mirror of git://gcc.gnu.org/git/gcc.git
82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
/* Copyright (C) 2006, 2007 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#include <config.h>
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#include <java/net/VMURLConnection.h>
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#include <gcj/cni.h>
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#include <java/lang/UnsupportedOperationException.h>
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#include <stdio.h>
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#if defined (HAVE_MAGIC_T) && defined (HAVE_MAGIC_H) && defined (USE_LTDL)
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#include <magic.h>
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#include <ltdl.h>
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static magic_t cookie;
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static magic_t (*p_magic_open)(int flags);
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static int (*p_magic_load)(magic_t cookie, const char *filename);
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static void (*p_magic_close)(magic_t cookie);
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static const char * (*p_magic_buffer) (magic_t cookie, const void *buffer,
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size_t length);
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#endif /* HAVE_MAGIC_T && HAVE_MAGIC_H && defined (USE_LTDL) */
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void
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java::net::VMURLConnection::init ()
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{
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#if defined (HAVE_MAGIC_T) && defined (HAVE_MAGIC_H) && defined (USE_LTDL)
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lt_dlhandle handle = lt_dlopenext ("libmagic.so");
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if (!handle)
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return;
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p_magic_open = (typeof (p_magic_open))lt_dlsym(handle, "magic_open");
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if (p_magic_open == NULL)
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return;
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p_magic_buffer = (typeof (p_magic_buffer))lt_dlsym(handle, "magic_buffer");
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if (p_magic_buffer == NULL)
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return;
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p_magic_close = (typeof (p_magic_close))lt_dlsym(handle, "magic_close");
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if (p_magic_close == NULL)
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return;
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p_magic_load = (typeof (p_magic_load))lt_dlsym(handle, "magic_load");
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if (p_magic_load == NULL)
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return;
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cookie = p_magic_open (MAGIC_MIME);
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if (cookie == (magic_t) NULL)
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return;
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if (p_magic_load (cookie, NULL) == -1)
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{
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p_magic_close (cookie);
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cookie = (magic_t) NULL;
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}
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#endif /* HAVE_MAGIC_T && HAVE_MAGIC_H && defined (USE_LTDL) */
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}
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::java::lang::String *
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java::net::VMURLConnection::guessContentTypeFromBuffer (jbyteArray bytes __attribute__ ((unused)),
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jint valid __attribute__ ((unused)))
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{
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#if defined (HAVE_MAGIC_T) && defined (HAVE_MAGIC_H) && defined (USE_LTDL)
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const char *result;
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if (cookie == (magic_t) NULL)
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return NULL;
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result = p_magic_buffer (cookie, elements(bytes), valid);
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if (result == NULL)
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return NULL;
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return _Jv_NewStringUTF (result);
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#else
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return NULL;
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#endif /* HAVE_MAGIC_T && HAVE_MAGIC_H && defined (USE_LTDL) */
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}
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