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| author | Eric Andersen <andersen@codepoet.org> | 2002-07-03 11:46:38 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2002-07-03 11:46:38 +0000 |
| commit | 51b8bd68bb22b1cc5d95e418813c2f08a194ec2b (patch) | |
| tree | 905d4f1b1e557950272ac98e1540fa06f732f42f /libbb/create_icmp6_socket.c | |
| parent | 599e3ce163c43c3dfb24d06f8f707c783bc9ab9c (diff) | |
| download | busybox-51b8bd68bb22b1cc5d95e418813c2f08a194ec2b.tar.gz | |
This patch from Bart Visscher <magick@linux-fan.com> adds
IPV6 support to busybox. This patch does the following:
* Add IPv6 support to libbb
* Enable IPv6 interface address display
* Add IPv6 config option
* Adds ping6, an adaptation of the ping applet for IPv6
* Adds support routines for ping6:
- xgethostbyname2
- create_icmp6_socket
* Adds ifconfig support for IPv6
* Add support IPv6 to netstat
* Add IPv6 support to route
Thanks Bart!
Diffstat (limited to 'libbb/create_icmp6_socket.c')
| -rw-r--r-- | libbb/create_icmp6_socket.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/libbb/create_icmp6_socket.c b/libbb/create_icmp6_socket.c new file mode 100644 index 000000000..a09565605 --- /dev/null +++ b/libbb/create_icmp6_socket.c @@ -0,0 +1,39 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * create raw socket for icmp (IPv6 version) protocol test permision + * and drop root privilegies if running setuid + * + */ + +#include <sys/types.h> +#include <netdb.h> +#include <sys/socket.h> +#include <errno.h> +#include <unistd.h> +#include "libbb.h" + +#if CONFIG_FEATURE_IPV6 +int create_icmp6_socket(void) +{ + struct protoent *proto; + int sock; + + proto = getprotobyname("ipv6-icmp"); + /* if getprotobyname failed, just silently force + * proto->p_proto to have the correct value for "ipv6-icmp" */ + if ((sock = socket(AF_INET6, SOCK_RAW, + (proto ? proto->p_proto : IPPROTO_ICMPV6))) < 0) { + if (errno == EPERM) + error_msg_and_die("permission denied. (are you root?)"); + else + perror_msg_and_die(can_not_create_raw_socket); + } + + /* drop root privs if running setuid */ + setuid(getuid()); + + return sock; +} +#endif |