[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 (file)
--- 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 (file)
--- 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 (file)
--- 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 (file)
--- 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 (file)
--- 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;