fix: off-by-two in printinaddr remaining-length accounting#366
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In printinaddr(), the remaining-length counter nl was decremented by len - 1 instead of len + 1 after writing ":" + port string (len + 1 bytes). This inflated nl by 2 after each port field, allowing the final snpf() to write 2 bytes past the end of the heap-allocated Namech buffer. Reported-by: f9j2n6nd8k-eng Fixes #365
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In
printinaddr(), the remaining-length counternlwas decremented bylen - 1instead oflen + 1after writing ":" + port string (len + 1bytes). This inflatesnlby 2 after each port field, allowing the finalsnpf()to write 2 bytes past the end of the heap-allocatedNamechbuffer.Reported-by: f9j2n6nd8k-eng
Fixes #365