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>
45 #include <arpa/inet.h>
58 #include "serv_extensions.h"
59 #include "sysdep_decls.h"
60 #include "citserver.h"
64 #include "housekeeping.h"
66 #include "serv_crypto.h"
68 #ifdef HAVE_SYS_SELECT_H
69 #include <sys/select.h>
77 #ifdef DEBUG_MEMORY_LEAKS
85 struct igheap *igheap = NULL;
89 pthread_mutex_t Critters[MAX_SEMAPHORES]; /* Things needing locking */
90 pthread_key_t MyConKey; /* TSD key for MyContext() */
92 int verbosity = DEFAULT_VERBOSITY; /* Logging level */
94 struct CitContext masterCC;
95 time_t last_purge = 0; /* Last dead session purge */
96 static int num_threads = 0; /* Current number of threads */
97 int num_sessions = 0; /* Current number of sessions */
99 int syslog_facility = (-1);
103 * lprintf() ... Write logging information
105 * Note: the variable "buf" below needs to be large enough to handle any
106 * log data sent through this function. BE CAREFUL!
108 void lprintf(enum LogLevel loglevel, const char *format, ...) {
112 va_start(arg_ptr, format);
113 vsnprintf(buf, sizeof(buf), format, arg_ptr);
116 if (syslog_facility >= 0) {
117 if (loglevel <= verbosity) {
119 if (CC && CC->cs_pid) {
120 memmove(buf + 6, buf, sizeof(buf) - 6);
121 snprintf(buf, 6, "[%3d]", CC->cs_pid);
124 syslog(loglevel, buf);
127 else if (loglevel <= verbosity) {
132 gettimeofday(&tv, NULL);
133 /* Promote to time_t; types differ on some OSes (like darwin) */
134 unixtime = tv.tv_sec;
135 localtime_r(&unixtime, &tim);
137 * Log provides millisecond accuracy. If you need
138 * microsecond accuracy and your OS supports it, change
139 * %03ld to %06ld and remove " / 1000" after tv.tv_usec.
141 if (CC && CC->cs_pid) {
143 /* Millisecond display */
145 "%04d/%02d/%02d %2d:%02d:%02d.%03ld [%3d] %s",
146 tim.tm_year + 1900, tim.tm_mon + 1,
147 tim.tm_mday, tim.tm_hour, tim.tm_min,
148 tim.tm_sec, (long)tv.tv_usec / 1000,
151 /* Microsecond display */
153 "%04d/%02d/%02d %2d:%02d:%02d.%06ld [%3d] %s",
154 tim.tm_year + 1900, tim.tm_mon + 1,
155 tim.tm_mday, tim.tm_hour, tim.tm_min,
156 tim.tm_sec, (long)tv.tv_usec,
160 /* Millisecond display */
162 "%04d/%02d/%02d %2d:%02d:%02d.%03ld %s",
163 tim.tm_year + 1900, tim.tm_mon + 1,
164 tim.tm_mday, tim.tm_hour, tim.tm_min,
165 tim.tm_sec, (long)tv.tv_usec / 1000, buf);
167 /* Microsecond display */
169 "%04d/%02d/%02d %2d:%02d:%02d.%06ld %s",
170 tim.tm_year + 1900, tim.tm_mon + 1,
171 tim.tm_mday, tim.tm_hour, tim.tm_min,
172 tim.tm_sec, (long)tv.tv_usec, buf);
177 PerformLogHooks(loglevel, buf);
183 * We used to use master_cleanup() as a signal handler to shut down the server.
184 * however, master_cleanup() and the functions it calls do some things that
185 * aren't such a good idea to do from a signal handler: acquiring mutexes,
186 * playing with signal masks on BSDI systems, etc. so instead we install the
187 * following signal handler to set a global variable to inform the main loop
188 * that it's time to call master_cleanup() and exit.
191 volatile int time_to_die = 0;
193 static RETSIGTYPE signal_cleanup(int signum) {
199 * Some initialization stuff...
201 void init_sysdep(void) {
208 /* Set up a bunch of semaphores to be used for critical sections */
209 for (a=0; a<MAX_SEMAPHORES; ++a) {
210 pthread_mutex_init(&Critters[a], NULL);
214 * Set up a place to put thread-specific data.
215 * We only need a single pointer per thread - it points to the
216 * CitContext structure (in the ContextList linked list) of the
217 * session to which the calling thread is currently bound.
219 if (pthread_key_create(&MyConKey, NULL) != 0) {
220 lprintf(CTDL_CRIT, "Can't create TSD key!! %s\n", strerror(errno));
224 * The action for unexpected signals and exceptions should be to
225 * call signal_cleanup() to gracefully shut down the server.
227 signal(SIGINT, signal_cleanup);
228 signal(SIGQUIT, signal_cleanup);
229 signal(SIGHUP, signal_cleanup);
230 signal(SIGTERM, signal_cleanup);
233 * Do not shut down the server on broken pipe signals, otherwise the
234 * whole Citadel service would come down whenever a single client
237 signal(SIGPIPE, SIG_IGN);
242 * Obtain a semaphore lock to begin a critical section.
244 void begin_critical_section(int which_one)
246 /* lprintf(CTDL_DEBUG, "begin_critical_section(%d)\n", which_one); */
248 /* For all types of critical sections except those listed here,
249 * ensure nobody ever tries to do a critical section within a
250 * transaction; this could lead to deadlock.
252 if ( (which_one != S_FLOORCACHE)
253 #ifdef DEBUG_MEMORY_LEAKS
254 && (which_one != S_DEBUGMEMLEAKS)
259 pthread_mutex_lock(&Critters[which_one]);
263 * Release a semaphore lock to end a critical section.
265 void end_critical_section(int which_one)
267 pthread_mutex_unlock(&Critters[which_one]);
273 * This is a generic function to set up a master socket for listening on
274 * a TCP port. The server shuts down if the bind fails.
277 int ig_tcp_server(char *ip_addr, int port_number, int queue_len)
279 struct sockaddr_in sin;
281 int actual_queue_len;
283 actual_queue_len = queue_len;
284 if (actual_queue_len < 5) actual_queue_len = 5;
286 memset(&sin, 0, sizeof(sin));
287 sin.sin_family = AF_INET;
288 sin.sin_port = htons((u_short)port_number);
289 if (ip_addr == NULL) {
290 sin.sin_addr.s_addr = INADDR_ANY;
293 sin.sin_addr.s_addr = inet_addr(ip_addr);
296 if (sin.sin_addr.s_addr == INADDR_NONE) {
297 sin.sin_addr.s_addr = INADDR_ANY;
300 s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
303 lprintf(CTDL_EMERG, "citserver: Can't create a socket: %s\n",
309 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));
311 if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
312 lprintf(CTDL_EMERG, "citserver: Can't bind: %s\n",
318 if (listen(s, actual_queue_len) < 0) {
319 lprintf(CTDL_EMERG, "citserver: Can't listen: %s\n", strerror(errno));
330 * Create a Unix domain socket and listen on it
332 int ig_uds_server(char *sockpath, int queue_len)
334 struct sockaddr_un addr;
337 int actual_queue_len;
339 actual_queue_len = queue_len;
340 if (actual_queue_len < 5) actual_queue_len = 5;
342 i = unlink(sockpath);
343 if (i != 0) if (errno != ENOENT) {
344 lprintf(CTDL_EMERG, "citserver: can't unlink %s: %s\n",
345 sockpath, strerror(errno));
349 memset(&addr, 0, sizeof(addr));
350 addr.sun_family = AF_UNIX;
351 safestrncpy(addr.sun_path, sockpath, sizeof addr.sun_path);
353 s = socket(AF_UNIX, SOCK_STREAM, 0);
355 lprintf(CTDL_EMERG, "citserver: Can't create a socket: %s\n",
360 if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
361 lprintf(CTDL_EMERG, "citserver: Can't bind: %s\n",
366 if (listen(s, actual_queue_len) < 0) {
367 lprintf(CTDL_EMERG, "citserver: Can't listen: %s\n", strerror(errno));
371 chmod(sockpath, 0777);
378 * Return a pointer to the CitContext structure bound to the thread which
379 * called this function. If there's no such binding (for example, if it's
380 * called by the housekeeper thread) then a generic 'master' CC is returned.
382 * This function is used *VERY* frequently and must be kept small.
384 struct CitContext *MyContext(void) {
386 register struct CitContext *c;
388 return ((c = (struct CitContext *) pthread_getspecific(MyConKey),
389 c == NULL) ? &masterCC : c
395 * Initialize a new context and place it in the list. The session number
396 * used to be the PID (which is why it's called cs_pid), but that was when we
397 * had one process per session. Now we just assign them sequentially, starting
398 * at 1 (don't change it to 0 because masterCC uses 0) and re-using them when
399 * sessions terminate.
401 struct CitContext *CreateNewContext(void) {
402 struct CitContext *me, *ptr;
404 me = (struct CitContext *) malloc(sizeof(struct CitContext));
406 lprintf(CTDL_ALERT, "citserver: can't allocate memory!!\n");
409 memset(me, 0, sizeof(struct CitContext));
411 /* The new context will be created already in the CON_EXECUTING state
412 * in order to prevent another thread from grabbing it while it's
415 me->state = CON_EXECUTING;
419 * Generate a unique session number and insert this context into
422 begin_critical_section(S_SESSION_TABLE);
424 if (ContextList == NULL) {
430 else if (ContextList->cs_pid > 1) {
431 me->next = ContextList;
437 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
438 if (ptr->next == NULL) {
440 me->cs_pid = ptr->cs_pid + 1;
444 else if (ptr->next->cs_pid > (ptr->cs_pid+1)) {
445 me->next = ptr->next;
447 me->cs_pid = ptr->cs_pid + 1;
453 DONE: ++num_sessions;
454 end_critical_section(S_SESSION_TABLE);
460 * buffer_output() ... tell client_write to buffer all output until
461 * instructed to dump it all out later
463 void buffer_output(void) {
464 if (CC->buffering == 0) {
467 CC->output_buffer = malloc(SIZ);
472 * flush_output() ... dump out all that output we've been buffering.
474 void flush_output(void) {
475 if (CC->buffering == 1) {
476 client_write(CC->output_buffer, CC->buffer_len);
482 * unbuffer_output() ... stop buffering output.
484 void unbuffer_output(void) {
485 if (CC->buffering == 1) {
487 /* We don't call flush_output because we can't. */
488 client_write(CC->output_buffer, CC->buffer_len);
490 free(CC->output_buffer);
491 CC->output_buffer = NULL;
498 * client_write() ... Send binary data to the client.
500 void client_write(char *buf, int nbytes)
502 int bytes_written = 0;
505 int old_buffer_len = 0;
507 if (CC->redirect_fp != NULL) {
508 fwrite(buf, nbytes, 1, CC->redirect_fp);
512 if (CC->redirect_sock > 0) {
513 sock = CC->redirect_sock; /* and continue below... */
516 sock = CC->client_socket;
519 /* If we're buffering for later, do that now. */
521 old_buffer_len = CC->buffer_len;
522 CC->buffer_len += nbytes;
523 CC->output_buffer = realloc(CC->output_buffer, CC->buffer_len);
524 memcpy(&CC->output_buffer[old_buffer_len], buf, nbytes);
528 /* Ok, at this point we're not buffering. Go ahead and write. */
531 if (CC->redirect_ssl) {
532 client_write_ssl(buf, nbytes);
537 while (bytes_written < nbytes) {
538 retval = write(sock, &buf[bytes_written],
539 nbytes - bytes_written);
541 lprintf(CTDL_ERR, "client_write() failed: %s\n",
543 if (sock == CC->client_socket) CC->kill_me = 1;
546 bytes_written = bytes_written + retval;
552 * cprintf() ... Send formatted printable data to the client. It is
553 * implemented in terms of client_write() but remains in
554 * sysdep.c in case we port to somewhere without va_args...
556 void cprintf(const char *format, ...) {
560 va_start(arg_ptr, format);
561 if (vsnprintf(buf, sizeof buf, format, arg_ptr) == -1)
562 buf[sizeof buf - 2] = '\n';
563 client_write(buf, strlen(buf));
569 * Read data from the client socket.
571 * 1 Requested number of bytes has been read.
572 * 0 Request timed out.
573 * -1 The socket is broken.
574 * If the socket breaks, the session will be terminated.
576 int client_read_to(char *buf, int bytes, int timeout)
584 if (CC->redirect_ssl) {
585 return (client_read_ssl(buf, bytes, timeout));
591 FD_SET(CC->client_socket, &rfds);
595 retval = select( (CC->client_socket)+1,
596 &rfds, NULL, NULL, &tv);
598 if (FD_ISSET(CC->client_socket, &rfds) == 0) {
602 rlen = read(CC->client_socket, &buf[len], bytes-len);
604 lprintf(CTDL_ERR, "client_read() failed: %s\n",
615 * Read data from the client socket with default timeout.
616 * (This is implemented in terms of client_read_to() and could be
617 * justifiably moved out of sysdep.c)
619 INLINE int client_read(char *buf, int bytes)
621 return(client_read_to(buf, bytes, config.c_sleeping));
626 * client_gets() ... Get a LF-terminated line of text from the client.
627 * (This is implemented in terms of client_read() and could be
628 * justifiably moved out of sysdep.c)
630 int client_gets(char *buf)
634 /* Read one character at a time.
637 retval = client_read(&buf[i], 1);
638 if (retval != 1 || buf[i] == '\n' || i == (SIZ-1))
642 /* If we got a long line, discard characters until the newline.
645 while (buf[i] != '\n' && retval == 1)
646 retval = client_read(&buf[i], 1);
648 /* Strip the trailing newline and any trailing nonprintables (cr's)
651 while ((strlen(buf)>0)&&(!isprint(buf[strlen(buf)-1])))
652 buf[strlen(buf)-1] = 0;
653 if (retval < 0) strcpy(buf, "000");
660 * The system-dependent part of master_cleanup() - close the master socket.
662 void sysdep_master_cleanup(void) {
663 struct ServiceFunctionHook *serviceptr;
666 * close all protocol master sockets
668 for (serviceptr = ServiceHookTable; serviceptr != NULL;
669 serviceptr = serviceptr->next ) {
671 if (serviceptr->tcp_port > 0)
672 lprintf(CTDL_INFO, "Closing listener on port %d\n",
673 serviceptr->tcp_port);
675 if (serviceptr->sockpath != NULL)
676 lprintf(CTDL_INFO, "Closing listener on '%s'\n",
677 serviceptr->sockpath);
679 close(serviceptr->msock);
681 /* If it's a Unix domain socket, remove the file. */
682 if (serviceptr->sockpath != NULL) {
683 unlink(serviceptr->sockpath);
690 * Terminate another session.
691 * (This could justifiably be moved out of sysdep.c because it
692 * no longer does anything that is system-dependent.)
694 void kill_session(int session_to_kill) {
695 struct CitContext *ptr;
697 begin_critical_section(S_SESSION_TABLE);
698 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
699 if (ptr->cs_pid == session_to_kill) {
703 end_critical_section(S_SESSION_TABLE);
710 * Start running as a daemon. Only close stdio if do_close_stdio is set.
712 void start_daemon(int do_close_stdio) {
713 if (do_close_stdio) {
718 signal(SIGHUP,SIG_IGN);
719 signal(SIGINT,SIG_IGN);
720 signal(SIGQUIT,SIG_IGN);
721 if (fork()!=0) exit(0);
727 * Generic routine to convert a login name to a full name (gecos)
728 * Returns nonzero if a conversion took place
730 int convert_login(char NameToConvert[]) {
734 pw = getpwnam(NameToConvert);
739 strcpy(NameToConvert, pw->pw_gecos);
740 for (a=0; a<strlen(NameToConvert); ++a) {
741 if (NameToConvert[a] == ',') NameToConvert[a] = 0;
747 struct worker_node *worker_list = NULL;
751 * create a worker thread. this function must always be called from within
752 * an S_WORKER_LIST critical section!
754 void create_worker(void) {
756 struct worker_node *n;
759 n = malloc(sizeof(struct worker_node));
761 lprintf(CTDL_EMERG, "can't allocate worker_node, exiting\n");
766 if ((ret = pthread_attr_init(&attr))) {
767 lprintf(CTDL_EMERG, "pthread_attr_init: %s\n", strerror(ret));
772 /* we seem to need something bigger than FreeBSD's default 64k stack */
774 if ((ret = pthread_attr_setstacksize(&attr, 128 * 1024))) {
775 lprintf(CTDL_EMERG, "pthread_attr_setstacksize: %s\n", strerror(ret));
777 pthread_attr_destroy(&attr);
781 if ((ret = pthread_create(&n->tid, &attr, worker_thread, NULL) != 0))
784 lprintf(CTDL_ALERT, "Can't create worker thread: %s\n",
788 n->next = worker_list;
790 pthread_attr_destroy(&attr);
796 * Purge all sessions which have the 'kill_me' flag set.
797 * This function has code to prevent it from running more than once every
798 * few seconds, because running it after every single unbind would waste a lot
799 * of CPU time and keep the context list locked too much. To force it to run
800 * anyway, set "force" to nonzero.
803 * After that's done, we raise the size of the worker thread pool
804 * if such an action is appropriate.
806 void dead_session_purge(int force) {
807 struct CitContext *ptr, *rem;
810 if ( (time(NULL) - last_purge) < 5 ) {
811 return; /* Too soon, go away */
818 begin_critical_section(S_SESSION_TABLE);
819 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
820 if ( (ptr->state == CON_IDLE) && (ptr->kill_me) ) {
824 end_critical_section(S_SESSION_TABLE);
826 /* RemoveContext() enters its own S_SESSION_TABLE critical
827 * section, so we have to do it like this.
830 lprintf(CTDL_DEBUG, "Purging session %d\n", rem->cs_pid);
834 } while (rem != NULL);
836 /* Raise the size of the worker thread pool if necessary. */
838 if ( (num_sessions > num_threads)
839 && (num_threads < config.c_max_workers) ) {
840 begin_critical_section(S_WORKER_LIST);
842 end_critical_section(S_WORKER_LIST);
851 * Redirect a session's output to a file or socket.
852 * This function may be called with a file handle *or* a socket (but not
853 * both). Call with neither to return output to its normal client socket.
855 void CtdlRedirectOutput(FILE *fp, int sock) {
857 if (fp != NULL) CC->redirect_fp = fp;
858 else CC->redirect_fp = NULL;
860 if (sock > 0) CC->redirect_sock = sock;
861 else CC->redirect_sock = (-1);
867 * masterCC is the context we use when not attached to a session. This
868 * function initializes it.
870 void InitializeMasterCC(void) {
871 memset(&masterCC, 0, sizeof(struct CitContext));
872 masterCC.internal_pgm = 1;
882 * Bind a thread to a context. (It's inline merely to speed things up.)
884 INLINE void become_session(struct CitContext *which_con) {
885 pthread_setspecific(MyConKey, (void *)which_con );
891 * This loop just keeps going and going and going...
893 void *worker_thread(void *arg) {
896 struct CitContext *ptr;
897 struct CitContext *bind_me = NULL;
900 struct CitContext *con= NULL; /* Temporary context pointer */
901 struct ServiceFunctionHook *serviceptr;
902 int ssock; /* Descriptor for client socket */
911 while (!time_to_die) {
913 /* make doubly sure we're not holding any stale db handles
914 * which might cause a deadlock.
917 do_select: force_purge = 0;
918 bind_me = NULL; /* Which session shall we handle? */
920 /* Initialize the fdset. */
924 begin_critical_section(S_SESSION_TABLE);
925 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
926 if (ptr->state == CON_IDLE) {
927 FD_SET(ptr->client_socket, &readfds);
928 if (ptr->client_socket > highest)
929 highest = ptr->client_socket;
931 if ((bind_me == NULL) && (ptr->state == CON_READY)) {
933 ptr->state = CON_EXECUTING;
936 end_critical_section(S_SESSION_TABLE);
938 if (bind_me) goto SKIP_SELECT;
940 /* If we got this far, it means that there are no sessions
941 * which a previous thread marked for attention, so we go
942 * ahead and get ready to select().
945 /* First, add the various master sockets to the fdset. */
946 for (serviceptr = ServiceHookTable; serviceptr != NULL;
947 serviceptr = serviceptr->next ) {
948 m = serviceptr->msock;
956 tv.tv_sec = 1; /* wake up every second if no input */
958 retval = select(highest + 1, &readfds, NULL, NULL, &tv);
961 if (time_to_die) return(NULL);
963 /* Now figure out who made this select() unblock.
964 * First, check for an error or exit condition.
967 if (errno == EBADF) {
968 lprintf(CTDL_NOTICE, "select() failed: (%s)\n",
972 if (errno != EINTR) {
973 lprintf(CTDL_EMERG, "Exiting (%s)\n", strerror(errno));
975 } else if (!time_to_die)
979 /* Next, check to see if it's a new client connecting
980 * on a master socket.
982 else for (serviceptr = ServiceHookTable; serviceptr != NULL;
983 serviceptr = serviceptr->next ) {
985 if (FD_ISSET(serviceptr->msock, &readfds)) {
986 ssock = accept(serviceptr->msock, NULL, 0);
989 "citserver: accept(): %s\n",
994 "New client socket %d\n",
997 /* New context will be created already
998 * set up in the CON_EXECUTING state.
1000 con = CreateNewContext();
1002 /* Assign new socket number to it. */
1003 con->client_socket = ssock;
1004 con->h_command_function =
1005 serviceptr->h_command_function;
1006 con->h_async_function =
1007 serviceptr->h_async_function;
1009 /* Determine whether local socket */
1010 if (serviceptr->sockpath != NULL)
1011 con->is_local_socket = 1;
1013 /* Set the SO_REUSEADDR socket option */
1015 setsockopt(ssock, SOL_SOCKET,
1019 become_session(con);
1021 serviceptr->h_greeting_function();
1022 become_session(NULL);
1023 con->state = CON_IDLE;
1029 /* It must be a client socket. Find a context that has data
1030 * waiting on its socket *and* is in the CON_IDLE state. Any
1031 * active sockets other than our chosen one are marked as
1032 * CON_READY so the next thread that comes around can just bind
1033 * to one without having to select() again.
1035 begin_critical_section(S_SESSION_TABLE);
1036 for (ptr = ContextList; ptr != NULL; ptr = ptr->next) {
1037 if ( (FD_ISSET(ptr->client_socket, &readfds))
1038 && (ptr->state != CON_EXECUTING) ) {
1039 ptr->input_waiting = 1;
1041 bind_me = ptr; /* I choose you! */
1042 bind_me->state = CON_EXECUTING;
1045 ptr->state = CON_READY;
1049 end_critical_section(S_SESSION_TABLE);
1052 /* We're bound to a session */
1053 if (bind_me != NULL) {
1054 become_session(bind_me);
1056 /* If the client has sent a command, execute it. */
1057 if (CC->input_waiting) {
1058 CC->h_command_function();
1059 CC->input_waiting = 0;
1062 /* If there are asynchronous messages waiting and the
1063 * client supports it, do those now */
1064 if ((CC->is_async) && (CC->async_waiting)
1065 && (CC->h_async_function != NULL)) {
1066 CC->h_async_function();
1067 CC->async_waiting = 0;
1070 force_purge = CC->kill_me;
1071 become_session(NULL);
1072 bind_me->state = CON_IDLE;
1075 dead_session_purge(force_purge);
1077 check_sched_shutdown();
1080 /* If control reaches this point, the server is shutting down */
1089 * Translate text facility name to syslog.h defined value.
1091 int SyslogFacility(char *name)
1100 { LOG_KERN, "kern" },
1101 { LOG_USER, "user" },
1102 { LOG_MAIL, "mail" },
1103 { LOG_DAEMON, "daemon" },
1104 { LOG_AUTH, "auth" },
1105 { LOG_SYSLOG, "syslog" },
1107 { LOG_NEWS, "news" },
1108 { LOG_UUCP, "uucp" },
1109 { LOG_LOCAL0, "local0" },
1110 { LOG_LOCAL1, "local1" },
1111 { LOG_LOCAL2, "local2" },
1112 { LOG_LOCAL3, "local3" },
1113 { LOG_LOCAL4, "local4" },
1114 { LOG_LOCAL5, "local5" },
1115 { LOG_LOCAL6, "local6" },
1116 { LOG_LOCAL7, "local7" },
1119 for(i = 0; facTbl[i].name != NULL; i++) {
1120 if(!strcasecmp(name, facTbl[i].name))
1121 return facTbl[i].facility;
1127 /********** MEM CHEQQER ***********/
1129 #ifdef DEBUG_MEMORY_LEAKS
1136 void *tracked_malloc(size_t size, char *file, int line) {
1137 struct igheap *thisheap;
1140 block = malloc(size);
1141 if (block == NULL) return(block);
1143 thisheap = malloc(sizeof(struct igheap));
1144 if (thisheap == NULL) {
1149 thisheap->block = block;
1150 strcpy(thisheap->file, file);
1151 thisheap->line = line;
1153 begin_critical_section(S_DEBUGMEMLEAKS);
1154 thisheap->next = igheap;
1156 end_critical_section(S_DEBUGMEMLEAKS);
1162 void *tracked_realloc(void *ptr, size_t size, char *file, int line) {
1163 struct igheap *thisheap;
1166 block = realloc(ptr, size);
1167 if (block == NULL) return(block);
1169 thisheap = malloc(sizeof(struct igheap));
1170 if (thisheap == NULL) {
1175 thisheap->block = block;
1176 strcpy(thisheap->file, file);
1177 thisheap->line = line;
1179 begin_critical_section(S_DEBUGMEMLEAKS);
1180 thisheap->next = igheap;
1182 end_critical_section(S_DEBUGMEMLEAKS);
1189 void tracked_free(void *ptr) {
1190 struct igheap *thisheap;
1191 struct igheap *trash;
1195 if (igheap == NULL) return;
1196 begin_critical_section(S_DEBUGMEMLEAKS);
1197 for (thisheap = igheap; thisheap != NULL; thisheap = thisheap->next) {
1198 if (thisheap->next != NULL) {
1199 if (thisheap->next->block == ptr) {
1200 trash = thisheap->next;
1201 thisheap->next = thisheap->next->next;
1206 if (igheap->block == ptr) {
1208 igheap = igheap->next;
1211 end_critical_section(S_DEBUGMEMLEAKS);
1214 char *tracked_strdup(const char *s, char *file, int line) {
1217 if (s == NULL) return(NULL);
1218 ptr = tracked_malloc(strlen(s) + 1, file, line);
1219 if (ptr == NULL) return(NULL);
1220 strncpy(ptr, s, strlen(s));
1224 void dump_heap(void) {
1225 struct igheap *thisheap;
1227 for (thisheap = igheap; thisheap != NULL; thisheap = thisheap->next) {
1228 lprintf(CTDL_CRIT, "UNFREED: %30s : %d\n",
1229 thisheap->file, thisheap->line);
1233 #endif /* DEBUG_MEMORY_LEAKS */