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/*
* tclLoadShl.c --
*
* This procedure provides a version of the TclLoadFile that works
* with the "shl_load" and "shl_findsym" library procedures for
* dynamic loading (e.g. for HP machines).
*
* Copyright (c) 1995-1996 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* SCCS: @(#) tclLoadShl.c 1.5 96/03/15 15:01:44
*/
#include <dl.h>
/*
* On some HP machines, dl.h defines EXTERN; remove that definition.
*/
#ifdef EXTERN
# undef EXTERN
#endif
#include "tcl.h"
#include "compat/dlfcn.h"
#include <errno.h>
#ifndef DYNAMIC_PATH
# define DYNAMIC_PATH 0
#endif
void *
dlopen(path, mode)
const char *path;
int mode;
{
int flags, length;
if (path == (char *) NULL) {
return (void *) PROG_HANDLE;
}
flags = ((mode & RTLD_NOW) ? BIND_IMMEDIATE : BIND_DEFERRED) |
DYNAMIC_PATH;
#ifdef BIND_VERBOSE
length = strlen(path);
if ((length > 2) && !(strcmp(path+length-3,".sl"))) {
flags |= BIND_VERBOSE;
}
#endif
return (void *) shl_load(path, flags, 0L);
}
void *
dlsym(handle, symbol)
void *handle;
const char *symbol;
{ void *address;
if (shl_findsym((shl_t *)&handle, symbol,
(short) TYPE_UNDEFINED, &address) != 0) {
address = NULL;
}
return address;
}
char *
dlerror()
{
return (char *) Tcl_ErrnoMsg(errno);
}
int
dlclose(handle)
void *handle;
{
return shl_unload((shl_t) handle);
}
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