Initial commit

1 files changed, 70 insertions, 0 deletions

diff --git a/src/supervision/s6-svstat.c b/src/supervision/s6-svstat.c
new file mode 100644
index 0000000..c986b8d
--- /dev/null
+++ b/src/supervision/s6-svstat.c
@@ -0,0 +1,70 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <skalibs/uint64.h>
+#include <skalibs/uint.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/buffer.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/tai.h>
+#include <skalibs/djbunix.h>
+#include <s6/s6-supervise.h>
+
+#define USAGE "s6-svstat servicedir"
+
+int main (int argc, char const *const *argv)
+{
+  s6_svstatus_t status ;
+  char fmt[UINT_FMT] ;
+  int isup, normallyup ;
+  PROG = "s6-svstat" ;
+  if (argc < 2) strerr_dieusage(100, USAGE) ;
+  argv++ ; argc-- ;
+  if (!s6_svstatus_read(*argv, &status))
+    strerr_diefu2sys(111, "read status for ", *argv) ;
+
+  {
+    struct stat st ;
+    unsigned int dirlen = str_len(*argv) ;
+    char fn[dirlen + 6] ;
+    byte_copy(fn, dirlen, *argv) ;
+    byte_copy(fn + dirlen, 6, "/down") ;
+    if (stat(fn, &st) == -1)
+      if (errno != ENOENT) strerr_diefu2sys(111, "stat ", fn) ;
+      else normallyup = 1 ;
+    else normallyup = 0 ;
+  }
+
+  tain_now_g() ;
+  if (tain_future(&status.stamp)) tain_copynow(&status.stamp) ;
+  tain_sub(&status.stamp, &STAMP, &status.stamp) ;
+
+  isup = status.pid && !status.flagfinishing ;
+  if (isup)
+  {
+    buffer_putnoflush(buffer_1small,"up (pid ", 8) ;
+    buffer_putnoflush(buffer_1small, fmt, uint_fmt(fmt, status.pid)) ;
+    buffer_putnoflush(buffer_1small, ") ", 2) ;
+  }
+  else buffer_putnoflush(buffer_1small, "down ", 5) ;
+
+  buffer_putnoflush(buffer_1small, fmt, uint64_fmt(fmt, status.stamp.sec.x)) ;
+  buffer_putnoflush(buffer_1small," seconds", 8) ;
+
+  if (isup && !normallyup)
+    buffer_putnoflush(buffer_1small, ", normally down", 15) ;
+  if (!isup && normallyup)
+    buffer_putnoflush(buffer_1small, ", normally up", 13) ;
+  if (isup && status.flagpaused)
+    buffer_putnoflush(buffer_1small, ", paused", 8) ;
+  if (!isup && (status.flagwant == 'u'))
+    buffer_putnoflush(buffer_1small, ", want up", 10) ;
+  if (isup && (status.flagwant == 'd'))
+    buffer_putnoflush(buffer_1small, ", want down", 12) ;
+
+  if (buffer_putflush(buffer_1small, "\n", 1) < 0)
+    strerr_diefu1sys(111, "write to stdout") ;
+  return 0 ;
+}