This makes fstat(1) behave more like grep(1), regarding exit status.
The idea itself came from bluhm@.
For manpage, I mostly copied the text from grep(1), but changed
phrases talking about selected lines to matching processes. Or
should those be selected processes?..
--
WBR,
Vadim Zhukov
Index: fstat.1
===================================================================
RCS file: /cvs/src/usr.bin/fstat/fstat.1,v
retrieving revision 1.51
diff -u -p -r1.51 fstat.1
--- fstat.1 31 Jan 2015 19:33:45 -0000 1.51
+++ fstat.1 4 May 2016 01:43:05 -0000
@@ -278,6 +278,19 @@ Each
.Xr systrace 4
device is printed with only the kernel address of the
device private data.
+.Sh EXIT STATUS
+The
+.Nm
+utility exits with one of the following values:
+.Pp
+.Bl -tag -width Ds -offset indent -compact
+.It Li 0
+One or more matching processes were found.
+.It Li 1
+No processes matching given criteria were found.
+.It Li \*(Gt1
+An error occurred.
+.El
.Sh SEE ALSO
.Xr netstat 1 ,
.Xr nfsstat 1 ,
Index: fstat.c
===================================================================
RCS file: /cvs/src/usr.bin/fstat/fstat.c,v
retrieving revision 1.86
diff -u -p -r1.86 fstat.c
--- fstat.c 2 Jan 2016 13:22:52 -0000 1.86
+++ fstat.c 4 May 2016 01:43:05 -0000
@@ -273,7 +273,7 @@ main(int argc, char *argv[])
}
if ((kf = kvm_getfiles(kd, what, arg, sizeof(*kf), &cnt)) == NULL)
- errx(1, "%s", kvm_geterr(kd));
+ errx((errno == ESRCH) ? 1 : 2, "%s", kvm_geterr(kd));
if (fuser) {
/*
