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Diffstat (limited to 'src/instance/s6-instance-status.c')
-rw-r--r--src/instance/s6-instance-status.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/src/instance/s6-instance-status.c b/src/instance/s6-instance-status.c
new file mode 100644
index 0000000..2c00a6e
--- /dev/null
+++ b/src/instance/s6-instance-status.c
@@ -0,0 +1,102 @@
+/* ISC license. */
+
+#include <string.h>
+
+#include <skalibs/bytestr.h>
+#include <skalibs/strerr.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/exec.h>
+
+#include <s6/config.h>
+
+#define USAGE "s6-instance-status [ -uwNrpest | -o up,wantedup,normallyup,ready,paused,pid,exitcode,signal,signum,updownsince,readysince,updownfor,readyfor ] [ -n ] service name"
+#define dieusage() strerr_dieusage(100, USAGE)
+
+#define MAXFIELDS 16
+#define checkfields() if (n++ >= MAXFIELDS) strerr_dief1x(100, "too many option fields")
+
+static unsigned int check_options (char const *arg, unsigned int n)
+{
+ static char const *table[] =
+ {
+ "up",
+ "wantedup",
+ "normallyup",
+ "ready",
+ "paused",
+ "pid",
+ "exitcode",
+ "signal",
+ "signum",
+ "updownsince",
+ "readysince",
+ "updownfor",
+ "readyfor",
+ 0
+ } ;
+ while (*arg)
+ {
+ size_t pos = str_chr(arg, ',') ;
+ char const *const *p = table ;
+ if (!pos) strerr_dief1x(100, "invalid null option field") ;
+ for (; *p ; p++) if (!strncmp(arg, *p, pos)) break ;
+ if (!p)
+ {
+ char blah[pos+1] ;
+ memcpy(blah, arg, pos) ;
+ blah[pos] = 0 ;
+ strerr_dief2x(100, "invalid option field: ", blah) ;
+ }
+ checkfields() ;
+ arg += pos ; if (*arg) arg++ ;
+ }
+ return n ;
+}
+
+int main (int argc, char const **argv)
+{
+ char const **fullargv = argv ;
+ size_t namelen ;
+ unsigned int n = 0 ;
+ PROG = "s6-instance-status" ;
+ {
+ subgetopt l = SUBGETOPT_ZERO ;
+ for (;;)
+ {
+ int opt = subgetopt_r(argc, argv, "no:uwNrpest", &l) ;
+ if (opt == -1) break ;
+ switch (opt)
+ {
+ case 'n' : break ;
+ case 'o' : n = check_options(l.arg, n) ; break ;
+ case 'u' :
+ case 'w' :
+ case 'N' :
+ case 'r' :
+ case 'p' :
+ case 'e' :
+ case 's' :
+ case 't' : if (n++ >= MAXFIELDS) strerr_dief1x(100, "too many option fields") ; break ;
+ default : dieusage() ;
+ }
+ }
+ argc -= l.ind ; argv += l.ind ;
+ }
+ if (argc < 2) dieusage() ;
+ namelen = strlen(argv[1]) ;
+ if (!argv[0][0]) strerr_dief1x(100, "invalid service name") ;
+ if (!argv[1][0] || argv[1][0] == '.' || byte_in(argv[1], namelen, " \t\f\r\n", 5) < namelen)
+ strerr_dief1x(100, "invalid instance name") ;
+
+ {
+ size_t svlen = strlen(argv[0]) ;
+ char fn[svlen + 11 + namelen] ;
+ memcpy(fn, argv[0], svlen) ;
+ memcpy(fn + svlen, "/instance/", 10) ;
+ memcpy(fn + svlen + 10, argv[1], namelen + 1) ;
+ argv[0] = fn ;
+ argv[1] = 0 ;
+ fullargv[0] = S6_BINPREFIX "s6-svstat" ;
+ xexec(fullargv) ;
+ }
+}