DPDK  17.05.2
examples/cmdline/parse_obj_list.c
/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the University of California, Berkeley nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <inttypes.h>
#include <stdarg.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <netinet/in.h>
#include <cmdline_parse.h>
#include <cmdline_parse_ipaddr.h>
#include <rte_string_fns.h>
#include "parse_obj_list.h"
/* This file is an example of extension of libcmdline. It provides an
* example of objects stored in a list. */
struct cmdline_token_ops token_obj_list_ops = {
.parse = parse_obj_list,
.complete_get_nb = complete_get_nb_obj_list,
.complete_get_elt = complete_get_elt_obj_list,
.get_help = get_help_obj_list,
};
int
parse_obj_list(cmdline_parse_token_hdr_t *tk, const char *buf, void *res,
unsigned ressize)
{
struct token_obj_list *tk2 = (struct token_obj_list *)tk;
struct token_obj_list_data *tkd = &tk2->obj_list_data;
struct object *o;
unsigned int token_len = 0;
if (*buf == 0)
return -1;
if (res && ressize < sizeof(struct object *))
return -1;
while(!cmdline_isendoftoken(buf[token_len]))
token_len++;
SLIST_FOREACH(o, tkd->list, next) {
if (token_len != strnlen(o->name, OBJ_NAME_LEN_MAX))
continue;
if (strncmp(buf, o->name, token_len))
continue;
break;
}
if (!o) /* not found */
return -1;
/* store the address of object in structure */
if (res)
*(struct object **)res = o;
return token_len;
}
int complete_get_nb_obj_list(cmdline_parse_token_hdr_t *tk)
{
struct token_obj_list *tk2 = (struct token_obj_list *)tk;
struct token_obj_list_data *tkd = &tk2->obj_list_data;
struct object *o;
int ret = 0;
SLIST_FOREACH(o, tkd->list, next) {
ret ++;
}
return ret;
}
int complete_get_elt_obj_list(cmdline_parse_token_hdr_t *tk,
int idx, char *dstbuf, unsigned int size)
{
struct token_obj_list *tk2 = (struct token_obj_list *)tk;
struct token_obj_list_data *tkd = &tk2->obj_list_data;
struct object *o;
int i = 0;
unsigned len;
SLIST_FOREACH(o, tkd->list, next) {
if (i++ == idx)
break;
}
if (!o)
return -1;
len = strnlen(o->name, OBJ_NAME_LEN_MAX);
if ((len + 1) > size)
return -1;
if (dstbuf)
snprintf(dstbuf, size, "%s", o->name);
return 0;
}
int get_help_obj_list(__attribute__((unused)) cmdline_parse_token_hdr_t *tk,
char *dstbuf, unsigned int size)
{
snprintf(dstbuf, size, "Obj-List");
return 0;
}