From 5242eef8fc54636a41701fd9d7083ba6e4a4e0b3 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 26 Jun 2024 18:18:39 +0200 Subject: Merging upstream version 1:4.15.2. Signed-off-by: Daniel Baumann --- lib/yesno.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 lib/yesno.c (limited to 'lib/yesno.c') diff --git a/lib/yesno.c b/lib/yesno.c new file mode 100644 index 0000000..029cd81 --- /dev/null +++ b/lib/yesno.c @@ -0,0 +1,87 @@ +/* + * SPDX-FileCopyrightText: 1992 - 1994, Julianne Frances Haugh + * SPDX-FileCopyrightText: 2007 - 2008, Nicolas François + * SPDX-FileCopyrightText: 2023, Alejandro Colomar + * + * SPDX-License-Identifier: BSD-3-Clause + */ + + +#include + +#ident "$Id$" + +#include +#include +#include +#include "prototypes.h" + + +/* + * Synopsis + * bool yes_or_no(bool read_only); + * + * Arguments + * read_only + * In read-only mode, all questions are answered "no". It + * will print "No" to stdout. + * + * Description + * After a yes/no question, this function gets the answer from the + * user. + * + * Calls to this function will normally be preceeded by a prompt on + * stdout, so we should fflush(3). + * + * Return value + * false "no" + * true "yes" + * + * See also + * rpmatch(3) + */ + + +#if !defined(HAVE_RPMATCH) +static int rpmatch(const char *response); +#endif + + +bool +yes_or_no(bool read_only) +{ + bool ret; + char *buf; + size_t size; + + if (read_only) { + puts(_("No")); + return false; + } + + fflush(stdout); + + buf = NULL; + ret = false; + size = 0; + if (getline(&buf, &size, stdin) != -1) + ret = rpmatch(buf) == 1; + + free(buf); + return ret; +} + + +#if !defined(HAVE_RPMATCH) +static int +rpmatch(const char *response) +{ + if (response[0] == 'y' || response[0] == 'Y') + return 1; + + if (response[0] == 'n' || response[0] == 'n') + return 0; + + return -1; +} +#endif -- cgit v1.2.3