518 lines
12 KiB
C
518 lines
12 KiB
C
/* -*- Mode: C ; c-basic-offset: 2 -*- */
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/*
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* LADI Session Handler (ladish)
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*
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* Copyright (C) 2009,2010,2011 Nedko Arnaudov <nedko@arnaudov.name>
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*
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**************************************************************************
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* This file contains the liblash implementaiton
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**************************************************************************
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*
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* LADI Session Handler is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* LADI Session Handler is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
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* or write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#define LADISH_DEBUG
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#include <arpa/inet.h>
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#include "lash/lash.h"
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#include "../../common.h"
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#include "../../common/catdup.h"
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//#define LOG_OUTPUT_STDOUT
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#include "../../log.h"
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struct _lash_client
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{
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int flags;
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};
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static struct _lash_client g_client;
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struct _lash_event
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{
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enum LASH_Event_Type type;
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char * string;
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};
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struct _lash_config
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{
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char * key;
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size_t size;
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void * value;
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};
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const char * lash_protocol_string(lash_protocol_t protocol)
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{
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return "ladish";
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}
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lash_args_t * lash_extract_args(int * argc, char *** argv)
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{
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/* nothing to do, ladish does not pass any specific arguments */
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return NULL;
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}
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void lash_args_destroy(lash_args_t * args)
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{
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/* nothing to do, ladish does not pass any specific arguments */
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}
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lash_client_t * lash_init(const lash_args_t * args, const char * class, int client_flags, lash_protocol_t protocol)
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{
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if ((client_flags & LASH_Server_Interface) != 0)
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{
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log_error("ladish does not implement LASH server interface.");
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return NULL;
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}
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log_debug("ladish LASH support initialized (%s %s)", (client_flags & LASH_Config_File) != 0 ? "file" : "", (client_flags & LASH_Config_Data_Set) != 0 ? "dict" : "");
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g_client.flags = client_flags;
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return &g_client;
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}
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unsigned int lash_get_pending_event_count(lash_client_t * client_ptr)
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{
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ASSERT(client_ptr == &g_client);
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/* TODO */
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return 0;
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}
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unsigned int lash_get_pending_config_count(lash_client_t * client_ptr)
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{
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ASSERT(client_ptr == &g_client);
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/* TODO */
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return 0;
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}
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lash_event_t * lash_get_event(lash_client_t * client_ptr)
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{
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ASSERT(client_ptr == &g_client);
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/* TODO */
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return NULL;
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}
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lash_config_t * lash_get_config(lash_client_t * client_ptr)
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{
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ASSERT(client_ptr == &g_client);
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/* TODO */
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return NULL;
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}
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void lash_send_event(lash_client_t * client_ptr, lash_event_t * event_ptr)
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{
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ASSERT(client_ptr == &g_client);
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log_debug("lash_send_event() called. type=%d string=%s", event_ptr->type, event_ptr->string != NULL ? event_ptr->string : "(NULL)");
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/* TODO */
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lash_event_destroy(event_ptr);
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}
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void lash_send_config(lash_client_t * client_ptr, lash_config_t * config_ptr)
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{
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ASSERT(client_ptr == &g_client);
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log_debug("lash_send_config() called. key=%s value_size=%zu", config_ptr->key, config_ptr->size);
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/* TODO */
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lash_config_destroy(config_ptr);
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}
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int lash_server_connected(lash_client_t * client_ptr)
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{
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ASSERT(client_ptr == &g_client);
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return 1; /* yes */
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}
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const char * lash_get_server_name(lash_client_t * client_ptr)
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{
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ASSERT(client_ptr == &g_client);
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return "localhost";
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}
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lash_event_t * lash_event_new(void)
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{
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struct _lash_event * event_ptr;
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event_ptr = malloc(sizeof(struct _lash_event));
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if (event_ptr == NULL)
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{
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log_error("malloc() failed to allocate lash event struct");
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return NULL;
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}
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event_ptr->type = 0;
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event_ptr->string = NULL;
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return event_ptr;
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}
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lash_event_t * lash_event_new_with_type(enum LASH_Event_Type type)
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{
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lash_event_t * event_ptr;
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event_ptr = lash_event_new();
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if (event_ptr == NULL)
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{
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return NULL;
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}
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lash_event_set_type(event_ptr, type);
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return event_ptr;
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}
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lash_event_t * lash_event_new_with_all(enum LASH_Event_Type type, const char * string)
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{
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lash_event_t * event_ptr;
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event_ptr = lash_event_new_with_type(type);
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if (event_ptr == NULL)
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{
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return NULL;
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}
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if (string != NULL)
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{
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event_ptr->string = strdup(string);
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if (event_ptr->string == NULL)
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{
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log_error("strdup() failed for event string '%s'", string);
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free(event_ptr);
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return NULL;
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}
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}
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return event_ptr;
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}
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void lash_event_destroy(lash_event_t * event_ptr)
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{
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free(event_ptr->string);
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free(event_ptr);
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}
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enum LASH_Event_Type lash_event_get_type(const lash_event_t * event_ptr)
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{
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return event_ptr->type;
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}
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const char * lash_event_get_string(const lash_event_t * event_ptr)
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{
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return event_ptr->string;
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}
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void lash_event_set_type(lash_event_t * event_ptr, enum LASH_Event_Type type)
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{
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event_ptr->type = type;
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}
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void lash_event_set_string(lash_event_t * event_ptr, const char * string)
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{
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char * dup;
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if (string != NULL)
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{
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dup = strdup(string);
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if (dup == NULL)
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{
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log_error("strdup() failed for event string '%s'", string);
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ASSERT_NO_PASS;
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return;
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}
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}
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else
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{
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dup = NULL;
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}
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free(event_ptr->string);
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event_ptr->string = dup;
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}
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const char * lash_event_get_project(const lash_event_t * event_ptr)
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{
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/* Server interface - not implemented */
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ASSERT_NO_PASS; /* lash_init() fails if LASH_Server_Interface is set */
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return NULL;
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}
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void lash_event_set_project(lash_event_t * event_ptr, const char * project)
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{
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/* Server interface - not implemented */
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ASSERT_NO_PASS; /* lash_init() fails if LASH_Server_Interface is set */
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}
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void lash_event_get_client_id(const lash_event_t * event_ptr, uuid_t id)
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{
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/* Server interface - not implemented */
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ASSERT_NO_PASS; /* lash_init() fails if LASH_Server_Interface is set */
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}
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void lash_event_set_client_id(lash_event_t * event_ptr, uuid_t id)
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{
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/* Server interface - not implemented */
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ASSERT_NO_PASS; /* lash_init() fails if LASH_Server_Interface is set */
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}
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unsigned char lash_event_get_alsa_client_id(const lash_event_t * event_ptr)
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{
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/* Server interface - not implemented */
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ASSERT_NO_PASS; /* lash_init() fails if LASH_Server_Interface is set */
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return 0;
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}
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unsigned char lash_str_get_alsa_client_id(const char * str)
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{
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/* Server interface - not implemented */
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ASSERT_NO_PASS; /* lash_init() fails if LASH_Server_Interface is set */
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/* this is an undocumented function and probably internal one that sneaked to the public API */
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return 0;
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}
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void lash_jack_client_name(lash_client_t * client_ptr, const char * name)
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{
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/* nothing to do, ladish detects jack client name through jack server */
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}
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void lash_str_set_alsa_client_id(char * str, unsigned char alsa_id)
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{
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/* nothing to do, ladish detects alsa id through alsapid.so, jack and a2jmidid */
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/* this is an undocumented function and probably internal one that sneaked to the public API */
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}
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void lash_event_set_alsa_client_id(lash_event_t * event_ptr, unsigned char alsa_id)
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{
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/* set event type, so we can silently ignore the event, when sent */
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lash_event_set_type(event_ptr, LASH_Alsa_Client_ID);
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}
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void lash_alsa_client_id(lash_client_t * client, unsigned char id)
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{
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/* nothing to do, ladish detects alsa id through alsapid.so, jack and a2jmidid */
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}
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lash_config_t * lash_config_new(void)
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{
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struct _lash_config * config_ptr;
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config_ptr = malloc(sizeof(struct _lash_config));
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if (config_ptr == NULL)
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{
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log_error("malloc() failed to allocate lash event struct");
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return NULL;
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}
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config_ptr->key = NULL;
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config_ptr->value = NULL;
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config_ptr->size = 0;
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return config_ptr;
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}
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lash_config_t * lash_config_dup(const lash_config_t * src_ptr)
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{
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lash_config_t * dst_ptr;
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dst_ptr = lash_config_new();
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if (dst_ptr == NULL)
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{
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return NULL;
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}
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ASSERT(src_ptr->key != NULL);
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dst_ptr->key = strdup(src_ptr->key);
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if (dst_ptr->key == NULL)
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{
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log_error("strdup() failed for config key '%s'", src_ptr->key);
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free(dst_ptr);
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return NULL;
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}
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if (dst_ptr->value != NULL)
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{
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dst_ptr->value = malloc(src_ptr->size);
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if (dst_ptr->value == NULL)
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{
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log_error("strdup() failed for config value with size %zu", src_ptr->size);
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free(dst_ptr->key);
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free(dst_ptr);
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return NULL;
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}
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memcpy(dst_ptr->value, src_ptr->value, src_ptr->size);
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dst_ptr->size = src_ptr->size;
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}
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return dst_ptr;
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}
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lash_config_t * lash_config_new_with_key(const char * key)
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{
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lash_config_t * config_ptr;
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config_ptr = lash_config_new();
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if (config_ptr == NULL)
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{
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return NULL;
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}
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config_ptr->key = strdup(key);
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if (config_ptr->key == NULL)
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{
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log_error("strdup() failed for config key '%s'", key);
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free(config_ptr);
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return NULL;
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}
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return config_ptr;
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}
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void lash_config_destroy(lash_config_t * config_ptr)
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{
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free(config_ptr->key);
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free(config_ptr->value);
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free(config_ptr);
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}
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const char * lash_config_get_key(const lash_config_t * config_ptr)
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{
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return config_ptr->key;
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}
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const void * lash_config_get_value(const lash_config_t * config_ptr)
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{
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return config_ptr->value;
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}
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size_t lash_config_get_value_size(const lash_config_t * config_ptr)
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{
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return config_ptr->size;
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}
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void lash_config_set_key(lash_config_t * config_ptr, const char * key)
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{
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char * dup;
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ASSERT(key != NULL);
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dup = strdup(key);
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if (dup == NULL)
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{
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log_error("strdup() failed for config key '%s'", key);
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ASSERT_NO_PASS;
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return;
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}
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free(config_ptr->key);
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config_ptr->key = dup;
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}
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void lash_config_set_value(lash_config_t * config_ptr, const void * value, size_t value_size)
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{
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void * buf;
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if (value != NULL)
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{
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buf = malloc(value_size);
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if (buf == NULL)
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{
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log_error("malloc() failed for config value with size %zu", value_size);
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ASSERT_NO_PASS;
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return;
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}
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memcpy(buf, value, value_size);
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}
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else
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{
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buf = NULL;
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value_size = 0;
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}
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free(config_ptr->value);
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config_ptr->value = buf;
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config_ptr->size = value_size;
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}
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uint32_t lash_config_get_value_int(const lash_config_t * config_ptr)
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{
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ASSERT(lash_config_get_value_size(config_ptr) >= sizeof(uint32_t));
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return ntohl(*(const uint32_t *)lash_config_get_value(config_ptr));
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}
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float lash_config_get_value_float(const lash_config_t * config_ptr)
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{
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ASSERT(lash_config_get_value_size(config_ptr) >= sizeof(float));
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return *(const float *)lash_config_get_value(config_ptr);
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}
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double lash_config_get_value_double(const lash_config_t * config_ptr)
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{
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ASSERT(lash_config_get_value_size(config_ptr) >= sizeof(double));
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return *(const double *)lash_config_get_value(config_ptr);
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}
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const char * lash_config_get_value_string(const lash_config_t * config_ptr)
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{
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const char * string;
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size_t len;
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void * ptr;
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string = lash_config_get_value(config_ptr);
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len = lash_config_get_value_size(config_ptr);
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ptr = memchr(string, 0, len);
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ASSERT(ptr != NULL);
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return string;
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}
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void lash_config_set_value_int(lash_config_t * config_ptr, uint32_t value)
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{
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value = htonl(value);
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lash_config_set_value(config_ptr, &value, sizeof(uint32_t));
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}
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void lash_config_set_value_float(lash_config_t * config_ptr, float value)
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{
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lash_config_set_value(config_ptr, &value, sizeof(float));
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}
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void lash_config_set_value_double(lash_config_t * config_ptr, double value)
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{
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lash_config_set_value(config_ptr, &value, sizeof(double));
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}
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void lash_config_set_value_string(lash_config_t * config_ptr, const char * value)
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{
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lash_config_set_value(config_ptr, value, strlen(value) + 1);
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}
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const char * lash_get_fqn(const char * dir, const char * file)
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{
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static char * fqn = NULL;
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if (fqn != NULL)
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{
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free(fqn);
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}
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fqn = catdup3(dir, "/", file);
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return fqn;
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}
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