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From: Warner Losh <imp@FreeBSD.org>
Date: Fri, 5 Jan 2018 07:09:29 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r327575 - head/lib/libefivar
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Author: imp
Date: Fri Jan  5 07:09:29 2018
New Revision: 327575
URL: https://svnweb.freebsd.org/changeset/base/327575

Log:
  Need to convert '/' back to '\' when creating a path. Ideally, this
  would be filesystem type dependent, but that's difficult to accomplish
  and it's unclear how the UEFI firmware will cope. Be conservative and
  make boot loaders cope instead.
  
  Sponsored by: Netflix

Modified:
  head/lib/libefivar/efivar-dp-xlate.c

Modified: head/lib/libefivar/efivar-dp-xlate.c
==============================================================================
--- head/lib/libefivar/efivar-dp-xlate.c	Fri Jan  5 07:09:24 2018	(r327574)
+++ head/lib/libefivar/efivar-dp-xlate.c	Fri Jan  5 07:09:29 2018	(r327575)
@@ -527,12 +527,17 @@ find_geom_efimedia(struct gmesh *mesh, const char *dev
 static int
 build_dp(const char *efimedia, const char *relpath, efidp *dp)
 {
-	char *fp, *dptxt = NULL;
+	char *fp, *dptxt = NULL, *cp, *rp;
 	int rv = 0;
 	efidp out = NULL;
 	size_t len;
 
-	fp = path_to_file_dp(relpath);
+	rp = strdup(relpath);
+	for (cp = rp; *cp; cp++)
+		if (*cp == '/')
+			*cp = '\\';
+	fp = path_to_file_dp(rp);
+	free(rp);
 	if (fp == NULL) {
 		rv = ENOMEM;
 		goto errout;