From 89b7b67a13ebb7965cc7f13ad0595e2194a2d34c Mon Sep 17 00:00:00 2001
From: Jannis Hoffmann <jannis@fehcom.de>
Date: Wed, 3 Jul 2024 15:48:04 +0200
Subject: add sqmail-4.2.29a

---
 src/maildir.c | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 src/maildir.c

(limited to 'src/maildir.c')

diff --git a/src/maildir.c b/src/maildir.c
new file mode 100644
index 0000000..8832d75
--- /dev/null
+++ b/src/maildir.c
@@ -0,0 +1,97 @@
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "prioq.h"
+#include "env.h"
+#include "stralloc.h"
+#include "direntry.h"
+#include "datetime.h"
+#include "now.h"
+#include "str.h"
+#include "maildir.h"
+#include "logmsg.h"
+
+#define WHO "maildir"
+
+int maildir_chdir()
+{
+  char *maildir;
+  maildir = env_get("MAILDIR");
+  if (!maildir)
+    logmsg(WHO,111,ERROR,"MAILDIR not set");
+  if (chdir(maildir) == -1)
+    logmsg(WHO,110,FATAL,B("unable to chdir to: ",maildir));
+  return 0;
+}
+
+void maildir_clean(stralloc *tmpname)
+{
+  DIR *dir;
+  direntry *d;
+  datetime_sec time;
+  struct stat st;
+
+  time = now();
+
+  dir = opendir("tmp");
+  if (!dir) return;
+
+  while ((d = readdir(dir))) {
+   if (d->d_name[0] == '.') continue;
+   if (!stralloc_copys(tmpname,"tmp/")) break;
+   if (!stralloc_cats(tmpname,d->d_name)) break;
+   if (!stralloc_0(tmpname)) break;
+   if (stat(tmpname->s,&st) == 0)
+     if (time > st.st_atime + 129600)
+       unlink(tmpname->s);
+  }
+  closedir(dir);
+}
+
+static int append(prioq *pq, stralloc *filenames, char *subdir, datetime_sec time)
+{
+  DIR *dir;
+  direntry *d;
+  struct prioq_elt pe;
+  unsigned int pos;
+  struct stat st;
+
+  dir = opendir(subdir);
+  if (!dir)
+    logmsg(WHO,112,FATAL,B("unable to scan $MAILDIR/:",subdir));
+
+  while ((d = readdir(dir))) {
+    if (d->d_name[0] == '.') continue;
+    pos = filenames->len;
+    if (!stralloc_cats(filenames,subdir)) break;
+    if (!stralloc_cats(filenames,"/")) break;
+    if (!stralloc_cats(filenames,d->d_name)) break;
+    if (!stralloc_0(filenames)) break;
+    if (stat(filenames->s + pos,&st) == 0)
+      if (st.st_mtime < time) { /* don't want to mix up the order */
+        pe.dt = st.st_mtime;
+        pe.id = pos;
+        if (!prioq_insert(pq,&pe)) break;
+      }
+  }
+
+  closedir(dir);
+  if (d) logmsg(WHO,112,FATAL,B("unable to read $MAILDIR/:",subdir));
+  return 0;
+}
+
+int maildir_scan(prioq *pq, stralloc *filenames, int flagnew, int flagcur)
+{
+  struct prioq_elt pe;
+  datetime_sec time;
+
+  if (!stralloc_copys(filenames,"")) return 0;
+  while (prioq_min(pq,&pe)) 
+   prioq_delmin(pq);
+
+  time = now();
+
+  if (flagnew) if (append(pq,filenames,"new",time) == -1) return -1;
+  if (flagcur) if (append(pq,filenames,"cur",time) == -1) return -1;
+  return 0;
+}
-- 
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