grub2/0054-mkrescue-Check-xorriso-presence-before-doing-anythin.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Mon, 7 Aug 2017 18:05:17 +0200
Subject: [PATCH] mkrescue: Check xorriso presence before doing anything else.
mkrescue can't do anything useful without xorriso, so abort early if it's
not available.
---
util/grub-mkrescue.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/util/grub-mkrescue.c b/util/grub-mkrescue.c
index 238d4840e2f..38f1543974e 100644
--- a/util/grub-mkrescue.c
+++ b/util/grub-mkrescue.c
@@ -323,6 +323,7 @@ check_xorriso (const char *val)
char *buf = NULL;
size_t len = 0;
int ret = 0;
+ int wstatus = 0;
argv[0] = xorriso;
argv[1] = "-as";
@@ -347,8 +348,10 @@ check_xorriso (const char *val)
}
close (fd);
- waitpid (pid, NULL, 0);
+ waitpid (pid, &wstatus, 0);
free (buf);
+ if (!WIFEXITED (wstatus) || WEXITSTATUS(wstatus) != 0)
+ return 0;
return ret;
}
@@ -478,6 +481,10 @@ main (int argc, char *argv[])
if (!output_image)
grub_util_error ("%s", _("output file must be specified"));
+ if (!check_xorriso ("graft-points")) {
+ grub_util_error ("%s", _("xorriso not found"));
+ }
+
grub_init_all ();
grub_hostfs_init ();
grub_host_init ();