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Diffstat (limited to 'src/libnet_link_snoop.c')
-rw-r--r--src/libnet_link_snoop.c40
1 files changed, 28 insertions, 12 deletions
diff --git a/src/libnet_link_snoop.c b/src/libnet_link_snoop.c
index 8b3636e..883875c 100644
--- a/src/libnet_link_snoop.c
+++ b/src/libnet_link_snoop.c
@@ -59,13 +59,15 @@ libnet_open_link(libnet_t *l)
struct sockaddr_raw sr;
uint v;
- if (l == NULL) {
+ if (l == NULL)
+ {
return -1;
}
l->fd = socket(PF_RAW, SOCK_RAW, RAWPROTO_DRAIN);
- if (l->fd < 0) {
+ if (l->fd < 0)
+ {
snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
"drain socket: %s", strerror(errno));
goto bad;
@@ -76,7 +78,8 @@ libnet_open_link(libnet_t *l)
strncpy(sr.sr_ifname, l->device, sizeof(sr.sr_ifname) - 1);
sr.sr_ifname[sizeof(sr.sr_ifname) - 1] = '\0';
- if (bind(l->fd, (struct sockaddr *)&sr, sizeof(sr))) {
+ if (bind(l->fd, (struct sockaddr *)&sr, sizeof(sr)))
+ {
snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
"drain bind: %s", strerror(errno));
goto bad;
@@ -93,19 +96,26 @@ libnet_open_link(libnet_t *l)
strncmp("ep", l->device, 2) == 0 || /* Challenge 8x10 Mbit EPLEX */
strncmp("vfe", l->device, 3) == 0 || /* Challenge VME 100Mbit */
strncmp("fa", l->device, 2) == 0 ||
- strncmp("qaa", l->device, 3) == 0) {
+ strncmp("qaa", l->device, 3) == 0)
+ {
l->link_type = DLT_EN10MB;
}
else if (strncmp("ipg", l->device, 3) == 0 ||
strncmp("rns", l->device, 3) == 0 || /* O2/200/2000 FDDI */
- strncmp("xpi", l->device, 3) == 0) {
+ strncmp("xpi", l->device, 3) == 0)
+ {
l->link_type = DLT_FDDI;
}
- else if (strncmp("ppp", l->device, 3) == 0) {
+ else if (strncmp("ppp", l->device, 3) == 0)
+ {
l->link_type = DLT_RAW;
- } else if (strncmp("lo", l->device, 2) == 0) {
+ }
+ else if (strncmp("lo", l->device, 2) == 0)
+ {
l->link_type = DLT_NULL;
- } else {
+ }
+ else
+ {
snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
"drain: unknown physical layer type");
goto bad;
@@ -166,14 +176,17 @@ libnet_get_hwaddr(libnet_t *l)
struct ifreq ifdat;
int s = -1;
- if (-1 == (s = socket(PF_RAW, SOCK_RAW, RAWPROTO_SNOOP))) {
+ if (-1 == (s = socket(PF_RAW, SOCK_RAW, RAWPROTO_SNOOP)))
+ {
snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
"socket(): %s", strerror(errno));
goto errout;
}
+
memset(&ifdat, 0, sizeof(struct ifreq));
strncpy(ifdat.ifr_name, l->device, IFNAMSIZ);
- if (ioctl(s, SIOCGIFADDR, &ifdat) < 0) {
+ if (ioctl(s, SIOCGIFADDR, &ifdat) < 0)
+ {
snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
"SIOCGIFADDR: %s", strerror(errno));
goto errout;
@@ -184,13 +197,16 @@ libnet_get_hwaddr(libnet_t *l)
ETHER_ADDR_LEN);
errout:
- if (s > 0) {
+ if (s > 0)
+ {
close(s);
}
- if (ea) {
+ if (ea)
+ {
free(ea);
ea = 0;
}
+
return NULL;
}
/* ---- Emacs Variables ----