From bc10065533261fbde738caea2096b2bac81a970b Mon Sep 17 00:00:00 2001
From: Jeff Johnston <jjohnstn@redhat.com>
Date: Tue, 23 Jul 2002 19:40:45 +0000
Subject: 2002-07-23  Jeff Johnston  <jjohnstn@redhat.com>

        * libc/include/stdio.h: Move fcloseall prototype within
        #ifndef _REENT_ONLY section.
        * libc/sys/linux/Makefile.am: Add new files.
        * libc/sys/linux/Makefile.in: Regenerated.
        * libc/sys/linux/sys/stdio.h: Add ctermid prototype.
        * libc/sys/linux/sys/unistd.h: Add ttyname_r prototype.
        * libc/sys/linux/sys/types.h: Add ino64_t type.
        * libc/sys/linux/ctermid.c: New file.
        * libc/sys/linux/ttyname_r.c: Ditto.
        * libc/sys/linux/readdir64.c: Ditto.
---
 newlib/libc/sys/linux/readdir64.c | 97 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 newlib/libc/sys/linux/readdir64.c

(limited to 'newlib/libc/sys/linux/readdir64.c')

diff --git a/newlib/libc/sys/linux/readdir64.c b/newlib/libc/sys/linux/readdir64.c
new file mode 100644
index 000000000..78fe98e90
--- /dev/null
+++ b/newlib/libc/sys/linux/readdir64.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Modified from newlib/libc/posix/readdir.c */
+
+#include <dirent.h>
+#include <machine/syscall.h>
+
+#define __NR___getdents64 __NR_getdents64
+
+static _syscall3(int,__getdents64,int,fd,struct dirent64 *,dirp,unsigned int,count)
+
+/*
+ * get next entry in a directory.
+ */
+struct dirent64 *
+__readdir64 (dirp)
+register DIR *dirp; {
+  register struct dirent64 *dp;
+ 
+#ifdef HAVE_DD_LOCK
+  __lock_acquire_recursive(dirp->dd_lock);
+#endif
+
+  if (dirp->dd_fd == -1)
+    return NULL;
+ 
+  for (;;) {
+    if (dirp->dd_loc == 0) {
+      dirp->dd_size = __getdents64 (dirp->dd_fd,
+				    (void *)dirp->dd_buf,
+				    dirp->dd_len);
+      
+      if (dirp->dd_size <= 0) {
+#ifdef HAVE_DD_LOCK
+        __lock_release_recursive(dirp->dd_lock);
+#endif
+	return NULL;
+      }
+    }
+    if (dirp->dd_loc >= dirp->dd_size) {
+      dirp->dd_loc = 0;
+      continue;
+    }
+    dp = (struct dirent64 *)(dirp->dd_buf + dirp->dd_loc);
+    if ((int)dp & 03) {	/* bogus pointer check */
+#ifdef HAVE_DD_LOCK
+      __lock_release_recursive(dirp->dd_lock);
+#endif
+      return NULL;
+    }
+    if (dp->d_reclen <= 0 ||
+	dp->d_reclen > dirp->dd_len + 1 - dirp->dd_loc) {
+#ifdef HAVE_DD_LOCK
+      __lock_release_recursive(dirp->dd_lock);
+#endif
+      return NULL;
+    }
+    dirp->dd_loc += dp->d_reclen;
+    if (dp->d_ino == 0)
+      continue;
+#ifdef HAVE_DD_LOCK
+    __lock_release_recursive(dirp->dd_lock);
+#endif
+    return (dp);
+  }
+}
-- 
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