Initial checkin

Imported from subversion report, converted to git. Updated all paths in
scripts and makefiles, reflecting the new directory hierarchy.

1 files changed, 80 insertions, 0 deletions

diff --git a/maildir/maildirlock.c b/maildir/maildirlock.c
new file mode 100644
index 0000000..5531f29
--- /dev/null
+++ b/maildir/maildirlock.c
@@ -0,0 +1,80 @@
+/*
+** Copyright 2003 Double Precision, Inc.
+** See COPYING for distribution information.
+*/
+
+#include "config.h"
+#include "maildirwatch.h"
+#include "maildircreate.h"
+#include "liblock/config.h"
+#include "liblock/liblock.h"
+#include "liblock/mail.h"
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+
+
+/*
+** Courier-IMAP compatible maildir lock.
+*/
+
+char *maildir_lock(const char *dir, struct maildirwatch *w,
+		   int *tryAnyway)
+{
+	struct maildir_tmpcreate_info createInfo;
+	char *tmpname;
+	char *newname;
+	int rc;
+
+	*tryAnyway=0;
+
+	maildir_tmpcreate_init(&createInfo);
+
+	createInfo.maildir=dir;
+	createInfo.uniq="courierlock";
+	createInfo.hostname=getenv("HOSTNAME");
+	createInfo.doordie=1;
+
+	if ((rc=maildir_tmpcreate_fd(&createInfo)) < 0)
+		return NULL;
+	close(rc);
+
+	tmpname=createInfo.tmpname;
+	newname=createInfo.newname;
+
+	createInfo.tmpname=NULL;
+	createInfo.newname=NULL;
+	maildir_tmpcreate_free(&createInfo);
+
+	/* HACK: newname now contains: ".../new/filename" */
+
+	strcpy(strrchr(newname, '/')-3, WATCHDOTLOCK);
+
+	while (ll_dotlock(newname, tmpname, 120) < 0)
+	{
+		if (errno == EEXIST)
+		{
+			if (w == NULL || maildirwatch_unlock(w, 120) < 0)
+				sleep(1);
+			continue;
+		}
+
+		if (errno == EAGAIN)
+		{
+			unlink(newname);
+			sleep(5);
+			continue;
+		}
+
+		free(newname);
+		newname=NULL;
+		*tryAnyway=1;
+		break;
+	}
+
+	free(tmpname);
+
+	return newname;
+}