aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/if_index.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1998-04-07 09:21:28 +0000
committerUlrich Drepper <drepper@redhat.com>1998-04-07 09:21:28 +0000
commit4bca4c174852bfc348f99e85684fc8f65631d125 (patch)
treea5779cb83844d32d94557e4b8613278d7d877c9b /sysdeps/unix/sysv/linux/if_index.c
parent91641c65220646ae2ad8b4ec6972adc7e6720d36 (diff)
downloadglibc-4bca4c174852bfc348f99e85684fc8f65631d125.tar
glibc-4bca4c174852bfc348f99e85684fc8f65631d125.tar.gz
glibc-4bca4c174852bfc348f99e85684fc8f65631d125.tar.bz2
glibc-4bca4c174852bfc348f99e85684fc8f65631d125.zip
Update.
1998-04-07 08:51 Ulrich Drepper <drepper@cygnus.com> * iconv/gconv.c: Take care for NULL arguments. * iconv/gconv_dl.c: Make find_func function global. * iconv/gconv_int.h: Add prototype for __gconv_find_func. Add prototypes for ASCII conversion functions. * iconv/gconv_simple.c: Add ASCII conversion functions. * locale/C-ctype.c: Correct charset name. * wcsmbs/Makefile (distribute): Add wcsmbsload.h. (routines): Remove wmemrtowcs and wmemrtombs, add wcsnlen and wcsmbsload. * wcsmbs/btowc.c: Rewrite to use iconv functionality. * wcsmbs/mbrtowc.c: Likewise. * wcsmbs/mbsnrtowcs.c: Likewise. * wcsmbs/mbsrtowcs.c: Likewise. * wcsmbs/wcrtomb.c: Likewise. * wcsmbs/wcsnrtombs.c: Likewise. * wcsmbs/wcsrtombs.c: Likewise. * wcsmbs/wctob.c: Likewise. * wcsmbs/wchar.h: Add prototype for __wcslen, wcsnlen. Remove prototypes for wmemr*. * wcsmbs/wcslen.c: Rename to __wcslen and make wcslen weak alias. * wcsmbs/wcsnlen.c: New file. * wcsmbs/wcsmbsload.c: New file. * wcsmbs/wcsmbsload.h: New file. * manual/filesys.texi: Mention risks of tmpnam and mktemp. * manual/install.texi: Describe some more critical points. * string/string.h: Add prototype for __strnlen. * string/strnlen.c: Rename to __strnlen and make strnlen weak alias. * sysdeps/posix/mktemp.c: Rewrite to allow many more files and much less predictable names. * sysdeps/posix/mkstemp.c: Likewise. 1998-04-05 Andreas Jaeger <aj@arthur.rhein-neckar.de> * manual/libc.texinfo (Top): Change "file namespace" to "local namespace". * manual/socket.texi: Change file namespace to local namespace. (Out-of-Band Data): Remove unneeded variable link. (Host Address Functions): Use uint32_t consequently and add a number of clarifications for IPv4/IPv6, classless addresses. (Internet Namespace): Added some paragraphs about IPv6. Based on suggestions by Francesco Potorti` <F.Potorti@cnuce.cnr.it>. 1998-04-05 Philip Blundell <Philip.Blundell@pobox.com> Update for draft-ietf-ipngwg-bsd-api-new-01.txt: * resolv/netdb.h (getnameinfo): Use `socklen_t' not `size_t'. (NI_NUMERICHOST, et al.): Tidy up and add comments. (AI_NUMERICHOST): Define. (getnodebyname): New prototype. (AI_V4MAPPED, et al.): New constants. * sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h (SA_LEN): New macro.< * sysdeps/generic/bits/sockaddr.h (SA_LEN): Likewise. * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add sa_len for socket. * sysdeps/unix/sysv/linux/sa_len.c: New file. * sysdeps/unix/sysv/linux/Dist: Add sa_len.c. * sysdeps/unix/sysv/linux/bits/socket.h: Make multiple #inclusion safe. * sysdeps/generic/bits/sockunion.h: New file, defining sockaddr_union. * sysdeps/unix/sysv/linux/bits/sockunion.h: Likewise. * socket/Makefile (headers): Add bits/sockunion.h. * socket/sys/socket.h: Include <bits/sockunion.h> * inet/netinet/in.h: Include <bits/sockaddr.h> rather than <sys/socket.h>, to avoid getting sockaddr_union defined. * sysdeps/generic/bits/socket.h: Allow inclusion from netinet.in.h. * sysdeps/unix/sysv/linux/bits/socket.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise. * sysdeps/unix/sysv/linux/if_index.c: Remove use of SIOCGIFCOUNT (2.2.x kernels won't have it). 1998-04-06 21:21 Ulrich Drepper <drepper@cygnus.com> * sysdeps/mach/hurd/bits/ioctls.h: Allow inclusion from hurd/ioctl.h. * sysdeps/mach/hurd/dl-sysdep.c: Use __ptr_t not caddr_t. * iconv/gconv_conf.c: Define MAXPATHLEN if not available before. Patches by UCHIYAMA Yasushi <uch@nop.or.jp>. 1998-04-05 Philip Blundell <Philip.Blundell@pobox.com> * manual/socket.texi (Socket Addresses): Fix a typo. (Interface Naming): New section. 1998-04-05 23:29 Zack Weinberg <zack@rabi.phys.columbia.edu> * configure.in: Check for CC using $ac_tool_prefix, to handle cross-compilation. Use AC_CHECK_TOOL to find MiG. * config.make.in: Add MIG to be substituted. * mach/Machrules: Don't define MIG variable. Patch by Gordon Matzigkeit <gord@profitpress.com>. 1998-04-05 Mark Kettenis <kettenis@phys.uva.nl> * elf/dl-load.c (decompose_rpath): Use local_strdup instead of strdupa to copy rpath. 1998-04-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * configure.in: Fix gcc version check. * aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less confusing. 1998-04-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * configure.in: Fix gcc version check. * aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less confusing. 1998-04-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * configure.in: Fix gcc version check. * aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less confusing. 1998-03-31 Mark Kettenis <kettenis@phys.uva.nl> * sysdeps/unix/bsd/unlockpt.c (unlockpt): Call __ptsname_r instead of ptsname_r. * stdlib/stdlib.h: Change prototype of ptsname_r to make it more like ttyname_r. * sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): Likewise. * sysdeps/generic/ptsname.c (__ptsname_r): Likewise. * sysdeps/unix/grantpt.c (grantpt): Change check of return value of __ptsname_r accordingly. * login/openpty.c (openpty): Likewise. 1998-06-04 18:47 H.J. Lu <hjl@gnu.org> * libio/fileops.c (_IO_file_xsgetn): Adjust pointers. 1998-04-06 13:58 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makeconfig (libtypes): Redo H.J. Lu's change of 1998-03-27. * Makerules: Readd missing rule for $(objpfx)stamp.oS. 1998-04-06 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/ypclnt.c: Don't give YPERR_RPC back, use the do_ypcall return value for better error checking.
Diffstat (limited to 'sysdeps/unix/sysv/linux/if_index.c')
-rw-r--r--sysdeps/unix/sysv/linux/if_index.c44
1 files changed, 19 insertions, 25 deletions
diff --git a/sysdeps/unix/sysv/linux/if_index.c b/sysdeps/unix/sysv/linux/if_index.c
index 9d9bf0e0b2..de66b5cb21 100644
--- a/sysdeps/unix/sysv/linux/if_index.c
+++ b/sysdeps/unix/sysv/linux/if_index.c
@@ -117,52 +117,46 @@ if_nameindex (void)
#else
int fd = opensock ();
struct ifconf ifc;
- unsigned int rq_ifs = 4, nifs, i;
+ unsigned int nifs, i;
int rq_len;
struct if_nameindex *idx = NULL;
-#ifdef SIOCGIFCOUNT
- static int siocgifcount_works = 1;
-#endif
+ static int new_siocgifconf = 1;
+#define RQ_IFS 4
if (fd < 0)
return NULL;
-#ifdef SIOCGIFCOUNT
- /* We may be able to find out how many interfaces really exist, rather
- than guessing. This ioctl is not present in kernels before version
- 2.1.50. */
- if (siocgifcount_works)
- {
- int serrno = errno;
+ ifc.ifc_buf = NULL;
- if (ioctl (fd, SIOCGIFCOUNT, &nifs) < 0)
+ /* We may be able to get the needed buffer size directly, rather than
+ guessing. */
+ if (new_siocgifconf)
+ {
+ ifc.ifc_buf = NULL;
+ ifc.ifc_len = 0;
+ if (ioctl (fd, SIOCGIFCONF, &ifc) < 0 || ifc.ifc_len == 0)
{
- if (errno == EINVAL)
- {
- siocgifcount_works = 0;
- __set_errno (serrno);
- }
+ new_siocgifconf = 0;
+ rq_len = RQ_IFS * sizeof (struct ifreq);
}
else
- rq_ifs = nifs + 1;
+ rq_len = ifc.ifc_len;
}
-#endif
-
- ifc.ifc_buf = NULL;
+ else
+ rq_len = RQ_IFS * sizeof (struct ifreq);
/* Read all the interfaces out of the kernel. */
do
{
- rq_len = ifc.ifc_len = rq_ifs * sizeof (struct ifreq);
- ifc.ifc_buf = alloca (ifc.ifc_len);
+ ifc.ifc_buf = alloca (ifc.ifc_len = rq_len);
if ((ifc.ifc_buf == NULL) || (ioctl (fd, SIOCGIFCONF, &ifc) < 0))
{
close (fd);
return NULL;
}
- rq_ifs *= 2;
+ rq_len *= 2;
}
- while (ifc.ifc_len == rq_len);
+ while (ifc.ifc_len == rq_len && new_siocgifconf == 0);
nifs = ifc.ifc_len / sizeof (struct ifreq);