libutil: add confirm() prompt - sbase - suckless unix tools
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---
(DIR) commit 8d07e5e8f639f3fabb45379786c9225f7312e6e5
(DIR) parent 8e18687849ad59c958becd5d9d4dbce462c34e57
(HTM) Author: Thibaut Aubin <t.aubin20@ejm.org>
Date: Thu, 10 Apr 2025 00:00:00 +0000
libutil: add confirm() prompt
Diffstat:
M Makefile | 1 +
A libutil/confirm.c | 22 ++++++++++++++++++++++
M libutil/eprintf.c | 2 --
M util.h | 4 ++++
4 files changed, 27 insertions(+), 2 deletions(-)
---
(DIR) diff --git a/Makefile b/Makefile
@@ -54,6 +54,7 @@ LIBUTILOBJ =\
libutil/concat.o\
libutil/cp.o\
libutil/crypt.o\
+ libutil/confirm.o\
libutil/ealloc.o\
libutil/enmasse.o\
libutil/eprintf.o\
(DIR) diff --git a/libutil/confirm.c b/libutil/confirm.c
@@ -0,0 +1,22 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdarg.h>
+#include <ctype.h>
+
+#include "../util.h"
+
+int
+confirm(const char *fmt, ...)
+{
+ int c, ans;
+ va_list ap;
+
+ va_start(ap, fmt);
+ xvprintf(fmt, ap);
+ va_end(ap);
+
+ c = getchar();
+ ans = (c == 'y' || c == 'Y');
+ while (c != '\n' && c != EOF)
+ c = getchar();
+ return ans;
+}
(DIR) diff --git a/libutil/eprintf.c b/libutil/eprintf.c
@@ -8,8 +8,6 @@
char *argv0;
-static void xvprintf(const char *, va_list);
-
void
eprintf(const char *fmt, ...)
{
(DIR) diff --git a/util.h b/util.h
@@ -4,6 +4,7 @@
#include <regex.h>
#include <stddef.h>
#include <stdio.h>
+#include <stdarg.h>
#include "arg.h"
#include "compat.h"
@@ -43,6 +44,9 @@ int fshut(FILE *, const char *);
void enprintf(int, const char *, ...);
void eprintf(const char *, ...);
void weprintf(const char *, ...);
+void xvprintf(const char *, va_list);
+
+int confirm(const char*, ...);
double estrtod(const char *);