int main(int argc, char **argv)
{
struct moduledel *p;
int waitstat;
const char *cp;
clog_open_syslog("courierfax");
if (chdir(getenv("COURIER_HOME")))
clog_msg_errno();
cp=getenv("MAXDELS");
if (!cp || atoi(cp) != 1)
{
clog_msg_start_err();
clog_msg_str("FATAL: courierfax module misconfiguration, MAXDELS must be 1");
clog_msg_send();
exit(0);
}
cp=getenv("MAXRCPT");
if (!cp || atoi(cp) != 1)
{
clog_msg_start_err();
clog_msg_str("FATAL: courierfax module misconfiguration, MAXRCPT must be 1");
clog_msg_send();
exit(0);
}
module_init(0);
while ((p=module_getdel()) != NULL)
{
pid_t pid;
unsigned delid;
delid=atol(p->delid);
if ((pid=module_fork(delid, 0)) == -1)
{
clog_msg_prerrno();
module_completed(delid, delid);
continue;
}
if (pid == 0)
{
fax(p);
exit(0);
}
}
module_signal(SIGTERM);
signal(SIGCHLD, SIG_DFL);
signal(SIGALRM, killit);
alarm(5);
wait(&waitstat);
alarm(0);
return (0);
}
int main(int argc, char **argv)
{
struct moduledel *p;
clog_open_syslog("courierlocal");
if (chdir(courier_home=getenv("COURIER_HOME")))
clog_msg_errno();
if (atol(getenv("MAXRCPT")) > 1)
{
clog_msg_start_err();
clog_msg_str("Invalid configuration in config, set MAXRCPT=1");
clog_msg_send();
exit(1);
}
module_init(0);
module_delivery_timeout(config_readtime("localtimeout", 15*60));
while ((p=module_getdel()) != NULL)
{
unsigned delid=atol(p->delid);
unsigned rcptnum;
struct ctlfile ctf;
int pipe1[2], pipe2[2];
pid_t pid;
int datfd;
struct stat stat_buf;
pid=module_fork(delid, 0);
if (pid < 0)
{
clog_msg_prerrno();
module_completed(delid, delid);
continue;
}
if (pid) continue;
#if HAVE_SETPGRP
#if SETPGRP_VOID
setpgrp();
#else
setpgrp(0, 0);
#endif
#endif
if (p->nreceipients != 1)
{
clog_msg_start_err();
clog_msg_str("Invalid message from courierd.");
clog_msg_send();
_exit(0);
}
rcptnum=atol(p->receipients[0]);
if (ctlfile_openi(p->inum, &ctf, 0))
{
clog_msg_errno();
_exit(0);
}
if (pipe(pipe1) < 0 || pipe(pipe2) < 0
|| (pid=fork()) < 0)
{
clog_msg_prerrno();
ctlfile_append_reply(&ctf, rcptnum,
"Can't run courierdeliver.",
COMCTLFILE_DELDEFERRED, 0);
ctlfile_close(&ctf);
_exit(0);
return (0);
}
if ((datfd=open(qmsgsdatname(p->inum), O_RDONLY)) < 0)
{
clog_msg_prerrno();
ctlfile_append_reply(&ctf, rcptnum,
"Unable to read message file.",
COMCTLFILE_DELDEFERRED, 0);
ctlfile_close(&ctf);
_exit(0);
return (0);
}
if (pid == 0)
{
const char *host, *homedir, *maildir, *quota;
char *buf, *s;
char *username, *ext;
uid_t u;
gid_t g;
close(pipe1[0]);
close(pipe2[0]);
dup2(pipe2[1], 2);
close(pipe2[1]);
dup2(pipe1[1], 1);
close(pipe1[1]);
close(0);
if (dup(datfd) != 0)
{
clog_msg_start_err();
clog_msg_str("Unable to read message file.");
clog_msg_send();
_exit(EX_TEMPFAIL);
}
close(ctf.fd);
close(datfd);
/* Contents of host: */
/* acct!ext!uid!gid!homedir!maildir!quota */
host=p->host;
buf=strdup(host);
if (!buf)
{
clog_msg_prerrno();
_exit(EX_TEMPFAIL);
}
s=strchr(buf, '!');
username=buf;
if (s) *s++=0;
ext=s;
if (s) s=strchr(s, '!');
if (s) *s++=0;
u=0;
while (s && *s != '!')
{
if (isdigit((int)(unsigned char)*s))
u=u*10 + (*s - '0');
++s;
}
if (s) *s++=0;
g=0;
while (s && *s != '!')
{
if (isdigit((int)(unsigned char)*s))
g=g*10 + (*s - '0');
++s;
}
if (s) *s++=0;
homedir=s;
if (s) s=strchr(s, '!');
if (s) *s++=0;
maildir=s;
if (s) s=strchr(s, '!');
if (s) *s++=0;
quota=s;
if (!s)
{
clog_msg_start_err();
clog_msg_str("Invalid local recipient address.");
clog_msg_send();
_exit(EX_TEMPFAIL);
}
if (chdir(homedir))
{
clog_msg_str(homedir);
clog_msg_str(": ");
clog_msg_prerrno();
_exit(EX_TEMPFAIL);
}
libmail_changeuidgid(u, g);
execl( MODULEDIR "/local/courierdeliver",
"courierdeliver",
username,
homedir,
ext,
ctf.receipients[rcptnum],
verp_getsender(&ctf, ctf.receipients[rcptnum]),
quota,
maildir,
(const char *)0);
clog_msg_start_err();
clog_msg_prerrno();
clog_msg_send();
_exit(EX_TEMPFAIL);
}
close(pipe1[1]);
close(pipe2[1]);
libmail_changeuidgid(MAILUID, MAILGID);
if (fstat(datfd, &stat_buf) == 0)
ctf.msgsize=stat_buf.st_size;
close(datfd);
wait_delivery(pid, &ctf, rcptnum, pipe2[0], pipe1[0],
p->host, p->receipients[1]);
ctlfile_close(&ctf);
_exit(0);
}
return (0);
}
