直接上代码
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int hex2num(char c)
{
if (c>='0' && c<='9') return c - '0';
if (c>='a' && c<='z') return c - 'a' + 10;//这里+10的原因是:比如16进制的a值为10
if (c>='A' && c<='Z') return c - 'A' + 10;
// printf("unexpected char: %c", c);
return -1;
}
#define ETH_NAME "ens33"
int GetLocalIp(char *localIp, unsigned char len)
{
FILE *fp;
char buf[256] = {0};
char command[256] = {0};
//char *fmt = "ifconfig %s|sed -n '2p'|sed -n 's#^.*dr:##gp'|sed -n 's#B.*$##gp'";//| awk -F '\n' '{print
直接上代码
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int hex2num(char c)
{
if (c>='0' && c<='9') return c - '0';
if (c>='a' && c<='z') return c - 'a' + 10;//这里+10的原因是:比如16进制的a值为10
if (c>='A' && c<='Z') return c - 'A' + 10;
// printf("unexpected char: %c", c);
return -1;
}
#define ETH_NAME "ens33"
int GetLocalIp(char *localIp, unsigned char len)
{
FILE *fp;
char buf[256] = {0};
char command[256] = {0};
//char *fmt = "ifconfig %s|sed -n '2p'|sed -n 's#^.*dr:##gp'|sed -n 's#B.*$##gp'";//| awk -F '\n' '{print $0}'
char *fmt = "ifconfig %s|grep 'inet '|awk '{ print $2}' ";
snprintf(command, sizeof(command), fmt, ETH_NAME);
//printf("%s", command);
if((fp = popen(command, "r")) == NULL)
{
perror("Fail to popen\n");
return -1;
}
while(fgets(buf, sizeof(buf), fp) != NULL)
{
printf("%s", buf);
}
pclose(fp);
int i=strlen(buf);
if(i>strlen("255.255.255.255"))
return -1;
buf[i-1]='\0';//去掉"\n"
snprintf(localIp, len, "%s", buf);
return 0;
}
int GetMacAddr(unsigned char *mac, unsigned char len)
{
FILE *fp;
char buf[256] = {0};
char command[256] = {0};
//char *fmt = "ifconfig %s|sed -n '2p'|sed -n 's#^.*dr:##gp'|sed -n 's#B.*$##gp'";
char *fmt = "ifconfig %s|grep 'ether'|awk '{ print $2}' ";
snprintf(command, sizeof(command), fmt, ETH_NAME);
if((fp = popen(command, "r")) == NULL)
{
perror("Fail to popen\n");
return -1;
}
while(fgets(buf, sizeof(buf), fp) != NULL)
{
printf("%s", buf);
}
pclose(fp);
char i=0;
char j=0;
for(i=0;i<strlen(buf);i++){
int ret;
ret=hex2num(buf[i]);
if(ret!=-1){
if(j%2)
mac[j/2] |=ret;
else
mac[j/2] |= ret<<4;
j++;
}
}
//printf( "%02x:%02x:%02x:%02x:%02x:%02x", mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
return 0;
}
int main()
{
char buf[128]={0};
GetLocalIp(buf,128);
printf("Ip:[%s]\n",buf);
unsigned char mac[6]={0};
GetMacAddr(mac,6);
printf( "mac:[%02x:%02x:%02x:%02x:%02x:%02x]\n", mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
}
}'
char *fmt = "ifconfig %s|grep 'inet '|awk '{ print }' ";
snprintf(command, sizeof(command), fmt, ETH_NAME);
//printf("%s", command);
if((fp = popen(command, "r")) == NULL)
{
perror("Fail to popen\n");
return -1;
}
while(fgets(buf, sizeof(buf), fp) != NULL)
{
printf("%s", buf);
}
pclose(fp);
int i=strlen(buf);
if(i>strlen("255.255.255.255"))
return -1;
buf[i-1]='
直接上代码
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int hex2num(char c)
{
if (c>='0' && c<='9') return c - '0';
if (c>='a' && c<='z') return c - 'a' + 10;//这里+10的原因是:比如16进制的a值为10
if (c>='A' && c<='Z') return c - 'A' + 10;
// printf("unexpected char: %c", c);
return -1;
}
#define ETH_NAME "ens33"
int GetLocalIp(char *localIp, unsigned char len)
{
FILE *fp;
char buf[256] = {0};
char command[256] = {0};
//char *fmt = "ifconfig %s|sed -n '2p'|sed -n 's#^.*dr:##gp'|sed -n 's#B.*$##gp'";//| awk -F '\n' '{print $0}'
char *fmt = "ifconfig %s|grep 'inet '|awk '{ print $2}' ";
snprintf(command, sizeof(command), fmt, ETH_NAME);
//printf("%s", command);
if((fp = popen(command, "r")) == NULL)
{
perror("Fail to popen\n");
return -1;
}
while(fgets(buf, sizeof(buf), fp) != NULL)
{
printf("%s", buf);
}
pclose(fp);
int i=strlen(buf);
if(i>strlen("255.255.255.255"))
return -1;
buf[i-1]='\0';//去掉"\n"
snprintf(localIp, len, "%s", buf);
return 0;
}
int GetMacAddr(unsigned char *mac, unsigned char len)
{
FILE *fp;
char buf[256] = {0};
char command[256] = {0};
//char *fmt = "ifconfig %s|sed -n '2p'|sed -n 's#^.*dr:##gp'|sed -n 's#B.*$##gp'";
char *fmt = "ifconfig %s|grep 'ether'|awk '{ print $2}' ";
snprintf(command, sizeof(command), fmt, ETH_NAME);
if((fp = popen(command, "r")) == NULL)
{
perror("Fail to popen\n");
return -1;
}
while(fgets(buf, sizeof(buf), fp) != NULL)
{
printf("%s", buf);
}
pclose(fp);
char i=0;
char j=0;
for(i=0;i<strlen(buf);i++){
int ret;
ret=hex2num(buf[i]);
if(ret!=-1){
if(j%2)
mac[j/2] |=ret;
else
mac[j/2] |= ret<<4;
j++;
}
}
//printf( "%02x:%02x:%02x:%02x:%02x:%02x", mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
return 0;
}
int main()
{
char buf[128]={0};
GetLocalIp(buf,128);
printf("Ip:[%s]\n",buf);
unsigned char mac[6]={0};
GetMacAddr(mac,6);
printf( "mac:[%02x:%02x:%02x:%02x:%02x:%02x]\n", mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
}
';//去掉"\n"
snprintf(localIp, len, "%s", buf);
return 0;
}
int GetMacAddr(unsigned char *mac, unsigned char len)
{
FILE *fp;
char buf[256] = {0};
char command[256] = {0};
//char *fmt = "ifconfig %s|sed -n '2p'|sed -n 's#^.*dr:##gp'|sed -n 's#B.*$##gp'";
char *fmt = "ifconfig %s|grep 'ether'|awk '{ print }' ";
snprintf(command, sizeof(command), fmt, ETH_NAME);
if((fp = popen(command, "r")) == NULL)
{
perror("Fail to popen\n");
return -1;
}
while(fgets(buf, sizeof(buf), fp) != NULL)
{
printf("%s", buf);
}
pclose(fp);
char i=0;
char j=0;
for(i=0;i<strlen(buf);i++){
int ret;
ret=hex2num(buf[i]);
if(ret!=-1){
if(j%2)
mac[j/2] |=ret;
else
mac[j/2] |= ret<<4;
j++;
}
}
//printf( "%02x:%02x:%02x:%02x:%02x:%02x", mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
return 0;
}
int main()
{
char buf[128]={0};
GetLocalIp(buf,128);
printf("Ip:[%s]\n",buf);
unsigned char mac[6]={0};
GetMacAddr(mac,6);
printf( "mac:[%02x:%02x:%02x:%02x:%02x:%02x]\n", mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
}
#include <stdio.h>
#include <stdlib.h>
