diff options
Diffstat (limited to 'src/ipc/semctl.c')
| -rw-r--r-- | src/ipc/semctl.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/src/ipc/semctl.c b/src/ipc/semctl.c index 673a9a8c..941e2813 100644 --- a/src/ipc/semctl.c +++ b/src/ipc/semctl.c @@ -1,8 +1,13 @@ #include <sys/sem.h> #include <stdarg.h> +#include <endian.h> #include "syscall.h" #include "ipc.h" +#if __BYTE_ORDER != __BIG_ENDIAN +#undef SYSCALL_IPC_BROKEN_MODE +#endif + union semun { int val; struct semid_ds *buf; @@ -20,9 +25,26 @@ int semctl(int id, int num, int cmd, ...) arg = va_arg(ap, union semun); va_end(ap); } +#ifdef SYSCALL_IPC_BROKEN_MODE + struct semid_ds tmp; + if (cmd == IPC_SET) { + tmp = *arg.buf; + tmp.sem_perm.mode *= 0x10000U; + arg.buf = &tmp; + } +#endif #ifdef SYS_semctl - return syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf); + int r = __syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf); #else - return syscall(SYS_ipc, IPCOP_semctl, id, num, cmd | IPC_64, &arg.buf); + int r = __syscall(SYS_ipc, IPCOP_semctl, id, num, cmd | IPC_64, &arg.buf); +#endif +#ifdef SYSCALL_IPC_BROKEN_MODE + if (r >= 0) switch (cmd) { + case IPC_STAT: + case SEM_STAT: + case SEM_STAT_ANY: + arg.buf->sem_perm.mode >>= 16; + } #endif + return __syscall_ret(r); } |