diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/ifreq.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/ifreq.h | 74 |
1 files changed, 2 insertions, 72 deletions
diff --git a/sysdeps/unix/sysv/linux/ifreq.h b/sysdeps/unix/sysv/linux/ifreq.h index f498e5c32a..9e4f6622e9 100644 --- a/sysdeps/unix/sysv/linux/ifreq.h +++ b/sysdeps/unix/sysv/linux/ifreq.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1999,2002 Free Software Foundation, Inc. +/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger <aj@suse.de>. @@ -33,77 +33,7 @@ static int old_siocgifconf; #endif -static inline 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; - - /* We may be able to get the needed buffer size directly, rather than - guessing. */ - if (! old_siocgifconf) - { - ifc.ifc_buf = NULL; - ifc.ifc_len = 0; - if (__ioctl (fd, SIOCGIFCONF, &ifc) < 0 || ifc.ifc_len == 0) - { -# if __ASSUME_SIOCGIFNAME == 0 - old_siocgifconf = 1; -# endif - rq_len = RQ_IFS * sizeof (struct ifreq); - } - else - rq_len = ifc.ifc_len; - } - else - rq_len = RQ_IFS * sizeof (struct ifreq); - - /* Read all the interfaces out of the kernel. */ - while (1) - { - ifc.ifc_len = rq_len; - ifc.ifc_buf = realloc (ifc.ifc_buf, ifc.ifc_len); - if (ifc.ifc_buf == NULL || __ioctl (fd, SIOCGIFCONF, &ifc) < 0) - { - if (ifc.ifc_buf) - free (ifc.ifc_buf); - - if (fd != sockfd) - __close (fd); - - *num_ifs = 0; - *ifreqs = NULL; - return; - } - - if (!old_siocgifconf || ifc.ifc_len < rq_len) - break; - - rq_len *= 2; - } - - nifs = ifc.ifc_len / sizeof (struct ifreq); - - if (fd != sockfd) - __close (fd); - - *num_ifs = nifs; - *ifreqs = realloc (ifc.ifc_buf, nifs * sizeof (struct ifreq)); -} +extern void __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd); static inline struct ifreq * __if_nextreq (struct ifreq *ifr) |