From 1f5ddedec35efb92c30a86ae300ce6bc11050044 Mon Sep 17 00:00:00 2001

From: Harald Hoyer <harald@redhat.com>

Date: Wed, 16 May 2012 14:22:40 +0200

Subject: [PATCH] util.c: add in_initrd()

in_initrd() checks, if the stat() for the device for "/" is 1, which it

is for the initramfs.

(cherry picked from commit 9be346c94eab9de0edc30f08b6c6d070c3a17c79)

---

 src/shared/util.c |   15 +++++++++++++++

 src/shared/util.h |    1 +

 2 files changed, 16 insertions(+)

diff --git a/src/shared/util.c b/src/shared/util.c

index 61a6ad9..1254017 100644

--- a/src/shared/util.c

+++ b/src/shared/util.c

@@ -5639,3 +5639,18 @@ bool is_valid_documentation_url(const char *url) {

         return false;

 }

+

+bool in_initrd(void) {

+        static bool checked=false;

+        static bool is_in_initrd=false;

+

+        if (!checked) {

+                struct stat sb;

+                if (stat("/", &sb) == 0) {

+                        is_in_initrd = (sb.st_dev == 1);

+                        checked = true;

+                }

+        }

+

+        return is_in_initrd;

+}

diff --git a/src/shared/util.h b/src/shared/util.h

index d338b08..a47f0b1 100644

--- a/src/shared/util.h

+++ b/src/shared/util.h

@@ -512,4 +512,5 @@ int can_sleep(const char *type);

 bool is_valid_documentation_url(const char *url);

+bool in_initrd(void);

 #endif