12 lines
230 B
C
12 lines
230 B
C
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#include "beware_overflow.h"
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void *beware_overflow(void *ptr, size_t nmemb, size_t size)
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{
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size_t c;
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if (__builtin_mul_overflow(nmemb, size, &c))
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return NULL;
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char *byte_ptr = ptr;
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return c + byte_ptr;
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}
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