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tools: bpftool: provide JSON output for all possible commands

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As all commands can now return JSON output (possibly just a "null"
value), output of `bpftool --json batch file FILE` should also be fully
JSON compliant.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Quentin Monnet
2017-10-23 09:24:14 -07:00
committed by David S. Miller
parent 9a5ab8bf1d
commit 004b45c0e5
3 changed files with 47 additions and 6 deletions
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12
tools/bpf/bpftool/prog.c
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@@ -602,11 +602,21 @@ err_free:
static int do_pin(int argc, char **argv)
{
return do_pin_any(argc, argv, bpf_prog_get_fd_by_id);
int err;
err = do_pin_any(argc, argv, bpf_prog_get_fd_by_id);
if (!err && json_output)
jsonw_null(json_wtr);
return err;
}
static int do_help(int argc, char **argv)
{
if (json_output) {
jsonw_null(json_wtr);
return 0;
}
fprintf(stderr,
"Usage: %s %s show [PROG]\n"
" %s %s dump xlated PROG [{ file FILE | opcodes }]\n"