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sbrk.c
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C/C++ Source or Header
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1989-05-12
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322 b
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28 lines
#include <sys/types.h>
extern char end;
static caddr_t curbrk = &end;
caddr_t sbrk();
caddr_t
sbrk(n)
int n;
{ int res;
if (n==0) return curbrk;
{ caddr_t x=curbrk;
char *p;
p=curbrk;
p=p+n;
res = brk(p);
if (res==-1) error("can't set brk");
else curbrk = p;
return (x);}
}