Run util/openssl-format-source -v -c .
Reviewed-by: Tim Hudson <tjh@openssl.org>
This commit is contained in:
@@ -7,7 +7,7 @@
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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@@ -55,335 +55,331 @@
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#include "eng_int.h"
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/* When querying a ENGINE-specific control command's 'description', this string
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* is used if the ENGINE_CMD_DEFN has cmd_desc set to NULL. */
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/*
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* When querying a ENGINE-specific control command's 'description', this
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* string is used if the ENGINE_CMD_DEFN has cmd_desc set to NULL.
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*/
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static const char *int_no_description = "";
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/* These internal functions handle 'CMD'-related control commands when the
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/*
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* These internal functions handle 'CMD'-related control commands when the
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* ENGINE in question has asked us to take care of it (ie. the ENGINE did not
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* set the ENGINE_FLAGS_MANUAL_CMD_CTRL flag. */
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* set the ENGINE_FLAGS_MANUAL_CMD_CTRL flag.
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*/
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static int int_ctrl_cmd_is_null(const ENGINE_CMD_DEFN *defn)
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{
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if((defn->cmd_num == 0) || (defn->cmd_name == NULL))
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return 1;
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return 0;
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}
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{
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if ((defn->cmd_num == 0) || (defn->cmd_name == NULL))
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return 1;
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return 0;
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}
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static int int_ctrl_cmd_by_name(const ENGINE_CMD_DEFN *defn, const char *s)
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{
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int idx = 0;
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while(!int_ctrl_cmd_is_null(defn) && (strcmp(defn->cmd_name, s) != 0))
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{
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idx++;
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defn++;
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}
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if(int_ctrl_cmd_is_null(defn))
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/* The given name wasn't found */
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return -1;
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return idx;
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}
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{
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int idx = 0;
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while (!int_ctrl_cmd_is_null(defn) && (strcmp(defn->cmd_name, s) != 0)) {
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idx++;
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defn++;
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}
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if (int_ctrl_cmd_is_null(defn))
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/* The given name wasn't found */
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return -1;
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return idx;
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}
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static int int_ctrl_cmd_by_num(const ENGINE_CMD_DEFN *defn, unsigned int num)
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{
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int idx = 0;
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/* NB: It is stipulated that 'cmd_defn' lists are ordered by cmd_num. So
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* our searches don't need to take any longer than necessary. */
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while(!int_ctrl_cmd_is_null(defn) && (defn->cmd_num < num))
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{
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idx++;
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defn++;
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}
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if(defn->cmd_num == num)
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return idx;
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/* The given cmd_num wasn't found */
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return -1;
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}
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{
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int idx = 0;
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/*
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* NB: It is stipulated that 'cmd_defn' lists are ordered by cmd_num. So
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* our searches don't need to take any longer than necessary.
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*/
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while (!int_ctrl_cmd_is_null(defn) && (defn->cmd_num < num)) {
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idx++;
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defn++;
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}
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if (defn->cmd_num == num)
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return idx;
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/* The given cmd_num wasn't found */
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return -1;
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}
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static int int_ctrl_helper(ENGINE *e, int cmd, long i, void *p,
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void (*f)(void))
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{
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int idx;
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char *s = (char *)p;
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/* Take care of the easy one first (eg. it requires no searches) */
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if(cmd == ENGINE_CTRL_GET_FIRST_CMD_TYPE)
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{
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if((e->cmd_defns == NULL) || int_ctrl_cmd_is_null(e->cmd_defns))
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return 0;
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return e->cmd_defns->cmd_num;
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}
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/* One or two commands require that "p" be a valid string buffer */
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if((cmd == ENGINE_CTRL_GET_CMD_FROM_NAME) ||
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(cmd == ENGINE_CTRL_GET_NAME_FROM_CMD) ||
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(cmd == ENGINE_CTRL_GET_DESC_FROM_CMD))
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{
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if(s == NULL)
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{
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ENGINEerr(ENGINE_F_INT_CTRL_HELPER,
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ERR_R_PASSED_NULL_PARAMETER);
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return -1;
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}
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}
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/* Now handle cmd_name -> cmd_num conversion */
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if(cmd == ENGINE_CTRL_GET_CMD_FROM_NAME)
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{
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if((e->cmd_defns == NULL) || ((idx = int_ctrl_cmd_by_name(
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e->cmd_defns, s)) < 0))
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{
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ENGINEerr(ENGINE_F_INT_CTRL_HELPER,
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ENGINE_R_INVALID_CMD_NAME);
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return -1;
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}
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return e->cmd_defns[idx].cmd_num;
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}
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/* For the rest of the commands, the 'long' argument must specify a
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* valie command number - so we need to conduct a search. */
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if((e->cmd_defns == NULL) || ((idx = int_ctrl_cmd_by_num(e->cmd_defns,
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(unsigned int)i)) < 0))
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{
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ENGINEerr(ENGINE_F_INT_CTRL_HELPER,
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ENGINE_R_INVALID_CMD_NUMBER);
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return -1;
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}
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/* Now the logic splits depending on command type */
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switch(cmd)
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{
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case ENGINE_CTRL_GET_NEXT_CMD_TYPE:
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idx++;
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if(int_ctrl_cmd_is_null(e->cmd_defns + idx))
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/* end-of-list */
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return 0;
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else
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return e->cmd_defns[idx].cmd_num;
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case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD:
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return strlen(e->cmd_defns[idx].cmd_name);
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case ENGINE_CTRL_GET_NAME_FROM_CMD:
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return BIO_snprintf(s,strlen(e->cmd_defns[idx].cmd_name) + 1,
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"%s", e->cmd_defns[idx].cmd_name);
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case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD:
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if(e->cmd_defns[idx].cmd_desc)
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return strlen(e->cmd_defns[idx].cmd_desc);
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return strlen(int_no_description);
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case ENGINE_CTRL_GET_DESC_FROM_CMD:
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if(e->cmd_defns[idx].cmd_desc)
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return BIO_snprintf(s,
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strlen(e->cmd_defns[idx].cmd_desc) + 1,
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"%s", e->cmd_defns[idx].cmd_desc);
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return BIO_snprintf(s, strlen(int_no_description) + 1,"%s",
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int_no_description);
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case ENGINE_CTRL_GET_CMD_FLAGS:
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return e->cmd_defns[idx].cmd_flags;
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}
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/* Shouldn't really be here ... */
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ENGINEerr(ENGINE_F_INT_CTRL_HELPER,ENGINE_R_INTERNAL_LIST_ERROR);
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return -1;
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}
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void (*f) (void))
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{
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int idx;
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char *s = (char *)p;
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/* Take care of the easy one first (eg. it requires no searches) */
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if (cmd == ENGINE_CTRL_GET_FIRST_CMD_TYPE) {
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if ((e->cmd_defns == NULL) || int_ctrl_cmd_is_null(e->cmd_defns))
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return 0;
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return e->cmd_defns->cmd_num;
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}
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/* One or two commands require that "p" be a valid string buffer */
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if ((cmd == ENGINE_CTRL_GET_CMD_FROM_NAME) ||
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(cmd == ENGINE_CTRL_GET_NAME_FROM_CMD) ||
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(cmd == ENGINE_CTRL_GET_DESC_FROM_CMD)) {
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if (s == NULL) {
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ENGINEerr(ENGINE_F_INT_CTRL_HELPER, ERR_R_PASSED_NULL_PARAMETER);
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return -1;
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}
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}
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/* Now handle cmd_name -> cmd_num conversion */
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if (cmd == ENGINE_CTRL_GET_CMD_FROM_NAME) {
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if ((e->cmd_defns == NULL)
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|| ((idx = int_ctrl_cmd_by_name(e->cmd_defns, s)) < 0)) {
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ENGINEerr(ENGINE_F_INT_CTRL_HELPER, ENGINE_R_INVALID_CMD_NAME);
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return -1;
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}
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return e->cmd_defns[idx].cmd_num;
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}
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/*
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* For the rest of the commands, the 'long' argument must specify a valie
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* command number - so we need to conduct a search.
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*/
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if ((e->cmd_defns == NULL) || ((idx = int_ctrl_cmd_by_num(e->cmd_defns,
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(unsigned int)
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i)) < 0)) {
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ENGINEerr(ENGINE_F_INT_CTRL_HELPER, ENGINE_R_INVALID_CMD_NUMBER);
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return -1;
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}
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/* Now the logic splits depending on command type */
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switch (cmd) {
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case ENGINE_CTRL_GET_NEXT_CMD_TYPE:
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idx++;
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if (int_ctrl_cmd_is_null(e->cmd_defns + idx))
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/* end-of-list */
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return 0;
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else
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return e->cmd_defns[idx].cmd_num;
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case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD:
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return strlen(e->cmd_defns[idx].cmd_name);
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case ENGINE_CTRL_GET_NAME_FROM_CMD:
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return BIO_snprintf(s, strlen(e->cmd_defns[idx].cmd_name) + 1,
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"%s", e->cmd_defns[idx].cmd_name);
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case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD:
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if (e->cmd_defns[idx].cmd_desc)
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return strlen(e->cmd_defns[idx].cmd_desc);
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return strlen(int_no_description);
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case ENGINE_CTRL_GET_DESC_FROM_CMD:
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if (e->cmd_defns[idx].cmd_desc)
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return BIO_snprintf(s,
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strlen(e->cmd_defns[idx].cmd_desc) + 1,
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"%s", e->cmd_defns[idx].cmd_desc);
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return BIO_snprintf(s, strlen(int_no_description) + 1, "%s",
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int_no_description);
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case ENGINE_CTRL_GET_CMD_FLAGS:
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return e->cmd_defns[idx].cmd_flags;
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}
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/* Shouldn't really be here ... */
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ENGINEerr(ENGINE_F_INT_CTRL_HELPER, ENGINE_R_INTERNAL_LIST_ERROR);
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return -1;
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}
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int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
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{
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int ctrl_exists, ref_exists;
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if(e == NULL)
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{
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ENGINEerr(ENGINE_F_ENGINE_CTRL,ERR_R_PASSED_NULL_PARAMETER);
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return 0;
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}
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CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
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ref_exists = ((e->struct_ref > 0) ? 1 : 0);
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CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
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ctrl_exists = ((e->ctrl == NULL) ? 0 : 1);
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if(!ref_exists)
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{
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ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_REFERENCE);
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return 0;
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}
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/* Intercept any "root-level" commands before trying to hand them on to
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* ctrl() handlers. */
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switch(cmd)
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{
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case ENGINE_CTRL_HAS_CTRL_FUNCTION:
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return ctrl_exists;
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case ENGINE_CTRL_GET_FIRST_CMD_TYPE:
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case ENGINE_CTRL_GET_NEXT_CMD_TYPE:
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case ENGINE_CTRL_GET_CMD_FROM_NAME:
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case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD:
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case ENGINE_CTRL_GET_NAME_FROM_CMD:
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case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD:
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case ENGINE_CTRL_GET_DESC_FROM_CMD:
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case ENGINE_CTRL_GET_CMD_FLAGS:
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if(ctrl_exists && !(e->flags & ENGINE_FLAGS_MANUAL_CMD_CTRL))
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return int_ctrl_helper(e,cmd,i,p,f);
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if(!ctrl_exists)
|
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{
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ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_CONTROL_FUNCTION);
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/* For these cmd-related functions, failure is indicated
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* by a -1 return value (because 0 is used as a valid
|
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* return in some places). */
|
||||
return -1;
|
||||
}
|
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default:
|
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break;
|
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}
|
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/* Anything else requires a ctrl() handler to exist. */
|
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if(!ctrl_exists)
|
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{
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ENGINEerr(ENGINE_F_ENGINE_CTRL,ENGINE_R_NO_CONTROL_FUNCTION);
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return 0;
|
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}
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return e->ctrl(e, cmd, i, p, f);
|
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}
|
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int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
|
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{
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int ctrl_exists, ref_exists;
|
||||
if (e == NULL) {
|
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ENGINEerr(ENGINE_F_ENGINE_CTRL, ERR_R_PASSED_NULL_PARAMETER);
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return 0;
|
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}
|
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CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
|
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ref_exists = ((e->struct_ref > 0) ? 1 : 0);
|
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CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
|
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ctrl_exists = ((e->ctrl == NULL) ? 0 : 1);
|
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if (!ref_exists) {
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ENGINEerr(ENGINE_F_ENGINE_CTRL, ENGINE_R_NO_REFERENCE);
|
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return 0;
|
||||
}
|
||||
/*
|
||||
* Intercept any "root-level" commands before trying to hand them on to
|
||||
* ctrl() handlers.
|
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*/
|
||||
switch (cmd) {
|
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case ENGINE_CTRL_HAS_CTRL_FUNCTION:
|
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return ctrl_exists;
|
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case ENGINE_CTRL_GET_FIRST_CMD_TYPE:
|
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case ENGINE_CTRL_GET_NEXT_CMD_TYPE:
|
||||
case ENGINE_CTRL_GET_CMD_FROM_NAME:
|
||||
case ENGINE_CTRL_GET_NAME_LEN_FROM_CMD:
|
||||
case ENGINE_CTRL_GET_NAME_FROM_CMD:
|
||||
case ENGINE_CTRL_GET_DESC_LEN_FROM_CMD:
|
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case ENGINE_CTRL_GET_DESC_FROM_CMD:
|
||||
case ENGINE_CTRL_GET_CMD_FLAGS:
|
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if (ctrl_exists && !(e->flags & ENGINE_FLAGS_MANUAL_CMD_CTRL))
|
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return int_ctrl_helper(e, cmd, i, p, f);
|
||||
if (!ctrl_exists) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL, ENGINE_R_NO_CONTROL_FUNCTION);
|
||||
/*
|
||||
* For these cmd-related functions, failure is indicated by a -1
|
||||
* return value (because 0 is used as a valid return in some
|
||||
* places).
|
||||
*/
|
||||
return -1;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
/* Anything else requires a ctrl() handler to exist. */
|
||||
if (!ctrl_exists) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL, ENGINE_R_NO_CONTROL_FUNCTION);
|
||||
return 0;
|
||||
}
|
||||
return e->ctrl(e, cmd, i, p, f);
|
||||
}
|
||||
|
||||
int ENGINE_cmd_is_executable(ENGINE *e, int cmd)
|
||||
{
|
||||
int flags;
|
||||
if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, cmd, NULL, NULL)) < 0)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_ENGINE_CMD_IS_EXECUTABLE,
|
||||
ENGINE_R_INVALID_CMD_NUMBER);
|
||||
return 0;
|
||||
}
|
||||
if(!(flags & ENGINE_CMD_FLAG_NO_INPUT) &&
|
||||
!(flags & ENGINE_CMD_FLAG_NUMERIC) &&
|
||||
!(flags & ENGINE_CMD_FLAG_STRING))
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
{
|
||||
int flags;
|
||||
if ((flags =
|
||||
ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, cmd, NULL, NULL)) < 0) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CMD_IS_EXECUTABLE,
|
||||
ENGINE_R_INVALID_CMD_NUMBER);
|
||||
return 0;
|
||||
}
|
||||
if (!(flags & ENGINE_CMD_FLAG_NO_INPUT) &&
|
||||
!(flags & ENGINE_CMD_FLAG_NUMERIC) &&
|
||||
!(flags & ENGINE_CMD_FLAG_STRING))
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
int ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name,
|
||||
long i, void *p, void (*f)(void), int cmd_optional)
|
||||
{
|
||||
int num;
|
||||
long i, void *p, void (*f) (void), int cmd_optional)
|
||||
{
|
||||
int num;
|
||||
|
||||
if((e == NULL) || (cmd_name == NULL))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD,
|
||||
ERR_R_PASSED_NULL_PARAMETER);
|
||||
return 0;
|
||||
}
|
||||
if((e->ctrl == NULL) || ((num = ENGINE_ctrl(e,
|
||||
ENGINE_CTRL_GET_CMD_FROM_NAME,
|
||||
0, (void *)cmd_name, NULL)) <= 0))
|
||||
{
|
||||
/* If the command didn't *have* to be supported, we fake
|
||||
* success. This allows certain settings to be specified for
|
||||
* multiple ENGINEs and only require a change of ENGINE id
|
||||
* (without having to selectively apply settings). Eg. changing
|
||||
* from a hardware device back to the regular software ENGINE
|
||||
* without editing the config file, etc. */
|
||||
if(cmd_optional)
|
||||
{
|
||||
ERR_clear_error();
|
||||
return 1;
|
||||
}
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD,
|
||||
ENGINE_R_INVALID_CMD_NAME);
|
||||
return 0;
|
||||
}
|
||||
/* Force the result of the control command to 0 or 1, for the reasons
|
||||
* mentioned before. */
|
||||
if (ENGINE_ctrl(e, num, i, p, f) > 0)
|
||||
return 1;
|
||||
if ((e == NULL) || (cmd_name == NULL)) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD, ERR_R_PASSED_NULL_PARAMETER);
|
||||
return 0;
|
||||
}
|
||||
if ((e->ctrl == NULL) || ((num = ENGINE_ctrl(e,
|
||||
ENGINE_CTRL_GET_CMD_FROM_NAME,
|
||||
0, (void *)cmd_name,
|
||||
NULL)) <= 0)) {
|
||||
/*
|
||||
* If the command didn't *have* to be supported, we fake success.
|
||||
* This allows certain settings to be specified for multiple ENGINEs
|
||||
* and only require a change of ENGINE id (without having to
|
||||
* selectively apply settings). Eg. changing from a hardware device
|
||||
* back to the regular software ENGINE without editing the config
|
||||
* file, etc.
|
||||
*/
|
||||
if (cmd_optional) {
|
||||
ERR_clear_error();
|
||||
return 1;
|
||||
}
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD, ENGINE_R_INVALID_CMD_NAME);
|
||||
return 0;
|
||||
}
|
||||
/*
|
||||
* Force the result of the control command to 0 or 1, for the reasons
|
||||
* mentioned before.
|
||||
*/
|
||||
if (ENGINE_ctrl(e, num, i, p, f) > 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ENGINE_ctrl_cmd_string(ENGINE *e, const char *cmd_name, const char *arg,
|
||||
int cmd_optional)
|
||||
{
|
||||
int num, flags;
|
||||
long l;
|
||||
char *ptr;
|
||||
if((e == NULL) || (cmd_name == NULL))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ERR_R_PASSED_NULL_PARAMETER);
|
||||
return 0;
|
||||
}
|
||||
if((e->ctrl == NULL) || ((num = ENGINE_ctrl(e,
|
||||
ENGINE_CTRL_GET_CMD_FROM_NAME,
|
||||
0, (void *)cmd_name, NULL)) <= 0))
|
||||
{
|
||||
/* If the command didn't *have* to be supported, we fake
|
||||
* success. This allows certain settings to be specified for
|
||||
* multiple ENGINEs and only require a change of ENGINE id
|
||||
* (without having to selectively apply settings). Eg. changing
|
||||
* from a hardware device back to the regular software ENGINE
|
||||
* without editing the config file, etc. */
|
||||
if(cmd_optional)
|
||||
{
|
||||
ERR_clear_error();
|
||||
return 1;
|
||||
}
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_INVALID_CMD_NAME);
|
||||
return 0;
|
||||
}
|
||||
if(!ENGINE_cmd_is_executable(e, num))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_CMD_NOT_EXECUTABLE);
|
||||
return 0;
|
||||
}
|
||||
if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, num, NULL, NULL)) < 0)
|
||||
{
|
||||
/* Shouldn't happen, given that ENGINE_cmd_is_executable()
|
||||
* returned success. */
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_INTERNAL_LIST_ERROR);
|
||||
return 0;
|
||||
}
|
||||
/* If the command takes no input, there must be no input. And vice
|
||||
* versa. */
|
||||
if(flags & ENGINE_CMD_FLAG_NO_INPUT)
|
||||
{
|
||||
if(arg != NULL)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_COMMAND_TAKES_NO_INPUT);
|
||||
return 0;
|
||||
}
|
||||
/* We deliberately force the result of ENGINE_ctrl() to 0 or 1
|
||||
* rather than returning it as "return data". This is to ensure
|
||||
* usage of these commands is consistent across applications and
|
||||
* that certain applications don't understand it one way, and
|
||||
* others another. */
|
||||
if(ENGINE_ctrl(e, num, 0, (void *)arg, NULL) > 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
/* So, we require input */
|
||||
if(arg == NULL)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_COMMAND_TAKES_INPUT);
|
||||
return 0;
|
||||
}
|
||||
/* If it takes string input, that's easy */
|
||||
if(flags & ENGINE_CMD_FLAG_STRING)
|
||||
{
|
||||
/* Same explanation as above */
|
||||
if(ENGINE_ctrl(e, num, 0, (void *)arg, NULL) > 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
/* If it doesn't take numeric either, then it is unsupported for use in
|
||||
* a config-setting situation, which is what this function is for. This
|
||||
* should never happen though, because ENGINE_cmd_is_executable() was
|
||||
* used. */
|
||||
if(!(flags & ENGINE_CMD_FLAG_NUMERIC))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_INTERNAL_LIST_ERROR);
|
||||
return 0;
|
||||
}
|
||||
l = strtol(arg, &ptr, 10);
|
||||
if((arg == ptr) || (*ptr != '\0'))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER);
|
||||
return 0;
|
||||
}
|
||||
/* Force the result of the control command to 0 or 1, for the reasons
|
||||
* mentioned before. */
|
||||
if(ENGINE_ctrl(e, num, l, NULL, NULL) > 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
int cmd_optional)
|
||||
{
|
||||
int num, flags;
|
||||
long l;
|
||||
char *ptr;
|
||||
if ((e == NULL) || (cmd_name == NULL)) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ERR_R_PASSED_NULL_PARAMETER);
|
||||
return 0;
|
||||
}
|
||||
if ((e->ctrl == NULL) || ((num = ENGINE_ctrl(e,
|
||||
ENGINE_CTRL_GET_CMD_FROM_NAME,
|
||||
0, (void *)cmd_name,
|
||||
NULL)) <= 0)) {
|
||||
/*
|
||||
* If the command didn't *have* to be supported, we fake success.
|
||||
* This allows certain settings to be specified for multiple ENGINEs
|
||||
* and only require a change of ENGINE id (without having to
|
||||
* selectively apply settings). Eg. changing from a hardware device
|
||||
* back to the regular software ENGINE without editing the config
|
||||
* file, etc.
|
||||
*/
|
||||
if (cmd_optional) {
|
||||
ERR_clear_error();
|
||||
return 1;
|
||||
}
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING, ENGINE_R_INVALID_CMD_NAME);
|
||||
return 0;
|
||||
}
|
||||
if (!ENGINE_cmd_is_executable(e, num)) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_CMD_NOT_EXECUTABLE);
|
||||
return 0;
|
||||
}
|
||||
if ((flags =
|
||||
ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, num, NULL, NULL)) < 0) {
|
||||
/*
|
||||
* Shouldn't happen, given that ENGINE_cmd_is_executable() returned
|
||||
* success.
|
||||
*/
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_INTERNAL_LIST_ERROR);
|
||||
return 0;
|
||||
}
|
||||
/*
|
||||
* If the command takes no input, there must be no input. And vice versa.
|
||||
*/
|
||||
if (flags & ENGINE_CMD_FLAG_NO_INPUT) {
|
||||
if (arg != NULL) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_COMMAND_TAKES_NO_INPUT);
|
||||
return 0;
|
||||
}
|
||||
/*
|
||||
* We deliberately force the result of ENGINE_ctrl() to 0 or 1 rather
|
||||
* than returning it as "return data". This is to ensure usage of
|
||||
* these commands is consistent across applications and that certain
|
||||
* applications don't understand it one way, and others another.
|
||||
*/
|
||||
if (ENGINE_ctrl(e, num, 0, (void *)arg, NULL) > 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
/* So, we require input */
|
||||
if (arg == NULL) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_COMMAND_TAKES_INPUT);
|
||||
return 0;
|
||||
}
|
||||
/* If it takes string input, that's easy */
|
||||
if (flags & ENGINE_CMD_FLAG_STRING) {
|
||||
/* Same explanation as above */
|
||||
if (ENGINE_ctrl(e, num, 0, (void *)arg, NULL) > 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
/*
|
||||
* If it doesn't take numeric either, then it is unsupported for use in a
|
||||
* config-setting situation, which is what this function is for. This
|
||||
* should never happen though, because ENGINE_cmd_is_executable() was
|
||||
* used.
|
||||
*/
|
||||
if (!(flags & ENGINE_CMD_FLAG_NUMERIC)) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_INTERNAL_LIST_ERROR);
|
||||
return 0;
|
||||
}
|
||||
l = strtol(arg, &ptr, 10);
|
||||
if ((arg == ptr) || (*ptr != '\0')) {
|
||||
ENGINEerr(ENGINE_F_ENGINE_CTRL_CMD_STRING,
|
||||
ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER);
|
||||
return 0;
|
||||
}
|
||||
/*
|
||||
* Force the result of the control command to 0 or 1, for the reasons
|
||||
* mentioned before.
|
||||
*/
|
||||
if (ENGINE_ctrl(e, num, l, NULL, NULL) > 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
Reference in New Issue
Block a user