24 #include "auto_qmail.h"
33 #include "readsubdir.h"
35 /* critical timing feature #1: if not triggered, do not busy-loop */
36 /* critical timing feature #2: if triggered, respond within fixed time */
37 /* important timing feature: when triggered, respond instantly */
38 #define SLEEP_TODO 1500 /* check todo/ every 25 minutes in any case */
39 #define SLEEP_FUZZ 1 /* slop a bit on sleeps to avoid zeno effect */
40 #define SLEEP_FOREVER 86400 /* absolute maximum time spent in select() */
41 #define SLEEP_CLEANUP 76431 /* time between cleanups */
42 #define SLEEP_SYSFAIL 123
43 #define OSSIFIED 129600 /* 36 hours; _must_ exceed q-q's DEATH (24 hours) */
45 int lifetime
= 604800;
47 stralloc percenthack
= {0};
48 struct constmap mappercenthack
;
49 stralloc locals
= {0};
50 struct constmap maplocals
;
52 struct constmap mapvdoms
;
53 stralloc envnoathost
= {0};
54 stralloc bouncefrom
= {0};
55 stralloc bouncehost
= {0};
56 stralloc doublebounceto
= {0};
57 stralloc doublebouncehost
= {0};
59 char strnum2
[FMT_ULONG
];
60 char strnum3
[FMT_ULONG
];
63 char *chanaddr
[CHANNELS
] = { "local/", "remote/" };
64 char *chanstatusmsg
[CHANNELS
] = { " local ", " remote " };
65 char *tochan
[CHANNELS
] = { " to local ", " to remote " };
66 int chanfdout
[CHANNELS
] = { 1, 3 };
67 int chanfdin
[CHANNELS
] = { 2, 4 };
68 int chanskip
[CHANNELS
] = { 10, 20 };
70 int flagexitasap
= 0; void sigterm() { flagexitasap
= 1; }
71 int flagrunasap
= 0; void sigalrm() { flagrunasap
= 1; }
72 int flagreadasap
= 0; void sighup() { flagreadasap
= 1; }
74 void cleandied() { log1("alert: oh no! lost qmail-clean connection! dying...\n");
77 int flagspawnalive
[CHANNELS
];
78 void spawndied(c
) int c
; { log1("alert: oh no! lost spawn connection! dying...\n");
79 flagspawnalive
[c
] = 0; flagexitasap
= 1; }
81 #define REPORTMAX 10000
86 /* this file is too long ----------------------------------------- FILENAMES */
90 char fnmake_strnum
[FMT_ULONG
];
94 while (!stralloc_ready(&fn
,FMTQFN
)) nomem();
95 while (!stralloc_ready(&fn2
,FMTQFN
)) nomem();
98 void fnmake_info(id
) unsigned long id
; { fn
.len
= fmtqfn(fn
.s
,"info/",id
,1); }
99 void fnmake_todo(id
) unsigned long id
; { fn
.len
= fmtqfn(fn
.s
,"todo/",id
,0); }
100 void fnmake_mess(id
) unsigned long id
; { fn
.len
= fmtqfn(fn
.s
,"mess/",id
,1); }
101 void fnmake_foop(id
) unsigned long id
; { fn
.len
= fmtqfn(fn
.s
,"foop/",id
,0); }
102 void fnmake_split(id
) unsigned long id
; { fn
.len
= fmtqfn(fn
.s
,"",id
,1); }
103 void fnmake2_bounce(id
) unsigned long id
;
104 { fn2
.len
= fmtqfn(fn2
.s
,"bounce/",id
,0); }
105 void fnmake_chanaddr(id
,c
) unsigned long id
; int c
;
106 { fn
.len
= fmtqfn(fn
.s
,chanaddr
[c
],id
,1); }
109 /* this file is too long ----------------------------------------- REWRITING */
111 stralloc rwline
= {0};
113 /* 1 if by land, 2 if by sea, 0 if out of memory. not allowed to barf. */
114 /* may trash recip. must set up rwline, between a T and a \0. */
121 static stralloc addr
= {0};
124 if (!stralloc_copys(&rwline
,"T")) return 0;
125 if (!stralloc_copys(&addr
,recip
)) return 0;
127 i
= byte_rchr(addr
.s
,addr
.len
,'@');
129 if (!stralloc_cats(&addr
,"@")) return 0;
130 if (!stralloc_cat(&addr
,&envnoathost
)) return 0;
133 while (constmap(&mappercenthack
,addr
.s
+ i
+ 1,addr
.len
- i
- 1)) {
134 j
= byte_rchr(addr
.s
,i
,'%');
141 at
= byte_rchr(addr
.s
,addr
.len
,'@');
143 if (constmap(&maplocals
,addr
.s
+ at
+ 1,addr
.len
- at
- 1)) {
144 if (!stralloc_cat(&rwline
,&addr
)) return 0;
145 if (!stralloc_0(&rwline
)) return 0;
149 for (i
= 0;i
<= addr
.len
;++i
)
150 if (!i
|| (i
== at
+ 1) || (i
== addr
.len
) || ((i
> at
) && (addr
.s
[i
] == '.')))
151 if (x
= constmap(&mapvdoms
,addr
.s
+ i
,addr
.len
- i
)) {
153 if (!stralloc_cats(&rwline
,x
)) return 0;
154 if (!stralloc_cats(&rwline
,"-")) return 0;
155 if (!stralloc_cat(&rwline
,&addr
)) return 0;
156 if (!stralloc_0(&rwline
)) return 0;
160 if (!stralloc_cat(&rwline
,&addr
)) return 0;
161 if (!stralloc_0(&rwline
)) return 0;
165 void senderadd(sa
,sender
,recip
)
176 if (str_equal(sender
+ i
- 4,"-@[]"))
178 j
= byte_rchr(sender
,i
- 4,'@');
179 k
= str_rchr(recip
,'@');
180 if (recip
[k
] && (j
+ 5 <= i
))
182 /* owner-@host-@[] -> owner-recipbox=reciphost@host */
183 while (!stralloc_catb(sa
,sender
,j
)) nomem();
184 while (!stralloc_catb(sa
,recip
,k
)) nomem();
185 while (!stralloc_cats(sa
,"=")) nomem();
186 while (!stralloc_cats(sa
,recip
+ k
+ 1)) nomem();
187 while (!stralloc_cats(sa
,"@")) nomem();
188 while (!stralloc_catb(sa
,sender
+ j
+ 1,i
- 5 - j
)) nomem();
192 while (!stralloc_cats(sa
,sender
)) nomem();
196 /* this file is too long ---------------------------------------------- INFO */
198 int getinfo(sa
,dt
,id
)
205 static stralloc line
= {0};
211 fdinfo
= open_read(fn
.s
);
212 if (fdinfo
== -1) return 0;
213 if (fstat(fdinfo
,&st
) == -1) { close(fdinfo
); return 0; }
214 substdio_fdbuf(&ss
,read
,fdinfo
,buf
,sizeof(buf
));
215 if (getln(&ss
,&line
,&match
,'\0') == -1) { close(fdinfo
); return 0; }
217 if (!match
) return 0;
218 if (line
.s
[0] != 'F') return 0;
221 while (!stralloc_copys(sa
,line
.s
+ 1)) nomem();
222 while (!stralloc_0(sa
)) nomem();
227 /* this file is too long ------------------------------------- COMMUNICATION */
229 substdio sstoqc
; char sstoqcbuf
[1024];
230 substdio ssfromqc
; char ssfromqcbuf
[1024];
231 stralloc comm_buf
[CHANNELS
] = { {0}, {0} };
232 int comm_pos
[CHANNELS
];
237 substdio_fdbuf(&sstoqc
,write
,5,sstoqcbuf
,sizeof(sstoqcbuf
));
238 substdio_fdbuf(&ssfromqc
,read
,6,ssfromqcbuf
,sizeof(ssfromqcbuf
));
239 for (c
= 0;c
< CHANNELS
;++c
)
240 if (ndelay_on(chanfdout
[c
]) == -1)
241 /* this is so stupid: NDELAY semantics should be default on write */
242 spawndied(c
); /* drastic, but better than risking deadlock */
248 /* XXX: could allow a bigger buffer; say 10 recipients */
249 if (comm_buf
[c
].s
&& comm_buf
[c
].len
) return 0;
253 void comm_write(c
,delnum
,id
,sender
,recip
)
261 if (comm_buf
[c
].s
&& comm_buf
[c
].len
) return;
262 while (!stralloc_copys(&comm_buf
[c
],"")) nomem();
264 while (!stralloc_append(&comm_buf
[c
],&ch
)) nomem();
266 while (!stralloc_cats(&comm_buf
[c
],fn
.s
)) nomem();
267 while (!stralloc_0(&comm_buf
[c
])) nomem();
268 senderadd(&comm_buf
[c
],sender
,recip
);
269 while (!stralloc_0(&comm_buf
[c
])) nomem();
270 while (!stralloc_cats(&comm_buf
[c
],recip
)) nomem();
271 while (!stralloc_0(&comm_buf
[c
])) nomem();
275 void comm_selprep(nfds
,wfds
)
280 for (c
= 0;c
< CHANNELS
;++c
)
281 if (flagspawnalive
[c
])
282 if (comm_buf
[c
].s
&& comm_buf
[c
].len
)
284 FD_SET(chanfdout
[c
],wfds
);
285 if (*nfds
<= chanfdout
[c
])
286 *nfds
= chanfdout
[c
] + 1;
294 for (c
= 0;c
< CHANNELS
;++c
)
295 if (flagspawnalive
[c
])
296 if (comm_buf
[c
].s
&& comm_buf
[c
].len
)
297 if (FD_ISSET(chanfdout
[c
],wfds
))
301 len
= comm_buf
[c
].len
;
302 w
= write(chanfdout
[c
],comm_buf
[c
].s
+ comm_pos
[c
],len
- comm_pos
[c
]);
305 if ((w
== -1) && (errno
== error_pipe
))
308 continue; /* kernel select() bug; can't avoid busy-looping */
313 if (comm_pos
[c
] == len
)
320 /* this file is too long ------------------------------------------ CLEANUPS */
322 int flagcleanup
; /* if 1, cleanupdir is initialized and ready */
323 readsubdir cleanupdir
;
324 datetime_sec cleanuptime
;
332 void cleanup_selprep(wakeup
)
333 datetime_sec
*wakeup
;
335 if (flagcleanup
) *wakeup
= 0;
336 if (*wakeup
> cleanuptime
) *wakeup
= cleanuptime
;
347 if (recent
< cleanuptime
) return;
348 readsubdir_init(&cleanupdir
,"mess",pausedir
);
352 switch(readsubdir_next(&cleanupdir
,&id
))
358 cleanuptime
= recent
+ SLEEP_CLEANUP
;
364 if (stat(fn
.s
,&st
) == -1) return; /* probably qmail-queue deleted it */
365 if (recent
<= st
.st_atime
+ OSSIFIED
) return;
368 if (stat(fn
.s
,&st
) == 0) return;
369 if (errno
!= error_noent
) return;
371 if (stat(fn
.s
,&st
) == 0) return;
372 if (errno
!= error_noent
) return;
375 if (substdio_putflush(&sstoqc
,fn
.s
,fn
.len
) == -1) { cleandied(); return; }
376 if (substdio_get(&ssfromqc
,&ch
,1) != 1) { cleandied(); return; }
378 log3("warning: qmail-clean unable to clean up ",fn
.s
,"\n");
382 /* this file is too long ----------------------------------- PRIORITY QUEUES */
384 prioq pqdone
= {0}; /* -todo +info; HOPEFULLY -local -remote */
385 prioq pqchan
[CHANNELS
] = { {0}, {0} };
386 /* pqchan 0: -todo +info +local ?remote */
387 /* pqchan 1: -todo +info ?local +remote */
388 prioq pqfail
= {0}; /* stat() failure; has to be pqadded again */
394 struct prioq_elt pechan
[CHANNELS
];
395 int flagchan
[CHANNELS
];
399 #define CHECKSTAT if (errno != error_noent) goto fail;
402 if (stat(fn
.s
,&st
) == -1)
405 return; /* someone yanking our chain */
409 if (stat(fn
.s
,&st
) != -1) return; /* look, ma, dad crashed writing info! */
412 for (c
= 0;c
< CHANNELS
;++c
)
414 fnmake_chanaddr(id
,c
);
415 if (stat(fn
.s
,&st
) == -1) { flagchan
[c
] = 0; CHECKSTAT
}
416 else { flagchan
[c
] = 1; pechan
[c
].id
= id
; pechan
[c
].dt
= st
.st_mtime
; }
419 for (c
= 0;c
< CHANNELS
;++c
)
421 while (!prioq_insert(&pqchan
[c
],&pechan
[c
])) nomem();
423 for (c
= 0;c
< CHANNELS
;++c
) if (flagchan
[c
]) break;
426 pe
.id
= id
; pe
.dt
= now();
427 while (!prioq_insert(&pqdone
,&pe
)) nomem();
433 log3("warning: unable to stat ",fn
.s
,"; will try again later\n");
434 pe
.id
= id
; pe
.dt
= now() + SLEEP_SYSFAIL
;
435 while (!prioq_insert(&pqfail
,&pe
)) nomem();
444 readsubdir_init(&rs
,"info",pausedir
);
446 while (x
= readsubdir_next(&rs
,&id
))
455 time_t ut
[2]; /* XXX: more portable than utimbuf, but still worrisome */
457 for (c
= 0;c
< CHANNELS
;++c
)
458 while (prioq_min(&pqchan
[c
],&pe
))
460 prioq_delmin(&pqchan
[c
]);
461 fnmake_chanaddr(pe
.id
,c
);
462 ut
[0] = ut
[1] = pe
.dt
;
463 if (utime(fn
.s
,ut
) == -1)
464 log3("warning: unable to utime ",fn
.s
,"; message will be retried too soon\n");
472 for (c
= 0;c
< CHANNELS
;++c
)
475 for (i
= 0;i
< pqchan
[c
].len
;++i
)
476 pqchan
[c
].p
[i
].dt
= recent
;
480 /* this file is too long ---------------------------------------------- JOBS */
484 int refs
; /* if 0, this struct is unused */
501 while (!(jo
= (struct job
*) alloc(numjobs
* sizeof(struct job
)))) nomem();
502 for (j
= 0;j
< numjobs
;++j
)
512 for (j
= 0;j
< numjobs
;++j
) if (!jo
[j
].refs
) return 1;
516 int job_open(id
,channel
)
521 for (j
= 0;j
< numjobs
;++j
) if (!jo
[j
].refs
) break;
522 if (j
== numjobs
) return -1;
525 jo
[j
].channel
= channel
;
527 jo
[j
].flaghiteof
= 0;
537 if (0 < --jo
[j
].refs
) return;
541 if (jo
[j
].flaghiteof
&& !jo
[j
].numtodo
)
543 fnmake_chanaddr(jo
[j
].id
,jo
[j
].channel
);
544 if (unlink(fn
.s
) == -1)
546 log3("warning: unable to unlink ",fn
.s
,"; will try again later\n");
547 pe
.dt
= now() + SLEEP_SYSFAIL
;
552 for (c
= 0;c
< CHANNELS
;++c
) if (c
!= jo
[j
].channel
)
554 fnmake_chanaddr(jo
[j
].id
,c
);
555 if (stat(fn
.s
,&st
) == 0) return; /* more channels going */
556 if (errno
!= error_noent
)
558 log3("warning: unable to stat ",fn
.s
,"\n");
559 break; /* this is the only reason for HOPEFULLY */
563 while (!prioq_insert(&pqdone
,&pe
)) nomem();
568 while (!prioq_insert(&pqchan
[jo
[j
].channel
],&pe
)) nomem();
572 /* this file is too long ------------------------------------------- BOUNCES */
574 char *stripvdomprepend(recip
)
582 i
= str_rchr(recip
,'@');
583 if (!recip
[i
]) return recip
;
584 domain
= recip
+ i
+ 1;
585 domainlen
= str_len(domain
);
587 for (i
= 0;i
<= domainlen
;++i
)
588 if ((i
== 0) || (i
== domainlen
) || (domain
[i
] == '.'))
589 if (prepend
= constmap(&mapvdoms
,domain
+ i
,domainlen
- i
))
591 if (!*prepend
) break;
592 i
= str_len(prepend
);
593 if (str_diffn(recip
,prepend
,i
)) break;
594 if (recip
[i
] != '-') break;
595 return recip
+ i
+ 1;
600 stralloc bouncetext
= {0};
602 void addbounce(id
,recip
,report
)
610 while (!stralloc_copys(&bouncetext
,"<")) nomem();
611 while (!stralloc_cats(&bouncetext
,stripvdomprepend(recip
))) nomem();
612 for (pos
= 0;pos
< bouncetext
.len
;++pos
)
613 if (bouncetext
.s
[pos
] == '\n')
614 bouncetext
.s
[pos
] = '_';
615 while (!stralloc_cats(&bouncetext
,">:\n")) nomem();
616 while (!stralloc_cats(&bouncetext
,report
)) nomem();
618 if (report
[str_len(report
) - 1] != '\n')
619 while (!stralloc_cats(&bouncetext
,"\n")) nomem();
620 for (pos
= bouncetext
.len
- 2;pos
> 0;--pos
)
621 if (bouncetext
.s
[pos
] == '\n')
622 if (bouncetext
.s
[pos
- 1] == '\n')
623 bouncetext
.s
[pos
] = '/';
624 while (!stralloc_cats(&bouncetext
,"\n")) nomem();
628 fd
= open_append(fn2
.s
);
630 log1("alert: unable to append to bounce message; HELP! sleeping...\n");
634 while (pos
< bouncetext
.len
)
636 w
= write(fd
,bouncetext
.s
+ pos
,bouncetext
.len
- pos
);
639 log1("alert: unable to append to bounce message; HELP! sleeping...\n");
660 static stralloc sender
= {0};
661 static stralloc quoted
= {0};
665 if (!getinfo(&sender
,&birth
,id
)) return 0; /* XXX: print warning */
667 /* owner-@host-@[] -> owner-@host */
669 if (str_equal(sender
.s
+ sender
.len
- 5,"-@[]"))
672 sender
.s
[sender
.len
- 1] = 0;
677 if (stat(fn2
.s
,&st
) == -1)
679 if (errno
== error_noent
)
681 log3("warning: unable to stat ",fn2
.s
,"\n");
684 if (str_equal(sender
.s
,"#@[]"))
685 log3("triple bounce: discarding ",fn2
.s
,"\n");
688 if (qmail_open(&qqt
) == -1)
689 { log1("warning: unable to start qmail-queue, will try later\n"); return 0; }
692 if (*sender
.s
) { bouncesender
= ""; bouncerecip
= sender
.s
; }
693 else { bouncesender
= "#@[]"; bouncerecip
= doublebounceto
.s
; }
695 while (!newfield_datemake(now())) nomem();
696 qmail_put(&qqt
,newfield_date
.s
,newfield_date
.len
);
697 qmail_puts(&qqt
,"From: ");
698 while (!quote("ed
,&bouncefrom
)) nomem();
699 qmail_put(&qqt
,quoted
.s
,quoted
.len
);
700 qmail_puts(&qqt
,"@");
701 qmail_put(&qqt
,bouncehost
.s
,bouncehost
.len
);
702 qmail_puts(&qqt
,"\nTo: ");
703 while (!quote2("ed
,bouncerecip
)) nomem();
704 qmail_put(&qqt
,quoted
.s
,quoted
.len
);
706 Subject: failure notice\n\
708 Hi. This is the qmail-send program at ");
709 qmail_put(&qqt
,bouncehost
.s
,bouncehost
.len
);
710 qmail_puts(&qqt
,*sender
.s ?
".\n\
711 I'm afraid I wasn't able to deliver your message to the following addresses.\n\
712 This is a permanent error; I've given up. Sorry it didn't work out.\n\
715 I tried to deliver a bounce message to this address, but the bounce bounced!\n\
719 fd
= open_read(fn2
.s
);
724 substdio_fdbuf(&ssread
,read
,fd
,inbuf
,sizeof(inbuf
));
725 while ((r
= substdio_get(&ssread
,buf
,sizeof(buf
))) > 0)
726 qmail_put(&qqt
,buf
,r
);
732 qmail_puts(&qqt
,*sender
.s ?
"--- Below this line is a copy of the message.\n\n" : "--- Below this line is the original bounce.\n\n");
733 qmail_puts(&qqt
,"Return-Path: <");
734 while (!quote2("ed
,sender
.s
)) nomem();
735 qmail_put(&qqt
,quoted
.s
,quoted
.len
);
736 qmail_puts(&qqt
,">\n");
738 fd
= open_read(fn
.s
);
743 substdio_fdbuf(&ssread
,read
,fd
,inbuf
,sizeof(inbuf
));
744 while ((r
= substdio_get(&ssread
,buf
,sizeof(buf
))) > 0)
745 qmail_put(&qqt
,buf
,r
);
751 qmail_from(&qqt
,bouncesender
);
752 qmail_to(&qqt
,bouncerecip
);
753 if (*qmail_close(&qqt
))
754 { log1("warning: trouble injecting bounce message, will try later\n"); return 0; }
756 strnum2
[fmt_ulong(strnum2
,id
)] = 0;
757 log2("bounce msg ",strnum2
);
758 strnum2
[fmt_ulong(strnum2
,qp
)] = 0;
759 log3(" qp ",strnum2
,"\n");
761 if (unlink(fn2
.s
) == -1)
763 log3("warning: unable to unlink ",fn2
.s
,"\n");
770 /* this file is too long ---------------------------------------- DELIVERIES */
782 unsigned long masterdelid
= 1;
783 unsigned int concurrency
[CHANNELS
] = { 10, 20 };
784 unsigned int concurrencyused
[CHANNELS
] = { 0, 0 };
785 struct del
*d
[CHANNELS
];
786 stralloc dline
[CHANNELS
];
794 for (c
= 0;c
< CHANNELS
;++c
) {
795 strnum2
[fmt_ulong(strnum2
,(unsigned long) concurrencyused
[c
])] = 0;
796 strnum3
[fmt_ulong(strnum3
,(unsigned long) concurrency
[c
])] = 0;
797 log2(chanstatusmsg
[c
],strnum2
);
800 if (flagexitasap
) log1(" exitasap");
808 for (c
= 0;c
< CHANNELS
;++c
)
810 flagspawnalive
[c
] = 1;
811 while (!(d
[c
] = (struct del
*) alloc(concurrency
[c
] * sizeof(struct del
))))
813 for (i
= 0;i
< concurrency
[c
];++i
)
814 { d
[c
][i
].used
= 0; d
[c
][i
].recip
.s
= 0; }
816 while (!stralloc_copys(&dline
[c
],"")) nomem();
824 for (c
= 0;c
< CHANNELS
;++c
)
825 if (flagspawnalive
[c
]) /* if dead, nothing we can do about its jobs */
826 if (concurrencyused
[c
]) return 0;
833 return flagspawnalive
[c
] && comm_canwrite(c
) && (concurrencyused
[c
] < concurrency
[c
]);
836 void del_start(j
,mpos
,recip
)
845 if (!flagspawnalive
[c
]) return;
846 if (!comm_canwrite(c
)) return;
848 for (i
= 0;i
< concurrency
[c
];++i
) if (!d
[c
][i
].used
) break;
849 if (i
== concurrency
[c
]) return;
851 if (!stralloc_copys(&d
[c
][i
].recip
,recip
)) { nomem(); return; }
852 if (!stralloc_0(&d
[c
][i
].recip
)) { nomem(); return; }
853 d
[c
][i
].j
= j
; ++jo
[j
].refs
;
854 d
[c
][i
].delid
= masterdelid
++;
856 d
[c
][i
].used
= 1; ++concurrencyused
[c
];
858 comm_write(c
,i
,jo
[j
].id
,jo
[j
].sender
.s
,recip
);
860 strnum2
[fmt_ulong(strnum2
,d
[c
][i
].delid
)] = 0;
861 strnum3
[fmt_ulong(strnum3
,jo
[j
].id
)] = 0;
862 log2("starting delivery ",strnum2
);
863 log3(": msg ",strnum3
,tochan
[c
]);
869 void markdone(c
,id
,pos
)
876 fnmake_chanaddr(id
,c
);
879 fd
= open_write(fn
.s
);
881 if (fstat(fd
,&st
) == -1) { close(fd
); break; }
882 if (seek_set(fd
,pos
) == -1) { close(fd
); break; }
883 if (write(fd
,"D",1) != 1) { close(fd
); break; }
884 /* further errors -> double delivery without us knowing about it, oh well */
888 log3("warning: trouble marking ",fn
.s
,"; message will be delivered twice!\n");
898 r
= read(chanfdin
[c
],delbuf
,sizeof(delbuf
));
900 if (r
== 0) { spawndied(c
); return; }
901 for (i
= 0;i
< r
;++i
)
904 while (!stralloc_append(&dline
[c
],&ch
)) nomem();
905 if (dline
[c
].len
> REPORTMAX
)
906 dline
[c
].len
= REPORTMAX
;
907 /* qmail-lspawn and qmail-rspawn are responsible for keeping it short */
908 /* but from a security point of view, we don't trust rspawn */
909 if (!ch
&& (dline
[c
].len
> 1))
911 delnum
= (unsigned int) (unsigned char) dline
[c
].s
[0];
912 if ((delnum
< 0) || (delnum
>= concurrency
[c
]) || !d
[c
][delnum
].used
)
913 log1("warning: internal error: delivery report out of range\n");
916 strnum3
[fmt_ulong(strnum3
,d
[c
][delnum
].delid
)] = 0;
917 if (dline
[c
].s
[1] == 'Z')
918 if (jo
[d
[c
][delnum
].j
].flagdying
)
922 while (!stralloc_cats(&dline
[c
],"I'm not going to try again; this message has been in the queue too long.\n")) nomem();
923 while (!stralloc_0(&dline
[c
])) nomem();
925 switch(dline
[c
].s
[1])
928 log3("delivery ",strnum3
,": success: ");
929 logsafe(dline
[c
].s
+ 2);
931 markdone(c
,jo
[d
[c
][delnum
].j
].id
,d
[c
][delnum
].mpos
);
932 --jo
[d
[c
][delnum
].j
].numtodo
;
935 log3("delivery ",strnum3
,": deferral: ");
936 logsafe(dline
[c
].s
+ 2);
940 log3("delivery ",strnum3
,": failure: ");
941 logsafe(dline
[c
].s
+ 2);
943 addbounce(jo
[d
[c
][delnum
].j
].id
,d
[c
][delnum
].recip
.s
,dline
[c
].s
+ 2);
944 markdone(c
,jo
[d
[c
][delnum
].j
].id
,d
[c
][delnum
].mpos
);
945 --jo
[d
[c
][delnum
].j
].numtodo
;
948 log3("delivery ",strnum3
,": report mangled, will defer\n");
950 job_close(d
[c
][delnum
].j
);
951 d
[c
][delnum
].used
= 0; --concurrencyused
[c
];
959 void del_selprep(nfds
,rfds
)
964 for (c
= 0;c
< CHANNELS
;++c
)
965 if (flagspawnalive
[c
])
967 FD_SET(chanfdin
[c
],rfds
);
968 if (*nfds
<= chanfdin
[c
])
969 *nfds
= chanfdin
[c
] + 1;
977 for (c
= 0;c
< CHANNELS
;++c
)
978 if (flagspawnalive
[c
])
979 if (FD_ISSET(chanfdin
[c
],rfds
))
984 /* this file is too long -------------------------------------------- PASSES */
988 unsigned long id
; /* if 0, need a new pass */
989 int j
; /* defined if id; job number */
990 int fd
; /* defined if id; reading from {local,remote} */
991 seek_pos mpos
; /* defined if id; mark position */
1000 for (c
= 0;c
< CHANNELS
;++c
) pass
[c
].id
= 0;
1003 void pass_selprep(wakeup
)
1004 datetime_sec
*wakeup
;
1007 struct prioq_elt pe
;
1008 if (flagexitasap
) return;
1009 for (c
= 0;c
< CHANNELS
;++c
)
1012 { *wakeup
= 0; return; }
1014 for (c
= 0;c
< CHANNELS
;++c
)
1016 if (prioq_min(&pqchan
[c
],&pe
))
1017 if (*wakeup
> pe
.dt
)
1019 if (prioq_min(&pqfail
,&pe
))
1020 if (*wakeup
> pe
.dt
)
1022 if (prioq_min(&pqdone
,&pe
))
1023 if (*wakeup
> pe
.dt
)
1027 static datetime_sec
squareroot(x
) /* result^2 <= x < (result + 1)^2 */
1028 datetime_sec x
; /* assuming: >= 0 */
1036 for (j
= 15;j
>= 0;--j
)
1038 y21
= (y
<< (j
+ 1)) + (1 << (j
+ j
));
1039 if (y21
<= x
- yy
) { y
+= (1 << j
); yy
+= y21
; }
1044 datetime_sec
nextretry(birth
,c
)
1050 if (birth
> recent
) n
= 0;
1051 else n
= squareroot(recent
- birth
); /* no need to add fuzz to recent */
1053 return birth
+ n
* n
;
1060 struct prioq_elt pe
;
1061 static stralloc line
= {0};
1064 if (flagexitasap
) return;
1068 if (!job_avail()) return;
1069 if (!prioq_min(&pqchan
[c
],&pe
)) return;
1070 if (pe
.dt
> recent
) return;
1071 fnmake_chanaddr(pe
.id
,c
);
1073 prioq_delmin(&pqchan
[c
]);
1075 pass
[c
].fd
= open_read(fn
.s
);
1076 if (pass
[c
].fd
== -1) goto trouble
;
1077 if (!getinfo(&line
,&birth
,pe
.id
)) { close(pass
[c
].fd
); goto trouble
; }
1079 substdio_fdbuf(&pass
[c
].ss
,read
,pass
[c
].fd
,pass
[c
].buf
,sizeof(pass
[c
].buf
));
1080 pass
[c
].j
= job_open(pe
.id
,c
);
1081 jo
[pass
[c
].j
].retry
= nextretry(birth
,c
);
1082 jo
[pass
[c
].j
].flagdying
= (recent
> birth
+ lifetime
);
1083 while (!stralloc_copy(&jo
[pass
[c
].j
].sender
,&line
)) nomem();
1086 if (!del_avail(c
)) return;
1088 if (getln(&pass
[c
].ss
,&line
,&match
,'\0') == -1)
1090 fnmake_chanaddr(pass
[c
].id
,c
);
1091 log3("warning: trouble reading ",fn
.s
,"; will try again later\n");
1093 job_close(pass
[c
].j
);
1100 jo
[pass
[c
].j
].flaghiteof
= 1;
1101 job_close(pass
[c
].j
);
1108 ++jo
[pass
[c
].j
].numtodo
;
1109 del_start(pass
[c
].j
,pass
[c
].mpos
,line
.s
+ 1);
1114 fnmake_chanaddr(pass
[c
].id
,c
);
1115 log3("warning: unknown record type in ",fn
.s
,"!\n");
1117 job_close(pass
[c
].j
);
1122 pass
[c
].mpos
+= line
.len
;
1126 log3("warning: trouble opening ",fn
.s
,"; will try again later\n");
1127 pe
.dt
= recent
+ SLEEP_SYSFAIL
;
1128 while (!prioq_insert(&pqchan
[c
],&pe
)) nomem();
1136 struct prioq_elt pe
;
1139 for (c
= 0;c
< CHANNELS
;++c
)
1141 fnmake_chanaddr(id
,c
);
1142 if (stat(fn
.s
,&st
) == 0) return; /* false alarm; consequence of HOPEFULLY */
1143 if (errno
!= error_noent
)
1145 log3("warning: unable to stat ",fn
.s
,"; will try again later\n");
1151 if (stat(fn
.s
,&st
) == 0) return;
1152 if (errno
!= error_noent
)
1154 log3("warning: unable to stat ",fn
.s
,"; will try again later\n");
1159 if (stat(fn
.s
,&st
) == -1)
1161 if (errno
== error_noent
) return;
1162 log3("warning: unable to stat ",fn
.s
,"; will try again later\n");
1166 /* -todo +info -local -remote ?bounce */
1167 if (!injectbounce(id
))
1168 goto fail
; /* injectbounce() produced error message */
1170 strnum3
[fmt_ulong(strnum3
,id
)] = 0;
1171 log3("end msg ",strnum3
,"\n");
1173 /* -todo +info -local -remote -bounce */
1175 if (unlink(fn
.s
) == -1)
1177 log3("warning: unable to unlink ",fn
.s
,"; will try again later\n");
1181 /* -todo -info -local -remote -bounce; we can relax */
1183 if (substdio_putflush(&sstoqc
,fn
.s
,fn
.len
) == -1) { cleandied(); return; }
1184 if (substdio_get(&ssfromqc
,&ch
,1) != 1) { cleandied(); return; }
1186 log3("warning: qmail-clean unable to clean up ",fn
.s
,"\n");
1191 pe
.id
= id
; pe
.dt
= now() + SLEEP_SYSFAIL
;
1192 while (!prioq_insert(&pqdone
,&pe
)) nomem();
1198 struct prioq_elt pe
;
1200 for (c
= 0;c
< CHANNELS
;++c
) pass_dochan(c
);
1201 if (prioq_min(&pqfail
,&pe
))
1202 if (pe
.dt
<= recent
)
1204 prioq_delmin(&pqfail
);
1207 if (prioq_min(&pqdone
,&pe
))
1208 if (pe
.dt
<= recent
)
1210 prioq_delmin(&pqdone
);
1216 /* this file is too long ---------------------------------------------- TODO */
1218 datetime_sec nexttodorun
;
1219 DIR *tododir
; /* if 0, have to opendir again */
1220 stralloc todoline
= {0};
1221 char todobuf
[SUBSTDIO_INSIZE
];
1222 char todobufinfo
[512];
1223 char todobufchan
[CHANNELS
][1024];
1228 nexttodorun
= now();
1232 void todo_selprep(nfds
,rfds
,wakeup
)
1235 datetime_sec
*wakeup
;
1237 if (flagexitasap
) return;
1238 trigger_selprep(nfds
,rfds
);
1239 if (tododir
) *wakeup
= 0;
1240 if (*wakeup
> nexttodorun
) *wakeup
= nexttodorun
;
1247 substdio ss
; int fd
;
1248 substdio ssinfo
; int fdinfo
;
1249 substdio sschan
[CHANNELS
];
1250 int fdchan
[CHANNELS
];
1251 int flagchan
[CHANNELS
];
1252 struct prioq_elt pe
;
1264 for (c
= 0;c
< CHANNELS
;++c
) fdchan
[c
] = -1;
1266 if (flagexitasap
) return;
1270 if (!trigger_pulled(rfds
))
1271 if (recent
< nexttodorun
)
1274 tododir
= opendir("todo");
1280 nexttodorun
= recent
+ SLEEP_TODO
;
1283 d
= readdir(tododir
);
1290 if (str_equal(d
->d_name
,".")) return;
1291 if (str_equal(d
->d_name
,"..")) return;
1292 len
= scan_ulong(d
->d_name
,&id
);
1293 if (!len
|| d
->d_name
[len
]) return;
1297 fd
= open_read(fn
.s
);
1298 if (fd
== -1) { log3("warning: unable to open ",fn
.s
,"\n"); return; }
1301 /* just for the statistics */
1302 if (stat(fn
.s
,&st
) == -1)
1303 { log3("warning: unable to stat ",fn
.s
,"\n"); goto fail
; }
1305 for (c
= 0;c
< CHANNELS
;++c
)
1307 fnmake_chanaddr(id
,c
);
1308 if (unlink(fn
.s
) == -1) if (errno
!= error_noent
)
1309 { log3("warning: unable to unlink ",fn
.s
,"\n"); goto fail
; }
1313 if (unlink(fn
.s
) == -1) if (errno
!= error_noent
)
1314 { log3("warning: unable to unlink ",fn
.s
,"\n"); goto fail
; }
1316 fdinfo
= open_excl(fn
.s
);
1318 { log3("warning: unable to create ",fn
.s
,"\n"); goto fail
; }
1320 strnum3
[fmt_ulong(strnum3
,id
)] = 0;
1321 log3("new msg ",strnum3
,"\n");
1323 for (c
= 0;c
< CHANNELS
;++c
) flagchan
[c
] = 0;
1325 substdio_fdbuf(&ss
,read
,fd
,todobuf
,sizeof(todobuf
));
1326 substdio_fdbuf(&ssinfo
,write
,fdinfo
,todobufinfo
,sizeof(todobufinfo
));
1333 if (getln(&ss
,&todoline
,&match
,'\0') == -1)
1335 /* perhaps we're out of memory, perhaps an I/O error */
1337 log3("warning: trouble reading ",fn
.s
,"\n"); goto fail
;
1341 switch(todoline
.s
[0])
1344 scan_ulong(todoline
.s
+ 1,&uid
);
1347 scan_ulong(todoline
.s
+ 1,&pid
);
1350 if (substdio_putflush(&ssinfo
,todoline
.s
,todoline
.len
) == -1)
1353 log3("warning: trouble writing to ",fn
.s
,"\n"); goto fail
;
1355 log2("info msg ",strnum3
);
1356 strnum2
[fmt_ulong(strnum2
,(unsigned long) st
.st_size
)] = 0;
1357 log2(": bytes ",strnum2
);
1358 log1(" from <"); logsafe(todoline
.s
+ 1);
1359 strnum2
[fmt_ulong(strnum2
,pid
)] = 0;
1360 log2("> qp ",strnum2
);
1361 strnum2
[fmt_ulong(strnum2
,uid
)] = 0;
1362 log2(" uid ",strnum2
);
1366 switch(rewrite(todoline
.s
+ 1))
1368 case 0: nomem(); goto fail
;
1369 case 2: c
= 1; break;
1370 default: c
= 0; break;
1372 if (fdchan
[c
] == -1)
1374 fnmake_chanaddr(id
,c
);
1375 fdchan
[c
] = open_excl(fn
.s
);
1376 if (fdchan
[c
] == -1)
1377 { log3("warning: unable to create ",fn
.s
,"\n"); goto fail
; }
1378 substdio_fdbuf(&sschan
[c
]
1379 ,write
,fdchan
[c
],todobufchan
[c
],sizeof(todobufchan
[c
]));
1382 if (substdio_bput(&sschan
[c
],rwline
.s
,rwline
.len
) == -1)
1384 fnmake_chanaddr(id
,c
);
1385 log3("warning: trouble writing to ",fn
.s
,"\n"); goto fail
;
1390 log3("warning: unknown record type in ",fn
.s
,"\n"); goto fail
;
1397 if (substdio_flush(&ssinfo
) == -1)
1398 { log3("warning: trouble writing to ",fn
.s
,"\n"); goto fail
; }
1399 if (fsync(fdinfo
) == -1)
1400 { log3("warning: trouble fsyncing ",fn
.s
,"\n"); goto fail
; }
1401 close(fdinfo
); fdinfo
= -1;
1403 for (c
= 0;c
< CHANNELS
;++c
)
1404 if (fdchan
[c
] != -1)
1406 fnmake_chanaddr(id
,c
);
1407 if (substdio_flush(&sschan
[c
]) == -1)
1408 { log3("warning: trouble writing to ",fn
.s
,"\n"); goto fail
; }
1409 if (fsync(fdchan
[c
]) == -1)
1410 { log3("warning: trouble fsyncing ",fn
.s
,"\n"); goto fail
; }
1411 close(fdchan
[c
]); fdchan
[c
] = -1;
1415 if (substdio_putflush(&sstoqc
,fn
.s
,fn
.len
) == -1) { cleandied(); return; }
1416 if (substdio_get(&ssfromqc
,&ch
,1) != 1) { cleandied(); return; }
1419 log3("warning: qmail-clean unable to clean up ",fn
.s
,"\n");
1423 pe
.id
= id
; pe
.dt
= now();
1424 for (c
= 0;c
< CHANNELS
;++c
)
1426 while (!prioq_insert(&pqchan
[c
],&pe
)) nomem();
1428 for (c
= 0;c
< CHANNELS
;++c
) if (flagchan
[c
]) break;
1430 while (!prioq_insert(&pqdone
,&pe
)) nomem();
1435 if (fd
!= -1) close(fd
);
1436 if (fdinfo
!= -1) close(fdinfo
);
1437 for (c
= 0;c
< CHANNELS
;++c
)
1438 if (fdchan
[c
] != -1) close(fdchan
[c
]);
1442 /* this file is too long ---------------------------------------------- MAIN */
1444 int getcontrols() { if (control_init() == -1) return 0;
1445 if (control_readint(&lifetime
,"control/queuelifetime") == -1) return 0;
1446 if (control_readint(&concurrency
[0],"control/concurrencylocal") == -1) return 0;
1447 if (control_readint(&concurrency
[1],"control/concurrencyremote") == -1) return 0;
1448 if (control_rldef(&envnoathost
,"control/envnoathost",1,"envnoathost") != 1) return 0;
1449 if (control_rldef(&bouncefrom
,"control/bouncefrom",0,"MAILER-DAEMON") != 1) return 0;
1450 if (control_rldef(&bouncehost
,"control/bouncehost",1,"bouncehost") != 1) return 0;
1451 if (control_rldef(&doublebouncehost
,"control/doublebouncehost",1,"doublebouncehost") != 1) return 0;
1452 if (control_rldef(&doublebounceto
,"control/doublebounceto",0,"postmaster") != 1) return 0;
1453 if (!stralloc_cats(&doublebounceto
,"@")) return 0;
1454 if (!stralloc_cat(&doublebounceto
,&doublebouncehost
)) return 0;
1455 if (!stralloc_0(&doublebounceto
)) return 0;
1456 if (control_readfile(&locals
,"control/locals",1) != 1) return 0;
1457 if (!constmap_init(&maplocals
,locals
.s
,locals
.len
,0)) return 0;
1458 switch(control_readfile(&percenthack
,"control/percenthack",0))
1461 case 0: if (!constmap_init(&mappercenthack
,"",0,0)) return 0; break;
1462 case 1: if (!constmap_init(&mappercenthack
,percenthack
.s
,percenthack
.len
,0)) return 0; break;
1464 switch(control_readfile(&vdoms
,"control/virtualdomains",0))
1467 case 0: if (!constmap_init(&mapvdoms
,"",0,1)) return 0; break;
1468 case 1: if (!constmap_init(&mapvdoms
,vdoms
.s
,vdoms
.len
,1)) return 0; break;
1472 stralloc newlocals
= {0};
1473 stralloc newvdoms
= {0};
1475 void regetcontrols()
1479 if (control_readfile(&newlocals
,"control/locals",1) != 1)
1480 { log1("alert: unable to reread control/locals\n"); return; }
1481 r
= control_readfile(&newvdoms
,"control/virtualdomains",0);
1483 { log1("alert: unable to reread control/virtualdomains\n"); return; }
1485 constmap_free(&maplocals
);
1486 constmap_free(&mapvdoms
);
1488 while (!stralloc_copy(&locals
,&newlocals
)) nomem();
1489 while (!constmap_init(&maplocals
,locals
.s
,locals
.len
,0)) nomem();
1493 while (!stralloc_copy(&vdoms
,&newvdoms
)) nomem();
1494 while (!constmap_init(&mapvdoms
,vdoms
.s
,vdoms
.len
,1)) nomem();
1497 while (!constmap_init(&mapvdoms
,"",0,1)) nomem();
1502 if (chdir(auto_qmail
) == -1)
1504 log1("alert: unable to reread controls: unable to switch to home directory\n");
1508 while (chdir("queue") == -1)
1510 log1("alert: unable to switch back to queue directory; HELP! sleeping...\n");
1518 datetime_sec wakeup
;
1525 if (chdir(auto_qmail
) == -1)
1526 { log1("alert: cannot start: unable to switch to home directory\n"); _exit(111); }
1528 { log1("alert: cannot start: unable to read controls\n"); _exit(111); }
1529 if (chdir("queue") == -1)
1530 { log1("alert: cannot start: unable to switch to queue directory\n"); _exit(111); }
1532 sig_termcatch(sigterm
);
1533 sig_alarmcatch(sigalrm
);
1534 sig_hangupcatch(sighup
);
1538 fd
= open_write("lock/sendmutex");
1540 { log1("alert: cannot start: unable to open mutex\n"); _exit(111); }
1541 if (lock_exnb(fd
) == -1)
1542 { log1("alert: cannot start: qmail-send is already running\n"); _exit(111); }
1545 for (c
= 0;c
< CHANNELS
;++c
)
1551 r
= read(chanfdin
[c
],&ch
,1);
1552 while ((r
== -1) && (errno
== error_intr
));
1554 { log1("alert: cannot start: hath the daemon spawn no fire?\n"); _exit(111); }
1555 u
= (unsigned int) (unsigned char) ch
;
1556 if (concurrency
[c
] > u
) concurrency
[c
] = u
;
1557 numjobs
+= concurrency
[c
];
1571 while (!flagexitasap
|| !del_canexit())
1575 if (flagrunasap
) { flagrunasap
= 0; pqrun(); }
1576 if (flagreadasap
) { flagreadasap
= 0; reread(); }
1578 wakeup
= recent
+ SLEEP_FOREVER
;
1583 comm_selprep(&nfds
,&wfds
);
1584 del_selprep(&nfds
,&rfds
);
1585 pass_selprep(&wakeup
);
1586 todo_selprep(&nfds
,&rfds
,&wakeup
);
1587 cleanup_selprep(&wakeup
);
1589 if (wakeup
<= recent
) tv
.tv_sec
= 0;
1590 else tv
.tv_sec
= wakeup
- recent
+ SLEEP_FUZZ
;
1593 if (select(nfds
,&rfds
,&wfds
,(fd_set
*) 0,&tv
) == -1)
1594 if (errno
== error_intr
)
1597 log1("warning: trouble in select\n");
1610 log1("status: exiting\n");