mirror of https://github.com/python/cpython.git
135 lines
4.1 KiB
C
135 lines
4.1 KiB
C
/***********************************************************
|
|
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
|
|
The Netherlands.
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that the names of Stichting Mathematisch
|
|
Centrum or CWI or Corporation for National Research Initiatives or
|
|
CNRI not be used in advertising or publicity pertaining to
|
|
distribution of the software without specific, written prior
|
|
permission.
|
|
|
|
While CWI is the initial source for this software, a modified version
|
|
is made available by the Corporation for National Research Initiatives
|
|
(CNRI) at the Internet address ftp://ftp.python.org.
|
|
|
|
STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
|
|
REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
|
|
CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
|
|
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
|
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
******************************************************************/
|
|
|
|
/* Support for dynamic loading of extension modules */
|
|
|
|
#include "Python.h"
|
|
#include "importdl.h"
|
|
|
|
#include <Aliases.h>
|
|
#include <CodeFragments.h>
|
|
#ifdef SYMANTEC__CFM68K__ /* Really an older version of Universal Headers */
|
|
#define CFragConnectionID ConnectionID
|
|
#define kLoadCFrag 0x01
|
|
#endif
|
|
#ifdef USE_GUSI
|
|
#include "TFileSpec.h" /* for Path2FSSpec() */
|
|
#endif
|
|
#include <Files.h>
|
|
#include "macdefs.h"
|
|
#include "macglue.h"
|
|
|
|
|
|
const struct filedescr _PyImport_DynLoadFiletab[] = {
|
|
{".slb", "rb", C_EXTENSION},
|
|
#ifdef __CFM68K__
|
|
{".CFM68K.slb", "rb", C_EXTENSION},
|
|
#else
|
|
{".ppc.slb", "rb", C_EXTENSION},
|
|
#endif
|
|
{0, 0}
|
|
};
|
|
|
|
|
|
dl_funcptr _PyImport_GetDynLoadFunc(const char *name, const char *funcname,
|
|
const char *pathname, FILE *fp)
|
|
{
|
|
dl_funcptr p;
|
|
|
|
/*
|
|
** Dynamic loading of CFM shared libraries on the Mac. The
|
|
** code has become more convoluted than it was, because we
|
|
** want to be able to put multiple modules in a single
|
|
** file. For this reason, we have to determine the fragment
|
|
** name, and we cannot use the library entry point but we have
|
|
** to locate the correct init routine "by hand".
|
|
*/
|
|
FSSpec libspec;
|
|
CFragConnectionID connID;
|
|
Ptr mainAddr;
|
|
Str255 errMessage;
|
|
OSErr err;
|
|
#ifndef USE_GUSI
|
|
Boolean isfolder, didsomething;
|
|
#endif
|
|
char buf[512];
|
|
Str63 fragname;
|
|
Ptr symAddr;
|
|
CFragSymbolClass class;
|
|
|
|
/* First resolve any aliases to find the real file */
|
|
#ifdef USE_GUSI
|
|
err = Path2FSSpec(pathname, &libspec);
|
|
#else
|
|
(void)FSMakeFSSpec(0, 0, Pstring(pathname), &libspec);
|
|
err = ResolveAliasFile(&libspec, 1, &isfolder, &didsomething);
|
|
#endif
|
|
if ( err ) {
|
|
sprintf(buf, "%.255s: %.200s",
|
|
pathname, PyMac_StrError(err));
|
|
PyErr_SetString(PyExc_ImportError, buf);
|
|
return NULL;
|
|
}
|
|
/* Next, determine the fragment name,
|
|
by stripping '.slb' and 'module' */
|
|
memcpy(fragname+1, libspec.name+1, libspec.name[0]);
|
|
fragname[0] = libspec.name[0];
|
|
if( strncmp((char *)(fragname+1+fragname[0]-4),
|
|
".slb", 4) == 0 )
|
|
fragname[0] -= 4;
|
|
if ( strncmp((char *)(fragname+1+fragname[0]-6),
|
|
"module", 6) == 0 )
|
|
fragname[0] -= 6;
|
|
/* Load the fragment
|
|
(or return the connID if it is already loaded */
|
|
err = GetDiskFragment(&libspec, 0, 0, fragname,
|
|
kLoadCFrag, &connID, &mainAddr,
|
|
errMessage);
|
|
if ( err ) {
|
|
sprintf(buf, "%.*s: %.200s",
|
|
errMessage[0], errMessage+1,
|
|
PyMac_StrError(err));
|
|
PyErr_SetString(PyExc_ImportError, buf);
|
|
return NULL;
|
|
}
|
|
/* Locate the address of the correct init function */
|
|
err = FindSymbol(connID, Pstring(funcname), &symAddr, &class);
|
|
if ( err ) {
|
|
sprintf(buf, "%s: %.200s",
|
|
funcname, PyMac_StrError(err));
|
|
PyErr_SetString(PyExc_ImportError, buf);
|
|
return NULL;
|
|
}
|
|
p = (dl_funcptr)symAddr;
|
|
|
|
return p;
|
|
}
|