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fix inadvertent use of struct in place of union for semun

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This commit is contained in:
Rich Felker 2014-01-08 17:37:05 -05:00
parent 5f94205369
commit 8e776e3ed4
1 changed files with 3 additions and 3 deletions
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6
src/ipc/semctl.c
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@ -3,7 +3,7 @@
#include "syscall.h"
#include "ipc.h"
struct semun {
union semun {
int val;
struct semid_ds *buf;
unsigned short *array;
@ -11,10 +11,10 @@ struct semun {
int semctl(int id, int num, int cmd, ...)
{
struct semun arg;
union semun arg;
va_list ap;
va_start(ap, cmd);
arg = va_arg(ap, struct semun);
arg = va_arg(ap, union semun);
va_end(ap);
#ifdef SYS_semctl
return syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf);