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A C library for asynchronous DNS requests (grpc依赖)
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c-ares/docs/ares_freeaddrinfo.3

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Avoid buffer overflow in RC4 loop comparison (#336) The rc4 function iterates over a buffer of size buffer_len who's maximum value is INT_MAX with a counter of type short that is not guaranteed to have maximum size INT_MAX. In circumstances where short is narrower than int and where buffer_len is larger than the maximum value of a short, it may be possible to loop infinitely as counter will overflow and never be greater than or equal to buffer_len. The solution is to make the comparison be between types of equal width. This commit defines counter as an int. Fix By: Fionn Fitzmaurice (@fionn)
4 years ago
.\"
.\" Copyright 1998 by the Massachusetts Institute of Technology.
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.\" software and its documentation for any purpose and without
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provide SPDX identifiers and a REUSE CI job to verify All files have their licence and copyright information clearly identifiable. If not in the file header, they are set separately in .reuse/dep5. All used license texts are provided in LICENSES/
2 years ago
.\" SPDX-License-Identifier: MIT
.\"
Avoid buffer overflow in RC4 loop comparison (#336) The rc4 function iterates over a buffer of size buffer_len who's maximum value is INT_MAX with a counter of type short that is not guaranteed to have maximum size INT_MAX. In circumstances where short is narrower than int and where buffer_len is larger than the maximum value of a short, it may be possible to loop infinitely as counter will overflow and never be greater than or equal to buffer_len. The solution is to make the comparison be between types of equal width. This commit defines counter as an int. Fix By: Fionn Fitzmaurice (@fionn)
4 years ago
.TH ARES_FREEADDRINFO 3 "31 October 2018"
.SH NAME
ares_freeaddrinfo \- Free addrinfo structure allocated by ares functions
.SH SYNOPSIS
.nf
#include <ares.h>
void ares_freeaddrinfo(struct ares_addrinfo *\fIai\fP)
.fi
.SH DESCRIPTION
The
.B ares_freeaddrinfo
function frees a
.B struct ares_addrinfo
returned in \fIresult\fP of
.B ares_addrinfo_callback
.SH SEE ALSO
.BR ares_getaddrinfo (3),
.SH AUTHOR
Christian Ammer
.BR
Andrew Selivanov <andrew.selivanov@gmail.com>