From 11160cb76f56e0a711686e34881a4eaf1ad2fa0e Mon Sep 17 00:00:00 2001 From: Zack Weinberg Date: Sun, 21 Aug 2016 15:38:41 -0400 Subject: Installed-header hygiene (BZ#20366): obsolete BSD u_* types. The types u_char, u_short, u_int, u_long, ushort, uint, ulong, u_int8_t, u_int16_t, u_int32_t, u_int64_t, quad_t, and u_quad_t are BSDisms that have never been standardized. While glibc should continue to *provide* these types for compatibility's sake, its public headers should not use them. The meat of this change was mechanically generated by the following shell command: perl -pi~ -e ' s/\b(__)?u_char\b/unsigned char/g; s/\b(__)?u_?short\b/unsigned short/g; s/\b(__)?u_?int\b/unsigned int/g; s/\b(__)?u_?long\b/unsigned long/g; s/\b(__)?u_int8_t\b/uint8_t/g; s/\b(__)?u_int16_t\b/uint16_t/g; s/\b(__)?u_int32_t\b/uint32_t/g; s/\b(__)?u_int64_t\b/uint64_t/g; s/\b(__)?u_quad_t\b/uint64_t/g; s/\b(__)?quad_t\b/uint64_t/g; ' $(grep -lE -e '\<((__)?(quad_t|u(short|int|long|_(char|short|int([0-9]+_t)?|long|quad_t))))\>' \ $(grep -LE '\<(_(SYS|BITS)_TYPES_H|rpc/(rpc|rpc_msg|types|xdr)\.h)\>' \ $(find . \( -false $(sed 's/^/-o -name /' all-installed-headers) \ \) -printf '%P\n' | sort -u))) where 'all-installed-headers' was a list of the basenames of all installed header files, manually extracted from the Makefiles. Non-installed wrapper headers in include/ are also adjusted, for consistency. I then manually fixed up indentation and line-wrapping. sys/types.h and bits/types.h are excluded because they must continue to define the u_* types (under __USE_MISC) for compatibility with applications. They do not use these types themselves. All headers that (transitively) include rpc/types.h are also excluded, for three reasons. First, the u_* types are defined by rpc/types.h, unconditionally (not just under __USE_MISC) so they are logically part of the SunRPC API. Second, many of those headers appear to be machine-generated. Third, it's my understanding that we are getting rid of as much of SunRPC as possible in the near future. (The one file under sunrpc/ that's touched, sunrpc/rpc/rpc_des.h, does *not* include rpc/types.h. This may itself be a bug.) After changing from u_intNN_t to uintNN_t, a number of headers now need to include stdint.h to pick up those types. It might be more hygenic, namespace-wise, to use __uintNN_t instead, but none of these headers are bound by ISO or POSIX to do so, and it's unlikely that anyone using them will be bothered. (The two files that were using __-prefixed versions of the u_types, sysdeps/mach/hurd/net/route.h and sysdeps/unix/sysv/linux/net/route.h, both already also contained uses of the unprefixed versions.) Some of these files directly included features.h and/or sys/cdefs.h, which I removed, as the style generally seems to be to let sys/types.h do that for us. (This does not change the set of definitions exposed by any header; sys/types.h unconditionally includes both features.h and sys/cdefs.h.) One file included asm/types.h unnecessarily. * bits/in.h, gmon/sys/gmon.h, inet/netinet/igmp.h * inet/protocols/routed.h, inet/protocols/talkd.h * inet/protocols/timed.h, io/fts.h, nptl_db/thread_db.h * resolv/arpa/nameser.h, resolv/resolv.h, sunrpc/rpc/rpc_des.h * sysdeps/generic/netinet/if_ether.h * sysdeps/generic/netinet/in_systm.h * sysdeps/generic/netinet/ip.h, sysdeps/generic/netinet/tcp.h * sysdeps/gnu/netinet/ip_icmp.h, sysdeps/gnu/netinet/tcp.h * sysdeps/gnu/netinet/udp.h, sysdeps/mach/hurd/net/ethernet.h * sysdeps/mach/hurd/net/if_arp.h * sysdeps/mach/hurd/net/if_ppp.h * sysdeps/mach/hurd/net/route.h, sysdeps/mach/sys/reboot.h * sysdeps/unix/sysv/linux/bits/in.h * sysdeps/unix/sysv/linux/net/ethernet.h * sysdeps/unix/sysv/linux/net/if_arp.h * sysdeps/unix/sysv/linux/net/if_ppp.h * sysdeps/unix/sysv/linux/net/if_shaper.h * sysdeps/unix/sysv/linux/net/route.h * sysdeps/unix/sysv/linux/netinet/if_ether.h * sysdeps/unix/sysv/linux/netinet/if_fddi.h * sysdeps/unix/sysv/linux/netinet/if_tr.h * sysdeps/unix/sysv/linux/netipx/ipx.h * sysdeps/unix/sysv/linux/sys/acct.h * include/arpa/nameser.h, include/resolv.h: Change all uses of u_char to unsigned char, u_short and ushort to unsigned short, u_int and uint to unsigned int, u_long and ulong to unsigned long, u_int8_t to uint8_t, u_int16_t to uint16_t, u_int32_t to uint32_t, quad_t to int64_t, and u_int64_t and u_quad_t to uint64_t. * mach/sys/reboot.h: Remove two casts of integer literals to the types they already have. * bits/in.h: Correct error in description of IP_MULTICAST_LOOP. * sysdeps/unix/sysv/linux/bits/in.h: Likewise. * sysdeps/unix/sysv/linux/netinet/if_ether.h: Change a comment from referring to 'unsigned char' to 'uint8_t' for consistency with the macro definition below. * gmon/sys/gmon.h, inet/netinet/igmp.h, inet/protocols/talkd.h * io/fts.h, resolv/arpa/nameser.h, resolv/resolv.h * sunrpc/rpc/rpc_des.h, sysdeps/generic/netinet/ip.h * sysdeps/gnu/netinet/tcp.h, sysdeps/gnu/netinet/udp.h * sysdeps/mach/hurd/net/if_ppp.h, sysdeps/unix/sysv/linux/net/if_ppp.h * sysdeps/unix/sysv/linux/sys/acct.h * include/arpa/nameser.h, include/resolv.h: Fix indentation disrupted by mechanical edits. * inet/protocols/talkd.h, resolv/arpa/nameser.h * sysdeps/generic/netinet/in_systm.h * sysdeps/gnu/netinet/ip_icmp.h, sysdeps/gnu/netinet/tcp.h * sysdeps/gnu/netinet/udp.h * sysdeps/unix/sysv/linux/net/ethernet.h * sysdeps/unix/sysv/linux/net/if_arp.h * sysdeps/unix/sysv/linux/net/if_ppp.h * sysdeps/unix/sysv/linux/net/if_shaper.h * sysdeps/unix/sysv/linux/netinet/if_fddi.h * sysdeps/unix/sysv/linux/netinet/if_tr.h * sysdeps/unix/sysv/linux/netipx/ipx.h * sysdeps/unix/sysv/linux/sys/acct.h Include stdint.h for uintNN_t definitions. Don't include sys/cdefs.h, features.h, or asm/types.h directly. --- inet/protocols/routed.h | 6 +++--- inet/protocols/talkd.h | 21 +++++++++++---------- inet/protocols/timed.h | 6 +++--- 3 files changed, 17 insertions(+), 16 deletions(-) (limited to 'inet/protocols') diff --git a/inet/protocols/routed.h b/inet/protocols/routed.h index befd865..adb1767 100644 --- a/inet/protocols/routed.h +++ b/inet/protocols/routed.h @@ -48,9 +48,9 @@ struct netinfo { }; struct rip { - u_char rip_cmd; /* request/response */ - u_char rip_vers; /* protocol version # */ - u_char rip_res1[2]; /* pad to 32-bit boundary */ + unsigned char rip_cmd; /* request/response */ + unsigned char rip_vers; /* protocol version # */ + unsigned char rip_res1[2]; /* pad to 32-bit boundary */ union { struct netinfo ru_nets[1]; /* variable length... */ char ru_tracefile[1]; /* ditto ... */ diff --git a/inet/protocols/talkd.h b/inet/protocols/talkd.h index a8f33b1..34e2654 100644 --- a/inet/protocols/talkd.h +++ b/inet/protocols/talkd.h @@ -52,16 +52,17 @@ #include #include +#include /* * Client->server request message format. */ typedef struct { - u_char vers; /* protocol version */ - u_char type; /* request type, see below */ - u_char answer; /* not used */ - u_char pad; - u_int32_t id_num; /* message id */ + unsigned char vers; /* protocol version */ + unsigned char type; /* request type, see below */ + unsigned char answer; /* not used */ + unsigned char pad; + uint32_t id_num; /* message id */ struct osockaddr addr; /* old (4.3) style */ struct osockaddr ctl_addr; /* old (4.3) style */ int32_t pid; /* caller's process id */ @@ -76,11 +77,11 @@ typedef struct { * Server->client response message format. */ typedef struct { - u_char vers; /* protocol version */ - u_char type; /* type of request message, see below */ - u_char answer; /* response to request message, see below */ - u_char pad; - u_int32_t id_num; /* message id */ + unsigned char vers; /* protocol version */ + unsigned char type; /* type of request message, see below */ + unsigned char answer; /* response to request message, see below */ + unsigned char pad; + uint32_t id_num; /* message id */ struct osockaddr addr; /* address for establishing conversation */ } CTL_RESPONSE; diff --git a/inet/protocols/timed.h b/inet/protocols/timed.h index b5d4702..cabdce4 100644 --- a/inet/protocols/timed.h +++ b/inet/protocols/timed.h @@ -44,9 +44,9 @@ #define MAXHOSTNAMELEN 64 struct tsp { - u_char tsp_type; - u_char tsp_vers; - u_short tsp_seq; + unsigned char tsp_type; + unsigned char tsp_vers; + unsigned short tsp_seq; union { struct timeval tspu_time; char tspu_hopcnt; -- cgit v1.1