initial commit

1 files changed, 50 insertions, 0 deletions

diff --git a/src/skaembutils/s6-nuke.c b/src/skaembutils/s6-nuke.c
new file mode 100644
index 0000000..cda1279
--- /dev/null
+++ b/src/skaembutils/s6-nuke.c
@@ -0,0 +1,50 @@
+/* ISC license. */
+
+#include <sys/types.h>
+#include <signal.h>
+#include <errno.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/sig.h>
+
+#define USAGE "s6-nuke [ -h | -t | -k ]"
+
+int main (int argc, char const *const *argv)
+{
+  int doterm = 0, dohangup = 0, dokill = 0 ;
+  PROG = "s6-nuke" ;
+  {
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      register int opt = subgetopt_r(argc, argv, "htk", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 'h': dohangup = 1 ; break ;
+        case 't': doterm = 1 ; break ;
+        case 'k': dokill = 1 ; break ;
+        default : strerr_dieusage(100, USAGE) ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+  }
+
+  if (dohangup)
+  {
+    sig_ignore(SIGHUP) ;
+    kill(-1, SIGHUP) ;
+  }
+
+  if (doterm)
+  {
+    sig_ignore(SIGTERM) ;
+    kill(-1, SIGTERM) ;
+    kill(-1, SIGCONT) ;
+  }
+
+  if (dokill) kill(-1, SIGKILL) ;
+
+  if (errno) strerr_diefu1sys(111, "kill") ;
+  return 0 ;
+}