From f3ff6fb5db68bcd460e9880d5fb4902520dd645b Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Thu, 8 Feb 2018 14:56:40 +0900
Subject: [PATCH] kconfig: echo stdin to stdout if either is redirected
If stdio is not tty, conf_askvalue() puts additional new line to
prevent prompts from being concatenated into a single line. This
care is missing in conf_choice(), so a 'choice' prompt and the next
prompt are shown in the same line.
Move the code into xfgets() to cater to all cases. To improve this
more, let's echo stdin to stdout. This clarifies what keys were
input from stdio and the stdout looks like as if it were from tty.
I removed the isatty(2) check since stderr is unrelated here.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
---
scripts/kconfig/conf.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 92111a0776805..fe59f6df4b45b 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -76,6 +76,9 @@ static void xfgets(char *str, int size, FILE *in)
{
if (!fgets(str, size, in))
fprintf(stderr, "\nError in reading or end of file.\n");
+
+ if (!tty_stdio)
+ printf("%s", str);
}
static int conf_askvalue(struct symbol *sym, const char *def)
@@ -106,8 +109,6 @@ static int conf_askvalue(struct symbol *sym, const char *def)
case oldaskconfig:
fflush(stdout);
xfgets(line, sizeof(line), stdin);
- if (!tty_stdio)
- printf("\n");
return 1;
default:
break;
@@ -490,7 +491,7 @@ int main(int ac, char **av)
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
- tty_stdio = isatty(0) && isatty(1) && isatty(2);
+ tty_stdio = isatty(0) && isatty(1);
while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
if (opt == 's') {
--
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