1 files changed, 0 insertions, 241 deletions
diff --git a/mdk-stage1/sysfs/sysfs_attr.c b/mdk-stage1/sysfs/sysfs_attr.c
deleted file mode 100644
index 6d6771188..000000000
--- a/mdk-stage1/sysfs/sysfs_attr.c
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * sysfs_dir.c
- *
- * Directory 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_close_attribute: closes and cleans up attribute
- * @sysattr: attribute to close.
- */
-void sysfs_close_attribute(struct sysfs_attribute *sysattr)
-{
-	if (sysattr) {
-		if (sysattr->value)
-			free(sysattr->value);
-		free(sysattr);
-	}
-}
-
-/**
- * alloc_attribute: allocates and initializes attribute structure
- * returns struct sysfs_attribute with success and NULL with error.
- */
-static struct sysfs_attribute *alloc_attribute(void)
-{
-	return (struct sysfs_attribute *)
-			calloc(1, sizeof(struct sysfs_attribute));
-}
-
-/**
- * sysfs_open_attribute: creates sysfs_attribute structure
- * @path: path to attribute.
- * returns sysfs_attribute struct with success and NULL with error.
- */
-struct sysfs_attribute *sysfs_open_attribute(const char *path)
-{
-	struct sysfs_attribute *sysattr = NULL;
-	struct stat fileinfo;
-
-	if (!path) {
-		errno = EINVAL;
-		return NULL;
-	}
-	sysattr = alloc_attribute();
-	if (!sysattr) {
-		dprintf("Error allocating attribute at %s\n", path);
-		return NULL;
-	}
-	if (sysfs_get_name_from_path(path, sysattr->name,
-				SYSFS_NAME_LEN) != 0) {
-		dprintf("Error retrieving attrib name from path: %s\n", path);
-		sysfs_close_attribute(sysattr);
-		return NULL;
-	}
-	safestrcpy(sysattr->path, path);
-	if ((stat(sysattr->path, &fileinfo)) != 0) {
-		dprintf("Stat failed: No such attribute?\n");
-		sysattr->method = 0;
-		free(sysattr);
-		sysattr = NULL;
-	} else {
-		if (fileinfo.st_mode & S_IRUSR)
-			sysattr->method |= SYSFS_METHOD_SHOW;
-		if (fileinfo.st_mode & S_IWUSR)
-			sysattr->method |= SYSFS_METHOD_STORE;
-	}
-
-	return sysattr;
-}
-
-/**
- * sysfs_read_attribute: reads value from attribute
- * @sysattr: attribute to read
- * returns 0 with success and -1 with error.
- */
-int sysfs_read_attribute(struct sysfs_attribute *sysattr)
-{
-	char *fbuf = NULL;
-	char *vbuf = NULL;
-	ssize_t length = 0;
-	long pgsize = 0;
-	int fd;
-
-	if (!sysattr) {
-		errno = EINVAL;
-		return -1;
-	}
-	if (!(sysattr->method & SYSFS_METHOD_SHOW)) {
-		dprintf("Show method not supported for attribute %s\n",
-			sysattr->path);
-		errno = EACCES;
-		return -1;
-	}
-	pgsize = getpagesize();
-	fbuf = (char *)calloc(1, pgsize+1);
-	if (!fbuf) {
-		dprintf("calloc failed\n");
-		return -1;
-	}
-	if ((fd = open(sysattr->path, O_RDONLY)) < 0) {
-		dprintf("Error reading attribute %s\n", sysattr->path);
-		free(fbuf);
-		return -1;
-	}
-	length = read(fd, fbuf, pgsize);
-	if (length < 0) {
-		dprintf("Error reading from attribute %s\n", sysattr->path);
-		close(fd);
-		free(fbuf);
-		return -1;
-	}
-	if (sysattr->len > 0) {
-		if ((sysattr->len == length) &&
-				(!(strncmp(sysattr->value, fbuf, length)))) {
-			close(fd);
-			free(fbuf);
-			return 0;
-		}
-		free(sysattr->value);
-	}
-	sysattr->len = length;
-	close(fd);
-	vbuf = (char *)realloc(fbuf, length+1);
-	if (!vbuf) {
-		dprintf("realloc failed\n");
-		free(fbuf);
-		return -1;
-	}
-	sysattr->value = vbuf;
-
-	return 0;
-}
-
-/**
- * sysfs_write_attribute: write value to the attribute
- * @sysattr: attribute to write
- * @new_value: value to write
- * @len: length of "new_value"
- * returns 0 with success and -1 with error.
- */
-int sysfs_write_attribute(struct sysfs_attribute *sysattr,
-		const char *new_value, size_t len)
-{
-	int fd;
-	int length;
-
-	if (!sysattr || !new_value || len == 0) {
-		errno = EINVAL;
-		return -1;
-	}
-
-	if (!(sysattr->method & SYSFS_METHOD_STORE)) {
-		dprintf ("Store method not supported for attribute %s\n",
-			sysattr->path);
-		errno = EACCES;
-		return -1;
-	}
-	if (sysattr->method & SYSFS_METHOD_SHOW) {
-		/*
-		 * read attribute again to see if we can get an updated value
-		 */
-		if ((sysfs_read_attribute(sysattr))) {
-			dprintf("Error reading attribute\n");
-			return -1;
-		}
-		if ((strncmp(sysattr->value, new_value, sysattr->len)) == 0 &&
-				(len == sysattr->len)) {
-			dprintf("Attr %s already has the requested value %s\n",
-					sysattr->name, new_value);
-			return 0;
-		}
-	}
-	/*
-	 * open O_WRONLY since some attributes have no "read" but only
-	 * "write" permission
-	 */
-	if ((fd = open(sysattr->path, O_WRONLY)) < 0) {
-		dprintf("Error reading attribute %s\n", sysattr->path);
-		return -1;
-	}
-
-	length = write(fd, new_value, len);
-	if (length < 0) {
-		dprintf("Error writing to the attribute %s - invalid value?\n",
-			sysattr->name);
-		close(fd);
-		return -1;
-	} else if ((unsigned int)length != len) {
-		dprintf("Could not write %zd bytes to attribute %s\n",
-					len, sysattr->name);
-		/*
-		 * since we could not write user supplied number of bytes,
-		 * restore the old value if one available
-		 */
-		if (sysattr->method & SYSFS_METHOD_SHOW) {
-			length = write(fd, sysattr->value, sysattr->len);
-			close(fd);
-			return -1;
-		}
-	}
-
-	/*
-	 * Validate length that has been copied. Alloc appropriate area
-	 * in sysfs_attribute. Verify first if the attribute supports reading
-	 * (show method). If it does not, do not bother
-	 */
-	if (sysattr->method & SYSFS_METHOD_SHOW) {
-		if (length != sysattr->len) {
-			sysattr->value = (char *)realloc
-				(sysattr->value, length);
-			sysattr->len = length;
-			safestrcpymax(sysattr->value, new_value, length);
-		} else {
-			/*"length" of the new value is same as old one */
-			safestrcpymax(sysattr->value, new_value, length);
-		}
-	}
-
-	close(fd);
-	return 0;
-}
-