Implement the nwchan keyword that has been in the man page, but was

not implemented. This is just handy if you want to ddb the address
some process is waiting on.

3 files changed, 15 insertions, 0 deletions

diff --git a/bin/ps/extern.h b/bin/ps/extern.h
index 54747a2..2ce5e45 100644
--- a/bin/ps/extern.h
+++ b/bin/ps/extern.h
@@ -63,6 +63,7 @@ void	 lstarted(KINFO *, VARENT *);
 void	 maxrss(KINFO *, VARENT *);
 void	 lockname(KINFO *, VARENT *);
 void	 mwchan(KINFO *, VARENT *);
+void	 nwchan(KINFO *, VARENT *);
 void	 pagein(KINFO *, VARENT *);
 void	 parsefmt(const char *, int);
 void	 pcpu(KINFO *, VARENT *);
diff --git a/bin/ps/keyword.c b/bin/ps/keyword.c
index d893d0f..918feca 100644
--- a/bin/ps/keyword.c
+++ b/bin/ps/keyword.c
@@ -127,6 +127,7 @@ static VAR var[] = {
 		LONG, "ld", 0},
 	{"nvcsw", "NVCSW", NULL, USER, rvar, NULL, 5, ROFF(ru_nvcsw),
 		LONG, "ld", 0},
+	{"nwchan", "NWCHAN", NULL, LJUST, nwchan, NULL, 8, 0, CHAR, NULL, 0},
 	{"oublk", "OUBLK", NULL, USER, rvar, NULL, 4, ROFF(ru_oublock),
 		LONG, "ld", 0},
 	{"oublock", "", "oublk", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
diff --git a/bin/ps/print.c b/bin/ps/print.c
index 7700491..7e0f816 100644
--- a/bin/ps/print.c
+++ b/bin/ps/print.c
@@ -457,6 +457,19 @@ wchan(KINFO *k, VARENT *ve)
 }
 
 void
+nwchan(KINFO *k, VARENT *ve)
+{
+	VAR *v;
+
+	v = ve->var;
+	if (k->ki_p->ki_wchan) {
+		(void)printf("%0*lx", v->width,
+		    (long)k->ki_p->ki_wchan);
+	} else
+		(void)printf("%-*s", v->width, "-");
+}
+
+void
 mwchan(KINFO *k, VARENT *ve)
 {
 	VAR *v;