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https://github.com/RetroPortingToolKit/psxrecomp
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Pegasus
20 lines
641 B
C
20 lines
641 B
C
#ifndef PSX_SOURCE_OBSERVER_LIMIT_H
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#define PSX_SOURCE_OBSERVER_LIMIT_H
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#include <stdlib.h>
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/* A declared route may exceed the historical short-TAS diagnostic bound.
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* Reject signs, whitespace, overflow and unbounded collection. */
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static inline unsigned source_observer_max_frames(const char *variable) {
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const char *limit=getenv(variable);
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if(!limit)return 20000;
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unsigned value=0;
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if(!*limit)abort();
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for(const char *p=limit;*p;++p) {
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if(*p<'0'||*p>'9'||value>100000)abort();
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value=value*10+(unsigned)(*p-'0');
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if(value>1000000)abort();
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}
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if(!value)abort();
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return value;
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}
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#endif
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