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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#include <caml/mlvalues.h>
#include <caml/memory.h>
#include <caml/alloc.h>
#include <caml/fail.h>
#include <caml/signals.h>
#ifdef HAS_SYMLINK
#include <sys/param.h>
#include "caml/unixsupport.h"
#ifndef PATH_MAX
#ifdef MAXPATHLEN
#define PATH_MAX MAXPATHLEN
#else
#define PATH_MAX 512
#endif
#endif
CAMLprim value caml_unix_readlink(value path)
{
CAMLparam1(path);
char buffer[PATH_MAX];
int len;
char * p;
caml_unix_check_path(path, "readlink");
p = caml_stat_strdup(String_val(path));
caml_enter_blocking_section();
len = readlink(p, buffer, sizeof(buffer) - 1);
caml_leave_blocking_section();
caml_stat_free(p);
if (len == -1) caml_uerror("readlink", path);
buffer[len] = '\0';
CAMLreturn(caml_copy_string(buffer));
}
#else
CAMLprim value caml_unix_readlink(value path)
{ caml_invalid_argument("readlink not implemented"); }
#endif
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