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/*
* Copyright (c) International Business Machines Corp., 2012
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* File: user.c
* Author: Shaun Wetzstein <shaun@us.ibm.com>
* Descr: --user implementation
* Date: 01/30/2013
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <getopt.h>
#include <errno.h>
#include <ctype.h>
#include <regex.h>
#include <clib/attribute.h>
#include <clib/assert.h>
#include <clib/list.h>
#include <clib/list_iter.h>
#include <clib/misc.h>
#include <clib/min.h>
#include <clib/err.h>
#include <clib/raii.h>
#include "main.h"
int command_user(args_t * args)
{
assert(args != NULL);
char name[strlen(args->name) + 2];
strcpy(name, args->name);
if (strrchr(name, '$') == NULL)
strcat(name, "$");
char full_name[page_size];
regex_t rx;
off_t __poffset;
ffs_t * __ffs;
uint32_t user = 0;
if (args->user != NULL)
if (parse_size(args->user, &user) < 0)
return -1;
if (FFS_USER_WORDS <= user) {
UNEXPECTED("invalid user word '%d', valid range [0..%d]",
user, FFS_USER_WORDS);
return -1;
}
int user_entry(ffs_entry_t * entry)
{
assert(entry != NULL);
if (__ffs_entry_name(__ffs, entry, full_name,
sizeof full_name) < 0)
return -1;
if (regexec(&rx, full_name, 0, NULL, 0) == REG_NOMATCH)
return 0;
if (entry->flags & FFS_FLAGS_PROTECTED &&
args->force != f_FORCE) {
printf("%llx: %s: protected, skipping user[%d]\n",
__poffset, full_name, user);
return 0;
}
uint32_t value = 0;
if (args->value != NULL) {
if (args->value != NULL)
if (parse_size(args->value, &value) < 0)
return -1;
if (__ffs_entry_user_put(__ffs, full_name,
user, value) < 0)
return -1;
if (args->verbose == f_VERBOSE)
printf("%llx: %s: user[%d] = '%x'\n", __poffset,
args->name, user, value);
} else {
if (__ffs_entry_user_get(__ffs, args->name,
user, &value) < 0)
return -1;
printf("%llx: %s: user[%d] = '%x'\n", __poffset,
args->name, user, value);
}
return 0;
}
int __user(args_t * args, off_t poffset)
{
__poffset = poffset;
const char * target = args->target;
int debug = args->debug;
RAII(FILE*, file, fopen_generic(target, "r+", debug), fclose);
if (file == NULL)
return -1;
RAII(ffs_t*, ffs, __ffs_fopen(file, poffset), __ffs_fclose);
if (ffs == NULL)
return -1;
__ffs = ffs;
int rc = __ffs_iterate_entries(ffs, user_entry);
if (rc == 1)
return -1;
return rc;
}
/* ========================= */
if (regcomp(&rx, name, REG_ICASE | REG_NOSUB) != 0) {
ERRNO(errno);
return-1;
}
int rc = command(args, __user);
regfree(&rx);
return rc;
}
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