diff options
Diffstat (limited to 'src/ipc/shmctl.c')
| -rw-r--r-- | src/ipc/shmctl.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/src/ipc/shmctl.c b/src/ipc/shmctl.c index e2879f20..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 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 - return syscall(SYS_shmctl, id, cmd | IPC_64, buf); + int r = __syscall(SYS_shmctl, id, cmd | IPC_64, buf); #else - return syscall(SYS_ipc, IPCOP_shmctl, id, cmd | IPC_64, 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); } |