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author | Rusty Russell <rusty@rustcorp.com.au> | 2012-06-18 22:30:26 +0930 |
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committer | Rusty Russell <rusty@rustcorp.com.au> | 2012-06-19 05:38:06 +0200 |
commit | 16cc345d4f84367e70e133200f7aa335c2aae8c6 (patch) | |
tree | 955a33c25c19f3127e24ba6b0e108da6b1f7f804 /lib/ntdb/tools/ntdbrestore.c | |
parent | 76758b9767fad45ff144bbfef3ab84bca5d4650e (diff) | |
download | samba-16cc345d4f84367e70e133200f7aa335c2aae8c6.tar.gz samba-16cc345d4f84367e70e133200f7aa335c2aae8c6.tar.bz2 samba-16cc345d4f84367e70e133200f7aa335c2aae8c6.zip |
TDB2: Goodbye TDB2, Hello NTDB.
This renames everything from tdb2 to ntdb: importantly, we no longer
use the tdb_ namespace, so you can link against both ntdb and tdb if
you want to.
This also enables building of standalone ntdb by the autobuild script.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'lib/ntdb/tools/ntdbrestore.c')
-rw-r--r-- | lib/ntdb/tools/ntdbrestore.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/lib/ntdb/tools/ntdbrestore.c b/lib/ntdb/tools/ntdbrestore.c new file mode 100644 index 0000000000..dad591d562 --- /dev/null +++ b/lib/ntdb/tools/ntdbrestore.c @@ -0,0 +1,231 @@ +/* + ntdbrestore -- construct a ntdb 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 "config.h" +#include "ntdb.h" +#include <assert.h> +#ifdef HAVE_LIBREPLACE +#include <replace.h> +#include <system/filesys.h> +#else +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#endif + +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, NTDB_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 ntdb_context *ntdb, int *eof) +{ + int length; + NTDB_DATA key, data; + bool ret = false; + enum NTDB_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 = ntdb_store(ntdb, key, data, NTDB_INSERT); + if (e != NTDB_SUCCESS) { + fprintf(stderr, "NTDB error: %s\n", ntdb_errorstr(e)); + goto fail; + } + + ret = true; +fail: + free(key.dptr); + free(data.dptr); + return ret; +} + +static int restore_ntdb(const char *fname) +{ + struct ntdb_context *ntdb; + + ntdb = ntdb_open(fname, 0, O_RDWR|O_CREAT|O_EXCL, 0666, NULL); + if (!ntdb) { + perror("ntdb_open"); + fprintf(stderr, "Failed to open %s\n", fname); + return 1; + } + + while (1) { + int eof = 0; + if (!read_rec(stdin, ntdb, &eof)) { + if (eof) { + break; + } + return 1; + } + } + if (ntdb_close(ntdb)) { + fprintf(stderr, "Error closing ntdb\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_ntdb(fname); +} |