int main(int argc,const char * const *argv,const char * const *envp)
{
char ch;
int wstat;
int pi[2];
int i;
int ignored;
if (!argv[1])
strerr_die1x(100,"fghack: usage: fghack child");
if (pipe(pi) == -1)
strerr_die2sys(111,FATAL,"unable to create pipe: ");
switch(pid = fork()) {
case -1:
strerr_die2sys(111,FATAL,"unable to fork: ");
case 0:
close(pi[0]);
for (i = 0;i < 30;++i)
ignored = dup(pi[1]);
pathexec_run(argv[1],argv + 1,envp);
strerr_die4sys(111,FATAL,"unable to run ",argv[1],": ");
}
close(pi[1]);
for (;;) {
i = buffer_unixread(pi[0],&ch,1);
if ((i == -1) && (errno == error_intr)) continue;
if (i == 1) continue;
break;
}
if (wait_pid(&wstat,pid) == -1)
strerr_die2sys(111,FATAL,"wait failed: ");
if (wait_crashed(wstat))
strerr_die2x(111,FATAL,"child crashed");
_exit(wait_exitcode(wstat));
}
void doit(char *dir)
{
struct stat st;
int r;
int fd;
const char *x;
const char *fntemp;
char status[40];
buffer_puts(&b,dir);
buffer_puts(&b,": ");
if (chdir(dir) == -1) {
x = error_str(errno);
buffer_puts(&b,"unable to chdir: ");
buffer_puts(&b,x);
return;
}
if (!svpath_init()) {
strerr_warn4(WARNING,"unable to set up control path for ",dir,": ",&strerr_sys);
return;
}
normallyup = 0;
if (stat("down",&st) == -1) {
if (errno != error_noent) {
x = error_str(errno);
buffer_puts(&b,"unable to stat down: ");
buffer_puts(&b,x);
return;
}
normallyup = 1;
}
if ((fntemp = svpath_make("/ok")) == 0) die_nomem();
fd = open_write(fntemp);
if (fd == -1) {
if (errno == error_nodevice) {
buffer_puts(&b,"supervise not running");
return;
}
x = error_str(errno);
buffer_puts(&b,"unable to open ");
buffer_puts(&b,fntemp);
buffer_puts(&b,": ");
buffer_puts(&b,x);
return;
}
close(fd);
if ((fntemp = svpath_make("/status")) == 0) die_nomem();
fd = open_read(fntemp);
if (fd == -1) {
x = error_str(errno);
buffer_puts(&b,"unable to open ");
buffer_puts(&b,fntemp);
buffer_puts(&b,": ");
buffer_puts(&b,x);
return;
}
r = buffer_unixread(fd,status,sizeof status);
close(fd);
if (r < 18) {
if (r == -1)
x = error_str(errno);
else
x = "bad format";
buffer_puts(&b,"unable to read ");
buffer_puts(&b,fntemp);
buffer_puts(&b,": ");
buffer_puts(&b,x);
return;
}
showstatus(status,r);
if (r >= 20+18) {
buffer_puts(&b,"\n");
buffer_puts(&b,dir);
buffer_puts(&b," log: ");
showstatus(status+20,r-20);
}
}
int main(int argc, const char * const *argv) {
int opt;
unsigned long sec =600;
int verbose =0;
int doexit =0;
int dokill =0;
int wdir;
int fd;
char status[20];
int r;
unsigned long pid;
struct tai start;
struct tai now;
progname =*argv;
while ((opt =getopt(argc, argv, "t:xkvV")) != opteof) {
switch(opt) {
case 't':
scan_ulong(optarg, &sec);
if ((sec < 1) || (sec > 6000)) usage();
break;
case 'x':
doexit =1;
break;
case 'k':
dokill =1;
break;
case 'v':
verbose =1;
break;
case 'V':
strerr_warn1(VERSION, 0);
case '?':
usage();
}
}
argv +=optind;
if (! argv || ! *argv) usage();
if ((wdir =open_read(".")) == -1)
fatal("unable to open current working directory");
for (dir =argv; *dir; ++dir) {
if (dir != argv)
if (fchdir(wdir) == -1) fatal("unable to switch to starting directory");
if (chdir(*dir) == -1) continue; /* bummer */
if ((fd =open_write("supervise/control")) == -1) continue; /* bummer */
if (write(fd, "dx", 1 +doexit) != (1 +doexit)) {
close(fd); continue; /* bummer */
}
close(fd);
}
dir =argv;
tai_now(&start);
while (*dir) {
if (fchdir(wdir) == -1) fatal("unable to switch to starting directory");
if (chdir(*dir) == -1) {
warn(*dir, ": unable to change directory: ", &strerr_sys);
continue;
}
if ((fd =open_write("supervise/ok")) == -1) {
if (errno == error_nodevice) {
if (verbose) strerr_warn3(INFO, *dir, ": runsv not running.", 0);
dir++;
}
else
warn(*dir, ": unable to open supervise/ok: ", &strerr_sys);
continue;
}
close(fd);
if ((fd =open_read("supervise/status")) == -1) {
warn(*dir, "unable to open supervise/status: ", &strerr_sys);
continue;
}
r =buffer_unixread(fd, status, 20);
close(fd);
if ((r < 18) || (r == 19)) { /* supervise compatibility */
if (r == -1)
warn(*dir, "unable to read supervise/status: ", &strerr_sys);
else
warn(*dir, ": unable to read supervise/status: bad format.", 0);
continue;
}
pid =(unsigned char)status[15];
pid <<=8; pid +=(unsigned char)status[14];
pid <<=8; pid +=(unsigned char)status[13];
pid <<=8; pid +=(unsigned char)status[12];
if (! doexit && ! pid) {
/* ok, service is down */
if (verbose) strerr_warn3(INFO, *dir, ": down.", 0);
dir++;
continue;
}
if (status[17] != 'd') { /* catch previous failures */
if ((fd =open_write("supervise/control")) == -1) {
warn(*dir, ": unable to open supervise/control: ", &strerr_sys);
continue;
}
if (write(fd, "dx", 1 +doexit) != (1 +doexit)) {
warn(*dir, ": unable to write to supervise/control: ", &strerr_sys);
close(fd);
continue;
}
close(fd);
}
tai_now(&now);
tai_sub(&now, &now, &start);
if (tai_approx(&now) >= sec) {
/* timeout */
if (verbose) strerr_warn2(INFO, "timeout.", 0);
if (dokill) {
if (chdir(*dir) == -1) {
warn(*dir, ": unable to change directory: ", &strerr_sys);
continue;
}
if ((fd =open_write("supervise/control")) == -1) {
if (errno == error_nodevice) {
if (verbose)
strerr_warn3(INFO, *dir, ": runsv not running.", 0);
dir++;
}
else
warn(*argv, ": unable to open supervise/control: ", &strerr_sys);
continue;
}
if (write(fd, "k", 1) != 1)
warn(*argv, ": unable to write to supervise/control: ", &strerr_sys);
else
strerr_warn3(INFO, *dir, ": killed.", 0);
close(fd);
dir++;
if (! *dir) _exit(111);
continue;
}
_exit(111);
}
sleep(1);
}
if (fchdir(wdir) == -1)
strerr_warn2(WARN, "unable to switch to starting directory: ", &strerr_sys);
close(wdir);
if (rc > 100) rc =100;
_exit(rc);
}
int main(int argc, const char * const *argv)
{
int opt;
int verbose =0;
char status[18];
int fd;
int is;
int r;
int wdir;
unsigned long pid;
struct tai when;
struct tai now;
char sulong[FMT_ULONG];
progname =*argv;
while ((opt =getopt(argc, argv, "s:vV")) != opteof)
{
switch(opt)
{
case 's':
scan_ulong(optarg, &sec);
if ((sec < 1) || (sec > 600)) usage();
break;
case 'v':
verbose =1;
break;
case 'V':
strerr_warn1("$Id: e2d6c574c5e56f9931323fbc0e539c7f9b829b73 $", 0);
case '?':
usage();
}
}
argv +=optind;
if (! argv || ! *argv) usage();
if ((wdir =open_read(".")) == -1)
fatal("unable to open current working directory");
dir =argv;
while (*dir)
{
if (dir != argv)
if (fchdir(wdir) == -1) fatal("unable to switch to starting directory");
if (chdir(*dir) == -1)
{
warn(*dir, ": unable to change directory: ", &strerr_sys);
continue;
}
if ((fd =open_write("supervise/ok")) == -1)
{
if (errno == error_nodevice)
warn(*dir, ": runsv not running.", 0);
else
warn(*dir, ": unable to open supervise/ok: ", &strerr_sys);
continue;
}
close(fd);
if ((fd =open_read("supervise/status")) == -1)
{
warn(*dir, "unable to open supervise/status: ", &strerr_sys);
continue;
}
r =buffer_unixread(fd, status, sizeof status);
close(fd);
if (r < sizeof status)
{
if (r == -1)
warn(*dir, "unable to read supervise/status: ", &strerr_sys);
else
warn(*dir, ": unable to read supervise/status: bad format.", 0);
continue;
}
pid =(unsigned char)status[15];
pid <<=8;
pid +=(unsigned char)status[14];
pid <<=8;
pid +=(unsigned char)status[13];
pid <<=8;
pid +=(unsigned char)status[12];
if (! pid)
{
warn(*dir, ": is down.", 0);
continue;
}
tai_unpack(status, &when);
tai_now(&now);
if (tai_less(&now, &when)) when =now;
tai_sub(&when, &now, &when);
is =tai_approx(&when);
if (is >= sec)
{
/* ok */
if (verbose)
{
sulong[fmt_ulong(sulong, is)] =0;
strerr_warn5(INFO, *dir, ": is up (", sulong, " seconds)", 0);
}
dir++;
continue;
}
sleep(sec -is);
}
if (fchdir(wdir) == -1)
strerr_warn2(WARN, "unable to switch to starting directory: ", &strerr_sys);
close(wdir);
if (rc > 100) rc =100;
_exit(rc);
}
void doit(char *dir)
{
struct stat st;
int r;
int fd;
const char *x;
struct tai when;
struct tai now;
buffer_puts(&b,dir);
buffer_puts(&b,": ");
if (chdir(dir) == -1) {
x = error_str(errno);
buffer_puts(&b,"unable to chdir: ");
buffer_puts(&b,x);
return;
}
normallyup = 0;
if (stat("down",&st) == -1) {
if (errno != error_noent) {
x = error_str(errno);
buffer_puts(&b,"unable to stat down: ");
buffer_puts(&b,x);
return;
}
normallyup = 1;
}
fd = open_write("supervise/ok");
if (fd == -1) {
if (errno == error_nodevice) {
buffer_puts(&b,"supervise not running");
return;
}
x = error_str(errno);
buffer_puts(&b,"unable to open supervise/ok: ");
buffer_puts(&b,x);
return;
}
close(fd);
fd = open_read("supervise/status");
if (fd == -1) {
x = error_str(errno);
buffer_puts(&b,"unable to open supervise/status: ");
buffer_puts(&b,x);
return;
}
r = buffer_unixread(fd,status,sizeof status);
close(fd);
if (r < sizeof status) {
if (r == -1)
x = error_str(errno);
else
x = "bad format";
buffer_puts(&b,"unable to read supervise/status: ");
buffer_puts(&b,x);
return;
}
pid = (unsigned char) status[15];
pid <<= 8; pid += (unsigned char) status[14];
pid <<= 8; pid += (unsigned char) status[13];
pid <<= 8; pid += (unsigned char) status[12];
paused = status[16];
want = status[17];
tai_unpack(status,&when);
tai_now(&now);
if (tai_less(&now,&when)) when = now;
tai_sub(&when,&now,&when);
if (pid) {
buffer_puts(&b,"up (pid ");
buffer_put(&b,strnum,fmt_ulong(strnum,pid));
buffer_puts(&b,") ");
}
else
buffer_puts(&b,"down ");
buffer_put(&b,strnum,fmt_ulong(strnum,tai_approx(&when)));
buffer_puts(&b," seconds");
if (pid && !normallyup)
buffer_puts(&b,", normally down");
if (!pid && normallyup)
buffer_puts(&b,", normally up");
if (pid && paused)
buffer_puts(&b,", paused");
if (!pid && (want == 'u'))
buffer_puts(&b,", want up");
if (pid && (want == 'd'))
buffer_puts(&b,", want down");
}