1 files changed, 42 insertions, 6 deletions
diff --git a/src/supervision/s6-svstat.c b/src/supervision/s6-svstat.c
index c986b8d..a4facf5 100644
--- a/src/supervision/s6-svstat.c
+++ b/src/supervision/s6-svstat.c
@@ -1,27 +1,46 @@
 /* ISC license. */
 
-#include <errno.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <sys/wait.h>
+#include <errno.h>
 #include <skalibs/uint64.h>
 #include <skalibs/uint.h>
 #include <skalibs/bytestr.h>
 #include <skalibs/buffer.h>
 #include <skalibs/strerr2.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/sig.h>
 #include <skalibs/tai.h>
 #include <skalibs/djbunix.h>
 #include <s6/s6-supervise.h>
 
-#define USAGE "s6-svstat servicedir"
+#define USAGE "s6-svstat [ -n ] servicedir"
+#define dieusage() strerr_dieusage(100, USAGE)
 
 int main (int argc, char const *const *argv)
 {
   s6_svstatus_t status ;
-  char fmt[UINT_FMT] ;
+  int flagnum = 0 ;
   int isup, normallyup ;
+  char fmt[UINT_FMT] ;
   PROG = "s6-svstat" ;
-  if (argc < 2) strerr_dieusage(100, USAGE) ;
-  argv++ ; argc-- ;
+  {
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      register int opt = subgetopt_r(argc, argv, "n", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 'n' : flagnum = 1 ; break ;
+        default : dieusage() ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+  }
+  if (!argc) dieusage() ;
+
   if (!s6_svstatus_read(*argv, &status))
     strerr_diefu2sys(111, "read status for ", *argv) ;
 
@@ -48,7 +67,24 @@ int main (int argc, char const *const *argv)
     buffer_putnoflush(buffer_1small, fmt, uint_fmt(fmt, status.pid)) ;
     buffer_putnoflush(buffer_1small, ") ", 2) ;
   }
-  else buffer_putnoflush(buffer_1small, "down ", 5) ;
+  else
+  {
+    buffer_putnoflush(buffer_1small, "down (", 6) ;
+    if (WIFSIGNALED(status.wstat))
+    {
+      buffer_putnoflush(buffer_1small, "signal ", 7) ;
+      if (flagnum)
+        buffer_putnoflush(buffer_1small, fmt, uint_fmt(fmt, WTERMSIG(status.wstat))) ;
+      else
+        buffer_putsnoflush(buffer_1small, sig_name(WTERMSIG(status.wstat))) ;
+    }
+    else
+    {
+      buffer_putnoflush(buffer_1small, "exitcode ", 9) ;
+      buffer_putnoflush(buffer_1small, fmt, uint_fmt(fmt, WEXITSTATUS(status.wstat))) ;
+    }
+    buffer_putnoflush(buffer_1small, ") ", 2) ;
+  }
 
   buffer_putnoflush(buffer_1small, fmt, uint64_fmt(fmt, status.stamp.sec.x)) ;
   buffer_putnoflush(buffer_1small," seconds", 8) ;