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author | Roland McGrath <roland@gnu.org> | 2002-07-24 22:56:44 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2002-07-24 22:56:44 +0000 |
commit | 7f1deee65e0a90d9e6699068b5d63a28d2546e12 (patch) | |
tree | b75aefbdd5d6d8347e0d4d3f665d8e49fcf6c43b /sysdeps/mach/hurd/ifreq.h | |
parent | 11d657d7278ae4f96f0f4c8655991f2818d0eeb9 (diff) | |
download | glibc-7f1deee65e0a90d9e6699068b5d63a28d2546e12.zip glibc-7f1deee65e0a90d9e6699068b5d63a28d2546e12.tar.gz glibc-7f1deee65e0a90d9e6699068b5d63a28d2546e12.tar.bz2 |
Added <ifaddrs.h> interface with functions `getifaddrs', `freeifaddrs'.
This implementation supports only IPv4.
* inet/ifaddrs.h: New file.
* sysdeps/generic/ifaddrs.c: New file.
* sysdeps/gnu/ifaddrs.c: New file.
* inet/test-ifaddrs.c: New file.
* inet/Makefile (routines): Add ifaddrs.
(headers): Add ifaddrs.h here.
(tests): Add test-ifaddrs.
* inet/Versions (GLIBC_2.3): New set, add getifaddrs and freeifaddrs.
* resolv/res_hconf.c (_res_hconf_reorder_addrs): Use an explicit
socket call to get an AF_INET socket, instead of using __opensock.
The SIOCGIFNETMASK ioctl will work only with a PF_INET socket.
* sysdeps/generic/ifreq.h (__ifreq): Take third argument SOCKFD,
if not -1 use it instead of calling __opensock.
* sysdeps/unix/sysv/linux/ifreq.h (__ifreq): Likewise.
* sysdeps/mach/hurd/ifreq.h (__ifreq): Take new argument and ignore it.
* resolv/res_hconf.c (_res_hconf_reorder_addrs): Pass new argument.
* sysdeps/mach/hurd/ifreq.h: New file.
* sysdeps/generic/ifreq.h (__if_freereq): Take second argument NUM_IFS.
* sysdeps/unix/sysv/linux/ifreq.h (__if_freereq): Likewise.
* resolv/res_hconf.c (_res_hconf_reorder_addrs): Update caller.
Diffstat (limited to 'sysdeps/mach/hurd/ifreq.h')
-rw-r--r-- | sysdeps/mach/hurd/ifreq.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/ifreq.h b/sysdeps/mach/hurd/ifreq.h new file mode 100644 index 0000000..737dee9 --- /dev/null +++ b/sysdeps/mach/hurd/ifreq.h @@ -0,0 +1,74 @@ +/* Fetch the host's network interface list. Hurd version. + Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <net/if.h> +#include <hurd.h> +#include <hurd/pfinet.h> +#include <sys/socket.h> +#include <sys/mman.h> + + +static inline void +__ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd) +{ + struct ifconf ifc; + file_t server; + + server = _hurd_socket_server (PF_INET, 0); + if (server == MACH_PORT_NULL) + { + out: + *num_ifs = 0; + *ifreqs = NULL; + } + else + { + char *data = NULL; + size_t len = 0; + error_t err = __pfinet_siocgifconf (server, -1, &data, &len); + if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED) + { + /* On the first use of the socket server during the operation, + allow for the old server port dying. */ + server = _hurd_socket_server (PF_INET, 1); + if (server == MACH_PORT_NULL) + goto out; + err = __pfinet_siocgifconf (server, -1, ifreqs, &len); + } + if (err) + goto out; + + if (len % sizeof (struct ifreq) != 0) + { + munmap (data, len); + errno = EGRATUITOUS; + goto out; + } + *num_ifs = len / sizeof (struct ifreq); + *ifreqs = (struct ifreq *) data; + } + +} + + +static inline void +__if_freereq (struct ifreq *ifreqs, int num_ifs) +{ + munmap (ifreqs, num_ifs * sizeof (struct ifreq)) +} |