X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fipc%2Fshmctl.c;h=c951a58156c92446510e2a98e64ea7a558e2eb83;hb=6aeb9c6703670649ee09b3c8575fb428168bb75c;hp=da357fa86f499dafe8dbfbaacf48f4b198858f58;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/ipc/shmctl.c b/src/ipc/shmctl.c
index da357fa8..c951a581 100644
--- a/src/ipc/shmctl.c
+++ b/src/ipc/shmctl.c
@@ -1,12 +1,34 @@
 #include <sys/shm.h>
+#include <endian.h>
 #include "syscall.h"
 #include "ipc.h"
 
+#if __BYTE_ORDER != __BIG_ENDIAN
+#undef SYSCALL_IPC_BROKEN_MODE
+#endif
+
 int shmctl(int id, int cmd, struct shmid_ds *buf)
 {
-#ifdef __NR_shmctl
-	return syscall3(__NR_shmctl, id, cmd, (long)buf);
+#ifdef SYSCALL_IPC_BROKEN_MODE
+	struct shmid_ds tmp;
+	if (cmd == IPC_SET) {
+		tmp = *buf;
+		tmp.shm_perm.mode *= 0x10000U;
+		buf = &tmp;
+	}
+#endif
+#ifdef SYS_shmctl
+	int r = __syscall(SYS_shmctl, id, cmd | IPC_64, buf);
 #else
-	return syscall4(__NR_ipc, IPCOP_shmctl, id, cmd | IPC_MODERN, (long)buf);
+	int r = __syscall(SYS_ipc, IPCOP_shmctl, id, cmd | IPC_64, 0, buf, 0);
+#endif
+#ifdef SYSCALL_IPC_BROKEN_MODE
+	if (r >= 0) switch (cmd) {
+	case IPC_STAT:
+	case SHM_STAT:
+	case SHM_STAT_ANY:
+		buf->shm_perm.mode >>= 16;
+	}
 #endif
+	return __syscall_ret(r);
 }