freebsd-nq/usr.bin/ar/acplex.l
Ed Maste 38911b3c2c ar: provide error exit status upon failure
Previously ar and ranlib returned with exit status 0 (success) in the
case of a missing file or other error.  Update to use error handling
similar to that added by ELF Tool Chain after that project forked
FreeBSD's ar.

PR:		PR257599 [exp-run]
Reported by:	Shawn Webb, gehmehgeh (on HardenedBSD IRC)
Reviewed by:	markj
Obtained from:	elftoolchain
MFC after:	2 months
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D31402
2021-08-10 17:08:10 -04:00

84 lines
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%{
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2008 Kai Wang
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "y.tab.h"
int lineno = 1;
int yylex(void);
#define YY_DECL int yylex(void)
%}
%option nounput
%option noinput
%option noyywrap
%%
ADDLIB|addlib { return (ADDLIB); }
ADDMOD|addmod { return (ADDMOD); }
CLEAR|clear { return (CLEAR); }
CREATE|create { return (CREATE); }
DELETE|delete { return (DELETE); }
DIRECTORY|directory { return (DIRECTORY); }
END|end { return (END); }
EXTRACT|extract { return (EXTRACT); }
LIST|list { return (LIST); }
OPEN|open { return (OPEN); }
REPLACE|replace { return (REPLACE); }
VERBOSE|verbose { return (VERBOSE); }
SAVE|save { return (SAVE); }
"(" { return (LP); }
")" { return (RP); }
"," { return (COMMA); }
[-_A-Za-z0-9/:$.\\]+ {
yylval.str = strdup(yytext);
if (yylval.str == NULL)
errc(EXIT_FAILURE, errno, "strdup failed");
return (FNAME);
}
[ \t] /* whitespace */
"*".* /* comment */
";".* /* comment */
"+\n" { lineno++; /* '+' is line continuation char */ }
"\n" { lineno++; return (EOL); }