27 lines
448 B
C
27 lines
448 B
C
#include <sys/cdefs.h>
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#include "namespace.h"
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#include <lib.h>
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#include <unistd.h>
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#ifdef __weak_alias
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__weak_alias(sbrk, _sbrk)
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#endif
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extern char *_brksize;
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void *sbrk(incr)
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intptr_t 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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