--- /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