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WebSVN – planix.SVN – Blame – /os/branches/planix-v0/sys/src/cmd/unix/drawterm/kern/sysproc.c – Rev 2

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#include	"u.h"
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#include	"lib.h"
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#include	"dat.h"
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#include	"fns.h"
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#include	"error.h"
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long
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sysexits(ulong *arg)
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{
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	char *status;
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	char *inval = "invalid exit string";
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	char buf[ERRMAX];
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	status = (char*)arg[0];
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	if(status){
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		if(waserror())
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			status = inval;
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		else{
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			validaddr((ulong)status, 1, 0);
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			if(vmemchr(status, 0, ERRMAX) == 0){
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				memmove(buf, status, ERRMAX);
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				buf[ERRMAX-1] = 0;
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				status = buf;
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			}
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		}
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		poperror();
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	}
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	pexit(status, 1);
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	return 0;		/* not reached */
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}
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