+static int append_buf(char **buf, const char *s, int *size, int step)
+ {
+ int l = strlen(s);
+
+ if (*buf == NULL)
+ {
+ *size = step;
+ *buf = OPENSSL_malloc(*size);
+ if (*buf == NULL)
+ return 0;
+ **buf = '\0';
+ }
+
+ if (**buf != '\0')
+ l += 2; /* ", " */
+
+ if (strlen(*buf) + strlen(s) >= (unsigned int)*size)
+ {
+ *size += step;
+ *buf = OPENSSL_realloc(*buf, *size);
+ }
+
+ if (*buf == NULL)
+ return 0;
+
+ if (**buf != '\0')
+ BUF_strlcat(*buf, ", ", *size);
+ BUF_strlcat(*buf, s, *size);
+
+ return 1;
+ }
+
+static int util_flags(BIO *bio_out, unsigned int flags, const char *indent)
+ {
+ int started = 0, err = 0;
+ /* Indent before displaying input flags */
+ BIO_printf(bio_out, "%s%s(input flags): ", indent, indent);
+ if(flags == 0)
+ {
+ BIO_printf(bio_out, "<no flags>\n");
+ return 1;
+ }
+ /* If the object is internal, mark it in a way that shows instead of
+ * having it part of all the other flags, even if it really is. */
+ if(flags & ENGINE_CMD_FLAG_INTERNAL)
+ {
+ BIO_printf(bio_out, "[Internal] ");
+ }
+
+ if(flags & ENGINE_CMD_FLAG_NUMERIC)
+ {
+ if(started)
+ {
+ BIO_printf(bio_out, "|");
+ err = 1;
+ }
+ BIO_printf(bio_out, "NUMERIC");
+ started = 1;
+ }
+ /* Now we check that no combinations of the mutually exclusive NUMERIC,
+ * STRING, and NO_INPUT flags have been used. Future flags that can be
+ * OR'd together with these would need to added after these to preserve
+ * the testing logic. */
+ if(flags & ENGINE_CMD_FLAG_STRING)
+ {
+ if(started)
+ {
+ BIO_printf(bio_out, "|");
+ err = 1;
+ }
+ BIO_printf(bio_out, "STRING");
+ started = 1;
+ }
+ if(flags & ENGINE_CMD_FLAG_NO_INPUT)
+ {
+ if(started)
+ {
+ BIO_printf(bio_out, "|");
+ err = 1;
+ }
+ BIO_printf(bio_out, "NO_INPUT");
+ started = 1;
+ }
+ /* Check for unknown flags */
+ flags = flags & ~ENGINE_CMD_FLAG_NUMERIC &
+ ~ENGINE_CMD_FLAG_STRING &
+ ~ENGINE_CMD_FLAG_NO_INPUT &
+ ~ENGINE_CMD_FLAG_INTERNAL;
+ if(flags)
+ {
+ if(started) BIO_printf(bio_out, "|");
+ BIO_printf(bio_out, "<0x%04X>", flags);
+ }
+ if(err)
+ BIO_printf(bio_out, " <illegal flags!>");
+ BIO_printf(bio_out, "\n");
+ return 1;
+ }
+
+static int util_verbose(ENGINE *e, int verbose, BIO *bio_out, const char *indent)
+ {
+ static const int line_wrap = 78;
+ int num;
+ int ret = 0;
+ char *name = NULL;
+ char *desc = NULL;
+ int flags;
+ int xpos = 0;
+ STACK *cmds = NULL;
+ if(!ENGINE_ctrl(e, ENGINE_CTRL_HAS_CTRL_FUNCTION, 0, NULL, NULL) ||
+ ((num = ENGINE_ctrl(e, ENGINE_CTRL_GET_FIRST_CMD_TYPE,
+ 0, NULL, NULL)) <= 0))
+ {
+#if 0
+ BIO_printf(bio_out, "%s<no control commands>\n", indent);
+#endif
+ return 1;
+ }
+
+ cmds = sk_new_null();
+
+ if(!cmds)
+ goto err;
+ do {
+ int len;
+ /* Get the command input flags */
+ if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, num,
+ NULL, NULL)) < 0)
+ goto err;
+ if (!(flags & ENGINE_CMD_FLAG_INTERNAL) || verbose >= 4)
+ {
+ /* Get the command name */
+ if((len = ENGINE_ctrl(e, ENGINE_CTRL_GET_NAME_LEN_FROM_CMD, num,
+ NULL, NULL)) <= 0)
+ goto err;
+ if((name = OPENSSL_malloc(len + 1)) == NULL)
+ goto err;
+ if(ENGINE_ctrl(e, ENGINE_CTRL_GET_NAME_FROM_CMD, num, name,
+ NULL) <= 0)
+ goto err;
+ /* Get the command description */
+ if((len = ENGINE_ctrl(e, ENGINE_CTRL_GET_DESC_LEN_FROM_CMD, num,
+ NULL, NULL)) < 0)
+ goto err;
+ if(len > 0)
+ {
+ if((desc = OPENSSL_malloc(len + 1)) == NULL)
+ goto err;
+ if(ENGINE_ctrl(e, ENGINE_CTRL_GET_DESC_FROM_CMD, num, desc,
+ NULL) <= 0)
+ goto err;
+ }
+ /* Now decide on the output */
+ if(xpos == 0)
+ /* Do an indent */
+ xpos = BIO_printf(bio_out, indent);
+ else
+ /* Otherwise prepend a ", " */
+ xpos += BIO_printf(bio_out, ", ");
+ if(verbose == 1)
+ {
+ /* We're just listing names, comma-delimited */
+ if((xpos > (int)strlen(indent)) &&
+ (xpos + (int)strlen(name) > line_wrap))
+ {
+ BIO_printf(bio_out, "\n");
+ xpos = BIO_printf(bio_out, indent);
+ }
+ xpos += BIO_printf(bio_out, "%s", name);
+ }
+ else
+ {
+ /* We're listing names plus descriptions */
+ BIO_printf(bio_out, "%s: %s\n", name,
+ (desc == NULL) ? "<no description>" : desc);
+ /* ... and sometimes input flags */
+ if((verbose >= 3) && !util_flags(bio_out, flags,
+ indent))
+ goto err;
+ xpos = 0;
+ }
+ }
+ OPENSSL_free(name); name = NULL;
+ if(desc) { OPENSSL_free(desc); desc = NULL; }
+ /* Move to the next command */
+ num = ENGINE_ctrl(e, ENGINE_CTRL_GET_NEXT_CMD_TYPE,
+ num, NULL, NULL);
+ } while(num > 0);
+ if(xpos > 0)
+ BIO_printf(bio_out, "\n");
+ ret = 1;
+err:
+ if(cmds) sk_pop_free(cmds, identity);
+ if(name) OPENSSL_free(name);
+ if(desc) OPENSSL_free(desc);
+ return ret;
+ }
+
+static void util_do_cmds(ENGINE *e, STACK *cmds, BIO *bio_out, const char *indent)
+ {
+ int loop, res, num = sk_num(cmds);
+ if(num < 0)
+ {
+ BIO_printf(bio_out, "[Error]: internal stack error\n");
+ return;
+ }
+ for(loop = 0; loop < num; loop++)
+ {
+ char buf[256];
+ const char *cmd, *arg;
+ cmd = sk_value(cmds, loop);
+ res = 1; /* assume success */
+ /* Check if this command has no ":arg" */
+ if((arg = strstr(cmd, ":")) == NULL)
+ {
+ if(!ENGINE_ctrl_cmd_string(e, cmd, NULL, 0))
+ res = 0;
+ }
+ else
+ {
+ if((int)(arg - cmd) > 254)
+ {
+ BIO_printf(bio_out,"[Error]: command name too long\n");
+ return;
+ }
+ memcpy(buf, cmd, (int)(arg - cmd));
+ buf[arg-cmd] = '\0';
+ arg++; /* Move past the ":" */
+ /* Call the command with the argument */
+ if(!ENGINE_ctrl_cmd_string(e, buf, arg, 0))
+ res = 0;
+ }
+ if(res)
+ BIO_printf(bio_out, "[Success]: %s\n", cmd);
+ else
+ {
+ BIO_printf(bio_out, "[Failure]: %s\n", cmd);
+ ERR_print_errors(bio_out);
+ }
+ }
+ }
+