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/* Copyright (c) 1997-2005 Miller Puckette, krzYszcz, and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
/* This is just a not-yet-in-the-API-sys_load_lib() duplication
(modulo differentiating the error return codes). LATER use the original. */
#ifdef __linux__
#include <dlfcn.h>
#endif
#ifdef UNIX
#include <stdlib.h>
#include <unistd.h>
#endif
#ifdef NT
#include <io.h>
#include <windows.h>
#endif
#ifdef MACOSX
#include <mach-o/dyld.h>
#endif
#include <string.h>
#include <stdio.h>
#include "m_pd.h"
#include "common/loud.h"
#include "common/os.h"
#include "loader.h"
typedef void (*t_xxx)(void);
static char sys_dllextent[] =
#ifdef __FreeBSD__
".pd_freebsd";
#endif
#ifdef IRIX
#ifdef N32
".pd_irix6";
#else
".pd_irix5";
#endif
#endif
#ifdef __linux__
".pd_linux";
#endif
#ifdef MACOSX
".pd_darwin";
#endif
#ifdef NT
".dll";
#endif
static int unstable_doload_lib(char *dirname, char *classname)
{
char symname[MAXPDSTRING], filename[MAXPDSTRING], *lastdot;
void *dlobj;
t_xxx makeout;
#ifdef NT
HINSTANCE ntdll;
#endif
/* refabricate the pathname */
strcpy(filename, dirname);
strcat(filename, "/");
strcat(filename, classname);
/* extract the setup function name */
if (lastdot = strrchr(classname, '.'))
*lastdot = 0;
#ifdef MACOSX
strcpy(symname, "_");
strcat(symname, classname);
#else
strcpy(symname, classname);
#endif
/* if the last character is a tilde, replace with "_tilde" */
if (symname[strlen(symname) - 1] == '~')
strcpy(symname + (strlen(symname) - 1), "_tilde");
/* and append _setup to form the C setup function name */
strcat(symname, "_setup");
#ifdef __linux__
dlobj = dlopen(filename, RTLD_NOW | RTLD_GLOBAL);
if (!dlobj)
{
post("%s: %s", filename, dlerror());
return (LOADER_BADFILE);
}
makeout = (t_xxx)dlsym(dlobj, symname);
#endif
#ifdef NT
sys_bashfilename(filename, filename);
ntdll = LoadLibrary(filename);
if (!ntdll)
{
post("%s: couldn't load", filename);
return (LOADER_BADFILE);
}
makeout = (t_xxx)GetProcAddress(ntdll, symname);
#endif
#ifdef MACOSX
{
NSObjectFileImage image;
void *ret;
NSSymbol s;
if ( NSCreateObjectFileImageFromFile( filename, &image) != NSObjectFileImageSuccess )
{
post("%s: couldn't load", filename);
return (LOADER_BADFILE);
}
ret = NSLinkModule( image, filename,
NSLINKMODULE_OPTION_BINDNOW
+ NSLINKMODULE_OPTION_PRIVATE);
s = NSLookupSymbolInModule(ret, symname);
if (s)
makeout = (t_xxx)NSAddressOfSymbol( s);
else makeout = 0;
}
#endif
if (!makeout)
{
post("load_object: Symbol \"%s\" not found", symname);
return (LOADER_NOENTRY);
}
(*makeout)();
return (LOADER_OK);
}
/* start searching from dirname, then search the path */
int unstable_load_lib(char *dirname, char *classname)
{
char dirbuf[MAXPDSTRING], *nameptr;
int fd;
if ((fd = open_via_path(dirname, classname, sys_dllextent,
dirbuf, &nameptr, MAXPDSTRING, 1)) < 0)
{
return (LOADER_NOFILE);
}
else
{
close(fd);
return (unstable_doload_lib(dirbuf, nameptr));
}
}
/* only dirname is searched */
int unstable_dirload_lib(char *dirname, char *classname)
{
if (strlen(dirname) + strlen(classname) + strlen(sys_dllextent) + 3 <
MAXPDSTRING)
{
char namebuf[MAXPDSTRING], *slash, *nameptr;
strcpy(namebuf, dirname);
if (*dirname && namebuf[strlen(namebuf)-1] != '/')
strcat(namebuf, "/");
strcat(namebuf, classname);
strcat(namebuf, sys_dllextent);
slash = strrchr(namebuf, '/');
if (slash)
{
*slash = 0;
nameptr = slash + 1;
}
else nameptr = namebuf;
return (unstable_doload_lib(namebuf, nameptr));
}
else return (LOADER_FAILED);
}
/* return the number of successfully loaded libraries, or -1 on error */
int unstable_dirload_all(char *dirname, int beloud, int withclasses)
{
t_osdir *dp = osdir_open(dirname);
if (dp)
{
int result = 0;
char namebuf[MAXPDSTRING], *name;
osdir_setmode(dp, OSDIR_FILEMODE);
while (name = osdir_next(dp))
{
int namelen = strlen(name), extlen = strlen(sys_dllextent);
if ((namelen -= extlen) > 0 &&
strcmp(name + namelen, sys_dllextent) == 0)
{
strncpy(namebuf, name, namelen);
namebuf[namelen] = 0;
if (zgetfn(&pd_objectmaker, gensym(namebuf)))
{
if (beloud)
loud_warning(0, "xeq", "plugin \"%s\" already loaded",
namebuf);
}
else
{
int err;
if (beloud)
post("loading xeq plugin \"%s\"", namebuf);
err = unstable_dirload_lib(dirname, namebuf);
if (err == LOADER_NOFILE)
{
if (beloud)
loud_error(0, "xeq plugin \"%s\" disappeared",
namebuf);
}
else if (!zgetfn(&pd_objectmaker, gensym(namebuf)))
{
if (beloud)
loud_error(0, "library \"%s\" not compatible",
namebuf);
}
else result++;
}
}
}
osdir_close(dp);
return (result);
}
else
{
if (beloud)
loud_syserror(0, "cannot open \"%s\"", dirname);
return (-1);
}
}
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