/*
* The trap builtin.
*/
int
trapcmd(int argc __unused, char **argv)
{
char *action;
int signo;
int errors = 0;
int i;
while ((i = nextopt("l")) != '\0') {
switch (i) {
case 'l':
printsignals();
return (0);
}
}
argv = argptr;
if (*argv == NULL) {
for (signo = 0 ; signo < sys_nsig ; signo++) {
if (signo < NSIG && trap[signo] != NULL) {
out1str("trap -- ");
out1qstr(trap[signo]);
if (signo == 0) {
out1str(" EXIT\n");
} else if (sys_signame[signo]) {
out1fmt(" %s\n", sys_signame[signo]);
} else {
out1fmt(" %d\n", signo);
}
}
}
return 0;
}
action = NULL;
if (*argv && sigstring_to_signum(*argv) == -1) {
if (strcmp(*argv, "-") == 0)
argv++;
else {
action = *argv;
argv++;
}
}
for (; *argv; argv++) {
if ((signo = sigstring_to_signum(*argv)) == -1) {
warning("bad signal %s", *argv);
errors = 1;
continue;
}
INTOFF;
if (action)
action = savestr(action);
if (trap[signo])
ckfree(trap[signo]);
trap[signo] = action;
if (signo != 0)
setsignal(signo);
INTON;
}
return errors;
}
static void
nosig(const char *name)
{
warnx("unknown signal %s; valid signals:", name);
printsignals(stderr);
exit(1);
}
static void
nosig(char *name)
{
warnx("unknown signal %s; valid signals:", name);
printsignals(stderr);
exit(1);
/* NOTREACHED */
}
/*
* The trap builtin.
*/
int
trapcmd(int argc, char **argv)
{
char *action;
int signo;
if (argc <= 1) {
for (signo = 0 ; signo < _NSIG ; signo++) {
if (trap[signo] != NULL) {
if (signo == 0) {
out1fmt("trap -- '%s' %s\n",
trap[signo], "exit");
} else if (strsigname(signo)) {
out1fmt("trap -- '%s' %s\n",
trap[signo], strsigname(signo));
} else {
out1fmt("trap -- '%s' %d\n",
trap[signo], signo);
}
}
}
return 0;
}
action = NULL;
if (*++argv && strcmp(*argv, "--") == 0)
argv++;
if (*argv && sigstring_to_signum(*argv) == -1) {
if ((*argv)[0] != '-') {
action = *argv;
argv++;
} else if ((*argv)[1] == '\0') {
argv++;
} else if ((*argv)[1] == 'l' && (*argv)[2] == '\0') {
printsignals();
return 0;
} else {
error("bad option %s", *argv);
}
}
while (*argv) {
if ((signo = sigstring_to_signum(*argv)) == -1)
error("bad signal %s", *argv);
INTOFF;
if (action)
action = savestr(action);
if (trap[signo])
ckfree(trap[signo]);
trap[signo] = action;
if (signo != 0)
setsignal(signo);
INTON;
argv++;
}
return 0;
}
static void
nosig(const char *name)
{
warnx("unknown signal %s; valid signals:", name);
printsignals(stderr);
#ifdef SHELL
error(NULL);
#else
exit(2);
#endif
}
void printpage(ISystem *pSystem)
{
printf("\033[2J\033[1;1H\n");
char Text[80];
int t = pSystem->Values.tloop;
int t1 = pSystem->Values.tSleep;
sprintf(Text, "Loop %08ld t: %04dms (%02d%%) Sleep was: %04dms",
pSystem->Counter.MainLoops,
t, (t*100)/250, t1 );
cout << Text << "\r\n";
sprintf(Text, "CAN Frames received:%08ld sent:%08ld",
pSystem->Counter.CanFramesReceived,
pSystem->Counter.CanFramesSent);
cout << Text << "\r\n";
sprintf(Text, "BMZ Main %08ld bytes received",
pSystem->BmaMain.Vds.BmzBytesReceived);
cout << Text << "\r\n";
sprintf(Text, "BMZ Failover %08ld bytes received",
pSystem->BmaFailover.Vds.BmzBytesReceived);
cout << Text << "\r\n";
sprintf(Text, "VdS Frames received:%08ld errors:%08ld",
pSystem->BmaMain.Vds.pVdsInput->getFrameReceiveCount(),
pSystem->BmaMain.Vds.pVdsInput->getFrameErrorCount());
cout << Text << "\r\n";
printsignals(pSystem);
/* Some important values */
cout << "\r\n";
cout << "Keys:'1'/'0'' Simulation. 'q' to close..." << "\r\n";
}
int main(int argc, char const *argv[])
{
sigset_t s1,s2; //设置s1，s2信号集
sigemptyset(&s2); //将s2信号集清空
sigaddset(&s2,SIGINT); //设置信号到信号集
sigaddset(&s2,SIGQUIT);
sigprocmask(SIG_BLOCK,&s2,NULL); //改变信号的堵塞状态
int c = 0;
while(1)
{
sigpending(&s1); //获取系统未决信号集
printsignals(&s1);
c++;
if(c == 6)
{
sigdelset(&s2,SIGQUIT); //清除执行信号
sigprocmask(SIG_UNBLOCK,&s2,NULL);
}
sleep(1);
}
return 0;
}
int
trapcmd(int argc, char **argv)
{
char *action;
char **ap;
int signo;
if (argc <= 1) {
for (signo = 0 ; signo <= NSIG ; signo++)
if (trap[signo] != NULL) {
out1fmt("trap -- ");
print_quoted(trap[signo]);
out1fmt(" %s\n",
(signo) ? sys_signame[signo] : "EXIT");
}
return 0;
}
ap = argv + 1;
action = NULL;
if (strcmp(*ap, "--") == 0)
if (*++ap == NULL)
return 0;
if (signame_to_signum(*ap) == -1) {
if ((*ap)[0] == '-') {
if ((*ap)[1] == '\0')
ap++;
else if ((*ap)[1] == 'l' && (*ap)[2] == '\0') {
printsignals();
return 0;
}
else
error("bad option %s\n", *ap);
}
else
action = *ap++;
}
while (*ap) {
if (is_number(*ap))
signo = number(*ap);
else
signo = signame_to_signum(*ap);
if (signo < 0 || signo > NSIG)
error("%s: bad trap", *ap);
INTOFF;
if (action)
action = savestr(action);
if (trap[signo])
ckfree(trap[signo]);
trap[signo] = action;
if (signo != 0)
setsignal(signo, 0);
INTON;
ap++;
}
return 0;
}
void nosig (char *name)
{
fprintf (stderr, _("%s: unknown signal %s; valid signals:\n"), progname, name);
printsignals (stderr);
}
int main (int argc, char *argv[])
{
int errors, numsig, pid;
char *ep, *arg, *p;
int do_pid, do_kill, check_all;
int *pids, *ip;
progname = argv[0];
if ((p = strrchr(progname, '/')) != NULL)
progname = p+1;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
numsig = SIGTERM;
do_pid = (! strcmp (progname, "pid")); /* Yecch */
do_kill = 0;
check_all = 0;
/* loop through the arguments.
actually, -a is the only option can be used with other options.
`kill' is basically a one-option-at-most program. */
for (argc--, argv++; argc > 0; argc--, argv++) {
arg = *argv;
if (*arg != '-') {
break;
}
if (! strcmp (arg, "--")) {
argc--, argv++;
break;
}
if (! strcmp (arg, "-v") || ! strcmp (arg, "-V") ||
! strcmp (arg, "--version")) {
printf(_("%s from %s\n"), progname, PACKAGE_STRING);
return 0;
}
if (! strcmp (arg, "-a")) {
check_all++;
continue;
}
if (! strcmp (arg, "-l")) {
if (argc < 2) {
printsignals (stdout);
return 0;
}
if (argc > 2) {
return usage (1);
}
/* argc == 2, accept "kill -l $?" */
arg = argv[1];
if ((numsig = arg_to_signum (arg, 1)) < 0) {
fprintf (stderr, _("%s: unknown signal %s\n"), progname, arg);
return 1;
}
printsig (numsig);
return 0;
}
if (! strcmp (arg, "-p")) {
do_pid++;
if (do_kill)
return usage (1);
continue;
}
if (! strcmp (arg, "-s")) {
if (argc < 2) {
return usage (1);
}
do_kill++;
if (do_pid)
return usage (1);
argc--, argv++;
arg = *argv;
if ((numsig = arg_to_signum (arg, 0)) < 0) {
nosig (arg);
return 1;
}
continue;
}
if (! strcmp (arg, "-q")) {
if (argc < 2)
return usage (1);
argc--, argv++;
arg = *argv;
#ifdef HAVE_SIGQUEUE
sigdata.sival_int = strtol_or_err(arg, _("failed to parse sigval"));
use_sigval = 1;
#endif
continue;
}
/* `arg' begins with a dash but is not a known option.
so it's probably something like -HUP, or -1/-n
try to deal with it.
-n could be signal n, or pid -n (i.e. process group n).
In case of doubt POSIX tells us to assume a signal.
If a signal has been parsed, assume it's a pid, break */
if (do_kill)
break;
arg++;
if ((numsig = arg_to_signum (arg, 0)) < 0) {
return usage (1);
}
do_kill++;
if (do_pid)
return usage (1);
continue;
}
if (! *argv) {
return usage (1);
}
if (do_pid) {
numsig = -1;
}
/* we're done with the options.
the rest of the arguments should be process ids and names.
kill them. */
for (errors = 0; (arg = *argv) != NULL; argv++) {
pid = strtol (arg, &ep, 10);
if (! *ep)
errors += kill_verbose (arg, pid, numsig);
else {
pids = get_pids (arg, check_all);
if (! pids) {
errors++;
fprintf (stderr, _("%s: can't find process \"%s\"\n"),
progname, arg);
continue;
}
for (ip = pids; *ip >= 0; ip++)
errors += kill_verbose (arg, *ip, numsig);
free (pids);
}
}
return (errors);
}
int
main(int argc, char *argv[])
{
int errors, numsig, pid;
char *ep;
setprogname(argv[0]);
setlocale(LC_ALL, "");
if (argc < 2)
usage();
numsig = SIGTERM;
argc--, argv++;
if (strcmp(*argv, "-l") == 0) {
argc--, argv++;
if (argc > 1)
usage();
if (argc == 1) {
if (isdigit((unsigned char)**argv) == 0)
usage();
numsig = strtol(*argv, &ep, 10);
if (*ep != '\0') {
errx(EXIT_FAILURE, "illegal signal number: %s",
*argv);
/* NOTREACHED */
}
if (numsig >= 128)
numsig -= 128;
if (numsig <= 0 || numsig >= NSIG)
nosig(*argv);
printf("%s\n", sys_signame[numsig]);
exit(0);
}
printsignals(stdout);
exit(0);
}
if (!strcmp(*argv, "-s")) {
argc--, argv++;
if (argc < 1) {
warnx("option requires an argument -- s");
usage();
}
if (strcmp(*argv, "0")) {
if ((numsig = signame_to_signum(*argv)) < 0)
nosig(*argv);
} else
numsig = 0;
argc--, argv++;
} else if (**argv == '-') {
char *sn = *argv + 1;
if (isalpha((unsigned char)*sn)) {
if ((numsig = signame_to_signum(sn)) < 0)
nosig(sn);
} else if (isdigit((unsigned char)*sn)) {
numsig = strtol(sn, &ep, 10);
if (*ep) {
errx(EXIT_FAILURE, "illegal signal number: %s",
sn);
/* NOTREACHED */
}
if (numsig < 0 || numsig >= NSIG)
nosig(sn);
} else
nosig(sn);
argc--, argv++;
}
if (argc == 0)
usage();
for (errors = 0; argc; argc--, argv++) {
#ifdef SHELL
extern int getjobpgrp(const char *);
if (*argv[0] == '%') {
pid = getjobpgrp(*argv);
if (pid == 0) {
warnx("illegal job id: %s", *argv);
errors = 1;
continue;
}
} else
#endif
{
pid = strtol(*argv, &ep, 10);
if (!**argv || *ep) {
warnx("illegal process id: %s", *argv);
errors = 1;
continue;
}
}
if (kill(pid, numsig) == -1) {
warn("%s", *argv);
errors = 1;
}
#ifdef SHELL
/* Wakeup the process if it was suspended, so it can
exit without an explicit 'fg'. */
if (numsig == SIGTERM || numsig == SIGHUP)
kill(pid, SIGCONT);
#endif
}
exit(errors);
/* NOTREACHED */
}
int
main(int argc, char *argv[])
{
int errors, numsig, pid;
char *ep;
if (argc < 2)
usage();
numsig = SIGTERM;
argc--, argv++;
if (!strcmp(*argv, "-l")) {
argc--, argv++;
if (argc > 1)
usage();
if (argc == 1) {
if (!isdigit(**argv))
usage();
numsig = strtol(*argv, &ep, 10);
if (!**argv || *ep)
errx(2, "illegal signal number: %s", *argv);
if (numsig >= 128)
numsig -= 128;
if (numsig <= 0 || numsig >= sys_nsig)
nosig(*argv);
printf("%s\n", sys_signame[numsig]);
return (0);
}
printsignals(stdout);
return (0);
}
if (!strcmp(*argv, "-s")) {
argc--, argv++;
if (argc < 1) {
warnx("option requires an argument -- s");
usage();
}
if (strcmp(*argv, "0")) {
if ((numsig = signame_to_signum(*argv)) < 0)
nosig(*argv);
} else
numsig = 0;
argc--, argv++;
} else if (**argv == '-' && *(*argv + 1) != '-') {
++*argv;
if (isalpha(**argv)) {
if ((numsig = signame_to_signum(*argv)) < 0)
nosig(*argv);
} else if (isdigit(**argv)) {
numsig = strtol(*argv, &ep, 10);
if (!**argv || *ep)
errx(2, "illegal signal number: %s", *argv);
if (numsig < 0)
nosig(*argv);
} else
nosig(*argv);
argc--, argv++;
}
if (argc > 0 && strncmp(*argv, "--", 2) == 0)
argc--, argv++;
if (argc == 0)
usage();
for (errors = 0; argc; argc--, argv++) {
#ifdef SHELL
if (**argv == '%')
pid = getjobpgrp(*argv);
else
#endif
{
pid = strtol(*argv, &ep, 10);
if (!**argv || *ep)
errx(2, "illegal process id: %s", *argv);
}
if (kill(pid, numsig) == -1) {
warn("%s", *argv);
errors = 1;
}
}
return (errors);
}
int
main(int argc, char *argv[])
{
int errors, numsig, pid;
char *ep;
if (argc < 2)
usage();
numsig = SIGTERM;
argc--;
argv++;
if (!strcmp(*argv, "-l")) {
argc--, argv++;
if (argc > 1)
usage();
if (argc == 1) {
if (isdigit((unsigned char)**argv) == 0)
usage();
numsig = strtol(*argv, &ep, 10);
if (!*argv || *ep)
errx(1, "illegal signal number: %s", *argv);
if (numsig >= 128)
numsig -= 128;
if (numsig <= 0 || numsig >= NSIG)
nosig(*argv);
printf("%s\n", sys_signame[numsig]);
exit(0);
}
printsignals(stdout);
exit(0);
}
if (!strcmp(*argv, "-s")) {
argc--, argv++;
if (argc < 1) {
warnx("option requires an argument -- s");
usage();
}
if (strcmp(*argv, "0")) {
if ((numsig = signame_to_signum(*argv)) < 0)
nosig(*argv);
} else
numsig = 0;
argc--, argv++;
} else if (**argv == '-') {
++*argv;
if (isalpha(**argv)) {
if ((numsig = signame_to_signum(*argv)) < 0)
nosig(*argv);
} else if (isdigit(**argv)) {
numsig = strtol(*argv, &ep, 10);
if (!*argv || *ep)
errx(1, "illegal signal number: %s", *argv);
if (numsig <= 0 || numsig >= NSIG)
nosig(*argv);
} else
nosig(*argv);
argc--, argv++;
}
if (argc == 0)
usage();
for (errors = 0; argc; argc--, argv++) {
pid = strtol(*argv, &ep, 10);
if (!*argv || *ep) {
warnx("illegal process id: %s", *argv);
errors = 1;
} else if (kill(pid, numsig) == -1) {
warn("%s", *argv);
errors = 1;
}
}
exit(errors);
}
int
trapcmd(int argc, char **argv)
{
char *action;
char **ap;
int signo;
int errs = 0;
int printonly = 0;
ap = argv + 1;
if (argc == 2 && strcmp(*ap, "-l") == 0) {
printsignals();
return 0;
}
if (argc == 2 && strcmp(*ap, "-") == 0) {
for (signo = 0; signo < NSIG; signo++) {
if (trap[signo] == NULL)
continue;
INTOFF;
ckfree(trap[signo]);
trap[signo] = NULL;
if (signo != 0)
setsignal(signo, 0);
INTON;
}
return 0;
}
if (argc >= 2 && strcmp(*ap, "-p") == 0) {
printonly = 1;
ap++;
argc--;
}
if (argc > 1 && strcmp(*ap, "--") == 0) {
argc--;
ap++;
}
if (argc <= 1) {
int count;
if (printonly) {
for (count = 0, signo = 0 ; signo < NSIG ; signo++)
if (trap[signo] == NULL) {
if (count == 0)
out1str("trap -- -");
out1fmt(" %s", trap_signame(signo));
/* oh! unlucky 13 */
if (++count >= 13) {
out1str("\n");
count = 0;
}
}
if (count)
out1str("\n");
}
for (count = 0, signo = 0 ; signo < NSIG ; signo++)
if (trap[signo] != NULL && trap[signo][0] == '\0') {
if (count == 0)
out1str("trap -- ''");
out1fmt(" %s", trap_signame(signo));
/*
* the prefix is 10 bytes, with 4 byte
* signal names (common) we have room in
* the 70 bytes left on a normal line for
* 70/(4+1) signals, that's 14, but to
* allow for the occasional longer sig name
* we output one less...
*/
if (++count >= 13) {
out1str("\n");
count = 0;
}
}
if (count)
out1str("\n");
for (signo = 0 ; signo < NSIG ; signo++)
if (trap[signo] != NULL && trap[signo][0] != '\0') {
out1str("trap -- ");
print_quoted(trap[signo]);
out1fmt(" %s\n", trap_signame(signo));
}
return 0;
}
action = NULL;
if (!printonly && !is_number(*ap)) {
if ((*ap)[0] == '-' && (*ap)[1] == '\0')
ap++; /* reset to default */
else
action = *ap++; /* can be '' for "ignore" */
argc--;
}
if (argc < 2) { /* there must be at least 1 condition */
out2str("Usage: trap [-l]\n"
" trap -p [condition ...]\n"
" trap action condition ...\n"
" trap N condition ...\n");
return 2;
}
while (*ap) {
signo = signame_to_signum(*ap);
if (signo < 0 || signo >= NSIG) {
/* This is not a fatal error, so sayeth posix */
outfmt(out2, "trap: '%s' bad condition\n", *ap);
errs = 1;
ap++;
continue;
}
ap++;
if (printonly) {
out1str("trap -- ");
if (trap[signo] == NULL)
out1str("-");
else
print_quoted(trap[signo]);
out1fmt(" %s\n", trap_signame(signo));
continue;
}
INTOFF;
if (action)
action = savestr(action);
if (trap[signo])
ckfree(trap[signo]);
trap[signo] = action;
if (signo != 0)
setsignal(signo, 0);
INTON;
}
return errs;
}
int
trapcmd(shinstance *psh, int argc, char **argv)
{
char *action;
char **ap;
int signo;
#ifndef HAVE_SYS_SIGNAME
init_sys_signame();
#endif
if (argc <= 1) {
for (signo = 0 ; signo <= NSIG ; signo++)
if (psh->trap[signo] != NULL) {
out1fmt(psh, "trap -- ");
print_quoted(psh, psh->trap[signo]);
out1fmt(psh, " %s\n",
(signo) ? sys_signame[signo] : "EXIT");
}
return 0;
}
ap = argv + 1;
action = NULL;
if (strcmp(*ap, "--") == 0)
if (*++ap == NULL)
return 0;
if (signame_to_signum(psh, *ap) == -1) {
if ((*ap)[0] == '-') {
if ((*ap)[1] == '\0')
ap++;
else if ((*ap)[1] == 'l' && (*ap)[2] == '\0') {
printsignals(psh);
return 0;
}
else
error(psh, "bad option %s\n", *ap);
}
else
action = *ap++;
}
while (*ap) {
if (is_number(*ap))
signo = number(psh, *ap);
else
signo = signame_to_signum(psh, *ap);
if (signo < 0 || signo > NSIG)
error(psh, "%s: bad trap", *ap);
INTOFF;
if (action)
action = savestr(psh, action);
if (psh->trap[signo])
ckfree(psh, psh->trap[signo]);
psh->trap[signo] = action;
if (signo != 0)
setsignal(psh, signo, 0);
INTON;
ap++;
}
return 0;
}