diff options
Diffstat (limited to 'crypto/ui/ui_lib.c')
| -rw-r--r-- | crypto/ui/ui_lib.c | 506 |
1 files changed, 506 insertions, 0 deletions
diff --git a/crypto/ui/ui_lib.c b/crypto/ui/ui_lib.c new file mode 100644 index 0000000000..132236fe65 --- /dev/null +++ b/crypto/ui/ui_lib.c @@ -0,0 +1,506 @@ +/* crypto/ui/ui_lib.c -*- mode:C; c-file-style: "eay" -*- */ +/* Written by Richard Levitte (levitte@stacken.kth.se) for the OpenSSL + * project 2000. + */ +/* ==================================================================== + * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <string.h> + +#include <openssl/ui.h> +#include <openssl/err.h> +#include "ui_locl.h" + +IMPLEMENT_STACK_OF(UI_STRING_ST) + +static const UI_METHOD *default_UI_meth=NULL; +static int ui_meth_num=0; +static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ui_meth=NULL; + +UI *UI_new(void) + { + return(UI_new_method(NULL)); + } + +UI *UI_new_method(const UI_METHOD *method) + { + UI *ret; + + ret=(UI *)OPENSSL_malloc(sizeof(UI)); + if (ret == NULL) + { + UIerr(UI_F_UI_NEW_METHOD,ERR_R_MALLOC_FAILURE); + return NULL; + } + if (method == NULL) + ret->meth=UI_get_default_method(); + else + ret->meth=method; + + ret->strings=NULL; + return ret; + } + +static void free_string(void *data) + { + UI_STRING *uis = (UI_STRING *)data; + if (uis->flags & OUT_STRING_FREEABLE) + OPENSSL_free((char *)uis->out_string); + OPENSSL_free(uis); + } + +void UI_free(UI *ui) + { + sk_UI_STRING_pop_free(ui->strings,free_string); + OPENSSL_free(ui); + } + +static int allocate_string_stack(UI *ui) + { + if (ui->strings == NULL) + { + ui->strings=sk_UI_STRING_new_null(); + if (ui->strings == NULL) + { + return -1; + } + } + return 0; + } + +static int general_allocate_string(UI *ui, const char *prompt, + int prompt_freeable, enum UI_string_types type, + char *result_buf, int minsize, int maxsize, const char *test_buf) + { + int ret=-1; + + if (prompt == NULL) + { + UIerr(UI_F_GENERAL_ALLOCATE_STRING,ERR_R_PASSED_NULL_PARAMETER); + } + else if (allocate_string_stack(ui) >= 0) + { + UI_STRING *s=(UI_STRING *)OPENSSL_malloc(sizeof(UI_STRING)); + s->out_string=prompt; + s->flags=prompt_freeable ? OUT_STRING_FREEABLE : 0; + s->type=type; + s->result_buf=result_buf; + s->result_minsize=minsize; + s->result_maxsize=maxsize; + s->test_buf=test_buf; + ret=sk_UI_STRING_push(ui->strings, s); + } + return ret; + } + +/* Returns the index to the place in the stack or 0 for error. Uses a + direct reference to the prompt. */ +int UI_add_input_string(UI *ui, const char *prompt, int echo_p, + char *result_buf, int minsize, int maxsize) + { + return general_allocate_string(ui, prompt, 0, + echo_p?UI_STRING_ECHO:UI_STRING_NOECHO, + result_buf, minsize, maxsize, NULL); + } + +/* Same as UI_add_input_string(), excepts it takes a copy of the prompt */ +int UI_dup_input_string(UI *ui, const char *prompt, int echo_p, + char *result_buf, int minsize, int maxsize) + { + char *prompt_copy=NULL; + + if (prompt) + { + prompt_copy=strdup(prompt); + if (prompt_copy == NULL) + { + UIerr(UI_F_UI_DUP_INPUT_STRING,ERR_R_MALLOC_FAILURE); + return 0; + } + } + + return general_allocate_string(ui, prompt, 1, + echo_p?UI_STRING_ECHO:UI_STRING_NOECHO, + result_buf, minsize, maxsize, NULL); + } + +int UI_add_verify_string(UI *ui, const char *prompt, int echo_p, + char *result_buf, int minsize, int maxsize, const char *test_buf) + { + return general_allocate_string(ui, prompt, 0, + echo_p?UI_VERIFY_ECHO:UI_VERIFY_NOECHO, + result_buf, minsize, maxsize, test_buf); + } + +int UI_dup_verify_string(UI *ui, const char *prompt, int echo_p, + char *result_buf, int minsize, int maxsize, const char *test_buf) + { + char *prompt_copy=NULL; + + if (prompt) + { + prompt_copy=strdup(prompt); + if (prompt_copy == NULL) + { + UIerr(UI_F_UI_DUP_VERIFY_STRING,ERR_R_MALLOC_FAILURE); + return -1; + } + } + + return general_allocate_string(ui, prompt, 1, + echo_p?UI_VERIFY_ECHO:UI_VERIFY_NOECHO, + result_buf, minsize, maxsize, test_buf); + } + +int UI_add_info_string(UI *ui, const char *text) + { + return general_allocate_string(ui, text, 0, UI_INFO, NULL, 0, 0, NULL); + } + +int UI_dup_info_string(UI *ui, const char *text) + { + char *text_copy=NULL; + + if (text) + { + text_copy=strdup(text); + if (text_copy == NULL) + { + UIerr(UI_F_UI_DUP_INFO_STRING,ERR_R_MALLOC_FAILURE); + return -1; + } + } + + return general_allocate_string(ui, text, 1, UI_INFO, NULL, 0, 0, NULL); + } + +int UI_add_error_string(UI *ui, const char *text) + { + return general_allocate_string(ui, text, 0, UI_ERROR, NULL, 0, 0, + NULL); + } + +int UI_dup_error_string(UI *ui, const char *text) + { + char *text_copy=NULL; + + if (text) + { + text_copy=strdup(text); + if (text_copy == NULL) + { + UIerr(UI_F_UI_DUP_ERROR_STRING,ERR_R_MALLOC_FAILURE); + return -1; + } + } + return general_allocate_string(ui, text_copy, 1, UI_ERROR, NULL, 0, 0, + NULL); + } + +const char *UI_get0_result(UI *ui, int i) + { + if (i < 0) + { + UIerr(UI_F_UI_GET0_RESULT,UI_R_INDEX_TOO_SMALL); + return NULL; + } + if (i >= sk_UI_STRING_num(ui->strings)) + { + UIerr(UI_F_UI_GET0_RESULT,UI_R_INDEX_TOO_LARGE); + return NULL; + } + return UI_get0_result_string(sk_UI_STRING_value(ui->strings, i)); + } + +int UI_process(UI *ui) + { + int i, ok=0; + + if (ui->meth->ui_open_session && !ui->meth->ui_open_session(ui)) + return -1; + + for(i=0; i<sk_UI_STRING_num(ui->strings); i++) + { + if (ui->meth->ui_write_string + && !ui->meth->ui_write_string(ui, + sk_UI_STRING_value(ui->strings, i))) + { + ok=-1; + goto err; + } + } + + for(i=0; i<sk_UI_STRING_num(ui->strings); i++) + { + if (ui->meth->ui_read_string + && !ui->meth->ui_read_string(ui, + sk_UI_STRING_value(ui->strings, i))) + { + ok=-1; + goto err; + } + } + err: + if (ui->meth->ui_close_session && !ui->meth->ui_close_session(ui)) + return -1; + return ok; + } + +int UI_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, + CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) + { + ui_meth_num++; + return(CRYPTO_get_ex_new_index(ui_meth_num-1, + &ui_meth,argl,argp,new_func,dup_func,free_func)); + } + +int UI_set_ex_data(UI *r, int idx, void *arg) + { + return(CRYPTO_set_ex_data(&r->ex_data,idx,arg)); + } + +void *UI_get_ex_data(UI *r, int idx) + { + return(CRYPTO_get_ex_data(&r->ex_data,idx)); + } + +void UI_set_default_method(const UI_METHOD *meth) + { + default_UI_meth=meth; + } + +const UI_METHOD *UI_get_default_method(void) + { + if (default_UI_meth == NULL) + { + default_UI_meth=UI_OpenSSL(); + } + return default_UI_meth; + } + +const UI_METHOD *UI_get_method(UI *ui) + { + return ui->meth; + } + +const UI_METHOD *UI_set_method(UI *ui, const UI_METHOD *meth) + { + ui->meth=meth; + return ui->meth; + } + + +UI_METHOD *UI_create_method(void) + { + return (UI_METHOD *)OPENSSL_malloc(sizeof(UI_METHOD)); + } + +int UI_method_set_opener(UI_METHOD *method, int (*opener)(UI *ui)) + { + if (method) + { + method->ui_open_session = opener; + return 0; + } + else + return -1; + } + +int UI_method_set_writer(UI_METHOD *method, int (*writer)(UI *ui, UI_STRING *uis)) + { + if (method) + { + method->ui_write_string = writer; + return 0; + } + else + return -1; + } + +int UI_method_set_reader(UI_METHOD *method, int (*reader)(UI *ui, UI_STRING *uis)) + { + if (method) + { + method->ui_read_string = reader; + return 0; + } + else + return -1; + } + +int UI_method_set_closer(UI_METHOD *method, int (*closer)(UI *ui)) + { + if (method) + { + method->ui_close_session = closer; + return 0; + } + else + return -1; + } + +int (*UI_method_get_opener(UI_METHOD *method))(UI*) + { + if (method) + return method->ui_open_session; + else + return NULL; + } + +int (*UI_method_get_writer(UI_METHOD *method))(UI*,UI_STRING*) + { + if (method) + return method->ui_write_string; + else + return NULL; + } + +int (*UI_method_get_reader(UI_METHOD *method))(UI*,UI_STRING*) + { + if (method) + return method->ui_read_string; + else + return NULL; + } + +int (*UI_method_get_closer(UI_METHOD *method))(UI*) + { + if (method) + return method->ui_close_session; + else + return NULL; + } + +enum UI_string_types UI_get_string_type(UI_STRING *uis) + { + if (!uis) + return UI_NONE; + return uis->type; + } + +const char *UI_get0_output_string(UI_STRING *uis) + { + if (!uis) + return NULL; + return uis->out_string; + } + +const char *UI_get0_result_string(UI_STRING *uis) + { + if (!uis) + return NULL; + switch(uis->type) + { + case UI_STRING_ECHO: + case UI_STRING_NOECHO: + case UI_VERIFY_ECHO: + case UI_VERIFY_NOECHO: + return uis->result_buf; + default: + return NULL; + } + } + +const char *UI_get0_test_string(UI_STRING *uis) + { + if (!uis) + return NULL; + return uis->test_buf; + } + +int UI_get_result_minsize(UI_STRING *uis) + { + if (!uis) + return -1; + return uis->result_minsize; + } + +int UI_get_result_maxsize(UI_STRING *uis) + { + if (!uis) + return -1; + return uis->result_maxsize; + } + +int UI_set_result(UI_STRING *uis, char *result) + { + int l = strlen(result); + + if (!uis) + return -1; + if (l < uis->result_minsize) + { + UIerr(UI_F_UI_SET_RESULT,UI_R_RESULT_TOO_SMALL); + return -1; + } + if (l > uis->result_maxsize) + { + UIerr(UI_F_UI_SET_RESULT,UI_R_RESULT_TOO_LARGE); + return -1; + } + + if (!uis->result_buf) + { + uis->result_buf = OPENSSL_malloc(uis->result_maxsize+1); + } + + if (!uis->result_buf) + { + UIerr(UI_F_UI_NEW_METHOD,ERR_R_MALLOC_FAILURE); + return -1; + } + + strcpy(uis->result_buf, result); + return 0; + } |