2008-09-20 22:10:10 +00:00
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%{
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/*-
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2017-11-27 15:37:16 +00:00
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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2008-09-20 22:10:10 +00:00
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* Copyright (c) 2008 Kai Wang
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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2018-06-19 17:28:05 +00:00
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* notice, this list of conditions and the following disclaimer.
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2008-09-20 22:10:10 +00:00
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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2018-06-19 17:28:05 +00:00
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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2008-09-20 22:10:10 +00:00
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/mman.h>
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/stat.h>
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#include <archive.h>
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#include <archive_entry.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include "ar.h"
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#define TEMPLATE "arscp.XXXXXXXX"
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struct list {
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char *str;
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struct list *next;
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};
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extern int yylex(void);
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static void yyerror(const char *);
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static void arscp_addlib(char *archive, struct list *list);
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static void arscp_addmod(struct list *list);
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static void arscp_clear(void);
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static int arscp_copy(int ifd, int ofd);
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static void arscp_create(char *in, char *out);
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static void arscp_delete(struct list *list);
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static void arscp_dir(char *archive, struct list *list, char *rlt);
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static void arscp_end(int eval);
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static void arscp_extract(struct list *list);
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static void arscp_free_argv(void);
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static void arscp_free_mlist(struct list *list);
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static void arscp_list(void);
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static struct list *arscp_mlist(struct list *list, char *str);
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static void arscp_mlist2argv(struct list *list);
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static int arscp_mlist_len(struct list *list);
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static void arscp_open(char *fname);
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static void arscp_prompt(void);
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static void arscp_replace(struct list *list);
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static void arscp_save(void);
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static int arscp_target_exist(void);
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extern int lineno;
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static struct bsdar *bsdar;
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static char *target;
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static char *tmpac;
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static int interactive;
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static int verbose;
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%}
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%token ADDLIB
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%token ADDMOD
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%token CLEAR
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%token CREATE
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%token DELETE
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%token DIRECTORY
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%token END
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%token EXTRACT
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%token LIST
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%token OPEN
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%token REPLACE
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%token VERBOSE
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%token SAVE
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%token LP
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%token RP
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%token COMMA
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%token EOL
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%token <str> FNAME
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%type <list> mod_list
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%union {
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char *str;
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struct list *list;
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}
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%%
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begin
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: { arscp_prompt(); } ar_script
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;
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ar_script
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: cmd_list
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;
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mod_list
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: FNAME { $$ = arscp_mlist(NULL, $1); }
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| mod_list separator FNAME { $$ = arscp_mlist($1, $3); }
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;
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separator
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: COMMA
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;
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cmd_list
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: rawcmd
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| cmd_list rawcmd
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;
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rawcmd
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: cmd EOL { arscp_prompt(); }
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;
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cmd
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: addlib_cmd
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| addmod_cmd
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| clear_cmd
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| create_cmd
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| delete_cmd
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| directory_cmd
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| end_cmd
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| extract_cmd
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| list_cmd
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| open_cmd
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| replace_cmd
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| verbose_cmd
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| save_cmd
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| invalid_cmd
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| empty_cmd
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| error
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;
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addlib_cmd
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: ADDLIB FNAME LP mod_list RP { arscp_addlib($2, $4); }
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| ADDLIB FNAME { arscp_addlib($2, NULL); }
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;
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addmod_cmd
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: ADDMOD mod_list { arscp_addmod($2); }
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;
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clear_cmd
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: CLEAR { arscp_clear(); }
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;
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create_cmd
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: CREATE FNAME { arscp_create(NULL, $2); }
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;
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delete_cmd
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: DELETE mod_list { arscp_delete($2); }
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;
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directory_cmd
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: DIRECTORY FNAME { arscp_dir($2, NULL, NULL); }
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| DIRECTORY FNAME LP mod_list RP { arscp_dir($2, $4, NULL); }
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| DIRECTORY FNAME LP mod_list RP FNAME { arscp_dir($2, $4, $6); }
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;
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end_cmd
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: END { arscp_end(EX_OK); }
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;
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extract_cmd
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: EXTRACT mod_list { arscp_extract($2); }
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;
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list_cmd
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: LIST { arscp_list(); }
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;
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open_cmd
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: OPEN FNAME { arscp_open($2); }
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;
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replace_cmd
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: REPLACE mod_list { arscp_replace($2); }
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;
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save_cmd
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: SAVE { arscp_save(); }
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;
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verbose_cmd
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: VERBOSE { verbose = !verbose; }
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;
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empty_cmd
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:
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;
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invalid_cmd
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: FNAME { yyerror(NULL); }
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;
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%%
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/* ARGSUSED */
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static void
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yyerror(const char *s)
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{
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(void) s;
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printf("Syntax error in archive script, line %d\n", lineno);
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}
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/*
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* arscp_open first open an archive and check its validity. If the archive
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* format is valid, it calls arscp_create to create a temporary copy of
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* the archive.
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*/
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static void
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arscp_open(char *fname)
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{
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struct archive *a;
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struct archive_entry *entry;
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int r;
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if ((a = archive_read_new()) == NULL)
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bsdar_errc(bsdar, EX_SOFTWARE, 0, "archive_read_new failed");
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2009-12-29 05:58:40 +00:00
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archive_read_support_format_ar(a);
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2013-03-22 10:17:42 +00:00
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AC(archive_read_open_filename(a, fname, DEF_BLKSZ));
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2008-09-20 22:10:10 +00:00
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if ((r = archive_read_next_header(a, &entry)))
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bsdar_warnc(bsdar, 0, "%s", archive_error_string(a));
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AC(archive_read_close(a));
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2013-03-22 10:17:42 +00:00
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AC(archive_read_free(a));
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2008-09-20 22:10:10 +00:00
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if (r != ARCHIVE_OK)
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return;
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arscp_create(fname, fname);
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}
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/*
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* Create archive. in != NULL indicate it's a OPEN cmd, and resulting
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* archive is based on modification of an existing one. If in == NULL,
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* we are in CREATE cmd and a new empty archive will be created.
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*/
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static void
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arscp_create(char *in, char *out)
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{
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struct archive *a;
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int ifd, ofd;
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/* Delete previously created temporary archive, if any. */
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if (tmpac) {
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if (unlink(tmpac) < 0)
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bsdar_errc(bsdar, EX_IOERR, errno, "unlink failed");
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free(tmpac);
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}
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tmpac = strdup(TEMPLATE);
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if (tmpac == NULL)
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bsdar_errc(bsdar, EX_SOFTWARE, errno, "strdup failed");
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if ((ofd = mkstemp(tmpac)) < 0)
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bsdar_errc(bsdar, EX_IOERR, errno, "mkstemp failed");
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if (in) {
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/*
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* Command OPEN creates a temporary copy of the
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* input archive.
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*/
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if ((ifd = open(in, O_RDONLY)) < 0) {
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bsdar_warnc(bsdar, errno, "open failed");
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return;
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}
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if (arscp_copy(ifd, ofd)) {
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bsdar_warnc(bsdar, 0, "arscp_copy failed");
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return;
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}
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close(ifd);
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close(ofd);
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} else {
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/*
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* Command CREATE creates an "empty" archive.
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* (archive with only global header)
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*/
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if ((a = archive_write_new()) == NULL)
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bsdar_errc(bsdar, EX_SOFTWARE, 0,
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"archive_write_new failed");
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archive_write_set_format_ar_svr4(a);
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AC(archive_write_open_fd(a, ofd));
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AC(archive_write_close(a));
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2013-03-22 10:17:42 +00:00
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AC(archive_write_free(a));
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2008-09-20 22:10:10 +00:00
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}
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/* Override previous target, if any. */
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if (target)
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free(target);
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target = out;
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bsdar->filename = tmpac;
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}
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/* A file copying implementation using mmap. */
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static int
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arscp_copy(int ifd, int ofd)
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{
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struct stat sb;
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char *buf, *p;
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ssize_t w;
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size_t bytes;
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if (fstat(ifd, &sb) < 0) {
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bsdar_warnc(bsdar, errno, "fstate failed");
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return (1);
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}
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if ((p = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, ifd,
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(off_t)0)) == MAP_FAILED) {
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bsdar_warnc(bsdar, errno, "mmap failed");
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return (1);
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}
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for (buf = p, bytes = sb.st_size; bytes > 0; bytes -= w) {
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w = write(ofd, buf, bytes);
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if (w <= 0) {
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bsdar_warnc(bsdar, errno, "write failed");
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break;
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}
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}
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if (munmap(p, sb.st_size) < 0)
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bsdar_errc(bsdar, EX_SOFTWARE, errno, "munmap failed");
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if (bytes > 0)
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return (1);
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return (0);
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}
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/*
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* Add all modules of archive to current archive, if list != NULL,
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2011-05-20 11:29:09 +00:00
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* only those modules specified in 'list' will be added.
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2008-09-20 22:10:10 +00:00
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*/
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static void
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arscp_addlib(char *archive, struct list *list)
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{
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if (!arscp_target_exist())
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return;
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arscp_mlist2argv(list);
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bsdar->addlib = archive;
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ar_mode_A(bsdar);
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arscp_free_argv();
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arscp_free_mlist(list);
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}
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/* Add modules into current archive. */
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static void
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arscp_addmod(struct list *list)
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{
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if (!arscp_target_exist())
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return;
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arscp_mlist2argv(list);
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ar_mode_q(bsdar);
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arscp_free_argv();
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arscp_free_mlist(list);
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}
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/* Delete modules from current archive. */
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static void
|
|
|
|
arscp_delete(struct list *list)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (!arscp_target_exist())
|
|
|
|
return;
|
|
|
|
arscp_mlist2argv(list);
|
|
|
|
ar_mode_d(bsdar);
|
|
|
|
arscp_free_argv();
|
|
|
|
arscp_free_mlist(list);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Extract modules from current archive. */
|
|
|
|
static void
|
|
|
|
arscp_extract(struct list *list)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (!arscp_target_exist())
|
|
|
|
return;
|
|
|
|
arscp_mlist2argv(list);
|
|
|
|
ar_mode_x(bsdar);
|
|
|
|
arscp_free_argv();
|
|
|
|
arscp_free_mlist(list);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* List modules of archive. (Simple Mode) */
|
|
|
|
static void
|
2010-01-02 10:09:20 +00:00
|
|
|
arscp_list(void)
|
2008-09-20 22:10:10 +00:00
|
|
|
{
|
|
|
|
|
|
|
|
if (!arscp_target_exist())
|
|
|
|
return;
|
|
|
|
bsdar->argc = 0;
|
|
|
|
bsdar->argv = NULL;
|
|
|
|
/* Always verbose. */
|
|
|
|
bsdar->options |= AR_V;
|
|
|
|
ar_mode_t(bsdar);
|
|
|
|
bsdar->options &= ~AR_V;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* List modules of archive. (Advance Mode) */
|
|
|
|
static void
|
|
|
|
arscp_dir(char *archive, struct list *list, char *rlt)
|
|
|
|
{
|
|
|
|
FILE *out;
|
|
|
|
|
|
|
|
/* If rlt != NULL, redirect output to it */
|
|
|
|
out = NULL;
|
|
|
|
if (rlt) {
|
|
|
|
out = stdout;
|
|
|
|
if ((stdout = fopen(rlt, "w")) == NULL)
|
|
|
|
bsdar_errc(bsdar, EX_IOERR, errno,
|
|
|
|
"fopen %s failed", rlt);
|
|
|
|
}
|
|
|
|
|
|
|
|
bsdar->filename = archive;
|
|
|
|
if (list)
|
|
|
|
arscp_mlist2argv(list);
|
|
|
|
else {
|
|
|
|
bsdar->argc = 0;
|
|
|
|
bsdar->argv = NULL;
|
|
|
|
}
|
|
|
|
if (verbose)
|
|
|
|
bsdar->options |= AR_V;
|
|
|
|
ar_mode_t(bsdar);
|
|
|
|
bsdar->options &= ~AR_V;
|
|
|
|
|
|
|
|
if (rlt) {
|
|
|
|
if (fclose(stdout) == EOF)
|
|
|
|
bsdar_errc(bsdar, EX_IOERR, errno,
|
|
|
|
"fclose %s failed", rlt);
|
|
|
|
stdout = out;
|
|
|
|
free(rlt);
|
|
|
|
}
|
|
|
|
free(archive);
|
|
|
|
bsdar->filename = tmpac;
|
|
|
|
arscp_free_argv();
|
|
|
|
arscp_free_mlist(list);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Replace modules of current archive. */
|
|
|
|
static void
|
|
|
|
arscp_replace(struct list *list)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (!arscp_target_exist())
|
|
|
|
return;
|
|
|
|
arscp_mlist2argv(list);
|
|
|
|
ar_mode_r(bsdar);
|
|
|
|
arscp_free_argv();
|
|
|
|
arscp_free_mlist(list);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Rename the temporary archive to the target archive. */
|
|
|
|
static void
|
2010-01-02 10:09:20 +00:00
|
|
|
arscp_save(void)
|
2008-09-20 22:10:10 +00:00
|
|
|
{
|
|
|
|
mode_t mask;
|
|
|
|
|
|
|
|
if (target) {
|
|
|
|
if (rename(tmpac, target) < 0)
|
|
|
|
bsdar_errc(bsdar, EX_IOERR, errno, "rename failed");
|
|
|
|
/*
|
|
|
|
* mkstemp creates temp files with mode 0600, here we
|
|
|
|
* set target archive mode per process umask.
|
|
|
|
*/
|
|
|
|
mask = umask(0);
|
|
|
|
umask(mask);
|
|
|
|
if (chmod(target, 0666 & ~mask) < 0)
|
|
|
|
bsdar_errc(bsdar, EX_IOERR, errno, "chmod failed");
|
|
|
|
free(tmpac);
|
|
|
|
free(target);
|
|
|
|
tmpac = NULL;
|
|
|
|
target= NULL;
|
|
|
|
bsdar->filename = NULL;
|
|
|
|
} else
|
|
|
|
bsdar_warnc(bsdar, 0, "no open output archive");
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Discard all the contents of current archive. This is achieved by
|
|
|
|
* invoking CREATE cmd on current archive.
|
|
|
|
*/
|
|
|
|
static void
|
2010-01-02 10:09:20 +00:00
|
|
|
arscp_clear(void)
|
2008-09-20 22:10:10 +00:00
|
|
|
{
|
|
|
|
char *new_target;
|
|
|
|
|
|
|
|
if (target) {
|
|
|
|
new_target = strdup(target);
|
|
|
|
if (new_target == NULL)
|
|
|
|
bsdar_errc(bsdar, EX_SOFTWARE, errno, "strdup failed");
|
|
|
|
arscp_create(NULL, new_target);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Quit ar(1). Note that END cmd will not SAVE current archive
|
|
|
|
* before exit.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
arscp_end(int eval)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (target)
|
|
|
|
free(target);
|
|
|
|
if (tmpac) {
|
|
|
|
if (unlink(tmpac) == -1)
|
|
|
|
bsdar_errc(bsdar, EX_IOERR, errno, "unlink %s failed",
|
|
|
|
tmpac);
|
|
|
|
free(tmpac);
|
|
|
|
}
|
|
|
|
|
|
|
|
exit(eval);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2011-05-20 11:29:09 +00:00
|
|
|
* Check if target specified, i.e, whether OPEN or CREATE has been
|
2008-09-20 22:10:10 +00:00
|
|
|
* issued by user.
|
|
|
|
*/
|
|
|
|
static int
|
2010-01-02 10:09:20 +00:00
|
|
|
arscp_target_exist(void)
|
2008-09-20 22:10:10 +00:00
|
|
|
{
|
|
|
|
|
|
|
|
if (target)
|
|
|
|
return (1);
|
|
|
|
|
|
|
|
bsdar_warnc(bsdar, 0, "no open output archive");
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Construct module list. */
|
|
|
|
static struct list *
|
|
|
|
arscp_mlist(struct list *list, char *str)
|
|
|
|
{
|
|
|
|
struct list *l;
|
|
|
|
|
|
|
|
l = malloc(sizeof(*l));
|
|
|
|
if (l == NULL)
|
|
|
|
bsdar_errc(bsdar, EX_SOFTWARE, errno, "malloc failed");
|
|
|
|
l->str = str;
|
|
|
|
l->next = list;
|
|
|
|
|
|
|
|
return (l);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Calculate the length of a mlist. */
|
|
|
|
static int
|
|
|
|
arscp_mlist_len(struct list *list)
|
|
|
|
{
|
|
|
|
int len;
|
|
|
|
|
|
|
|
for(len = 0; list; list = list->next)
|
|
|
|
len++;
|
|
|
|
|
|
|
|
return (len);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Free the space allocated for mod_list. */
|
|
|
|
static void
|
|
|
|
arscp_free_mlist(struct list *list)
|
|
|
|
{
|
|
|
|
struct list *l;
|
|
|
|
|
|
|
|
/* Note that list->str was freed in arscp_free_argv. */
|
|
|
|
for(; list; list = l) {
|
|
|
|
l = list->next;
|
|
|
|
free(list);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Convert mlist to argv array. */
|
|
|
|
static void
|
|
|
|
arscp_mlist2argv(struct list *list)
|
|
|
|
{
|
|
|
|
char **argv;
|
|
|
|
int i, n;
|
|
|
|
|
|
|
|
n = arscp_mlist_len(list);
|
|
|
|
argv = malloc(n * sizeof(*argv));
|
|
|
|
if (argv == NULL)
|
|
|
|
bsdar_errc(bsdar, EX_SOFTWARE, errno, "malloc failed");
|
|
|
|
|
|
|
|
/* Note that module names are stored in reverse order in mlist. */
|
|
|
|
for(i = n - 1; i >= 0; i--, list = list->next) {
|
|
|
|
if (list == NULL)
|
|
|
|
bsdar_errc(bsdar, EX_SOFTWARE, errno, "invalid mlist");
|
|
|
|
argv[i] = list->str;
|
|
|
|
}
|
|
|
|
|
|
|
|
bsdar->argc = n;
|
|
|
|
bsdar->argv = argv;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Free space allocated for argv array and its elements. */
|
|
|
|
static void
|
2010-01-02 10:09:20 +00:00
|
|
|
arscp_free_argv(void)
|
2008-09-20 22:10:10 +00:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for(i = 0; i < bsdar->argc; i++)
|
|
|
|
free(bsdar->argv[i]);
|
|
|
|
|
|
|
|
free(bsdar->argv);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Show a prompt if we are in interactive mode */
|
|
|
|
static void
|
2010-01-02 10:09:20 +00:00
|
|
|
arscp_prompt(void)
|
2008-09-20 22:10:10 +00:00
|
|
|
{
|
|
|
|
|
|
|
|
if (interactive) {
|
|
|
|
printf("AR >");
|
|
|
|
fflush(stdout);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Main function for ar script mode. */
|
|
|
|
void
|
|
|
|
ar_mode_script(struct bsdar *ar)
|
|
|
|
{
|
|
|
|
|
|
|
|
bsdar = ar;
|
|
|
|
interactive = isatty(fileno(stdin));
|
|
|
|
while(yyparse()) {
|
|
|
|
if (!interactive)
|
|
|
|
arscp_end(1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Script ends without END */
|
|
|
|
arscp_end(EX_OK);
|
|
|
|
}
|