28 lines
537 B
C
28 lines
537 B
C
#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/sem.h>
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#include <stdarg.h>
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#include <stdlib.h>
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int semctl(int semid, int semnum, int cmd, ...)
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{
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va_list ap;
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union semun semun;
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union semun *semun_ptr;
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va_start(ap, cmd);
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if (cmd == IPC_SET || cmd == IPC_STAT || cmd == GETALL
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|| cmd == SETVAL || cmd == SETALL) {
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semun = va_arg(ap, union semun);
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semun_ptr = &semun;
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} else {
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semun_ptr = NULL;
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}
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va_end(ap);
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return (__semctl(semid, semnum, cmd, semun_ptr));
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}
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