| 1 | #include "sig.h" |
| 2 | #include "env.h" |
| 3 | #include "substdio.h" |
| 4 | #include "stralloc.h" |
| 5 | #include "subfd.h" |
| 6 | #include "getln.h" |
| 7 | #include "alloc.h" |
| 8 | #include "str.h" |
| 9 | #include "hfield.h" |
| 10 | #include "token822.h" |
| 11 | #include "error.h" |
| 12 | #include "gen_alloc.h" |
| 13 | #include "gen_allocdefs.h" |
| 14 | #include "headerbody.h" |
| 15 | #include "exit.h" |
| 16 | #include "open.h" |
| 17 | #include "quote.h" |
| 18 | #include "qmail.h" |
| 19 | |
| 20 | void die_noreceipt() { _exit(0); } |
| 21 | void die() { _exit(100); } |
| 22 | void die_temp() { _exit(111); } |
| 23 | void die_nomem() { |
| 24 | substdio_putsflush(subfderr,"qreceipt: fatal: out of memory\n"); die_temp(); } |
| 25 | void die_fork() { |
| 26 | substdio_putsflush(subfderr,"qreceipt: fatal: unable to fork\n"); die_temp(); } |
| 27 | void die_qqperm() { |
| 28 | substdio_putsflush(subfderr,"qreceipt: fatal: permanent qmail-queue error\n"); die(); } |
| 29 | void die_qqtemp() { |
| 30 | substdio_putsflush(subfderr,"qreceipt: fatal: temporary qmail-queue error\n"); die_temp(); } |
| 31 | void die_usage() { |
| 32 | substdio_putsflush(subfderr, |
| 33 | "qreceipt: usage: qreceipt deliveryaddress\n"); die(); } |
| 34 | void die_read() { |
| 35 | if (errno == error_nomem) die_nomem(); |
| 36 | substdio_putsflush(subfderr,"qreceipt: fatal: read error\n"); die_temp(); } |
| 37 | void doordie(sa,r) stralloc *sa; int r; { |
| 38 | if (r == 1) return; if (r == -1) die_nomem(); |
| 39 | substdio_putsflush(subfderr,"qreceipt: fatal: unable to parse this: "); |
| 40 | substdio_putflush(subfderr,sa->s,sa->len); die(); } |
| 41 | |
| 42 | char *target; |
| 43 | |
| 44 | int flagreceipt = 0; |
| 45 | |
| 46 | char *returnpath; |
| 47 | stralloc messageid = {0}; |
| 48 | stralloc sanotice = {0}; |
| 49 | |
| 50 | int rwnotice(addr) token822_alloc *addr; { token822_reverse(addr); |
| 51 | if (token822_unquote(&sanotice,addr) != 1) die_nomem(); |
| 52 | if (sanotice.len == str_len(target)) |
| 53 | if (!str_diffn(sanotice.s,target,sanotice.len)) |
| 54 | flagreceipt = 1; |
| 55 | token822_reverse(addr); return 1; } |
| 56 | |
| 57 | struct qmail qqt; |
| 58 | |
| 59 | stralloc quoted = {0}; |
| 60 | |
| 61 | void finishheader() |
| 62 | { |
| 63 | char *qqx; |
| 64 | |
| 65 | if (!flagreceipt) die_noreceipt(); |
| 66 | if (str_equal(returnpath,"")) die_noreceipt(); |
| 67 | if (str_equal(returnpath,"#@[]")) die_noreceipt(); |
| 68 | |
| 69 | if (!quote2("ed,returnpath)) die_nomem(); |
| 70 | |
| 71 | if (qmail_open(&qqt) == -1) die_fork(); |
| 72 | |
| 73 | qmail_puts(&qqt,"From: DELIVERY NOTICE SYSTEM <"); |
| 74 | qmail_put(&qqt,quoted.s,quoted.len); |
| 75 | qmail_puts(&qqt,">\n"); |
| 76 | qmail_puts(&qqt,"To: <"); |
| 77 | qmail_put(&qqt,quoted.s,quoted.len); |
| 78 | qmail_puts(&qqt,">\n"); |
| 79 | qmail_puts(&qqt,"Subject: success notice\n\ |
| 80 | \n\ |
| 81 | Hi! This is the qreceipt program. Your message was delivered to the\n\ |
| 82 | following address: "); |
| 83 | qmail_puts(&qqt,target); |
| 84 | qmail_puts(&qqt,". Thanks for asking.\n"); |
| 85 | if (messageid.s) |
| 86 | { |
| 87 | qmail_puts(&qqt,"Your "); |
| 88 | qmail_put(&qqt,messageid.s,messageid.len); |
| 89 | } |
| 90 | |
| 91 | qmail_from(&qqt,""); |
| 92 | qmail_to(&qqt,returnpath); |
| 93 | qqx = qmail_close(&qqt); |
| 94 | |
| 95 | if (*qqx) |
| 96 | if (*qqx == 'D') die_qqperm(); |
| 97 | else die_qqtemp(); |
| 98 | } |
| 99 | |
| 100 | stralloc hfbuf = {0}; |
| 101 | token822_alloc hfin = {0}; |
| 102 | token822_alloc hfrewrite = {0}; |
| 103 | token822_alloc hfaddr = {0}; |
| 104 | |
| 105 | void doheaderfield(h) |
| 106 | stralloc *h; |
| 107 | { |
| 108 | switch(hfield_known(h->s,h->len)) |
| 109 | { |
| 110 | case H_MESSAGEID: |
| 111 | if (!stralloc_copy(&messageid,h)) die_nomem(); |
| 112 | break; |
| 113 | case H_NOTICEREQUESTEDUPONDELIVERYTO: |
| 114 | doordie(h,token822_parse(&hfin,h,&hfbuf)); |
| 115 | doordie(h,token822_addrlist(&hfrewrite,&hfaddr,&hfin,rwnotice)); |
| 116 | break; |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | void dobody(h) stralloc *h; { ; } |
| 121 | |
| 122 | void main(argc,argv) |
| 123 | int argc; |
| 124 | char **argv; |
| 125 | { |
| 126 | sig_pipeignore(); |
| 127 | if (!(target = argv[1])) die_usage(); |
| 128 | if (!(returnpath = env_get("SENDER"))) die_usage(); |
| 129 | if (headerbody(subfdin,doheaderfield,finishheader,dobody) == -1) die_read(); |
| 130 | die_noreceipt(); |
| 131 | } |