#ifdef STANDALONE
#if HAVE_CONFIG_H
#include <config.h>
#endif
#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>
#else
#include "includes.h"
#ifdef malloc
#undef malloc
#endif
#ifdef realloc
#undef realloc
#endif
#ifdef calloc
#undef calloc
#endif
#endif
#include "tdb.h"
static int failed;
char *add_suffix(const char *name, const char *suffix)
{
char *ret;
int len = strlen(name) + strlen(suffix) + 1;
ret = malloc(len);
if (!ret) {
fprintf(stderr,"Out of memory!\n");
exit(1);
}
snprintf(ret, len, "%s%s", name, suffix);
return ret;
}
static int copy_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
{
TDB_CONTEXT *tdb_new = (TDB_CONTEXT *)state;
if (tdb_store(tdb_new, key, dbuf, TDB_INSERT) != 0) {
fprintf(stderr,"Failed to insert into %s\n", tdb_new->name);
failed = 1;
return 1;
}
return 0;
}
static int test_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
{
return 0;
}
int backup_tdb(const char *old_name, const char *new_name)
{
TDB_CONTEXT *tdb;
TDB_CONTEXT *tdb_new;
char *tmp_name;
struct stat st;
int count1, count2;
tmp_name = add_suffix(new_name, ".tmp");
if (stat(old_name, &st) != 0) {
perror(old_name);
return 1;
}
tdb = tdb_open(old_name, 0, 0, O_RDWR, 0);
if (!tdb) {
printf("Failed to open %s\n", old_name);
return 1;
}
unlink(tmp_name);
tdb_new = tdb_open(tmp_name, tdb->header.hash_size,
TDB_DEFAULT, O_RDWR|O_CREAT|O_EXCL,
st.st_mode & 0777);
if (!tdb_new) {
perror(tmp_name);
free(tmp_name);
return 1;
}
if (tdb_lockall(tdb) != 0) {
fprintf(stderr,"Failed to lock %s\n", old_name);
tdb_close(tdb);
tdb_close(tdb_new);
unlink(tmp_name);
free(tmp_name);
return 1;
}
failed = 0;
count1 = tdb_traverse(tdb, copy_fn, (void *)tdb_new);
if (count1 < 0 || failed) {
fprintf(stderr,"failed to copy %s\n", old_name);
tdb_close(tdb);
tdb_close(tdb_new);
unlink(tmp_name);
free(tmp_name);
return 1;
}
tdb_close(tdb);
tdb_close(tdb_new);
tdb_new = tdb_open(tmp_name, 0, TDB_DEFAULT, O_RDONLY, 0);
if (!tdb_new) {
fprintf(stderr,"failed to reopen %s\n", tmp_name);
unlink(tmp_name);
perror(tmp_name);
free(tmp_name);
return 1;
}
count2 = tdb_traverse(tdb_new, test_fn, 0);
if (count2 != count1) {
fprintf(stderr,"failed to copy %s\n", old_name);
tdb_close(tdb_new);
unlink(tmp_name);
free(tmp_name);
return 1;
}
fsync(tdb_new->fd);
tdb_close(tdb_new);
unlink(new_name);
if (rename(tmp_name, new_name) != 0) {
perror(new_name);
free(tmp_name);
return 1;
}
free(tmp_name);
return 0;
}
int verify_tdb(const char *fname, const char *bak_name)
{
TDB_CONTEXT *tdb;
int count = -1;
tdb = tdb_open(fname, 0, 0, O_RDONLY, 0);
if (tdb) {
count = tdb_traverse(tdb, test_fn, NULL);
tdb_close(tdb);
}
if (count < 0) {
printf("restoring %s\n", fname);
return backup_tdb(bak_name, fname);
}
printf("%s : %d records\n", fname, count);
return 0;
}