[MTD] UBI: Removed automake, autoconf, added ubi userspace headers.

Signed-off-by: Frank Haverkamp <haver@vnet.ibm.com>

1 files changed, 232 insertions, 0 deletions

diff --git a/ubi-utils/src/libubi_sysfs.c b/ubi-utils/src/libubi_sysfs.c
new file mode 100644
index 0000000..95fd3de
--- /dev/null
+++ b/ubi-utils/src/libubi_sysfs.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * UBI (Unsorted Block Images) library.
+ *
+ * Author: Artem B. Bityutskiy
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include <stdarg.h>
+
+#include "config.h"
+#include "libubi_int.h"
+
+int
+sysfs_read_data(const char *file, void *buf, int len)
+{
+	int fd;
+	ssize_t rd;
+
+	fd = open(file, O_RDONLY);
+	if (fd == -1) {
+		ubi_err("cannot open file %s", file);
+		return -1;
+	}
+
+	rd = read(fd, buf, len);
+	if (rd == -1)
+		ubi_err("cannot read file %s", file);
+
+	close(fd);
+
+	return rd;
+}
+
+int
+sysfs_read_data_subst(const char *patt, void *buf, int len, int n, ...)
+{
+	va_list args;
+	char buf1[strlen(patt) + 20 * n];
+
+	va_start(args, n);
+	vsprintf(&buf1[0], patt, args);
+	va_end(args);
+
+	return sysfs_read_data(&buf1[0], buf, len);
+}
+
+int
+sysfs_read_dev(const char *file, unsigned int *major, unsigned int *minor)
+{
+	int fd;
+	int ret;
+	ssize_t rd;
+	int err = -1;
+	char buf[40];
+
+	fd = open(file, O_RDONLY);
+	if (fd == -1) {
+		ubi_err("cannot open file %s", file);
+		return -1;
+	}
+
+	rd = read(fd, &buf[0], 20);
+	if (rd == -1) {
+		ubi_err("cannot read file %s", file);
+		goto error;
+	}
+	if (rd < 4) {
+		ubi_err("bad contents of file %s:", file);
+		goto error;
+	}
+
+	err = -1;
+	if (buf[rd -1] != '\n') {
+		ubi_err("bad contents of file %s", file);
+		goto error;
+	}
+
+	ret = sscanf(&buf[0], "%d:%d\n", major, minor);
+	if (ret != 2) {
+		ubi_err("bad contents of file %s", file);
+		goto error;
+	}
+
+	err = 0;
+
+error:
+	close(fd);
+
+	return err;
+}
+
+int
+sysfs_read_dev_subst(const char *patt, unsigned int *major,
+		unsigned int *minor, int n, ...)
+{
+	va_list args;
+	char buf[strlen(patt) + 20 * n];
+
+	va_start(args, n);
+	vsprintf(&buf[0], patt, args);
+	va_end(args);
+
+	return sysfs_read_dev(&buf[0], major, minor);
+}
+
+static int
+sysfs_read_ull(const char *file __unused, unsigned long long *num __unused)
+{
+	return 0;
+}
+
+int
+sysfs_read_ull_subst(const char *patt, unsigned long long *num, int n, ...)
+{
+	va_list args;
+	char buf[strlen(patt) + 20 * n];
+
+	va_start(args, n);
+	vsprintf(&buf[0], patt, args);
+	va_end(args);
+
+	return	sysfs_read_ull(&buf[0], num);
+}
+
+static int
+sysfs_read_uint(const char *file __unused, unsigned int *num __unused)
+{
+	return 0;
+}
+
+int
+sysfs_read_uint_subst(const char *patt, unsigned int *num, int n, ...)
+{
+	va_list args;
+	char buf[strlen(patt) + 20 * n];
+
+	va_start(args, n);
+	vsprintf(&buf[0], patt, args);
+	va_end(args);
+
+	return	sysfs_read_uint(&buf[0], num);
+}
+
+int
+sysfs_read_ll(const char *file, long long *num)
+{
+	int fd;
+	ssize_t rd;
+	int err = -1;
+	char buf[20];
+	char *endptr;
+
+	fd = open(file, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, &buf[0], 20);
+	if (rd == -1)
+		goto out;
+
+	if (rd < 2) {
+		ubi_err("bad contents in file %s: \"%c%c...\"",
+			file, buf[0], buf[1]);
+		goto out_errno;
+	}
+
+	*num = strtoll(&buf[0], &endptr, 10);
+	if (endptr == &buf[0] || *endptr != '\n') {
+		ubi_err("bad contents in file %s: \"%c%c...\"",
+			file, buf[0], buf[1]);
+		goto out_errno;
+	}
+
+	if  (*num < 0) {
+		ubi_err("bad number in file %s: %lld", file, *num);
+		goto out_errno;
+	}
+
+	err = 0;
+
+out_errno:
+	errno = EINVAL;
+
+out:
+	close(fd);
+	return err;
+}
+
+int
+sysfs_read_int(const char *file, int *num)
+{
+	int err;
+	long long res = 0;
+
+	err = sysfs_read_ll(file, &res);
+	if (err)
+		return err;
+
+	if (res < 0 || res > INT_MAX) {
+		ubi_err("bad number in file %s: %lld", file, res);
+		errno = EINVAL;
+		return -1;
+	}
+
+	*num = res;
+	return 0;
+}