REALPATH(3)             NetBSD Library Functions Manual            REALPATH(3)

NAME
     realpath -- returns the canonicalized absolute pathname

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/param.h>
     #include <stdlib.h>

     char *
     realpath(const char *pathname, char resolvedname[MAXPATHLEN]);

DESCRIPTION
     The realpath() function resolves all symbolic links, extra ``/'' charac-
     ters and references to /./ and /../ in pathname, and copies the resulting
     absolute pathname into the memory referenced by resolvedname.  The
     resolvedname argument must refer to a buffer capable of storing at least
     MAXPATHLEN characters.

     The realpath() function will resolve both absolute and relative paths and
     return the absolute pathname corresponding to pathname.

RETURN VALUES
     The realpath() function returns resolvedname on success.  If an error
     occurs, realpath() returns NULL, and resolvedname contains the pathname
     which caused the problem.

ERRORS
     The function realpath() may fail and set the external variable errno for
     any of the errors specified for the library functions chdir(2), close(2),
     fchdir(2), lstat(2), open(2), readlink(2) and getcwd(3).

SEE ALSO
     getcwd(3)

HISTORY
     The realpath() function call first appeared in 4.4BSD.

BUGS
     This implementation of realpath() differs slightly from the Solaris
     implementation.  The 4.4BSD version always returns absolute pathnames,
     whereas the Solaris implementation will, under certain circumstances,
     return a relative resolvedname when given a relative pathname.

NetBSD 5.0_STABLE               August 13, 2005              NetBSD 5.0_STABLE
