58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/**************************************************************************/
|
|
/* */
|
|
/* 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 "unixsupport.h"
|
|
|
|
#ifndef PATH_MAX
|
|
#ifdef MAXPATHLEN
|
|
#define PATH_MAX MAXPATHLEN
|
|
#else
|
|
#define PATH_MAX 512
|
|
#endif
|
|
#endif
|
|
|
|
CAMLprim value 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) uerror("readlink", path);
|
|
buffer[len] = '\0';
|
|
CAMLreturn(caml_copy_string(buffer));
|
|
}
|
|
|
|
#else
|
|
|
|
CAMLprim value unix_readlink(value path)
|
|
{ caml_invalid_argument("readlink not implemented"); }
|
|
|
|
#endif
|