| /* 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. |
| */ |
| |
| /* |
| * htdbm.c: simple program for manipulating DBM |
| * password databases for the Apache HTTP server |
| * |
| * Contributed by Mladen Turk <mturk mappingsoft.com> |
| * 12 Oct 2001 |
| */ |
| |
| #include "passwd_common.h" |
| #include "apr_file_io.h" |
| #include "apr_file_info.h" |
| #include "apr_pools.h" |
| #include "apr_signal.h" |
| #include "apr_md5.h" |
| #include "apr_sha1.h" |
| #include "apr_dbm.h" |
| #include "apr_getopt.h" |
| |
| #if APR_HAVE_STDLIB_H |
| #include <stdlib.h> |
| #endif |
| #if APR_HAVE_STRING_H |
| #include <string.h> |
| #endif |
| #if APR_HAVE_STRINGS_H |
| #include <strings.h> |
| #endif |
| #include <time.h> |
| |
| #if APR_CHARSET_EBCDIC |
| #include "apr_xlate.h" |
| #endif /*APR_CHARSET_EBCDIC*/ |
| |
| #if APR_HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| #if APR_HAVE_CRYPT_H |
| #include <crypt.h> |
| #endif |
| |
| |
| typedef struct htdbm_t htdbm_t; |
| |
| struct htdbm_t { |
| apr_dbm_t *dbm; |
| struct passwd_ctx ctx; |
| #if APR_CHARSET_EBCDIC |
| apr_xlate_t *to_ascii; |
| #endif |
| char *filename; |
| char *username; |
| char *comment; |
| char *type; |
| int create; |
| int rdonly; |
| }; |
| |
| |
| #define HTDBM_MAKE 0 |
| #define HTDBM_DELETE 1 |
| #define HTDBM_VERIFY 2 |
| #define HTDBM_LIST 3 |
| #define HTDBM_NOFILE 4 |
| |
| static void terminate(void) |
| { |
| apr_terminate(); |
| #ifdef NETWARE |
| pressanykey(); |
| #endif |
| } |
| |
| static void htdbm_terminate(htdbm_t *htdbm) |
| { |
| if (htdbm->dbm) |
| apr_dbm_close(htdbm->dbm); |
| htdbm->dbm = NULL; |
| } |
| |
| static htdbm_t *h; |
| |
| static void htdbm_interrupted(void) |
| { |
| htdbm_terminate(h); |
| fprintf(stderr, "htdbm Interrupted !\n"); |
| exit(ERR_INTERRUPTED); |
| } |
| |
| static apr_status_t htdbm_init(apr_pool_t **pool, htdbm_t **hdbm) |
| { |
| |
| #if APR_CHARSET_EBCDIC |
| apr_status_t rv; |
| #endif |
| |
| apr_pool_create( pool, NULL); |
| apr_pool_abort_set(abort_on_oom, *pool); |
| apr_file_open_stderr(&errfile, *pool); |
| apr_signal(SIGINT, (void (*)(int)) htdbm_interrupted); |
| |
| (*hdbm) = (htdbm_t *)apr_pcalloc(*pool, sizeof(htdbm_t)); |
| (*hdbm)->ctx.pool = *pool; |
| |
| #if APR_CHARSET_EBCDIC |
| rv = apr_xlate_open(&((*hdbm)->to_ascii), "ISO-8859-1", APR_DEFAULT_CHARSET, (*hdbm)->ctx.pool); |
| if (rv) { |
| fprintf(stderr, "apr_xlate_open(to ASCII)->%d\n", rv); |
| return APR_EGENERAL; |
| } |
| rv = apr_SHA1InitEBCDIC((*hdbm)->to_ascii); |
| if (rv) { |
| fprintf(stderr, "apr_SHA1InitEBCDIC()->%d\n", rv); |
| return APR_EGENERAL; |
| } |
| rv = apr_MD5InitEBCDIC((*hdbm)->to_ascii); |
| if (rv) { |
| fprintf(stderr, "apr_MD5InitEBCDIC()->%d\n", rv); |
| return APR_EGENERAL; |
| } |
| #endif /*APR_CHARSET_EBCDIC*/ |
| |
| /* Set MD5 as default */ |
| (*hdbm)->ctx.alg = ALG_APMD5; |
| (*hdbm)->type = "default"; |
| return APR_SUCCESS; |
| } |
| |
| static apr_status_t htdbm_open(htdbm_t *htdbm) |
| { |
| if (htdbm->create) |
| return apr_dbm_open_ex(&htdbm->dbm, htdbm->type, htdbm->filename, APR_DBM_RWCREATE, |
| APR_OS_DEFAULT, htdbm->ctx.pool); |
| else |
| return apr_dbm_open_ex(&htdbm->dbm, htdbm->type, htdbm->filename, |
| htdbm->rdonly ? APR_DBM_READONLY : APR_DBM_READWRITE, |
| APR_OS_DEFAULT, htdbm->ctx.pool); |
| } |
| |
| static apr_status_t htdbm_save(htdbm_t *htdbm, int *changed) |
| { |
| apr_datum_t key, val; |
| |
| if (!htdbm->username) |
| return APR_SUCCESS; |
| |
| key.dptr = htdbm->username; |
| key.dsize = strlen(htdbm->username); |
| if (apr_dbm_exists(htdbm->dbm, key)) |
| *changed = 1; |
| |
| val.dsize = strlen(htdbm->ctx.passwd); |
| if (!htdbm->comment) |
| val.dptr = htdbm->ctx.passwd; |
| else { |
| val.dptr = apr_pstrcat(htdbm->ctx.pool, htdbm->ctx.passwd, ":", |
| htdbm->comment, NULL); |
| val.dsize += (strlen(htdbm->comment) + 1); |
| } |
| return apr_dbm_store(htdbm->dbm, key, val); |
| } |
| |
| static apr_status_t htdbm_del(htdbm_t *htdbm) |
| { |
| apr_datum_t key; |
| |
| key.dptr = htdbm->username; |
| key.dsize = strlen(htdbm->username); |
| if (!apr_dbm_exists(htdbm->dbm, key)) |
| return APR_ENOENT; |
| |
| return apr_dbm_delete(htdbm->dbm, key); |
| } |
| |
| static apr_status_t htdbm_verify(htdbm_t *htdbm) |
| { |
| apr_datum_t key, val; |
| char *pwd; |
| char *rec, *cmnt; |
| |
| key.dptr = htdbm->username; |
| key.dsize = strlen(htdbm->username); |
| if (!apr_dbm_exists(htdbm->dbm, key)) |
| return APR_ENOENT; |
| if (apr_dbm_fetch(htdbm->dbm, key, &val) != APR_SUCCESS) |
| return APR_ENOENT; |
| rec = apr_pstrndup(htdbm->ctx.pool, val.dptr, val.dsize); |
| cmnt = strchr(rec, ':'); |
| if (cmnt) |
| pwd = apr_pstrndup(htdbm->ctx.pool, rec, cmnt - rec); |
| else |
| pwd = apr_pstrdup(htdbm->ctx.pool, rec); |
| return apr_password_validate(htdbm->ctx.passwd, pwd); |
| } |
| |
| static apr_status_t htdbm_list(htdbm_t *htdbm) |
| { |
| apr_status_t rv; |
| apr_datum_t key, val; |
| char *cmnt; |
| int i = 0; |
| |
| rv = apr_dbm_firstkey(htdbm->dbm, &key); |
| if (rv != APR_SUCCESS) { |
| fprintf(stderr, "Empty database -- %s\n", htdbm->filename); |
| return APR_ENOENT; |
| } |
| fprintf(stderr, "Dumping records from database -- %s\n", htdbm->filename); |
| fprintf(stderr, " %-32s Comment\n", "Username"); |
| while (key.dptr != NULL) { |
| rv = apr_dbm_fetch(htdbm->dbm, key, &val); |
| if (rv != APR_SUCCESS) { |
| fprintf(stderr, "Failed getting data from %s\n", htdbm->filename); |
| return APR_EGENERAL; |
| } |
| /* Note: we don't store \0-terminators on our dbm data */ |
| fprintf(stderr, " %-32.*s", (int)key.dsize, key.dptr); |
| cmnt = memchr(val.dptr, ':', val.dsize); |
| if (cmnt) |
| fprintf(stderr, " %.*s", (int)(val.dptr+val.dsize - (cmnt+1)), cmnt + 1); |
| fprintf(stderr, "\n"); |
| rv = apr_dbm_nextkey(htdbm->dbm, &key); |
| if (rv != APR_SUCCESS) |
| fprintf(stderr, "Failed getting NextKey\n"); |
| ++i; |
| } |
| |
| fprintf(stderr, "Total #records : %d\n", i); |
| return APR_SUCCESS; |
| } |
| |
| static int htdbm_make(htdbm_t *htdbm) |
| { |
| char cpw[MAX_STRING_LEN]; |
| int ret; |
| |
| htdbm->ctx.out = cpw; |
| htdbm->ctx.out_len = sizeof(cpw); |
| ret = mkhash(&htdbm->ctx); |
| if (ret != 0) { |
| fprintf(stderr, "Error: %s\n", htdbm->ctx.errstr); |
| return ret; |
| } |
| htdbm->ctx.passwd = apr_pstrdup(htdbm->ctx.pool, cpw); |
| return 0; |
| } |
| |
| static apr_status_t htdbm_valid_username(htdbm_t *htdbm) |
| { |
| if (!htdbm->username || (strlen(htdbm->username) > 64) || (strlen(htdbm->username) < 1)) { |
| fprintf(stderr, "Invalid username length\n"); |
| return APR_EINVAL; |
| } |
| if (strchr(htdbm->username, ':')) { |
| fprintf(stderr, "Username contains invalid characters\n"); |
| return APR_EINVAL; |
| } |
| return APR_SUCCESS; |
| } |
| |
| static void htdbm_usage(void) |
| { |
| fprintf(stderr, |
| "htdbm -- program for manipulating DBM password databases.\n\n" |
| "Usage: htdbm [-cimBdpstvx] [-C cost] [-TDBTYPE] database username\n" |
| " -b[cmBdptsv] [-C cost] [-TDBTYPE] database username password\n" |
| " -n[imBdpst] [-C cost] username\n" |
| " -nb[mBdpst] [-C cost] username password\n" |
| " -v[imBdps] [-C cost] [-TDBTYPE] database username\n" |
| " -vb[mBdps] [-C cost] [-TDBTYPE] database username password\n" |
| " -x [-TDBTYPE] database username\n" |
| " -l [-TDBTYPE] database\n" |
| "Options:\n" |
| " -c Create a new database.\n" |
| " -n Don't update database; display results on stdout.\n" |
| " -b Use the password from the command line rather than prompting for it.\n" |
| " -i Read password from stdin without verification (for script usage).\n" |
| " -m Force MD5 encryption of the password (default).\n" |
| " -B Force BCRYPT encryption of the password (very secure).\n" |
| " -C Set the computing time used for the bcrypt algorithm\n" |
| " (higher is more secure but slower, default: %d, valid: 4 to 31).\n" |
| " -d Force CRYPT encryption of the password (8 chars max, insecure).\n" |
| " -s Force SHA encryption of the password (insecure).\n" |
| " -p Do not encrypt the password (plaintext, insecure).\n" |
| " -T DBM Type (SDBM|GDBM|DB|default).\n" |
| " -l Display usernames from database on stdout.\n" |
| " -v Verify the username/password.\n" |
| " -x Remove the username record from database.\n" |
| " -t The last param is username comment.\n" |
| "The SHA algorithm does not use a salt and is less secure than the " |
| "MD5 algorithm.\n", |
| BCRYPT_DEFAULT_COST); |
| exit(ERR_SYNTAX); |
| } |
| |
| int main(int argc, const char * const argv[]) |
| { |
| apr_pool_t *pool; |
| apr_status_t rv; |
| char errbuf[MAX_STRING_LEN]; |
| int need_file = 1; |
| int need_user = 1; |
| int need_pwd = 1; |
| int need_cmnt = 0; |
| int changed = 0; |
| int cmd = HTDBM_MAKE; |
| int i, ret, args_left = 2; |
| apr_getopt_t *state; |
| char opt; |
| const char *opt_arg; |
| |
| apr_app_initialize(&argc, &argv, NULL); |
| atexit(terminate); |
| |
| if ((rv = htdbm_init(&pool, &h)) != APR_SUCCESS) { |
| fprintf(stderr, "Unable to initialize htdbm terminating!\n"); |
| apr_strerror(rv, errbuf, sizeof(errbuf)); |
| exit(1); |
| } |
| |
| rv = apr_getopt_init(&state, pool, argc, argv); |
| if (rv != APR_SUCCESS) |
| exit(ERR_SYNTAX); |
| |
| while ((rv = apr_getopt(state, "cnmspdBbtivxlC:T:", &opt, &opt_arg)) == APR_SUCCESS) { |
| switch (opt) { |
| case 'c': |
| h->create = 1; |
| break; |
| case 'n': |
| need_file = 0; |
| cmd = HTDBM_NOFILE; |
| args_left--; |
| break; |
| case 'l': |
| need_pwd = 0; |
| need_user = 0; |
| cmd = HTDBM_LIST; |
| h->rdonly = 1; |
| args_left--; |
| break; |
| case 't': |
| need_cmnt = 1; |
| args_left++; |
| break; |
| case 'T': |
| h->type = apr_pstrdup(h->ctx.pool, opt_arg); |
| break; |
| case 'v': |
| h->rdonly = 1; |
| cmd = HTDBM_VERIFY; |
| break; |
| case 'x': |
| need_pwd = 0; |
| cmd = HTDBM_DELETE; |
| break; |
| default: |
| ret = parse_common_options(&h->ctx, opt, opt_arg); |
| if (ret) { |
| fprintf(stderr, "Error: %s\n", h->ctx.errstr); |
| exit(ret); |
| } |
| } |
| } |
| if (h->ctx.passwd_src == PW_ARG) { |
| need_pwd = 0; |
| args_left++; |
| } |
| /* |
| * Make sure we still have exactly the right number of arguments left |
| * (the filename, the username, and possibly the password if -b was |
| * specified). |
| */ |
| i = state->ind; |
| if (rv != APR_EOF || argc - i != args_left) |
| htdbm_usage(); |
| |
| if (need_file) { |
| h->filename = apr_pstrdup(h->ctx.pool, argv[i++]); |
| if ((rv = htdbm_open(h)) != APR_SUCCESS) { |
| fprintf(stderr, "Error opening database %s\n", h->filename); |
| apr_strerror(rv, errbuf, sizeof(errbuf)); |
| fprintf(stderr,"%s\n",errbuf); |
| exit(ERR_FILEPERM); |
| } |
| } |
| if (need_user) { |
| h->username = apr_pstrdup(pool, argv[i++]); |
| if (htdbm_valid_username(h) != APR_SUCCESS) |
| exit(ERR_BADUSER); |
| } |
| if (h->ctx.passwd_src == PW_ARG) |
| h->ctx.passwd = apr_pstrdup(pool, argv[i++]); |
| |
| if (need_pwd) { |
| ret = get_password(&h->ctx); |
| if (ret) { |
| fprintf(stderr, "Error: %s\n", h->ctx.errstr); |
| exit(ret); |
| } |
| } |
| if (need_cmnt) |
| h->comment = apr_pstrdup(pool, argv[i++]); |
| |
| switch (cmd) { |
| case HTDBM_VERIFY: |
| if ((rv = htdbm_verify(h)) != APR_SUCCESS) { |
| if (APR_STATUS_IS_ENOENT(rv)) { |
| fprintf(stderr, "The user '%s' could not be found in database\n", h->username); |
| exit(ERR_BADUSER); |
| } |
| else { |
| fprintf(stderr, "Password mismatch for user '%s'\n", h->username); |
| exit(ERR_PWMISMATCH); |
| } |
| } |
| else |
| fprintf(stderr, "Password validated for user '%s'\n", h->username); |
| break; |
| case HTDBM_DELETE: |
| if (htdbm_del(h) != APR_SUCCESS) { |
| fprintf(stderr, "Cannot find user '%s' in database\n", h->username); |
| exit(ERR_BADUSER); |
| } |
| h->username = NULL; |
| changed = 1; |
| break; |
| case HTDBM_LIST: |
| htdbm_list(h); |
| break; |
| default: |
| ret = htdbm_make(h); |
| if (ret) |
| exit(ret); |
| break; |
| } |
| if (need_file && !h->rdonly) { |
| if ((rv = htdbm_save(h, &changed)) != APR_SUCCESS) { |
| apr_strerror(rv, errbuf, sizeof(errbuf)); |
| exit(ERR_FILEPERM); |
| } |
| fprintf(stdout, "Database %s %s.\n", h->filename, |
| h->create ? "created" : (changed ? "modified" : "updated")); |
| } |
| if (cmd == HTDBM_NOFILE) { |
| if (!need_cmnt) { |
| fprintf(stderr, "%s:%s\n", h->username, h->ctx.passwd); |
| } |
| else { |
| fprintf(stderr, "%s:%s:%s\n", h->username, h->ctx.passwd, |
| h->comment); |
| } |
| } |
| htdbm_terminate(h); |
| |
| return 0; /* Suppress compiler warning. */ |
| } |
