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-rw-r--r--cpukit/libblock/src/media-path.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/cpukit/libblock/src/media-path.c b/cpukit/libblock/src/media-path.c
new file mode 100644
index 0000000000..1668145294
--- /dev/null
+++ b/cpukit/libblock/src/media-path.c
@@ -0,0 +1,86 @@
+/**
+ * @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;
+}