From: Ulrich Drepper <drepper@redhat.com>
Date: Sat, 1 Apr 2006 19:12:44 +0000 (+0000)
Subject: [BZ #2450]
X-Git-Tag: upstream/2.30~15666
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6d893bd991df2d3d0b56be3a2cf926756c602915;p=external%2Fglibc.git

[BZ #2450]

	* posix/unistd.h: Match return value of readlink to what POSIX
	says these days.
	* io/readlink.c: Likewise.
	* io/readlinkat.c: Likewise.
	* sysdeps/unix/sysv/linux/readlinkat.c: Likewise.
---

diff --git a/ChangeLog b/ChangeLog
index 0601dca..c2b9b14 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2006-04-01  Ulrich Drepper  <drepper@redhat.com>
 
+	[BZ #2450]
+	* posix/unistd.h: Match return value of readlink to what POSIX
+	says these days.
+	* io/readlink.c: Likewise.
+	* io/readlinkat.c: Likewise.
+	* sysdeps/unix/sysv/linux/readlinkat.c: Likewise.
+
 	[BZ #2498]
 	* nscd/connections.c (main_loop_poll): If the connection cannot be
 	accepted because of user-imposed limits close the descriptor.
diff --git a/io/readlink.c b/io/readlink.c
index 779b809..b69d086 100644
--- a/io/readlink.c
+++ b/io/readlink.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996, 1997, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,7 +22,7 @@
 /* Read the contents of the symbolic link PATH into no more than
    LEN bytes of BUF.  The contents are not null-terminated.
    Returns the number of characters read, or -1 for errors.  */
-int
+ssize_t
 __readlink (path, buf, len)
      const char *path;
      char *buf;
diff --git a/io/readlinkat.c b/io/readlinkat.c
index c6a032c..483dc49 100644
--- a/io/readlinkat.c
+++ b/io/readlinkat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -23,7 +23,7 @@
 /* Read the contents of the symbolic link PATH relative to FD into no
    more than LEN bytes of BUF.  The contents are not null-terminated.
    Returns the number of characters read, or -1 for errors.  */
-int
+ssize_t
 readlinkat (fd, path, buf, len)
      int fd;
      const char *path;
diff --git a/posix/unistd.h b/posix/unistd.h
index c8e8a05..c7a5272 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -770,8 +770,9 @@ extern int symlink (__const char *__from, __const char *__to)
 /* Read the contents of the symbolic link PATH into no more than
    LEN bytes of BUF.  The contents are not null-terminated.
    Returns the number of characters read, or -1 for errors.  */
-extern int readlink (__const char *__restrict __path, char *__restrict __buf,
-		     size_t __len) __THROW __nonnull ((1, 2)) __wur;
+extern ssize_t readlink (__const char *__restrict __path,
+			 char *__restrict __buf, size_t __len)
+     __THROW __nonnull ((1, 2)) __wur;
 #endif /* Use BSD.  */
 
 #ifdef __USE_ATFILE
@@ -780,8 +781,8 @@ extern int symlinkat (__const char *__from, int __tofd,
 		      __const char *__to) __THROW __nonnull ((1, 3)) __wur;
 
 /* Like readlink but a relative PATH is interpreted relative to FD.  */
-extern int readlinkat (int __fd, __const char *__restrict __path,
-		       char *__restrict __buf, size_t __len)
+extern ssize_t readlinkat (int __fd, __const char *__restrict __path,
+			   char *__restrict __buf, size_t __len)
      __THROW __nonnull ((2, 3)) __wur;
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/readlinkat.c b/sysdeps/unix/sysv/linux/readlinkat.c
index c2f21ee..9b4a730 100644
--- a/sysdeps/unix/sysv/linux/readlinkat.c
+++ b/sysdeps/unix/sysv/linux/readlinkat.c
@@ -29,7 +29,7 @@
 
 /* Read the contents of the symbolic link PATH relative to FD into no
    more than LEN bytes of BUF.  */
-int
+ssize_t
 readlinkat (fd, path, buf, len)
      int fd;
      const char *path;