();
if (!stralloc_0(&fnnew)) die_nomem();
fdlock = lockfile(fnlock.s);
/* do lower case hashed version first */
fdnew = open_trunc(fnnew.s);
if (fdnew == -1) die_write();
substdio_fdbuf(&ssnew,write,fdnew,ssnewbuf,sizeof(ssnewbuf));
flagwasthere = 0;
fd = open_read(fn.s);
if (fd == -1) {
if (errno != error_noent) { close(fdnew); die_read(); }
}
else {
substdio_fdbuf(&ss,read,fd,ssbuf,sizeof(ssbuf));
for (;;) {
if (getln(&ss,&line,&match,'\0') == -1) {
close(fd); close(fdnew); die_read();
}
if (!match) break;
if (line.len == addr.len)
if (!case_diffb(line.s,line.len,addr.s)) {
flagwasthere = 1;
if (!flagadd)
continue;
}
if (substdio_bput(&ssnew,line.s,line.len) == -1) {
close(fd); close(fdnew); die_write();
}
}
close(fd);
}
if (flagadd && !flagwasthere)
if (substdio_bput(&ssnew,addr.s,addr.len) == -1) {
close(fdnew); die_write();
}
if (substdio_flush(&ssnew) == -1) { close(fdnew); die_write(); }
if (fsync(fdnew) == -1) { close(fdnew); die_write(); }
close(fdnew);
if (rename(fnnew.s,fn.s) == -1)
strerr_die6sys(111,FATAL,ERR_MOVE,fnnew.s," to ",fn.s,": ");
if ((ch == lcch) || flagwasthere) {
close(fdlock);
if (flagadd ^ flagwasthere) {
if (!stralloc_0(&addr)) die_nomem();
logaddr(dir,subdir,event,addr.s+1,comment);
return 1;
}
return 0;
}
/* If unsub and not found and hashed differ, OR */
/* sub and not found (so added with new hash) */
/* do the 'case-dependent' hash */
fn.s[fn.len - 2] = ch;
fnnew.s[fnnew.len - 3] = ch;
fdnew = open_trunc(fnnew.s);
if (fdnew == -1) die_write();
substdio_fdbuf(&ssnew,write,fdnew,ssnewbuf,sizeof(ssnewbuf));
fd = open_read(fn.s);
if (fd == -1) {
if (errno != error_noent) { close(fdnew); die_read(); }
} else {
substdio_fdbuf(&ss,read,fd,ssbuf,sizeof(ssbuf));
for (;;) {
if (getln(&ss,&line,&match,'\0') == -1)
{ close(fd); close(fdnew); die_read(); }
if (!match) break;
if (line.len == addr.len)
if (!case_diffb(line.s,line.len,addr.s)) {
flagwasthere = 1;
continue; /* always want to remove from case-sensitive hash */
}
if (substdio_bput(&ssnew,line.s,line.len) == -1)
{ close(fd); close(fdnew); die_write(); }
}
close(fd);
}
if (substdio_flush(&ssnew) == -1) { close(fdnew); die_write(); }
if (fsync(fdnew) == -1) { close(fdnew); die_write(); }
close(fdnew);
if (rename(fnnew.s,fn.s) == -1)
strerr_die6sys(111,FATAL,ERR_MOVE,fnnew.s," to ",fn.s,": ");
close(fdlock);
if (flagadd ^ flagwasthere) {
if (!stralloc_0(&addr)) die_nomem();
logaddr(dir,subdir,event,addr.s+1,comment);
return 1;
}
return 0;
}
int main(int argc,char **argv)
{
int child;
const char *sendargs[4];
stralloc addr = {0};
unsigned int pos = 0,pos2,poslocal,len;
const char *cp;
unsigned long hh = 4L; /* default time 04:12 */
unsigned long mm = 12L;
const char *dow = "*"; /* day of week */
const char *qmail_inject = "/bin/qmail-inject ";
char strnum[FMT_ULONG];
unsigned long uid,euid = 0;
stralloc rp = {0};
stralloc user = {0};
stralloc euser = {0};
stralloc dir = {0};
stralloc listaddr = {0};
stralloc line = {0};
struct passwd *ppasswd;
int match;
int hostmatch;
int localmatch;
unsigned long dh,t;
int founduser = 0;
int listmatch = 0;
int flagdigit = 0;
int flagours;
int foundlocal = 0;
int foundmatch = 0;
unsigned int nolists = 0;
unsigned long maxlists;
unsigned int lenhost,lenlocal;
int fdin,fdout = -1;
char *local = (char *) 0; /* list = local@host */
const char *host = (char *) 0;
char *code = (char *) 0; /* digest code */
char inbuf[512];
substdio ssin;
char outbuf[512];
substdio ssout;
(void) umask(077);
sig_pipeignore();
optind = getconfopt(argc,argv,options,0,0);
if (flagt != 0) {
pos = scan_ulong(flagt,&hh);
if (flagt[pos++] != ':') die_usage();
(void) scan_ulong(flagt + pos,&mm);
}
if (flagw != 0) {
dow = flagw;
cp = flagw - 1;
while (*(++cp)) {
if (*cp >= '0' && *cp <= '7') {
if (flagdigit) die_dow();
flagdigit = 1;
} else if (*cp == ',') {
if (!flagdigit) die_dow();
flagdigit = 0;
} else
die_dow();
}
}
if (flaglist + flagdelete + flagconfig > 1)
strerr_die2x(100,FATAL,MSG(ERR_EXCLUSIVE));
uid = getuid();
if (uid && !(euid = geteuid()))
strerr_die2x(100,FATAL,MSG(ERR_SUID));
if (!(ppasswd = getpwuid(uid)))
strerr_die2x(100,FATAL,MSG(ERR_UID));
if (!stralloc_copys(&user,ppasswd->pw_name)) die_nomem();
if (!stralloc_0(&user)) die_nomem();
if (!(ppasswd = getpwuid(euid)))
strerr_die2x(100,FATAL,MSG(ERR_EUID));
if (!stralloc_copys(&dir,ppasswd->pw_dir)) die_nomem();
if (!stralloc_0(&dir)) die_nomem();
if (!stralloc_copys(&euser,ppasswd->pw_name)) die_nomem();
if (!stralloc_0(&euser)) die_nomem();
wrap_chdir(dir.s);
local = argv[optind++]; /* list address, optional for -c & -l */
if (!local) {
if (!flagconfig && !flaglist)
die_usage();
lenlocal = 0;
lenhost = 0;
} else {
if (!stralloc_copys(&listaddr,local)) die_nomem();
if (!isclean(local,1))
die_argument();
pos = str_chr(local,'@');
lenlocal = pos;
local[pos] = '\0';
host = local + pos + 1;
lenhost = str_len(host);
code = argv[optind];
if (!code) { /* ignored for -l, -c, and -d */
if (flagdelete || flaglist || flagconfig)
/* get away with not putting code for delete */
code = (char*)"a"; /* a hack - so what! */
else
die_usage();
} else
if (!isclean(code,0))
die_argument();
}
if ((fdin = open_read(TXT_EZCRONRC)) == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_OPEN,TXT_EZCRONRC));
/* first line is special */
substdio_fdbuf(&ssin,read,fdin,inbuf,sizeof(inbuf));
if (getln(&ssin,&line,&match,'\n') == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_READ,TXT_EZCRONRC));
if (!match)
strerr_die2sys(111,FATAL,MSG1(ERR_READ,TXT_EZCRONRC));
/* (since we have match line.len has to be >= 1) */
line.s[line.len - 1] = '\0';
if (!isclean(line.s,0)) /* host for bounces */
strerr_die2x(100,FATAL,MSG1(ERR_CFHOST,TXT_EZCRONRC));
if (!stralloc_copys(&rp,line.s)) die_nomem();
match = 1;
for(;;) {
if (!match) break; /* to allow last line without '\n' */
if (getln(&ssin,&line,&match,'\n') == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_READ,TXT_EZCRONRC));
if (!line.len)
break;
line.s[line.len-1] = '\0';
if (!case_startb(line.s,line.len,user.s))
continue;
pos = user.len - 1;
if (pos >= line.len || line.s[pos] != ':')
continue;
founduser = 1; /* got user line */
break;
}
close(fdin);
if (!founduser)
strerr_die2x(100,FATAL,MSG(ERR_BADUSER));
if (flagconfig) {
line.s[line.len-1] = '\n'; /* not very elegant ;-) */
substdio_fdbuf(&ssout,write,1,outbuf,sizeof(outbuf));
if (substdio_put(&ssout,line.s,line.len) == -1)
strerr_die2sys(111,FATAL,MSG(ERR_WRITE_STDOUT));
if (substdio_flush(&ssout) == -1)
strerr_die2sys(111,FATAL,MSG(ERR_WRITE_STDOUT));
_exit(0);
}
++pos; /* points to first ':' */
len = str_chr(line.s+pos,':'); /* second ':' */
if (!line.s[pos + len])
die_syntax(&line);
if (!local) { /* only -d and std left */
localmatch = 1;
hostmatch = 1;
} else {
hostmatch = 0;
if (len <= str_len(local))
if (!str_diffn(line.s+pos,local,len))
localmatch = 1;
}
pos += len + 1;
len = str_chr(line.s + pos,':'); /* third */
if (!line.s[pos + len])
die_syntax(&line);
if (local) { /* check host */
if (len == 0) /* empty host => any host */
hostmatch = 1;
else
if (len == str_len(host))
if (!case_diffb(line.s+pos,len,host))
hostmatch = 1;
}
pos += len + 1;
pos += scan_ulong(line.s+pos,&maxlists);
if (line.s[pos]) { /* check additional lists */
if (line.s[pos] != ':')
die_syntax(&line);
if (line.s[pos+1+str_chr(line.s+pos+1,':')])
die_syntax(&line); /* reminder lists are not separated by ':' */
/* otherwise a ':' or arg miscount will die */
/* silently */
if (local) {
while (++pos < line.len) {
len = str_chr(line.s + pos,'@');
if (len == lenlocal && !str_diffn(line.s + pos,local,len)) {
pos += len;
if (!line.s[pos]) break;
pos++;
len = str_chr(line.s+pos,',');
if (len == lenhost && !case_diffb(line.s+pos,len,host)) {
listmatch = 1;
break;
}
}
pos += len;
}
}
}
if (!listmatch) {
if (!hostmatch)
strerr_die2x(100,FATAL,MSG(ERR_BADHOST));
if (!localmatch)
strerr_die2x(100,FATAL,MSG(ERR_BADLOCAL));
}
/* assemble correct line */
if (!flaglist) {
if (!stralloc_copyb(&addr,strnum,fmt_ulong(strnum,mm))) die_nomem();
if (!stralloc_cats(&addr," ")) die_nomem();
dh = 0L;
if (deltah <= 3L) dh = deltah;
else if (deltah <= 6L) dh = 6L;
else if (deltah <= 12L) dh = 12L;
else if (deltah <= 24L) dh = 24L;
else if (deltah <= 48L) {
if (dow[0] == '*') dow = "1,3,5";
} else if (deltah <= 72L) {
if (dow[0] == '*') dow = "1,4";
} else
if (dow[0] == '*') dow = "1";
if (!dh) {
if (!stralloc_cats(&addr,"*")) die_nomem();
} else {
if (!stralloc_catb(&addr,strnum,fmt_ulong(strnum,hh))) die_nomem();
for (t = hh + dh; t < hh + 24L; t+=dh) {
if (!stralloc_cats(&addr,",")) die_nomem();
if (!stralloc_catb(&addr,strnum,fmt_ulong(strnum,t % 24L))) die_nomem();
}
}
if (!stralloc_cats(&addr," * * ")) die_nomem();
if (!stralloc_cats(&addr,dow)) die_nomem();
if (!stralloc_cats(&addr," ")) die_nomem();
if (!stralloc_cats(&addr,auto_qmail)) die_nomem();
if (!stralloc_cats(&addr,qmail_inject)) die_nomem();
if (!stralloc_cats(&addr,local)) die_nomem();
if (!stralloc_cats(&addr,"-dig-")) die_nomem();
if (!stralloc_cats(&addr,code)) die_nomem();
if (!stralloc_cats(&addr,"@")) die_nomem();
if (!stralloc_cats(&addr,host)) die_nomem();
/* feed 'Return-Path: <user@host>' to qmail-inject */
if (!stralloc_cats(&addr,"%Return-path: <")) die_nomem();
if (!stralloc_cats(&addr,user.s)) die_nomem();
if (!stralloc_cats(&addr,"@")) die_nomem();
if (!stralloc_cat(&addr,&rp)) die_nomem();
if (!stralloc_cats(&addr,">\n")) die_nomem();
}
if (!stralloc_0(&addr)) die_nomem();
if (!flaglist) {
/* now to rewrite crontab we need to lock */
lockfile("crontabl");
} /* if !flaglist */
if ((fdin = open_read("crontab")) == -1) {
if (errno != error_noent)
strerr_die2sys(111,FATAL,MSG1(ERR_READ,"crontab"));
} else
substdio_fdbuf(&ssin,read,fdin,inbuf,sizeof(inbuf));
if (flaglist)
substdio_fdbuf(&ssout,write,1,outbuf,sizeof(outbuf));
else {
if ((fdout = open_trunc("crontabn")) == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_WRITE,"crontabn"));
substdio_fdbuf(&ssout,write,fdout,outbuf,sizeof(outbuf));
}
line.len = 0;
if (fdin != -1) {
for (;;) {
if (!flaglist && line.len) {
line.s[line.len-1] = '\n';
if (substdio_put(&ssout,line.s,line.len) == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_WRITE,"crontabn"));
}
if (getln(&ssin,&line,&match,'\n') == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_READ,"crontab"));
if (!match)
break;
flagours = 0; /* assume entry is not ours */
foundlocal = 0;
line.s[line.len - 1] = '\0'; /* match so at least 1 char */
pos = 0;
while (line.s[pos] == ' ' || line.s[pos] == '\t') ++pos;
if (line.s[pos] == '#')
continue; /* cron comment */
pos = str_chr(line.s,'/');
if (!str_start(line.s+pos,auto_qmail)) continue;
pos += str_len(auto_qmail);
if (!str_start(line.s+pos,qmail_inject)) continue;
pos += str_len(qmail_inject);
poslocal = pos;
pos = byte_rchr(line.s,line.len,'<'); /* should be Return-Path: < */
if (pos == line.len)
continue; /* not ezmlm-cron line */
pos++;
len = str_chr(line.s+pos,'@');
if (len == user.len - 1 && !str_diffn(line.s+pos,user.s,len)) {
flagours = 1;
++nolists; /* belongs to this user */
}
if (!local) {
foundlocal = 1;
} else {
pos = poslocal + str_chr(line.s+poslocal,'@');
if (pos + lenhost +1 >= line.len) continue;
if (case_diffb(line.s+pos+1,lenhost,host)) continue;
if (line.s[pos+lenhost+1] != '%') continue;
/* check local */
if (poslocal + lenlocal + 5 >= line.len) continue;
if (!str_start(line.s+poslocal,local)) continue;
pos2 = poslocal+lenlocal;
if (!str_start(line.s+pos2,"-dig-")) continue;
foundlocal = 1;
}
if (foundlocal) {
foundmatch = 1;
if (flaglist && (local || flagours)) {
if (substdio_put(&ssout,line.s,line.len) == -1)
strerr_die2sys(111,FATAL,MSG(ERR_WRITE_STDOUT));
if (substdio_put(&ssout,"\n",1) == -1)
strerr_die2sys(111,FATAL,MSG(ERR_WRITE_STDOUT));
}
line.len = 0; /* same - kill line */
if (flagours)
--nolists;
}
}
close(fdin);
}
if (flaglist) {
if (substdio_flush(&ssout) == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_FLUSH,"stdout"));
if (foundmatch) /* means we had a match */
_exit(0);
else
strerr_die2x(100,FATAL,MSG(ERR_NO_MATCH));
}
/* only -d and regular use left */
if (nolists >= maxlists && !flagdelete)
strerr_die2x(100,FATAL,MSG(ERR_LISTNO));
if (!flagdelete)
if (substdio_put(&ssout,addr.s,addr.len-1) == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_WRITE,"crontabn"));
if (flagdelete && !foundlocal)
strerr_die2x(111,FATAL,MSG(ERR_NO_MATCH));
if (substdio_flush(&ssout) == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_FLUSH,"crontabn"));
if (fsync(fdout) == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_SYNC,"crontabn++"));
if (close(fdout) == -1)
strerr_die2sys(111,FATAL,MSG1(ERR_CLOSE,"crontabn"));
wrap_rename("crontabn","crontab");
sendargs[0] = "sh";
sendargs[1] = "-c";
if (!stralloc_copys(&line,auto_cron)) die_nomem();
if (!stralloc_cats(&line,"/crontab '")) die_nomem();
if (!stralloc_cats(&line,dir.s)) die_nomem();
if (!stralloc_cats(&line,"/crontab'")) die_nomem();
if (!stralloc_0(&line)) die_nomem();
sendargs[2] = line.s;
sendargs[3] = 0;
if ((child = wrap_fork()) == 0) {
if (setreuid(euid,euid) == -1)
strerr_die2sys(100,FATAL,MSG(ERR_SETUID));
wrap_execvp(sendargs);
}
/* parent */
switch (wrap_waitpid(child)) {
case 0:
_exit(0);
default:
strerr_die2x(111,FATAL,MSG(ERR_CRONTAB));
}
}
int case_startb (register char const *s, unsigned int slen, register char const *t)
{
register unsigned int tlen = str_len(t) ;
return slen < tlen ? 0 : !case_diffb(s, tlen, t) ;
}
int main(int argc,char **argv)
{
unsigned long maxmsgsize = 0L;
unsigned long minmsgsize = 0L;
unsigned long msgsize = 0L;
char linetype = ' ';
char *cp, *cpstart, *cpafter;
const char *dir;
const char *err;
const char *sender;
unsigned int len;
int match;
getconfopt(argc,argv,options,-1,&dir);
if (dir) {
startup(dir);
flagparsemime = 1; /* only if dir do we have mimeremove/reject */
if (getconf_line(&line,"msgsize",0)) {
if (!stralloc_0(&line)) die_nomem();
len = scan_ulong(line.s,&maxmsgsize);
if (line.s[len] == ':')
scan_ulong(line.s+len+1,&minmsgsize);
}
if (flagforward) {
if (!stralloc_copys(&mydtline,"Delivered-To: command forwarder for "))
die_nomem();
if (!stralloc_catb(&mydtline,outlocal.s,outlocal.len)) die_nomem();
if (!stralloc_cats(&mydtline,"@")) die_nomem();
if (!stralloc_catb(&mydtline,outhost.s,outhost.len)) die_nomem();
if (!stralloc_cats(&mydtline,"\n")) die_nomem();
}
} else {
flagtook = 1; /* if no "dir" we can't get outlocal/outhost */
flagforward = 0; /* nor forward requests */
}
sender = get_sender();
if (!sender)
die_sender();
if (!*sender)
strerr_die2x(100,FATAL,MSG(ERR_BOUNCE));
if (flagparsemime) { /* set up MIME parsing */
if (getconf(&mimeremove,"mimekeep",0))
mimeremoveflag = 1;
else
getconf(&mimeremove,"mimeremove",0);
constmap_init(&mimeremovemap,mimeremove.s,mimeremove.len,0);
getconf(&mimereject,"mimereject",0);
constmap_init(&mimerejectmap,mimereject.s,mimereject.len,0);
}
if (flagheaderreject && dir) {
getconf(&headerreject,"headerreject",0);
constmap_init(&headerrejectmap,headerreject.s,headerreject.len,0);
}
for (;;) {
if (getln(&ssin,&line,&match,'\n') == -1)
strerr_die2sys(111,FATAL,MSG(ERR_READ_INPUT));
if (!match) break;
if (flagheaderreject && dir)
if (constmap(&headerrejectmap,line.s,byte_chr(line.s,line.len,':')))
strerr_die2x(100,FATAL,MSG(ERR_MAILING_LIST));
if (line.len == 1) break;
cp = line.s; len = line.len;
if ((*cp == ' ' || *cp == '\t')) {
switch(linetype) {
case 'T': if (!stralloc_catb(&to,cp,len-1)) die_nomem(); break;
case 'S': if (!stralloc_catb(&subject,cp,len-1)) die_nomem(); break;
case 'C': if (!stralloc_catb(&content,cp,len-1)) die_nomem(); break;
case 'P': if (!stralloc_catb(&precd,cp,len-1)) die_nomem(); break;
default: break;
}
} else {
if (!flagtook &&
(case_startb(cp,len,"to:") || case_startb(cp,len,"cc:"))) {
linetype = 'T'; /* cat so that To/Cc don't overwrite */
if (!stralloc_catb(&to,line.s + 3,line.len - 4)) die_nomem();
} else if ((flagneedsubject || flagrejectcommands) &&
case_startb(cp,len,"subject:")) {
if (!stralloc_copyb(&subject,cp+8,len-9)) die_nomem();
linetype = 'S';
} else if (case_startb(cp,len,"content-type:")) {
if (!stralloc_copyb(&content,cp+13,len-14)) die_nomem();
linetype = 'C';
} else if (case_startb(cp,len,"precedence:")) {
if (!stralloc_copyb(&precd,cp+11,len-12)) die_nomem();
linetype = 'P';
} else {
if (flagforward && line.len == mydtline.len) {
if (!byte_diff(line.s,line.len,mydtline.s))
strerr_die2x(100,FATAL,MSG(ERR_LOOPING));
}
linetype = ' ';
}
}
}
if (precd.len >= 4 &&
(!case_diffb(precd.s + precd.len - 4,4,"junk") ||
!case_diffb(precd.s + precd.len - 4,4,"bulk")))
strerr_die1x(99,MSG(ERR_JUNK)); /* ignore precedence junk/bulk */
cp = subject.s;
len = subject.len;
while (len && (cp[len-1] == ' ' || cp[len-1] == '\t')) --len;
while (len && ((*cp == ' ') || (*cp == '\t'))) { ++cp; --len; }
flaghavesubject = 1;
if (flagbody)
if ((len > 9 && case_starts(cp,"subscribe"))
|| (len > 11 && case_starts(cp,"unsubscribe")))
flaghavecommand = 1;
switch(len) {
case 0: flaghavesubject = 0; break;
case 4: if (!case_diffb("help",4,cp)) flaghavecommand = 1; break;
case 6: /* Why can't they just leave an empty subject empty? */
if (!case_diffb("(null)",6,cp))
flaghavesubject = 0;
else
if (!case_diffb("(none)",6,cp))
flaghavesubject = 0;
else
if (!case_diffb("remove",6,cp))
flaghavecommand = 1;
break;
case 9: if (!case_diffb("subscribe",9,cp)) flaghavecommand = 1; break;
case 11: if (!case_diffb("unsubscribe",11,cp)) flaghavecommand = 1; break;
case 12: if (!case_diffb("(no subject)",12,cp)) flaghavesubject = 0; break;
default: break;
}
if (!flagtook && !getto(&to))
strerr_die2x(exitquiet,FATAL,MSG(ERR_NO_ADDRESS));
if (flagneedsubject && !flaghavesubject)
strerr_die2x(100,FATAL,MSG(ERR_NO_SUBJECT));
if (flagrejectcommands && flaghavecommand) {
if (flagforward) { /* flagforward => forward */
if (qmail_open(&qq) == -1) /* open queue */
strerr_die2sys(111,FATAL,MSG(ERR_QMAIL_QUEUE));
qmail_put(&qq,mydtline.s,mydtline.len);
if (seek_begin(0) == -1)
strerr_die2sys(111,FATAL,MSG(ERR_SEEK_INPUT));
if (qmail_copy(&qq,&ssin2,copylines) != 0)
strerr_die2sys(111,FATAL,MSG(ERR_READ_INPUT));
if (!stralloc_copy(&to,&outlocal)) die_nomem();
if (!stralloc_cats(&to,"-request@")) die_nomem();
if (!stralloc_cat(&to,&outhost)) die_nomem();
if (!stralloc_0(&to)) die_nomem();
qmail_from(&qq,sender);
qmail_to(&qq,to.s);
if (*(err = qmail_close(&qq)) == '\0') {
strnum[fmt_ulong(strnum,qmail_qp(&qq))] = 0;
strerr_die2x(99,"ezmlm-request: info: forward qp ",strnum);
} else
strerr_die4x(111,FATAL,MSG(ERR_TMP_QMAIL_QUEUE),": ",err + 1);
} else
strerr_die2x(100,FATAL,MSG(ERR_SUBCOMMAND));
}
if (content.len) { /* MIME header */
cp = content.s;
len = content.len;
while (len && (*cp == ' ' || *cp == '\t')) { ++cp; --len; }
cpstart = cp;
if (*cp == '"') { /* might be commented */
++cp; cpstart = cp;
while (len && *cp != '"') { ++cp; --len; }
} else {
while (len && *cp != ' ' && *cp != '\t' && *cp != ';') {
++cp; --len;
}
}
if (flagparsemime)
if ((!!constmap(&mimeremovemap,cpstart,cp-cpstart) ^ mimeremoveflag) ||
constmap(&mimerejectmap,cpstart,cp-cpstart)) {
*(cp) = (char) 0;
strerr_die2x(100,FATAL,MSG1(ERR_BAD_TYPE,cpstart));
}
cpafter = content.s+content.len;
while((cp += byte_chr(cp,cpafter-cp,';')) != cpafter) {
++cp;
while (cp < cpafter && (*cp == ' ' || *cp == '\t')) ++cp;
if (case_startb(cp,cpafter - cp,"boundary=")) {
cp += 9; /* after boundary= */
if (cp < cpafter && *cp == '"') {
++cp;
cpstart = cp;
while (cp < cpafter && *cp != '"') ++cp;
if (cp == cpafter)
strerr_die1x(100,MSG(ERR_MIME_QUOTE));
} else {
cpstart = cp;
while (cp < cpafter &&
*cp != ';' && *cp != ' ' && *cp != '\t') ++cp;
}
if (!stralloc_copys(&boundary,"--")) die_nomem();
if (!stralloc_catb(&boundary,cpstart,cp-cpstart))
die_nomem();
break;
}
} /* got boundary, now parse for parts */
}
for (;;) {
if (getln(&ssin,&line,&match,'\n') == -1)
strerr_die2sys(111,FATAL,MSG(ERR_READ_INPUT));
if (!match) break;
if (line.len == 1) {
flagcheck = 0;
continue;
/* Doesn't do continuation lines. _very_ unusual, and worst */
/* case one slips through that shouldn't have */
} else if (flagcheck && case_startb(line.s,line.len,"content-type:")) {
cp = line.s + 13;
len = line.len - 14; /* zap '\n' */
while (*cp == ' ' || *cp == '\t') { ++cp; --len; }
cpstart = cp;
if (*cp == '"') { /* quoted */
++cp; cpstart = cp;
while (len && *cp != '"') { ++cp; --len; }
} else { /* not quoted */
while (len && *cp != ' ' && *cp != '\t' && *cp != ';') {
++cp; --len;
}
}
if (flagparsemime && constmap(&mimerejectmap,cpstart,cp-cpstart)) {
*cp = '\0';
strerr_die2x(100,FATAL,MSG1(ERR_BAD_PART,cpstart));
}
} else if (boundary.len && *line.s == '-' && line.len > boundary.len &&
!str_diffn(line.s,boundary.s,boundary.len)) {
flagcheck = 1;
} else {
if (!msgsize && flagbody)
if (case_startb(line.s,line.len,"subscribe") ||
case_startb(line.s,line.len,"unsubscribe"))
strerr_die2x(100,FATAL,MSG(ERR_BODYCOMMAND));
if (!flagcheck) {
msgsize += line.len;
if (maxmsgsize && msgsize > maxmsgsize) {
strnum[fmt_ulong(strnum,maxmsgsize)] = 0;
strerr_die2x(100,FATAL,MSG1(ERR_MAX_SIZE,strnum));
}
}
}
}
if (msgsize < minmsgsize) {
strnum[fmt_ulong(strnum,minmsgsize)] = 0;
strerr_die2x(100,FATAL,MSG1(ERR_MIN_SIZE,strnum));
}
_exit(0);
}
