0c83b98105
Do not stop after 79 characters. Read the complete line to avoid arbitrary limitations. Proof of Concept: ``` cat > passwd-poc << EOF root:x:0:0:root:/root:/bin/bash root:x:0:0:root:/root:/bin/bash root:x:0:0:root:/root:/bin/bash EOF python -c "print(80*'y')" | pwck passwd-poc ``` Two lines should still be within the file because we agreed only once to remove a duplicated line. Signed-off-by: Samanta Navarro <ferivoz@riseup.net> Reviewed-by: Alejandro Colomar <alx@kernel.org> Reviewed-by: Serge Hallyn <serge@hallyn.com>
60 lines
993 B
C
60 lines
993 B
C
/*
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* SPDX-FileCopyrightText: 1992 - 1994, Julianne Frances Haugh
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* SPDX-FileCopyrightText: 2007 - 2008, Nicolas François
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/*
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* Common code for yes/no prompting
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*
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* Used by pwck.c and grpck.c
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*/
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#include <config.h>
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#ident "$Id$"
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#include <stdio.h>
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#include "prototypes.h"
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/*
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* yes_or_no - get answer to question from the user
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*
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* It returns false if no.
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*
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* If the read_only flag is set, it will print No, and will return
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* false.
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*/
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bool yes_or_no (bool read_only)
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{
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int c;
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bool result;
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/*
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* In read-only mode all questions are answered "no".
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*/
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if (read_only) {
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(void) puts (_("No"));
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return false;
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}
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/*
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* Typically, there's a prompt on stdout, sometimes unflushed.
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*/
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(void) fflush (stdout);
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/*
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* Get a line and see what the first character is.
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*/
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c = fgetc(stdin);
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/* TODO: use gettext */
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result = (c == 'y' || c == 'Y');
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while (c != '\n' && c != EOF)
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c = fgetc(stdin);
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return result;
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}
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