1 /* Copyright 1999-2005 The Apache Software Foundation or its licensors, as
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * 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.
17 /******************************************************************************
18 ******************************************************************************
19 * NOTE! This program is not safe as a setuid executable! Do not make it
21 ******************************************************************************
22 *****************************************************************************/
24 * htdigest.c: simple program for manipulating digest passwd file for Apache
26 * by Alexei Kosut, based on htpasswd.c, by Rob McCool
30 #include "apr_file_io.h"
32 #include "apr_lib.h" /* for apr_getpass() */
33 #include "apr_general.h"
34 #include "apr_signal.h"
35 #include "apr_strings.h" /* for apr_pstrdup() */
37 #define APR_WANT_STDIO
38 #define APR_WANT_STRFUNC
41 #if APR_HAVE_SYS_TYPES_H
42 #include <sys/types.h>
53 #if APR_CHARSET_EBCDIC
59 #endif /* APR_CHARSET_EBCDIC */
61 #define MAX_STRING_LEN 256
63 apr_file_t *tfp = NULL;
66 #if APR_CHARSET_EBCDIC
67 apr_xlate_t *to_ascii;
70 static void cleanup_tempfile_and_exit(int rc)
78 static void getword(char *word, char *line, char stop)
82 for (x = 0; ((line[x]) && (line[x] != stop)); x++)
90 while ((line[y++] = line[x++]));
93 static int get_line(char *s, int n, apr_file_t *f)
97 apr_status_t rv = APR_EINVAL;
100 ((rv = apr_file_getc(&ch, f)) == APR_SUCCESS) && (ch != '\n')) {
107 if (rv != APR_SUCCESS)
113 static void putline(apr_file_t *f, char *l)
117 for (x = 0; l[x]; x++)
118 apr_file_putc(l[x], f);
122 static void add_password(const char *user, const char *realm, apr_file_t *f)
125 apr_md5_ctx_t context;
126 unsigned char digest[16];
127 char string[MAX_STRING_LEN];
128 char pwin[MAX_STRING_LEN];
129 char pwv[MAX_STRING_LEN];
131 apr_size_t len = sizeof(pwin);
133 if (apr_password_get("New password: ", pwin, &len) != APR_SUCCESS) {
134 apr_file_printf(errfile, "password too long");
135 cleanup_tempfile_and_exit(5);
138 apr_password_get("Re-type new password: ", pwv, &len);
139 if (strcmp(pwin, pwv) != 0) {
140 apr_file_printf(errfile, "They don't match, sorry.\n");
141 cleanup_tempfile_and_exit(1);
144 apr_file_printf(f, "%s:%s:", user, realm);
147 sprintf(string, "%s:%s:%s", user, realm, pw);
149 apr_md5_init(&context);
150 #if APR_CHARSET_EBCDIC
151 apr_md5_set_xlate(&context, to_ascii);
153 apr_md5_update(&context, (unsigned char *) string, strlen(string));
154 apr_md5_final(digest, &context);
156 for (i = 0; i < 16; i++)
157 apr_file_printf(f, "%02x", digest[i]);
159 apr_file_printf(f, "\n");
162 static void usage(void)
164 apr_file_printf(errfile, "Usage: htdigest [-c] passwordfile realm username\n");
165 apr_file_printf(errfile, "The -c flag creates a new file.\n");
169 static void interrupted(void)
171 apr_file_printf(errfile, "Interrupted.\n");
172 cleanup_tempfile_and_exit(1);
175 static void terminate(void)
183 int main(int argc, const char * const argv[])
187 char tn[] = "htdigest.tmp.XXXXXX";
189 char user[MAX_STRING_LEN];
190 char realm[MAX_STRING_LEN];
191 char line[MAX_STRING_LEN];
192 char l[MAX_STRING_LEN];
193 char w[MAX_STRING_LEN];
194 char x[MAX_STRING_LEN];
197 apr_app_initialize(&argc, &argv, NULL);
199 apr_pool_create(&cntxt, NULL);
200 apr_file_open_stderr(&errfile, cntxt);
202 #if APR_CHARSET_EBCDIC
203 rv = apr_xlate_open(&to_ascii, "ISO-8859-1", APR_DEFAULT_CHARSET, cntxt);
205 apr_file_printf(errfile, "apr_xlate_open(): %s (%d)\n",
206 apr_strerror(rv, line, sizeof(line)), rv);
211 apr_signal(SIGINT, (void (*)(int)) interrupted);
213 if (strcmp(argv[1], "-c"))
215 rv = apr_file_open(&f, argv[2], APR_WRITE | APR_CREATE,
216 APR_OS_DEFAULT, cntxt);
217 if (rv != APR_SUCCESS) {
220 apr_file_printf(errfile, "Could not open passwd file %s for writing: %s\n",
222 apr_strerror(rv, errmsg, sizeof errmsg));
225 apr_file_printf(errfile, "Adding password for %s in realm %s.\n",
227 add_password(argv[4], argv[3], f);
234 if (apr_temp_dir_get((const char**)&dirname, cntxt) != APR_SUCCESS) {
235 apr_file_printf(errfile, "%s: could not determine temp dir\n",
239 dirname = apr_psprintf(cntxt, "%s/%s", dirname, tn);
241 if (apr_file_mktemp(&tfp, dirname, 0, cntxt) != APR_SUCCESS) {
242 apr_file_printf(errfile, "Could not open temp file %s.\n", dirname);
246 if (apr_file_open(&f, argv[1], APR_READ, APR_OS_DEFAULT, cntxt) != APR_SUCCESS) {
247 apr_file_printf(errfile,
248 "Could not open passwd file %s for reading.\n", argv[1]);
249 apr_file_printf(errfile, "Use -c option to create new one.\n");
250 cleanup_tempfile_and_exit(1);
252 apr_cpystrn(user, argv[3], sizeof(user));
253 apr_cpystrn(realm, argv[2], sizeof(realm));
256 while (!(get_line(line, MAX_STRING_LEN, f))) {
257 if (found || (line[0] == '#') || (!line[0])) {
264 if (strcmp(user, w) || strcmp(realm, x)) {
269 apr_file_printf(errfile, "Changing password for user %s in realm %s\n",
271 add_password(user, realm, tfp);
276 apr_file_printf(errfile, "Adding user %s in realm %s\n", user, realm);
277 add_password(user, realm, tfp);
281 /* The temporary file has all the data, just copy it to the new location.
283 if (apr_file_copy(dirname, argv[1], APR_FILE_SOURCE_PERMS, cntxt) !=
285 apr_file_printf(errfile, "%s: unable to update file %s\n",