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c-ares/docs/ares_library_initialized.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 (C) 2016 by Daniel Stenberg
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/
1 year 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_LIBRARY_INITIALIZED 3 "29 Sep 2016"
.SH NAME
ares_library_initialized \- get the initialization state
.SH SYNOPSIS
.nf
#include <ares.h>
int ares_library_initialized(void)
.fi
.SH DESCRIPTION
Returns information if c-ares needs to get initialized.
.SH RETURN VALUE
\fIARES_ENOTINITIALIZED\fP if not initialized and \fIARES_SUCCESS\fP if no
initialization is needed.
.SH AVAILABILITY
This function was first introduced in c-ares version 1.11.0
.SH SEE ALSO
docs: provide better man page references When referring to another c-ares function use \fI function(3) \fP to let the webpage rendering find and cross-link them appropriately. SEE ALSO references should be ".BR name (3),", with a space before the open parenthesis. This helps the manpage to HTML renderer. Closes #565
1 year ago
.BR ares_library_init (3),
.BR ares_library_cleanup (3)