4f294c247f
This patch mainly copies and modifies files existing in the current libc implementing minix specific functions. To keep consisten with the NetBSD libc, we remove namespace stubs and we use "namespace.h" and weak links.
42 lines
757 B
C
42 lines
757 B
C
#define _SYSTEM 1
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#define _MINIX 1
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#include <sys/cdefs.h>
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#include <lib.h>
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#include "namespace.h"
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#include <minix/rs.h>
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#include <lib.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <stdlib.h>
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#include <errno.h>
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static int get_ipc_endpt(endpoint_t *pt)
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{
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return minix_rs_lookup("ipc", pt);
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}
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/* Shared memory control operation. */
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int shmctl(int shmid, int cmd, struct shmid_ds *buf)
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{
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message m;
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endpoint_t ipc_pt;
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int r;
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if (get_ipc_endpt(&ipc_pt) != OK) {
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errno = ENOSYS;
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return -1;
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}
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m.SHMCTL_ID = shmid;
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m.SHMCTL_CMD = cmd;
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m.SHMCTL_BUF = (long) buf;
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r = _syscall(ipc_pt, IPC_SHMCTL, &m);
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if ((cmd == IPC_INFO || cmd == SHM_INFO || cmd == SHM_STAT)
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&& (r == OK))
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return m.SHMCTL_RET;
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return r;
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}
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