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/*
* Copyright (c) International Business Machines Corp., 2000
*
* 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
*
* MODULE_NAME: logdump.c
*
* COMPONENT_NAME: jfs utilities
*
* FUNCTIONS:
* main
* parse_parms
*
* This *** SERVICE-ONLY *** tool dumps the contents of
* the journal log on the specified JFS partition into
* "./jfslog.dmp"
*
*/
#include "config.h"
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <pwd.h>
#include "jfs_types.h"
#include "devices.h"
#include "jfs_version.h"
#define LOGDMP_OK 0
#define LOGDMP_FAILED -1
#define FULLLOG -1
#define CURRLOG 1
int32_t jfs_logdump( char *, int32_t, int32_t );
int32_t parse_parms( int32_t, char ** );
/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
*
* Device information.
*
* values are assigned when (if) the device is opened.
*/
HFILE Dev_IOPort;
uint32_t Dev_blksize;
int32_t Dev_SectorSize;
char *Vol_Label = NULL;
int32_t dump_all = 0;
/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
*
* For message processing in called routines
*
*/
char message_parm_0[64];
char message_parm_1[64];
char message_parm_2[64];
char message_parm_3[64];
char message_parm_4[64];
char message_parm_5[64];
char message_parm_6[64];
char message_parm_7[64];
char message_parm_8[64];
char message_parm_9[64];
char *msgprms[10] = { message_parm_0, message_parm_1, message_parm_2,
message_parm_3, message_parm_4, message_parm_5,
message_parm_6, message_parm_7, message_parm_8,
message_parm_9 };
int16_t msgprmidx[10] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
char message_buffer_0[256];
char message_buffer_1[1024];
char message_buffer_2[1024];
char *terse_msg_ptr = &message_buffer_0[0];
char *verbose_msg_ptr = &message_buffer_1[0];
char *msgs_txt_ptr = &message_buffer_2[0];
unsigned long msgs_txt_maxlen = 1024;
extern char *MsgText[];
extern void fsck_send_msg( int, int, int ); /* defined in fsckmsg.c */
extern int alloc_wrksp( uint32_t, int, int, void ** ); /* defined in fsckwsp.c */
/****************************************************************************
*
* NAME: main
*
* FUNCTION: call jfs_logdmp()
*
* INTERFACE:
* logdump [-a] <block device>
*
* where -a => dump entire contents of log instead of just
* committed transactions since last synch point.
*
* NOTES:
*
* RETURNS:
* success: 0
* failure: something else
*/
int main(int argc, char **argv)
{
int rc = LOGDMP_OK;
int32_t sectorsize;
printf( "logdump version %s, %s\n",
VERSION, JFSUTILS_DATE);
rc = parse_parms( argc, argv ); /* parse the parms and record
* them in the aggregate wsp record
*/
if( rc == LOGDMP_OK ) { /* parms are good */
printf("Device Name: %s\n", Vol_Label);
rc = ujfs_open_device(Vol_Label, &Dev_IOPort, §orsize, READONLY);
if( rc == LOGDMP_OK ) {
rc = jfs_logdump( Vol_Label, Dev_IOPort, dump_all );
} else {
fprintf(stderr,"Error: Cannot open device %s, rc = %d.\n",
Vol_Label, rc);
return(-1);
}
/*
* Close the device
*/
rc = ujfs_close(Dev_IOPort);
} /* end parms are good */
return( rc );
} /* end of main() */
/* ======================================================================*/
/*****************************************************************************
* NAME: parse_parms
*
* FUNCTION: Parse the invocation parameters. If any unrecognized
* parameters are detected, or if any required parameter is
* omitted, issue a message and exit.
*
* PARAMETERS: as specified to main()
*
* NOTES:
*
* RETURNS:
* success: LOGDMP_OK
* failure: something else
*/
int32_t parse_parms ( int32_t argc, char **argv )
{
int32_t pp_rc = LOGDMP_OK;
int i = 0;
char *argp;
for (i = 1; i < argc; i++) { /* for all parms on command line */
argp = argv[i];
if (*argp == '-') { /* leading - */
argp++;
if (*argp == 'a' || *argp == 'A') { /* debug */
/*
* Dump entire log Option
*/
dump_all = -1;
} else {
/*
* unrecognized keyword parm
*/
printf( "LOGDUMP: unrecognized keyword detected: %s\n", argp );
return( LOGDMP_FAILED );
}
} else if (argp[0] == '/') { /* 2nd char is / */
Vol_Label = argp;
} else { /* unrecognized parm */
printf( "LOGDUMP: unsupported parameter detected: %s\n", argp );
return( LOGDMP_FAILED );
} /* end unrecognized parm */
} /* end for all parms on command line */
if (Vol_Label == NULL) { /* no device specified */
printf( "Error: no device given.\n");
printf( "Usage: logdump [-a] <block device>\n" );
return( LOGDMP_FAILED );
} /* end no device specified */
return( pp_rc );
} /* end of parse_parms() */
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