diff options
Diffstat (limited to 'libc/inet/ifreq.c')
| -rw-r--r-- | libc/inet/ifreq.c | 61 |
1 files changed, 4 insertions, 57 deletions
diff --git a/libc/inet/ifreq.c b/libc/inet/ifreq.c index 2db6d0c30..d94d339c6 100644 --- a/libc/inet/ifreq.c +++ b/libc/inet/ifreq.c @@ -1,6 +1,6 @@ -/* Copyright (C) 1999-2013 Free Software Foundation, Inc. +/* Collect network interface list. Stub version. + Copyright (C) 2013 Free Software Foundation, Inc. This file is part of the GNU C Library. - Contributed by Andreas Jaeger <aj@suse.de>. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -18,62 +18,9 @@ #include "ifreq.h" - void __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd) { - int fd = sockfd; - struct ifconf ifc; - int rq_len; - int nifs; -# define RQ_IFS 4 - - if (fd < 0) - fd = __opensock (); - if (fd < 0) - { - *num_ifs = 0; - *ifreqs = NULL; - return; - } - - ifc.ifc_buf = NULL; - rq_len = RQ_IFS * sizeof (struct ifreq) / 2; /* Doubled in the loop. */ - do - { - ifc.ifc_len = rq_len *= 2; - void *newp = realloc (ifc.ifc_buf, ifc.ifc_len); - if (newp == NULL || __ioctl (fd, SIOCGIFCONF, &ifc) < 0) - { - free (ifc.ifc_buf); - - if (fd != sockfd) - __close (fd); - *num_ifs = 0; - *ifreqs = NULL; - return; - } - ifc.ifc_buf = newp; - } - while (rq_len < sizeof (struct ifreq) + ifc.ifc_len); - - if (fd != sockfd) - __close (fd); - -#ifdef _HAVE_SA_LEN - struct ifreq *ifr = *ifreqs; - nifs = 0; - while ((char *) ifr < ifc.ifc_buf + ifc.ifc_len) - { - ++nifs; - ifr = __if_nextreq (ifr); - if (ifr == NULL) - break; - } -#else - nifs = ifc.ifc_len / sizeof (struct ifreq); -#endif - - *num_ifs = nifs; - *ifreqs = realloc (ifc.ifc_buf, nifs * sizeof (struct ifreq)); + *num_ifs = 0; + *ifreqs = NULL; } |