static void fax(struct moduledel *p)
{
struct ctlfile ctf;
unsigned nreceipients=p->nreceipients;
const char *host=p->host;
const char *receipient;
unsigned nrecipient=(unsigned)atol(p->receipients[0]);
int pipefd[2];
pid_t child_proc;
int faxopts;
int n_cover_pages;
FILE *fp;
struct faxconv_err_args err_args;
struct sort_file_list *page_list, *pp;
#if HAVE_SETPGRP
#if SETPGRP_VOID
setpgrp();
#else
setpgrp(0, 0);
#endif
#else
#if HAVE_SETPGID
setpgid(0, 0);
#endif
#endif
if (comgetfaxopts(host, &faxopts))
{
clog_msg_start_err();
clog_msg_str("courierfax: FATAL: invalid host");
clog_msg_send();
exit(1);
}
putenv(faxopts & FAX_LOWRES ? "FAXRES=lo":"FAXRES=hi");
if (nreceipients != 1)
{
clog_msg_start_err();
clog_msg_str("courierfax: FATAL: # receipients must be 1");
clog_msg_send();
exit(1);
}
receipient=p->receipients[1];
nrecipient=(unsigned)atol(p->receipients[0]);
if (ctlfile_openi(p->inum, &ctf, 0))
clog_msg_errno();
/* Convert message to fax format, use a child process */
signal(SIGTERM, faxabort);
if (pipe(pipefd) < 0)
{
clog_msg_errno();
}
child_proc=fork();
if (child_proc < 0)
{
clog_msg_errno();
return;
}
if (child_proc == 0)
{
const char *fn;
close(0);
if (open("/dev/null", O_RDONLY) != 0)
clog_msg_errno();
close(pipefd[0]);
close(1);
if (dup(pipefd[1]) != 1)
{
perror("dup");
exit(1);
}
close(2);
if (dup(pipefd[1]) != 2)
{
fprintf(stderr, "ERROR: dup failed\n");
exit(1);
}
close(pipefd[1]);
libmail_changeuidgid(MAILUID, MAILGID);
fn=qmsgsdatname(p->inum);
if (faxconvert(fn, faxopts, &n_cover_pages))
exit (1);
if ((fp=fopen(FAXTMPDIR "/.ncoverpages", "w")) == NULL ||
fprintf(fp, "%d\n", n_cover_pages) < 0 ||
fflush(fp) < 0)
exit(1);
fclose(fp);
exit(0);
}
close(pipefd[1]);
err_args.ctf= &ctf;
err_args.nreceip=nrecipient;
if (read_childerrmsg(child_proc, pipefd[0],
&faxconvert_cleanup, &err_args))
{
ctlfile_close(&ctf);
return;
}
/* Hit it */
if ((fp=fopen(FAXTMPDIR "/.ncoverpages", "r")) == NULL ||
fscanf(fp, "%d", &n_cover_pages) != 1)
{
if (fp)
fclose(fp);
ctlfile_append_reply(err_args.ctf,
err_args.nreceip,
"Internal error: cannot read number of cover pages",
COMCTLFILE_DELFAIL, 0);
ctlfile_close(&ctf);
exit(0);
}
page_list=read_dir_sort_filenames(FAXTMPDIR, FAXTMPDIR "/");
if (!page_list)
{
clog_msg_start_err();
clog_msg_str("courierfax: INTERNAL ERROR - no pages to xmit.");
clog_msg_send();
exit(1);
}
/* Keep trying until the modem line is unlocked */
do
{
if (pipe(pipefd) < 0)
{
clog_msg_errno();
}
child_proc=fork();
if (child_proc < 0)
{
clog_msg_errno();
return;
}
if (child_proc == 0)
{
unsigned page_cnt=0;
char **argvec;
close(pipefd[0]);
close(0);
if (open("/dev/null", O_RDONLY) != 0)
{
perror("/dev/null");
exit(1);
}
close(1);
if (dup(pipefd[1]) != 1)
{
perror("dup");
exit(1);
}
close(2);
if (dup(pipefd[1]) != 2)
{
fprintf(stderr, "ERROR: dup failed\n");
exit(1);
}
close(pipefd[1]);
for (pp=page_list; pp; pp=pp->next)
++page_cnt;
#if 0
while (page_list)
{
unlink(page_list->filename);
page_list=page_list->next;
}
exit(0);
#endif
argvec=(char **)courier_malloc(sizeof(char *)*
(page_cnt+10));
argvec[0]=SENDFAX;
argvec[1]="-v";
argvec[2]="-r";
page_cnt=3;
if (faxopts & FAX_LOWRES)
argvec[page_cnt++]="-n";
argvec[page_cnt++]=(char *)receipient;
while (page_list)
{
argvec[page_cnt++]=page_list->filename;
page_list=page_list->next;
}
argvec[page_cnt]=0;
execv(SENDFAX, argvec);
perror(SENDFAX);
exit(1);
}
close(pipefd[1]);
err_args.ctf= &ctf;
err_args.nreceip=nrecipient;
err_args.file_list=page_list;
err_args.is_locked=0;
err_args.n_cover_pages=n_cover_pages;
if (read_childerrmsg(child_proc, pipefd[0],
&faxsend_cleanup, &err_args) == 0)
{
size_t npages=0;
char fmtbuf[NUMBUFSIZE];
char fmtbuf1[NUMBUFSIZE];
char fmtbuf2[NUMBUFSIZE+100];
for (pp=page_list; pp; pp=pp->next)
++npages;
libmail_str_size_t(npages, fmtbuf);
libmail_str_size_t(n_cover_pages, fmtbuf1);
sprintf(fmtbuf2,
"%s pages - including %s cover page(s)"
" - sent by fax.", fmtbuf, fmtbuf1);
ctlfile_append_reply(&ctf, (unsigned)
nrecipient,
fmtbuf2,
COMCTLFILE_DELSUCCESS, " l");
break;
}
} while (err_args.is_locked);
ctlfile_close(&ctf);
rmdir_contents(FAXTMPDIR);
}
int msgcancel(const char *qid, const char **reason, int nreason,
int chkuid)
{
ino_t n;
struct ctlfile ctf;
struct stat stat_buf;
uid_t u=getuid();
int c, d;
struct iovec *iova;
static const char default_cancel_msg[]="Message cancelled.";
static const char *default_cancel_msgp[1]= { default_cancel_msg };
static const char x=COMCTLFILE_CANCEL_MSG;
char *s;
if (comparseqid(qid, &n)) return (-1);
if (ctlfile_openi(n, &ctf, 0)) return (-1);
if (fstat(ctf.fd, &stat_buf) || (chkuid && u && u != stat_buf.st_uid) ||
ctf.cancelled)
{
ctlfile_close(&ctf);
return (-1);
}
c=ctlfile_searchfirst(&ctf, COMCTLFILE_MSGID);
if (c < 0 || strcmp(ctf.lines[c]+1, qid))
{
ctlfile_close(&ctf);
return (-1);
}
if ((iova=(struct iovec *)malloc(sizeof(struct iovec) * 3 *
(nreason == 0 ? 1:nreason))) == 0)
{
perror("enomem");
exit(1);
}
if (nreason == 0)
{
reason=default_cancel_msgp;
nreason=1;
}
c=0;
while (nreason)
{
iova[c].iov_base=(caddr_t)&x;
iova[c].iov_len=1;
c++;
iova[c].iov_base=(caddr_t) *reason;
iova[c].iov_len=strlen( *reason );
c++;
iova[c].iov_base=(caddr_t)"\n";
iova[c].iov_len=1;
c++;
++reason;
--nreason;
}
s=malloc(sizeof(TRIGGER_FLUSHMSG)+strlen(qid)+3);
if (!s)
{
perror("malloc");
exit(1);
}
strcat(strcat(strcpy(s, TRIGGER_FLUSHMSG " "), qid), "\n");
d=writev(ctf.fd, iova, c);
ctlfile_close(&ctf);
while (c)
{
--c;
if (iova[c].iov_len > d)
{
perror("writev");
free(iova);
free(s);
return (0);
}
d -= iova[c].iov_len;
}
free(iova);
trigger(s);
free(s);
return (0);
}
int main(int argc, char **argv)
{
if (argc > 1 && strcmp(argv[1], "--version") == 0)
{
printf("%s\n", COURIER_COPYRIGHT);
exit(0);
}
if (chdir(courierdir()))
{
perror("chdir");
return (1);
}
if (argc < 2) return (0);
if (strcmp(argv[1], "stop") == 0)
{
int fd;
trigger(TRIGGER_STOP);
/* Wait until the exclusive lock goes away: */
signal(SIGHUP, SIG_DFL);
if ((fd=open(TMPDIR "/courierd.lock", O_RDWR|O_CREAT, 0600))
< 0) clog_msg_errno();
alarm(15); /* But abort after 15 seconds. */
ll_lock_ex(fd);
return (0);
}
if (strcmp(argv[1], "restart") == 0)
{
trigger(TRIGGER_RESTART);
return (0);
}
if (strcmp(argv[1], "flush") == 0)
{
ino_t n;
struct ctlfile ctf;
if (getuid())
{
/*
** We'll fail trying to open the pipe anyway, but let's
** give a meaningful error message now.
*/
fprintf(stderr,
"courier flush can be executed only by the superuser.\n");
exit(1);
}
if (argc < 3)
{
trigger(TRIGGER_FLUSH); /* Everything */
exit(0);
}
if (comparseqid(argv[2], &n) == 0 &&
ctlfile_openi(n, &ctf, 1) == 0)
{
int c=ctlfile_searchfirst(&ctf, COMCTLFILE_MSGID);
if (c >= 0 && strcmp(ctf.lines[c]+1, argv[2]) == 0)
{
char *s=courier_malloc(sizeof(TRIGGER_FLUSHMSG)+1+
strlen(argv[2]));
strcat(strcat(strcpy(s, TRIGGER_FLUSHMSG),
argv[2]), "\n");
trigger(s);
ctlfile_close(&ctf);
return (0);
}
ctlfile_close(&ctf);
}
fprintf(stderr, "No such message.\n");
exit(1);
return (1);
}
/* Might as well... */
if (strcmp(argv[1], "start") == 0)
{
pid_t p;
int waitstat;
char dummy;
/*
** Ok, courierd will close file descriptor 3 when it starts, so we
** put a pipe on there, and wait for it to close.
*/
int pipefd[2];
close(3);
if (open("/dev/null", O_RDONLY) != 3 || pipe(pipefd))
{
fprintf(stderr, "Cannot open pipe\n");
exit(1);
}
if (getuid())
{
/*
** We'll fail trying to execute courierd anyway, but let's
** give a meaningful error message now.
*/
fprintf(stderr, "courier start can be executed only by the superuser.\n");
return (1);
}
signal(SIGCHLD, SIG_DFL);
while ((p=fork()) == -1)
{
perror("fork");
sleep(10);
}
if (p == 0)
{
dup2(pipefd[1], 3);
close(pipefd[1]);
close(pipefd[0]);
while ((p=fork()) == -1)
{
perror("fork");
sleep(10);
}
if (p == 0)
{
/*
** stdin from the bitbucket. stdout to
** /dev/null, or the bitbucket.
*/
signal(SIGHUP, SIG_IGN);
close(0);
open("/dev/null", O_RDWR);
dup2(0, 1);
dup2(0, 2);
/* See if we can disconnect from the terminal */
#ifdef TIOCNOTTY
{
int fd=open("/dev/tty", O_RDWR);
if (fd >= 0)
{
ioctl(fd, TIOCNOTTY, 0);
close(fd);
}
}
#endif
/* Remove any process groups */
#if HAVE_SETPGRP
#if SETPGRP_VOID
setpgrp();
#else
setpgrp(0, 0);
#endif
#endif
execl( DATADIR "/courierctl.start",
"courierctl.start", (char *)0);
perror("exec");
_exit(1);
}
_exit(0);
}
close(pipefd[1]);
while (wait(&waitstat) != p)
;
if (read(pipefd[0], &dummy, 1) < 0)
; /* ignore */
close(pipefd[0]);
close(3);
return (0);
}
if (strcmp(argv[1], "clear") == 0 && argc > 2)
{
libmail_changeuidgid(MAILUID, MAILGID);
if (strcmp(argv[2], "all") == 0)
{
courier_clear_all();
}
else
{
track_save(argv[2], TRACK_ADDRACCEPTED);
printf("%s cleared.\n", argv[2]);
}
return (0);
}
if (argc > 2 && strcmp(argv[1], "show") == 0 &&
strcmp(argv[2], "all") == 0)
{
libmail_changeuidgid(MAILUID, MAILGID);
courier_show_all();
}
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);
}
int msgq::queuescan3(std::string subdir, std::string name,
const char *isnewmsg)
{
struct ctlfile ctlinfo;
ino_t inum;
time_t deltime, delsendtime;
const char *p=name.c_str();
struct stat stat_buf;
++p;
inum=strtoino(p);
while (isdigit(*p)) p++;
++p;
deltime=strtotime(p);
name= subdir + '/' + name;
if (ctlfile_openfn(name.c_str(), &ctlinfo, 0, 1))
{
if (errno)
{
clog_msg_start_err();
clog_msg_str("Cannot read ");
clog_msg_str(name.c_str());
clog_msg_send();
clog_msg_prerrno();
}
return (0);
}
delsendtime=deltime;
if (flushtime && ctlinfo.mtime < flushtime && flushtime < deltime)
delsendtime=flushtime;
if (!queuefree)
{
msgq *p;
//
// msgq array is full. See if we can remove the last message from the
// pending queue.
p=queuetail;
if (p && p->nextsenddel > delsendtime)
{
#if 0
clog_msg_start_info();
clog_msg_str("Removing ");
clog_msg_uint(p->msgnum);
clog_msg_str(" to make room for this message.");
clog_msg_send();
#endif
p->removewq();
p->removeq();
}
}
msgq *newq=queuefree;
if (!newq)
{
ctlfile_close(&ctlinfo);
if (queuefill && nextqueuefill == 0)
{
nextqueuefill=current_time + queuefill;
}
return (1);
}
const char *cn=qmsgsctlname(inum);
if ( stat(cn, &stat_buf) == -1 )
{
unlink(name.c_str());
unlink(qmsgsdatname(inum));
unlink(cn);
ctlfile_close(&ctlinfo);
return (0);
}
#if 0
clog_msg_start_info();
clog_msg_str("Adding ");
clog_msg_uint(inum);
clog_msg_str(" to queue.");
clog_msg_send();
#endif
queuefree=newq->next;
++queuedelivering;
ino_t hashbucket=inum % queuehashfirst.size();
if (queuehashfirst[hashbucket])
queuehashfirst[hashbucket]->prevhash=newq;
else
queuehashlast[hashbucket]=newq;
newq->nexthash=queuehashfirst[hashbucket];
newq->prevhash=0;
queuehashfirst[hashbucket]=newq;
newq->nksize= (unsigned long)stat_buf.st_size;
ctlinfo.starttime=stat_buf.st_mtime;
int k=ctlfile_searchfirst(&ctlinfo, COMCTLFILE_MSGID);
newq->msgid= k < 0 ? "": ctlinfo.lines[k]+1;
newq->msgnum=inum;
newq->nextdel=deltime;
newq->nextsenddel=delsendtime;
newq->rcptinfo_list.resize(0);
newq->rcptcount=0;
newq->cancelled=ctlinfo.cancelled;
if (isnewmsg)
{
int auth;
clog_msg_start_info();
clog_msg_str("newmsg,id=");
logmsgid(newq);
auth=ctlfile_searchfirst(&ctlinfo, COMCTLFILE_AUTHNAME);
if (auth >= 0)
{
clog_msg_str(", auth=");
clog_msg_str(ctlinfo.lines[auth]+1);
}
int m=ctlfile_searchfirst(&ctlinfo, COMCTLFILE_FROMMTA);
if (m >= 0)
{
clog_msg_str(": ");
clog_msg_str(ctlinfo.lines[m]+1);
}
clog_msg_send();
}
unsigned i, j;
std::string host, addr;
k=ctlfile_searchfirst(&ctlinfo, COMCTLFILE_SENDER);
struct rfc822t *sendert=rw_rewrite_tokenize(k < 0 ? "":ctlinfo.lines[k]+1);
std::string errmsg;
for (i=0; i<ctlinfo.nreceipients; i++)
{
for (j=0; ctlinfo.lines[j]; j++)
{
switch (ctlinfo.lines[j][0]) {
case COMCTLFILE_DELSUCCESS:
case COMCTLFILE_DELFAIL:
if ((unsigned)atoi(ctlinfo.lines[j]+1) == i)
break;
// This one has been delivered
default:
continue;
}
break;
}
if (ctlinfo.lines[j]) continue;
drvinfo *module=getdelinfo(sendert->tokens,
ctlinfo.receipients[i], host, addr, errmsg);
if (!module)
{
ctlfile_append_reply(&ctlinfo, i, errmsg.c_str(),
SMTPREPLY_TYPE(errmsg.c_str()),
0);
continue;
}
/* Check if it's time to move the message to a backup relay */
if (backup_relay_driver &&
ctlfile_searchfirst(&ctlinfo, COMCTLFILE_WARNINGSENT)
>= 0 &&
strcmp(module->module->name,
backup_relay_driver->module->name) == 0)
{
// module=backup_relay_driver;
host=backup_relay;
}
/* Group all recipients for the same driver and host together */
for (j=0; j<newq->rcptcount; j++)
if (strcmp(module->module->name,
newq->rcptinfo_list[j].delmodule->
module->name) == 0 &&
newq->rcptinfo_list[j].delhost == host &&
newq->rcptinfo_list[j].addresses.size()
< module->maxrcpt )
break;
if (j == newq->rcptcount)
{
#if 0
clog_msg_start_info();
clog_msg_str("id=");
logmsgid(newq);
clog_msg_str(",new rcpt list - module=");
clog_msg_str(module->module->name);
clog_msg_str(", host=");
clog_msg_str(host);
clog_msg_send();
#endif
newq->rcptinfo_list.resize(++newq->rcptcount);
struct rw_info_rewrite rwir;
struct rw_info rwi;
rwir.buf=0;
rwir.errmsg=0;
rw_info_init(&rwi, sendert->tokens, rw_err_func);
rwi.sender=0;
rwi.mode=RW_OUTPUT|RW_ENVSENDER;
rwi.udata= (void *)&rwir;
rw_rewrite_module(module->module, &rwi,
rw_rewrite_chksyn_print);
char *address=((struct rw_info_rewrite *)rwi.udata)->buf;
char *errmsg= ((struct rw_info_rewrite *)rwi.udata)->errmsg;
if (!address)
{
ctlfile_append_reply(&ctlinfo, i, errmsg,
SMTPREPLY_TYPE(errmsg), 0);
newq->rcptinfo_list.resize(--newq->rcptcount);
free(errmsg);
continue;
}
if (errmsg) free(errmsg);
newq->rcptinfo_list[j].init(newq, module, host, address);
free(address);
}
#if 0
clog_msg_start_info();
clog_msg_str("id=");
logmsgid(newq);
clog_msg_str(",module=");
clog_msg_str(module->module->name);
clog_msg_str(", host=");
clog_msg_str(host);
clog_msg_str(", addr=<");
clog_msg_str(addr);
clog_msg_str(">");
clog_msg_send();
#endif
newq->rcptinfo_list[j].addresses.push_back(addr);
newq->rcptinfo_list[j].addressesidx.push_back(i);
}
rfc822t_free(sendert);
ctlfile_close(&ctlinfo);
if (newq->nextsenddel <= current_time ||
/*
** If there are no more recipients, we want to call done() via
** start_message. HOWEVER, if DSN injection FAILED, we want to respect
** the rescheduled delivery attempt time. We can detect that if isnewmsg == 0
*/
(newq->rcptinfo_list.size() == 0 && isnewmsg))
{
newq->start_message();
return (0);
}
msgq *qp, *qprev;
for (qprev=queuetail, qp=0; qprev; qp=qprev, qprev=qp->prev)
if (qprev->nextsenddel < newq->nextsenddel)
break;
newq->next=qp;
newq->prev=qprev;
if (qprev) qprev->next=newq;
else queuehead=newq;
if (qp) qp->prev=newq;
else queuetail=newq;
++queuewaiting;
return (0);
}
int msgq::tmpscan()
{
int found=0;
time(¤t_time);
DIR *tmpdir=opendir(TMPDIR);
if (!tmpdir) clog_msg_errno();
struct dirent *de;
std::string subdir;
std::string ctlfile, datfile, newctlfile, newdatfile;
struct stat stat_buf;
std::string qdir, qname;
while ((de=readdir(tmpdir)) != 0)
{
const char *p;
for (p=de->d_name; *p; p++)
if (!isdigit((int)(unsigned char)*p)) break;
if (*p) continue; // Subdirs must be named all digits
subdir=TMPDIR "/";
subdir += de->d_name;
DIR *subde=opendir(subdir.c_str());
while ((de=readdir(subde)) != 0 && found < 100)
{
if (strcmp(de->d_name, ".") == 0 ||
strcmp(de->d_name, "..") == 0) continue;
ctlfile=subdir;
ctlfile += '/';
ctlfile += de->d_name;
int i=-1;
if (stat(ctlfile.c_str(), &stat_buf)) continue;
size_t j=ctlfile.size();
while (j)
{
if (ctlfile[--j] == '/')
break;
if (ctlfile[j] == '.')
{
i=j;
break;
}
}
ino_t inum=stat_buf.st_ino;
// Cleanup timeout. Should always be sufficiently longer than
// the submit timeout set in submit.C via alarm_timeout.
if (stat_buf.st_mtime < current_time - 48 * 60 * 60)
{
if (de->d_name[0] == 'D')
{
datfile=subdir + "/C" +
(de->d_name+1);
if (stat(datfile.c_str(), &stat_buf)
== 0)
continue;
// Wait until the C file is
// purged
// Be carefull with Cnnnn.x files, because
// Cnnnn.1 is used to hold submission of all
// of them. A race condition can leave
// Cnnnn.1 in a submittable state, so if it
// is removed, other copies of this message
// can become submittable, during a very small
// window.
} else if (de->d_name[0] == 'C' && i >= 0)
{
// This race condition is handled simply
// by not removing Cxxxxx.n if Cxxxxx.n+1
// exists.
char nbuf[NUMBUFSIZE];
datfile=ctlfile.substr(0, i);
size_t n=atoi( ctlfile.c_str()+i+1);
++n;
datfile += '.';
datfile += libmail_str_size_t(n, nbuf);
if (stat(datfile.c_str(), &stat_buf)
== 0)
continue;
// Wait until the C.1 file is
// purged
unlink(ctlfile.c_str());
ctlfile=subdir + "/D" +
(de->d_name+1);
/* FALLTHRU */
}
unlink(ctlfile.c_str());
continue;
}
if (de->d_name[0] != 'C') continue;
if (i >= 0)
{
datfile=ctlfile.substr(0, i);
datfile += ".1";
if (ctlfile == datfile ||
stat(datfile.c_str(), &stat_buf) == 0)
continue;
}
datfile=subdir + "/D" + (de->d_name+1);
newdatfile=qmsgsdatname(inum);
newctlfile=qmsgsctlname(inum);
struct ctlfile ctf;
if ((access(datfile.c_str(), 0) == 0 &&
access(newdatfile.c_str(), 0) == 0) ||
access(newctlfile.c_str(), 0) == 0 ||
ctlfile_openfn(ctlfile.c_str(), &ctf, 0, 0))
{
clog_msg_start_err();
clog_msg_str("QUEUE FILE CORRUPTION: inode ");
clog_msg_uint(inum);
clog_msg_send();
utime(ctlfile.c_str(), 0);
// Keep it around
continue;
}
time_t nextattempt=current_time+delaytime;
if ((i=ctlfile_searchfirst(&ctf,
COMCTLFILE_SUBMITDELAY)) >= 0)
nextattempt=current_time+
atoi(ctf.lines[i]+1);
qname=qmsgqname(inum, nextattempt);
ctlfile_nextattempt(&ctf, nextattempt);
if (link(ctlfile.c_str(), qname.c_str()))
{
mkdir(qmsgqdir(current_time),0755);
if (link(ctlfile.c_str(), qname.c_str())
&& errno != EEXIST)
clog_msg_errno();
}
if (rename(datfile.c_str(), newdatfile.c_str()))
{
mkdir(qmsgsdir(inum), 0755);
// We may need to create this dir
rename(datfile.c_str(), newdatfile.c_str());
}
if (rename(ctlfile.c_str(), newctlfile.c_str()))
clog_msg_errno();
for (i=qname.size(); i; )
{
if (qname[--i] == '/')
break;
}
qdir=qname.substr(0, i);
qname=qname.substr(i+1);
++found;
ctlfile_close(&ctf);
queuescan3(qdir, qname, de->d_name);
}
closedir(subde);
if (stat(subdir.c_str(), &stat_buf) == 0 &&
stat_buf.st_mtime < current_time - 2 * 60 * 60)
rmdir(subdir.c_str()); // Just give it a try
}
closedir(tmpdir);
return (found);
}