linux-kernel - [PATCH 5.7 465/477] tools/bootconfig: Fix to use correct quotes for value

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Date:   Tue, 23 Jun 2020 21:57:42 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Masami Hiramatsu <mhiramat@...nel.org>,
        "Steven Rostedt (VMware)" <rostedt@...dmis.org>
Subject: [PATCH 5.7 465/477] tools/bootconfig: Fix to use correct quotes for value

From: Masami Hiramatsu <mhiramat@...nel.org>

commit 272da3279df191f028fd63d1683e5ecd56fcb13b upstream.

Fix bootconfig tool to select double or single quotes
correctly according to the value.

If a bootconfig value includes a double quote character,
we must use single-quotes to quote that value.

Link: http://lkml.kernel.org/r/159230245697.65555.12444299015852932304.stgit@devnote2

Cc: stable@...r.kernel.org
Fixes: 950313ebf79c ("tools: bootconfig: Add bootconfig command")
Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 tools/bootconfig/main.c |   14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

--- a/tools/bootconfig/main.c
+++ b/tools/bootconfig/main.c
@@ -14,13 +14,18 @@
 #include <linux/kernel.h>
 #include <linux/bootconfig.h>
 
-static int xbc_show_array(struct xbc_node *node)
+static int xbc_show_value(struct xbc_node *node)
 {
 	const char *val;
+	char q;
 	int i = 0;
 
 	xbc_array_for_each_value(node, val) {
-		printf("\"%s\"%s", val, node->next ? ", " : ";\n");
+		if (strchr(val, '"'))
+			q = '\'';
+		else
+			q = '"';
+		printf("%c%s%c%s", q, val, q, node->next ? ", " : ";\n");
 		i++;
 	}
 	return i;
@@ -48,10 +53,7 @@ static void xbc_show_compact_tree(void)
 			continue;
 		} else if (cnode && xbc_node_is_value(cnode)) {
 			printf("%s = ", xbc_node_get_data(node));
-			if (cnode->next)
-				xbc_show_array(cnode);
-			else
-				printf("\"%s\";\n", xbc_node_get_data(cnode));
+			xbc_show_value(cnode);
 		} else {
 			printf("%s;\n", xbc_node_get_data(node));
 		}