From f2bea4da2e65b5d91a23a01fb2062bcec33974aa Mon Sep 17 00:00:00 2001 From: Zack Weinberg Date: Wed, 13 Jul 2016 15:20:29 -0400 Subject: Installed-header hygiene (BZ#20366): conditionally defined structures. Several network-related structures are defined conditionally under __USE_MISC, but unconditionally used by other headers. The path of least resistance is usually to condition the uses on __USE_MISC as well. * sysdeps/mach/hurd/net/if_ppp.h * sysdeps/unix/sysv/linux/net/if_ppp.h: Only define struct ifpppstatsreq and struct ifpppcstatsreq if __USE_MISC is defined, to ensure struct ifreq is declared. * inet/netinet/ether.h: Condition all function prototypes on __USE_MISC, to ensure struct ether_addr is declared. sys/socket.h defines struct osockaddr only under __USE_MISC, whereas protocols/talkd.h requires it unconditionally. Here it doesn't make sense to condition the entire body of protocols/talkd.h on __USE_MISC. Rather than complicate sys/socket.h with a __need macro or duplicate the definition, I am introducing a new concept: tiny headers named bits/types/TYPE.h that define TYPE and nothing else. This can, I hope, ultimately replace *all* the __need macros. The guard macro for such headers will be __TYPE_defined, just in case application or third-party library code is looking at them. * socket/bits/types/struct_osockaddr.h: New header. * include/bits/types/struct_osockaddr.h: New wrapper. * socket/Makefile: Install the new header. * socket/sys/socket.h, inet/protocols/talkd.h: Refer to bits/types/struct_osockaddr.h for the definition of struct osockaddr. --- sysdeps/mach/hurd/net/if_ppp.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'sysdeps/mach') diff --git a/sysdeps/mach/hurd/net/if_ppp.h b/sysdeps/mach/hurd/net/if_ppp.h index b210d7fd06..8ee620bd03 100644 --- a/sysdeps/mach/hurd/net/if_ppp.h +++ b/sysdeps/mach/hurd/net/if_ppp.h @@ -119,6 +119,8 @@ struct ppp_option_data { int transmit; }; +/* 'struct ifreq' is only available from net/if.h under __USE_MISC. */ +#ifdef __USE_MISC struct ifpppstatsreq { struct ifreq b; struct ppp_stats stats; /* statistic information */ @@ -131,6 +133,7 @@ struct ifpppcstatsreq { #define ifr__name b.ifr_ifrn.ifrn_name #define stats_ptr b.ifr_ifru.ifru_data +#endif /* * Ioctl definitions. -- cgit v1.2.3