--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qmail-inject.c	Fri Oct 19 14:06:22 2007 +0200
@@ -0,0 +1,773 @@
+#include "sig.h"
+#include "substdio.h"
+#include "stralloc.h"
+#include "subfd.h"
+#include "sgetopt.h"
+#include "getln.h"
+#include "alloc.h"
+#include "str.h"
+#include "fmt.h"
+#include "hfield.h"
+#include "token822.h"
+#include "control.h"
+#include "env.h"
+#include "gen_alloc.h"
+#include "gen_allocdefs.h"
+#include "error.h"
+#include "qmail.h"
+#include "now.h"
+#include "exit.h"
+#include "quote.h"
+#include "headerbody.h"
+#include "auto_qmail.h"
+#include "newfield.h"
+#include "constmap.h"
+
+#define LINELEN 80
+
+datetime_sec starttime;
+
+char *qmopts;
+int flagdeletesender = 0;
+int flagdeletefrom = 0;
+int flagdeletemessid = 0;
+int flagnamecomment = 0;
+int flaghackmess = 0;
+int flaghackrecip = 0;
+char *mailhost;
+char *mailuser;
+int mailusertokentype;
+char *mailrhost;
+char *mailruser;
+
+stralloc control_idhost = {0};
+stralloc control_defaultdomain = {0};
+stralloc control_defaulthost = {0};
+stralloc control_plusdomain = {0};
+
+stralloc sender = {0};
+stralloc envsbuf = {0};
+token822_alloc envs = {0};
+int flagrh;
+
+int flagqueue;
+struct qmail qqt;
+
+void put(s,len) char *s; int len;
+{ if (flagqueue) qmail_put(&qqt,s,len); else substdio_put(subfdout,s,len); }
+void puts(s) char *s; { put(s,str_len(s)); }
+
+void perm() { _exit(100); }
+void temp() { _exit(111); }
+void die_nomem() {
+ substdio_putsflush(subfderr,"qmail-inject: fatal: out of memory\n"); temp(); }
+void die_invalid(sa) stralloc *sa; {
+ substdio_putsflush(subfderr,"qmail-inject: fatal: invalid header field: ");
+ substdio_putflush(subfderr,sa->s,sa->len); perm(); }
+void die_qqt() {
+ substdio_putsflush(subfderr,"qmail-inject: fatal: unable to run qmail-queue\n"); temp(); }
+void die_chdir() {
+ substdio_putsflush(subfderr,"qmail-inject: fatal: internal bug\n"); temp(); }
+void die_read() {
+ if (errno == error_nomem) die_nomem();
+ substdio_putsflush(subfderr,"qmail-inject: fatal: read error\n"); temp(); }
+void doordie(sa,r) stralloc *sa; int r; {
+ if (r == 1) return; if (r == -1) die_nomem();
+ substdio_putsflush(subfderr,"qmail-inject: fatal: unable to parse this line:\n");
+ substdio_putflush(subfderr,sa->s,sa->len); perm(); }
+
+GEN_ALLOC_typedef(saa,stralloc,sa,len,a)
+GEN_ALLOC_readyplus(saa,stralloc,sa,len,a,i,n,x,10,saa_readyplus)
+
+static stralloc sauninit = {0};
+
+saa savedh = {0};
+saa hrlist = {0};
+saa tocclist = {0};
+saa hrrlist = {0};
+saa reciplist = {0};
+int flagresent;
+
+void exitnicely()
+{
+ char *qqx;
+
+ if (!flagqueue) substdio_flush(subfdout);
+
+ if (flagqueue)
+  {
+   int i;
+
+   if (!stralloc_0(&sender)) die_nomem();
+   qmail_from(&qqt,sender.s);
+
+   for (i = 0;i < reciplist.len;++i)
+    {
+     if (!stralloc_0(&reciplist.sa[i])) die_nomem();
+     qmail_to(&qqt,reciplist.sa[i].s);
+    }
+   if (flagrh)
+     if (flagresent)
+       for (i = 0;i < hrrlist.len;++i)
+	{
+         if (!stralloc_0(&hrrlist.sa[i])) die_nomem();
+	 qmail_to(&qqt,hrrlist.sa[i].s);
+	}
+     else
+       for (i = 0;i < hrlist.len;++i)
+	{
+         if (!stralloc_0(&hrlist.sa[i])) die_nomem();
+	 qmail_to(&qqt,hrlist.sa[i].s);
+	}
+
+   qqx = qmail_close(&qqt);
+   if (*qqx)
+     if (*qqx == 'D') {
+       substdio_puts(subfderr,"qmail-inject: fatal: ");
+       substdio_puts(subfderr,qqx + 1);
+       substdio_puts(subfderr,"\n");
+       substdio_flush(subfderr);
+       perm();
+     }
+     else {
+       substdio_puts(subfderr,"qmail-inject: fatal: ");
+       substdio_puts(subfderr,qqx + 1);
+       substdio_puts(subfderr,"\n");
+       substdio_flush(subfderr);
+       temp();
+     }
+  }
+
+ _exit(0);
+}
+
+void savedh_append(h)
+stralloc *h;
+{
+ if (!saa_readyplus(&savedh,1)) die_nomem();
+ savedh.sa[savedh.len] = sauninit;
+ if (!stralloc_copy(savedh.sa + savedh.len,h)) die_nomem();
+ ++savedh.len;
+}
+
+void savedh_print()
+{
+ int i;
+
+ for (i = 0;i < savedh.len;++i)
+   put(savedh.sa[i].s,savedh.sa[i].len);
+}
+
+stralloc defaultdomainbuf = {0};
+token822_alloc defaultdomain = {0};
+stralloc defaulthostbuf = {0};
+token822_alloc defaulthost = {0};
+stralloc plusdomainbuf = {0};
+token822_alloc plusdomain = {0};
+
+void rwroute(addr)
+token822_alloc *addr;
+{
+ if (addr->t[addr->len - 1].type == TOKEN822_AT)
+   while (addr->len)
+     if (addr->t[--addr->len].type == TOKEN822_COLON)
+       return;
+}
+
+void rwextraat(addr)
+token822_alloc *addr;
+{
+ int i;
+ if (addr->t[0].type == TOKEN822_AT)
+  {
+   --addr->len;
+   for (i = 0;i < addr->len;++i)
+     addr->t[i] = addr->t[i + 1];
+  }
+}
+
+void rwextradot(addr)
+token822_alloc *addr;
+{
+ int i;
+ if (addr->t[0].type == TOKEN822_DOT)
+  {
+   --addr->len;
+   for (i = 0;i < addr->len;++i)
+     addr->t[i] = addr->t[i + 1];
+  }
+}
+
+void rwnoat(addr)
+token822_alloc *addr;
+{
+ int i;
+ int shift;
+
+ for (i = 0;i < addr->len;++i)
+   if (addr->t[i].type == TOKEN822_AT)
+     return;
+ shift = defaulthost.len;
+ if (!token822_readyplus(addr,shift)) die_nomem();
+ for (i = addr->len - 1;i >= 0;--i)
+   addr->t[i + shift] = addr->t[i];
+ addr->len += shift;
+ for (i = 0;i < shift;++i)
+   addr->t[i] = defaulthost.t[shift - 1 - i];
+}
+
+void rwnodot(addr)
+token822_alloc *addr;
+{
+ int i;
+ int shift;
+ for (i = 0;i < addr->len;++i)
+  {
+   if (addr->t[i].type == TOKEN822_DOT)
+     return;
+   if (addr->t[i].type == TOKEN822_AT)
+     break;
+  }
+ for (i = 0;i < addr->len;++i)
+  {
+   if (addr->t[i].type == TOKEN822_LITERAL)
+     return;
+   if (addr->t[i].type == TOKEN822_AT)
+     break;
+  }
+ shift = defaultdomain.len;
+ if (!token822_readyplus(addr,shift)) die_nomem();
+ for (i = addr->len - 1;i >= 0;--i)
+   addr->t[i + shift] = addr->t[i];
+ addr->len += shift;
+ for (i = 0;i < shift;++i)
+   addr->t[i] = defaultdomain.t[shift - 1 - i];
+}
+
+void rwplus(addr)
+token822_alloc *addr;
+{
+ int i;
+ int shift;
+
+ if (addr->t[0].type != TOKEN822_ATOM) return;
+ if (!addr->t[0].slen) return;
+ if (addr->t[0].s[addr->t[0].slen - 1] != '+') return;
+
+ --addr->t[0].slen; /* remove + */
+
+ shift = plusdomain.len;
+ if (!token822_readyplus(addr,shift)) die_nomem();
+ for (i = addr->len - 1;i >= 0;--i)
+   addr->t[i + shift] = addr->t[i];
+ addr->len += shift;
+ for (i = 0;i < shift;++i)
+   addr->t[i] = plusdomain.t[shift - 1 - i];
+}
+
+void rwgeneric(addr)
+token822_alloc *addr;
+{
+ if (!addr->len) return; /* don't rewrite <> */
+ if (addr->len >= 2)
+   if (addr->t[1].type == TOKEN822_AT)
+     if (addr->t[0].type == TOKEN822_LITERAL)
+       if (!addr->t[0].slen) /* don't rewrite <foo@[]> */
+	 return;
+ rwroute(addr);
+ if (!addr->len) return; /* <@foo:> -> <> */
+ rwextradot(addr);
+ if (!addr->len) return; /* <.> -> <> */
+ rwextraat(addr);
+ if (!addr->len) return; /* <@> -> <> */
+ rwnoat(addr);
+ rwplus(addr);
+ rwnodot(addr);
+}
+
+int setreturn(addr)
+token822_alloc *addr;
+{
+ if (!sender.s)
+  {
+   token822_reverse(addr);
+   if (token822_unquote(&sender,addr) != 1) die_nomem();
+   if (flaghackrecip)
+     if (!stralloc_cats(&sender,"-@[]")) die_nomem();
+   token822_reverse(addr);
+  }
+ return 1;
+}
+
+int rwreturn(addr)
+token822_alloc *addr;
+{
+ rwgeneric(addr);
+ setreturn(addr);
+ return 1;
+}
+
+int rwsender(addr)
+token822_alloc *addr;
+{
+ rwgeneric(addr);
+ return 1;
+}
+
+void rwappend(addr,xl)
+token822_alloc *addr;
+saa *xl;
+{
+ token822_reverse(addr);
+ if (!saa_readyplus(xl,1)) die_nomem();
+ xl->sa[xl->len] = sauninit;
+ if (token822_unquote(&xl->sa[xl->len],addr) != 1) die_nomem();
+ ++xl->len;
+ token822_reverse(addr);
+}
+
+int rwhrr(addr) token822_alloc *addr;
+{ rwgeneric(addr); rwappend(addr,&hrrlist); return 1; }
+int rwhr(addr) token822_alloc *addr;
+{ rwgeneric(addr); rwappend(addr,&hrlist); return 1; }
+int rwtocc(addr) token822_alloc *addr;
+{ rwgeneric(addr); rwappend(addr,&hrlist); rwappend(addr,&tocclist); return 1; }
+
+int htypeseen[H_NUM];
+stralloc hfbuf = {0};
+token822_alloc hfin = {0};
+token822_alloc hfrewrite = {0};
+token822_alloc hfaddr = {0};
+
+void doheaderfield(h)
+stralloc *h;
+{
+  int htype;
+  int (*rw)() = 0;
+ 
+  htype = hfield_known(h->s,h->len);
+  if (flagdeletefrom) if (htype == H_FROM) return;
+  if (flagdeletemessid) if (htype == H_MESSAGEID) return;
+  if (flagdeletesender) if (htype == H_RETURNPATH) return;
+ 
+  if (htype)
+    htypeseen[htype] = 1;
+  else
+    if (!hfield_valid(h->s,h->len))
+      die_invalid(h);
+ 
+  switch(htype) {
+    case H_TO: case H_CC:
+      rw = rwtocc; break;
+    case H_BCC: case H_APPARENTLYTO:
+      rw = rwhr; break;
+    case H_R_TO: case H_R_CC: case H_R_BCC:
+      rw = rwhrr; break;
+    case H_RETURNPATH:
+      rw = rwreturn; break;
+    case H_SENDER: case H_FROM: case H_REPLYTO:
+    case H_RETURNRECEIPTTO: case H_ERRORSTO:
+    case H_R_SENDER: case H_R_FROM: case H_R_REPLYTO:
+      rw = rwsender; break;
+  }
+
+  if (rw) {
+    doordie(h,token822_parse(&hfin,h,&hfbuf));
+    doordie(h,token822_addrlist(&hfrewrite,&hfaddr,&hfin,rw));
+    if (token822_unparse(h,&hfrewrite,LINELEN) != 1)
+      die_nomem();
+  }
+ 
+  if (htype == H_BCC) return;
+  if (htype == H_R_BCC) return;
+  if (htype == H_RETURNPATH) return;
+  if (htype == H_CONTENTLENGTH) return; /* some things are just too stupid */
+  savedh_append(h);
+}
+
+void dobody(h)
+stralloc *h;
+{
+ put(h->s,h->len);
+}
+
+stralloc torecip = {0};
+token822_alloc tr = {0};
+
+void dorecip(s)
+char *s;
+{
+ if (!quote2(&torecip,s)) die_nomem();
+ switch(token822_parse(&tr,&torecip,&hfbuf))
+  {
+   case -1: die_nomem();
+   case 0:
+     substdio_puts(subfderr,"qmail-inject: fatal: unable to parse address: ");
+     substdio_puts(subfderr,s);
+     substdio_putsflush(subfderr,"\n");
+     perm();
+  }
+ token822_reverse(&tr);
+ rwgeneric(&tr);
+ rwappend(&tr,&reciplist);
+}
+
+stralloc defaultfrom = {0};
+token822_alloc df = {0};
+
+void defaultfrommake()
+{
+ char *fullname;
+ fullname = env_get("QMAILNAME");
+ if (!fullname) fullname = env_get("MAILNAME");
+ if (!fullname) fullname = env_get("NAME");
+ if (!token822_ready(&df,20)) die_nomem();
+ df.len = 0;
+ df.t[df.len].type = TOKEN822_ATOM;
+ df.t[df.len].s = "From";
+ df.t[df.len].slen = 4;
+ ++df.len;
+ df.t[df.len].type = TOKEN822_COLON;
+ ++df.len;
+ if (fullname && !flagnamecomment)
+  {
+   df.t[df.len].type = TOKEN822_QUOTE;
+   df.t[df.len].s = fullname;
+   df.t[df.len].slen = str_len(fullname);
+   ++df.len;
+   df.t[df.len].type = TOKEN822_LEFT;
+   ++df.len;
+  }
+ df.t[df.len].type = mailusertokentype;
+ df.t[df.len].s = mailuser;
+ df.t[df.len].slen = str_len(mailuser);
+ ++df.len;
+ if (mailhost)
+  {
+   df.t[df.len].type = TOKEN822_AT;
+   ++df.len;
+   df.t[df.len].type = TOKEN822_ATOM;
+   df.t[df.len].s = mailhost;
+   df.t[df.len].slen = str_len(mailhost);
+   ++df.len;
+  }
+ if (fullname && !flagnamecomment)
+  {
+   df.t[df.len].type = TOKEN822_RIGHT;
+   ++df.len;
+  }
+ if (fullname && flagnamecomment)
+  {
+   df.t[df.len].type = TOKEN822_COMMENT;
+   df.t[df.len].s = fullname;
+   df.t[df.len].slen = str_len(fullname);
+   ++df.len;
+  }
+ if (token822_unparse(&defaultfrom,&df,LINELEN) != 1) die_nomem();
+ doordie(&defaultfrom,token822_parse(&df,&defaultfrom,&hfbuf));
+ doordie(&defaultfrom,token822_addrlist(&hfrewrite,&hfaddr,&df,rwsender));
+ if (token822_unparse(&defaultfrom,&hfrewrite,LINELEN) != 1) die_nomem();
+}
+
+stralloc defaultreturnpath = {0};
+token822_alloc drp = {0};
+stralloc hackedruser = {0};
+char strnum[FMT_ULONG];
+
+void dodefaultreturnpath()
+{
+ if (!stralloc_copys(&hackedruser,mailruser)) die_nomem();
+ if (flaghackmess)
+  {
+   if (!stralloc_cats(&hackedruser,"-")) die_nomem();
+   if (!stralloc_catb(&hackedruser,strnum,fmt_ulong(strnum,(unsigned long) starttime))) die_nomem();
+   if (!stralloc_cats(&hackedruser,".")) die_nomem();
+   if (!stralloc_catb(&hackedruser,strnum,fmt_ulong(strnum,(unsigned long) getpid()))) die_nomem();
+  }
+ if (flaghackrecip)
+   if (!stralloc_cats(&hackedruser,"-")) die_nomem();
+ if (!token822_ready(&drp,10)) die_nomem();
+ drp.len = 0;
+ drp.t[drp.len].type = TOKEN822_ATOM;
+ drp.t[drp.len].s = "Return-Path";
+ drp.t[drp.len].slen = 11;
+ ++drp.len;
+ drp.t[drp.len].type = TOKEN822_COLON;
+ ++drp.len;
+ drp.t[drp.len].type = TOKEN822_QUOTE;
+ drp.t[drp.len].s = hackedruser.s;
+ drp.t[drp.len].slen = hackedruser.len;
+ ++drp.len;
+ if (mailrhost)
+  {
+   drp.t[drp.len].type = TOKEN822_AT;
+   ++drp.len;
+   drp.t[drp.len].type = TOKEN822_ATOM;
+   drp.t[drp.len].s = mailrhost;
+   drp.t[drp.len].slen = str_len(mailrhost);
+   ++drp.len;
+  }
+ if (token822_unparse(&defaultreturnpath,&drp,LINELEN) != 1) die_nomem();
+ doordie(&defaultreturnpath,token822_parse(&drp,&defaultreturnpath,&hfbuf));
+ doordie(&defaultreturnpath
+   ,token822_addrlist(&hfrewrite,&hfaddr,&drp,rwreturn));
+ if (token822_unparse(&defaultreturnpath,&hfrewrite,LINELEN) != 1) die_nomem();
+}
+
+int flagmft = 0;
+stralloc mft = {0};
+struct constmap mapmft;
+
+void mft_init()
+{
+  char *x;
+  int r;
+
+  x = env_get("QMAILMFTFILE");
+  if (!x) return;
+
+  r = control_readfile(&mft,x,0);
+  if (r == -1) die_read(); /*XXX*/
+  if (!r) return;
+
+  if (!constmap_init(&mapmft,mft.s,mft.len,0)) die_nomem();
+  flagmft = 1;
+}
+
+void finishmft()
+{
+  int i;
+  static stralloc sa = {0};
+  static stralloc sa2 = {0};
+
+  if (!flagmft) return;
+  if (htypeseen[H_MAILFOLLOWUPTO]) return;
+
+  for (i = 0;i < tocclist.len;++i)
+    if (constmap(&mapmft,tocclist.sa[i].s,tocclist.sa[i].len))
+      break;
+
+  if (i == tocclist.len) return;
+
+  puts("Mail-Followup-To: ");
+  i = tocclist.len;
+  while (i--) {
+    if (!stralloc_copy(&sa,&tocclist.sa[i])) die_nomem();
+    if (!stralloc_0(&sa)) die_nomem();
+    if (!quote2(&sa2,sa.s)) die_nomem();
+    put(sa2.s,sa2.len);
+    if (i) puts(",\n  ");
+  }
+  puts("\n");
+}
+
+void finishheader()
+{
+ flagresent =
+   htypeseen[H_R_SENDER] || htypeseen[H_R_FROM] || htypeseen[H_R_REPLYTO]
+   || htypeseen[H_R_TO] || htypeseen[H_R_CC] || htypeseen[H_R_BCC]
+   || htypeseen[H_R_DATE] || htypeseen[H_R_MESSAGEID];
+
+ if (!sender.s)
+   dodefaultreturnpath();
+
+ if (!flagqueue)
+  {
+   static stralloc sa = {0};
+   static stralloc sa2 = {0};
+
+   if (!stralloc_copy(&sa,&sender)) die_nomem();
+   if (!stralloc_0(&sa)) die_nomem();
+   if (!quote2(&sa2,sa.s)) die_nomem();
+
+   puts("Return-Path: <");
+   put(sa2.s,sa2.len);
+   puts(">\n");
+  }
+
+ /* could check at this point whether there are any recipients */
+ if (flagqueue)
+   if (qmail_open(&qqt) == -1) die_qqt();
+
+ if (flagresent)
+  {
+   if (!htypeseen[H_R_DATE])
+    {
+     if (!newfield_datemake(starttime)) die_nomem();
+     puts("Resent-");
+     put(newfield_date.s,newfield_date.len);
+    }
+   if (!htypeseen[H_R_MESSAGEID])
+    {
+     if (!newfield_msgidmake(control_idhost.s,control_idhost.len,starttime)) die_nomem();
+     puts("Resent-");
+     put(newfield_msgid.s,newfield_msgid.len);
+    }
+   if (!htypeseen[H_R_FROM])
+    {
+     defaultfrommake();
+     puts("Resent-");
+     put(defaultfrom.s,defaultfrom.len);
+    }
+   if (!htypeseen[H_R_TO] && !htypeseen[H_R_CC])
+     puts("Resent-Cc: recipient list not shown: ;\n");
+  }
+ else
+  {
+   if (!htypeseen[H_DATE])
+    {
+     if (!newfield_datemake(starttime)) die_nomem();
+     put(newfield_date.s,newfield_date.len);
+    }
+   if (!htypeseen[H_MESSAGEID])
+    {
+     if (!newfield_msgidmake(control_idhost.s,control_idhost.len,starttime)) die_nomem();
+     put(newfield_msgid.s,newfield_msgid.len);
+    }
+   if (!htypeseen[H_FROM])
+    {
+     defaultfrommake();
+     put(defaultfrom.s,defaultfrom.len);
+    }
+   if (!htypeseen[H_TO] && !htypeseen[H_CC])
+     puts("Cc: recipient list not shown: ;\n");
+   finishmft();
+  }
+
+ savedh_print();
+}
+
+void getcontrols()
+{
+ static stralloc sa = {0};
+ char *x;
+
+ mft_init();
+
+ if (chdir(auto_qmail) == -1) die_chdir();
+ if (control_init() == -1) die_read();
+
+ if (control_rldef(&control_defaultdomain,"control/defaultdomain",1,"defaultdomain") != 1)
+   die_read();
+ x = env_get("QMAILDEFAULTDOMAIN");
+ if (x) if (!stralloc_copys(&control_defaultdomain,x)) die_nomem();
+ if (!stralloc_copys(&sa,".")) die_nomem();
+ if (!stralloc_cat(&sa,&control_defaultdomain)) die_nomem();
+ doordie(&sa,token822_parse(&defaultdomain,&sa,&defaultdomainbuf));
+
+ if (control_rldef(&control_defaulthost,"control/defaulthost",1,"defaulthost") != 1)
+   die_read();
+ x = env_get("QMAILDEFAULTHOST");
+ if (x) if (!stralloc_copys(&control_defaulthost,x)) die_nomem();
+ if (!stralloc_copys(&sa,"@")) die_nomem();
+ if (!stralloc_cat(&sa,&control_defaulthost)) die_nomem();
+ doordie(&sa,token822_parse(&defaulthost,&sa,&defaulthostbuf));
+
+ if (control_rldef(&control_plusdomain,"control/plusdomain",1,"plusdomain") != 1)
+   die_read();
+ x = env_get("QMAILPLUSDOMAIN");
+ if (x) if (!stralloc_copys(&control_plusdomain,x)) die_nomem();
+ if (!stralloc_copys(&sa,".")) die_nomem();
+ if (!stralloc_cat(&sa,&control_plusdomain)) die_nomem();
+ doordie(&sa,token822_parse(&plusdomain,&sa,&plusdomainbuf));
+
+ if (control_rldef(&control_idhost,"control/idhost",1,"idhost") != 1)
+   die_read();
+ x = env_get("QMAILIDHOST");
+ if (x) if (!stralloc_copys(&control_idhost,x)) die_nomem();
+}
+
+#define RECIP_DEFAULT 1
+#define RECIP_ARGS 2
+#define RECIP_HEADER 3
+#define RECIP_AH 4
+
+void main(argc,argv)
+int argc;
+char **argv;
+{
+ int i;
+ int opt;
+ int recipstrategy;
+
+ sig_pipeignore();
+
+ starttime = now();
+
+ qmopts = env_get("QMAILINJECT");
+ if (qmopts)
+   while (*qmopts)
+     switch(*qmopts++)
+      {
+       case 'c': flagnamecomment = 1; break;
+       case 's': flagdeletesender = 1; break;
+       case 'f': flagdeletefrom = 1; break;
+       case 'i': flagdeletemessid = 1; break;
+       case 'r': flaghackrecip = 1; break;
+       case 'm': flaghackmess = 1; break;
+      }
+
+ mailhost = env_get("QMAILHOST");
+ if (!mailhost) mailhost = env_get("MAILHOST");
+ mailrhost = env_get("QMAILSHOST");
+ if (!mailrhost) mailrhost = mailhost;
+
+ mailuser = env_get("QMAILUSER");
+ if (!mailuser) mailuser = env_get("MAILUSER");
+ if (!mailuser) mailuser = env_get("USER");
+ if (!mailuser) mailuser = env_get("LOGNAME");
+ if (!mailuser) mailuser = "anonymous";
+ mailusertokentype = TOKEN822_ATOM;
+ if (quote_need(mailuser,str_len(mailuser))) mailusertokentype = TOKEN822_QUOTE;
+ mailruser = env_get("QMAILSUSER");
+ if (!mailruser) mailruser = mailuser;
+
+ for (i = 0;i < H_NUM;++i) htypeseen[i] = 0;
+
+ recipstrategy = RECIP_DEFAULT;
+ flagqueue = 1;
+
+ getcontrols();
+
+ if (!saa_readyplus(&hrlist,1)) die_nomem();
+ if (!saa_readyplus(&tocclist,1)) die_nomem();
+ if (!saa_readyplus(&hrrlist,1)) die_nomem();
+ if (!saa_readyplus(&reciplist,1)) die_nomem();
+
+ while ((opt = getopt(argc,argv,"aAhHnNf:")) != opteof)
+   switch(opt)
+    {
+     case 'a': recipstrategy = RECIP_ARGS; break;
+     case 'A': recipstrategy = RECIP_DEFAULT; break;
+     case 'h': recipstrategy = RECIP_HEADER; break;
+     case 'H': recipstrategy = RECIP_AH; break;
+     case 'n': flagqueue = 0; break;
+     case 'N': flagqueue = 1; break;
+     case 'f':
+       if (!quote2(&sender,optarg)) die_nomem();
+       doordie(&sender,token822_parse(&envs,&sender,&envsbuf));
+       token822_reverse(&envs);
+       rwgeneric(&envs);
+       token822_reverse(&envs);
+       if (token822_unquote(&sender,&envs) != 1) die_nomem();
+       break;
+     case '?':
+     default:
+       perm();
+    }
+ argc -= optind;
+ argv += optind;
+
+ if (recipstrategy == RECIP_DEFAULT)
+   recipstrategy = (*argv ? RECIP_ARGS : RECIP_HEADER);
+
+ if (recipstrategy != RECIP_HEADER)
+   while (*argv)
+     dorecip(*argv++);
+
+ flagrh = (recipstrategy != RECIP_ARGS);
+
+ if (headerbody(subfdin,doheaderfield,finishheader,dobody) == -1)
+   die_read();
+ exitnicely();
+}