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manual: Document error codes missing for 'inet_pton' 

Add documentation for EAFNOSUPPORT error code returned, and the possible
return values on non-success.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
This commit is contained in:
Maciej W. Rozycki 2025-06-04 16:27:20 +01:00
parent 5a9020eeb2
commit 140b20e971
1 changed files with 11 additions and 0 deletions
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manual/socket.texi
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@ -1216,6 +1216,17 @@ either @code{AF_INET} or @code{AF_INET6}, as appropriate for the type of
address being converted. @var{cp} is a pointer to the input string, and
@var{buf} is a pointer to a buffer for the result. It is the caller's
responsibility to make sure the buffer is large enough.
The return value is @code{1} on success and @code{0} if @var{cp} does not
point to a valid address string for the address family @var{af} requested.
On failure, the function's return value is @code{-1} and @code{errno} is
set accordingly. The following @code{errno} values are specific to this
function:
@table @code
@item EAFNOSUPPORT
The address family requested is neither @code{AF_INET} nor @code{AF_INET6}.
@end table
@end deftypefun
@deftypefun {const char *} inet_ntop (int @var{af}, const void *@var{cp}, char *@var{buf}, socklen_t @var{len})