int s6rc_read_uint (char const *file, unsigned int *u)
{
char buf[UINT_FMT + 1] ;
register int r = openreadnclose(file, buf, UINT_FMT) ;
if (r < 0) return (errno == ENOENT) ? 0 : -1 ;
buf[byte_chr(buf, r, '\n')] = 0 ;
if (!uint0_scan(buf, u)) return (errno = EINVAL, -1) ;
return 1 ;
}
static int
it_kill (direntry *d, void *data)
{
stralloc *sa = data;
char c;
int l;
int r;
/* ignore files, not-number dirs, PID 1 and ourself */
if (d->d_type != DT_DIR || *d->d_name < '1' || *d->d_name > '9'
|| str_equal (d->d_name, "1") || str_equal (d->d_name, ownpid))
return 0;
l = sa->len;
sa->s[l - 1] = '/';
if (stralloc_cats (sa, d->d_name)
&& stralloc_catb (sa, "/cmdline", sizeof ("/cmdline")))
r = openreadnclose (sa->s, &c, 1);
else
r = -1;
sa->len = l;
sa->s[l - 1] = '\0';
/* skip empty cmdline (kernel threads) and anything starting with '@' */
if (r == 1 && c != '@')
{
unsigned int u;
pid_t pid;
if (!uint_scan (d->d_name, &u))
goto done;
pid = (pid_t) u;
if (pid != u)
goto done;
if (send.hup)
_kill (pid, SIGHUP);
if (send.term)
{
_kill (pid, SIGTERM);
_kill (pid, SIGCONT);
}
if (send.kill)
_kill (pid, SIGKILL);
}
done:
return 0;
}
