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/*******************************************************************************
* apps/graphics/traveler/src/trv_fsutils.c
* Miscellaneous file access utilities
*
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name NuttX 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.
*
****************************************************************************/
/****************************************************************************
* Included files
****************************************************************************/
#include "trv_types.h"
#include "trv_main.h"
#include "trv_fsutils.h"
#include <stdio.h>
#include <ctype.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: trv_read_decimal
*
* Description:
* Read a decimal number from the steam 'fp'
*
***************************************************************************/
int16_t trv_read_decimal(FAR FILE *fp)
{
int16_t value = 0;
bool negative = false;
int ch;
/* Skip over any leading whitespace */
do
{
ch = getc(fp);
}
while (isspace(ch));
/* if the first character is '-', then its a negative number */
if (ch == '-')
{
negative = true;
ch = getc(fp);
}
/* Now get the unsigned portion of the number */
while (ch >= '0' && ch <= '9')
{
value = 10 *value + (ch - (int)'0');
ch = getc(fp);
}
/* Apply the negation, if appropriate */
if (negative)
{
value = -value;
}
return value;
}
/****************************************************************************
* Name: trv_fullpath
*
* Description:
* Concatenate a filename and a path to produce the full, absolute path
* to the file. The pointer returned by this function is allocated and
* must be freed by the caller.
*
***************************************************************************/
FAR char *trv_fullpath(FAR const char *path, FAR const char *name)
{
FAR char *fullpath = NULL;
(void)asprintf(&fullpath, "%s/%s", path, name);
if (!fullpath)
{
trv_abort("ERROR: Failured to created full path\n");
}
return fullpath;
}
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