From 68876c38c4b30653c1779414954ce747a455253c Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sun, 11 Apr 2021 04:45:30 +0900
Subject: [PATCH] kconfig: mconf,nconf: remove unneeded '\0' termination after
snprintf()
snprintf() always terminates the destination buffer with '\0' even if
the buffer is not long enough. (In this case, the last element of the
buffer becomes '\0'.)
The explicit termination is unneeded.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
scripts/kconfig/mconf.c | 11 +++--------
scripts/kconfig/nconf.c | 12 +++---------
2 files changed, 6 insertions(+), 17 deletions(-)
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 4cfbe62938cd6..9d3cf510562f8 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -299,17 +299,12 @@ static char filename[PATH_MAX+1];
static void set_config_filename(const char *config_filename)
{
static char menu_backtitle[PATH_MAX+128];
- int size;
- size = snprintf(menu_backtitle, sizeof(menu_backtitle),
- "%s - %s", config_filename, rootmenu.prompt->text);
- if (size >= sizeof(menu_backtitle))
- menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
+ snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
+ config_filename, rootmenu.prompt->text);
set_dialog_backtitle(menu_backtitle);
- size = snprintf(filename, sizeof(filename), "%s", config_filename);
- if (size >= sizeof(filename))
- filename[sizeof(filename)-1] = '\0';
+ snprintf(filename, sizeof(filename), "%s", config_filename);
}
struct subtitle_part {
diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
index 0cce69ccb611c..06ebe16e4a382 100644
--- a/scripts/kconfig/nconf.c
+++ b/scripts/kconfig/nconf.c
@@ -633,16 +633,10 @@ static char filename[PATH_MAX+1];
static char menu_backtitle[PATH_MAX+128];
static const char *set_config_filename(const char *config_filename)
{
- int size;
+ snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
+ config_filename, rootmenu.prompt->text);
- size = snprintf(menu_backtitle, sizeof(menu_backtitle),
- "%s - %s", config_filename, rootmenu.prompt->text);
- if (size >= sizeof(menu_backtitle))
- menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
-
- size = snprintf(filename, sizeof(filename), "%s", config_filename);
- if (size >= sizeof(filename))
- filename[sizeof(filename)-1] = '\0';
+ snprintf(filename, sizeof(filename), "%s", config_filename);
return menu_backtitle;
}
--
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