* Written by Brian Costello
* btx@calyx.net
*
+ * $Id$
+ *
******************************************************/
+#include "sysdep.h"
#include <stdio.h>
#include <stdlib.h>
#include <dlfcn.h>
#include <dirent.h>
#include <strings.h>
#include <syslog.h>
+#ifdef HAVE_PTHREAD_H
#include <pthread.h>
+#endif
#include <limits.h>
+#include <ctype.h>
#include "dynloader.h"
#include "citadel.h"
#include "server.h"
#include "sysdep_decls.h"
+#include "tools.h"
+
+#ifndef HAVE_SNPRINTF
+#include <stdarg.h>
+#include "snprintf.h"
+#endif
+struct LogFunctionHook *LogHookTable = NULL;
struct CleanupFunctionHook *CleanupHookTable = NULL;
struct SessionFunctionHook *SessionHookTable = NULL;
struct UserFunctionHook *UserHookTable = NULL;
+struct XmsgFunctionHook *XmsgHookTable = NULL;
-struct ProtoFunctionHook
-{
- void (*handler)(char *cmdbuf);
- char *cmd;
- char *desc;
- struct ProtoFunctionHook *next;
+struct ProtoFunctionHook {
+ void (*handler) (char *cmdbuf);
+ char *cmd;
+ char *desc;
+ struct ProtoFunctionHook *next;
} *ProtoHookList = NULL;
-void CtdlRegisterProtoHook(void (*handler)(char *), char *cmd, char *desc)
+void CtdlRegisterProtoHook(void (*handler) (char *), char *cmd, char *desc)
{
- struct ProtoFunctionHook *p = malloc(sizeof *p);
-
- if (p == NULL)
- {
- fprintf(stderr, "can't malloc new ProtoFunctionHook\n");
- exit(EXIT_FAILURE);
- }
-
- p->handler = handler;
- p->cmd = cmd;
- p->desc = desc;
- p->next = ProtoHookList;
- ProtoHookList = p;
+ struct ProtoFunctionHook *p = mallok(sizeof *p);
+
+ if (p == NULL) {
+ fprintf(stderr, "can't malloc new ProtoFunctionHook\n");
+ exit(EXIT_FAILURE);
+ }
+ p->handler = handler;
+ p->cmd = cmd;
+ p->desc = desc;
+ p->next = ProtoHookList;
+ ProtoHookList = p;
+ lprintf(5, "Registered server command %s (%s)\n", cmd, desc);
}
int DLoader_Exec_Cmd(char *cmdbuf)
{
- struct ProtoFunctionHook *p;
-
- for (p = ProtoHookList; p; p = p->next)
- {
- if (!strncmp(cmdbuf, p->cmd, 4))
- {
- p->handler(&cmdbuf[5]);
- return 1;
+ struct ProtoFunctionHook *p;
+
+ for (p = ProtoHookList; p; p = p->next) {
+ if (!strncasecmp(cmdbuf, p->cmd, 4)) {
+ p->handler(&cmdbuf[5]);
+ return 1;
+ }
}
- }
- return 0;
+ return 0;
}
void DLoader_Init(char *pathname)
{
- void *fcn_handle;
- char *dl_error;
- DIR *dir;
- struct dirent *dptr;
- struct DLModule_Info* (*h_init_fcn)(void);
- struct DLModule_Info *dl_info;
-
- char pathbuf[PATH_MAX];
-
- if ((dir = opendir(pathname))==NULL)
- {
- perror("opendir");
- exit(1);
- }
-
- while ((dptr=readdir(dir))!= NULL)
- {
- if (dptr->d_name[0] == '.')
- continue;
-
- snprintf(pathbuf, PATH_MAX, "%s/%s", pathname, dptr->d_name);
- if (!(fcn_handle = dlopen(pathbuf, RTLD_NOW)))
- {
- dl_error = dlerror();
- fprintf(stderr, "DLoader_Init dlopen failed (%s)\n", dl_error);
- continue;
- }
-
- h_init_fcn = dlsym(fcn_handle, "Dynamic_Module_Init");
- if ((dl_error = dlerror()) != NULL)
- {
- fprintf(stderr,"DLoader_Init dlsym failed (%s)\n", dl_error);
- continue;
- }
-
- dl_info = h_init_fcn();
-
- printf("Loaded module %s v%d.%d\nBy %s (%s)\n", dl_info->module_name,
- dl_info->major_version, dl_info->minor_version,
- dl_info->module_author, dl_info->module_author_email);
- } /* While */
+ void *fcn_handle;
+ char dl_error[256];
+ DIR *dir;
+ int i;
+ struct dirent *dptr;
+ char *(*h_init_fcn) (void);
+ char *dl_info;
+
+ char pathbuf[PATH_MAX];
+
+ if ((dir = opendir(pathname)) == NULL) {
+ perror("opendir");
+ exit(1);
+ }
+ while ((dptr = readdir(dir)) != NULL) {
+ if (dptr->d_name[0] == '.')
+ continue;
+
+ snprintf(pathbuf, PATH_MAX, "%s/%s", pathname, dptr->d_name);
+#ifdef RTLD_NOW
+ if (!(fcn_handle = dlopen(pathbuf, RTLD_NOW)))
+#else /* OpenBSD */
+ if (!(fcn_handle = dlopen(pathbuf, DL_LAZY)))
+#endif
+ {
+ safestrncpy(dl_error, dlerror(), sizeof dl_error);
+ for (i=0; i<strlen(dl_error); ++i)
+ if (!isprint(dl_error[i]))
+ dl_error[i]='.';
+ fprintf(stderr, "DLoader_Init dlopen failed: %s\n",
+ dl_error);
+ continue;
+ }
+ h_init_fcn = (char * (*)(void))
+#ifndef __OpenBSD__
+ dlsym(fcn_handle, "Dynamic_Module_Init");
+#else
+ dlsym(fcn_handle, "_Dynamic_Module_Init");
+#endif
+
+ if (dlerror() != NULL) {
+ fprintf(stderr, "DLoader_Init dlsym failed\n");
+ continue;
+ }
+ dl_info = h_init_fcn();
+
+ lprintf(3, "Loaded module: %s\n", dl_info);
+ } /* While */
}
-void CtdlRegisterCleanupHook(void *fcn_ptr) {
+void CtdlRegisterLogHook(void (*fcn_ptr) (char *), int loglevel)
+{
+
+ struct LogFunctionHook *newfcn;
+
+ newfcn = (struct LogFunctionHook *)
+ mallok(sizeof(struct LogFunctionHook));
+ newfcn->next = LogHookTable;
+ newfcn->h_function_pointer = fcn_ptr;
+ newfcn->loglevel = loglevel;
+ LogHookTable = newfcn;
+
+ lprintf(5, "Registered a new logging function\n");
+}
+
+
+void CtdlRegisterCleanupHook(void (*fcn_ptr) (void))
+{
struct CleanupFunctionHook *newfcn;
newfcn = (struct CleanupFunctionHook *)
- malloc(sizeof(struct CleanupFunctionHook));
+ mallok(sizeof(struct CleanupFunctionHook));
newfcn->next = CleanupHookTable;
newfcn->h_function_pointer = fcn_ptr;
CleanupHookTable = newfcn;
lprintf(5, "Registered a new cleanup function\n");
- }
+}
-void CtdlRegisterSessionHook(void *fcn_ptr, int EventType) {
+void CtdlRegisterSessionHook(void (*fcn_ptr) (void), int EventType)
+{
struct SessionFunctionHook *newfcn;
newfcn = (struct SessionFunctionHook *)
- malloc(sizeof(struct SessionFunctionHook));
+ mallok(sizeof(struct SessionFunctionHook));
newfcn->next = SessionHookTable;
newfcn->h_function_pointer = fcn_ptr;
newfcn->eventtype = EventType;
SessionHookTable = newfcn;
- lprintf(5, "Registered a new session function (type %d)\n",
+ lprintf(5, "Registered a new session function (type %d)\n",
EventType);
- }
+}
-void CtdlRegisterUserHook(void *fcn_ptr, int EventType) {
+void CtdlRegisterUserHook(void (*fcn_ptr) (char *, long), int EventType)
+{
struct UserFunctionHook *newfcn;
newfcn = (struct UserFunctionHook *)
- malloc(sizeof(struct UserFunctionHook));
+ mallok(sizeof(struct UserFunctionHook));
newfcn->next = UserHookTable;
newfcn->h_function_pointer = fcn_ptr;
newfcn->eventtype = EventType;
UserHookTable = newfcn;
- lprintf(5, "Registered a new user function (type %d)\n",
+ lprintf(5, "Registered a new user function (type %d)\n",
EventType);
- }
+}
+
+
+void CtdlRegisterXmsgHook(int (*fcn_ptr) (char *, char *, char *) )
+{
+
+ struct XmsgFunctionHook *newfcn;
+ newfcn = (struct XmsgFunctionHook *)
+ mallok(sizeof(struct XmsgFunctionHook));
+ newfcn->next = XmsgHookTable;
+ newfcn->h_function_pointer = fcn_ptr;
+ XmsgHookTable = newfcn;
-void PerformSessionHooks(int EventType) {
+ lprintf(5, "Registered a new x-msg function\n");
+}
+
+
+void PerformSessionHooks(int EventType)
+{
struct SessionFunctionHook *fcn;
- for (fcn = SessionHookTable; fcn != NULL; fcn = fcn->next) {
+ for (fcn = SessionHookTable; fcn != NULL; fcn = fcn->next) {
if (fcn->eventtype == EventType) {
- (*fcn->h_function_pointer)();
- }
- }
+ (*fcn->h_function_pointer) ();
+ }
+ }
+}
+
+void PerformLogHooks(int loglevel, char *logmsg)
+{
+ struct LogFunctionHook *fcn;
+
+ for (fcn = LogHookTable; fcn != NULL; fcn = fcn->next) {
+ if (fcn->loglevel >= loglevel) {
+ (*fcn->h_function_pointer) (logmsg);
+ }
}
+}
-void PerformUserHooks(char *username, long usernum, int EventType) {
+void PerformUserHooks(char *username, long usernum, int EventType)
+{
struct UserFunctionHook *fcn;
- for (fcn = UserHookTable; fcn != NULL; fcn = fcn->next) {
+ for (fcn = UserHookTable; fcn != NULL; fcn = fcn->next) {
if (fcn->eventtype == EventType) {
- (*fcn->h_function_pointer)(username, usernum);
- }
- }
+ (*fcn->h_function_pointer) (username, usernum);
+ }
}
+}
+
+int PerformXmsgHooks(char *sender, char *recp, char *msg)
+{
+ struct XmsgFunctionHook *fcn;
+ int total_sent = 0;
+ for (fcn = XmsgHookTable; fcn != NULL; fcn = fcn->next) {
+ total_sent +=
+ (*fcn->h_function_pointer) (sender, recp, msg);
+ }
+ return total_sent;
+}