4 * Citadel "system dependent" stuff.
5 * See copyright.txt for copyright information.
7 * Here's where we (hopefully) have most parts of the Citadel server that
8 * would need to be altered to run the server in a non-POSIX environment.
10 * If we ever port to a different platform and either have multiple
11 * variants of this file or simply load it up with #ifdefs.
26 #include <sys/types.h>
29 #include <sys/socket.h>
30 #include <sys/syslog.h>
32 #if TIME_WITH_SYS_TIME
33 # include <sys/time.h>
37 # include <sys/time.h>
44 #include <netinet/in.h>
57 #include "serv_extensions.h"
58 #include "sysdep_decls.h"
59 #include "citserver.h"
63 #include "housekeeping.h"
65 #include "serv_crypto.h"
67 #ifdef HAVE_SYS_SELECT_H
68 #include <sys/select.h>
76 #ifdef DEBUG_MEMORY_LEAKS
84 struct igheap *igheap = NULL;
88 pthread_mutex_t Critters[MAX_SEMAPHORES]; /* Things needing locking */
89 pthread_key_t MyConKey; /* TSD key for MyContext() */
91 int verbosity = DEFAULT_VERBOSITY; /* Logging level */
93 struct CitContext masterCC;
94 time_t last_purge = 0; /* Last dead session purge */
95 static int num_threads = 0; /* Current number of threads */
96 int num_sessions = 0; /* Current number of sessions */
98 pthread_t initial_thread; /* tid for main() thread */
100 int syslog_facility = (-1);
104 * lprintf() ... Write logging information
106 * Note: the variable "buf" below needs to be large enough to handle any
107 * log data sent through this function. BE CAREFUL!
109 void lprintf(enum LogLevel loglevel, const char *format, ...) {
113 va_start(arg_ptr, format);
114 vsnprintf(buf, sizeof(buf), format, arg_ptr);
117 if (syslog_facility >= 0) {
118 if (loglevel <= verbosity) {
120 if (CC && CC->cs_pid) {
121 memmove(buf + 6, buf, sizeof(buf) - 6);
122 snprintf(buf, 6, "[%3d]", CC->cs_pid);
125 syslog(loglevel, buf);
128 else if (loglevel <= verbosity) {
133 gettimeofday(&tv, NULL);
134 /* Promote to time_t; types differ on some OSes (like darwin) */
135 unixtime = tv.tv_sec;
136 tim = localtime(&unixtime);
138 * Log provides millisecond accuracy. If you need
139 * microsecond accuracy and your OS supports it, change
140 * %03ld to %06ld and remove " / 1000" after tv.tv_usec.
142 if (CC && CC->cs_pid) {
144 /* Millisecond display */
146 "%04d/%02d/%02d %2d:%02d:%02d.%03ld [%3d] %s",
147 tim->tm_year + 1900, tim->tm_mon + 1,
148 tim->tm_mday, tim->tm_hour, tim->tm_min,
149 tim->tm_sec, (long)tv.tv_usec / 1000,
152 /* Microsecond display */
154 "%04d/%02d/%02d %2d:%02d:%02d.%06ld [%3d] %s",
155 tim->tm_year + 1900, tim->tm_mon + 1,
156 tim->tm_mday, tim->tm_hour, tim->tm_min,
157 tim->tm_sec, (long)tv.tv_usec,
161 /* Millisecond display */
163 "%04d/%02d/%02d %2d:%02d:%02d.%03ld %s",
164 tim->tm_year + 1900, tim->tm_mon + 1,
165 tim->tm_mday, tim->tm_hour, tim->tm_min,
166 tim->tm_sec, (long)tv.tv_usec / 1000, buf);
168 /* Microsecond display */
170 "%04d/%02d/%02d %2d:%02d:%02d.%06ld %s",
171 tim->tm_year + 1900, tim->tm_mon + 1,
172 tim->tm_mday, tim->tm_hour, tim->tm_min,
173 tim->tm_sec, (long)tv.tv_usec, buf);
178 PerformLogHooks(loglevel, buf);
184 * We used to use master_cleanup() as a signal handler to shut down the server.
185 * however, master_cleanup() and the functions it calls do some things that
186 * aren't such a good idea to do from a signal handler: acquiring mutexes,
187 * playing with signal masks on BSDI systems, etc. so instead we install the
188 * following signal handler to set a global variable to inform the main loop
189 * that it's time to call master_cleanup() and exit.
192 volatile int time_to_die = 0;
194 static RETSIGTYPE signal_cleanup(int signum) {
200 * Some initialization stuff...
202 void init_sysdep(void) {
209 /* Set up a bunch of semaphores to be used for critical sections */
210 for (a=0; a<MAX_SEMAPHORES; ++a) {
211 pthread_mutex_init(&Critters[a], NULL);
215 * Set up a place to put thread-specific data.
216 * We only need a single pointer per thread - it points to the
217 * CitContext structure (in the ContextList linked list) of the
218 * session to which the calling thread is currently bound.
220 if (pthread_key_create(&MyConKey, NULL) != 0) {
221 lprintf(CTDL_CRIT, "Can't create TSD key!! %s\n", strerror(errno));
225 * The action for unexpected signals and exceptions should be to
226 * call signal_cleanup() to gracefully shut down the server.
228 signal(SIGINT, signal_cleanup);
229 signal(SIGQUIT, signal_cleanup);
230 signal(SIGHUP, signal_cleanup);
231 signal(SIGTERM, signal_cleanup);
234 * Do not shut down the server on broken pipe signals, otherwise the
235 * whole Citadel service would come down whenever a single client
238 signal(SIGPIPE, SIG_IGN);
243 * Obtain a semaphore lock to begin a critical section.
245 void begin_critical_section(int which_one)
247 /* lprintf(CTDL_DEBUG, "begin_critical_section(%d)\n", which_one); */
249 /* For all types of critical sections except those listed here,
250 * ensure nobody ever tries to do a critical section within a
251 * transaction; this could lead to deadlock.
253 if ( (which_one != S_FLOORCACHE)
254 #ifdef DEBUG_MEMORY_LEAKS
255 && (which_one != S_DEBUGMEMLEAKS)
260 pthread_mutex_lock(&Critters[which_one]);
264 * Release a semaphore lock to end a critical section.
266 void end_critical_section(int which_one)
268 pthread_mutex_unlock(&Critters[which_one]);
274 * This is a generic function to set up a master socket for listening on
275 * a TCP port. The server shuts down if the bind fails.
278 int ig_tcp_server(char *ip_addr, int port_number, int queue_len)
280 struct sockaddr_in sin;
282 int actual_queue_len;
284 actual_queue_len = queue_len;
285 if (actual_queue_len < 5) actual_queue_len = 5;
287 memset(&sin, 0, sizeof(sin));
288 sin.sin_family = AF_INET;
289 sin.sin_port = htons((u_short)port_number);
290 if (ip_addr == NULL) {
291 sin.sin_addr.s_addr = INADDR_ANY;
294 sin.sin_addr.s_addr = inet_addr(ip_addr);
297 if (sin.sin_addr.s_addr == INADDR_NONE) {
298 sin.sin_addr.s_addr = INADDR_ANY;
301 s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
304 lprintf(CTDL_EMERG, "citserver: Can't create a socket: %s\n",
310 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));
312 if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
313 lprintf(CTDL_EMERG, "citserver: Can't bind: %s\n",
319 if (listen(s, actual_queue_len) < 0) {
320 lprintf(CTDL_EMERG, "citserver: Can't listen: %s\n", strerror(errno));
331 * Create a Unix domain socket and listen on it
333 int ig_uds_server(char *sockpath, int queue_len)
335 struct sockaddr_un addr;
338 int actual_queue_len;
340 actual_queue_len = queue_len;
341 if (actual_queue_len < 5) actual_queue_len = 5;
343 i = unlink(sockpath);
344 if (i != 0) if (errno != ENOENT) {
345 lprintf(CTDL_EMERG, "citserver: can't unlink %s: %s\n",
346 sockpath, strerror(errno));
350 memset(&addr, 0, sizeof(addr));
351 addr.sun_family = AF_UNIX;
352 safestrncpy(addr.sun_path, sockpath, sizeof addr.sun_path);
354 s = socket(AF_UNIX, SOCK_STREAM, 0);
356 lprintf(CTDL_EMERG, "citserver: Can't create a socket: %s\n",
361 if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
362 lprintf(CTDL_EMERG, "citserver: Can't bind: %s\n",
367 if (listen(s, actual_queue_len) < 0) {
368 lprintf(CTDL_EMERG, "citserver: Can't listen: %s\n", strerror(errno));
372 chmod(sockpath, 0777);
379 * Return a pointer to the CitContext structure bound to the thread which
380 * called this function. If there's no such binding (for example, if it's
381 * called by the housekeeper thread) then a generic 'master' CC is returned.
383 * It's inlined because it's used *VERY* frequently.
385 INLINE struct CitContext *MyContext(void) {
386 return ((pthread_getspecific(MyConKey) == NULL)
388 : (struct CitContext *) pthread_getspecific(MyConKey)
394 * Initialize a new context and place it in the list. The session number
395 * used to be the PID (which is why it's called cs_pid), but that was when we
396 * had one process per session. Now we just assign them sequentially, starting
397 * at 1 (don't change it to 0 because masterCC uses 0) and re-using them when
398 * sessions terminate.
400 struct CitContext *CreateNewContext(void) {
401 struct CitContext *me, *ptr;
403 me = (struct CitContext *) malloc(sizeof(struct CitContext));
405 lprintf(CTDL_ALERT, "citserver: can't allocate memory!!\n");
408 memset(me, 0, sizeof(struct CitContext));
410 /* The new context will be created already in the CON_EXECUTING state
411 * in order to prevent another thread from grabbing it while it's
414 me->state = CON_EXECUTING;
418 * Generate a unique session number and insert this context into
421 begin_critical_section(S_SESSION_TABLE);
423 if (ContextList == NULL) {
429 else if (ContextList->cs_pid > 1) {
430 me->next = ContextList;
436 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
437 if (ptr->next == NULL) {
439 me->cs_pid = ptr->cs_pid + 1;
443 else if (ptr->next->cs_pid > (ptr->cs_pid+1)) {
444 me->next = ptr->next;
446 me->cs_pid = ptr->cs_pid + 1;
452 DONE: ++num_sessions;
453 end_critical_section(S_SESSION_TABLE);
459 * buffer_output() ... tell client_write to buffer all output until
460 * instructed to dump it all out later
462 void buffer_output(void) {
463 if (CC->buffering == 0) {
466 CC->output_buffer = malloc(SIZ);
471 * unbuffer_output() ... dump out all that output we've been buffering.
473 void unbuffer_output(void) {
474 if (CC->buffering == 1) {
476 client_write(CC->output_buffer, CC->buffer_len);
477 free(CC->output_buffer);
478 CC->output_buffer = NULL;
486 * client_write() ... Send binary data to the client.
488 void client_write(char *buf, int nbytes)
490 int bytes_written = 0;
493 int old_buffer_len = 0;
495 if (CC->redirect_fp != NULL) {
496 fwrite(buf, nbytes, 1, CC->redirect_fp);
500 if (CC->redirect_sock > 0) {
501 sock = CC->redirect_sock; /* and continue below... */
504 sock = CC->client_socket;
507 /* If we're buffering for later, do that now. */
509 old_buffer_len = CC->buffer_len;
510 CC->buffer_len += nbytes;
511 CC->output_buffer = realloc(CC->output_buffer, CC->buffer_len);
512 memcpy(&CC->output_buffer[old_buffer_len], buf, nbytes);
516 /* Ok, at this point we're not buffering. Go ahead and write. */
519 if (CC->redirect_ssl) {
520 client_write_ssl(buf, nbytes);
525 while (bytes_written < nbytes) {
526 retval = write(sock, &buf[bytes_written],
527 nbytes - bytes_written);
529 lprintf(CTDL_ERR, "client_write() failed: %s\n",
531 if (sock == CC->client_socket) CC->kill_me = 1;
534 bytes_written = bytes_written + retval;
540 * cprintf() ... Send formatted printable data to the client. It is
541 * implemented in terms of client_write() but remains in
542 * sysdep.c in case we port to somewhere without va_args...
544 void cprintf(const char *format, ...) {
548 va_start(arg_ptr, format);
549 if (vsnprintf(buf, sizeof buf, format, arg_ptr) == -1)
550 buf[sizeof buf - 2] = '\n';
551 client_write(buf, strlen(buf));
557 * Read data from the client socket.
559 * 1 Requested number of bytes has been read.
560 * 0 Request timed out.
561 * -1 The socket is broken.
562 * If the socket breaks, the session will be terminated.
564 int client_read_to(char *buf, int bytes, int timeout)
572 if (CC->redirect_ssl) {
573 return (client_read_ssl(buf, bytes, timeout));
579 FD_SET(CC->client_socket, &rfds);
583 retval = select( (CC->client_socket)+1,
584 &rfds, NULL, NULL, &tv);
586 if (FD_ISSET(CC->client_socket, &rfds) == 0) {
590 rlen = read(CC->client_socket, &buf[len], bytes-len);
592 lprintf(CTDL_ERR, "client_read() failed: %s\n",
603 * Read data from the client socket with default timeout.
604 * (This is implemented in terms of client_read_to() and could be
605 * justifiably moved out of sysdep.c)
607 INLINE int client_read(char *buf, int bytes)
609 return(client_read_to(buf, bytes, config.c_sleeping));
614 * client_gets() ... Get a LF-terminated line of text from the client.
615 * (This is implemented in terms of client_read() and could be
616 * justifiably moved out of sysdep.c)
618 int client_gets(char *buf)
622 /* Read one character at a time.
625 retval = client_read(&buf[i], 1);
626 if (retval != 1 || buf[i] == '\n' || i == (SIZ-1))
630 /* If we got a long line, discard characters until the newline.
633 while (buf[i] != '\n' && retval == 1)
634 retval = client_read(&buf[i], 1);
636 /* Strip the trailing newline and any trailing nonprintables (cr's)
639 while ((strlen(buf)>0)&&(!isprint(buf[strlen(buf)-1])))
640 buf[strlen(buf)-1] = 0;
641 if (retval < 0) strcpy(buf, "000");
648 * The system-dependent part of master_cleanup() - close the master socket.
650 void sysdep_master_cleanup(void) {
651 struct ServiceFunctionHook *serviceptr;
654 * close all protocol master sockets
656 for (serviceptr = ServiceHookTable; serviceptr != NULL;
657 serviceptr = serviceptr->next ) {
659 if (serviceptr->tcp_port > 0)
660 lprintf(CTDL_INFO, "Closing listener on port %d\n",
661 serviceptr->tcp_port);
663 if (serviceptr->sockpath != NULL)
664 lprintf(CTDL_INFO, "Closing listener on '%s'\n",
665 serviceptr->sockpath);
667 close(serviceptr->msock);
669 /* If it's a Unix domain socket, remove the file. */
670 if (serviceptr->sockpath != NULL) {
671 unlink(serviceptr->sockpath);
678 * Terminate another session.
679 * (This could justifiably be moved out of sysdep.c because it
680 * no longer does anything that is system-dependent.)
682 void kill_session(int session_to_kill) {
683 struct CitContext *ptr;
685 begin_critical_section(S_SESSION_TABLE);
686 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
687 if (ptr->cs_pid == session_to_kill) {
691 end_critical_section(S_SESSION_TABLE);
698 * Start running as a daemon. Only close stdio if do_close_stdio is set.
700 void start_daemon(int do_close_stdio) {
701 if (do_close_stdio) {
706 signal(SIGHUP,SIG_IGN);
707 signal(SIGINT,SIG_IGN);
708 signal(SIGQUIT,SIG_IGN);
709 if (fork()!=0) exit(0);
715 * Generic routine to convert a login name to a full name (gecos)
716 * Returns nonzero if a conversion took place
718 int convert_login(char NameToConvert[]) {
722 pw = getpwnam(NameToConvert);
727 strcpy(NameToConvert, pw->pw_gecos);
728 for (a=0; a<strlen(NameToConvert); ++a) {
729 if (NameToConvert[a] == ',') NameToConvert[a] = 0;
735 struct worker_node *worker_list = NULL;
739 * create a worker thread. this function must always be called from within
740 * an S_WORKER_LIST critical section!
742 void create_worker(void) {
744 struct worker_node *n;
747 n = malloc(sizeof(struct worker_node));
749 lprintf(CTDL_EMERG, "can't allocate worker_node, exiting\n");
754 if ((ret = pthread_attr_init(&attr))) {
755 lprintf(CTDL_EMERG, "pthread_attr_init: %s\n", strerror(ret));
760 /* we seem to need something bigger than FreeBSD's default 64k stack */
762 if ((ret = pthread_attr_setstacksize(&attr, 128 * 1024))) {
763 lprintf(CTDL_EMERG, "pthread_attr_setstacksize: %s\n", strerror(ret));
768 if ((ret = pthread_create(&n->tid, &attr, worker_thread, NULL) != 0))
771 lprintf(CTDL_ALERT, "Can't create worker thread: %s\n",
775 n->next = worker_list;
782 * Purge all sessions which have the 'kill_me' flag set.
783 * This function has code to prevent it from running more than once every
784 * few seconds, because running it after every single unbind would waste a lot
785 * of CPU time and keep the context list locked too much. To force it to run
786 * anyway, set "force" to nonzero.
789 * After that's done, we raise the size of the worker thread pool
790 * if such an action is appropriate.
792 void dead_session_purge(int force) {
793 struct CitContext *ptr, *rem;
796 if ( (time(NULL) - last_purge) < 5 ) {
797 return; /* Too soon, go away */
804 begin_critical_section(S_SESSION_TABLE);
805 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
806 if ( (ptr->state == CON_IDLE) && (ptr->kill_me) ) {
810 end_critical_section(S_SESSION_TABLE);
812 /* RemoveContext() enters its own S_SESSION_TABLE critical
813 * section, so we have to do it like this.
816 lprintf(CTDL_DEBUG, "Purging session %d\n", rem->cs_pid);
820 } while (rem != NULL);
822 /* Raise the size of the worker thread pool if necessary. */
824 if ( (num_sessions > num_threads)
825 && (num_threads < config.c_max_workers) ) {
826 begin_critical_section(S_WORKER_LIST);
828 end_critical_section(S_WORKER_LIST);
837 * Redirect a session's output to a file or socket.
838 * This function may be called with a file handle *or* a socket (but not
839 * both). Call with neither to return output to its normal client socket.
841 void CtdlRedirectOutput(FILE *fp, int sock) {
843 if (fp != NULL) CC->redirect_fp = fp;
844 else CC->redirect_fp = NULL;
846 if (sock > 0) CC->redirect_sock = sock;
847 else CC->redirect_sock = (-1);
853 * masterCC is the context we use when not attached to a session. This
854 * function initializes it.
856 void InitializeMasterCC(void) {
857 memset(&masterCC, 0, sizeof(struct CitContext));
858 masterCC.internal_pgm = 1;
868 * Bind a thread to a context. (It's inline merely to speed things up.)
870 INLINE void become_session(struct CitContext *which_con) {
871 pthread_setspecific(MyConKey, (void *)which_con );
877 * This loop just keeps going and going and going...
879 void *worker_thread(void *arg) {
882 struct CitContext *ptr;
883 struct CitContext *bind_me = NULL;
886 struct CitContext *con= NULL; /* Temporary context pointer */
887 struct ServiceFunctionHook *serviceptr;
888 int ssock; /* Descriptor for client socket */
897 while (!time_to_die) {
899 /* make doubly sure we're not holding any stale db handles
900 * which might cause a deadlock.
903 do_select: force_purge = 0;
904 bind_me = NULL; /* Which session shall we handle? */
906 /* Initialize the fdset. */
910 begin_critical_section(S_SESSION_TABLE);
911 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
912 if (ptr->state == CON_IDLE) {
913 FD_SET(ptr->client_socket, &readfds);
914 if (ptr->client_socket > highest)
915 highest = ptr->client_socket;
917 if ((bind_me == NULL) && (ptr->state == CON_READY)) {
919 ptr->state = CON_EXECUTING;
922 end_critical_section(S_SESSION_TABLE);
924 if (bind_me) goto SKIP_SELECT;
926 /* If we got this far, it means that there are no sessions
927 * which a previous thread marked for attention, so we go
928 * ahead and get ready to select().
931 /* First, add the various master sockets to the fdset. */
932 for (serviceptr = ServiceHookTable; serviceptr != NULL;
933 serviceptr = serviceptr->next ) {
934 m = serviceptr->msock;
942 tv.tv_sec = 1; /* wake up every second if no input */
944 retval = select(highest + 1, &readfds, NULL, NULL, &tv);
950 /* Now figure out who made this select() unblock.
951 * First, check for an error or exit condition.
954 if (errno == EBADF) {
955 lprintf(CTDL_NOTICE, "select() failed: (%s)\n",
959 if (errno != EINTR) {
960 lprintf(CTDL_EMERG, "Exiting (%s)\n", strerror(errno));
962 } else if (!time_to_die)
966 /* Next, check to see if it's a new client connecting
967 * on a master socket.
969 else for (serviceptr = ServiceHookTable; serviceptr != NULL;
970 serviceptr = serviceptr->next ) {
972 if (FD_ISSET(serviceptr->msock, &readfds)) {
973 ssock = accept(serviceptr->msock, NULL, 0);
976 "citserver: accept(): %s\n",
981 "New client socket %d\n",
984 /* New context will be created already
985 * set up in the CON_EXECUTING state.
987 con = CreateNewContext();
989 /* Assign new socket number to it. */
990 con->client_socket = ssock;
991 con->h_command_function =
992 serviceptr->h_command_function;
993 con->h_async_function =
994 serviceptr->h_async_function;
996 /* Determine whether local socket */
997 if (serviceptr->sockpath != NULL)
998 con->is_local_socket = 1;
1000 /* Set the SO_REUSEADDR socket option */
1002 setsockopt(ssock, SOL_SOCKET,
1006 become_session(con);
1008 serviceptr->h_greeting_function();
1009 become_session(NULL);
1010 con->state = CON_IDLE;
1020 /* It must be a client socket. Find a context that has data
1021 * waiting on its socket *and* is in the CON_IDLE state. Any
1022 * active sockets other than our chosen one are marked as
1023 * CON_READY so the next thread that comes around can just bind
1024 * to one without having to select() again.
1026 begin_critical_section(S_SESSION_TABLE);
1027 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
1028 if ( (FD_ISSET(ptr->client_socket, &readfds))
1029 && (ptr->state != CON_EXECUTING) ) {
1030 ptr->input_waiting = 1;
1032 bind_me = ptr; /* I choose you! */
1033 bind_me->state = CON_EXECUTING;
1036 ptr->state = CON_READY;
1040 end_critical_section(S_SESSION_TABLE);
1043 /* We're bound to a session */
1044 if (bind_me != NULL) {
1045 become_session(bind_me);
1047 /* If the client has sent a command, execute it. */
1048 if (CC->input_waiting) {
1049 CC->h_command_function();
1050 CC->input_waiting = 0;
1053 /* If there are asynchronous messages waiting and the
1054 * client supports it, do those now */
1055 if ((CC->is_async) && (CC->async_waiting)
1056 && (CC->h_async_function != NULL)) {
1057 CC->h_async_function();
1058 CC->async_waiting = 0;
1061 force_purge = CC->kill_me;
1062 become_session(NULL);
1063 bind_me->state = CON_IDLE;
1066 dead_session_purge(force_purge);
1068 check_sched_shutdown();
1071 /* If control reaches this point, the server is shutting down */
1081 * Translate text facility name to syslog.h defined value.
1083 int SyslogFacility(char *name)
1092 { LOG_KERN, "kern" },
1093 { LOG_USER, "user" },
1094 { LOG_MAIL, "mail" },
1095 { LOG_DAEMON, "daemon" },
1096 { LOG_AUTH, "auth" },
1097 { LOG_SYSLOG, "syslog" },
1099 { LOG_NEWS, "news" },
1100 { LOG_UUCP, "uucp" },
1101 { LOG_LOCAL0, "local0" },
1102 { LOG_LOCAL1, "local1" },
1103 { LOG_LOCAL2, "local2" },
1104 { LOG_LOCAL3, "local3" },
1105 { LOG_LOCAL4, "local4" },
1106 { LOG_LOCAL5, "local5" },
1107 { LOG_LOCAL6, "local6" },
1108 { LOG_LOCAL7, "local7" },
1111 for(i = 0; facTbl[i].name != NULL; i++) {
1112 if(!strcasecmp(name, facTbl[i].name))
1113 return facTbl[i].facility;
1119 /********** MEM CHEQQER ***********/
1121 #ifdef DEBUG_MEMORY_LEAKS
1128 void *tracked_malloc(size_t size, char *file, int line) {
1129 struct igheap *thisheap;
1132 block = malloc(size);
1133 if (block == NULL) return(block);
1135 thisheap = malloc(sizeof(struct igheap));
1136 if (thisheap == NULL) {
1141 thisheap->block = block;
1142 strcpy(thisheap->file, file);
1143 thisheap->line = line;
1145 begin_critical_section(S_DEBUGMEMLEAKS);
1146 thisheap->next = igheap;
1148 end_critical_section(S_DEBUGMEMLEAKS);
1154 void *tracked_realloc(void *ptr, size_t size, char *file, int line) {
1155 struct igheap *thisheap;
1158 block = realloc(ptr, size);
1159 if (block == NULL) return(block);
1161 thisheap = malloc(sizeof(struct igheap));
1162 if (thisheap == NULL) {
1167 thisheap->block = block;
1168 strcpy(thisheap->file, file);
1169 thisheap->line = line;
1171 begin_critical_section(S_DEBUGMEMLEAKS);
1172 thisheap->next = igheap;
1174 end_critical_section(S_DEBUGMEMLEAKS);
1181 void tracked_free(void *ptr) {
1182 struct igheap *thisheap;
1183 struct igheap *trash;
1187 if (igheap == NULL) return;
1188 begin_critical_section(S_DEBUGMEMLEAKS);
1189 for (thisheap = igheap; thisheap != NULL; thisheap = thisheap->next) {
1190 if (thisheap->next != NULL) {
1191 if (thisheap->next->block == ptr) {
1192 trash = thisheap->next;
1193 thisheap->next = thisheap->next->next;
1198 if (igheap->block == ptr) {
1200 igheap = igheap->next;
1203 end_critical_section(S_DEBUGMEMLEAKS);
1206 char *tracked_strdup(const char *s, char *file, int line) {
1209 if (s == NULL) return(NULL);
1210 ptr = tracked_malloc(strlen(s) + 1, file, line);
1211 if (ptr == NULL) return(NULL);
1212 strncpy(ptr, s, strlen(s));
1216 void dump_heap(void) {
1217 struct igheap *thisheap;
1219 for (thisheap = igheap; thisheap != NULL; thisheap = thisheap->next) {
1220 lprintf(CTDL_CRIT, "UNFREED: %30s : %d\n",
1221 thisheap->file, thisheap->line);
1225 #endif /* DEBUG_MEMORY_LEAKS */