1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* crypto/engine/eng_ctrl.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * licensing@OpenSSL.org. 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "eng_int.h" 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* When querying a ENGINE-specific control command's 'description', this string 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * is used if the ENGINE_CMD_DEFN has cmd_desc set to NULL. */ 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic const char *int_no_description = ""; 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* These internal functions handle 'CMD'-related control commands when the 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ENGINE in question has asked us to take care of it (ie. the ENGINE did not 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * set the ENGINE_FLAGS_MANUAL_CMD_CTRL flag. */ 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int int_ctrl_cmd_is_null(const ENGINE_CMD_DEFN *defn) 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((defn->cmd_num == 0) || (defn->cmd_name == NULL)) 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int int_ctrl_cmd_by_name(const ENGINE_CMD_DEFN *defn, const char *s) 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int idx = 0; 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while(!int_ctrl_cmd_is_null(defn) && (strcmp(defn->cmd_name, s) != 0)) 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project idx++; 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project defn++; 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(int_ctrl_cmd_is_null(defn)) 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* The given name wasn't found */ 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return idx; 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int int_ctrl_cmd_by_num(const ENGINE_CMD_DEFN *defn, unsigned int num) 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int idx = 0; 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* NB: It is stipulated that 'cmd_defn' lists are ordered by cmd_num. So 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * our searches don't need to take any longer than necessary. */ 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while(!int_ctrl_cmd_is_null(defn) && (defn->cmd_num < num)) 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project idx++; 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project defn++; 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(defn->cmd_num == num) 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return idx; 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* The given cmd_num wasn't found */ 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int int_ctrl_helper(ENGINE *e, int cmd, long i, void *p, 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project void (*f)(void)) 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int idx; 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char *s = (char *)p; 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Take care of the easy one first (eg. it requires no searches) */ 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(cmd == ENGINE_CTRL_GET_FIRST_CMD_TYPE) 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((e->cmd_defns == NULL) || int_ctrl_cmd_is_null(e->cmd_defns)) 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return e->cmd_defns->cmd_num; 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* One or two commands require that "p" be a valid string buffer */ 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((cmd == ENGINE_CTRL_GET_CMD_FROM_NAME) || 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (cmd == ENGINE_CTRL_GET_NAME_FROM_CMD) || 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (cmd == ENGINE_CTRL_GET_DESC_FROM_CMD)) 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(s == NULL) 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_INT_CTRL_HELPER, 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_PASSED_NULL_PARAMETER); 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Now handle cmd_name -> cmd_num conversion */ 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(cmd == ENGINE_CTRL_GET_CMD_FROM_NAME) 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((e->cmd_defns == NULL) || ((idx = int_ctrl_cmd_by_name( 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project e->cmd_defns, s)) < 0)) 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_INT_CTRL_HELPER, 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INVALID_CMD_NAME); 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return e->cmd_defns[idx].cmd_num; 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* For the rest of the commands, the 'long' argument must specify a 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * valie command number - so we need to conduct a search. */ 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((e->cmd_defns == NULL) || ((idx = int_ctrl_cmd_by_num(e->cmd_defns, 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned int)i)) < 0)) 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_INT_CTRL_HELPER, 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INVALID_CMD_NUMBER); 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Now the logic splits depending on command type */ 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project switch(cmd) 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_NEXT_CMD_TYPE: 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project idx++; 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(int_ctrl_cmd_is_null(e->cmd_defns + idx)) 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* end-of-list */ 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return e->cmd_defns[idx].cmd_num; 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD: 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return strlen(e->cmd_defns[idx].cmd_name); 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_NAME_FROM_CMD: 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return BIO_snprintf(s,strlen(e->cmd_defns[idx].cmd_name) + 1, 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "%s", e->cmd_defns[idx].cmd_name); 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD: 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(e->cmd_defns[idx].cmd_desc) 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return strlen(e->cmd_defns[idx].cmd_desc); 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return strlen(int_no_description); 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_DESC_FROM_CMD: 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(e->cmd_defns[idx].cmd_desc) 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return BIO_snprintf(s, 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project strlen(e->cmd_defns[idx].cmd_desc) + 1, 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "%s", e->cmd_defns[idx].cmd_desc); 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return BIO_snprintf(s, strlen(int_no_description) + 1,"%s", 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int_no_description); 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_CMD_FLAGS: 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return e->cmd_defns[idx].cmd_flags; 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Shouldn't really be here ... */ 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_INT_CTRL_HELPER,ENGINE_R_INTERNAL_LIST_ERROR); 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void)) 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ctrl_exists, ref_exists; 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(e == NULL) 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL,ERR_R_PASSED_NULL_PARAMETER); 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ref_exists = ((e->struct_ref > 0) ? 1 : 0); 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctrl_exists = ((e->ctrl == NULL) ? 0 : 1); 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ref_exists) 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_REFERENCE); 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Intercept any "root-level" commands before trying to hand them on to 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ctrl() handlers. */ 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project switch(cmd) 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_HAS_CTRL_FUNCTION: 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ctrl_exists; 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_FIRST_CMD_TYPE: 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_NEXT_CMD_TYPE: 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_CMD_FROM_NAME: 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD: 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_NAME_FROM_CMD: 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD: 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_DESC_FROM_CMD: 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case ENGINE_CTRL_GET_CMD_FLAGS: 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctrl_exists && !(e->flags & ENGINE_FLAGS_MANUAL_CMD_CTRL)) 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return int_ctrl_helper(e,cmd,i,p,f); 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ctrl_exists) 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_CONTROL_FUNCTION); 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* For these cmd-related functions, failure is indicated 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * by a -1 return value (because 0 is used as a valid 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * return in some places). */ 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project default: 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Anything else requires a ctrl() handler to exist. */ 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ctrl_exists) 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_CONTROL_FUNCTION); 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return e->ctrl(e, cmd, i, p, f); 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ENGINE_cmd_is_executable(ENGINE *e, int cmd) 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int flags; 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, cmd, NULL, NULL)) < 0) 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CMD_IS_EXECUTABLE, 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INVALID_CMD_NUMBER); 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!(flags & ENGINE_CMD_FLAG_NO_INPUT) && 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !(flags & ENGINE_CMD_FLAG_NUMERIC) && 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !(flags & ENGINE_CMD_FLAG_STRING)) 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name, 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long i, void *p, void (*f)(void), int cmd_optional) 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int num; 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((e == NULL) || (cmd_name == NULL)) 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD, 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_PASSED_NULL_PARAMETER); 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((e->ctrl == NULL) || ((num = ENGINE_ctrl(e, 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_CTRL_GET_CMD_FROM_NAME, 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 0, (void *)cmd_name, NULL)) <= 0)) 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If the command didn't *have* to be supported, we fake 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * success. This allows certain settings to be specified for 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * multiple ENGINEs and only require a change of ENGINE id 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (without having to selectively apply settings). Eg. changing 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * from a hardware device back to the regular software ENGINE 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * without editing the config file, etc. */ 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(cmd_optional) 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_clear_error(); 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD, 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INVALID_CMD_NAME); 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Force the result of the control command to 0 or 1, for the reasons 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * mentioned before. */ 28398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if (ENGINE_ctrl(e, num, i, p, f) > 0) 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ENGINE_ctrl_cmd_string(ENGINE *e, const char *cmd_name, const char *arg, 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int cmd_optional) 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int num, flags; 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long l; 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char *ptr; 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((e == NULL) || (cmd_name == NULL)) 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_PASSED_NULL_PARAMETER); 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((e->ctrl == NULL) || ((num = ENGINE_ctrl(e, 301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_CTRL_GET_CMD_FROM_NAME, 302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 0, (void *)cmd_name, NULL)) <= 0)) 303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If the command didn't *have* to be supported, we fake 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * success. This allows certain settings to be specified for 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * multiple ENGINEs and only require a change of ENGINE id 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (without having to selectively apply settings). Eg. changing 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * from a hardware device back to the regular software ENGINE 309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * without editing the config file, etc. */ 310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(cmd_optional) 311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_clear_error(); 313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, 316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INVALID_CMD_NAME); 317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ENGINE_cmd_is_executable(e, num)) 320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, 322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_CMD_NOT_EXECUTABLE); 323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, num, NULL, NULL)) < 0) 326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Shouldn't happen, given that ENGINE_cmd_is_executable() 328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * returned success. */ 329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INTERNAL_LIST_ERROR); 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If the command takes no input, there must be no input. And vice 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * versa. */ 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(flags & ENGINE_CMD_FLAG_NO_INPUT) 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(arg != NULL) 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, 340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_COMMAND_TAKES_NO_INPUT); 341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* We deliberately force the result of ENGINE_ctrl() to 0 or 1 344656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * rather than returning it as "return data". This is to ensure 345656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * usage of these commands is consistent across applications and 346656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * that certain applications don't understand it one way, and 347656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * others another. */ 34898d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if(ENGINE_ctrl(e, num, 0, (void *)arg, NULL) > 0) 349656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 350656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 351656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 352656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* So, we require input */ 353656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(arg == NULL) 354656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 355656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, 356656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_COMMAND_TAKES_INPUT); 357656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 358656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 359656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If it takes string input, that's easy */ 360656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(flags & ENGINE_CMD_FLAG_STRING) 361656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 362656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Same explanation as above */ 36398d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if(ENGINE_ctrl(e, num, 0, (void *)arg, NULL) > 0) 364656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 365656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 366656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 367656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If it doesn't take numeric either, then it is unsupported for use in 368656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * a config-setting situation, which is what this function is for. This 369656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * should never happen though, because ENGINE_cmd_is_executable() was 370656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * used. */ 371656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!(flags & ENGINE_CMD_FLAG_NUMERIC)) 372656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 373656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, 374656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INTERNAL_LIST_ERROR); 375656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 376656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 377656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l = strtol(arg, &ptr, 10); 378656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((arg == ptr) || (*ptr != '\0')) 379656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, 381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER); 382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Force the result of the control command to 0 or 1, for the reasons 385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * mentioned before. */ 38698d58bb80c64b02a33662f0ea80351d4a1535267Brian Carlstrom if(ENGINE_ctrl(e, num, l, NULL, NULL) > 0) 387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 390