httxt2dbm.c revision 4a5329dc80d2da163d3eb2f3ab26234b5c271c7a
/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* httxt2dbm.c: simple program for converting RewriteMap text files to DBM
* Rewrite databases for the Apache HTTP server
*
*/
#include "apr.h"
#include "apr_lib.h"
#include "apr_strings.h"
#include "apr_file_io.h"
#include "apr_file_info.h"
#include "apr_pools.h"
#include "apr_getopt.h"
#include "apu.h"
#include "apr_dbm.h"
#if APR_HAVE_STDLIB_H
#include <stdlib.h> /* for atexit() */
#endif
static const char *input;
static const char *output;
static const char *format;
static const char *shortname;
static apr_file_t *errfile;
static char errbuf[120];
static int verbose;
/* From mod_rewrite.c */
#ifndef REWRITE_MAX_TXT_MAP_LINE
#define REWRITE_MAX_TXT_MAP_LINE 1024
#endif
#define NL APR_EOL_STR
#define AVAIL "available"
#define UNAVAIL "unavailable"
static void usage(void)
{
const char *have_sdbm;
const char *have_gdbm;
const char *have_ndbm;
const char *have_db;
#if APU_HAVE_SDBM
have_sdbm = AVAIL;
#else
have_sdbm = UNAVAIL;
#endif
#if APU_HAVE_GDBM
have_gdbm = AVAIL;
#else
have_gdbm = UNAVAIL;
#endif
#if APU_HAVE_NDBM
have_ndbm = AVAIL;
#else
have_ndbm = UNAVAIL;
#endif
#if APU_HAVE_DB
have_db = AVAIL;
#else
have_db = UNAVAIL;
#endif
apr_file_printf(errfile,
"%s -- Program to Create DBM Files for use by RewriteMap" NL
"Usage: %s [-v] [-f format] -i SOURCE_TXT -o OUTPUT_DBM" NL
NL
"Options: " NL
" -v More verbose output"NL
NL
" -i Source Text File. If '-', use stdin."NL
NL
" -o Output DBM."NL
NL
" -f DBM Format. If not specified, will use the APR Default." NL
" GDBM for GDBM files (%s)" NL
" SDBM for SDBM files (%s)" NL
" DB for berkeley DB files (%s)" NL
" NDBM for NDBM files (%s)" NL
" default for the default DBM type" NL
NL,
shortname,
shortname,
have_gdbm,
have_sdbm,
have_db,
have_ndbm);
}
static apr_status_t to_dbm(apr_dbm_t *dbm, apr_file_t *fp, apr_pool_t *pool)
{
apr_status_t rv = APR_SUCCESS;
char line[REWRITE_MAX_TXT_MAP_LINE + 1]; /* +1 for \0 */
apr_datum_t dbmkey;
apr_datum_t dbmval;
apr_pool_t* p;
apr_pool_create(&p, pool);
while (apr_file_gets(line, sizeof(line), fp) == APR_SUCCESS) {
char *c, *value;
if (*line == '#' || apr_isspace(*line)) {
continue;
}
c = line;
while (*c && !apr_isspace(*c)) {
++c;
}
if (!*c) {
/* no value. solid line of data. */
continue;
}
dbmkey.dptr = apr_pstrmemdup(p, line, c - line);
dbmkey.dsize = (c - line);
while (*c && apr_isspace(*c)) {
++c;
}
if (!*c) {
apr_pool_clear(p);
continue;
}
value = c;
while (*c && !apr_isspace(*c)) {
++c;
}
dbmval.dptr = apr_pstrmemdup(p, value, c - value);
dbmval.dsize = (c - line);
if (verbose) {
apr_file_printf(errfile, " '%s' -> '%s'"NL,
dbmkey.dptr, dbmval.dptr);
}
rv = apr_dbm_store(dbm, dbmkey, dbmval);
apr_pool_clear(p);
if (rv != APR_SUCCESS) {
break;
}
}
return rv;
}
int main(int argc, const char *const argv[])
{
apr_pool_t *pool;
apr_status_t rv = APR_SUCCESS;
apr_getopt_t *opt;
const char *opt_arg;
char ch;
apr_file_t *infile;
apr_dbm_t *outdbm;
apr_app_initialize(&argc, &argv, NULL);
atexit(apr_terminate);
verbose = 0;
format = NULL;
input = NULL;
output = NULL;
apr_pool_create(&pool, NULL);
if (argc) {
shortname = apr_filepath_name_get(argv[0]);
}
else {
shortname = "httxt2dbm";
}
apr_file_open_stderr(&errfile, pool);
rv = apr_getopt_init(&opt, pool, argc, argv);
if (rv != APR_SUCCESS) {
apr_file_printf(errfile, "Error: apr_getopt_init failed."NL NL);
return 1;
}
if (argc <= 1) {
usage();
return 1;
}
while ((rv = apr_getopt(opt, "vf::i::o::", &ch, &opt_arg)) == APR_SUCCESS) {
switch (ch) {
case 'v':
if (verbose) {
apr_file_printf(errfile, "Error: -v can only be passed once" NL NL);
usage();
return 1;
}
verbose = 1;
break;
case 'f':
if (format) {
apr_file_printf(errfile, "Error: -f can only be passed once" NL NL);
usage();
return 1;
}
format = apr_pstrdup(pool, opt_arg);
break;
case 'i':
if (input) {
apr_file_printf(errfile, "Error: -i can only be passed once" NL NL);
usage();
return 1;
}
input = apr_pstrdup(pool, opt_arg);
break;
case 'o':
if (output) {
apr_file_printf(errfile, "Error: -o can only be passed once" NL NL);
usage();
return 1;
}
output = apr_pstrdup(pool, opt_arg);
break;
}
}
if (rv != APR_EOF) {
apr_file_printf(errfile, "Error: Parsing Arguments Failed" NL NL);
usage();
return 1;
}
if (!input) {
apr_file_printf(errfile, "Error: No input file specified." NL NL);
usage();
return 1;
}
if (!output) {
apr_file_printf(errfile, "Error: No output DBM specified." NL NL);
usage();
return 1;
}
if (!format) {
format = "default";
}
if (verbose) {
apr_file_printf(errfile, "DBM Format: %s"NL, format);
}
if (!strcmp(input, "-")) {
rv = apr_file_open_stdin(&infile, pool);
}
else {
rv = apr_file_open(&infile, input, APR_READ|APR_BUFFERED,
APR_OS_DEFAULT, pool);
}
if (rv != APR_SUCCESS) {
apr_file_printf(errfile,
"Error: Cannot open input file '%s': (%d) %s" NL NL,
input, rv, apr_strerror(rv, errbuf, sizeof(errbuf)));
return 1;
}
if (verbose) {
apr_file_printf(errfile, "Input File: %s"NL, input);
}
rv = apr_dbm_open_ex(&outdbm, format, output, APR_DBM_RWCREATE,
APR_OS_DEFAULT, pool);
if (APR_STATUS_IS_ENOTIMPL(rv)) {
apr_file_printf(errfile,
"Error: The requested DBM Format '%s' is not available." NL NL,
format);
return 1;
}
if (rv != APR_SUCCESS) {
apr_file_printf(errfile,
"Error: Cannot open output DBM '%s': (%d) %s" NL NL,
output, rv, apr_strerror(rv, errbuf, sizeof(errbuf)));
return 1;
}
if (verbose) {
apr_file_printf(errfile, "DBM File: %s"NL, output);
}
rv = to_dbm(outdbm, infile, pool);
if (rv != APR_SUCCESS) {
apr_file_printf(errfile,
"Error: Converting to DBM: (%d) %s" NL NL,
rv, apr_strerror(rv, errbuf, sizeof(errbuf)));
return 1;
}
apr_dbm_close(outdbm);
if (verbose) {
apr_file_printf(errfile, "Conversion Complete." NL);
}
return 0;
}