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-rw-r--r--toys/pending/ifconfig.c286
1 files changed, 122 insertions, 164 deletions
diff --git a/toys/pending/ifconfig.c b/toys/pending/ifconfig.c
index 5fdc2fdc..d5aa21e9 100644
--- a/toys/pending/ifconfig.c
+++ b/toys/pending/ifconfig.c
@@ -10,7 +10,7 @@ USE_IFCONFIG(NEWTOY(ifconfig, "?a", TOYFLAG_BIN))
config IFCONFIG
bool "ifconfig"
- default y
+ default n
help
usage: ifconfig [-a] interface [address]
@@ -48,13 +48,11 @@ typedef struct sockaddr_with_len {
socklen_t socklen;
} sockaddr_with_len;
-// 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);
+unsigned get_strtou(char *, char **, int);
+char *address_to_name(struct sockaddr *);
+sockaddr_with_len *get_sockaddr(char *, int, sa_family_t);
-// Structure Declaration
typedef struct _proc_net_dev_info {
char ifrname[IFNAMSIZ]; //interface name.
unsigned long long receive_bytes; //total bytes received
@@ -105,7 +103,7 @@ typedef struct _hw_info {
int hw_addrlen;
} HW_INFO;
-static const char *const field_format[] = {
+static char *field_format[] = {
"%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
"%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u",
"%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
@@ -185,25 +183,25 @@ struct ifreq_inet6 {
# define INFINIBAND_ALEN 20
#endif
-static void set_data(int sockfd, struct ifreq *ifre, char *kval, int request, const char *req_name);
+static void set_data(int sockfd, struct ifreq *ifre, char *kval, int request, char *req_name);
static void set_flags(int sockfd, struct ifreq *ifre, int arg_flag, int flag); //verify
-static void set_mtu(int sockfd, struct ifreq *ifre, const char *mtu); //verify
-static void set_metric(int sockfd, struct ifreq *ifre, const char *metric); //verify
-static void set_qlen(int sockfd, struct ifreq *ifre, const char *qlen); //verify
-static void set_address(int sockfd, const char *host_name, struct ifreq *ifre, int request, const char *req_name);
-static void set_hw_address(int sockfd, char ***argv, struct ifreq *ifre, int request, const char *req_name);
-static void set_ipv6_addr(int sockfd, struct ifreq *ifre, const char *ipv6_addr, int request, const char *req_name);
-static void set_memstart(int sockfd, struct ifreq *ifre, const char *start_addr, int request, const char *req_name);
-static void set_ioaddr(int sockfd, struct ifreq *ifre, const char *baddr, int request, const char *req_name);
-static void set_irq(int sockfd, struct ifreq *ifre, const char *irq_val, int request, const char *req_name);
-
-char *omit_whitespace(const char *s)
+static void set_mtu(int sockfd, struct ifreq *ifre, char *mtu); //verify
+static void set_metric(int sockfd, struct ifreq *ifre, char *metric); //verify
+static void set_qlen(int sockfd, struct ifreq *ifre, char *qlen); //verify
+static void set_address(int sockfd, char *host_name, struct ifreq *ifre, int request, char *req_name);
+static void set_hw_address(int sockfd, char ***argv, struct ifreq *ifre, int request, char *req_name);
+static void set_ipv6_addr(int sockfd, struct ifreq *ifre, char *ipv6_addr, int request, char *req_name);
+static void set_memstart(int sockfd, struct ifreq *ifre, char *start_addr, int request, char *req_name);
+static void set_ioaddr(int sockfd, struct ifreq *ifre, char *baddr, int request, char *req_name);
+static void set_irq(int sockfd, struct ifreq *ifre, char *irq_val, int request, char *req_name);
+
+char *omit_whitespace(char *s)
{
while(*s == ' ' || (unsigned char)(*s - 9) <= (13 - 9)) s++;
return (char *) s;
}
-char *safe_strncpy(char *dst, const char *src, size_t size)
+char *safe_strncpy(char *dst, char *src, size_t size)
{
if(!size) return dst;
dst[--size] = '\0';
@@ -214,7 +212,7 @@ char *safe_strncpy(char *dst, const char *src, size_t size)
* verify the host is local unix path.
* if so, set the swl input param accordingly.
*/
-static int is_host_unix(const char *host, sockaddr_with_len **swl)
+static int is_host_unix(char *host, sockaddr_with_len **swl)
{
if(strncmp(host, "local:", 6) == 0) {
struct sockaddr_un *sockun;
@@ -234,7 +232,7 @@ static int is_host_unix(const char *host, sockaddr_with_len **swl)
static void get_host_and_port(char **host, int *port)
{
char *ch_ptr;
- const char *org_host = *host;
+ char *org_host = *host;
if(*host[0] == '[') {
(*host)++;
ch_ptr = strchr(*host, ']');
@@ -253,38 +251,33 @@ static void get_host_and_port(char **host, int *port)
if(*ch_ptr != ':') {
ch_ptr++; //skip ']'
//[nn] without port
- if(*ch_ptr == '\0')
- return;
+ if(!*ch_ptr) return;
}
ch_ptr++; //skip ':' to get the port number.
*port = get_strtou(ch_ptr, NULL, 10);
if(errno || (unsigned)*port > 65535)
error_exit("bad port spec '%s'", org_host);
}
- return;
}
/*
* used to extract the address info from the given host ip
* and update the swl param accordingly.
*/
-static int get_socket_stream(const char *host, sa_family_t af, sockaddr_with_len **swl)
+static int get_socket_stream(char *host, sa_family_t af, sockaddr_with_len **swl)
{
- struct addrinfo hints;
- struct addrinfo *result, *rp;
- int status = 0;
+ struct addrinfo hints, *result, *rp;
+ int status;
memset(&hints, 0 , sizeof(struct addrinfo));
hints.ai_family = af;
hints.ai_socktype = SOCK_STREAM;
- if((status = getaddrinfo(host, NULL, &hints, &result)) != 0) {
- perror_exit("bad address '%s' : %s", host, gai_strerror(status));
- return status;
- }
+ status = getaddrinfo(host, NULL, &hints, &result);
+ if (status) perror_exit("bad address '%s' : %s", host, gai_strerror(status));
- for(rp = result; rp != NULL; rp = rp->ai_next) {
- if( (rp->ai_family == AF_INET) || (rp->ai_family == AF_INET6)) {
+ for(rp = result; rp; rp = rp->ai_next) {
+ if(rp->ai_family == AF_INET || rp->ai_family == AF_INET6) {
*swl = xmalloc(sizeof(struct sockaddr_with_len));
(*swl)->socklen = rp->ai_addrlen;
memcpy(&((*swl)->sock_u.sock), rp->ai_addr, rp->ai_addrlen);
@@ -292,36 +285,36 @@ static int get_socket_stream(const char *host, sa_family_t af, sockaddr_with_len
}
}
freeaddrinfo(result);
- return ((!rp)? -1: status);
+ return rp ? 0 : -1;
}
/*
* use to get the socket address with the given host ip.
*/
-sockaddr_with_len *get_sockaddr(const char *host, int port, sa_family_t af)
+sockaddr_with_len *get_sockaddr(char *host, int port, sa_family_t af)
{
sockaddr_with_len *swl = NULL;
- int status = 0;
+ in_port_t port_num = htons(port);
- //for unix
- int is_unix = is_host_unix(host, &swl);
- if(is_unix && swl) return swl;
+ if(is_host_unix(host, &swl) && swl) return swl;
//[IPV6_ip]:port_num
if(host[0] == '[' || strrchr(host, ':')) get_host_and_port((char **)&host, &port);
- //for the socket streams.
- status = get_socket_stream(host, af, &swl);
- if(status) return NULL;
+ if (get_socket_stream(host, af, &swl)) return NULL;
+
+ if(swl->sock_u.sock.sa_family == AF_INET)
+ swl->sock_u.sock_in.sin_port = port_num;
+ else if(swl->sock_u.sock.sa_family == AF_INET6)
+ swl->sock_u.sock_in6.sin6_port = port_num;
- setport(&swl->sock_u.sock, htons(port));
return swl;
}
/*
* get the numeric hostname and service name, for a given socket address.
*/
-char *address_to_name(const struct sockaddr *sock)
+char *address_to_name(struct sockaddr *sock)
{
//man page of getnameinfo.
char hbuf[NI_MAXHOST] = {0,}, sbuf[NI_MAXSERV] = {0,};
@@ -360,23 +353,16 @@ char *address_to_name(const struct sockaddr *sock)
*/
void setport(struct sockaddr *sock, unsigned port_num)
{
- //for ipv4
- if(sock->sa_family == AF_INET) {
- struct sockaddr_in *sock_in = (void*)sock;
- sock_in->sin_port = port_num;
- }
- //for ipv6
- else if(sock->sa_family == AF_INET6) {
- struct sockaddr_in6 *sock_in6 = (void*)sock;
- sock_in6->sin6_port = port_num;
- }
- return;
+ if(sock->sa_family == AF_INET)
+ ((struct sockaddr_in *)sock)->sin_port = port_num;
+ else if(sock->sa_family == AF_INET6)
+ ((struct sockaddr_in6 *)sock)->sin6_port = port_num;
}
/*
* used to converts string into int and validate the input str for invalid int value or out-of-range.
*/
-unsigned get_strtou(const char *str, char **endp, int base)
+unsigned get_strtou(char *str, char **endp, int base)
{
unsigned long uli;
char *endptr;
@@ -421,12 +407,12 @@ void ifconfig_main(void)
{
char **argv = toys.optargs;
- if(argv[0] && (strcmp(argv[0], "--help") == 0))
+ if(*argv && (strcmp(*argv, "--help") == 0))
show_help();
//"ifconfig" / "ifconfig eth0"
if(!argv[0] || !argv[1]) { //one or no argument
- toys.exitval = show_iface(argv[0]);
+ toys.exitval = show_iface(*argv);
//free allocated memory.
clear_list();
return;
@@ -441,155 +427,140 @@ void ifconfig_main(void)
strncpy(ifre.ifr_name, *argv, IFNAMSIZ);
ifre.ifr_name[IFNAMSIZ-1] = 0;
if((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
- perror_exit("cannot open control socket\n", 1);
+ perror_exit("socket");
while(*++argv != NULL) {
/* flags settings */
- if(strcmp(argv[0], "up") == 0)
+ if (!strcmp(*argv, "up"))
set_flags(sockfd, &ifre, IFF_UP | IFF_RUNNING, 0);
- else if(strcmp(argv[0], "down") == 0)
+ else if (!strcmp(*argv, "down"))
set_flags(sockfd, &ifre, 0, IFF_UP);
- else if(strcmp(argv[0], "arp") == 0)
+ else if (!strcmp(*argv, "arp"))
set_flags(sockfd, &ifre, 0, IFF_NOARP);
- else if(strcmp(argv[0], "-arp") == 0)
+ else if (!strcmp(*argv, "-arp"))
set_flags(sockfd, &ifre, IFF_NOARP, 0);
- else if(strcmp(argv[0], "trailers") == 0)
+ else if (!strcmp(*argv, "trailers"))
set_flags(sockfd, &ifre, 0, IFF_NOTRAILERS);
- else if(strcmp(argv[0], "-trailers") == 0)
+ else if (!strcmp(*argv, "-trailers"))
set_flags(sockfd, &ifre, IFF_NOTRAILERS, 0);
- else if(strcmp(argv[0], "promisc") == 0)
+ else if (!strcmp(*argv, "promisc"))
set_flags(sockfd, &ifre, IFF_PROMISC, 0);
- else if(strcmp(argv[0], "-promisc") == 0)
+ else if (!strcmp(*argv, "-promisc"))
set_flags(sockfd, &ifre, 0, IFF_PROMISC);
- else if(strcmp(argv[0], "allmulti") == 0)
+ else if (!strcmp(*argv, "allmulti"))
set_flags(sockfd, &ifre, IFF_ALLMULTI, 0);
- else if(strcmp(argv[0], "-allmulti") == 0)
+ else if (!strcmp(*argv, "-allmulti"))
set_flags(sockfd, &ifre, 0, IFF_ALLMULTI);
- else if(strcmp(argv[0], "multicast") == 0)
+ else if (!strcmp(*argv, "multicast"))
set_flags(sockfd, &ifre, IFF_MULTICAST, 0);
- else if(strcmp(argv[0], "-multicast") == 0)
+ else if (!strcmp(*argv, "-multicast"))
set_flags(sockfd, &ifre, 0, IFF_MULTICAST);
- else if(strcmp(argv[0], "dynamic") == 0)
+ else if (!strcmp(*argv, "dynamic"))
set_flags(sockfd, &ifre, IFF_DYNAMIC, 0);
- else if(strcmp(argv[0], "-dynamic") == 0)
+ else if (!strcmp(*argv, "-dynamic"))
set_flags(sockfd, &ifre, 0, IFF_DYNAMIC);
- else if(strcmp(argv[0], "-pointopoint") == 0)
+ else if (!strcmp(*argv, "-pointopoint"))
set_flags(sockfd, &ifre, 0, IFF_POINTOPOINT);
/*value setup */
- else if(strcmp(argv[0], "pointopoint") == 0) {
+ else if (!strcmp(*argv, "pointopoint")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
set_address(sockfd, *argv, &ifre, SIOCSIFDSTADDR, "SIOCSIFDSTADDR");
set_flags(sockfd, &ifre, IFF_POINTOPOINT, 0);
- }
- else if(strcmp(argv[0], "netmask") == 0) {
+ } else if (!strcmp(*argv, "netmask")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
set_address(sockfd, *argv, &ifre, SIOCSIFNETMASK, "SIOCSIFNETMASK");
- }
- else if(strcmp(argv[0], "-broadcast") == 0) {
+ } else if (!strcmp(*argv, "-broadcast")) {
set_flags(sockfd, &ifre, 0, IFF_BROADCAST);
- }
- else if(strcmp(argv[0], "broadcast") == 0) {
+ } else if (!strcmp(*argv, "broadcast")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
set_address(sockfd, *argv, &ifre, SIOCSIFBRDADDR, "SIOCSIFBRDADDR");
set_flags(sockfd, &ifre, IFF_BROADCAST, 0);
- }
- else if(strcmp(argv[0], "dstaddr") == 0) {
+ } else if (!strcmp(*argv, "dstaddr")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
set_address(sockfd, *argv, &ifre, SIOCSIFDSTADDR, "SIOCSIFDSTADDR");
- }
- else if(strcmp(argv[0], "hw") == 0) {
+ } else if (!strcmp(*argv, "hw")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
set_hw_address(sockfd, &argv, &ifre, SIOCSIFHWADDR, "SIOCSIFHWADDR");
- }
- else if(strcmp(argv[0], "mtu") == 0) {
+ } else if (!strcmp(*argv, "mtu")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_mtu(sockfd, &ifre, argv[0]);
- }//end of mtu
- else if(strcmp(argv[0], "metric") == 0) {
+ set_mtu(sockfd, &ifre, *argv);
+ } else if (!strcmp(*argv, "metric")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_metric(sockfd, &ifre, argv[0]);
- }//end of metric
- else if(strcmp(argv[0], "txqueuelen") == 0) {
+ set_metric(sockfd, &ifre, *argv);
+ } else if (!strcmp(*argv, "txqueuelen")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_qlen(sockfd, &ifre, argv[0]);
- }//end of txqueuelen
- else if(strcmp(argv[0], "keepalive") == 0) {
+ set_qlen(sockfd, &ifre, *argv);
+ } else if (!strcmp(*argv, "keepalive")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_data(sockfd, &ifre, argv[0], SIOCSKEEPALIVE, "SIOCSKEEPALIVE");
+ set_data(sockfd, &ifre, *argv, SIOCSKEEPALIVE, "SIOCSKEEPALIVE");
}//end of keepalive
- else if(strcmp(argv[0], "outfill") == 0) {
+ else if (!strcmp(*argv, "outfill")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_data(sockfd, &ifre, argv[0], SIOCSOUTFILL, "SIOCSOUTFILL");
- }//end of outfill
- else if(strcmp(argv[0], "add") == 0) {
+ set_data(sockfd, &ifre, *argv, SIOCSOUTFILL, "SIOCSOUTFILL");
+ } else if (!strcmp(*argv, "add")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_ipv6_addr(sockfd, &ifre, argv[0], SIOCSIFADDR, "SIOCSIFADDR");
- }//end of add ipv6 addr
- else if(strcmp(argv[0], "del") == 0) {
+ set_ipv6_addr(sockfd, &ifre, *argv, SIOCSIFADDR, "SIOCSIFADDR");
+ } else if (!strcmp(*argv, "del")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_ipv6_addr(sockfd, &ifre, argv[0], SIOCDIFADDR, "SIOCDIFADDR");
- }//end of del ipv6 addr
- else if(strcmp(argv[0], "mem_start") == 0) {
+ set_ipv6_addr(sockfd, &ifre, *argv, SIOCDIFADDR, "SIOCDIFADDR");
+ } else if (!strcmp(*argv, "mem_start")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_memstart(sockfd, &ifre, argv[0], SIOCSIFMAP, "SIOCSIFMAP");
- }//end of mem_start
- else if(strcmp(argv[0], "io_addr") == 0) {
+ set_memstart(sockfd, &ifre, *argv, SIOCSIFMAP, "SIOCSIFMAP");
+ } else if (!strcmp(*argv, "io_addr")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_ioaddr(sockfd, &ifre, argv[0], SIOCSIFMAP, "SIOCSIFMAP");
- }//end of io_addr
- else if(strcmp(argv[0], "irq") == 0) {
+ set_ioaddr(sockfd, &ifre, *argv, SIOCSIFMAP, "SIOCSIFMAP");
+ } else if (!strcmp(*argv, "irq")) {
if(*++argv == NULL) {
errno = EINVAL;
show_help();
}
- set_irq(sockfd, &ifre, argv[0], SIOCSIFMAP, "SIOCSIFMAP");
- }//end of irq
- else {
- if(isdigit(argv[0][0]) || (strcmp(argv[0], "default") == 0)) {
+ set_irq(sockfd, &ifre, *argv, SIOCSIFMAP, "SIOCSIFMAP");
+ } else {
+ if(isdigit(**argv) || !strcmp(*argv, "default")) {
char *iface_name = ifre.ifr_name;
short int is_colon = 0;
set_address(sockfd, *argv, &ifre, SIOCSIFADDR, "SIOCSIFADDR");
@@ -603,21 +574,18 @@ void ifconfig_main(void)
//if the interface name is not an alias; set the flag and continue.
if(!is_colon)
set_flags(sockfd, &ifre, IFF_UP | IFF_RUNNING, 0);
- }
- else if((strcmp(argv[0], "inet") == 0) || (strcmp(argv[0], "inet6") == 0))
+ } else if (!strcmp(*argv, "inet") || !strcmp(*argv, "inet6"))
continue;
else {
errno = EINVAL;
show_help();
}
- }//set ip for an interface.
+ }
- }//end of while.
- if(sockfd > 0)
- close(sockfd);
+ }
+ if(sockfd > 0) close(sockfd);
}
- return;
-}//End of main function.
+}
static void set_flags(int sockfd, struct ifreq *ifre, int set_flag, int reset_flag)
@@ -630,7 +598,7 @@ static void set_flags(int sockfd, struct ifreq *ifre, int set_flag, int reset_fl
return;
}
-static void set_data(int sockfd, struct ifreq *ifre, char *kval, int request, const char *req_name)
+static void set_data(int sockfd, struct ifreq *ifre, char *kval, int request, char *req_name)
{
unsigned long val = strtoul(kval, NULL, 0);
char *ptr;
@@ -642,7 +610,7 @@ static void set_data(int sockfd, struct ifreq *ifre, char *kval, int request, co
}
return;
}
-static void set_mtu(int sockfd, struct ifreq *ifre, const char *mtu)
+static void set_mtu(int sockfd, struct ifreq *ifre, char *mtu)
{
ifre->ifr_mtu = strtoul(mtu, NULL, 0);
if(ioctl(sockfd, SIOCSIFMTU, ifre) < 0)
@@ -650,7 +618,7 @@ static void set_mtu(int sockfd, struct ifreq *ifre, const char *mtu)
return;
}
-static void set_metric(int sockfd, struct ifreq *ifre, const char *metric)
+static void set_metric(int sockfd, struct ifreq *ifre, char *metric)
{
ifre->ifr_metric = strtoul(metric, NULL, 0);
if(ioctl(sockfd, SIOCSIFMETRIC, ifre) < 0)
@@ -658,7 +626,7 @@ static void set_metric(int sockfd, struct ifreq *ifre, const char *metric)
return;
}
-static void set_qlen(int sockfd, struct ifreq *ifre, const char *qlen)
+static void set_qlen(int sockfd, struct ifreq *ifre, char *qlen)
{
ifre->ifr_qlen = strtoul(qlen, NULL, 0);
if(ioctl(sockfd, SIOCSIFTXQLEN, ifre) < 0)
@@ -666,7 +634,7 @@ static void set_qlen(int sockfd, struct ifreq *ifre, const char *qlen)
return;
}
-static void set_ipv6_addr(int sockfd, struct ifreq *ifre, const char *ipv6_addr, int request, const char *req_name)
+static void set_ipv6_addr(int sockfd, struct ifreq *ifre, char *ipv6_addr, int request, char *req_name)
{
char *prefix;
int plen = 0;
@@ -701,7 +669,7 @@ static void set_ipv6_addr(int sockfd, struct ifreq *ifre, const char *ipv6_addr,
return;
}
-static void set_address(int sockfd, const char *host_name, struct ifreq *ifre, int request, const char *req_name)
+static void set_address(int sockfd, char *host_name, struct ifreq *ifre, int request, char *req_name)
{
struct sockaddr_in sock_in;
sockaddr_with_len *swl = NULL;
@@ -728,7 +696,7 @@ static void set_address(int sockfd, const char *host_name, struct ifreq *ifre, i
return;
}
-static int hex_to_binary(const char *hw_addr, struct sockaddr *sock, int count)
+static int hex_to_binary(char *hw_addr, struct sockaddr *sock, int count)
{
int i = 0, j = 0;
unsigned char nib_val;
@@ -772,7 +740,7 @@ static int hex_to_binary(const char *hw_addr, struct sockaddr *sock, int count)
return 0;
}
-static void set_hw_address(int sockfd, char ***argv, struct ifreq *ifre, int request, const char *req_name)
+static void set_hw_address(int sockfd, char ***argv, struct ifreq *ifre, int request, char *req_name)
{
int hw_class = 0;
char *hw_addr;
@@ -808,7 +776,7 @@ static void set_hw_address(int sockfd, char ***argv, struct ifreq *ifre, int req
return;
}
-static void set_memstart(int sockfd, struct ifreq *ifre, const char *start_addr, int request, const char *req_name)
+static void set_memstart(int sockfd, struct ifreq *ifre, char *start_addr, int request, char *req_name)
{
unsigned long mem_start = strtoul(start_addr, NULL, 0);
@@ -820,7 +788,7 @@ static void set_memstart(int sockfd, struct ifreq *ifre, const char *start_addr,
return;
}
-static void set_ioaddr(int sockfd, struct ifreq *ifre, const char *baddr, int request, const char *req_name)
+static void set_ioaddr(int sockfd, struct ifreq *ifre, char *baddr, int request, char *req_name)
{
unsigned short int base_addr = strtoul(baddr, NULL, 0);
if(ioctl(sockfd, SIOCGIFMAP, ifre) < 0)
@@ -831,20 +799,18 @@ static void set_ioaddr(int sockfd, struct ifreq *ifre, const char *baddr, int re
return;
}
-static void set_irq(int sockfd, struct ifreq *ifre, const char *irq_val, int request, const char *req_name)
+static void set_irq(int sockfd, struct ifreq *ifre, char *irq_val, int request, char *req_name)
{
unsigned short int irq = strtoul(irq_val, NULL, 0);
char *ptr;
struct ifmap *map;
- if(ioctl(sockfd, SIOCGIFMAP, ifre) < 0)
- perror_exit("SIOCGIFMAP");
+ if(ioctl(sockfd, SIOCGIFMAP, ifre) < 0) perror_exit("SIOCGIFMAP");
ptr = ((char *) ifre) + offsetof(struct ifreq, ifr_map);
map = (struct ifmap *)ptr;
map->irq = irq;
- if(ioctl(sockfd, request, ifre) < 0)
- perror_exit((char *)req_name);
+ if(ioctl(sockfd, request, ifre) < 0) perror_exit(req_name);
return;
}
@@ -909,7 +875,6 @@ static void add_iface_to_list(IFACE_LIST *newnode)
current->next = newnode;
}
iface_list_head = head_ref;
- return;
}
static int get_device_info(IFACE_LIST *l_ptr)
@@ -1002,7 +967,7 @@ static void get_ifconfig_info(void)
l_ptr->non_virtual_iface = 1;
errno = 0;
if(get_device_info(l_ptr) < 0) {
- const char *errstr = strerror(errno);
+ char *errstr = strerror(errno);
fclose(fp);
fp = NULL;
clear_list();
@@ -1011,12 +976,12 @@ static void get_ifconfig_info(void)
}//end of while.
fclose(fp);
fp = NULL;
- return;
}
static void get_hw_info(int hw_type, HW_INFO *hw_info)
{
-#define HW_UNSPEC -1
+ memset(hw_info, 0, sizeof(HW_INFO));
+
switch(hw_type) {
case ARPHRD_LOOPBACK: //Loopback device.
strncpy(hw_info->hw_name, "loop", HW_NAME_LEN);
@@ -1043,7 +1008,7 @@ static void get_hw_info(int hw_type, HW_INFO *hw_info)
strncpy(hw_info->hw_title, "IPv6-in-IPv4", HW_TITLE_LEN);
hw_info->hw_addrlen = 0;
break;
- case HW_UNSPEC: //UNSPEC
+ case -1:
strncpy(hw_info->hw_name, "unspec", HW_NAME_LEN);
strncpy(hw_info->hw_title, "UNSPEC", HW_TITLE_LEN);
hw_info->hw_addrlen = 0;
@@ -1051,8 +1016,6 @@ static void get_hw_info(int hw_type, HW_INFO *hw_info)
default:
break;
}
-#undef HW_UNSPEC
- return;
}
static void print_hw_addr(int hw_type, HW_INFO hw_info, IFACE_LIST *l_ptr)
@@ -1070,7 +1033,7 @@ static void print_hw_addr(int hw_type, HW_INFO hw_info, IFACE_LIST *l_ptr)
return;
}
-static const char *get_ip_addr(struct sockaddr *skaddr)
+static char *get_ip_addr(struct sockaddr *skaddr)
{
struct sockaddr_in *sin = (struct sockaddr_in *)skaddr;
@@ -1085,7 +1048,7 @@ static const char *get_ip_addr(struct sockaddr *skaddr)
static void print_ip_addr(IFACE_LIST *l_ptr)
{
- const char *af_name;
+ char *af_name;
int af = l_ptr->ifraddr.sa_family;
if (af == AF_INET) af_name = "inet";
@@ -1201,15 +1164,13 @@ static void display_ifconfig(IFACE_LIST *l_ptr)
HW_INFO hw_info;
int hw_type = l_ptr->hw_type;
- memset(&hw_info, 0, sizeof(HW_INFO));
-
get_hw_info(hw_type, &hw_info);
xprintf("%-9s Link encap:%s ", l_ptr->dev_info.ifrname, hw_info.hw_title);
print_hw_addr(hw_type, hw_info, l_ptr);
print_media(l_ptr);
- xprintf("\n");
+ xputc('\n');
if(l_ptr->ifaddr)
print_ip_addr(l_ptr); //print addr, p-p addr, broadcast addr and mask addr.
@@ -1218,8 +1179,7 @@ static void display_ifconfig(IFACE_LIST *l_ptr)
xprintf("%10s", " ");
//print flags
print_iface_flags(l_ptr);
- if(!l_ptr->ifrmetric)
- l_ptr->ifrmetric = 1;
+ if(!l_ptr->ifrmetric) l_ptr->ifrmetric = 1;
xprintf(" MTU:%d Metric:%d", l_ptr->ifrmtu, l_ptr->ifrmetric);
xprintf("\n");
if(l_ptr->non_virtual_iface) {
@@ -1256,16 +1216,15 @@ static void display_ifconfig(IFACE_LIST *l_ptr)
xprintf("Memory:%lx-%lx ", l_ptr->ifrmap.mem_start, l_ptr->ifrmap.mem_end);
if(l_ptr->ifrmap.dma)
xprintf("DMA chan:%x ", l_ptr->ifrmap.dma);
- xprintf("\n");
+ xputc('\n');
}
- xprintf("\n");
+ xputc('\n');
return;
}
static int readconf(void)
{
-#define NUM_OF_REQUESTS 30
- int num_of_req = NUM_OF_REQUESTS;
+ int num_of_req = 30;
struct ifconf ifcon;
struct ifreq *ifre;
int num, status = -1, sokfd;
@@ -1319,7 +1278,7 @@ static int readconf(void)
LOOP_BREAK:
close(sokfd);
free(ifcon.ifc_buf);
-#undef NUM_OF_REQUESTS
+
return status;
}
@@ -1343,7 +1302,7 @@ static int show_iface(char *iface_name)
safe_strncpy(l_ptr->dev_info.ifrname, iface_name, IFNAMSIZ);
errno = 0;
if(get_device_info(l_ptr) < 0) {
- const char *errmsg;
+ char *errmsg;
if(errno == ENODEV) errmsg = "Device not found";
else errmsg = strerror(errno);
error_msg("%s: error getting interface info: %s", iface_name, errmsg);
@@ -1353,8 +1312,7 @@ static int show_iface(char *iface_name)
else display_ifconfig(l_ptr);
free(l_ptr);
}
- }
- else {
+ } else {
IFACE_LIST *l_ptr;
if(readconf() < 0) return 1;
for(l_ptr = iface_list_head; l_ptr; l_ptr = l_ptr->next) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 06:56:11 +0000