Add portability infrastructure

1 files changed, 31 insertions, 0 deletions

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) ;
+    }
+  }
+}