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-rw-r--r--sysdeps/generic/truncate.c5
-rw-r--r--sysdeps/mach/hurd/truncate.c5
-rw-r--r--sysdeps/unix/common/syscalls.list2
-rw-r--r--sysdeps/unix/sysv/linux/if_index.c159
-rw-r--r--sysdeps/unix/sysv/linux/ifaddrs.c83
-rw-r--r--sysdeps/unix/sysv/linux/netlinkaccess.h62
-rw-r--r--sysdeps/unix/sysv/linux/truncate64.c4
7 files changed, 249 insertions, 71 deletions
diff --git a/sysdeps/generic/truncate.c b/sysdeps/generic/truncate.c
index d7713b16d2..6d0f0c3bcb 100644
--- a/sysdeps/generic/truncate.c
+++ b/sysdeps/generic/truncate.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996, 1997, 2004 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
@@ -21,13 +21,14 @@
/* Truncate PATH to LENGTH bytes. */
int
-truncate (path, length)
+__truncate (path, length)
const char *path;
off_t length;
{
__set_errno (ENOSYS);
return -1;
}
+weak_alias (__truncate, truncate)
stub_warning (truncate)
#include <stub-tag.h>
diff --git a/sysdeps/mach/hurd/truncate.c b/sysdeps/mach/hurd/truncate.c
index 6fc961efa1..aaca1b2fc3 100644
--- a/sysdeps/mach/hurd/truncate.c
+++ b/sysdeps/mach/hurd/truncate.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 92, 93, 94, 95, 97, 98 Free Software Foundation, Inc.
+/* Copyright (C) 1991,92,93,94,95,97,98,2004 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
@@ -24,7 +24,7 @@
/* Truncate FILE_NAME to LENGTH bytes. */
int
-truncate (file_name, length)
+__truncate (file_name, length)
const char *file_name;
off_t length;
{
@@ -41,3 +41,4 @@ truncate (file_name, length)
return __hurd_fail (err);
return 0;
}
+weak_alias (__truncate, truncate)
diff --git a/sysdeps/unix/common/syscalls.list b/sysdeps/unix/common/syscalls.list
index bb475df25d..baec92f783 100644
--- a/sysdeps/unix/common/syscalls.list
+++ b/sysdeps/unix/common/syscalls.list
@@ -12,5 +12,5 @@ setregid - setregid i:ii __setregid setregid
setreuid - setreuid i:ii __setreuid setreuid
sigaction - sigaction i:ipp __sigaction sigaction
sys_lstat lxstat lstat i:sp __syscall_lstat
-truncate - truncate i:si truncate
+truncate - truncate i:si __truncate truncate
vhangup - vhangup i:i vhangup
diff --git a/sysdeps/unix/sysv/linux/if_index.c b/sysdeps/unix/sysv/linux/if_index.c
index 92fb11b180..377ccf5199 100644
--- a/sysdeps/unix/sysv/linux/if_index.c
+++ b/sysdeps/unix/sysv/linux/if_index.c
@@ -28,10 +28,11 @@
#include <bits/libc-lock.h>
#include <not-cancel.h>
-#include "kernel-features.h"
+#include "netlinkaccess.h"
+
/* Variable to signal whether SIOCGIFCONF is not available. */
-#if __ASSUME_SIOCGIFNAME == 0
+# if __ASSUME_SIOCGIFNAME == 0
static int old_siocgifconf;
#else
# define old_siocgifconf 0
@@ -73,20 +74,18 @@ if_freenameindex (struct if_nameindex *ifn)
struct if_nameindex *ptr = ifn;
while (ptr->if_name || ptr->if_index)
{
- if (ptr->if_name)
- free (ptr->if_name);
+ free (ptr->if_name);
++ptr;
}
free (ifn);
}
+libc_hidden_def (if_freenameindex)
-struct if_nameindex *
-if_nameindex (void)
+
+#if __ASSUME_NETLINK_SUPPORT == 0
+static struct if_nameindex *
+if_nameindex_ioctl (void)
{
-#ifndef SIOCGIFINDEX
- __set_errno (ENOSYS);
- return NULL;
-#else
int fd = __opensock ();
struct ifconf ifc;
unsigned int nifs, i;
@@ -174,8 +173,147 @@ if_nameindex (void)
close_not_cancel_no_status (fd);
return idx;
+}
+#endif
+
+
+static struct if_nameindex *
+if_nameindex_netlink (void)
+{
+ struct netlink_handle nh = { 0, 0, 0, NULL, NULL };
+ struct if_nameindex *idx = NULL;
+
+ if (__no_netlink_support || __netlink_open (&nh) < 0)
+ return NULL;
+
+
+ /* Tell the kernel that we wish to get a list of all
+ active interfaces. */
+ if (__netlink_sendreq (&nh, RTM_GETLINK) < 0)
+ goto exit_close;
+
+ /* Collect all data for every interface. */
+ if (__netlink_receive (&nh) < 0)
+ goto exit_free;
+
+ /* Count the interfaces. */
+ unsigned int nifs = 0;
+ for (struct netlink_res *nlp = nh.nlm_list; nlp; nlp = nlp->next)
+ {
+ struct nlmsghdr *nlh;
+ size_t size = nlp->size;
+
+ if (nlp->nlh == NULL)
+ continue;
+
+ /* Walk through all entries we got from the kernel and look, which
+ message type they contain. */
+ for (nlh = nlp->nlh; NLMSG_OK (nlh, size); nlh = NLMSG_NEXT (nlh, size))
+ {
+ /* Check if the message is what we want. */
+ if ((pid_t) nlh->nlmsg_pid != nh.pid || nlh->nlmsg_seq != nlp->seq)
+ continue;
+
+ if (nlh->nlmsg_type == NLMSG_DONE)
+ break; /* ok */
+
+ if (nlh->nlmsg_type == RTM_NEWLINK)
+ ++nifs;
+ }
+ }
+
+ idx = malloc ((nifs + 1) * sizeof (struct if_nameindex));
+ if (idx == NULL)
+ {
+ nomem:
+ __set_errno (ENOBUFS);
+ goto exit_free;
+ }
+
+ /* Add the interfaces. */
+ nifs = 0;
+ for (struct netlink_res *nlp = nh.nlm_list; nlp; nlp = nlp->next)
+ {
+ struct nlmsghdr *nlh;
+ size_t size = nlp->size;
+
+ if (nlp->nlh == NULL)
+ continue;
+
+ /* Walk through all entries we got from the kernel and look, which
+ message type they contain. */
+ for (nlh = nlp->nlh; NLMSG_OK (nlh, size); nlh = NLMSG_NEXT (nlh, size))
+ {
+ /* Check if the message is what we want. */
+ if ((pid_t) nlh->nlmsg_pid != nh.pid || nlh->nlmsg_seq != nlp->seq)
+ continue;
+
+ if (nlh->nlmsg_type == NLMSG_DONE)
+ break; /* ok */
+
+ if (nlh->nlmsg_type == RTM_NEWLINK)
+ {
+ struct ifinfomsg *ifim = (struct ifinfomsg *) NLMSG_DATA (nlh);
+ struct rtattr *rta = IFLA_RTA (ifim);
+ size_t rtasize = IFLA_PAYLOAD (nlh);
+
+ idx[nifs].if_index = ifim->ifi_index;
+
+ while (RTA_OK (rta, rtasize))
+ {
+ char *rta_data = RTA_DATA (rta);
+ size_t rta_payload = RTA_PAYLOAD (rta);
+
+ if (rta->rta_type == IFLA_IFNAME)
+ {
+ idx[nifs].if_name = __strndup (rta_data, rta_payload);
+ if (idx[nifs].if_name == NULL)
+ {
+ idx[nifs].if_index = 0;
+ if_freenameindex (idx);
+ idx = NULL;
+ goto nomem;
+ }
+ break;
+ }
+
+ rta = RTA_NEXT (rta, rtasize);
+ }
+
+ ++nifs;
+ }
+ }
+ }
+
+ idx[nifs].if_index = 0;
+ idx[nifs].if_name = NULL;
+
+ exit_free:
+ __netlink_free_handle (&nh);
+ exit_close:
+ __netlink_close (&nh);
+
+ return idx;
+}
+
+
+struct if_nameindex *
+if_nameindex (void)
+{
+#ifndef SIOCGIFINDEX
+ __set_errno (ENOSYS);
+ return NULL;
+#else
+ struct if_nameindex *result = if_nameindex_netlink ();
+# if __ASSUME_NETLINK_SUPPORT == 0
+ if (__no_netlink_support)
+ result = if_nameindex_ioctl ();
+# endif
+ return result;
#endif
}
+libc_hidden_def (if_nameindex)
+
char *
if_indextoname (unsigned int ifindex, char *ifname)
@@ -263,6 +401,7 @@ if_indextoname (unsigned int ifindex, char *ifname)
}
libc_hidden_def (if_indextoname)
+
#if 0
void
internal_function
diff --git a/sysdeps/unix/sysv/linux/ifaddrs.c b/sysdeps/unix/sysv/linux/ifaddrs.c
index 439e26f76c..f4dce4cd61 100644
--- a/sysdeps/unix/sysv/linux/ifaddrs.c
+++ b/sysdeps/unix/sysv/linux/ifaddrs.c
@@ -1,5 +1,5 @@
/* getifaddrs -- get names and addresses of all network interfaces
- Copyright (C) 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004 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
@@ -32,11 +32,8 @@
#include <time.h>
#include <unistd.h>
-#include <asm/types.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
+#include "netlinkaccess.h"
-#include "kernel-features.h"
/* We don't know if we have NETLINK support compiled in in our
Kernel, so include the old implementation as fallback. */
@@ -46,33 +43,9 @@ int __no_netlink_support attribute_hidden;
# define getifaddrs fallback_getifaddrs
# include "sysdeps/gnu/ifaddrs.c"
# undef getifaddrs
-
-#else
-
-# define __no_netlink_support 0
-
#endif
-struct netlink_res
-{
- struct netlink_res *next;
- struct nlmsghdr *nlh;
- size_t size; /* Size of response. */
- uint32_t seq; /* sequential number we used. */
-};
-
-
-struct netlink_handle
-{
- int fd; /* Netlink file descriptor. */
- pid_t pid; /* Process ID. */
- uint32_t seq; /* The sequence number we use currently. */
- struct netlink_res *nlm_list; /* Pointer to list of responses. */
- struct netlink_res *end_ptr; /* For faster append of new entries. */
-};
-
-
/* struct to hold the data for one ifaddrs entry, so we can allocate
everything at once. */
struct ifaddrs_storage
@@ -91,8 +64,8 @@ struct ifaddrs_storage
};
-static void
-free_netlink_handle (struct netlink_handle *h)
+void
+__netlink_free_handle (struct netlink_handle *h)
{
struct netlink_res *ptr;
int saved_errno = errno;
@@ -107,12 +80,12 @@ free_netlink_handle (struct netlink_handle *h)
ptr = tmpptr;
}
- errno = saved_errno;
+ __set_errno (saved_errno);
}
-static int
-netlink_sendreq (struct netlink_handle *h, int type)
+int
+__netlink_sendreq (struct netlink_handle *h, int type)
{
struct
{
@@ -140,8 +113,8 @@ netlink_sendreq (struct netlink_handle *h, int type)
}
-static int
-netlink_receive (struct netlink_handle *h)
+int
+__netlink_receive (struct netlink_handle *h)
{
struct netlink_res *nlm_next;
char buf[4096];
@@ -211,8 +184,8 @@ netlink_receive (struct netlink_handle *h)
}
-static void
-netlink_close (struct netlink_handle *h)
+void
+__netlink_close (struct netlink_handle *h)
{
/* Don't modify errno. */
INTERNAL_SYSCALL_DECL (err);
@@ -221,21 +194,25 @@ netlink_close (struct netlink_handle *h)
/* Open a NETLINK socket. */
-static int
-netlink_open (struct netlink_handle *h)
+int
+__netlink_open (struct netlink_handle *h)
{
struct sockaddr_nl nladdr;
h->fd = __socket (PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (h->fd < 0)
- return -1;
+ goto out;
memset (&nladdr, '\0', sizeof (nladdr));
nladdr.nl_family = AF_NETLINK;
if (__bind (h->fd, (struct sockaddr *) &nladdr, sizeof (nladdr)) < 0)
{
close_and_out:
- netlink_close (h);
+ __netlink_close (h);
+ out:
+#if __ASSUME_NETLINK_SUPPORT == 0
+ __no_netlink_support = 1;
+#endif
return -1;
}
/* Determine the ID the kernel assigned for this netlink connection.
@@ -298,12 +275,10 @@ getifaddrs (struct ifaddrs **ifap)
if (ifap)
*ifap = NULL;
- if (! __no_netlink_support && netlink_open (&nh) < 0)
+ if (! __no_netlink_support && __netlink_open (&nh) < 0)
{
-#if __ASSUME_NETLINK_SUPPORT == 0
- __no_netlink_support = 1;
-#else
- return -1;
+#if __ASSUME_NETLINK_SUPPORT != 0
+ return -1;
#endif
}
@@ -314,13 +289,13 @@ getifaddrs (struct ifaddrs **ifap)
/* Tell the kernel that we wish to get a list of all
active interfaces. */
- if (netlink_sendreq (&nh, RTM_GETLINK) < 0)
+ if (__netlink_sendreq (&nh, RTM_GETLINK) < 0)
{
result = -1;
goto exit_close;
}
/* Collect all data for every interface. */
- if (netlink_receive (&nh) < 0)
+ if (__netlink_receive (&nh) < 0)
{
result = -1;
goto exit_free;
@@ -332,9 +307,9 @@ getifaddrs (struct ifaddrs **ifap)
interfaces in the list, we will later always find the
interface before the corresponding addresses. */
++nh.seq;
- if (netlink_sendreq (&nh, RTM_GETADDR) < 0
+ if (__netlink_sendreq (&nh, RTM_GETADDR) < 0
/* Collect all data for every interface. */
- || netlink_receive (&nh) < 0)
+ || __netlink_receive (&nh) < 0)
{
result = -1;
goto exit_free;
@@ -355,7 +330,7 @@ getifaddrs (struct ifaddrs **ifap)
message type they contain. */
for (nlh = nlp->nlh; NLMSG_OK (nlh, size); nlh = NLMSG_NEXT (nlh, size))
{
- /* check if the message is what we want */
+ /* Check if the message is what we want. */
if ((pid_t) nlh->nlmsg_pid != nh.pid || nlh->nlmsg_seq != nlp->seq)
continue;
@@ -791,10 +766,10 @@ getifaddrs (struct ifaddrs **ifap)
*ifap = &ifas[0].ifa;
exit_free:
- free_netlink_handle (&nh);
+ __netlink_free_handle (&nh);
exit_close:
- netlink_close (&nh);
+ __netlink_close (&nh);
return result;
}
diff --git a/sysdeps/unix/sysv/linux/netlinkaccess.h b/sysdeps/unix/sysv/linux/netlinkaccess.h
new file mode 100644
index 0000000000..6672e714ff
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/netlinkaccess.h
@@ -0,0 +1,62 @@
+/* Copyright (C) 2004 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. */
+
+#ifndef _NETLINKACCESS_H
+#define _NETLINKACCESS_H 1
+
+#include <asm/types.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+
+#include "kernel-features.h"
+
+
+struct netlink_res
+{
+ struct netlink_res *next;
+ struct nlmsghdr *nlh;
+ size_t size; /* Size of response. */
+ uint32_t seq; /* sequential number we used. */
+};
+
+
+struct netlink_handle
+{
+ int fd; /* Netlink file descriptor. */
+ pid_t pid; /* Process ID. */
+ uint32_t seq; /* The sequence number we use currently. */
+ struct netlink_res *nlm_list; /* Pointer to list of responses. */
+ struct netlink_res *end_ptr; /* For faster append of new entries. */
+};
+
+
+#if __ASSUME_NETLINK_SUPPORT == 0
+extern int __no_netlink_support attribute_hidden;
+#else
+# define __no_netlink_support 0
+#endif
+
+
+extern int __netlink_open (struct netlink_handle *h);
+extern void __netlink_close (struct netlink_handle *h);
+extern void __netlink_free_handle (struct netlink_handle *h);
+extern int __netlink_sendreq (struct netlink_handle *h, int type);
+extern int __netlink_receive (struct netlink_handle *h);
+
+
+#endif /* netlinkaccess.h */
diff --git a/sysdeps/unix/sysv/linux/truncate64.c b/sysdeps/unix/sysv/linux/truncate64.c
index 764e808386..e6af2c4b04 100644
--- a/sysdeps/unix/sysv/linux/truncate64.c
+++ b/sysdeps/unix/sysv/linux/truncate64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 1999, 2000, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2000, 2003, 2004 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
@@ -65,7 +65,7 @@ truncate64 (const char *path, off64_t length)
__set_errno (EINVAL);
return -1;
}
- return truncate (path, (off_t) length);
+ return __truncate (path, (off_t) length);
#endif
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 04:31:03 +0000