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-rw-r--r--tests/test-accept.c56
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diff --git a/tests/test-accept.c b/tests/test-accept.c
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+/* Test accepting a connection to a server socket.
+ Copyright (C) 2011-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include <sys/socket.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (accept, int, (int, struct sockaddr *, socklen_t *));
+
+#include <errno.h>
+#include <netinet/in.h>
+#include <unistd.h>
+
+#include "sockets.h"
+#include "macros.h"
+
+int
+main (void)
+{
+ (void) gl_sockets_startup (SOCKETS_1_1);
+
+ /* Test behaviour for invalid file descriptors. */
+ {
+ struct sockaddr_in addr;
+ socklen_t addrlen = sizeof (addr);
+
+ errno = 0;
+ ASSERT (accept (-1, (struct sockaddr *) &addr, &addrlen) == -1);
+ ASSERT (errno == EBADF);
+ }
+ {
+ struct sockaddr_in addr;
+ socklen_t addrlen = sizeof (addr);
+
+ close (99);
+ errno = 0;
+ ASSERT (accept (99, (struct sockaddr *) &addr, &addrlen) == -1);
+ ASSERT (errno == EBADF);
+ }
+
+ return 0;
+}