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readlink(2) [redhat man page]

READLINK(2)						     Linux Programmer's Manual						       READLINK(2)

NAME

       readlink - read value of a symbolic link

SYNOPSIS

       #include <unistd.h>

       int readlink(const char *path, char *buf, size_t bufsiz);

DESCRIPTION

       readlink  places the contents of the symbolic link path in the buffer buf, which has size bufsiz.  readlink does not append a NUL character
       to buf.	It will truncate the contents (to a length of bufsiz characters), in case the buffer is too small to hold all of the contents.

RETURN VALUE

       The call returns the count of characters placed in the buffer if it succeeds, or a -1 if an error occurs, placing the error code in errno.

ERRORS

       ENOTDIR
	      A component of the path prefix is not a directory.

       EINVAL bufsiz is not positive.

       ENAMETOOLONG
	      A pathname, or a component of a pathname, was too long.

       ENOENT The named file does not exist.

       EACCES Search permission is denied for a component of the path prefix.

       ELOOP  Too many symbolic links were encountered in translating the pathname.

       EINVAL The named file is not a symbolic link.

       EIO    An I/O error occurred while reading from the file system.

       EFAULT buf extends outside the process's allocated address space.

       ENOMEM Insufficient kernel memory was available.

CONFORMING TO

       X/OPEN, 4.4BSD (the readlink function call appeared in 4.2BSD).

SEE ALSO

       stat(2), lstat(2), symlink(2)

Linux 2.0.30							    1997-08-21							       READLINK(2)

Check Out this Related Man Page

READLINK(2)							System Calls Manual						       READLINK(2)

NAME

       readlink - read value of a symbolic link

SYNOPSIS

       cc = readlink(path, buf, bufsiz)
       int cc;
       char *path, *buf;
       int bufsiz;

DESCRIPTION

       Readlink  places  the  contents	of the symbolic link name in the buffer buf, which has size bufsiz.  The contents of the link are not null
       terminated when returned.

RETURN VALUE

       The call returns the count of characters placed in the buffer if it succeeds, or a -1 if an error occurs, placing the  error  code  in  the
       global variable errno.

ERRORS

       Readlink will fail and the file mode will be unchanged if:

       [ENOTDIR]      A component of the path prefix is not a directory.

       [EINVAL]       The pathname contains a character with the high-order bit set.

       [ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.

       [ENOENT]       The named file does not exist.

       [EACCES]       Search permission is denied for a component of the path prefix.

       [ELOOP]	      Too many symbolic links were encountered in translating the pathname.

       [EINVAL]       The named file is not a symbolic link.

       [EIO]	      An I/O error occurred while reading from the file system.

       [EFAULT]       Buf extends outside the process's allocated address space.

SEE ALSO

       stat(2), lstat(2), symlink(2)

4.2 Berkeley Distribution					  August 26, 1985						       READLINK(2)
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