/******************************************************************************
* Callback to update parameters on the fly
******************************************************************************/
static int paramCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys = (filter_sys_t *) p_data;
if( !strncmp( psz_var, "delay-time", 10 ) )
{
/* if invalid value pretend everything is OK without updating value */
if( newval.f_float < 0 )
return VLC_SUCCESS;
p_sys->f_delayTime = newval.f_float;
if( !reallocate_buffer( p_filter, p_sys ) )
{
p_sys->f_delayTime = oldval.f_float;
p_sys->i_bufferLength = p_sys->i_channels * ( (int)
( ( p_sys->f_delayTime + p_sys->f_sweepDepth ) *
p_filter->fmt_in.audio.i_rate/1000 ) + 1 );
}
}
else if( !strncmp( psz_var, "sweep-depth", 11 ) )
{
if( newval.f_float < 0 || newval.f_float > p_sys->f_delayTime)
return VLC_SUCCESS;
p_sys->f_sweepDepth = newval.f_float;
if( !reallocate_buffer( p_filter, p_sys ) )
{
p_sys->f_sweepDepth = oldval.f_float;
p_sys->i_bufferLength = p_sys->i_channels * ( (int)
( ( p_sys->f_delayTime + p_sys->f_sweepDepth ) *
p_filter->fmt_in.audio.i_rate/1000 ) + 1 );
}
}
else if( !strncmp( psz_var, "sweep-rate", 10 ) )
{
if( newval.f_float > p_sys->f_sweepDepth )
return VLC_SUCCESS;
p_sys->f_sweepRate = newval.f_float;
/* Calculate new f_sinMultiplier */
if( p_sys->f_sweepDepth < small_value() ||
p_filter->fmt_in.audio.i_rate < small_value() ) {
p_sys->f_sinMultiplier = 0.0;
}
else {
p_sys->f_sinMultiplier = 11 * p_sys->f_sweepRate /
( 7 * p_sys->f_sweepDepth * p_filter->fmt_in.audio.i_rate ) ;
}
}
else if( !strncmp( psz_var, "feedback-gain", 13 ) )
p_sys->f_feedbackGain = newval.f_float;
else if( !strncmp( psz_var, "wet-mix", 7 ) )
p_sys->f_wetLevel = newval.f_float;
else if( !strncmp( psz_var, "dry-mix", 7 ) )
p_sys->f_dryLevel = newval.f_float;
return VLC_SUCCESS;
}
int
main(int ac, char **av)
{
int i, j;
int aflag = 0;
int uflag = 0;
int fpos; /* current position in time format buffer */
int chrcnt; /* # of chars formatted by current sprintf */
int bl, wtmp;
char *ct;
char *ut_host;
char *ut_user;
struct utmpx *bp;
time_t otime;
struct stat stb;
int print = 0;
char *crmsg = (char *)0;
long outrec = 0;
long maxrec = 0x7fffffffL;
char *wtmpfile = "/var/adm/wtmpx";
size_t hostf_len;
(void) setlocale(LC_ALL, "");
#if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
#define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't. */
#endif
(void) textdomain(TEXT_DOMAIN);
(void) time(&buf[0].ut_xtime);
ac--, av++;
argc = ac;
argv = av;
names = malloc(argc * sizeof (char *));
if (names == NULL) {
perror("first");
exit(2);
}
names_num = 0;
for (i = 0; i < argc; i++) {
if (argv[i][0] == '-') {
/* -[0-9]* sets max # records to print */
if (isdigit(argv[i][1])) {
maxrec = atoi(argv[i]+1);
continue;
}
for (j = 1; argv[i][j] != '\0'; ++j) {
switch (argv[i][j]) {
/* -f name sets filename of wtmp file */
case 'f':
if (argv[i][j+1] != '\0') {
wtmpfile = &argv[i][j+1];
} else if (i+1 < argc) {
wtmpfile = argv[++i];
} else {
(void) fprintf(stderr,
gettext("first: argument to "
"-f is missing\n"));
(void) fprintf(stderr,
gettext(USAGE));
exit(1);
}
goto next_word;
/* -n number sets max # records to print */
case 'n': {
char *arg;
if (argv[i][j+1] != '\0') {
arg = &argv[i][j+1];
} else if (i+1 < argc) {
arg = argv[++i];
} else {
(void) fprintf(stderr,
gettext("first: argument to "
"-n is missing\n"));
(void) fprintf(stderr,
gettext(USAGE));
exit(1);
}
if (!isdigit(*arg)) {
(void) fprintf(stderr,
gettext("first: argument to "
"-n is not a number\n"));
(void) fprintf(stderr,
gettext(USAGE));
exit(1);
}
maxrec = atoi(arg);
goto next_word;
}
/* -a displays hostname last on the line */
case 'a':
aflag++;
break;
/* -u displays times in UNIX epoch format */
case 'u':
uflag++;
break;
default:
(void) fprintf(stderr, gettext(USAGE));
exit(1);
}
}
next_word:
continue;
}
if (strlen(argv[i]) > 2 || strcmp(argv[i], "~") == 0 ||
getpwnam(argv[i]) != NULL) {
/* Not a tty number. */
names[names_num] = argv[i];
++names_num;
} else {
/* tty number. Prepend "tty". */
names[names_num] = strspl("tty", argv[i]);
++names_num;
}
}
wtmp = open(wtmpfile, O_RDONLY | O_LARGEFILE);
if (wtmp < 0) {
perror(wtmpfile);
exit(1);
}
(void) fstat(wtmp, &stb);
bl = (stb.st_size + sizeof (buf)-1) / sizeof (buf);
if (signal(SIGINT, SIG_IGN) != SIG_IGN) {
(void) signal(SIGINT, onintr);
(void) signal(SIGQUIT, onintr);
}
lines = CHUNK_SIZE;
ttnames = calloc(lines, sizeof (char *));
logouts = calloc(lines, sizeof (time_t));
if (ttnames == NULL || logouts == NULL) {
(void) fprintf(stderr, gettext("Out of memory \n "));
exit(2);
}
for (bl--; bl >= 0; bl--) {
(void) lseek(wtmp, (off_t)(bl * sizeof (buf)), 0);
bp = &buf[read(wtmp, buf, sizeof (buf)) / sizeof (buf[0]) - 1];
for (; bp >= buf; bp--) {
if (want(bp, &ut_host, &ut_user)) {
for (i = 0; i <= lines; i++) {
if (i == lines)
reallocate_buffer();
if (ttnames[i] == NULL) {
memory_alloc(i);
/*
* LMAX+HMAX+NMAX+3 bytes have been
* allocated for ttnames[i].
* If bp->ut_line is longer than LMAX,
* ut_host is longer than HMAX,
* and ut_user is longer than NMAX,
* truncate it to fit ttnames[i].
*/
(void) strlcpy(ttnames[i], bp->ut_line,
LMAX+1);
(void) strlcpy(ttnames[i]+LMAX+1,
ut_host, HMAX+1);
(void) strlcpy(ttnames[i]+LMAX+HMAX+2,
ut_user, NMAX+1);
record_time(&otime, &print,
i, bp);
break;
} else if (linehostnameq(ttnames[i],
bp->ut_line, ut_host, ut_user)) {
record_time(&otime,
&print, i, bp);
break;
}
}
}
if (print) {
if (strncmp(bp->ut_line, "ftp", 3) == 0)
bp->ut_line[3] = '\0';
if (strncmp(bp->ut_line, "uucp", 4) == 0)
bp->ut_line[4] = '\0';
ct = ctime(&bp->ut_xtime);
(void) printf(gettext("%-*.*s %-*.*s "),
NMAX, NMAX, bp->ut_name,
LMAX, LMAX, bp->ut_line);
hostf_len = strlen(bp->ut_host);
(void) snprintf(hostf, sizeof (hostf),
"%-*.*s", hostf_len, hostf_len,
bp->ut_host);
if(uflag) {
fpos = snprintf(timef, sizeof (timef),
"%10lu ", bp->ut_xtime);
} else {
fpos = snprintf(timef, sizeof (timef),
"%10.10s %13.13s ", /* MJC 8 extra chars */
ct, 11 + ct);
}
if (!lineq(bp->ut_line, "system boot") &&
!lineq(bp->ut_line, "system down")) {
if (otime == 0 &&
bp->ut_type == USER_PROCESS) {
if (fpos < sizeof (timef)) {
/* timef still has room */
(void) snprintf(timef + fpos, sizeof (timef) - fpos,
gettext(" still logged in"));
}
} else {
time_t delta;
if (otime < 0) {
otime = -otime;
/*
* TRANSLATION_NOTE
* See other notes on "down"
* and "- %5.5s".
* "-" means "until". This
* is displayed after the
* starting time as in:
* 16:20 - down
* You probably don't want to
* translate this. Should you
* decide to translate this,
* translate "- %5.5s" too.
*/
if (fpos < sizeof (timef)) {
/* timef still has room */
if(uflag) {
chrcnt = snprintf(timef + fpos, sizeof (timef) - fpos,
gettext("- %-10s"), crmsg);
} else {
chrcnt = snprintf(timef + fpos, sizeof (timef) - fpos,
gettext("- %-24s"), crmsg);
}
fpos += chrcnt;
}
} else {
if (fpos < sizeof (timef)) {
/* timef still has room */
if(uflag) {
chrcnt = snprintf(timef + fpos, sizeof (timef) - fpos,
gettext("- %10lu"), otime);
} else {
chrcnt = snprintf(timef + fpos, sizeof (timef) - fpos,
gettext("- %10.10s %13.13s"), ctime(&otime), ctime(&otime) + 11); /* MJC 19 extra chars */
}
fpos += chrcnt;
}
}
delta = otime - bp->ut_xtime;
if (delta < SECDAY) {
if (fpos < sizeof (timef)) {
/* timef still has room */
(void) snprintf(timef + fpos, sizeof (timef) - fpos,
gettext(" (%5.5s)"), asctime(gmtime(&delta)) + 11);
}
} else {
if (fpos < sizeof (timef)) {
/* timef still has room */
(void) snprintf(timef + fpos, sizeof (timef) - fpos,
gettext(" (%ld+%5.5s)"), delta / SECDAY,
asctime(gmtime(&delta)) + 11);
}
}
}
}
if (aflag)
(void) printf("%-62.62s %-.*s\n", /* MJC */
timef, strlen(hostf), hostf);
else
(void) printf("%-16.16s %-.62s\n", /* MJC */
hostf, timef);
(void) fflush(stdout);
if (++outrec >= maxrec)
exit(0);
}
/*
* when the system is down or crashed.
*/
if (bp->ut_type == BOOT_TIME) {
for (i = 0; i < lines; i++)
logouts[i] = -bp->ut_xtime;
bootxtime = -bp->ut_xtime;
/*
* TRANSLATION_NOTE
* Translation of this "down " will replace
* the %s in "- %s". "down" is used instead
* of the real time session was ended, probably
* because the session ended by a sudden crash.
*/
crmsg = gettext("down ");
}
print = 0; /* reset the print flag */
}
}
if(uflag) {
(void) printf(gettext("\nwtmp begins %lu \n"), buf[0].ut_xtime);
} else {
ct = ctime(&buf[0].ut_xtime);
(void) printf(gettext("\nwtmp begins %24.24s \n"), ct);
}
/* free() called to prevent lint warning about names */
free(names);
return (0);
}
