3fe401a500
ELF Tool Chain built on FreeBSD's ar and elfdump, but has a number of improvements and enhancements. Bring them into contrib in order to start integrating into our build.
659 lines
12 KiB
Plaintext
659 lines
12 KiB
Plaintext
%{
|
|
/*-
|
|
* 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
|
|
* in this position and unchanged.
|
|
* 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(S) ``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(S) 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/mman.h>
|
|
#include <sys/param.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <archive.h>
|
|
#include <archive_entry.h>
|
|
#include <dirent.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "libelftc.h"
|
|
|
|
#include "ar.h"
|
|
|
|
ELFTC_VCSID("$Id");
|
|
|
|
|
|
#define TEMPLATE "arscp.XXXXXXXX"
|
|
|
|
struct list {
|
|
char *str;
|
|
struct list *next;
|
|
};
|
|
|
|
|
|
extern int yylex(void);
|
|
extern int yyparse(void);
|
|
|
|
static void yyerror(const char *);
|
|
static void arscp_addlib(char *archive, struct list *list);
|
|
static void arscp_addmod(struct list *list);
|
|
static void arscp_clear(void);
|
|
static void arscp_create(char *in, char *out);
|
|
static void arscp_delete(struct list *list);
|
|
static void arscp_dir(char *archive, struct list *list, char *rlt);
|
|
static void arscp_end(int eval);
|
|
static void arscp_extract(struct list *list);
|
|
static void arscp_free_argv(void);
|
|
static void arscp_free_mlist(struct list *list);
|
|
static void arscp_list(void);
|
|
static struct list *arscp_mlist(struct list *list, char *str);
|
|
static void arscp_mlist2argv(struct list *list);
|
|
static int arscp_mlist_len(struct list *list);
|
|
static void arscp_open(char *fname);
|
|
static void arscp_prompt(void);
|
|
static void arscp_replace(struct list *list);
|
|
static void arscp_save(void);
|
|
static int arscp_target_exist(void);
|
|
|
|
extern int lineno;
|
|
|
|
static struct bsdar *bsdar;
|
|
static char *target;
|
|
static char *tmpac;
|
|
static int interactive;
|
|
static int verbose;
|
|
|
|
%}
|
|
|
|
%token ADDLIB
|
|
%token ADDMOD
|
|
%token CLEAR
|
|
%token CREATE
|
|
%token DELETE
|
|
%token DIRECTORY
|
|
%token END
|
|
%token EXTRACT
|
|
%token LIST
|
|
%token OPEN
|
|
%token REPLACE
|
|
%token VERBOSE
|
|
%token SAVE
|
|
%token LP
|
|
%token RP
|
|
%token COMMA
|
|
%token EOL
|
|
%token <str> FNAME
|
|
%type <list> mod_list
|
|
|
|
%union {
|
|
char *str;
|
|
struct list *list;
|
|
}
|
|
|
|
%%
|
|
|
|
begin
|
|
: { arscp_prompt(); } ar_script
|
|
;
|
|
|
|
ar_script
|
|
: cmd_list
|
|
|
|
|
;
|
|
|
|
mod_list
|
|
: FNAME { $$ = arscp_mlist(NULL, $1); }
|
|
| mod_list separator FNAME { $$ = arscp_mlist($1, $3); }
|
|
;
|
|
|
|
separator
|
|
: COMMA
|
|
|
|
|
;
|
|
|
|
cmd_list
|
|
: rawcmd
|
|
| cmd_list rawcmd
|
|
;
|
|
|
|
rawcmd
|
|
: cmd EOL { arscp_prompt(); }
|
|
;
|
|
|
|
cmd
|
|
: addlib_cmd
|
|
| addmod_cmd
|
|
| clear_cmd
|
|
| create_cmd
|
|
| delete_cmd
|
|
| directory_cmd
|
|
| end_cmd
|
|
| extract_cmd
|
|
| list_cmd
|
|
| open_cmd
|
|
| replace_cmd
|
|
| verbose_cmd
|
|
| save_cmd
|
|
| invalid_cmd
|
|
| empty_cmd
|
|
| error
|
|
;
|
|
|
|
addlib_cmd
|
|
: ADDLIB FNAME LP mod_list RP { arscp_addlib($2, $4); }
|
|
| ADDLIB FNAME { arscp_addlib($2, NULL); }
|
|
;
|
|
|
|
addmod_cmd
|
|
: ADDMOD mod_list { arscp_addmod($2); }
|
|
;
|
|
|
|
clear_cmd
|
|
: CLEAR { arscp_clear(); }
|
|
;
|
|
|
|
create_cmd
|
|
: CREATE FNAME { arscp_create(NULL, $2); }
|
|
;
|
|
|
|
delete_cmd
|
|
: DELETE mod_list { arscp_delete($2); }
|
|
;
|
|
|
|
directory_cmd
|
|
: DIRECTORY FNAME { arscp_dir($2, NULL, NULL); }
|
|
| DIRECTORY FNAME LP mod_list RP { arscp_dir($2, $4, NULL); }
|
|
| DIRECTORY FNAME LP mod_list RP FNAME { arscp_dir($2, $4, $6); }
|
|
;
|
|
|
|
end_cmd
|
|
: END { arscp_end(EXIT_SUCCESS); }
|
|
;
|
|
|
|
extract_cmd
|
|
: EXTRACT mod_list { arscp_extract($2); }
|
|
;
|
|
|
|
list_cmd
|
|
: LIST { arscp_list(); }
|
|
;
|
|
|
|
open_cmd
|
|
: OPEN FNAME { arscp_open($2); }
|
|
;
|
|
|
|
replace_cmd
|
|
: REPLACE mod_list { arscp_replace($2); }
|
|
;
|
|
|
|
save_cmd
|
|
: SAVE { arscp_save(); }
|
|
;
|
|
|
|
verbose_cmd
|
|
: VERBOSE { verbose = !verbose; }
|
|
;
|
|
|
|
empty_cmd
|
|
:
|
|
;
|
|
|
|
invalid_cmd
|
|
: FNAME { yyerror(NULL); }
|
|
;
|
|
|
|
%%
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
yyerror(const char *s)
|
|
{
|
|
|
|
(void) s;
|
|
printf("Syntax error in archive script, line %d\n", lineno);
|
|
}
|
|
|
|
/*
|
|
* The arscp_open() function will first open an archive and check its
|
|
* validity. If the archive format is valid, it will call
|
|
* arscp_create() to create a temporary copy of the archive.
|
|
*/
|
|
static void
|
|
arscp_open(char *fname)
|
|
{
|
|
struct archive *a;
|
|
struct archive_entry *entry;
|
|
int r;
|
|
|
|
if ((a = archive_read_new()) == NULL)
|
|
bsdar_errc(bsdar, 0, "archive_read_new failed");
|
|
archive_read_support_format_ar(a);
|
|
AC(archive_read_open_filename(a, fname, DEF_BLKSZ));
|
|
if ((r = archive_read_next_header(a, &entry)))
|
|
bsdar_warnc(bsdar, 0, "%s", archive_error_string(a));
|
|
AC(archive_read_close(a));
|
|
ACV(archive_read_free(a));
|
|
if (r != ARCHIVE_OK)
|
|
return;
|
|
arscp_create(fname, fname);
|
|
}
|
|
|
|
/*
|
|
* Create an archive.
|
|
*
|
|
* If the parameter 'in' is NULL (the 'CREATE' command), a new empty
|
|
* archive will be created. If the parameter 'in' is not NULL (the
|
|
* 'OPEN' command), the resulting archive will be a modified version
|
|
* of the existing archive.
|
|
*/
|
|
static void
|
|
arscp_create(char *in, char *out)
|
|
{
|
|
struct archive *a;
|
|
int ifd, ofd;
|
|
|
|
/* Delete the previously created temporary archive, if any. */
|
|
if (tmpac) {
|
|
if (unlink(tmpac) < 0)
|
|
bsdar_errc(bsdar, errno, "unlink failed");
|
|
free(tmpac);
|
|
}
|
|
|
|
tmpac = strdup(TEMPLATE);
|
|
if (tmpac == NULL)
|
|
bsdar_errc(bsdar, errno, "strdup failed");
|
|
if ((ofd = mkstemp(tmpac)) < 0)
|
|
bsdar_errc(bsdar, errno, "mkstemp failed");
|
|
|
|
if (in) {
|
|
/*
|
|
* The 'OPEN' command creates a temporary copy of the
|
|
* input archive.
|
|
*/
|
|
if ((ifd = open(in, O_RDONLY)) < 0 ||
|
|
elftc_copyfile(ifd, ofd) < 0) {
|
|
bsdar_warnc(bsdar, errno, "'OPEN' failed");
|
|
(void) close(ofd);
|
|
if (ifd != -1)
|
|
(void) close(ifd);
|
|
return;
|
|
}
|
|
(void) close(ifd);
|
|
(void) close(ofd);
|
|
} else {
|
|
/*
|
|
* The 'CREATE' command creates an "empty" archive (an
|
|
* archive consisting only of the archive header).
|
|
*/
|
|
if ((a = archive_write_new()) == NULL)
|
|
bsdar_errc(bsdar, 0, "archive_write_new failed");
|
|
archive_write_set_format_ar_svr4(a);
|
|
AC(archive_write_open_fd(a, ofd));
|
|
AC(archive_write_close(a));
|
|
ACV(archive_write_free(a));
|
|
}
|
|
|
|
/* Override the previous target, if any. */
|
|
if (target)
|
|
free(target);
|
|
|
|
target = out;
|
|
bsdar->filename = tmpac;
|
|
}
|
|
|
|
/*
|
|
* Add all modules of an archive to the current archive. If the
|
|
* parameter 'list' is not NULL, only those modules specified by
|
|
* 'list' will be added.
|
|
*/
|
|
static void
|
|
arscp_addlib(char *archive, struct list *list)
|
|
{
|
|
|
|
if (!arscp_target_exist())
|
|
return;
|
|
arscp_mlist2argv(list);
|
|
bsdar->addlib = archive;
|
|
ar_write_archive(bsdar, 'A');
|
|
arscp_free_argv();
|
|
arscp_free_mlist(list);
|
|
}
|
|
|
|
/*
|
|
* Add modules to the current archive.
|
|
*/
|
|
static void
|
|
arscp_addmod(struct list *list)
|
|
{
|
|
|
|
if (!arscp_target_exist())
|
|
return;
|
|
arscp_mlist2argv(list);
|
|
ar_write_archive(bsdar, 'q');
|
|
arscp_free_argv();
|
|
arscp_free_mlist(list);
|
|
}
|
|
|
|
/*
|
|
* Delete modules from the current archive.
|
|
*/
|
|
static void
|
|
arscp_delete(struct list *list)
|
|
{
|
|
|
|
if (!arscp_target_exist())
|
|
return;
|
|
arscp_mlist2argv(list);
|
|
ar_write_archive(bsdar, 'd');
|
|
arscp_free_argv();
|
|
arscp_free_mlist(list);
|
|
}
|
|
|
|
/*
|
|
* Extract modules from the current archive.
|
|
*/
|
|
static void
|
|
arscp_extract(struct list *list)
|
|
{
|
|
|
|
if (!arscp_target_exist())
|
|
return;
|
|
arscp_mlist2argv(list);
|
|
ar_read_archive(bsdar, 'x');
|
|
arscp_free_argv();
|
|
arscp_free_mlist(list);
|
|
}
|
|
|
|
/*
|
|
* List the contents of an archive (simple mode).
|
|
*/
|
|
static void
|
|
arscp_list(void)
|
|
{
|
|
|
|
if (!arscp_target_exist())
|
|
return;
|
|
bsdar->argc = 0;
|
|
bsdar->argv = NULL;
|
|
/* Always verbose. */
|
|
bsdar->options |= AR_V;
|
|
ar_read_archive(bsdar, 't');
|
|
bsdar->options &= ~AR_V;
|
|
}
|
|
|
|
/*
|
|
* List the contents of an archive (advanced mode).
|
|
*/
|
|
static void
|
|
arscp_dir(char *archive, struct list *list, char *rlt)
|
|
{
|
|
FILE *out;
|
|
|
|
/* If rlt != NULL, redirect the output to it. */
|
|
out = NULL;
|
|
if (rlt) {
|
|
out = bsdar->output;
|
|
if ((bsdar->output = fopen(rlt, "w")) == NULL)
|
|
bsdar_errc(bsdar, 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_read_archive(bsdar, 't');
|
|
bsdar->options &= ~AR_V;
|
|
|
|
if (rlt) {
|
|
if (fclose(bsdar->output) == EOF)
|
|
bsdar_errc(bsdar, errno, "fclose %s failed", rlt);
|
|
bsdar->output = out;
|
|
free(rlt);
|
|
}
|
|
free(archive);
|
|
bsdar->filename = tmpac;
|
|
arscp_free_argv();
|
|
arscp_free_mlist(list);
|
|
}
|
|
|
|
|
|
/*
|
|
* Replace modules in the current archive.
|
|
*/
|
|
static void
|
|
arscp_replace(struct list *list)
|
|
{
|
|
|
|
if (!arscp_target_exist())
|
|
return;
|
|
arscp_mlist2argv(list);
|
|
ar_write_archive(bsdar, 'r');
|
|
arscp_free_argv();
|
|
arscp_free_mlist(list);
|
|
}
|
|
|
|
/*
|
|
* Rename the temporary archive to the target archive.
|
|
*/
|
|
static void
|
|
arscp_save(void)
|
|
{
|
|
mode_t mask;
|
|
|
|
if (target) {
|
|
if (rename(tmpac, target) < 0)
|
|
bsdar_errc(bsdar, errno, "rename failed");
|
|
/*
|
|
* Because mkstemp() creates temporary files with mode
|
|
* 0600, we set target archive's mode as per the
|
|
* process umask.
|
|
*/
|
|
mask = umask(0);
|
|
umask(mask);
|
|
if (chmod(target, 0666 & ~mask) < 0)
|
|
bsdar_errc(bsdar, errno, "chmod failed");
|
|
free(tmpac);
|
|
free(target);
|
|
tmpac = NULL;
|
|
target= NULL;
|
|
bsdar->filename = NULL;
|
|
} else
|
|
bsdar_warnc(bsdar, 0, "no open output archive");
|
|
}
|
|
|
|
/*
|
|
* Discard the contents of the current archive. This is achieved by
|
|
* invoking the 'CREATE' cmd on the current archive.
|
|
*/
|
|
static void
|
|
arscp_clear(void)
|
|
{
|
|
char *new_target;
|
|
|
|
if (target) {
|
|
new_target = strdup(target);
|
|
if (new_target == NULL)
|
|
bsdar_errc(bsdar, errno, "strdup failed");
|
|
arscp_create(NULL, new_target);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Quit ar(1). Note that the 'END' cmd will not 'SAVE' the current
|
|
* archive before exiting.
|
|
*/
|
|
static void
|
|
arscp_end(int eval)
|
|
{
|
|
|
|
if (target)
|
|
free(target);
|
|
if (tmpac) {
|
|
if (unlink(tmpac) == -1)
|
|
bsdar_errc(bsdar, errno, "unlink %s failed", tmpac);
|
|
free(tmpac);
|
|
}
|
|
|
|
exit(eval);
|
|
}
|
|
|
|
/*
|
|
* Check if a target was specified, i.e, whether an 'OPEN' or 'CREATE'
|
|
* had been issued by the user.
|
|
*/
|
|
static int
|
|
arscp_target_exist(void)
|
|
{
|
|
|
|
if (target)
|
|
return (1);
|
|
|
|
bsdar_warnc(bsdar, 0, "no open output archive");
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Construct the list of modules.
|
|
*/
|
|
static struct list *
|
|
arscp_mlist(struct list *list, char *str)
|
|
{
|
|
struct list *l;
|
|
|
|
l = malloc(sizeof(*l));
|
|
if (l == NULL)
|
|
bsdar_errc(bsdar, errno, "malloc failed");
|
|
l->str = str;
|
|
l->next = list;
|
|
|
|
return (l);
|
|
}
|
|
|
|
/*
|
|
* Calculate the length of an 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 a module list.
|
|
*/
|
|
static void
|
|
arscp_free_mlist(struct list *list)
|
|
{
|
|
struct list *l;
|
|
|
|
/* Note: list->str was freed in arscp_free_argv(). */
|
|
for(; list; list = l) {
|
|
l = list->next;
|
|
free(list);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Convert a module list to an '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, errno, "malloc failed");
|
|
|
|
/* Note that module names are stored in reverse order. */
|
|
for(i = n - 1; i >= 0; i--, list = list->next) {
|
|
if (list == NULL)
|
|
bsdar_errc(bsdar, errno, "invalid mlist");
|
|
argv[i] = list->str;
|
|
}
|
|
|
|
bsdar->argc = n;
|
|
bsdar->argv = argv;
|
|
}
|
|
|
|
/*
|
|
* Free the space allocated for an argv array and its elements.
|
|
*/
|
|
static void
|
|
arscp_free_argv(void)
|
|
{
|
|
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
|
|
arscp_prompt(void)
|
|
{
|
|
|
|
if (interactive) {
|
|
printf("AR >");
|
|
fflush(stdout);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The main function implementing script mode.
|
|
*/
|
|
void
|
|
ar_mode_script(struct bsdar *ar)
|
|
{
|
|
|
|
bsdar = ar;
|
|
interactive = isatty(fileno(stdin));
|
|
while(yyparse()) {
|
|
if (!interactive)
|
|
arscp_end(EXIT_FAILURE);
|
|
}
|
|
|
|
/* Script ends without END */
|
|
arscp_end(EXIT_SUCCESS);
|
|
}
|