From 90b12bd71bb9fc79a4640b9112c13ef529d0196a Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Fri, 5 Dec 2014 22:26:11 +0000
Subject: Initial commit

---
 src/libs6/ftrigw_clean.c | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 src/libs6/ftrigw_clean.c

(limited to 'src/libs6/ftrigw_clean.c')

diff --git a/src/libs6/ftrigw_clean.c b/src/libs6/ftrigw_clean.c
new file mode 100644
index 0000000..1198828
--- /dev/null
+++ b/src/libs6/ftrigw_clean.c
@@ -0,0 +1,39 @@
+/* ISC license. */
+
+#include <unistd.h>
+#include <errno.h>
+#include <skalibs/direntry.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/djbunix.h>
+#include "ftrig1.h"
+#include <s6/ftrigw.h>
+
+int ftrigw_clean (char const *path)
+{
+  unsigned int pathlen = str_len(path) ;
+  int e = 0 ;
+  DIR *dir = opendir(path) ;
+  if (!dir) return 0 ;
+  {
+    char tmp[pathlen + FTRIG1_PREFIXLEN + 45] ;
+    byte_copy(tmp, pathlen, path) ;
+    tmp[pathlen] = '/' ; tmp[pathlen + FTRIG1_PREFIXLEN + 44] = 0 ;
+    for (;;)
+    {
+      direntry *d ;
+      int fd ;
+      errno = 0 ;
+      d = readdir(dir) ;
+      if (!d) break ;
+      if (str_diffn(d->d_name, FTRIG1_PREFIX, FTRIG1_PREFIXLEN)) continue ;
+      if (str_len(d->d_name) != FTRIG1_PREFIXLEN + 43) continue ;
+      byte_copy(tmp + pathlen + 1, FTRIG1_PREFIXLEN + 43, d->d_name) ;
+      fd = open_write(tmp) ;
+      if (fd >= 0) fd_close(fd) ;
+      else if ((errno == ENXIO) && (unlink(tmp) < 0)) e = errno ;
+    }
+  }
+  if (errno) e = errno ;
+  dir_close(dir) ;
+  return e ? (errno = e, 0) : 1 ;
+}
-- 
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