Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/sources/formale Sprachen/C/Apache/support/ (Apache Software Stiftung Version 2.4.65^©) Datei vom 15.3.2013 mit Größe 7 kB

Quelle httxt2dbm.c Sprache: C

/* 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 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 (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 - value);

        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) %pm" NL NL,
                         input, rv, &rv);
        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) %pm" NL NL,
                         output, rv, &rv);
        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) %pm" NL NL,
                         rv, &rv);
        return 1;
    }

    apr_dbm_close(outdbm);

    if (verbose) {
        apr_file_printf(errfile, "Conversion Complete." NL);
    }

    return 0;
}

quality90%

¤ Dauer der Verarbeitung: 0.2 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.