1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * htdbm.c: simple program for manipulating DBM
19 * password databases for the Apache HTTP server
21 * Contributed by Mladen Turk <mturk mappingsoft.com>
27 #include "apr_strings.h"
28 #include "apr_file_io.h"
29 #include "apr_file_info.h"
30 #include "apr_pools.h"
31 #include "apr_signal.h"
42 #if APR_HAVE_STRINGS_H
47 #if APR_CHARSET_EBCDIC
48 #include "apr_xlate.h"
49 #endif /*APR_CHARSET_EBCDIC*/
59 #if !APR_CHARSET_EBCDIC
62 #else /*APR_CHARSET_EBCDIC*/
65 #endif /*APR_CHARSET_EBCDIC*/
67 #define MAX_STRING_LEN 256
77 #define ERR_FILEPERM 1
79 #define ERR_PWMISMATCH 3
80 #define ERR_INTERRUPTED 4
81 #define ERR_OVERFLOW 5
86 typedef struct htdbm_t htdbm_t;
91 #if APR_CHARSET_EBCDIC
92 apr_xlate_t *to_ascii;
106 #define HTDBM_DELETE 1
107 #define HTDBM_VERIFY 2
109 #define HTDBM_NOFILE 4
110 #define HTDBM_STDIN 5
112 static void terminate(void)
120 static void htdbm_terminate(htdbm_t *htdbm)
123 apr_dbm_close(htdbm->dbm);
129 static void htdbm_interrupted(void)
132 fprintf(stderr, "htdbm Interrupted !\n");
133 exit(ERR_INTERRUPTED);
136 static apr_status_t htdbm_init(apr_pool_t **pool, htdbm_t **hdbm)
139 #if APR_CHARSET_EBCDIC
143 apr_pool_create( pool, NULL);
144 apr_signal(SIGINT, (void (*)(int)) htdbm_interrupted);
146 (*hdbm) = (htdbm_t *)apr_pcalloc(*pool, sizeof(htdbm_t));
147 (*hdbm)->pool = *pool;
149 #if APR_CHARSET_EBCDIC
150 rv = apr_xlate_open(&((*hdbm)->to_ascii), "ISO-8859-1", APR_DEFAULT_CHARSET, (*hdbm)->pool);
152 fprintf(stderr, "apr_xlate_open(to ASCII)->%d\n", rv);
155 rv = apr_SHA1InitEBCDIC((*hdbm)->to_ascii);
157 fprintf(stderr, "apr_SHA1InitEBCDIC()->%d\n", rv);
160 rv = apr_MD5InitEBCDIC((*hdbm)->to_ascii);
162 fprintf(stderr, "apr_MD5InitEBCDIC()->%d\n", rv);
165 #endif /*APR_CHARSET_EBCDIC*/
167 /* Set MD5 as default */
168 (*hdbm)->alg = ALG_APMD5;
169 (*hdbm)->type = "default";
173 static apr_status_t htdbm_open(htdbm_t *htdbm)
176 return apr_dbm_open_ex(&htdbm->dbm, htdbm->type, htdbm->filename, APR_DBM_RWCREATE,
177 APR_OS_DEFAULT, htdbm->pool);
179 return apr_dbm_open_ex(&htdbm->dbm, htdbm->type, htdbm->filename,
180 htdbm->rdonly ? APR_DBM_READONLY : APR_DBM_READWRITE,
181 APR_OS_DEFAULT, htdbm->pool);
184 static apr_status_t htdbm_save(htdbm_t *htdbm, int *changed)
186 apr_datum_t key, val;
188 if (!htdbm->username)
191 key.dptr = htdbm->username;
192 key.dsize = strlen(htdbm->username);
193 if (apr_dbm_exists(htdbm->dbm, key))
196 val.dsize = strlen(htdbm->userpass);
198 val.dptr = htdbm->userpass;
200 val.dptr = apr_pstrcat(htdbm->pool, htdbm->userpass, ":",
201 htdbm->comment, NULL);
202 val.dsize += (strlen(htdbm->comment) + 1);
204 return apr_dbm_store(htdbm->dbm, key, val);
207 static apr_status_t htdbm_del(htdbm_t *htdbm)
211 key.dptr = htdbm->username;
212 key.dsize = strlen(htdbm->username);
213 if (!apr_dbm_exists(htdbm->dbm, key))
216 return apr_dbm_delete(htdbm->dbm, key);
219 static apr_status_t htdbm_verify(htdbm_t *htdbm)
221 apr_datum_t key, val;
222 char pwd[MAX_STRING_LEN] = {0};
225 key.dptr = htdbm->username;
226 key.dsize = strlen(htdbm->username);
227 if (!apr_dbm_exists(htdbm->dbm, key))
229 if (apr_dbm_fetch(htdbm->dbm, key, &val) != APR_SUCCESS)
231 rec = apr_pstrndup(htdbm->pool, val.dptr, val.dsize);
232 cmnt = strchr(rec, ':');
234 strncpy(pwd, rec, cmnt - rec);
237 return apr_password_validate(htdbm->userpass, pwd);
240 static apr_status_t htdbm_list(htdbm_t *htdbm)
243 apr_datum_t key, val;
245 char kb[MAX_STRING_LEN];
248 rv = apr_dbm_firstkey(htdbm->dbm, &key);
249 if (rv != APR_SUCCESS) {
250 fprintf(stderr, "Empty database -- %s\n", htdbm->filename);
253 rec = apr_pcalloc(htdbm->pool, HUGE_STRING_LEN);
255 fprintf(stderr, "Dumping records from database -- %s\n", htdbm->filename);
256 fprintf(stderr, " %-32sComment\n", "Username");
257 while (key.dptr != NULL) {
258 rv = apr_dbm_fetch(htdbm->dbm, key, &val);
259 if (rv != APR_SUCCESS) {
260 fprintf(stderr, "Failed getting data from %s\n", htdbm->filename);
263 strncpy(kb, key.dptr, key.dsize);
264 kb[key.dsize] = '\0';
265 fprintf(stderr, " %-32s", kb);
266 strncpy(rec, val.dptr, val.dsize);
267 rec[val.dsize] = '\0';
268 cmnt = strchr(rec, ':');
270 fprintf(stderr, "%s", cmnt + 1);
271 fprintf(stderr, "\n");
272 rv = apr_dbm_nextkey(htdbm->dbm, &key);
273 if (rv != APR_SUCCESS)
274 fprintf(stderr, "Failed getting NextKey\n");
278 fprintf(stderr, "Total #records : %d\n", i);
282 static void to64(char *s, unsigned long v, int n)
284 static unsigned char itoa64[] = /* 0 ... 63 => ASCII - 64 */
285 "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
288 *s++ = itoa64[v&0x3f];
293 static apr_status_t htdbm_make(htdbm_t *htdbm)
295 char cpw[MAX_STRING_LEN];
298 switch (htdbm->alg) {
300 /* XXX cpw >= 28 + strlen(sha1) chars - fixed len SHA */
301 apr_sha1_base64(htdbm->userpass,strlen(htdbm->userpass),cpw);
305 (void) srand((int) time((time_t *) NULL));
306 to64(&salt[0], rand(), 8);
308 apr_md5_encode((const char *)htdbm->userpass, (const char *)salt,
312 /* XXX this len limitation is not in sync with any HTTPd len. */
313 apr_cpystrn(cpw,htdbm->userpass,sizeof(cpw));
315 fprintf(stderr, "Warning: Plain text passwords aren't supported by the "
316 "server on this platform!\n");
321 (void) srand((int) time((time_t *) NULL));
322 to64(&salt[0], rand(), 8);
324 apr_cpystrn(cpw, crypt(htdbm->userpass, salt), sizeof(cpw) - 1);
325 fprintf(stderr, "CRYPT is now deprecated, use MD5 instead!\n");
330 htdbm->userpass = apr_pstrdup(htdbm->pool, cpw);
334 static apr_status_t htdbm_valid_username(htdbm_t *htdbm)
336 if (!htdbm->username || (strlen(htdbm->username) > 64) || (strlen(htdbm->username) < 1)) {
337 fprintf(stderr, "Invalid username length\n");
340 if (strchr(htdbm->username, ':')) {
341 fprintf(stderr, "Username contains invalid characters\n");
347 static void htdbm_usage(void)
351 #define CRYPT_OPTION "d"
353 #define CRYPT_OPTION ""
355 fprintf(stderr, "htdbm -- program for manipulating DBM password databases.\n\n");
356 fprintf(stderr, "Usage: htdbm [-cm"CRYPT_OPTION"pstvx] [-TDBTYPE] database username\n");
357 fprintf(stderr, " -b[cm"CRYPT_OPTION"ptsv] [-TDBTYPE] database username password\n");
358 fprintf(stderr, " -n[m"CRYPT_OPTION"pst] username\n");
359 fprintf(stderr, " -nb[m"CRYPT_OPTION"pst] username password\n");
360 fprintf(stderr, " -v[m"CRYPT_OPTION"ps] [-TDBTYPE] database username\n");
361 fprintf(stderr, " -vb[m"CRYPT_OPTION"ps] [-TDBTYPE] database username password\n");
362 fprintf(stderr, " -x[m"CRYPT_OPTION"ps] [-TDBTYPE] database username\n");
363 fprintf(stderr, " -l [-TDBTYPE] database\n");
364 fprintf(stderr, "Options:\n");
365 fprintf(stderr, " -b Use the password from the command line rather "
366 "than prompting for it.\n");
367 fprintf(stderr, " -c Create a new database.\n");
368 fprintf(stderr, " -n Don't update database; display results on stdout.\n");
369 fprintf(stderr, " -m Force MD5 encryption of the password (default).\n");
371 fprintf(stderr, " -d Force CRYPT encryption of the password (now deprecated).\n");
373 fprintf(stderr, " -p Do not encrypt the password (plaintext).\n");
374 fprintf(stderr, " -s Force SHA encryption of the password.\n");
375 fprintf(stderr, " -T DBM Type (SDBM|GDBM|DB|default).\n");
376 fprintf(stderr, " -l Display usernames from database on stdout.\n");
377 fprintf(stderr, " -t The last param is username comment.\n");
378 fprintf(stderr, " -v Verify the username/password.\n");
379 fprintf(stderr, " -x Remove the username record from database.\n");
385 int main(int argc, const char * const argv[])
390 char pwi[MAX_STRING_LEN];
391 char pwc[MAX_STRING_LEN];
392 char errbuf[MAX_STRING_LEN];
398 int pwd_supplied = 0;
400 int cmd = HTDBM_MAKE;
404 apr_app_initialize(&argc, &argv, NULL);
407 if ((rv = htdbm_init(&pool, &h)) != APR_SUCCESS) {
408 fprintf(stderr, "Unable to initialize htdbm terminating!\n");
409 apr_strerror(rv, errbuf, sizeof(errbuf));
413 * Preliminary check to make sure they provided at least
414 * three arguments, we'll do better argument checking as
415 * we parse the command line.
420 * Go through the argument list and pick out any options. They
421 * have to precede any other arguments.
423 for (i = 1; i < argc; i++) {
428 while (*++arg != '\0') {
455 h->type = apr_pstrdup(h->pool, ++arg);
458 --arg; /* so incrementing this in the loop with find a null */
489 * Make sure we still have exactly the right number of arguments left
490 * (the filename, the username, and possibly the password if -b was
493 if ((argc - i) != args_left)
499 h->filename = apr_pstrdup(h->pool, argv[i]);
500 if ((rv = htdbm_open(h)) != APR_SUCCESS) {
501 fprintf(stderr, "Error opening database %s\n", argv[i]);
502 apr_strerror(rv, errbuf, sizeof(errbuf));
503 fprintf(stderr,"%s\n",errbuf);
508 h->username = apr_pstrdup(pool, argv[i+1]);
509 if (htdbm_valid_username(h) != APR_SUCCESS)
513 h->userpass = apr_pstrdup(pool, argv[i+2]);
517 if (apr_password_get("Enter password : ", pwi, &l) != APR_SUCCESS) {
518 fprintf(stderr, "Password too long\n");
522 if (apr_password_get("Re-type password : ", pwc, &l) != APR_SUCCESS) {
523 fprintf(stderr, "Password too long\n");
526 if (strcmp(pwi, pwc) != 0) {
527 fprintf(stderr, "Password verification error\n");
528 exit(ERR_PWMISMATCH);
531 h->userpass = apr_pstrdup(pool, pwi);
533 if (need_cmnt && pwd_supplied)
534 h->comment = apr_pstrdup(pool, argv[i+3]);
536 h->comment = apr_pstrdup(pool, argv[i+2]);
540 if ((rv = htdbm_verify(h)) != APR_SUCCESS) {
541 if(rv == APR_ENOENT) {
542 fprintf(stderr, "The user '%s' could not be found in database\n", h->username);
546 fprintf(stderr, "Password mismatch for user '%s'\n", h->username);
547 exit(ERR_PWMISMATCH);
551 fprintf(stderr, "Password validated for user '%s'\n", h->username);
554 if (htdbm_del(h) != APR_SUCCESS) {
555 fprintf(stderr, "Cannot find user '%s' in database\n", h->username);
569 if (need_file && !h->rdonly) {
570 if ((rv = htdbm_save(h, &changed)) != APR_SUCCESS) {
571 apr_strerror(rv, errbuf, sizeof(errbuf));
574 fprintf(stdout, "Database %s %s.\n", h->filename,
575 h->create ? "created" : (changed ? "modified" : "updated"));
577 if (cmd == HTDBM_NOFILE) {
579 fprintf(stderr, "%s:%s\n", h->username, h->userpass);
582 fprintf(stderr, "%s:%s:%s\n", h->username, h->userpass,
588 return 0; /* Suppress compiler warning. */