From 54b6467013bfbdb3ee606961c02fbff1271ca582 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Fri, 19 Sep 2014 15:01:58 +0000
Subject: initial commit

---
 src/minutils/s6-freeramdisk.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 src/minutils/s6-freeramdisk.c

(limited to 'src/minutils/s6-freeramdisk.c')

diff --git a/src/minutils/s6-freeramdisk.c b/src/minutils/s6-freeramdisk.c
new file mode 100644
index 0000000..3b24656
--- /dev/null
+++ b/src/minutils/s6-freeramdisk.c
@@ -0,0 +1,21 @@
+/* ISC license. */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mount.h>
+#include <sys/ioctl.h>
+#include <skalibs/strerr2.h>
+
+#define USAGE "s6-freeramdisk ramdisk_device"
+
+int main (int argc, char const *const *argv)
+{
+  int fd ;
+  PROG = "s6-freeramdisk" ;
+  if (argc < 2) strerr_dieusage(100, USAGE) ;
+  fd = open(argv[1], O_RDWR) ;
+  if (fd < 0) strerr_diefu3sys(111, "open ", argv[1], " in read-write mode") ;
+  if (ioctl(fd, BLKFLSBUF) < 0) strerr_diefu2sys(111, "ioctl ", argv[1]) ;
+  return 0 ;
+}
-- 
cgit v1.3.1