1 /* crypto/ui/ui_lib.c -*- mode:C; c-file-style: "eay" -*- */
2 /* Written by Richard Levitte (levitte@stacken.kth.se) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * openssl-core@openssl.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
60 #include <openssl/e_os2.h>
61 #include <openssl/buffer.h>
62 #include <openssl/ui.h>
63 #include <openssl/err.h>
66 IMPLEMENT_STACK_OF(UI_STRING_ST)
68 static const UI_METHOD *default_UI_meth=NULL;
69 static int ui_meth_num=0;
70 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ui_meth=NULL;
74 return(UI_new_method(NULL));
77 UI *UI_new_method(const UI_METHOD *method)
81 ret=(UI *)OPENSSL_malloc(sizeof(UI));
84 UIerr(UI_F_UI_NEW_METHOD,ERR_R_MALLOC_FAILURE);
88 ret->meth=UI_get_default_method();
94 CRYPTO_new_ex_data(ui_meth,ret,&ret->ex_data);
98 static void free_string(UI_STRING *uis)
100 if (uis->flags & OUT_STRING_FREEABLE)
101 OPENSSL_free((char *)uis->out_string);
109 sk_UI_STRING_pop_free(ui->strings,free_string);
113 static int allocate_string_stack(UI *ui)
115 if (ui->strings == NULL)
117 ui->strings=sk_UI_STRING_new_null();
118 if (ui->strings == NULL)
126 static int general_allocate_string(UI *ui, const char *prompt,
127 int prompt_freeable, enum UI_string_types type, int input_flags,
128 char *result_buf, int minsize, int maxsize, const char *test_buf)
134 UIerr(UI_F_GENERAL_ALLOCATE_STRING,ERR_R_PASSED_NULL_PARAMETER);
136 else if (allocate_string_stack(ui) >= 0)
138 UI_STRING *s=(UI_STRING *)OPENSSL_malloc(sizeof(UI_STRING));
139 s->out_string=prompt;
140 s->flags=prompt_freeable ? OUT_STRING_FREEABLE : 0;
141 s->input_flags=input_flags;
143 s->result_buf=result_buf;
144 s->result_minsize=minsize;
145 s->result_maxsize=maxsize;
146 s->test_buf=test_buf;
147 ret=sk_UI_STRING_push(ui->strings, s);
152 /* Returns the index to the place in the stack or 0 for error. Uses a
153 direct reference to the prompt. */
154 int UI_add_input_string(UI *ui, const char *prompt, int flags,
155 char *result_buf, int minsize, int maxsize)
157 return general_allocate_string(ui, prompt, 0,
158 UIT_PROMPT, flags, result_buf, minsize, maxsize, NULL);
161 /* Same as UI_add_input_string(), excepts it takes a copy of the prompt */
162 int UI_dup_input_string(UI *ui, const char *prompt, int flags,
163 char *result_buf, int minsize, int maxsize)
165 char *prompt_copy=NULL;
169 prompt_copy=BUF_strdup(prompt);
170 if (prompt_copy == NULL)
172 UIerr(UI_F_UI_DUP_INPUT_STRING,ERR_R_MALLOC_FAILURE);
177 return general_allocate_string(ui, prompt_copy, 1,
178 UIT_PROMPT, flags, result_buf, minsize, maxsize, NULL);
181 int UI_add_verify_string(UI *ui, const char *prompt, int flags,
182 char *result_buf, int minsize, int maxsize, const char *test_buf)
184 return general_allocate_string(ui, prompt, 0,
185 UIT_VERIFY, flags, result_buf, minsize, maxsize, test_buf);
188 int UI_dup_verify_string(UI *ui, const char *prompt, int flags,
189 char *result_buf, int minsize, int maxsize, const char *test_buf)
191 char *prompt_copy=NULL;
195 prompt_copy=BUF_strdup(prompt);
196 if (prompt_copy == NULL)
198 UIerr(UI_F_UI_DUP_VERIFY_STRING,ERR_R_MALLOC_FAILURE);
203 return general_allocate_string(ui, prompt_copy, 1,
204 UIT_VERIFY, flags, result_buf, minsize, maxsize, test_buf);
207 int UI_add_info_string(UI *ui, const char *text)
209 return general_allocate_string(ui, text, 0, UIT_INFO, 0, NULL, 0, 0,
213 int UI_dup_info_string(UI *ui, const char *text)
215 char *text_copy=NULL;
219 text_copy=BUF_strdup(text);
220 if (text_copy == NULL)
222 UIerr(UI_F_UI_DUP_INFO_STRING,ERR_R_MALLOC_FAILURE);
227 return general_allocate_string(ui, text_copy, 1, UIT_INFO, 0, NULL, 0, 0,
231 int UI_add_error_string(UI *ui, const char *text)
233 return general_allocate_string(ui, text, 0, UIT_ERROR, 0, NULL, 0, 0,
237 int UI_dup_error_string(UI *ui, const char *text)
239 char *text_copy=NULL;
243 text_copy=BUF_strdup(text);
244 if (text_copy == NULL)
246 UIerr(UI_F_UI_DUP_ERROR_STRING,ERR_R_MALLOC_FAILURE);
250 return general_allocate_string(ui, text_copy, 1, UIT_ERROR, 0, NULL,
254 char *UI_construct_prompt(UI *ui, const char *object_desc,
255 const char *object_name)
259 if (ui->meth->ui_construct_prompt)
260 prompt = ui->meth->ui_construct_prompt(ui,
261 object_desc, object_name);
264 char prompt1[] = "Enter ";
265 char prompt2[] = " for ";
266 char prompt3[] = ":";
269 if (object_desc == NULL)
271 len = sizeof(prompt1) - 1 + strlen(object_desc);
273 len += sizeof(prompt2) - 1 + strlen(object_name);
274 len += sizeof(prompt3) - 1;
276 prompt = (char *)OPENSSL_malloc(len + 1);
277 strcpy(prompt, prompt1);
278 strcat(prompt, object_desc);
281 strcat(prompt, prompt2);
282 strcat(prompt, object_name);
284 strcat(prompt, prompt3);
289 void *UI_add_user_data(UI *ui, void *user_data)
291 void *old_data = ui->user_data;
292 ui->user_data = user_data;
296 void *UI_get0_user_data(UI *ui)
298 return ui->user_data;
301 const char *UI_get0_result(UI *ui, int i)
305 UIerr(UI_F_UI_GET0_RESULT,UI_R_INDEX_TOO_SMALL);
308 if (i >= sk_UI_STRING_num(ui->strings))
310 UIerr(UI_F_UI_GET0_RESULT,UI_R_INDEX_TOO_LARGE);
313 return UI_get0_result_string(sk_UI_STRING_value(ui->strings, i));
316 int UI_process(UI *ui)
320 if (ui->meth->ui_open_session && !ui->meth->ui_open_session(ui))
323 for(i=0; i<sk_UI_STRING_num(ui->strings); i++)
325 if (ui->meth->ui_write_string
326 && !ui->meth->ui_write_string(ui,
327 sk_UI_STRING_value(ui->strings, i)))
334 if (ui->meth->ui_flush)
335 switch(ui->meth->ui_flush(ui))
337 case -1: /* Interrupt/Cancel/something... */
343 default: /* Success */
348 for(i=0; i<sk_UI_STRING_num(ui->strings); i++)
350 if (ui->meth->ui_read_string)
352 switch(ui->meth->ui_read_string(ui,
353 sk_UI_STRING_value(ui->strings, i)))
355 case -1: /* Interrupt/Cancel/something... */
361 default: /* Success */
368 if (ui->meth->ui_close_session && !ui->meth->ui_close_session(ui))
373 int UI_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
374 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
377 return(CRYPTO_get_ex_new_index(ui_meth_num-1,
378 &ui_meth,argl,argp,new_func,dup_func,free_func));
381 int UI_set_ex_data(UI *r, int idx, void *arg)
383 return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
386 void *UI_get_ex_data(UI *r, int idx)
388 return(CRYPTO_get_ex_data(&r->ex_data,idx));
391 void UI_set_default_method(const UI_METHOD *meth)
393 default_UI_meth=meth;
396 const UI_METHOD *UI_get_default_method(void)
398 if (default_UI_meth == NULL)
400 default_UI_meth=UI_OpenSSL();
402 return default_UI_meth;
405 const UI_METHOD *UI_get_method(UI *ui)
410 const UI_METHOD *UI_set_method(UI *ui, const UI_METHOD *meth)
417 UI_METHOD *UI_create_method(char *name)
419 UI_METHOD *ui_method = (UI_METHOD *)OPENSSL_malloc(sizeof(UI_METHOD));
422 memset(ui_method, 0, sizeof(*ui_method));
423 ui_method->name = BUF_strdup(name);
427 /* BIG FSCKING WARNING!!!! If you use this on a statically allocated method
428 (that is, it hasn't been allocated using UI_create_method(), you deserve
429 anything Murphy can throw at you and more! You have been warned. */
430 void UI_destroy_method(UI_METHOD *ui_method)
432 OPENSSL_free(ui_method->name);
433 ui_method->name = NULL;
434 OPENSSL_free(ui_method);
437 int UI_method_set_opener(UI_METHOD *method, int (*opener)(UI *ui))
441 method->ui_open_session = opener;
448 int UI_method_set_writer(UI_METHOD *method, int (*writer)(UI *ui, UI_STRING *uis))
452 method->ui_write_string = writer;
459 int UI_method_set_flusher(UI_METHOD *method, int (*flusher)(UI *ui))
463 method->ui_flush = flusher;
470 int UI_method_set_reader(UI_METHOD *method, int (*reader)(UI *ui, UI_STRING *uis))
474 method->ui_read_string = reader;
481 int UI_method_set_closer(UI_METHOD *method, int (*closer)(UI *ui))
485 method->ui_close_session = closer;
492 int (*UI_method_get_opener(UI_METHOD *method))(UI*)
495 return method->ui_open_session;
500 int (*UI_method_get_writer(UI_METHOD *method))(UI*,UI_STRING*)
503 return method->ui_write_string;
508 int (*UI_method_get_reader(UI_METHOD *method))(UI*,UI_STRING*)
511 return method->ui_read_string;
516 int (*UI_method_get_closer(UI_METHOD *method))(UI*)
519 return method->ui_close_session;
524 enum UI_string_types UI_get_string_type(UI_STRING *uis)
531 int UI_get_input_flags(UI_STRING *uis)
535 return uis->input_flags;
538 const char *UI_get0_output_string(UI_STRING *uis)
542 return uis->out_string;
545 const char *UI_get0_result_string(UI_STRING *uis)
553 return uis->result_buf;
559 const char *UI_get0_test_string(UI_STRING *uis)
563 return uis->test_buf;
566 int UI_get_result_minsize(UI_STRING *uis)
570 return uis->result_minsize;
573 int UI_get_result_maxsize(UI_STRING *uis)
577 return uis->result_maxsize;
580 int UI_set_result(UI_STRING *uis, const char *result)
582 int l = strlen(result);
586 if (l < uis->result_minsize)
588 UIerr(UI_F_UI_SET_RESULT,UI_R_RESULT_TOO_SMALL);
591 if (l > uis->result_maxsize)
593 UIerr(UI_F_UI_SET_RESULT,UI_R_RESULT_TOO_LARGE);
597 if (!uis->result_buf)
599 uis->result_buf = OPENSSL_malloc(uis->result_maxsize+1);
602 if (!uis->result_buf)
604 UIerr(UI_F_UI_NEW_METHOD,ERR_R_MALLOC_FAILURE);
608 strcpy(uis->result_buf, result);