47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/***********************************************************************/
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/* */
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/* OCaml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../../LICENSE. */
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/* */
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/***********************************************************************/
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#include <mlvalues.h>
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#include <alloc.h>
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#include <fail.h>
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#ifdef HAS_SYMLINK
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#include <sys/param.h>
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#include "unixsupport.h"
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#ifndef PATH_MAX
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#ifdef MAXPATHLEN
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#define PATH_MAX MAXPATHLEN
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#else
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#define PATH_MAX 512
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#endif
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#endif
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CAMLprim value unix_readlink(value path)
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{
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char buffer[PATH_MAX];
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int len;
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len = readlink(String_val(path), buffer, sizeof(buffer) - 1);
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if (len == -1) uerror("readlink", path);
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buffer[len] = '\0';
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return copy_string(buffer);
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}
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#else
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CAMLprim value unix_readlink(value path)
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{ invalid_argument("readlink not implemented"); }
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#endif
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