22 lines
309 B
C
22 lines
309 B
C
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extern end;
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static void *curbrk = (char*)&end;
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void *
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sbrk(incr)
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int incr; {
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extern int errno;
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extern int _brk(void *);
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void *ptr = curbrk;
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int t;
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if (incr == 0)
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return curbrk;
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t = _brk (curbrk + incr);
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if (t == -1 && errno)
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return (void *)-1;
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curbrk = ((char *)curbrk) + incr;
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return ptr;
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}
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