tisdag den 21 september 2010 klockan 15:52 skrev Simon Josefsson detta:
> Mats Erik Andersson <mats.anders...@gisladisker.se> writes:
>
> > tisdag den 21 september 2010 klockan 14:22 skrev Simon Josefsson detta:
> >> As an initial response to this problem, I'm installing a self check of
> >> the net/if.h interface. See below. Mats, if you could quote the
> >> compiler errors you get when building the self-check below on OpenBSD,
> >> that would be useful. The next step is to see how gnulib can provide a
> >> replacement that works on various systems. Perhaps OpenBSD isn't the
> >> only system not working here.
> >>
> >> /Simon
> >
> > Quickest reply without need to test compile:
> >
> > #include <sys/types.h>
> > #include <sys/socket.h>
> > #include <net/if.h>
> >
> > is the mandatory order for OpenBSD! Lest <config.h> knows that,
> > the test must augmented. Will return later for more info.
>
> That's the first thing a gnulib net/if.h replacement header should
> provide then, since I believe the net/if.h header needs to be
> self-contained according to POSIX.
>
> It would be interesting to see if the self tests works even if you make
> the above modification, though. Also try running it with a command line
> parameter and check that it prints all the host interfaces on your
> machine.
My protocol "report_for_test_net_if.txt" is attached. I am not able
to compile the test into any working executable for OpenBSD 4.6.
The mishaps are due to "if_freenameindex".
In contrast, the original text works for Debian Squeeze, of course.
Mats E A
Test protocol of "test-net_if.c" on OpenBSD 4.6
===============================================
Common compiling step
$ gcc test-net_if.c
Line numbering in printouts is consistent since all of
my inclusion additions were inserted once and then
deactivated using "//" as protector.
##
## Only <config.h> removed from the suggested module.
##
In file included from test-net_if.c:22:
/usr/include/net/if.h:240: error: `AF_MAX' undeclared here (not in a function)
/usr/include/net/if.h:578: error: field `ifru_addr' has incomplete type
/usr/include/net/if.h:579: error: field `ifru_dstaddr' has incomplete type
/usr/include/net/if.h:580: error: field `ifru_broadaddr' has incomplete type
/usr/include/net/if.h:598: error: field `ifra_addr' has incomplete type
/usr/include/net/if.h:599: error: field `ifra_dstaddr' has incomplete type
/usr/include/net/if.h:601: error: field `ifra_mask' has incomplete type
/usr/include/net/if.h:639: error: field `addr' has incomplete type
/usr/include/net/if.h:640: error: field `dstaddr' has incomplete type
In file included from /usr/include/net/if.h:657,
from test-net_if.c:22:
/usr/include/net/if_arp.h:79: error: field `arp_pa' has incomplete type
/usr/include/net/if_arp.h:80: error: field `arp_ha' has incomplete type
test-net_if.c: In function `main':
test-net_if.c:30: error: `if_freenameindex' undeclared (first use in this
function)
test-net_if.c:30: error: (Each undeclared identifier is reported only once
test-net_if.c:30: error: for each function it appears in.)
##
## Addition:
##
## #include <sys/types.h>
##
In file included from test-net_if.c:22:
/usr/include/net/if.h:240: error: `AF_MAX' undeclared here (not in a function)
/usr/include/net/if.h:578: error: field `ifru_addr' has incomplete type
/usr/include/net/if.h:579: error: field `ifru_dstaddr' has incomplete type
/usr/include/net/if.h:580: error: field `ifru_broadaddr' has incomplete type
/usr/include/net/if.h:598: error: field `ifra_addr' has incomplete type
/usr/include/net/if.h:599: error: field `ifra_dstaddr' has incomplete type
/usr/include/net/if.h:601: error: field `ifra_mask' has incomplete type
/usr/include/net/if.h:639: error: field `addr' has incomplete type
/usr/include/net/if.h:640: error: field `dstaddr' has incomplete type
In file included from /usr/include/net/if.h:657,
from test-net_if.c:22:
/usr/include/net/if_arp.h:79: error: field `arp_pa' has incomplete type
/usr/include/net/if_arp.h:80: error: field `arp_ha' has incomplete type
test-net_if.c: In function `main':
test-net_if.c:30: error: `if_freenameindex' undeclared (first use in this
function)
test-net_if.c:30: error: (Each undeclared identifier is reported only once
test-net_if.c:30: error: for each function it appears in.)
##
## Addition:
##
## #include <sys/socket.h>
##
In file included from test-net_if.c:21:
/usr/include/sys/socket.h:152: error: syntax error before "u_int8_t"
/usr/include/sys/socket.h:170: error: syntax error before "u_int8_t"
/usr/include/sys/socket.h:173: error: syntax error before "u_int64_t"
/usr/include/sys/socket.h:239: error: syntax error before "uid_t"
/usr/include/sys/socket.h:244: error: syntax error before "gid_t"
/usr/include/sys/socket.h:372: error: syntax error before "socklen_t"
/usr/include/sys/socket.h:376: error: syntax error before "socklen_t"
/usr/include/sys/socket.h:398: error: syntax error before "socklen_t"
/usr/include/sys/socket.h:454: error: syntax error before "caddr_t"
/usr/include/sys/socket.h:458: error: syntax error before "caddr_t"
In file included from test-net_if.c:21:
/usr/include/sys/socket.h:469: error: syntax error before "socklen_t"
/usr/include/sys/socket.h:470: error: syntax error before "socklen_t"
/usr/include/sys/socket.h:471: error: syntax error before "socklen_t"
/usr/include/sys/socket.h:472: error: syntax error before "uid_t"
/usr/include/sys/socket.h:473: error: syntax error before "socklen_t"
/usr/include/sys/socket.h:474: error: syntax error before "socklen_t"
/usr/include/sys/socket.h:475: error: syntax error before "socklen_t"
/usr/include/sys/socket.h:477: error: syntax error before "recv"
/usr/include/sys/socket.h:477: error: syntax error before "size_t"
/usr/include/sys/socket.h:478: error: syntax error before "recvfrom"
/usr/include/sys/socket.h:478: error: syntax error before "size_t"
/usr/include/sys/socket.h:479: error: syntax error before "recvmsg"
/usr/include/sys/socket.h:480: error: syntax error before "send"
/usr/include/sys/socket.h:480: error: syntax error before "size_t"
/usr/include/sys/socket.h:481: error: syntax error before "sendto"
/usr/include/sys/socket.h:482: error: syntax error before "size_t"
/usr/include/sys/socket.h:483: error: syntax error before "sendmsg"
/usr/include/sys/socket.h:484: error: syntax error before "socklen_t"
test-net_if.c: In function `main':
test-net_if.c:30: error: `if_freenameindex' undeclared (first use in this
function)
test-net_if.c:30: error: (Each undeclared identifier is reported only once
test-net_if.c:30: error: for each function it appears in.)
##
## Additions:
##
## #include <sys/types.h>
## #include <sys/socket.h>
##
test-net_if.c: In function `main':
test-net_if.c:30: error: `if_freenameindex' undeclared (first use in this
function)
test-net_if.c:30: error: (Each undeclared identifier is reported only once
test-net_if.c:30: error: for each function it appears in.)
##
## Additions:
##
## #include <sys/types.h>
## #include <sys/socket.h>
##
## #undefine if_freenameindex
##
test-net_if.c: In function `main':
test-net_if.c:32: error: `if_freenameindex' undeclared (first use in this
function)
test-net_if.c:32: error: (Each undeclared identifier is reported only once
test-net_if.c:32: error: for each function it appears in.)
test-net_if.c:84: error: `if_freenameindex' used prior to declaration
##
## Addendum:
##
## The relevant part from /usr/include/net/if.h is this
#ifndef _KERNEL
__BEGIN_DECLS
unsigned int if_nametoindex(const char *);
char *if_indextoname(unsigned int, char *);
struct if_nameindex *if_nameindex(void);
__END_DECLS
#define if_freenameindex(x) free(x)
#endif
