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netcat_openbsd: fix build issues on Haiku R1 beta 5. (#13570)

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Work around missing accept4.
This commit is contained in:
Christof Meerwald
2026-01-02 15:32:16 +01:00
committed by GitHub
parent 386b9d9fab
commit 311fb2354e
1 changed files with 92 additions and 0 deletions
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92
net-analyzer/netcat-openbsd/patches/netcat-openbsd-7.5.1a.patchset
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@@ -38,3 +38,95 @@ index 8cc37f6..4df7d7f 100644
--
2.51.0
From 42f64ae1365c6356123adff915b5c7c147ea2d34 Mon Sep 17 00:00:00 2001
From: Christof Meerwald <cmeerw@cmeerw.org>
Date: Fri, 2 Jan 2026 13:25:47 +0000
Subject: [PATCH] Work around missing accept4/SOCK_NONBLOCK/SOCK_CLOEXEC
---
netcat.c | 41 ++++++++++++++++++++++++++++++++++++++++-
1 file changed, 40 insertions(+), 1 deletion(-)
diff --git a/netcat.c b/netcat.c
index 4df7d7f..3a50cfa 100644
--- a/netcat.c
+++ b/netcat.c
@@ -596,8 +596,20 @@ main(int argc, char *argv[])
int connfd;
len = sizeof(cliaddr);
+#ifdef SOCK_NONBLOCK
connfd = accept4(s, (struct sockaddr *)&cliaddr,
&len, SOCK_NONBLOCK);
+#else
+ connfd = accept(s, (struct sockaddr *)&cliaddr,
+ &len);
+ if (connfd != -1) {
+ int flags = fcntl(connfd, F_GETFL, 0);
+ if (fcntl(connfd, F_SETFL, flags | O_NONBLOCK) < 0 ) {
+ close(connfd);
+ connfd = -1;
+ }
+ }
+#endif
if (connfd == -1) {
/* For now, all errnos are fatal */
err(1, "accept");
@@ -768,16 +780,31 @@ unix_connect(char *path)
return -1;
if (uflag) {
+#ifdef SOCK_CLOEXEC
if ((s = unix_bind(unix_dg_tmp_socket, SOCK_CLOEXEC)) == -1)
+#else
+ if ((s = unix_bind(unix_dg_tmp_socket, 0)) == -1)
+#endif
return -1;
} else {
- if ((s = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0)) ==
+#ifdef SOCK_CLOEXEC
+ if ((s = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0)) ==
+#else
+ if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) ==
+#endif
-1) {
errx(1, "create unix socket failed");
return -1;
}
}
+#ifndef SOCK_CLOEXEC
+ if (fcntl(s, F_SETFL, fcntl(s, F_GETFL, 0) | O_CLOEXEC) < 0 ) {
+ close(s);
+ return -1;
+ }
+#endif
+
if (connect(s, (struct sockaddr *)&s_un, addrlen) == -1) {
save_errno = errno;
warn("unix connect failed");
@@ -848,9 +875,21 @@ remote_connect(const char *host, const char *port, struct addrinfo hints,
port, gai_strerror(error));
for (res = res0; res; res = res->ai_next) {
+#ifdef SOCK_NONBLOCK
if ((s = socket(res->ai_family, res->ai_socktype |
SOCK_NONBLOCK, res->ai_protocol)) == -1)
continue;
+#else
+ int flags;
+ if ((s = socket(res->ai_family, res->ai_socktype,
+ res->ai_protocol)) == -1)
+ continue;
+ flags = fcntl(s, F_GETFL, 0);
+ if (fcntl(s, F_SETFL, flags | O_NONBLOCK) < 0 ) {
+ close(s);
+ continue;
+ }
+#endif
/* Bind to a local port or source address if specified. */
if (sflag || pflag) {
--
2.52.0