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#include <sys/time.h>
#include <sys/resource.h>
#include <unistd.h>
#include <sys/mman.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include "harness.h"
void process_init()
{
struct rlimit limit = {0};
void *res;
static void *const areas[] = {(void*)0x7000, (void*)0, (void*)0xf000};
int i;
/* Default to 1 second of CPU time. That should be enough for
anyone... */
set_cpu_limit(1);
/* Stop us dumping core, just because the V86 died. */
if (setrlimit (RLIMIT_CORE, &limit))
{
perror("setrlimit(RLIMIT_CORE)");
exit(1);
}
/* Claim the whole V86 area (except NULL). */
res = mmap ((void*)0x1000, 0x10f000, 0,
MAP_FIXED | MAP_PRIVATE | MAP_ANON, -1, 0);
if (res != (void*)0x1000)
{
if (res == (void*)-1)
fprintf(stderr, "Failed to claim V86 area: %s\n", strerror(errno));
else
fprintf(stderr, "V86 area already occupied.\n");
exit(1);
}
for (i=0; i<sizeof(areas)/sizeof(*areas); i++)
{
if (mmap (areas[i], 0x1000, PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_FIXED | MAP_PRIVATE | MAP_ANON, -1, 0) == (void*)-1)
{
fprintf(stderr, "Failed to map area at 0x%x: %s\n", (int)areas[i],
strerror(errno));
exit(1);
}
}
}
void set_cpu_limit(unsigned long time)
{
struct rlimit limit = {0};
if (getrlimit (RLIMIT_CPU, &limit))
{
perror("getrlimit(RLIMIT_CPU)");
exit(1);
}
limit.rlim_cur = time;
if (setrlimit (RLIMIT_CPU, &limit))
{
perror("setrlimit(RLIMIT_CPU)");
exit(1);
}
}
/* */
/* Local Variables: */
/* mode:c */
/* c-indentation-style: "whitesmith" */
/* c-basic-offset: 2 */
/* End: */
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