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--- a/ether-wake.c 2013-09-03 18:15:13.000000000 +0200
+++ b/ether-wake.c 2013-09-03 17:39:02.000000000 +0200
@@ -22,7 +22,7 @@
" Options:\n"
" -b Send wake-up packet to the broadcast address.\n"
" -D Increase the debug level.\n"
-" -i ifname Use interface IFNAME instead of the default 'eth0'.\n"
+" -i ifname Use interface ifname instead of sending a wake packet to all interfaces.\n"
" -p <pw> Append the four or six byte password PW to the packet.\n"
" A password is only required for a few adapter types.\n"
" The password may be specified in ethernet hex format\n"
@@ -89,6 +89,9 @@
#include <netdb.h>
#include <netinet/ether.h>
+#include "interface.h"
+#include "sockets.h"
+
/* Grrr, no consistency between include versions.
Enable this if setsockopt() isn't declared with your library. */
#if 0
@@ -110,20 +113,29 @@
static int get_fill(unsigned char *pkt, struct ether_addr *eaddr);
static int get_wol_pw(const char *optarg);
+typedef struct {
+ int s;
+ int verbose;
+ int pktsize;
+} if_info;
+
+static int send_wol_packet(char *ifname, int s, int verbose, int pktsize);
+
+static int do_wake(struct interface *ife, void *cookie) {
+ if_info *info = (if_info *)cookie;
+ send_wol_packet(ife->name, info->s, info->verbose, info->pktsize);
+ return 0;
+}
+
int main(int argc, char *argv[])
{
- char *ifname = "eth0";
- int one = 1; /* True, for socket options. */
+ char *ifname = NULL;
int s; /* Raw socket */
int errflag = 0, verbose = 0, do_version = 0;
int perm_failure = 0;
- int i, c, pktsize;
-#if defined(PF_PACKET)
- struct sockaddr_ll whereto;
-#else
- struct sockaddr whereto; /* who to wake up */
-#endif
+ int c, pktsize;
struct ether_addr eaddr;
+ if_info info;
while ((c = getopt(argc, argv, "bDi:p:uvV")) != -1)
switch (c) {
@@ -177,13 +189,45 @@
pktsize = get_fill(outpack, &eaddr);
+ if (ifname == NULL) {
+ info.s = s;
+ info.verbose = verbose;
+ info.pktsize = pktsize;
+
+ /* Create a channel to the NET kernel. */
+ if ((sockets_open(0)) < 0) {
+ perror("socket");
+ exit(1);
+ }
+
+ return for_all_interfaces(do_wake, &info);
+ }
+
+ return send_wol_packet(ifname, s, verbose, pktsize);
+}
+
+/* Send a Wake-On-LAN (WOL) "Magic Packet" to Interface IFNAME using
+ Socket S with a packet size PKTSIZE. VERBOSE implies
+ verbosity. */
+
+static int send_wol_packet(char *ifname, int s, int verbose, int pktsize)
+{
+ int i;
+ int one = 1; /* True, for socket options. */
+#if defined(PF_PACKET)
+ struct sockaddr_ll whereto;
+#else
+ struct sockaddr whereto; /* who to wake up */
+#endif
+
/* Fill in the source address, if possible.
The code to retrieve the local station address is Linux specific. */
if (! opt_no_src_addr) {
struct ifreq if_hwaddr;
- unsigned char *hwaddr = if_hwaddr.ifr_hwaddr.sa_data;
+ char *hwaddr = if_hwaddr.ifr_hwaddr.sa_data;
- strcpy(if_hwaddr.ifr_name, ifname);
+ strncpy(if_hwaddr.ifr_name, ifname, IFNAMSIZ);
+ if_hwaddr.ifr_name[IFNAMSIZ-1] = '\0';
if (ioctl(s, SIOCGIFHWADDR, &if_hwaddr) < 0) {
fprintf(stderr, "SIOCGIFHWADDR on %s failed: %s\n", ifname,
strerror(errno));
@@ -220,7 +264,8 @@
#if defined(PF_PACKET)
{
struct ifreq ifr;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ ifr.ifr_name[IFNAMSIZ-1] = '\0';
if (ioctl(s, SIOCGIFINDEX, &ifr) == -1) {
fprintf(stderr, "SIOCGIFINDEX on %s failed: %s\n", ifname,
strerror(errno));
--- a/Makefile 2013-09-03 13:15:22.531951613 +0100
+++ b/Makefile 2013-09-03 13:24:29.659823455 +0100
@@ -188,6 +188,8 @@
mii-tool: $(NET_LIB) mii-tool.o
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ mii-tool.o $(NLIB) $(RESLIB)
+ether-wake: $(NET_LIB) ether-wake.o
+ $(CC) $(LDFLAGS) -o ether-wake ether-wake.o $(NLIB)
installbin:
@echo
@echo "######################################################"
--- a/man/en_US/ether-wake.8 2013-09-03 13:15:22.576952098 +0100
+++ b/man/en_US/ether-wake.8 2013-09-03 13:14:55.270657575 +0100
@@ -49,7 +49,7 @@
Increase the Debug Level.
.TP
.B \-i ifname
-Use interface ifname instead of the default "eth0".
+Use interface ifname instead of sending a wake packet to all interfaces.
.TP
.B \-p passwd
Append a four or six byte password to the packet. Only a few adapters