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iptables
_service:tar_scm_kernel_repo:backport-xtables-r...
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File _service:tar_scm_kernel_repo:backport-xtables-restore-Extend-failure-error-message.patch of Package iptables
From c70a33d219ccb43e6f59aa1b9bbab5dcb13f3443 Mon Sep 17 00:00:00 2001 From: Phil Sutter <phil@nwl.cc> Date: Thu, 25 Aug 2022 11:53:04 +0200 Subject: [PATCH] xtables-restore: Extend failure error message If a line causes zero 'ret' value and errno is set, call nft_strerror() for a more detailed error message. While not perfect, it helps with debugging ominous "line NN failed" messages pointing at COMMIT: | # iptables-nft-restore <<EOF | *filter | -A nonexist | COMMIT | EOF | iptables-nft-restore: line 3 failed: No chain/target/match by that name. Conflict: NA Reference: https://git.netfilter.org/iptables/commit?id=c70a33d219ccb43e6f59aa1b9bbab5dcb13f3443 Signed-off-by: Phil Sutter <phil@nwl.cc> --- iptables/xtables-restore.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/iptables/xtables-restore.c b/iptables/xtables-restore.c index abeaf76..5940e9a 100644 --- a/iptables/xtables-restore.c +++ b/iptables/xtables-restore.c @@ -247,8 +247,11 @@ static void xtables_restore_parse_line(struct nft_handle *h, (strcmp(p->tablename, state->curtable->name) != 0)) return; if (!ret) { - fprintf(stderr, "%s: line %u failed\n", + fprintf(stderr, "%s: line %u failed", xt_params->program_name, h->error.lineno); + if (errno) + fprintf(stderr, ": %s.", nft_strerror(errno)); + fprintf(stderr, "\n"); exit(1); } } -- 2.33.0
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