65 lines
1.8 KiB
Diff
65 lines
1.8 KiB
Diff
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From b9ae48172fff77d41b5cf19d334ccbe002ac0686 Mon Sep 17 00:00:00 2001
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From: Adrian Reber <areber@redhat.com>
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Date: Tue, 7 Dec 2021 09:10:14 +0000
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Subject: [PATCH] util: make page-server IPv6 safe
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The function run_tcp_server() was the last place CRIU was still using
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the IPv4 only function inet_ntoa(). It was only used during a print, so
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that it did not really break anything, but with this commit the output
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is now no longer:
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Accepted connection from 0.0.0.0:58396
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but correctly displaying the IPv6 address
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Accepted connection from ::1:58398
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if connecting via IPv6.
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Signed-off-by: Adrian Reber <areber@redhat.com>
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---
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criu/util.c | 15 +++++++++++----
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1 file changed, 11 insertions(+), 4 deletions(-)
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diff --git a/criu/util.c b/criu/util.c
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index 2917102fd..822822186 100644
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--- a/criu/util.c
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+++ b/criu/util.c
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@@ -1098,7 +1098,7 @@ out:
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int run_tcp_server(bool daemon_mode, int *ask, int cfd, int sk)
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{
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int ret;
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- struct sockaddr_in caddr;
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+ struct sockaddr_storage caddr;
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socklen_t clen = sizeof(caddr);
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if (daemon_mode) {
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@@ -1126,14 +1126,20 @@ int run_tcp_server(bool daemon_mode, int *ask, int cfd, int sk)
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return -1;
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if (sk >= 0) {
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+ char port[6];
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+ char address[INET6_ADDRSTRLEN];
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*ask = accept(sk, (struct sockaddr *)&caddr, &clen);
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if (*ask < 0) {
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pr_perror("Can't accept connection to server");
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goto err;
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- } else
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- pr_info("Accepted connection from %s:%u\n",
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- inet_ntoa(caddr.sin_addr),
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- (int)ntohs(caddr.sin_port));
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+ }
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+ ret = getnameinfo((struct sockaddr *)&caddr, clen, address, sizeof(address), port, sizeof(port),
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+ NI_NUMERICHOST | NI_NUMERICSERV);
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+ if (ret) {
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+ pr_err("Failed converting address: %s\n", gai_strerror(ret));
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+ goto err;
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+ }
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+ pr_info("Accepted connection from %s:%s\n", address, port);
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close(sk);
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}
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--
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2.34.1
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