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/* ISC license. */
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <skalibs/uint64.h>
#include <skalibs/posixplz.h>
#include <skalibs/types.h>
#include <skalibs/strerr.h>
#include <skalibs/gol.h>
#include <skalibs/env.h>
#include <skalibs/sig.h>
#include <s6/supervise.h>
#include "s6-internal.h"
#define USAGE "s6 process kill [ --signal=sig ] services..."
#define dieusage() strerr_dieusage(100, USAGE)
static int process_kill_hack_kill (int sig, char const *const *argv)
{
size_t scandirlen = strlen(g->dirs.scan) ;
if (g->verbosity)
{
char fmt[INT_FMT] ;
fmt[int_fmt(fmt, sig)] = 0 ;
strerr_warnw3x("signal ", fmt, " is not natively supported by s6-svc, results may be unreliable") ;
}
for (; *argv ; argv++)
{
s6_svstatus_t status ;
size_t arglen = strlen(*argv) ;
char path[scandirlen + arglen + 2] ;
memcpy(path, g->dirs.scan, scandirlen) ;
path[scandirlen] = '/' ;
memcpy(path + scandirlen + 1, *argv, arglen) ;
path[scandirlen + 1 + arglen] = 0 ;
if (!s6_svstatus_read(path, &status))
strerr_diefu2sys(111, "read status file for service ", path) ;
if (status.pid && !status.flagfinishing) kill(status.pid, sig) ;
}
return 0 ;
}
enum process_kill_gola_e
{
PROCESS_KILL_GOLA_SIGNAL,
PROCESS_KILL_GOLA_N
} ;
static gol_arg const process_kill_gola[PROCESS_KILL_GOLA_N] =
{
{ .so = 's', .lo = "signal", .i = PROCESS_KILL_GOLA_SIGNAL },
} ;
int process_kill (char const *const *argv)
{
uint64_t golb = 0 ;
char const *gola[PROCESS_KILL_GOLA_N] = { 0 } ;
char const *svcopt = 0 ;
size_t argc ;
int sig = SIGTERM ;
PROG = "s6 process kill" ;
argv += gol_argv(argv, 0, 0, process_kill_gola, PROCESS_KILL_GOLA_N, &golb, gola) ;
if (!argv) dieusage() ;
if (gola[PROCESS_KILL_GOLA_SIGNAL])
{
if (!sig0_scan(gola[PROCESS_KILL_GOLA_SIGNAL], &sig))
strerr_dief1x(100, "--signal= argument must be the name or number of a signal") ;
}
argc = env_len(argv) ;
process_check_services(argv, argc) ;
switch (sig)
{
case SIGALRM : svcopt = "-a" ; break ;
case SIGABRT : svcopt = "-b" ; break ;
case SIGQUIT : svcopt = "-q" ; break ;
case SIGHUP : svcopt = "-h" ; break ;
case SIGKILL : svcopt = "-k" ; break ;
case SIGTERM : svcopt = "-t" ; break ;
case SIGINT : svcopt = "-i" ; break ;
case SIGUSR1 : svcopt = "-1" ; break ;
case SIGUSR2 : svcopt = "-2" ; break ;
case SIGSTOP : svcopt = "-p" ; break ;
case SIGCONT : svcopt = "-c" ; break ;
case SIGWINCH: svcopt = "-y" ; break ;
}
return svcopt ? process_send_svc(svcopt, argv, argc) : process_kill_hack_kill(sig, argv) ;
}
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