ircd-hybrid-7.2/src/dynlink.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  dynlink.c: A module loader.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 * $Id$
 *
 */
#include "stdinc.h"
#include "tools.h"
#include "irc_string.h"
#include "modules.h"
#include "s_log.h"
#include "client.h"
#include "send.h"

#ifndef RTLD_NOW
#define RTLD_NOW RTLD_LAZY /* openbsd deficiency */
#endif

extern dlink_list mod_list;

static char unknown_ver[] = "<unknown>";

/* This file contains the core functions to use dynamic libraries.
 * -TimeMr14C
 */

#if !defined(HAVE_SHL_LOAD) && !defined(HAVE_DLFUNC)
/*
 * Fake dlfunc(3) if we don't have it, cause it's happy.
 */
typedef void (*__function_p)(void);

static __function_p
dlfunc(void *myHandle, const char *functionName)
{
  /* XXX This is not guaranteed to work, but with
   * traditional dl*(3), it is the best we can do.
   * -jmallett
   */
  void *symbolp;

  symbolp = dlsym(myHandle, functionName);
  return((__function_p)(uintptr_t)symbolp);
}
#endif

#ifdef HAVE_MACH_O_DYLD_H
/*
** jmallett's dl*(3) shims for NSModule(3) systems.
*/
#include <mach-o/dyld.h>

#ifndef HAVE_DLOPEN
#ifndef RTLD_LAZY
#define RTLD_LAZY 2185 /* built-in dl*(3) don't care */
#endif

void undefinedErrorHandler(const char *);
NSModule multipleErrorHandler(NSSymbol, NSModule, NSModule);
void linkEditErrorHandler(NSLinkEditErrors, int, const char *, const char *);
char *dlerror(void);
void *dlopen(char *, int);
int dlclose(void *);
void *dlsym(void *, char *);

static int firstLoad = TRUE;
static int myDlError;
static const char *myErrorTable[] =
{
  "Loading file as object failed\n",
  "Loading file as object succeeded\n",
  "Not a valid shared object\n",
  "Architecture of object invalid on this architecture\n",
  "Invalid or corrupt image\n",
  "Could not access object\n",
  "NSCreateObjectFileImageFromFile failed\n",
  NULL
};

void
undefinedErrorHandler(const char *symbolName)
{
  sendto_realops_flags(UMODE_ALL, L_ALL, "Undefined symbol: %s", symbolName);
  ilog(L_WARN, "Undefined symbol: %s", symbolName);
  return;
}

NSModule
multipleErrorHandler(NSSymbol s, NSModule old, NSModule new)
{
  /* XXX
  ** This results in substantial leaking of memory... Should free one
  ** module, maybe?
  */
  sendto_realops_flags(UMODE_ALL, L_ALL, "Symbol `%s' found in `%s' and `%s'",
                       NSNameOfSymbol(s), NSNameOfModule(old), NSNameOfModule(new));
  ilog(L_WARN, "Symbol `%s' found in `%s' and `%s'", NSNameOfSymbol(s),
       NSNameOfModule(old), NSNameOfModule(new));
  /* We return which module should be considered valid, I believe */
  return(new);
}

void
linkEditErrorHandler(NSLinkEditErrors errorClass, int errnum,
                     const char *fileName, const char *errorString)
{
  sendto_realops_flags(UMODE_ALL, L_ALL, "Link editor error: %s for %s",
                       errorString, fileName);
  ilog(L_WARN, "Link editor error: %s for %s", errorString, fileName);
  return;
}

char *
dlerror(void)
{
  return(myDlError == NSObjectFileImageSuccess ? NULL : myErrorTable[myDlError % 7]);
}

void *
dlopen(char *filename, int unused)
{
  NSObjectFileImage myImage;
  NSModule myModule;

  if (firstLoad)
  {
    /* If we are loading our first symbol (huzzah!) we should go ahead
     * and install link editor error handling!
     */
    NSLinkEditErrorHandlers linkEditorErrorHandlers;

    linkEditorErrorHandlers.undefined = undefinedErrorHandler;
    linkEditorErrorHandlers.multiple  = multipleErrorHandler;
    linkEditorErrorHandlers.linkEdit  = linkEditErrorHandler;
    NSInstallLinkEditErrorHandlers(&linkEditorErrorHandlers);
    firstLoad = FALSE;
  }

  myDlError = NSCreateObjectFileImageFromFile(filename, &myImage);

  if (myDlError != NSObjectFileImageSuccess)
    return(NULL);

  myModule = NSLinkModule(myImage, filename, NSLINKMODULE_OPTION_PRIVATE);
  return((void *)myModule);
}

int
dlclose(void *myModule)
{
  NSUnLinkModule(myModule, FALSE);
  return(0);
}

void *
dlsym(void *myModule, char *mySymbolName)
{
  NSSymbol mySymbol;

  mySymbol = NSLookupSymbolInModule((NSModule)myModule, mySymbolName);
  return NSAddressOfSymbol(mySymbol);
}
#endif
#endif

/* unload_one_module()
 *
 * inputs       - name of module to unload
 *              - 1 to say modules unloaded, 0 to not
 * output       - 0 if successful, -1 if error
 * side effects - module is unloaded
 */
int
unload_one_module(char *name, int warn)
{
  dlink_node *ptr = NULL;
  struct module *modp = NULL;

  if ((ptr = findmodule_byname(name)) == NULL) 
    return -1;

  modp = ptr->data;

  if (modp->modremove)
    (*modp->modremove)();

#ifdef HAVE_SHL_LOAD
    /* shl_* and friends have a slightly different format than dl*. But it does not
     * require creation of a totally new modules.c, instead proper usage of
     * defines solve this case. -TimeMr14C
     */
  shl_unload((shl_t) & (modp->address));
#else
  /* We use FreeBSD's dlfunc(3) interface, or fake it as we
   * used to here if it isn't there.  The interface should
   * be standardised some day, and so it eventually will be
   * providing something guaranteed to do the right thing here.
   *          -jmallett
   */
  dlclose(modp->address);
#endif
  assert(dlink_list_length(&mod_list) > 0);
  dlinkDelete(ptr, &mod_list);
  MyFree(modp->name);
  MyFree(modp);

  if (warn == 1)
  {
    ilog(L_INFO, "Module %s unloaded", name);
    sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s unloaded", name);
  }

  return 0;
}

/* load_a_module()
 *
 * inputs       - path name of module, int to notice, int of core
 * output       - -1 if error 0 if success
 * side effects - loads a module if successful
 */
int
load_a_module(char *path, int warn, int core)
{
#ifdef HAVE_SHL_LOAD
  shl_t tmpptr;
#else
  void *tmpptr = NULL;
#endif
  char *mod_basename;
  void (*initfunc)(void) = NULL;
  void (*mod_deinit)(void) = NULL;
  char **verp;
  char *ver;
  struct module *modp;

  mod_basename = basename(path);

  if (findmodule_byname(mod_basename) != NULL)
    return(1);

#ifdef HAVE_SHL_LOAD
  tmpptr = shl_load(path, BIND_IMMEDIATE, NULL);
#else
  tmpptr = dlopen(path, RTLD_NOW);
#endif

  if (tmpptr == NULL)
  {
#ifdef HAVE_SHL_LOAD
    const char *err = strerror(errno);
#else
    const char *err = dlerror();
#endif
    sendto_realops_flags(UMODE_ALL, L_ALL, "Error loading module %s: %s",
                         mod_basename, err);
    ilog(L_WARN, "Error loading module %s: %s", mod_basename, err);
    
    return(-1);
  }

#ifdef HAVE_SHL_LOAD
  if (shl_findsym(&tmpptr, "_modinit", TYPE_UNDEFINED, (void *)&initfunc) == -1)
  {
    if (shl_findsym(&tmpptr, "__modinit", TYPE_UNDEFINED, (void *)&initfunc) == -1)
    {
      ilog(L_WARN, "Module %s has no _modinit() function", mod_basename);
      sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s has no _modinit() function",
                           mod_basename);
      shl_unload(tmpptr);
      return(-1);
    }
  }

  if (shl_findsym(&tmpptr, "_moddeinit", TYPE_UNDEFINED, (void *)&mod_deinit) == -1)
  {
    if (shl_findsym(&tmpptr, "__moddeinit", TYPE_UNDEFINED, (void *)&mod_deinit) == -1)
    {
      ilog(L_WARN, "Module %s has no _moddeinit() function", mod_basename);
      sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s has no _moddeinit() function",
                           mod_basename);
      /* this is a soft error.  we're allowed not to have one, i guess.
       * (judging by the code in unload_one_module() */
      mod_deinit = NULL;
    }
  }

  if (shl_findsym(&tmpptr, "_version", TYPE_UNDEFINED, &verp) == -1)
  {
    if (shl_findsym(&tmpptr, "__version", TYPE_UNDEFINED, &verp) == -1)
      ver = unknown_ver;
    else
      ver = *verp;
  }
  else
    ver = *verp;
#else
  if ((initfunc = (void(*)(void))dlfunc(tmpptr, "_modinit")) == NULL &&
      /* Only for compatibility, because some systems have underscore
       * prepended symbol names */
      (initfunc = (void(*)(void))dlfunc(tmpptr, "__modinit")) == NULL)
  {
    sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s has no _modinit() function",
                         mod_basename);
    ilog(L_WARN, "Module %s has no _modinit() function", mod_basename);
    dlclose(tmpptr);
    return(-1);
  }

  mod_deinit = (void(*)(void))dlfunc(tmpptr, "_moddeinit");

  if (mod_deinit == NULL && (mod_deinit = (void(*)(void))dlfunc(tmpptr, "__moddeinit")) == NULL)
  {
    sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s has no _moddeinit() function",
                         mod_basename);
    ilog(L_WARN, "Module %s has no _moddeinit() function", mod_basename);
    /* blah blah soft error, see above. */
    mod_deinit = NULL;
  }

  verp = (char **)dlsym(tmpptr, "_version");

  if (verp == NULL && (verp = (char **)dlsym(tmpptr, "__version")) == NULL)
    ver = unknown_ver;
  else
    ver = *verp;
#endif

  modp            = MyMalloc(sizeof(struct module));
  modp->address   = tmpptr;
  modp->version   = ver;
  modp->core      = core;
  modp->modremove = mod_deinit;

  DupString(modp->name, mod_basename);
  dlinkAdd(modp, &modp->node, &mod_list);

  initfunc();

  if (warn == 1)
  {
    sendto_realops_flags(UMODE_ALL, L_ALL,
                         "Module %s [version: %s] loaded at %p",
                         mod_basename, ver, tmpptr);
    ilog(L_WARN, "Module %s [version: %s] loaded at %p",
         mod_basename, ver, tmpptr);
  }

  return(0);
}
Revision:	32
Committed:	Sun Oct 2 20:41:23 2005 UTC (19 years, 10 months ago) by knight
Content type:	text/x-csrc
Original Path:	*ircd-hybrid/src/dynlink.c*
File size:	10077 byte(s)
Log Message:	- svn:keywords
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* dynlink.c: A module loader.
4			*
5			* Copyright (C) 2002 by the past and present ircd coders, and others.
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*
24			*/
25			#include "stdinc.h"
26			#include "tools.h"
27			#include "irc_string.h"
28			#include "modules.h"
29			#include "s_log.h"
30			#include "client.h"
31			#include "send.h"
32
33			#ifndef RTLD_NOW
34			#define RTLD_NOW RTLD_LAZY /* openbsd deficiency */
35			#endif
36
37			extern dlink_list mod_list;
38
39			static char unknown_ver[] = "<unknown>";
40
41			/* This file contains the core functions to use dynamic libraries.
42			* -TimeMr14C
43			*/
44
45			#if !defined(HAVE_SHL_LOAD) && !defined(HAVE_DLFUNC)
46			/*
47			* Fake dlfunc(3) if we don't have it, cause it's happy.
48			*/
49			typedef void (*__function_p)(void);
50
51			static __function_p
52			dlfunc(void myHandle, const char functionName)
53			{
54			/* XXX This is not guaranteed to work, but with
55			* traditional dl*(3), it is the best we can do.
56			* -jmallett
57			*/
58			void *symbolp;
59
60			symbolp = dlsym(myHandle, functionName);
61			return((__function_p)(uintptr_t)symbolp);
62			}
63			#endif
64
65			#ifdef HAVE_MACH_O_DYLD_H
66			/*
67			** jmallett's dl*(3) shims for NSModule(3) systems.
68			*/
69			#include <mach-o/dyld.h>
70
71			#ifndef HAVE_DLOPEN
72			#ifndef RTLD_LAZY
73			#define RTLD_LAZY 2185 /* built-in dl(3) don't care /
74			#endif
75
76			void undefinedErrorHandler(const char *);
77			NSModule multipleErrorHandler(NSSymbol, NSModule, NSModule);
78			void linkEditErrorHandler(NSLinkEditErrors, int, const char , const char );
79			char *dlerror(void);
80			void dlopen(char , int);
81			int dlclose(void *);
82			void dlsym(void , char *);
83
84			static int firstLoad = TRUE;
85			static int myDlError;
86			static const char *myErrorTable[] =
87			{
88			"Loading file as object failed\n",
89			"Loading file as object succeeded\n",
90			"Not a valid shared object\n",
91			"Architecture of object invalid on this architecture\n",
92			"Invalid or corrupt image\n",
93			"Could not access object\n",
94			"NSCreateObjectFileImageFromFile failed\n",
95			NULL
96			};
97
98			void
99			undefinedErrorHandler(const char *symbolName)
100			{
101			sendto_realops_flags(UMODE_ALL, L_ALL, "Undefined symbol: %s", symbolName);
102			ilog(L_WARN, "Undefined symbol: %s", symbolName);
103			return;
104			}
105
106			NSModule
107			multipleErrorHandler(NSSymbol s, NSModule old, NSModule new)
108			{
109			/* XXX
110			** This results in substantial leaking of memory... Should free one
111			** module, maybe?
112			*/
113			sendto_realops_flags(UMODE_ALL, L_ALL, "Symbol `%s' found in `%s' and `%s'",
114			NSNameOfSymbol(s), NSNameOfModule(old), NSNameOfModule(new));
115			ilog(L_WARN, "Symbol `%s' found in `%s' and `%s'", NSNameOfSymbol(s),
116			NSNameOfModule(old), NSNameOfModule(new));
117			/* We return which module should be considered valid, I believe */
118			return(new);
119			}
120
121			void
122			linkEditErrorHandler(NSLinkEditErrors errorClass, int errnum,
123			const char fileName, const char errorString)
124			{
125			sendto_realops_flags(UMODE_ALL, L_ALL, "Link editor error: %s for %s",
126			errorString, fileName);
127			ilog(L_WARN, "Link editor error: %s for %s", errorString, fileName);
128			return;
129			}
130
131			char *
132			dlerror(void)
133			{
134			return(myDlError == NSObjectFileImageSuccess ? NULL : myErrorTable[myDlError % 7]);
135			}
136
137			void *
138			dlopen(char *filename, int unused)
139			{
140			NSObjectFileImage myImage;
141			NSModule myModule;
142
143			if (firstLoad)
144			{
145			/* If we are loading our first symbol (huzzah!) we should go ahead
146			* and install link editor error handling!
147			*/
148			NSLinkEditErrorHandlers linkEditorErrorHandlers;
149
150			linkEditorErrorHandlers.undefined = undefinedErrorHandler;
151			linkEditorErrorHandlers.multiple = multipleErrorHandler;
152			linkEditorErrorHandlers.linkEdit = linkEditErrorHandler;
153			NSInstallLinkEditErrorHandlers(&linkEditorErrorHandlers);
154			firstLoad = FALSE;
155			}
156
157			myDlError = NSCreateObjectFileImageFromFile(filename, &myImage);
158
159			if (myDlError != NSObjectFileImageSuccess)
160			return(NULL);
161
162			myModule = NSLinkModule(myImage, filename, NSLINKMODULE_OPTION_PRIVATE);
163			return((void *)myModule);
164			}
165
166			int
167			dlclose(void *myModule)
168			{
169			NSUnLinkModule(myModule, FALSE);
170			return(0);
171			}
172
173			void *
174			dlsym(void myModule, char mySymbolName)
175			{
176			NSSymbol mySymbol;
177
178			mySymbol = NSLookupSymbolInModule((NSModule)myModule, mySymbolName);
179			return NSAddressOfSymbol(mySymbol);
180			}
181			#endif
182			#endif
183
184			/* unload_one_module()
185			*
186			* inputs - name of module to unload
187			* - 1 to say modules unloaded, 0 to not
188			* output - 0 if successful, -1 if error
189			* side effects - module is unloaded
190			*/
191			int
192			unload_one_module(char *name, int warn)
193			{
194			dlink_node *ptr = NULL;
195			struct module *modp = NULL;
196
197			if ((ptr = findmodule_byname(name)) == NULL)
198			return -1;
199
200			modp = ptr->data;
201
202			if (modp->modremove)
203			(*modp->modremove)();
204
205			#ifdef HAVE_SHL_LOAD
206			/* shl_* and friends have a slightly different format than dl*. But it does not
207			* require creation of a totally new modules.c, instead proper usage of
208			* defines solve this case. -TimeMr14C
209			*/
210			shl_unload((shl_t) & (modp->address));
211			#else
212			/* We use FreeBSD's dlfunc(3) interface, or fake it as we
213			* used to here if it isn't there. The interface should
214			* be standardised some day, and so it eventually will be
215			* providing something guaranteed to do the right thing here.
216			* -jmallett
217			*/
218			dlclose(modp->address);
219			#endif
220			assert(dlink_list_length(&mod_list) > 0);
221			dlinkDelete(ptr, &mod_list);
222			MyFree(modp->name);
223			MyFree(modp);
224
225			if (warn == 1)
226			{
227			ilog(L_INFO, "Module %s unloaded", name);
228			sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s unloaded", name);
229			}
230
231			return 0;
232			}
233
234			/* load_a_module()
235			*
236			* inputs - path name of module, int to notice, int of core
237			* output - -1 if error 0 if success
238			* side effects - loads a module if successful
239			*/
240			int
241			load_a_module(char *path, int warn, int core)
242			{
243			#ifdef HAVE_SHL_LOAD
244			shl_t tmpptr;
245			#else
246			void *tmpptr = NULL;
247			#endif
248			char *mod_basename;
249			void (*initfunc)(void) = NULL;
250			void (*mod_deinit)(void) = NULL;
251			char **verp;
252			char *ver;
253			struct module *modp;
254
255			mod_basename = basename(path);
256
257			if (findmodule_byname(mod_basename) != NULL)
258			return(1);
259
260			#ifdef HAVE_SHL_LOAD
261			tmpptr = shl_load(path, BIND_IMMEDIATE, NULL);
262			#else
263			tmpptr = dlopen(path, RTLD_NOW);
264			#endif
265
266			if (tmpptr == NULL)
267			{
268			#ifdef HAVE_SHL_LOAD
269			const char *err = strerror(errno);
270			#else
271			const char *err = dlerror();
272			#endif
273			sendto_realops_flags(UMODE_ALL, L_ALL, "Error loading module %s: %s",
274			mod_basename, err);
275			ilog(L_WARN, "Error loading module %s: %s", mod_basename, err);
276
277			return(-1);
278			}
279
280			#ifdef HAVE_SHL_LOAD
281			if (shl_findsym(&tmpptr, "_modinit", TYPE_UNDEFINED, (void *)&initfunc) == -1)
282			{
283			if (shl_findsym(&tmpptr, "__modinit", TYPE_UNDEFINED, (void *)&initfunc) == -1)
284			{
285			ilog(L_WARN, "Module %s has no _modinit() function", mod_basename);
286			sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s has no _modinit() function",
287			mod_basename);
288			shl_unload(tmpptr);
289			return(-1);
290			}
291			}
292
293			if (shl_findsym(&tmpptr, "_moddeinit", TYPE_UNDEFINED, (void *)&mod_deinit) == -1)
294			{
295			if (shl_findsym(&tmpptr, "__moddeinit", TYPE_UNDEFINED, (void *)&mod_deinit) == -1)
296			{
297			ilog(L_WARN, "Module %s has no _moddeinit() function", mod_basename);
298			sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s has no _moddeinit() function",
299			mod_basename);
300			/* this is a soft error. we're allowed not to have one, i guess.
301			* (judging by the code in unload_one_module() */
302			mod_deinit = NULL;
303			}
304			}
305
306			if (shl_findsym(&tmpptr, "_version", TYPE_UNDEFINED, &verp) == -1)
307			{
308			if (shl_findsym(&tmpptr, "__version", TYPE_UNDEFINED, &verp) == -1)
309			ver = unknown_ver;
310			else
311			ver = *verp;
312			}
313			else
314			ver = *verp;
315			#else
316			if ((initfunc = (void(*)(void))dlfunc(tmpptr, "_modinit")) == NULL &&
317			/* Only for compatibility, because some systems have underscore
318			* prepended symbol names */
319			(initfunc = (void(*)(void))dlfunc(tmpptr, "__modinit")) == NULL)
320			{
321			sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s has no _modinit() function",
322			mod_basename);
323			ilog(L_WARN, "Module %s has no _modinit() function", mod_basename);
324			dlclose(tmpptr);
325			return(-1);
326			}
327
328			mod_deinit = (void(*)(void))dlfunc(tmpptr, "_moddeinit");
329
330			if (mod_deinit == NULL && (mod_deinit = (void(*)(void))dlfunc(tmpptr, "__moddeinit")) == NULL)
331			{
332			sendto_realops_flags(UMODE_ALL, L_ALL, "Module %s has no _moddeinit() function",
333			mod_basename);
334			ilog(L_WARN, "Module %s has no _moddeinit() function", mod_basename);
335			/* blah blah soft error, see above. */
336			mod_deinit = NULL;
337			}
338
339			verp = (char **)dlsym(tmpptr, "_version");
340
341			if (verp == NULL && (verp = (char **)dlsym(tmpptr, "__version")) == NULL)
342			ver = unknown_ver;
343			else
344			ver = *verp;
345			#endif
346
347			modp = MyMalloc(sizeof(struct module));
348			modp->address = tmpptr;
349			modp->version = ver;
350			modp->core = core;
351			modp->modremove = mod_deinit;
352
353			DupString(modp->name, mod_basename);
354			dlinkAdd(modp, &modp->node, &mod_list);
355
356			initfunc();
357
358			if (warn == 1)
359			{
360			sendto_realops_flags(UMODE_ALL, L_ALL,
361			"Module %s [version: %s] loaded at %p",
362			mod_basename, ver, tmpptr);
363			ilog(L_WARN, "Module %s [version: %s] loaded at %p",
364			mod_basename, ver, tmpptr);
365			}
366
367			return(0);
368			}