1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
19 #include "inspircd_config.h"
20 #include "inspircd_io.h"
30 #include "inspstring.h"
31 #include "helperfuncs.h"
33 #include <sys/types.h>
36 extern ServerConfig* Config;
38 DLLManager::DLLManager(char *fname)
40 if (!strstr(fname,".so"))
42 err = "This doesn't look like a module file to me...";
46 this->staticname[0] = '\0';
47 log(DEBUG,"Loading core-compiled module '%s'",fname);
48 for (int j = 0; modsyms[j].name; j++)
50 log(DEBUG,"Check %s",modsyms[j].name);
51 if (!strcmp(modsyms[j].name,fname))
53 log(DEBUG,"Found %s",fname);
54 strlcpy(this->staticname,fname,1020);
59 err = "Module is not statically compiled into the ircd";
62 // Cygwin behaviour is handled slightly differently
63 // With the advent of dynamic modules. Because Windows
64 // wont let you overwrite a file which is currently in
65 // Use, we can safely attempt to load the module from its
66 // Current location :)
68 h = dlopen(fname, RTLD_NOW );
69 err = (char*)dlerror();
72 // Copy the library to a temp location, this makes recompiles
73 // a little safer if the ircd is running at the time as the
74 // shared libraries are mmap()ed and not doing this causes
76 FILE* x = fopen(fname,"rb");
79 err = "Module file not found or cannot access, game over man!";
82 char tmpfile_template[255];
84 snprintf(tmpfile_template, 255, "%s/inspircd_file.so.%d.XXXXXXXXXX",Config->TempDir,getpid());
85 int fd = mkstemp(tmpfile_template);
88 int n = fread(buffer, 1, 65535, x);
93 // Try to open the library now and get any error message.
95 h = dlopen(tmpfile_template, RTLD_NOW );
96 err = (char*)dlerror();
98 // We can delete the tempfile once it's loaded, leaving just the inode.
99 if (!Config->debugging)
100 unlink(tmpfile_template);
105 DLLManager::~DLLManager()
108 // close the library if it isn't null
118 bool DLLManager::GetSymbol(initfunc* &v, char *sym_name)
120 log(DEBUG,"Symbol search...");
121 for (int j = 0; modsyms[j].name; j++)
123 if (!strcmp(this->staticname,modsyms[j].name))
125 log(DEBUG,"Loading symbol...");
126 v = modsyms[j].value;
131 err = "Module symbol missing from the core";
137 bool DLLManager::GetSymbol(void **v, char *sym_name)
139 // try extract a symbol from the library
140 // get any error message is there is any
144 *v = dlsym( h, sym_name );
145 err = (char*)dlerror();
159 DLLFactoryBase::DLLFactoryBase(char *fname, char *factory) : DLLManager(fname)
161 // try get the factory function if there is no error yet
168 GetSymbol( factory_func, factory ? factory : (char*)"init_module" );
170 GetSymbol( (void **)&factory_func, factory ? factory : (char*)"init_module" );
176 DLLFactoryBase::~DLLFactoryBase()