From 1172c1e817d26d5f9bb0ec289dd9a71aadf2759c Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Tue, 20 Apr 2021 00:00:22 +0000
Subject:  Add portability infrastructure

---
 src/os/linux-os_mount_tmpfs.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 src/os/linux-os_mount_tmpfs.c

(limited to 'src/os/linux-os_mount_tmpfs.c')

diff --git a/src/os/linux-os_mount_tmpfs.c b/src/os/linux-os_mount_tmpfs.c
new file mode 100644
index 0000000..0e173d0
--- /dev/null
+++ b/src/os/linux-os_mount_tmpfs.c
@@ -0,0 +1,31 @@
+/* ISC license. */
+
+#include <errno.h>
+
+#include <sys/mount.h>
+
+#include <skalibs/strerr2.h>
+
+#include "os.h"
+
+void os_mount_tmpfs (char const *point, unsigned int mounttype)
+{
+  if (mounttype)
+  {
+    if (mounttype == 2)
+    {
+      if (mount("tmpfs", point, "tmpfs", MS_REMOUNT | MS_NODEV | MS_NOSUID, "mode=0755") == -1)
+        strerr_diefu2sys(111, "remount ", point) ;
+    }
+    else
+    {
+      if (umount(point) == -1)
+      {
+        if (errno != EINVAL)
+          strerr_warnwu2sys("umount ", point) ;
+      }
+      if (mount("tmpfs", point, "tmpfs", MS_NODEV | MS_NOSUID, "mode=0755") == -1)
+        strerr_diefu2sys(111, "mount tmpfs on ", point) ;
+    }
+  }
+}
-- 
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