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| author | Zack Weinberg <zackw@panix.com> | 2016-07-13 15:20:29 -0400 |
|---|---|---|
| committer | Zack Weinberg <zackw@panix.com> | 2016-09-23 08:43:56 -0400 |
| commit | f2bea4da2e65b5d91a23a01fb2062bcec33974aa (patch) | |
| tree | 466d8cc7eb9f7baa3a54a3aed84c12264d40bceb /sysdeps | |
| parent | 11160cb76f56e0a711686e34881a4eaf1ad2fa0e (diff) | |
| download | glibc-f2bea4da2e65b5d91a23a01fb2062bcec33974aa.tar.gz glibc-f2bea4da2e65b5d91a23a01fb2062bcec33974aa.tar.xz glibc-f2bea4da2e65b5d91a23a01fb2062bcec33974aa.zip | |
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.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/mach/hurd/net/if_ppp.h | 3 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/net/if_ppp.h | 3 |
2 files changed, 6 insertions, 0 deletions
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. diff --git a/sysdeps/unix/sysv/linux/net/if_ppp.h b/sysdeps/unix/sysv/linux/net/if_ppp.h index 9994982fc0..31a20766f0 100644 --- a/sysdeps/unix/sysv/linux/net/if_ppp.h +++ b/sysdeps/unix/sysv/linux/net/if_ppp.h @@ -118,6 +118,8 @@ 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 */ @@ -130,6 +132,7 @@ struct ifpppcstatsreq { #define ifr__name b.ifr_ifrn.ifrn_name #define stats_ptr b.ifr_ifru.ifru_data +#endif /* * Ioctl definitions. |