From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001
From: Vladimir Azarov <avm@intermediate-node.net>
Date: Tue, 1 Oct 2024 15:47:05 +0200
Subject: Initial version

---
 src/ipc/shmat.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/ipc/shmat.c

(limited to 'src/ipc/shmat.c')

diff --git a/src/ipc/shmat.c b/src/ipc/shmat.c
new file mode 100644
index 0000000..8c7407d
--- /dev/null
+++ b/src/ipc/shmat.c
@@ -0,0 +1,17 @@
+#include <sys/shm.h>
+#include "syscall.h"
+#include "ipc.h"
+
+#ifndef SYS_ipc
+void *shmat(int id, const void *addr, int flag)
+{
+	return (void *)syscall(SYS_shmat, id, addr, flag);
+}
+#else
+void *shmat(int id, const void *addr, int flag)
+{
+	unsigned long ret;
+	ret = syscall(SYS_ipc, IPCOP_shmat, id, flag, &addr, addr);
+	return (ret > -(unsigned long)SHMLBA) ? (void *)ret : (void *)addr;
+}
+#endif
-- 
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