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/*
* Copyright (c) International Business Machines Corp., 2000-2002
*
* 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
*/
/*
* FUNCTION: dumps the contents of the journal log on the
* specified JFS partition into "./jfslog.dmp"
*/
#include <config.h>
#include <fcntl.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
int jfs_logdump(char *, FILE *, int);
int parse_parms(int, char **);
char log_device[1]; /* This avoids linker error */
/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
*
* Device information.
*
* values are assigned when (if) the device is opened.
*/
FILE *Dev_IOPort;
unsigned Dev_blksize;
char *Vol_Label = NULL;
int dump_all = 0;
/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
*
* For message processing in called routines
*
*/
extern caddr_t prog;
extern void fsck_send_msg(int, int); /* defined in fsckmsg.c */
extern int alloc_wrksp(unsigned, int, int, void **); /* defined in fsckwsp.c */
/****************************************************************************
*
* NAME: main
*
* FUNCTION: call jfs_logdump()
*
* INTERFACE:
* jfs_logdump [-a] <block device>
*
* where -a => dump entire contents of log instead of just
* committed transactions since last synch point.
*
* RETURNS:
* success: 0
* failure: something else
*/
int main(int argc, char **argv)
{
int rc = LOGDMP_OK;
printf("jfs_logdump version %s, %s\n", VERSION, JFSUTILS_DATE);
prog = "jfs_logdump";
rc = parse_parms(argc, argv); /* parse the parms and record
* them in the aggregate wsp record
*/
if (rc != 0)
return 0;
printf("Device Name: %s\n", Vol_Label);
Dev_IOPort = fopen(Vol_Label, "r");
if (Dev_IOPort == NULL) {
fprintf(stderr, "Error: Cannot open device %s, rc = %d.\n", Vol_Label, rc);
return (-1);
}
jfs_logdump(Vol_Label, Dev_IOPort, dump_all);
return fclose(Dev_IOPort);
}
/*****************************************************************************
* 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()
*
* RETURNS:
* success: LOGDMP_OK
* failure: something else
*/
int parse_parms(int argc, char **argv)
{
int 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("JFS_LOGDUMP: unrecognized keyword detected: %s\n", argp);
return (LOGDMP_FAILED);
}
} else if (argp[0] == '/') { /* 2nd char is / */
Vol_Label = argp;
} else { /* unrecognized parm */
printf("JFS_LOGDUMP: unsupported parameter detected: %s\n", argp);
return (LOGDMP_FAILED);
}
}
if (Vol_Label == NULL) { /* no device specified */
printf("Error: no device given.\n");
printf("Usage: jfs_logdump [-a] <block device>\n");
return (LOGDMP_FAILED);
}
return (pp_rc);
}
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