X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fipc%2Fshmctl.c;h=c2b2bb0d4c44fe68e9b2b4f5797e06573f0f2cd3;hb=c225e6c1a4e6a89447cb00a71f50ae00f8f5ec3f;hp=ae6ce69ecd73053f1b1c53ee0b35c73c85addfb0;hpb=07e865cc5afb11e6e882e998306ab0f7fb64357e;p=musl

diff --git a/src/ipc/shmctl.c b/src/ipc/shmctl.c
index ae6ce69e..c2b2bb0d 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 SYS_shmctl
-	return syscall(SYS_shmctl, id, cmd | IPC_MODERN, buf);
+#ifdef SYSCALL_IPC_BROKEN_MODE
+	struct shmid_ds tmp;
+	if (cmd == IPC_SET) {
+		tmp = *buf;
+		tmp.shm_perm.mode *= 0x10000U;
+		buf = &tmp;
+	}
+#endif
+#ifndef SYS_ipc
+	int r = __syscall(SYS_shmctl, id, cmd | IPC_64, buf);
 #else
-	return syscall(SYS_ipc, IPCOP_shmctl, id, cmd | IPC_MODERN, 0, buf, 0);
+	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);
 }