* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
+ * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
* E-mail:
* <brain@chatspike.net>
* <Craig@chatspike.net>
* ---------------------------------------------------
*/
-#include "globals.h"
-#include <dlfcn.h>
+using namespace std;
+
+#include "configreader.h"
#include "dynamic.h"
-#include "inspstring.h"
-#include "helperfuncs.h"
-DLLManager::DLLManager(const char *fname)
+#ifndef STATIC_LINK
+#include <dlfcn.h>
+#else
+#include "modlist.h"
+#endif
+
+#include "inspircd.h"
+
+DLLManager::DLLManager(InspIRCd* ServerInstance, const char *fname)
{
- // Try to open the library now and get any error message.
-
- h=dlopen( fname, RTLD_NOW );
- err=dlerror();
+ err = NULL;
+
+ if (!strstr(fname,".so"))
+ {
+ err = "This doesn't look like a module file to me...";
+ return;
+ }
+#ifdef STATIC_LINK
+ this->staticname[0] = '\0';
+ ServerInstance->Log(DEBUG,"Loading core-compiled module '%s'",fname);
+ for (int j = 0; modsyms[j].name; j++)
+ {
+ ServerInstance->Log(DEBUG,"Check %s",modsyms[j].name);
+ if (!strcmp(modsyms[j].name,fname))
+ {
+ ServerInstance->Log(DEBUG,"Found %s",fname);
+ strlcpy(this->staticname,fname,1020);
+ err = 0;
+ return;
+ }
+ }
+ err = "Module is not statically compiled into the ircd";
+#else
+ // Copy the library to a temp location, this makes recompiles
+ // a little safer if the ircd is running at the time as the
+ // shared libraries are mmap()ed and not doing this causes
+ // segfaults.
+ FILE* x = fopen(fname,"rb");
+ if (!x)
+ {
+ err = strerror(errno);
+ return;
+ }
+ ServerInstance->Log(DEBUG,"Opened module file %s",fname);
+ char tmpfile_template[255];
+ char buffer[65536];
+ snprintf(tmpfile_template, 255, "%s/inspircd_file.so.%d.XXXXXXXXXX",ServerInstance->Config->TempDir,getpid());
+ int fd = mkstemp(tmpfile_template);
+ if (fd == -1)
+ {
+ fclose(x);
+ err = strerror(errno);
+ return;
+ }
+ ServerInstance->Log(DEBUG,"Copying %s to %s",fname, tmpfile_template);
+ while (!feof(x))
+ {
+ int n = fread(buffer, 1, 65535, x);
+ if (n)
+ {
+ int written = write(fd,buffer,n);
+ if (written != n)
+ {
+ fclose(x);
+ err = strerror(errno);
+ return;
+ }
+ }
+ }
+ ServerInstance->Log(DEBUG,"Copied entire file.");
+ // Try to open the library now and get any error message.
+
+ if (close(fd) == -1)
+ err = strerror(errno);
+ if (fclose(x) == EOF)
+ err = strerror(errno);
+
+ h = dlopen(fname, RTLD_NOW|RTLD_LOCAL);
+ if (!h)
+ {
+ ServerInstance->Log(DEBUG,"dlerror occured!");
+ err = (char*)dlerror();
+ return;
+ }
+
+ ServerInstance->Log(DEBUG,"Finished loading '%s': %0x",tmpfile_template, h);
+
+ // We can delete the tempfile once it's loaded, leaving just the inode.
+ if (!err && !ServerInstance->Config->debugging)
+ {
+ ServerInstance->Log(DEBUG,"Deleteting %s",tmpfile_template);
+ if (unlink(tmpfile_template) == -1)
+ err = strerror(errno);
+ }
+#endif
}
DLLManager::~DLLManager()
{
+#ifndef STATIC_LINK
// close the library if it isn't null
- if (h!=0)
- dlclose(h);
+ if (h)
+ dlclose(h);
+#endif
+}
+
+
+
+#ifdef STATIC_LINK
+
+bool DLLManager::GetSymbol(initfunc* &v, const char *sym_name)
+{
+ for (int j = 0; modsyms[j].name; j++)
+ {
+ if (!strcmp(this->staticname,modsyms[j].name))
+ {
+ v = modsyms[j].value;
+ err = 0;
+ return true;
+ }
+ }
+ err = "Module symbol missing from the core";
+ return false;
}
+#else
-bool DLLManager::GetSymbol(void **v, const char *sym_name)
+bool DLLManager::GetSymbol(void** v, const char* sym_name)
{
// try extract a symbol from the library
// get any error message is there is any
- if( h!=0 )
+ if (h)
{
- *v = dlsym( h, sym_name );
- err=dlerror();
- if( err==0 )
- return true;
- else
- return false;
+ dlerror(); // clear value
+ *v = dlsym(h, sym_name);
+ err = (char*)dlerror();
+ if (!*v || err)
+ return false;
+ }
+
+ if (err)
+ {
+ return false;
}
else
{
- return false;
+ return true;
}
-
}
+#endif
-DLLFactoryBase::DLLFactoryBase(const char *fname, const char *factory) : DLLManager(fname)
+DLLFactoryBase::DLLFactoryBase(InspIRCd* Instance, const char* fname, const char* symbol) : DLLManager(Instance, fname)
{
// try get the factory function if there is no error yet
+ factory_func = 0;
- factory_func=0;
-
- if( LastError()==0 )
- {
- GetSymbol( (void **)&factory_func, factory ? factory : "init_module" );
+ if (!LastError())
+ {
+#ifdef STATIC_LINK
+ if (!GetSymbol( factory_func, symbol ? symbol : "init_module"))
+#else
+ if (!GetSymbol( (void **)&factory_func, symbol ? symbol : "init_module"))
+#endif
+ {
+ throw ModuleException("Missing init_module() entrypoint!");
+ }
}
-
}
-
DLLFactoryBase::~DLLFactoryBase()
{
}
-
-