[nftables PATCH v2] src: fix return code

[nftables PATCH v2] src: fix return code

[Arturo Borrero Gonzalez]

Exit with NFT_EXIT_FAILURE if something went wrong in the netlink zone.

Before this patch:

# nft list chain filter asd ; echo $?
internal:0:0-0: Error: Could not find chain `asd' in table `filter': [...]

0

After this patch:

# nft list chain filter asd ; echo $?
internal:0:0-0: Error: Could not find chain `asd' in table `filter': [...]

1

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
---
v2: assume NFT_EXIT_SUCCESS. Do return rc instead of exit(rc).

 src/main.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/main.c b/src/main.c
index 3ddcb71..0c97120 100644
--- a/src/main.c
+++ b/src/main.c
@@ -222,7 +222,7 @@ int main(int argc, char * const *argv)
 	char *buf = NULL, *filename = NULL;
 	unsigned int len;
 	bool interactive = false;
-	int i, val;
+	int i, val, rc = NFT_EXIT_SUCCESS;
 
 	while (1) {
 		val = getopt_long(argc, argv, OPTSTRING, options, NULL);
@@ -318,11 +318,12 @@ int main(int argc, char * const *argv)
 		exit(NFT_EXIT_FAILURE);
 	}
 
-	nft_run(scanner, &state, &msgs);
+	if (nft_run(scanner, &state, &msgs) != 0)
+		rc = NFT_EXIT_FAILURE;
 out:
 	scanner_destroy(scanner);
 	erec_print_list(stdout, &msgs);
 
 	xfree(buf);
-	return 0;
+	return rc;
 }

Re: [nftables PATCH v2] src: fix return code

[Pablo Neira Ayuso]

On Fri, Oct 11, 2013 at 01:03:08PM +0200, Arturo Borrero Gonzalez wrote:
> Exit with NFT_EXIT_FAILURE if something went wrong in the netlink zone.
> 
> Before this patch:
> 
> # nft list chain filter asd ; echo $?
> internal:0:0-0: Error: Could not find chain `asd' in table `filter': [...]
> 
> 0
> 
> After this patch:
> 
> # nft list chain filter asd ; echo $?
> internal:0:0-0: Error: Could not find chain `asd' in table `filter': [...]
> 
> 1

Applied, thanks.