[PATCH 016/114] Add filesystem related syscalls for Phoenix.

[Jakub Sejdak <jakub dot sejdak at phoesys dot com>]

From: Kuba Sejdak <jakub.sejdak@phoesys.com>

---
 newlib/libc/sys/phoenix/fs.c | 124 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 newlib/libc/sys/phoenix/fs.c

diff --git a/newlib/libc/sys/phoenix/fs.c b/newlib/libc/sys/phoenix/fs.c
new file mode 100644
index 0000000..b65f33b
--- /dev/null
+++ b/newlib/libc/sys/phoenix/fs.c
@@ -0,0 +1,124 @@
+/* Copyright (C) 2012-2016 Phoenix Systems (http://www.phoesys.com/).
+   This file is part of the GNU C Library.
+
+   The GNU C 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.
+
+   The GNU C 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 the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "syscall.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <malloc.h>
+#include <stdio.h>
+#include <sys/dirent.h>
+#include <sys/stat.h>
+
+#define MAX_PATH		1024
+
+int mkdir(const char *pathname, mode_t mode)
+{
+	int ret = syscall2(int, SYS_MKDIR, pathname, mode);
+	if (ret < 0) {
+		errno = -ret;
+		return -1;
+	}
+
+	return ret;
+}
+
+int rmdir(const char *pathname)
+{
+	int ret = syscall1(int, SYS_RMDIR, pathname);
+	if (ret < 0) {
+		errno = -ret;
+		return -1;
+	}
+
+	return ret;
+}
+
+int chdir(const char *path)
+{
+	int ret = syscall1(int, SYS_SETCWD, path);
+	if (ret < 0) {
+		errno = -ret;
+		return -1;
+	}
+
+	return ret;
+}
+
+char *getcwd(char *buf, size_t size)
+{	
+	if (buf == NULL)
+		buf = (char *) malloc(MAX_PATH);
+
+	int ret = syscall2(int, SYS_GETCWD, buf, size);
+	if (ret < 0) {
+		errno = -ret;
+		return NULL;
+	}
+
+	return buf;
+}
+
+int unlink(const char *pathname)
+{
+	int ret = syscall1(int, SYS_UNLINK, pathname);
+	if (ret < 0) {
+		errno = -ret;
+		return -1;
+	}
+
+	return ret;
+}
+
+int	mkfifo(const char *pathname, mode_t mode)
+{
+	int ret = syscall3(int, SYS_OPEN, pathname, O_CREAT, (mode | S_IFIFO));
+	if (ret < 0) {
+		errno = -ret;
+		return -1;
+	}
+
+	return ret;
+}
+
+int	mknod(const char *pathname, mode_t mode, dev_t dev)
+{
+	int ret = syscall3(int, SYS_MKNOD, pathname, mode, dev);
+	if (ret < 0) {
+		errno = -ret;
+		return -1;
+	}
+
+	return ret;
+}
+
+int getdents(unsigned int fd, struct dirent *dirp, unsigned int count)
+{
+	int ret = syscall3(int, SYS_GETDENTS, fd, dirp, count);
+	if (ret < 0) {
+		errno = -ret;
+		return -1;
+	}
+
+	return ret;
+}
+
+int chroot(const char *path)
+{
+	return chdir(path);
+}
-- 
2.5.0