31 lines
756 B
C
31 lines
756 B
C
/* The kernel call implemented in this file:
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* m_type: SYS_SETGRANT
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*
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* The parameters for this kernel call are:
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* SG_ADDR address of grant table in own address space
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* SG_SIZE number of entries
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*/
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#include "kernel/system.h"
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#include <minix/safecopies.h>
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/*===========================================================================*
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* do_setgrant *
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*===========================================================================*/
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int do_setgrant(struct proc * caller, message * m_ptr)
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{
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int r;
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/* Copy grant table set in priv. struct. */
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if (RTS_ISSET(caller, RTS_NO_PRIV) || !(priv(caller))) {
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r = EPERM;
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} else {
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_K_SET_GRANT_TABLE(caller,
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(vir_bytes) m_ptr->SG_ADDR,
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m_ptr->SG_SIZE);
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r = OK;
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}
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return r;
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}
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