]> code.citadel.org Git - citadel.git/blobdiff - citadel/dynloader.c
removed all references to sprintf from several files (not all files yet)
[citadel.git] / citadel / dynloader.c
index 1087be5c5a02ba15468098e9c78210df9ce20d80..c1e3c64b3d60e42395f9f11c3301eff2372a6756 100644 (file)
@@ -6,9 +6,14 @@
  *
  */
 
+#ifdef DLL_EXPORT
+#define IN_LIBCIT
+#endif
+
 #include "sysdep.h"
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 #ifdef HAVE_DLFCN_H
 #include <dlfcn.h>
 #endif
@@ -41,6 +46,8 @@ struct SessionFunctionHook *SessionHookTable = NULL;
 struct UserFunctionHook *UserHookTable = NULL;
 struct XmsgFunctionHook *XmsgHookTable = NULL;
 struct MessageFunctionHook *MessageHookTable = NULL;
+struct NetprocFunctionHook *NetprocHookTable = NULL;
+struct DeleteFunctionHook *DeleteHookTable = NULL;
 struct ServiceFunctionHook *ServiceHookTable = NULL;
 
 struct ProtoFunctionHook {
@@ -52,7 +59,10 @@ struct ProtoFunctionHook {
 
 void CtdlRegisterProtoHook(void (*handler) (char *), char *cmd, char *desc)
 {
-       struct ProtoFunctionHook *p = mallok(sizeof *p);
+       struct ProtoFunctionHook *p;
+
+       p = (struct ProtoFunctionHook *)
+               mallok(sizeof(struct ProtoFunctionHook));
 
        if (p == NULL) {
                fprintf(stderr, "can't malloc new ProtoFunctionHook\n");
@@ -66,6 +76,29 @@ void CtdlRegisterProtoHook(void (*handler) (char *), char *cmd, char *desc)
        lprintf(5, "Registered server command %s (%s)\n", cmd, desc);
 }
 
+
+void CtdlUnregisterProtoHook(void (*handler) (char *), char *cmd)
+{
+       struct ProtoFunctionHook *cur, *p;
+
+       for (cur = ProtoHookList; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               handler == cur->handler &&
+                               !strcmp(cmd, cur->cmd)) {
+                       lprintf(5, "Unregistered server command %s (%s)\n",
+                                       cmd, cur->desc);
+                       p = cur->next;
+                       if (cur == ProtoHookList) {
+                               ProtoHookList = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
+
 int DLoader_Exec_Cmd(char *cmdbuf)
 {
        struct ProtoFunctionHook *p;
@@ -82,7 +115,7 @@ int DLoader_Exec_Cmd(char *cmdbuf)
 void DLoader_Init(char *pathname)
 {
        void *fcn_handle;
-       char dl_error[256];
+       char dl_error[SIZ];
        DIR *dir;
        int i;
        struct dirent *dptr;
@@ -98,7 +131,11 @@ void DLoader_Init(char *pathname)
        while ((dptr = readdir(dir)) != NULL) {
                if (strlen(dptr->d_name) < 4)
                        continue;
+#ifndef __CYGWIN__
                if (strcasecmp(&dptr->d_name[strlen(dptr->d_name)-3], ".so"))
+#else
+               if (strcasecmp(&dptr->d_name[strlen(dptr->d_name)-4], ".dll"))
+#endif
                        continue;
 
                snprintf(pathbuf, PATH_MAX, "%s/%s", pathname, dptr->d_name);
@@ -153,6 +190,27 @@ void CtdlRegisterLogHook(void (*fcn_ptr) (char *), int loglevel)
 }
 
 
+void CtdlUnregisterLogHook(void (*fcn_ptr) (char *), int loglevel)
+{
+       struct LogFunctionHook *cur, *p;
+
+       for (cur = LogHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               fcn_ptr == cur->h_function_pointer &&
+                               loglevel == cur->loglevel) {
+                       lprintf(5, "Unregistered logging function\n");
+                       p = cur->next;
+                       if (cur == LogHookTable) {
+                               LogHookTable = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
+
 void CtdlRegisterCleanupHook(void (*fcn_ptr) (void))
 {
 
@@ -168,6 +226,26 @@ void CtdlRegisterCleanupHook(void (*fcn_ptr) (void))
 }
 
 
+void CtdlUnregisterCleanupHook(void (*fcn_ptr) (void))
+{
+       struct CleanupFunctionHook *cur, *p;
+
+       for (cur = CleanupHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               fcn_ptr == cur->h_function_pointer) {
+                       lprintf(5, "Unregistered cleanup function\n");
+                       p = cur->next;
+                       if (cur == CleanupHookTable) {
+                               CleanupHookTable = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
+
 void CtdlRegisterSessionHook(void (*fcn_ptr) (void), int EventType)
 {
 
@@ -185,6 +263,28 @@ void CtdlRegisterSessionHook(void (*fcn_ptr) (void), int EventType)
 }
 
 
+void CtdlUnregisterSessionHook(void (*fcn_ptr) (void), int EventType)
+{
+       struct SessionFunctionHook *cur, *p;
+
+       for (cur = SessionHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               fcn_ptr == cur->h_function_pointer &&
+                               EventType == cur->eventtype) {
+                       lprintf(5, "Unregistered session function (type %d)\n",
+                                       EventType);
+                       p = cur->next;
+                       if (cur == SessionHookTable) {
+                               SessionHookTable = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
+
 void CtdlRegisterUserHook(void (*fcn_ptr) (char *, long), int EventType)
 {
 
@@ -202,6 +302,28 @@ void CtdlRegisterUserHook(void (*fcn_ptr) (char *, long), int EventType)
 }
 
 
+void CtdlUnregisterUserHook(void (*fcn_ptr) (char *, long), int EventType)
+{
+       struct UserFunctionHook *cur, *p;
+
+       for (cur = UserHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               fcn_ptr == cur->h_function_pointer &&
+                               EventType == cur->eventtype) {
+                       lprintf(5, "Unregistered user function (type %d)\n",
+                                       EventType);
+                       p = cur->next;
+                       if (cur == UserHookTable) {
+                               UserHookTable = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
+
 void CtdlRegisterMessageHook(int (*handler)(struct CtdlMessage *),
                                int EventType)
 {
@@ -220,6 +342,97 @@ void CtdlRegisterMessageHook(int (*handler)(struct CtdlMessage *),
 }
 
 
+void CtdlUnregisterMessageHook(int (*handler)(struct CtdlMessage *),
+               int EventType)
+{
+       struct MessageFunctionHook *cur, *p;
+
+       for (cur = MessageHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               handler == cur->h_function_pointer &&
+                               EventType == cur->eventtype) {
+                       lprintf(5, "Unregistered message function (type %d)\n",
+                                       EventType);
+                       p = cur->next;
+                       if (cur == MessageHookTable) {
+                               MessageHookTable = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
+
+void CtdlRegisterNetprocHook(int (*handler)(struct CtdlMessage *, char *) )
+{
+       struct NetprocFunctionHook *newfcn;
+
+       newfcn = (struct NetprocFunctionHook *)
+           mallok(sizeof(struct NetprocFunctionHook));
+       newfcn->next = NetprocHookTable;
+       newfcn->h_function_pointer = handler;
+       NetprocHookTable = newfcn;
+
+       lprintf(5, "Registered a new netproc function\n");
+}
+
+
+void CtdlUnregisterNetprocHook(int (*handler)(struct CtdlMessage *, char *) )
+{
+       struct NetprocFunctionHook *cur, *p;
+
+       for (cur = NetprocHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               handler == cur->h_function_pointer ) {
+                       lprintf(5, "Unregistered netproc function\n");
+                       p = cur->next;
+                       if (cur == NetprocHookTable) {
+                               NetprocHookTable = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
+
+void CtdlRegisterDeleteHook(void (*handler)(char *, long) )
+{
+       struct DeleteFunctionHook *newfcn;
+
+       newfcn = (struct DeleteFunctionHook *)
+           mallok(sizeof(struct DeleteFunctionHook));
+       newfcn->next = DeleteHookTable;
+       newfcn->h_function_pointer = handler;
+       DeleteHookTable = newfcn;
+
+       lprintf(5, "Registered a new netproc function\n");
+}
+
+
+void CtdlUnregisterDeleteHook(void (*handler)(char *, long) )
+{
+       struct DeleteFunctionHook *cur, *p;
+
+       for (cur = DeleteHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               handler == cur->h_function_pointer ) {
+                       lprintf(5, "Unregistered netproc function\n");
+                       p = cur->next;
+                       if (cur == DeleteHookTable) {
+                               DeleteHookTable = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
+
 void CtdlRegisterXmsgHook(int (*fcn_ptr) (char *, char *, char *), int order)
 {
 
@@ -234,13 +447,36 @@ void CtdlRegisterXmsgHook(int (*fcn_ptr) (char *, char *, char *), int order)
        lprintf(5, "Registered a new x-msg function (priority %d)\n", order);
 }
 
+
+void CtdlUnregisterXmsgHook(int (*fcn_ptr) (char *, char *, char *), int order)
+{
+       struct XmsgFunctionHook *cur, *p;
+
+       for (cur = XmsgHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               fcn_ptr == cur->h_function_pointer &&
+                               order == cur->order) {
+                       lprintf(5, "Unregistered x-msg function "
+                                       "(priority %d)\n", order);
+                       p = cur->next;
+                       if (cur == XmsgHookTable) {
+                               XmsgHookTable = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
+
 void CtdlRegisterServiceHook(int tcp_port,
                        char *sockpath,
                        void (*h_greeting_function) (void),
                        void (*h_command_function) (void) )
 {
        struct ServiceFunctionHook *newfcn;
-       char message[256];
+       char message[SIZ];
 
        newfcn = (struct ServiceFunctionHook *)
            mallok(sizeof(struct ServiceFunctionHook));
@@ -252,7 +488,7 @@ void CtdlRegisterServiceHook(int tcp_port,
 
        if (sockpath != NULL) {
                newfcn->msock = ig_uds_server(sockpath, config.c_maxsessions);
-               sprintf(message, "Unix domain socket '%s': ", sockpath);
+               snprintf(message, sizeof message, "Unix domain socket '%s': ", sockpath);
        }
        else if (tcp_port <= 0) {       /* port -1 to disable */
                lprintf(7, "Service has been manually disabled, skipping\n");
@@ -261,7 +497,7 @@ void CtdlRegisterServiceHook(int tcp_port,
        }
        else {
                newfcn->msock = ig_tcp_server(tcp_port, config.c_maxsessions);
-               sprintf(message, "TCP port %d: ", tcp_port);
+               snprintf(message, sizeof message, "TCP port %d: ", tcp_port);
        }
 
        if (newfcn->msock > 0) {
@@ -277,6 +513,39 @@ void CtdlRegisterServiceHook(int tcp_port,
 }
 
 
+void CtdlUnregisterServiceHook(int tcp_port, char *sockpath,
+                       void (*h_greeting_function) (void),
+                       void (*h_command_function) (void) )
+{
+       struct ServiceFunctionHook *cur, *p;
+
+       for (cur = ServiceHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               !(sockpath && cur->sockpath &&
+                                       strcmp(sockpath, cur->sockpath)) &&
+                               h_greeting_function == cur->h_greeting_function &&
+                               h_command_function == cur->h_command_function &&
+                               tcp_port == cur->tcp_port) {
+                       close(cur->msock);
+                       if (sockpath) {
+                               lprintf(5, "Closed UNIX domain socket %s\n",
+                                               sockpath);
+                       } else if (tcp_port) {
+                               lprintf(5, "Closed TCP port %d\n", tcp_port);
+                       } else {
+                               lprintf(5, "Unregistered unknown service\n");
+                       }
+                       p = cur->next;
+                       if (cur == ServiceHookTable) {
+                               ServiceHookTable = p;
+                       }
+                       phree(cur);
+                       cur = p;
+               }
+       }
+}
+
 
 void PerformSessionHooks(int EventType)
 {
@@ -318,9 +587,9 @@ int PerformMessageHooks(struct CtdlMessage *msg, int EventType)
 
        /* Other code may elect to protect this message from server-side
         * handlers; if this is the case, don't do anything.
-        */
        lprintf(9, "** Event type is %d, flags are %d\n",
                EventType, msg->cm_flags);
+        */
        if (msg->cm_flags & CM_SKIP_HOOKS) {
                lprintf(9, "Skipping hooks\n");
                return(0);
@@ -344,6 +613,34 @@ int PerformMessageHooks(struct CtdlMessage *msg, int EventType)
 
 
 
+int PerformNetprocHooks(struct CtdlMessage *msg, char *target_room)
+{
+       struct NetprocFunctionHook *fcn;
+       int total_retval = 0;
+
+       for (fcn = NetprocHookTable; fcn != NULL; fcn = fcn->next) {
+               total_retval = total_retval +
+                       (*fcn->h_function_pointer) (msg, target_room);
+       }
+
+       /* Return the sum of the return codes from the hook functions.
+        * A nonzero return code will cause the message to *not* be imported.
+        */
+       return total_retval;
+}
+
+
+void PerformDeleteHooks(char *room, long msgnum)
+{
+       struct DeleteFunctionHook *fcn;
+
+       for (fcn = DeleteHookTable; fcn != NULL; fcn = fcn->next) {
+               (*fcn->h_function_pointer) (room, msgnum);
+       }
+}
+
+
+
 int PerformXmsgHooks(char *sender, char *recp, char *msg)
 {
        struct XmsgFunctionHook *fcn;
@@ -363,7 +660,7 @@ int PerformXmsgHooks(char *sender, char *recp, char *msg)
                 * deliveries to local users simultaneously signed onto
                 * remote services.
                 */
-               if (total_sent) goto DONE;
+               if (total_sent) break;
        }
-DONE:  return total_sent;
+       return total_sent;
 }