24ec0d73b5
- introduce new call numbers, names, and field aliases; - initialize request messages to zero for all ABI calls; - format callnr.h in the same way as com.h; - redo call tables in both servers; - remove param.h namespace pollution in the servers; - make brk(2) go to VM directly, rather than through PM; - remove obsolete BRK, UTIME, and WAIT calls; - clean up path copying routine in VFS; - move remaining system calls from libminlib to libc; - correct some errno-related mistakes in libc routines. Change-Id: I2d8ec5d061cd7e0b30c51ffd77aa72ebf84e2565
46 lines
753 B
C
46 lines
753 B
C
#define _SYSTEM 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 <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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#include <string.h>
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#ifdef __weak_alias
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__weak_alias(shmget, _shmget)
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#endif
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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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/* Get shared memory segment. */
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int shmget(key_t key, size_t size, int shmflg)
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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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memset(&m, 0, sizeof(m));
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m.SHMGET_KEY = key;
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m.SHMGET_SIZE = size;
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m.SHMGET_FLAG = shmflg;
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r = _syscall(ipc_pt, IPC_SHMGET, &m);
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if (r != OK)
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return r;
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return m.SHMGET_RETID;
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}
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