+++ /dev/null
-/*
- tdb2restore -- construct a tdb from tdbdump output.
- Copyright (C) Volker Lendecke 2010
- Copyright (C) Simon McVittie 2005
-
- 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 3 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, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "tdb2.h"
-#include <assert.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#define debug_fprintf(file, fmt, ...) do {/*nothing*/} while (0)
-
-static int read_linehead(FILE *f)
-{
- int i, c;
- int num_bytes;
- char prefix[128];
-
- while (1) {
- c = getc(f);
- if (c == EOF) {
- return -1;
- }
- if (c == '(') {
- break;
- }
- }
- for (i=0; i<sizeof(prefix); i++) {
- c = getc(f);
- if (c == EOF) {
- return -1;
- }
- prefix[i] = c;
- if (c == '"') {
- break;
- }
- }
- if (i == sizeof(prefix)) {
- return -1;
- }
- prefix[i] = '\0';
-
- if (sscanf(prefix, "%d) = ", &num_bytes) != 1) {
- return -1;
- }
- return num_bytes;
-}
-
-static int read_hex(void) {
- int c;
- c = getchar();
- if (c == EOF) {
- fprintf(stderr, "Unexpected EOF in data\n");
- return -1;
- } else if (c == '"') {
- fprintf(stderr, "Unexpected \\\" sequence\n");
- return -1;
- } else if ('0' <= c && c <= '9') {
- return c - '0';
- } else if ('A' <= c && c <= 'F') {
- return c - 'A' + 10;
- } else if ('a' <= c && c <= 'f') {
- return c - 'a' + 10;
- } else {
- fprintf(stderr, "Invalid hex: %c\n", c);
- return -1;
- }
-}
-
-static int read_data(FILE *f, struct tdb_data *d, size_t size) {
- int c, low, high;
- int i;
-
- d->dptr = (unsigned char *)malloc(size);
- if (d->dptr == NULL) {
- return -1;
- }
- d->dsize = size;
-
- for (i=0; i<size; i++) {
- c = getc(f);
- if (c == EOF) {
- fprintf(stderr, "Unexpected EOF in data\n");
- return 1;
- } else if (c == '"') {
- return 0;
- } else if (c == '\\') {
- high = read_hex();
- if (high < 0) {
- return -1;
- }
- high = high << 4;
- assert(high == (high & 0xf0));
- low = read_hex();
- if (low < 0) {
- return -1;
- }
- assert(low == (low & 0x0f));
- d->dptr[i] = (low|high);
- } else {
- d->dptr[i] = c;
- }
- }
- return 0;
-}
-
-static int swallow(FILE *f, const char *s, int *eof)
-{
- char line[128];
-
- if (fgets(line, sizeof(line), f) == NULL) {
- if (eof != NULL) {
- *eof = 1;
- }
- return -1;
- }
- if (strcmp(line, s) != 0) {
- return -1;
- }
- return 0;
-}
-
-static bool read_rec(FILE *f, struct tdb_context *tdb, int *eof)
-{
- int length;
- struct tdb_data key, data;
- bool ret = false;
- enum TDB_ERROR e;
-
- key.dptr = NULL;
- data.dptr = NULL;
-
- if (swallow(f, "{\n", eof) == -1) {
- goto fail;
- }
- length = read_linehead(f);
- if (length == -1) {
- goto fail;
- }
- if (read_data(f, &key, length) == -1) {
- goto fail;
- }
- if (swallow(f, "\"\n", NULL) == -1) {
- goto fail;
- }
- length = read_linehead(f);
- if (length == -1) {
- goto fail;
- }
- if (read_data(f, &data, length) == -1) {
- goto fail;
- }
- if ((swallow(f, "\"\n", NULL) == -1)
- || (swallow(f, "}\n", NULL) == -1)) {
- goto fail;
- }
- e = tdb_store(tdb, key, data, TDB_INSERT);
- if (e != TDB_SUCCESS) {
- fprintf(stderr, "TDB error: %s\n", tdb_errorstr(e));
- goto fail;
- }
-
- ret = true;
-fail:
- free(key.dptr);
- free(data.dptr);
- return ret;
-}
-
-static int restore_tdb(const char *fname)
-{
- struct tdb_context *tdb;
-
- tdb = tdb_open(fname, 0, O_RDWR|O_CREAT|O_EXCL, 0666, NULL);
- if (!tdb) {
- perror("tdb_open");
- fprintf(stderr, "Failed to open %s\n", fname);
- return 1;
- }
-
- while (1) {
- int eof = 0;
- if (!read_rec(stdin, tdb, &eof)) {
- if (eof) {
- break;
- }
- return 1;
- }
- }
- if (tdb_close(tdb)) {
- fprintf(stderr, "Error closing tdb\n");
- return 1;
- }
- fprintf(stderr, "EOF\n");
- return 0;
-}
-
-int main(int argc, char *argv[])
-{
- char *fname;
-
- if (argc < 2) {
- printf("Usage: %s dbname < tdbdump_output\n", argv[0]);
- exit(1);
- }
-
- fname = argv[1];
-
- return restore_tdb(fname);
-}
projects / ccan / blobdiff