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 "configreader.h"
30 #include "inspstring.h"
31 #include "helperfuncs.h"
33 #include <sys/types.h>
36 extern ServerConfig* Config;
38 DLLManager::DLLManager(char *fname)
42 if (!strstr(fname,".so"))
44 err = "This doesn't look like a module file to me...";
48 this->staticname[0] = '\0';
49 log(DEBUG,"Loading core-compiled module '%s'",fname);
50 for (int j = 0; modsyms[j].name; j++)
52 log(DEBUG,"Check %s",modsyms[j].name);
53 if (!strcmp(modsyms[j].name,fname))
55 log(DEBUG,"Found %s",fname);
56 strlcpy(this->staticname,fname,1020);
61 err = "Module is not statically compiled into the ircd";
63 // Copy the library to a temp location, this makes recompiles
64 // a little safer if the ircd is running at the time as the
65 // shared libraries are mmap()ed and not doing this causes
67 FILE* x = fopen(fname,"rb");
70 err = "Module file not found or cannot access, game over man!";
73 char tmpfile_template[255];
75 snprintf(tmpfile_template, 255, "%s/inspircd_file.so.%d.XXXXXXXXXX",Config->TempDir,getpid());
76 int fd = mkstemp(tmpfile_template);
80 err = strerror(errno);
85 int n = fread(buffer, 1, 65535, x);
88 int written = write(fd,buffer,n);
92 err = strerror(errno);
97 // Try to open the library now and get any error message.
99 h = dlopen(tmpfile_template, RTLD_NOW );
100 err = (char*)dlerror();
103 // We can delete the tempfile once it's loaded, leaving just the inode.
104 if (!Config->debugging)
105 unlink(tmpfile_template);
109 DLLManager::~DLLManager()
112 // close the library if it isn't null
122 bool DLLManager::GetSymbol(initfunc* &v, char *sym_name)
124 log(DEBUG,"Symbol search...");
125 for (int j = 0; modsyms[j].name; j++)
127 if (!strcmp(this->staticname,modsyms[j].name))
129 log(DEBUG,"Loading symbol...");
130 v = modsyms[j].value;
135 err = "Module symbol missing from the core";
141 bool DLLManager::GetSymbol(void **v, char *sym_name)
143 // try extract a symbol from the library
144 // get any error message is there is any
148 *v = dlsym( h, sym_name );
149 err = (char*)dlerror();
163 DLLFactoryBase::DLLFactoryBase(char *fname, char *factory) : DLLManager(fname)
165 // try get the factory function if there is no error yet
172 GetSymbol( factory_func, factory ? factory : (char*)"init_module" );
174 GetSymbol( (void **)&factory_func, factory ? factory : (char*)"init_module" );
180 DLLFactoryBase::~DLLFactoryBase()