contrib/tcsh/tc.who.c

68 #  define utmp utmpx
87 # include <utmp.h>
97 #  define UTNAMLEN	sizeof(((struct utmp *) 0)->ut_name)
98 #  define UTLINLEN	sizeof(((struct utmp *) 0)->ut_line)
103 #    define UTHOSTLEN	sizeof(((struct utmp *) 0)->ut_host)
108 struct utmp __ut;
125 #   define TCSH_PATH_UTMP "/etc/utmp"
192  * Watch /etc/utmp for login/logout changes.
200     struct utmp *uptr;
204     struct utmp utmp;
214     USE(utmp);
246      * Don't open utmp all the time, stat it first...
276      * xterm clears the entire utmp entry - mark everyone on the status list
283      * Read in the utmp file, sort the entries, and update existing entries or
288         memcpy(&utmp, uptr, sizeof (utmp));
290     while (xread(utmpfd, &utmp, sizeof utmp) == sizeof utmp) {
295 	if (utmp.ut_type != USER_PROCESS)
298 	/* Why is that? Cause the utmp file is always corrupted??? */
299 	if (utmp.ut_type != USER_PROCESS && utmp.ut_type != DEAD_PROCESS)
304 	if (utmp.ut_name[0] == '\0' && utmp.ut_line[0] == '\0')
307 	if (utmp.ut_type == DEAD_PROCESS && utmp.ut_line[0] == '\0')
311 	while (wp->who_next && (comp = strncmp(wp->who_tty, utmp.ut_line, UTLINLEN)) < 0)
315 	    if (utmp.ut_time < wp->who_time)
318 	    if (utmp.ut_type == DEAD_PROCESS) {
319 		wp->who_time = utmp.ut_time;
324 	    if (utmp.ut_name[0] == '\0') {
325 		wp->who_time = utmp.ut_time;
328 	    else if (strncmp(utmp.ut_name, wp->who_name, UTNAMLEN) == 0) {
330 		wp->who_time = utmp.ut_time;
334 		(void) strncpy(wp->who_new, utmp.ut_name, UTNAMLEN);
343 		(void) strncpy(wp->who_host, utmp.ut_host, UTHOSTLEN);
346 		wp->who_time = utmp.ut_time;
353 	else {		/* new tty in utmp */
355 	    (void) strncpy(wpnew->who_tty, utmp.ut_line, UTLINLEN);
364 	    (void) strncpy(wpnew->who_host, utmp.ut_host, UTHOSTLEN);
367 	    wpnew->who_time = utmp.ut_time;
369 	    if (utmp.ut_type == DEAD_PROCESS)
373 	    if (utmp.ut_name[0] == '\0')
376 		(void) strncpy(wpnew->who_new, utmp.ut_name, UTNAMLEN);
423 	    if (wp->who_status & CLEARED) {/* utmp entry was cleared */