# --- T2-COPYRIGHT-NOTE-BEGIN ---
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# 
# T2 SDE: package/*/lvm2/fix-stdio-usage.patch.musl
# Copyright (C) 2021 The T2 SDE Project
# 
# More information can be found in the files COPYING and README.
# 
# This patch file is dual-licensed. It is available under the license the
# patched project is licensed under, as long as it is an OpenSource license
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# of the GNU General Public License as published by the Free Software
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# --- T2-COPYRIGHT-NOTE-END ---

--- ./tools/lvmcmdline.c
+++ ./tools/lvmcmdline.c
@@ -1252,7 +1252,7 @@
 	int err = is_valid_fd(STDERR_FILENO);
 
 	if (!is_valid_fd(STDIN_FILENO) &&
-	    !(stdin = fopen(_PATH_DEVNULL, "r"))) {
+	    !freopen(_PATH_DEVNULL, "r", stdin)) {
 		if (err)
 			perror("stdin stream open");
 		else
@@ -1262,7 +1262,7 @@
 	}
 
 	if (!is_valid_fd(STDOUT_FILENO) &&
-	    !(stdout = fopen(_PATH_DEVNULL, "w"))) {
+	    !freopen(_PATH_DEVNULL, "w", stdout)) {
 		if (err)
 			perror("stdout stream open");
 		/* else no stdout */
@@ -1270,7 +1270,7 @@
 	}
 
 	if (!is_valid_fd(STDERR_FILENO) &&
-	    !(stderr = fopen(_PATH_DEVNULL, "w"))) {
+	    !freopen(_PATH_DEVNULL, "w", stderr)) {
 		printf("stderr stream open: %s\n",
 		       strerror(errno));
 		return 0;
--- ./lib/commands/toolcontext.c.orig
+++ ./lib/commands/toolcontext.c
@@ -1860,7 +1860,7 @@
 	/* FIXME Make this configurable? */
 	reset_lvm_errno(1);
 
-#ifndef VALGRIND_POOL
+#if !defined(VALGRIND_POOL) && defined(__GLIBC__)
 	/* Set in/out stream buffering before glibc */
 	if (set_buffering) {
 		/* Allocate 2 buffers */
@@ -2241,5 +2241,5 @@
 		dm_pool_destroy(cmd->libmem);
 
-#ifndef VALGRIND_POOL
+#if !defined(VALGRIND_POOL) && defined(__GLIBC__)
 	if (cmd->linebuffer) {
 		/* Reset stream buffering to defaults */