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-rw-r--r--toys/pending/ifconfig.c211
1 files changed, 34 insertions, 177 deletions
diff --git a/toys/pending/ifconfig.c b/toys/pending/ifconfig.c
index 1b6751f9..5fdc2fdc 100644
--- a/toys/pending/ifconfig.c
+++ b/toys/pending/ifconfig.c
@@ -1,11 +1,13 @@
/* ifconfig.c - Configure network interface.
*
- * Copyright 2012 Ranjan Kumar <ranjankumar.bth@gmail.com> Kyungwan Han <asura321@gamil.com>
- * Reviewed by Kyungsu Kim <kaspyx@gmail.com>, Kyungwan Han <asura321@gamil.com>
+ * Copyright 2012 Ranjan Kumar <ranjankumar.bth@gmail.com>
+ * Copyright 2012 Kyungwan Han <asura321@gamil.com>
+ * Reviewed by Kyungsu Kim <kaspyx@gmail.com>
*
* Not in SUSv4.
- *
+
USE_IFCONFIG(NEWTOY(ifconfig, "?a", TOYFLAG_BIN))
+
config IFCONFIG
bool "ifconfig"
default y
@@ -29,8 +31,8 @@ config IFCONFIG
#define FOR_ifconfig
#include "toys.h"
#include "toynet.h"
+
#include <net/route.h>
-#include <stddef.h>
#include <sys/un.h>
#include <net/if.h>
#include <net/if_arp.h>
@@ -44,19 +46,15 @@ typedef struct sockaddr_with_len {
struct sockaddr_in6 sock_in6;
}sock_u;
socklen_t socklen;
-}sockaddr_with_len;
+} sockaddr_with_len;
-//Function Declaration.
-int get_hostname(const char *, struct sockaddr_in *);
-int get_addrinfo(const char *, struct sockaddr_in6 *);
-void get_flag_value(char **, int);
-void display_routes(int, int);
+// Function Declaration.
void setport(struct sockaddr *, unsigned);
unsigned get_strtou(const char *, char **, int);
char *address_to_name(const struct sockaddr *);
sockaddr_with_len *get_sockaddr(const char *, int, sa_family_t);
-//Structure Declaration
+// Structure Declaration
typedef struct _proc_net_dev_info {
char ifrname[IFNAMSIZ]; //interface name.
unsigned long long receive_bytes; //total bytes received
@@ -76,9 +74,9 @@ typedef struct _proc_net_dev_info {
unsigned long transmit_colls;
unsigned long transmit_carrier;
unsigned long transmit_compressed; //num_tr_compressed;
-}PROC_NET_DEV_INFO;
+} PROC_NET_DEV_INFO;
-//man netdevice
+// man netdevice
typedef struct _iface_list {
int hw_type;
short ifrflags; //used for addr, broadcast, and mask.
@@ -95,7 +93,7 @@ typedef struct _iface_list {
struct ifmap ifrmap;
int non_virtual_iface;
struct _iface_list *next; //, *prev;
-}IFACE_LIST;
+} IFACE_LIST;
#define HW_NAME_LEN 20
@@ -105,7 +103,7 @@ typedef struct _hw_info {
char hw_name[HW_NAME_LEN];
char hw_title[HW_TITLE_LEN];
int hw_addrlen;
-}HW_INFO;
+} HW_INFO;
static const char *const field_format[] = {
"%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
@@ -113,8 +111,6 @@ static const char *const field_format[] = {
"%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
};
-#define PROC_NET_DEV "/proc/net/dev"
-#define PROC_NET_IFINET6 "/proc/net/if_inet6"
#define NO_RANGE -1
#define IO_MAP_INDEX 0x100
@@ -215,140 +211,6 @@ char *safe_strncpy(char *dst, const char *src, size_t size)
}
/*
- * used to get the host name from the given ip.
- */
-int get_hostname(const char *ipstr, struct sockaddr_in *sockin)
-{
- struct hostent *host;
- sockin->sin_family = AF_INET;
- sockin->sin_port = 0;
-
- if(strcmp(ipstr, "default") == 0) {
- sockin->sin_addr.s_addr = INADDR_ANY;
- return 1;
- }
-
- if(inet_aton(ipstr, &sockin->sin_addr)) return 0;
-
- host = gethostbyname(ipstr);
- if(host == NULL) return -1;
- memcpy(&sockin->sin_addr, host->h_addr_list[0], sizeof(struct in_addr));
- return 0;
-}
-
-/*
- * used to extract the address info from the given ip.
- */
-int get_addrinfo(const char *ip, struct sockaddr_in6 *sock_in6)
-{
- struct addrinfo hints, *result;
- int status = 0;
-
- memset(&hints, 0, sizeof(struct addrinfo));
- hints.ai_family = AF_INET6;
- if((status = getaddrinfo(ip, NULL, &hints, &result)) != 0) {
- perror_msg("getaddrinfo: %s", gai_strerror(status));
- return -1;
- }
- if(result) {
- memcpy(sock_in6, result->ai_addr, sizeof(*sock_in6));
- freeaddrinfo(result);
- }
- return 0;
-}
-
-/*
- * used to get the flag values for route command.
- */
-void get_flag_value(char **flagstr, int flags)
-{
- int i = 0;
- char *str = *flagstr;
- static const char flagchars[] = "GHRDMDAC";
- static const unsigned flagarray[] = {
- RTF_GATEWAY,
- RTF_HOST,
- RTF_REINSTATE,
- RTF_DYNAMIC,
- RTF_MODIFIED,
- RTF_DEFAULT,
- RTF_ADDRCONF,
- RTF_CACHE
- };
- *str++ = 'U';
- while( (*str = flagchars[i]) != 0) {
- if(flags & flagarray[i++]) ++str;
- }
-}
-
-/*
- * extract inet4 route info from /proc/net/route file and display it.
- */
-void display_routes(int is_more_info, int notresolve)
-{
-#define IPV4_MASK (RTF_GATEWAY|RTF_HOST|RTF_REINSTATE|RTF_DYNAMIC|RTF_MODIFIED)
- unsigned long dest, gate, mask;
- int flags, ref, use, metric, mss, win, irtt;
- char iface[64]={0,};
- char buf[BUFSIZ] = {0,};
- char *flag_val = xzalloc(10); //there are 9 flags "UGHRDMDAC" for route.
-
- FILE *fp = xfopen("/proc/net/route", "r");
-
- xprintf("Kernel IP routing table\n"
- "Destination Gateway Genmask Flags %s Iface\n",
- is_more_info ? " MSS Window irtt" : "Metric Ref Use");
- fgets(buf, BUFSIZ, fp); //skip 1st line.
- while(fgets(buf, BUFSIZ, fp)) {
- int nitems = 0;
- char *destip = NULL, *gateip = NULL, *maskip = NULL;
- memset(flag_val, 0, 10);
-
- nitems = sscanf(buf, "%63s%lx%lx%X%d%d%d%lx%d%d%d\n",
- iface, &dest, &gate, &flags, &ref, &use, &metric, &mask, &mss, &win, &irtt);
- if(nitems != 11) {//EOF with no (nonspace) chars read...
- if((nitems < 0) && feof(fp)) break;
- perror_exit("fscanf");
- }
- //skip down interfaces...
- if(!(flags & RTF_UP)) continue;
-
- //For Destination
- if(dest){
- if(inet_ntop(AF_INET, &dest, buf, BUFSIZ) > 0) destip = xstrdup(buf);
- }
- else {
- if(!notresolve) destip = xstrdup("default");
- else destip = xstrdup("0.0.0.0");
- }
- //For Gateway
- if(gate){
- if(inet_ntop(AF_INET, &gate, buf, BUFSIZ) > 0) gateip = xstrdup(buf);
- }
- else {
- if(!notresolve) gateip = xstrdup("*");
- else gateip = xstrdup("0.0.0.0");
- }
- //For Mask
- if(inet_ntop(AF_INET, &mask, buf, BUFSIZ) > 0) maskip = xstrdup(buf);
-
- //Get flag Values
- get_flag_value(&flag_val, (flags & IPV4_MASK));
- if(flags & RTF_REJECT) flag_val[0] = '!';
- xprintf("%-15.15s %-15.15s %-16s%-6s", destip, gateip, maskip, flag_val);
- if(destip) free(destip);
- if(gateip) free(gateip);
- if(maskip) free(maskip);
- if(is_more_info) xprintf("%5d %-5d %6d %s\n", mss, win, irtt, iface);
- else xprintf("%-6d %-2d %7d %s\n", metric, ref, use, iface);
- }//end of while...
- fclose(fp);
- if(flag_val) free(flag_val);
-#undef IPV4_MASK
- return;
-}
-
-/*
* verify the host is local unix path.
* if so, set the swl input param accordingly.
*/
@@ -1119,7 +981,7 @@ static void get_ifconfig_info(void)
char buff[BUFSIZ] = {0,};
int version_num = 0;
- FILE *fp = fopen(PROC_NET_DEV, "r");
+ FILE *fp = fopen("/proc/net/dev", "r");
if(fp == NULL)
return;
@@ -1195,44 +1057,40 @@ static void get_hw_info(int hw_type, HW_INFO *hw_info)
static void print_hw_addr(int hw_type, HW_INFO hw_info, IFACE_LIST *l_ptr)
{
- unsigned char *address = (unsigned char *) l_ptr->ifrhwaddr.sa_data;
- if(!address || (hw_info.hw_addrlen == 0))
- return;
+ unsigned char *address = (unsigned char *)l_ptr->ifrhwaddr.sa_data;
+
+ if(!address || !hw_info.hw_addrlen) return;
xprintf("HWaddr ");
- if(hw_type == ARPHRD_ETHER)
- xprintf("%02X:%02X:%02X:%02X:%02X:%02X", address[0], address[1], address[2],
- address[3], address[4], address[5]);
+ if(hw_type == ARPHRD_ETHER) {
+ int i;
+
+ for (i=0; i<6; i++) xprintf(":%02X"+!i, address[i]);
+ }
+
return;
}
static const char *get_ip_addr(struct sockaddr *skaddr)
{
- static char *ip_str = NULL;
- struct sockaddr_in *sin;
+ struct sockaddr_in *sin = (struct sockaddr_in *)skaddr;
- if(skaddr->sa_family == 0xFFFF || skaddr->sa_family == 0)
- return "[NOT SET]";
- sin = (struct sockaddr_in *)skaddr;
+ if(skaddr->sa_family == 0xFFFF || !skaddr->sa_family) return "[NOT SET]";
if(sin->sin_family != AF_INET) {
errno = EAFNOSUPPORT;
return NULL;
}
- if( (ip_str = inet_ntoa(sin->sin_addr)) != NULL)
- return ip_str;
- return NULL;
+ return inet_ntoa(sin->sin_addr);
}
static void print_ip_addr(IFACE_LIST *l_ptr)
{
const char *af_name;
int af = l_ptr->ifraddr.sa_family;
- if(af == AF_INET)
- af_name = "inet";
- else if(af == AF_INET6)
- af_name = "inet6";
- else if(af == AF_UNSPEC)
- af_name = "unspec";
+
+ if (af == AF_INET) af_name = "inet";
+ else if (af == AF_INET6) af_name = "inet6";
+ else if (af == AF_UNSPEC) af_name = "unspec";
xprintf("%10s%s addr:%s ", " ", af_name, get_ip_addr(&l_ptr->ifraddr));
if(l_ptr->ifrflags & IFF_POINTOPOINT)
@@ -1245,17 +1103,16 @@ static void print_ip_addr(IFACE_LIST *l_ptr)
static void print_iface_flags(IFACE_LIST *l_ptr)
{
- if(l_ptr->ifrflags != 0) {
+ if (l_ptr->ifrflags != 0) {
unsigned short mask = 1;
char **str = iface_flags_str;
+
for(; *str != NULL; str++) {
if(l_ptr->ifrflags & mask)
xprintf("%s ", *str);
mask = mask << 1;
}
- }
- else
- xprintf("[NO FLAGS] ");
+ } else xprintf("[NO FLAGS] ");
return;
}
@@ -1291,7 +1148,7 @@ static void print_ip6_addr(IFACE_LIST *l_ptr)
char buf[BUFSIZ] = {0,};
int plen, scope;
- FILE *fp = fopen(PROC_NET_IFINET6, "r");
+ FILE *fp = fopen("/proc/net/if_inet6", "r");
if(fp == NULL)
return;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 11:53:13 +0000