--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/maildirwatch.c	Fri Oct 19 14:06:22 2007 +0200
@@ -0,0 +1,125 @@
+#include "getln.h"
+#include "substdio.h"
+#include "subfd.h"
+#include "prioq.h"
+#include "stralloc.h"
+#include "str.h"
+#include "exit.h"
+#include "hfield.h"
+#include "readwrite.h"
+#include "open.h"
+#include "headerbody.h"
+#include "maildir.h"
+
+#define FATAL "maildirwatch: fatal: "
+
+void die_nomem() { strerr_die2x(111,FATAL,"out of memory"); }
+
+stralloc recipient = {0};
+stralloc sender = {0};
+stralloc fromline = {0};
+stralloc text = {0};
+
+void addtext(s,n) char *s; int n;
+{
+ if (!stralloc_catb(&text,s,n)) die_nomem();
+ if (text.len > 158) text.len = 158;
+}
+void dobody(h) stralloc *h; { addtext(h->s,h->len); }
+void doheader(h) stralloc *h;
+{
+ int i;
+ switch(hfield_known(h->s,h->len))
+  {
+   case H_SUBJECT:
+     i = hfield_skipname(h->s,h->len);
+     addtext(h->s + i,h->len - i);
+     break;
+   case H_DELIVEREDTO:
+     i = hfield_skipname(h->s,h->len);
+     if (i < h->len)
+       if (!stralloc_copyb(&recipient,h->s + i,h->len - i - 1)) die_nomem();
+     break;
+   case H_RETURNPATH:
+     i = hfield_skipname(h->s,h->len);
+     if (i < h->len)
+       if (!stralloc_copyb(&sender,h->s + i,h->len - i - 1)) die_nomem();
+     break;
+   case H_FROM:
+     if (!stralloc_copyb(&fromline,h->s,h->len - 1)) die_nomem();
+     break;
+  }
+}
+void finishheader() { ; }
+
+stralloc filenames = {0};
+prioq pq = {0};
+
+char inbuf[SUBSTDIO_INSIZE];
+substdio ssin;
+
+void main()
+{
+ struct prioq_elt pe;
+ int fd;
+ int i;
+
+ if (maildir_chdir() == -1)
+   strerr_die1(111,FATAL,&maildir_chdir_err);
+
+ for (;;)
+  {
+   maildir_clean(&filenames);
+   if (maildir_scan(&pq,&filenames,1,0) == -1)
+     strerr_die1(111,FATAL,&maildir_scan_err);
+
+   substdio_putsflush(subfdout,"\033[;H\033[;J");
+
+   while (prioq_min(&pq,&pe))
+    {
+     prioq_delmin(&pq);
+
+     fd = open_read(filenames.s + pe.id);
+     if (fd == -1) continue;
+     substdio_fdbuf(&ssin,read,fd,inbuf,sizeof(inbuf));
+
+     if (!stralloc_copys(&sender,"?")) die_nomem();
+     if (!stralloc_copys(&recipient,"?")) die_nomem();
+     if (!stralloc_copys(&fromline,"")) die_nomem();
+     if (!stralloc_copys(&text,"")) die_nomem();
+     if (headerbody(&ssin,doheader,finishheader,dobody) == -1)
+       strerr_die2x(111,FATAL,"trouble reading new message");
+
+     for (i = 0;i < fromline.len;++i)
+       if ((fromline.s[i] < 32) || (fromline.s[i] > 126))
+         fromline.s[i] = '/';
+     for (i = 0;i < sender.len;++i)
+       if ((sender.s[i] < 32) || (sender.s[i] > 126))
+         sender.s[i] = '?';
+     for (i = 0;i < recipient.len;++i)
+       if ((recipient.s[i] < 32) || (recipient.s[i] > 126))
+         recipient.s[i] = '?';
+     for (i = 0;i < text.len;++i)
+       if ((text.s[i] < 32) || (text.s[i] > 126))
+         text.s[i] = '/';
+     substdio_puts(subfdout,"FROM ");
+     substdio_put(subfdout,sender.s,sender.len);
+     substdio_puts(subfdout," TO <");
+     substdio_put(subfdout,recipient.s,recipient.len);
+     substdio_puts(subfdout,">\n");
+     if (fromline.len)
+      {
+       substdio_puts(subfdout,"\033[1m");
+       substdio_put(subfdout,fromline.s,fromline.len);
+       substdio_puts(subfdout,"\033[0m\n");
+      }
+     substdio_put(subfdout,text.s,text.len);
+     substdio_puts(subfdout,"\n\n");
+
+     close(fd);
+    }
+
+   substdio_flush(subfdout);
+   sleep(30);
+  }
+}