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-rw-r--r--sysfs_utils.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/sysfs_utils.c b/sysfs_utils.c
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+/*
+ * sysfs_utils.c
+ *
+ * System utility functions for libsysfs
+ *
+ * Copyright (C) IBM Corp. 2003-2005
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+#include "libsysfs.h"
+#include "sysfs.h"
+
+/**
+ * sysfs_get_name_from_path: returns last name from a "/" delimited path
+ * @path: path to get name from
+ * @name: where to put name
+ * @len: size of name
+ */
+int sysfs_get_name_from_path(const char *path, char *name, size_t len)
+{
+ char tmp[SYSFS_PATH_MAX];
+ char *n = NULL;
+
+ if (!path || !name || len == 0) {
+ errno = EINVAL;
+ return -1;
+ }
+ memset(tmp, 0, SYSFS_PATH_MAX);
+ safestrcpy(tmp, path);
+ n = strrchr(tmp, '/');
+ if (n == NULL) {
+ errno = EINVAL;
+ return -1;
+ }
+ if (*(n+1) == '\0') {
+ *n = '\0';
+ n = strrchr(tmp, '/');
+ if (n == NULL) {
+ errno = EINVAL;
+ return -1;
+ }
+ }
+ n++;
+ safestrcpymax(name, n, len);
+ return 0;
+}