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Systemd/tdb/tdbtool.c

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/*
Unix SMB/CIFS implementation.
Samba database functions
Copyright (C) Andrew Tridgell 1999-2000
Copyright (C) Paul `Rusty' Russell 2000
Copyright (C) Jeremy Allison 2000
Copyright (C) Andrew Esh 2001
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <time.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <ctype.h>
#include <signal.h>
#include "tdb.h"
/* a tdb tool for manipulating a tdb database */
#define FSTRING_LEN 256
typedef char fstring[FSTRING_LEN];
typedef struct connections_key {
pid_t pid;
int cnum;
fstring name;
} connections_key;
typedef struct connections_data {
int magic;
pid_t pid;
int cnum;
uid_t uid;
gid_t gid;
char name[24];
char addr[24];
char machine[128];
time_t start;
} connections_data;
static TDB_CONTEXT *tdb;
static int print_rec(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state);
static void print_asc(unsigned char *buf,int len)
{
int i;
/* We're probably printing ASCII strings so don't try to display
the trailing NULL character. */
if (buf[len - 1] == 0)
len--;
for (i=0;i<len;i++)
printf("%c",isprint(buf[i])?buf[i]:'.');
}
static void print_data(unsigned char *buf,int len)
{
int i=0;
if (len<=0) return;
printf("[%03X] ",i);
for (i=0;i<len;) {
printf("%02X ",(int)buf[i]);
i++;
if (i%8 == 0) printf(" ");
if (i%16 == 0) {
print_asc(&buf[i-16],8); printf(" ");
print_asc(&buf[i-8],8); printf("\n");
if (i<len) printf("[%03X] ",i);
}
}
if (i%16) {
int n;
n = 16 - (i%16);
printf(" ");
if (n>8) printf(" ");
while (n--) printf(" ");
n = i%16;
if (n > 8) n = 8;
print_asc(&buf[i-(i%16)],n); printf(" ");
n = (i%16) - n;
if (n>0) print_asc(&buf[i-n],n);
printf("\n");
}
}
static void help(void)
{
printf("\n"
"tdbtool: \n"
" create dbname : create a database\n"
" open dbname : open an existing database\n"
" erase : erase the database\n"
" dump : dump the database as strings\n"
" insert key data : insert a record\n"
" move key file : move a record to a destination tdb\n"
" store key data : store a record (replace)\n"
" show key : show a record by key\n"
" delete key : delete a record by key\n"
" list : print the database hash table and freelist\n"
" free : print the database freelist\n"
" 1 | first : print the first record\n"
" n | next : print the next record\n"
" q | quit : terminate\n"
" \\n : repeat 'next' command\n"
"\n");
}
static void terror(char *why)
{
printf("%s\n", why);
}
static char *get_token(int startover)
{
static char tmp[1024];
static char *cont = NULL;
char *insert, *start;
char *k = strtok(NULL, " ");
if (!k)
return NULL;
if (startover)
start = tmp;
else
start = cont;
strcpy(start, k);
insert = start + strlen(start) - 1;
while (*insert == '\\') {
*insert++ = ' ';
k = strtok(NULL, " ");
if (!k)
break;
strcpy(insert, k);
insert = start + strlen(start) - 1;
}
/* Get ready for next call */
cont = start + strlen(start) + 1;
return start;
}
static void create_tdb(void)
{
char *tok = get_token(1);
if (!tok) {
help();
return;
}
if (tdb) tdb_close(tdb);
tdb = tdb_open(tok, 0, TDB_CLEAR_IF_FIRST,
O_RDWR | O_CREAT | O_TRUNC, 0600);
if (!tdb) {
printf("Could not create %s: %s\n", tok, strerror(errno));
}
}
static void open_tdb(void)
{
char *tok = get_token(1);
if (!tok) {
help();
return;
}
if (tdb) tdb_close(tdb);
tdb = tdb_open(tok, 0, 0, O_RDWR, 0600);
if (!tdb) {
printf("Could not open %s: %s\n", tok, strerror(errno));
}
}
static void insert_tdb(void)
{
char *k = get_token(1);
char *d = get_token(0);
TDB_DATA key, dbuf;
if (!k || !d) {
help();
return;
}
key.dptr = k;
key.dsize = strlen(k)+1;
dbuf.dptr = d;
dbuf.dsize = strlen(d)+1;
if (tdb_store(tdb, key, dbuf, TDB_INSERT) == -1) {
terror("insert failed");
}
}
static void store_tdb(void)
{
char *k = get_token(1);
char *d = get_token(0);
TDB_DATA key, dbuf;
if (!k || !d) {
help();
return;
}
key.dptr = k;
key.dsize = strlen(k)+1;
dbuf.dptr = d;
dbuf.dsize = strlen(d)+1;
printf("Storing key:\n");
print_rec(tdb, key, dbuf, NULL);
if (tdb_store(tdb, key, dbuf, TDB_REPLACE) == -1) {
terror("store failed");
}
}
static void show_tdb(void)
{
char *k = get_token(1);
TDB_DATA key, dbuf;
if (!k) {
help();
return;
}
key.dptr = k;
key.dsize = strlen(k)+1;
dbuf = tdb_fetch(tdb, key);
if (!dbuf.dptr) {
/* maybe it is non-NULL terminated key? */
key.dsize = strlen(k);
dbuf = tdb_fetch(tdb, key);
if ( !dbuf.dptr ) {
terror("fetch failed");
return;
}
}
/* printf("%s : %*.*s\n", k, (int)dbuf.dsize, (int)dbuf.dsize, dbuf.dptr); */
print_rec(tdb, key, dbuf, NULL);
free( dbuf.dptr );
return;
}
static void delete_tdb(void)
{
char *k = get_token(1);
TDB_DATA key;
if (!k) {
help();
return;
}
key.dptr = k;
key.dsize = strlen(k)+1;
if (tdb_delete(tdb, key) != 0) {
terror("delete failed");
}
}
static void move_rec(void)
{
char *k = get_token(1);
char *file = get_token(0);
TDB_DATA key, dbuf;
TDB_CONTEXT *dst_tdb;
if (!k) {
help();
return;
}
if ( !file ) {
terror("need destination tdb name");
return;
}
key.dptr = k;
key.dsize = strlen(k)+1;
dbuf = tdb_fetch(tdb, key);
if (!dbuf.dptr) {
/* maybe it is non-NULL terminated key? */
key.dsize = strlen(k);
dbuf = tdb_fetch(tdb, key);
if ( !dbuf.dptr ) {
terror("fetch failed");
return;
}
}
print_rec(tdb, key, dbuf, NULL);
dst_tdb = tdb_open(file, 0, 0, O_RDWR, 0600);
if ( !dst_tdb ) {
terror("unable to open destination tdb");
return;
}
if ( tdb_store( dst_tdb, key, dbuf, TDB_REPLACE ) == -1 ) {
terror("failed to move record");
}
else
printf("record moved\n");
tdb_close( dst_tdb );
return;
}
#if 0
static int print_conn_key(TDB_DATA key)
{
printf( "pid =%5d ", ((connections_key*)key.dptr)->pid);
printf( "cnum =%10d ", ((connections_key*)key.dptr)->cnum);
printf( "name =[%s]\n", ((connections_key*)key.dptr)->name);
return 0;
}
static int print_conn_data(TDB_DATA dbuf)
{
printf( "pid =%5d ", ((connections_data*)dbuf.dptr)->pid);
printf( "cnum =%10d ", ((connections_data*)dbuf.dptr)->cnum);
printf( "name =[%s]\n", ((connections_data*)dbuf.dptr)->name);
printf( "uid =%5d ", ((connections_data*)dbuf.dptr)->uid);
printf( "addr =[%s]\n", ((connections_data*)dbuf.dptr)->addr);
printf( "gid =%5d ", ((connections_data*)dbuf.dptr)->gid);
printf( "machine=[%s]\n", ((connections_data*)dbuf.dptr)->machine);
printf( "start = %s\n", ctime(&((connections_data*)dbuf.dptr)->start));
return 0;
}
#endif
static int print_rec(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
{
#if 0
print_conn_key(key);
print_conn_data(dbuf);
return 0;
#else
printf("\nkey %d bytes\n", key.dsize);
print_asc(key.dptr, key.dsize);
printf("\ndata %d bytes\n", dbuf.dsize);
print_data(dbuf.dptr, dbuf.dsize);
return 0;
#endif
}
static int print_key(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
{
print_asc(key.dptr, key.dsize);
printf("\n");
return 0;
}
static int total_bytes;
static int traverse_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
{
total_bytes += dbuf.dsize;
return 0;
}
static void info_tdb(void)
{
int count;
total_bytes = 0;
if ((count = tdb_traverse(tdb, traverse_fn, NULL) == -1))
printf("Error = %s\n", tdb_errorstr(tdb));
else
printf("%d records totalling %d bytes\n", count, total_bytes);
}
static char *tdb_getline(char *prompt)
{
static char line[1024];
char *p;
fputs(prompt, stdout);
line[0] = 0;
p = fgets(line, sizeof(line)-1, stdin);
if (p) p = strchr(p, '\n');
if (p) *p = 0;
return p?line:NULL;
}
static int do_delete_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf,
void *state)
{
return tdb_delete(the_tdb, key);
}
static void first_record(TDB_CONTEXT *the_tdb, TDB_DATA *pkey)
{
TDB_DATA dbuf;
*pkey = tdb_firstkey(the_tdb);
dbuf = tdb_fetch(the_tdb, *pkey);
if (!dbuf.dptr) terror("fetch failed");
else {
/* printf("%s : %*.*s\n", k, (int)dbuf.dsize, (int)dbuf.dsize, dbuf.dptr); */
print_rec(the_tdb, *pkey, dbuf, NULL);
}
}
static void next_record(TDB_CONTEXT *the_tdb, TDB_DATA *pkey)
{
TDB_DATA dbuf;
*pkey = tdb_nextkey(the_tdb, *pkey);
dbuf = tdb_fetch(the_tdb, *pkey);
if (!dbuf.dptr)
terror("fetch failed");
else
/* printf("%s : %*.*s\n", k, (int)dbuf.dsize, (int)dbuf.dsize, dbuf.dptr); */
print_rec(the_tdb, *pkey, dbuf, NULL);
}
int main(int argc, char *argv[])
{
int bIterate = 0;
char *line;
char *tok;
TDB_DATA iterate_kbuf;
if (argv[1]) {
static char tmp[1024];
sprintf(tmp, "open %s", argv[1]);
tok=strtok(tmp," ");
open_tdb();
}
while ((line = tdb_getline("tdb> "))) {
/* Shell command */
if (line[0] == '!') {
system(line + 1);
continue;
}
if ((tok = strtok(line," "))==NULL) {
if (bIterate)
next_record(tdb, &iterate_kbuf);
continue;
}
if (strcmp(tok,"create") == 0) {
bIterate = 0;
create_tdb();
continue;
} else if (strcmp(tok,"open") == 0) {
open_tdb();
continue;
} else if ((strcmp(tok, "q") == 0) ||
(strcmp(tok, "quit") == 0)) {
break;
}
/* all the rest require a open database */
if (!tdb) {
bIterate = 0;
terror("database not open");
help();
continue;
}
if (strcmp(tok,"insert") == 0) {
bIterate = 0;
insert_tdb();
} else if (strcmp(tok,"store") == 0) {
bIterate = 0;
store_tdb();
} else if (strcmp(tok,"show") == 0) {
bIterate = 0;
show_tdb();
} else if (strcmp(tok,"erase") == 0) {
bIterate = 0;
tdb_traverse(tdb, do_delete_fn, NULL);
} else if (strcmp(tok,"delete") == 0) {
bIterate = 0;
delete_tdb();
} else if (strcmp(tok,"dump") == 0) {
bIterate = 0;
tdb_traverse(tdb, print_rec, NULL);
} else if (strcmp(tok,"move") == 0) {
bIterate = 0;
move_rec();
} else if (strcmp(tok,"list") == 0) {
tdb_dump_all(tdb);
} else if (strcmp(tok, "free") == 0) {
tdb_printfreelist(tdb);
} else if (strcmp(tok,"info") == 0) {
info_tdb();
} else if ( (strcmp(tok, "1") == 0) ||
(strcmp(tok, "first") == 0)) {
bIterate = 1;
first_record(tdb, &iterate_kbuf);
} else if ((strcmp(tok, "n") == 0) ||
(strcmp(tok, "next") == 0)) {
next_record(tdb, &iterate_kbuf);
} else if ((strcmp(tok, "keys") == 0)) {
bIterate = 0;
tdb_traverse(tdb, print_key, NULL);
} else {
help();
}
}
if (tdb) tdb_close(tdb);
return 0;
}
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