43 lines
889 B
C
Executable File
43 lines
889 B
C
Executable File
#ident "@(#)prmunmap.c 1.1 94/11/10 SMI"
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/mman.h>
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#include "pcontrol.h"
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int /* munmap() system call -- executed by subject process */
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prmunmap(Pr, addr, len)
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process_t *Pr;
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caddr_t addr;
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size_t len;
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{
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struct sysret rval; /* return value from munmap() */
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struct argdes argd[2]; /* arg descriptors for munmap() */
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register struct argdes *adp;
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adp = &argd[0]; /* addr argument */
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adp->value = (int)addr;
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adp->object = (char *)NULL;
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adp->type = AT_BYVAL;
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adp->inout = AI_INPUT;
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adp->len = 0;
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adp++; /* len argument */
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adp->value = (int)len;
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adp->object = (char *)NULL;
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adp->type = AT_BYVAL;
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adp->inout = AI_INPUT;
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adp->len = 0;
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rval = Psyscall(Pr, SYS_munmap, 2, &argd[0]);
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if (rval.errno < 0)
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rval.errno = ENOSYS;
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if (rval.errno == 0)
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return rval.r0;
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errno = rval.errno;
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return -1;
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}
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