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/*
* Copyright (c) 2015 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* format.c: generic network formatting/unformating
*
* Copyright (c) 2008 Eliot Dresselhaus
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <vlib/vlib.h>
u8 *
format_vlib_rx_tx (u8 * s, va_list * args)
{
vlib_rx_or_tx_t r = va_arg (*args, vlib_rx_or_tx_t);
char *t;
switch (r)
{
case VLIB_RX:
t = "rx";
break;
case VLIB_TX:
t = "tx";
break;
default:
t = "INVALID";
break;
}
vec_add (s, t, strlen (t));
return s;
}
u8 *
format_vlib_read_write (u8 * s, va_list * args)
{
vlib_rx_or_tx_t r = va_arg (*args, vlib_rx_or_tx_t);
char *t;
switch (r)
{
case VLIB_READ:
t = "read";
break;
case VLIB_WRITE:
t = "write";
break;
default:
t = "INVALID";
break;
}
vec_add (s, t, strlen (t));
return s;
}
/* Formats buffer data as printable ascii or as hex. */
u8 *
format_vlib_buffer_data (u8 * s, va_list * args)
{
u8 *data = va_arg (*args, u8 *);
u32 n_data_bytes = va_arg (*args, u32);
u32 i, is_printable;
is_printable = 1;
for (i = 0; i < n_data_bytes && is_printable; i++)
{
u8 c = data[i];
if (c < 0x20)
is_printable = 0;
else if (c >= 0x7f)
is_printable = 0;
}
if (is_printable)
vec_add (s, data, n_data_bytes);
else
s = format (s, "%U", format_hex_bytes, data, n_data_bytes);
return s;
}
/* Enable/on => 1; disable/off => 0. */
uword
unformat_vlib_enable_disable (unformat_input_t * input, va_list * args)
{
int *result = va_arg (*args, int *);
int enable;
if (unformat (input, "enable") || unformat (input, "on"))
enable = 1;
else if (unformat (input, "disable") || unformat (input, "off"))
enable = 0;
else
return 0;
*result = enable;
return 1;
}
/* rx/tx => VLIB_RX/VLIB_TX. */
uword
unformat_vlib_rx_tx (unformat_input_t * input, va_list * args)
{
int *result = va_arg (*args, int *);
if (unformat (input, "rx"))
*result = VLIB_RX;
else if (unformat (input, "tx"))
*result = VLIB_TX;
else
return 0;
return 1;
}
/* Parse an int either %d or 0x%x. */
uword
unformat_vlib_number (unformat_input_t * input, va_list * args)
{
int *result = va_arg (*args, int *);
return (unformat (input, "0x%x", result) || unformat (input, "%d", result));
}
/* Parse a-zA-Z0-9_ token and hash to value. */
uword
unformat_vlib_number_by_name (unformat_input_t * input, va_list * args)
{
uword *hash = va_arg (*args, uword *);
int *result = va_arg (*args, int *);
uword *p;
u8 *token;
int i;
if (!unformat_user (input, unformat_token, "a-zA-Z0-9_", &token))
return 0;
/* Null terminate. */
if (vec_len (token) > 0 && token[vec_len (token) - 1] != 0)
vec_add1 (token, 0);
/* Check for exact match. */
p = hash_get_mem (hash, token);
if (p)
goto done;
/* Convert to upper case & try match. */
for (i = 0; i < vec_len (token); i++)
if (token[i] >= 'a' && token[i] <= 'z')
token[i] = 'A' + token[i] - 'a';
p = hash_get_mem (hash, token);
done:
vec_free (token);
if (p)
*result = p[0];
return p != 0;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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