21 lines
368 B
C
21 lines
368 B
C
#include <lib.h>
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#define sbrk _sbrk
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#include <unistd.h>
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extern char *_brksize;
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PUBLIC char *sbrk(incr)
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int incr;
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{
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char *newsize, *oldsize;
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oldsize = _brksize;
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newsize = _brksize + incr;
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if ((incr > 0 && newsize < oldsize) || (incr < 0 && newsize > oldsize))
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return( (char *) -1);
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if (brk(newsize) == 0)
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return(oldsize);
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else
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return( (char *) -1);
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}
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