From: Quentin Monnet <quentin.monnet@netronome.com>
Date: Fri, 2 Mar 2018 04:20:08 +0000 (-0800)
Subject: tools: bpftool: support comments in batch files
X-Git-Tag: v4.19~1326^2~312^2^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=06cc7fe7c2951e64cd5e73ea447791c7e6bc3852;p=platform%2Fkernel%2Flinux-rpi3.git

tools: bpftool: support comments in batch files

Replace '#' by '\0' in commands read from batch files in order to avoid
processing the remaining part of the line, thus allowing users to use
comments in the files.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
---

diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index 185acfa..79587e6 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -176,6 +176,7 @@ static int do_batch(int argc, char **argv)
 	char buf[65536];
 	int n_argc;
 	FILE *fp;
+	char *cp;
 	int err;
 	int i;
 
@@ -200,6 +201,10 @@ static int do_batch(int argc, char **argv)
 	if (json_output)
 		jsonw_start_array(json_wtr);
 	while (fgets(buf, sizeof(buf), fp)) {
+		cp = strchr(buf, '#');
+		if (cp)
+			*cp = '\0';
+
 		if (strlen(buf) == sizeof(buf) - 1) {
 			errno = E2BIG;
 			break;