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[Bug libc/12717] New: declaration of getnameinfo() is not POSIX compliant
- From: "bruno at clisp dot org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Sat, 30 Apr 2011 10:37:12 +0000
- Subject: [Bug libc/12717] New: declaration of getnameinfo() is not POSIX compliant
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=12717
Summary: declaration of getnameinfo() is not POSIX compliant
Product: glibc
Version: 2.13
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: drepper.fsp@gmail.com
ReportedBy: bruno@clisp.org
POSIX:2008 specifies the declaration of getnameinfo() in
http://pubs.opengroup.org/onlinepubs/9699919799/functions/getnameinfo.html
In particular, the last parameter should be an 'int'.
In glibc's <netdb.h>, the parameter is an 'unsigned int'. This leads to
a compilation error for POSIX compliant programs.
How to reproduce:
============================== foo.cc ==============================
#include <netdb.h>
int (*getnameinfo_ptr) (const struct sockaddr *sa, socklen_t salen,
char *node, socklen_t nodelen,
char *service, socklen_t servicelen,
int flags) = getnameinfo;
====================================================================
$ g++ -c foo.cc
foo.cc:5: error: invalid conversion from âint (*)(const sockaddr*, socklen_t,
char*, socklen_t, char*, socklen_t, unsigned int)â to âint (*)(const sockaddr*,
socklen_t, char*, socklen_t, char*, socklen_t, int)â
Attached is a probable fix (untested).
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