repo/extra/lvm2/patches/fix-stdio-usage.patch

--- ./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;
--- a/lib/commands/toolcontext.c
+++ b/lib/commands/toolcontext.c
@@ -1649,7 +1649,7 @@ struct cmd_context *create_toolcontext(unsigned is_clvmd,
 	/* FIXME Make this configurable? */
 	reset_lvm_errno(1);

-#ifndef VALGRIND_POOL
+#if defined(__GLIBC__) && !defined(VALGRIND_POOL)
 	/* Set in/out stream buffering before glibc */
 	if (set_buffering
 #ifdef SYS_gettid
@@ -2031,7 +2031,7 @@ void destroy_toolcontext(struct cmd_context *cmd)
 	if (cmd->libmem)
 		dm_pool_destroy(cmd->libmem);

-#ifndef VALGRIND_POOL
+#if defined(__GLIBC__) && !defined(VALGRIND_POOL)
 	if (cmd->linebuffer) {
 		/* Reset stream buffering to defaults */
 		if (is_valid_fd(STDIN_FILENO) &&
--- a/tools/lvmcmdline.c
+++ b/tools/lvmcmdline.c
@@ -3055,6 +3055,7 @@ int lvm_split(char *str, int *argc, char **argv, int max)
 /* Make sure we have always valid filedescriptors 0,1,2 */
 static int _check_standard_fds(void)
 {
+#ifdef __GLIBC__
 	int err = is_valid_fd(STDERR_FILENO);

 	if (!is_valid_fd(STDIN_FILENO) &&
@@ -3081,6 +3082,12 @@ static int _check_standard_fds(void)
 		       strerror(errno));
 		return 0;
 	}
+#else
+	if (!is_valid_fd(STDERR_FILENO) ||
+	    !is_valid_fd(STDOUT_FILENO) ||
+	    !is_valid_fd(STDIN_FILENO))
+		return 0;
+#endif

 	return 1;
 }