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Commit summary:
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submit missing files from last checkin

diff --git a/libpam/pam_dynamic.c b/libpam/pam_dynamic.c
new file mode 100644 (file)
index 0000000..6bb3d55
--- /dev/null
+++ b/libpam/pam_dynamic.c
@@ -0,0 +1,140 @@
+/*
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, and the entire permission notice in its entirety,
+ *    including the disclaimer of warranties.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * ALTERNATIVELY, this product may be distributed under the terms of
+ * the GNU Public License, in which case the provisions of the GPL are
+ * required INSTEAD OF the above restrictions.  (This clause is
+ * necessary due to a potential bad interaction between the GPL and
+ * the restrictions contained in a BSD-style copyright.)
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "pam_private.h"
+
+#ifdef PAM_SHL
+# include <dl.h>
+#elif defined(PAM_DYLD)
+# include <mach-o/dyld.h>
+#else /* PAM_SHL */
+# include <dlfcn.h>
+#endif /* PAM_SHL */
+
+#include "pam_dynamic.h"
+
+#ifndef SHLIB_SYM_PREFIX
+#define SHLIB_SYM_PREFIX "_"
+#endif
+
+void *_pam_dlopen(const char *mod_path)
+{
+#ifdef PAM_SHL
+       return shl_load(mod_path, BIND_IMMEDIATE, 0L);
+#elif defined(PAM_DYLD)
+       NSObjectFileImage ofile;
+       void *ret = NULL;
+
+       if (NSCreateObjectFileImageFromFile(mod_path, &ofile) != 
+                       NSObjectFileImageSuccess ) 
+               return NULL;
+
+       ret = NSLinkModule(ofile, mod_path, NSLINKMODULE_OPTION_PRIVATE | NSLINKMODULE_OPTION_BINDNOW);
+       NSDestroyObjectFileImage(ofile);
+
+       return ret;
+#else
+       return dlopen(mod_path, RTLD_NOW);
+#endif
+}
+
+servicefn _pam_dlsym(void *handle, const char *symbol) 
+{
+#ifdef PAM_SHL
+       char *_symbol = NULL;
+       servicefn ret;
+
+       if( symbol == NULL )
+               return NULL;
+
+       if( shl_findsym(&handle, symbol, (short) TYPE_PROCEDURE, &ret ){
+               _symbol = malloc( strlen(symbol) + sizeof(SHLIB_SYM_PREFIX) + 1 );
+               if( _symbol == NULL )
+                       return NULL;
+               strcpy(_symbol, SHLIB_SYM_PREFIX);
+               strcat(_symbol, symbol);
+               if( shl_findsym(&handle, _symbol, 
+                               (short) TYPE_PROCEDURE, &ret ){
+                       free(_symbol);
+                       return NULL;
+               }
+               free(_symbol);
+       }
+
+       return ret;
+       
+#elif defined(PAM_DYLD)
+       NSSymbol nsSymbol;
+       char *_symbol;
+
+       if( symbol == NULL )
+               return NULL;
+       _symbol = malloc( strlen(symbol) + 2 );
+       if( _symbol == NULL )
+               return NULL;
+       strcpy(_symbol, SHLIB_SYM_PREFIX);
+       strcat(_symbol, symbol);
+
+       nsSymbol = NSLookupSymbolInModule(handle, _symbol);
+       if( nsSymbol == NULL )
+               return NULL;
+       free(_symbol);
+
+       return (servicefn)NSAddressOfSymbol(nsSymbol);
+#else
+       return (servicefn) dlsym(handle, symbol);
+#endif
+}
+
+void _pam_dlclose(void *handle)
+{
+#ifdef PAM_SHL
+       shl_unload(handle);
+#elif defined(PAM_DYLD)
+       NSUnLinkModule((NSModule)handle, NSUNLINKMODULE_OPTION_NONE);
+#else
+       dlclose(handle);
+#endif
+
+       return;
+}
+
+const char *
+_pam_dlerror (void)
+{
+#if defined(PAM_SHL) || defined(PAM_DYLD)
+        return "unknown";
+#else
+        return dlerror ();
+#endif
+}

diff --git a/libpam/pam_dynamic.h b/libpam/pam_dynamic.h
new file mode 100644 (file)
index 0000000..35c427a
--- /dev/null
+++ b/libpam/pam_dynamic.h
@@ -0,0 +1,11 @@
+#ifndef _PAM_DYNAMIC_H
+#define _PAM_DYNAMIC_H
+
+typedef int (*servicefn)(pam_handle_t *, int, int, char **);
+
+void *_pam_dlopen (const char *mod_path);
+servicefn _pam_dlsym (void *handle, const char *symbol);
+void _pam_dlclose (void *handle);
+const char *_pam_dlerror (void);
+
+#endif