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/**
* @file
*
* @ingroup RTEMSMedia
*
* @brief Media implementation.
*/
/*
* Copyright (c) 2009, 2010 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>
#include <rtems/media.h>
char *rtems_media_create_path(
const char *prefix,
const char *name,
rtems_device_major_number major
)
{
size_t const size = strlen(prefix) + 1 + strlen(name) + 1 + 10 + 1;
char *const s = malloc(size);
if (s != NULL) {
#ifndef NDEBUG
int rv =
#endif
snprintf(s, size, "%s/%s-%" PRIu32, prefix, name, major);
assert(rv < (int) size);
}
return s;
}
char *rtems_media_replace_prefix(const char *new_prefix, const char *path)
{
const char *const name_try = strrchr(path, '/');
const char *const name = (name_try == NULL) ? path : name_try + 1;
size_t const new_prefix_len = strlen(new_prefix);
size_t const name_size = strlen(name) + 1;
size_t const size = new_prefix_len + 1 + name_size;
char *const s = malloc(size);
if (s != NULL) {
memcpy(s, new_prefix, new_prefix_len);
s [new_prefix_len] = '/';
memcpy(s + new_prefix_len + 1, name, name_size);
}
return s;
}
char *rtems_media_append_minor(
const char *path,
rtems_device_minor_number minor
)
{
size_t const size = strlen(path) + 1 + 10 + 1;
char *const s = malloc(size);
if (s != NULL) {
#ifndef NDEBUG
int rv =
#endif
snprintf(s, size, "%s-%" PRIu32, path, minor);
assert(rv < (int) size);
}
return s;
}
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