* 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
* (default AF was wrong)
*/
-
#include <net/if.h>
#include <net/if_arp.h>
-#include "inet_common.h"
+#if (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
+# include <net/ethernet.h>
+#else
+# include <linux/if_ether.h>
+#endif
#include "libbb.h"
+#include "inet_common.h"
+
+#if ENABLE_FEATURE_HWIB
+/* #include <linux/if_infiniband.h> */
+# undef INFINIBAND_ALEN
+# define INFINIBAND_ALEN 20
+#endif
#if ENABLE_FEATURE_IPV6
# define HAVE_AFINET6 1
#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
#ifdef HAVE_AFINET6
-
-#ifndef _LINUX_IN6_H
+# ifndef _LINUX_IN6_H
/*
- * This is in linux/include/net/ipv6.h.
+ * This is from linux/include/net/ipv6.h
*/
-
struct in6_ifreq {
struct in6_addr ifr6_addr;
uint32_t ifr6_prefixlen;
unsigned int ifr6_ifindex;
};
-
-#endif
-
+# endif
#endif /* HAVE_AFINET6 */
/* Defines for glibc2.0 users. */
#ifndef SIOCSIFTXQLEN
-#define SIOCSIFTXQLEN 0x8943
-#define SIOCGIFTXQLEN 0x8942
+# define SIOCSIFTXQLEN 0x8943
+# define SIOCGIFTXQLEN 0x8942
#endif
/* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
#ifndef ifr_qlen
-#define ifr_qlen ifr_ifru.ifru_mtu
+# define ifr_qlen ifr_ifru.ifru_mtu
#endif
#ifndef HAVE_TXQUEUELEN
-#define HAVE_TXQUEUELEN 1
+# define HAVE_TXQUEUELEN 1
#endif
#ifndef IFF_DYNAMIC
-#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
+# define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
#endif
/* Display an Internet socket address. */
-static const char *INET_sprint(struct sockaddr *sap, int numeric)
+static const char* FAST_FUNC INET_sprint(struct sockaddr *sap, int numeric)
{
- static char *buff;
+ static char *buff; /* defaults to NULL */
free(buff);
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
}
#endif
-static int INET_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
+static int FAST_FUNC INET_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
{
return INET_resolve(bufp, (struct sockaddr_in *) sap, 0);
/*
}
static const struct aftype inet_aftype = {
- .name = "inet",
- .title = "DARPA Internet",
- .af = AF_INET,
- .alen = 4,
- .sprint = INET_sprint,
- .input = INET_input,
+ .name = "inet",
+ .title = "DARPA Internet",
+ .af = AF_INET,
+ .alen = 4,
+ .sprint = INET_sprint,
+ .input = INET_input,
};
#ifdef HAVE_AFINET6
/* Display an Internet socket address. */
/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
-static const char *INET6_sprint(struct sockaddr *sap, int numeric)
+static const char* FAST_FUNC INET6_sprint(struct sockaddr *sap, int numeric)
{
static char *buff;
}
#endif
-static int INET6_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
+static int FAST_FUNC INET6_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
{
return INET6_resolve(bufp, (struct sockaddr_in6 *) sap);
/*
}
static const struct aftype inet6_aftype = {
- .name = "inet6",
- .title = "IPv6",
- .af = AF_INET6,
- .alen = sizeof(struct in6_addr),
- .sprint = INET6_sprint,
- .input = INET6_input,
+ .name = "inet6",
+ .title = "IPv6",
+ .af = AF_INET6,
+ .alen = sizeof(struct in6_addr),
+ .sprint = INET6_sprint,
+ .input = INET6_input,
};
#endif /* HAVE_AFINET6 */
/* Display an UNSPEC address. */
-static char *UNSPEC_print(unsigned char *ptr)
+static char* FAST_FUNC UNSPEC_print(unsigned char *ptr)
{
static char *buff;
char *pos;
unsigned int i;
- if (!buff);
+ if (!buff)
buff = xmalloc(sizeof(struct sockaddr) * 3 + 1);
pos = buff;
for (i = 0; i < sizeof(struct sockaddr); i++) {
}
/* Display an UNSPEC socket address. */
-static const char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
+static const char* FAST_FUNC UNSPEC_sprint(struct sockaddr *sap, int numeric UNUSED_PARAM)
{
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return "[NONE SET]";
.name = "unspec",
.title = "UNSPEC",
.af = AF_UNSPEC,
- .alen = 0,
+ .alen = 0,
.print = UNSPEC_print,
.sprint = UNSPEC_sprint,
};
};
/* Check our protocol family table for this family. */
-const struct aftype *get_aftype(const char *name)
+const struct aftype* FAST_FUNC get_aftype(const char *name)
{
const struct aftype *const *afp;
struct interface {
struct interface *next, *prev;
- char name[IFNAMSIZ]; /* interface name */
- short type; /* if type */
- short flags; /* various flags */
- int metric; /* routing metric */
- int mtu; /* MTU value */
- int tx_queue_len; /* transmit queue length */
- struct ifmap map; /* hardware setup */
- struct sockaddr addr; /* IP address */
- struct sockaddr dstaddr; /* P-P IP address */
- struct sockaddr broadaddr; /* IP broadcast address */
- struct sockaddr netmask; /* IP network mask */
+ char name[IFNAMSIZ]; /* interface name */
+ short type; /* if type */
+ short flags; /* various flags */
+ int metric; /* routing metric */
+ int mtu; /* MTU value */
+ int tx_queue_len; /* transmit queue length */
+ struct ifmap map; /* hardware setup */
+ struct sockaddr addr; /* IP address */
+ struct sockaddr dstaddr; /* P-P IP address */
+ struct sockaddr broadaddr; /* IP broadcast address */
+ struct sockaddr netmask; /* IP network mask */
int has_ip;
- char hwaddr[32]; /* HW address */
+ char hwaddr[32]; /* HW address */
int statistics_valid;
- struct user_net_device_stats stats; /* statistics */
- int keepalive; /* keepalive value for SLIP */
- int outfill; /* outfill value for SLIP */
+ struct user_net_device_stats stats; /* statistics */
+ int keepalive; /* keepalive value for SLIP */
+ int outfill; /* outfill value for SLIP */
};
}
new = xzalloc(sizeof(*new));
- safe_strncpy(new->name, name, IFNAMSIZ);
+ strncpy_IFNAMSIZ(new->name, name);
nextp = ife ? &ife->next : &int_list;
new->prev = ife;
new->next = *nextp;
static char *get_name(char *name, char *p)
{
/* Extract <name> from nul-terminated p where p matches
- <name>: after leading whitespace.
- If match is not made, set name empty and return unchanged p */
- int namestart=0, nameend=0;
- while (isspace(p[namestart]))
- namestart++;
- nameend=namestart;
- while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
+ * <name>: after leading whitespace.
+ * If match is not made, set name empty and return unchanged p
+ */
+ char *nameend;
+ char *namestart = skip_whitespace(p);
+
+ nameend = namestart;
+ while (*nameend && *nameend != ':' && !isspace(*nameend))
nameend++;
- if (p[nameend]==':') {
- if ((nameend-namestart)<IFNAMSIZ) {
- memcpy(name,&p[namestart],nameend-namestart);
- name[nameend-namestart]='\0';
- p=&p[nameend];
+ if (*nameend == ':') {
+ if ((nameend - namestart) < IFNAMSIZ) {
+ memcpy(name, namestart, nameend - namestart);
+ name[nameend - namestart] = '\0';
+ p = nameend;
} else {
/* Interface name too large */
- name[0]='\0';
+ name[0] = '\0';
}
} else {
/* trailing ':' not found - return empty */
- name[0]='\0';
+ name[0] = '\0';
}
return p + 1;
}
}
}
-static inline int procnetdev_version(char *buf)
+static int procnetdev_version(char *buf)
{
if (strstr(buf, "compressed"))
return 2;
if (ioctl_or_warn(skfd, SIOCGIFCONF, &ifc) < 0) {
goto out;
}
- if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
+ if (ifc.ifc_len == (int)(sizeof(struct ifreq) * numreqs)) {
/* assume it overflowed and try again */
numreqs += 10;
continue;
if (!target)
proc_read = 1;
- fh = fopen(_PATH_PROCNET_DEV, "r");
+ fh = fopen_or_warn(_PATH_PROCNET_DEV, "r");
if (!fh) {
- bb_perror_msg("warning: cannot open %s, limiting output", _PATH_PROCNET_DEV);
return if_readconf();
}
fgets(buf, sizeof buf, fh); /* eat line */
skfd = xsocket(AF_INET, SOCK_DGRAM, 0);
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) {
close(skfd);
return -1;
}
ife->flags = ifr.ifr_flags;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
memset(ife->hwaddr, 0, 32);
if (ioctl(skfd, SIOCGIFHWADDR, &ifr) >= 0)
memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
ife->type = ifr.ifr_hwaddr.sa_family;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
ife->metric = 0;
if (ioctl(skfd, SIOCGIFMETRIC, &ifr) >= 0)
ife->metric = ifr.ifr_metric;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
ife->mtu = 0;
if (ioctl(skfd, SIOCGIFMTU, &ifr) >= 0)
ife->mtu = ifr.ifr_mtu;
memset(&ife->map, 0, sizeof(struct ifmap));
#ifdef SIOCGIFMAP
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
ife->map = ifr.ifr_map;
#endif
#ifdef HAVE_TXQUEUELEN
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
ife->tx_queue_len = -1; /* unknown value */
if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) >= 0)
ife->tx_queue_len = ifr.ifr_qlen;
ife->tx_queue_len = -1; /* unknown value */
#endif
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
ifr.ifr_addr.sa_family = AF_INET;
memset(&ife->addr, 0, sizeof(struct sockaddr));
if (ioctl(skfd, SIOCGIFADDR, &ifr) == 0) {
ife->has_ip = 1;
ife->addr = ifr.ifr_addr;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) >= 0)
ife->dstaddr = ifr.ifr_dstaddr;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
if (ioctl(skfd, SIOCGIFBRDADDR, &ifr) >= 0)
ife->broadaddr = ifr.ifr_broadaddr;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
memset(&ife->netmask, 0, sizeof(struct sockaddr));
if (ioctl(skfd, SIOCGIFNETMASK, &ifr) >= 0)
ife->netmask = ifr.ifr_netmask;
return 0;
}
-
static int do_if_fetch(struct interface *ife)
{
if (if_fetch(ife) < 0) {
.type = ARPHRD_LOOPBACK
};
-#include <net/if_arp.h>
-
-#if (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
-#include <net/ethernet.h>
-#else
-#include <linux/if_ether.h>
-#endif
-
/* Display an Ethernet address in readable format. */
-static char *pr_ether(unsigned char *ptr)
+static char* FAST_FUNC ether_print(unsigned char *ptr)
{
static char *buff;
return buff;
}
-static int in_ether(const char *bufp, struct sockaddr *sap);
+static int FAST_FUNC ether_input(const char *bufp, struct sockaddr *sap);
static const struct hwtype ether_hwtype = {
- .name = "ether",
- .title = "Ethernet",
- .type = ARPHRD_ETHER,
- .alen = ETH_ALEN,
- .print = pr_ether,
- .input = in_ether
+ .name = "ether",
+ .title = "Ethernet",
+ .type = ARPHRD_ETHER,
+ .alen = ETH_ALEN,
+ .print = ether_print,
+ .input = ether_input
};
static unsigned hexchar2int(char c)
}
/* Input an Ethernet address and convert to binary. */
-static int in_ether(const char *bufp, struct sockaddr *sap)
+static int FAST_FUNC ether_input(const char *bufp, struct sockaddr *sap)
{
unsigned char *ptr;
char c;
return 0;
}
-#include <net/if_arp.h>
-
static const struct hwtype ppp_hwtype = {
.name = "ppp",
.title = "Point-to-Point Protocol",
.suppress_null_addr = 1
};
#endif
+#if ENABLE_FEATURE_HWIB
+static const struct hwtype ib_hwtype = {
+ .name = "infiniband",
+ .title = "InfiniBand",
+ .type = ARPHRD_INFINIBAND,
+ .alen = INFINIBAND_ALEN,
+ .print = UNSPEC_print,
+ .input = in_ib,
+};
+#endif
+
static const struct hwtype *const hwtypes[] = {
&loop_hwtype,
&unspec_hwtype,
#if ENABLE_FEATURE_IPV6
&sit_hwtype,
+#endif
+#if ENABLE_FEATURE_HWIB
+ &ib_hwtype,
#endif
NULL
};
#endif
/* Check our hardware type table for this type. */
-const struct hwtype *get_hwtype(const char *name)
+const struct hwtype* FAST_FUNC get_hwtype(const char *name)
{
const struct hwtype *const *hwp;
}
/* Check our hardware type table for this type. */
-const struct hwtype *get_hwntype(int type)
+const struct hwtype* FAST_FUNC get_hwntype(int type)
{
const struct hwtype *const *hwp;
/* return 1 if address is all zeros */
static int hw_null_address(const struct hwtype *hw, void *ap)
{
- unsigned int i;
+ int i;
unsigned char *address = (unsigned char *) ap;
for (i = 0; i < hw->alen; i++)
printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
}
-static void ife_print(struct interface *ptr)
-{
- const struct aftype *ap;
- const struct hwtype *hw;
- int hf;
- int can_compress = 0;
#ifdef HAVE_AFINET6
+#define IPV6_ADDR_ANY 0x0000U
+
+#define IPV6_ADDR_UNICAST 0x0001U
+#define IPV6_ADDR_MULTICAST 0x0002U
+#define IPV6_ADDR_ANYCAST 0x0004U
+
+#define IPV6_ADDR_LOOPBACK 0x0010U
+#define IPV6_ADDR_LINKLOCAL 0x0020U
+#define IPV6_ADDR_SITELOCAL 0x0040U
+
+#define IPV6_ADDR_COMPATv4 0x0080U
+
+#define IPV6_ADDR_SCOPE_MASK 0x00f0U
+
+#define IPV6_ADDR_MAPPED 0x1000U
+#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
+
+
+static void ife_print6(struct interface *ptr)
+{
+
FILE *f;
char addr6[40], devname[20];
struct sockaddr_in6 sap;
int plen, scope, dad_status, if_idx;
char addr6p[8][5];
+
+ f = fopen_for_read(_PATH_PROCNET_IFINET6);
+ if (f == NULL)
+ return;
+
+ while (fscanf
+ (f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %02x %02x %02x %20s\n",
+ addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
+ addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
+ &dad_status, devname) != EOF
+ ) {
+ if (!strcmp(devname, ptr->name)) {
+ sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
+ addr6p[0], addr6p[1], addr6p[2], addr6p[3],
+ addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
+ inet_pton(AF_INET6, addr6,
+ (struct sockaddr *) &sap.sin6_addr);
+ sap.sin6_family = AF_INET6;
+ printf(" inet6 addr: %s/%d",
+ INET6_sprint((struct sockaddr *) &sap, 1),
+ plen);
+ printf(" Scope:");
+ switch (scope & IPV6_ADDR_SCOPE_MASK) {
+ case 0:
+ puts("Global");
+ break;
+ case IPV6_ADDR_LINKLOCAL:
+ puts("Link");
+ break;
+ case IPV6_ADDR_SITELOCAL:
+ puts("Site");
+ break;
+ case IPV6_ADDR_COMPATv4:
+ puts("Compat");
+ break;
+ case IPV6_ADDR_LOOPBACK:
+ puts("Host");
+ break;
+ default:
+ puts("Unknown");
+ }
+ }
+ }
+ fclose(f);
+}
+#else
+#define ife_print6(a) ((void)0)
#endif
+static void ife_print(struct interface *ptr)
+{
+ const struct aftype *ap;
+ const struct hwtype *hw;
+ int hf;
+ int can_compress = 0;
+
ap = get_afntype(ptr->addr.sa_family);
if (ap == NULL)
ap = get_afntype(0);
printf("%-9.9s Link encap:%s ", ptr->name, hw->title);
/* For some hardware types (eg Ash, ATM) we don't print the
hardware address if it's null. */
- if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
- hw->suppress_null_addr)))
+ if (hw->print != NULL
+ && !(hw_null_address(hw, ptr->hwaddr) && hw->suppress_null_addr)
+ ) {
printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
+ }
#ifdef IFF_PORTSEL
if (ptr->flags & IFF_PORTSEL) {
printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
printf("(auto)");
}
#endif
- puts("");
+ bb_putchar('\n');
if (ptr->has_ip) {
printf(" %s addr:%s ", ap->name,
printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
}
-#ifdef HAVE_AFINET6
-
-#define IPV6_ADDR_ANY 0x0000U
-
-#define IPV6_ADDR_UNICAST 0x0001U
-#define IPV6_ADDR_MULTICAST 0x0002U
-#define IPV6_ADDR_ANYCAST 0x0004U
-
-#define IPV6_ADDR_LOOPBACK 0x0010U
-#define IPV6_ADDR_LINKLOCAL 0x0020U
-#define IPV6_ADDR_SITELOCAL 0x0040U
-
-#define IPV6_ADDR_COMPATv4 0x0080U
-
-#define IPV6_ADDR_SCOPE_MASK 0x00f0U
-
-#define IPV6_ADDR_MAPPED 0x1000U
-#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
-
- f = fopen(_PATH_PROCNET_IFINET6, "r");
- if (f != NULL) {
- while (fscanf
- (f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %02x %02x %02x %20s\n",
- addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
- addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
- &dad_status, devname) != EOF
- ) {
- if (!strcmp(devname, ptr->name)) {
- sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
- addr6p[0], addr6p[1], addr6p[2], addr6p[3],
- addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
- inet_pton(AF_INET6, addr6,
- (struct sockaddr *) &sap.sin6_addr);
- sap.sin6_family = AF_INET6;
- printf(" inet6 addr: %s/%d",
- INET6_sprint((struct sockaddr *) &sap, 1),
- plen);
- printf(" Scope:");
- switch (scope & IPV6_ADDR_SCOPE_MASK) {
- case 0:
- puts("Global");
- break;
- case IPV6_ADDR_LINKLOCAL:
- puts("Link");
- break;
- case IPV6_ADDR_SITELOCAL:
- puts("Site");
- break;
- case IPV6_ADDR_COMPATv4:
- puts("Compat");
- break;
- case IPV6_ADDR_LOOPBACK:
- puts("Host");
- break;
- default:
- puts("Unknown");
- }
- }
- }
- fclose(f);
- }
-#endif
+ ife_print6(ptr);
printf(" ");
/* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
if (ptr->outfill || ptr->keepalive)
printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
#endif
- puts("");
+ bb_putchar('\n');
/* If needed, display the interface statistics. */
printf("\n R");
print_bytes_scaled(ptr->stats.rx_bytes, " T");
print_bytes_scaled(ptr->stats.tx_bytes, "\n");
-
}
- if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
- ptr->map.base_addr)) {
+ if (ptr->map.irq || ptr->map.mem_start
+ || ptr->map.dma || ptr->map.base_addr
+ ) {
printf(" ");
if (ptr->map.irq)
printf("Interrupt:%d ", ptr->map.irq);
}
if (ptr->map.dma)
printf("DMA chan:%x ", ptr->map.dma);
- puts("");
+ bb_putchar('\n');
}
- puts("");
+ bb_putchar('\n');
}
-
static int do_if_print(struct interface *ife) /*, int *opt_a)*/
{
int res;
return res;
}
-int display_interfaces(char *ifname)
+#if ENABLE_FEATURE_HWIB
+/* Input an Infiniband address and convert to binary. */
+int FAST_FUNC in_ib(const char *bufp, struct sockaddr *sap)
+{
+ sap->sa_family = ib_hwtype.type;
+//TODO: error check?
+ hex2bin((char*)sap->sa_data, bufp, INFINIBAND_ALEN);
+# ifdef HWIB_DEBUG
+ fprintf(stderr, "in_ib(%s): %s\n", bufp, UNSPEC_print(sap->sa_data));
+# endif
+ return 0;
+}
+#endif
+
+int FAST_FUNC display_interfaces(char *ifname)
{
int status;