- 下載: wireless tools for linux Wireless Tools (WT)
- 編譯: make make install (default: /usr/local/sbin)
- 指令:
iwconfig
iwlist
iwspy
iwpriv
ifrename
- 使用:
iwlist wlan0 scanning | grep -e ESSID -e Quality -e Encryption -e IE
有時候不知為什麼會出現不少沒名字的
ex: ESSID:""
iwlist wlan0 scan | grep -E 'ESSID:".+"' or iwlist wlan0 scan | grep 'ESSID:"..*"'ref: Here
為了方便分析，把原本iwlist的印出方法改了一下
- iwlib.c, (copy it from wireless tools for linux)
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void iw_print_stats(char * buffer,
int buflen,
const iwqual * qual,
const iwrange * range,
int has_range)
{
int len;
...
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if(has_range && ((qual->level != 0)
|| (qual->updated & (IW_QUAL_DBM | IW_QUAL_RCPI))))
{
/* Deal with quality : always a relative value */
if(!(qual->updated & IW_QUAL_QUAL_INVALID))
{
len = snprintf(buffer, buflen, "Quality%c%d/%d ",
qual->updated & IW_QUAL_QUAL_UPDATED ? '=' : ':',
qual->qual, range->max_qual.qual);
buffer += len;
buflen -= len;
}
/* Check if the statistics are in RCPI (IEEE 802.11k) */
if(qual->updated & IW_QUAL_RCPI)
{
/* Deal with signal level in RCPI */
/* RCPI = int{(Power in dBm +110)*2} for 0dbm > Power > -110dBm */
if(!(qual->updated & IW_QUAL_LEVEL_INVALID))
{
double rcpilevel = (qual->level / 2.0) - 110.0;
len = snprintf(buffer, buflen, "Signal level%c%g dBm ",
qual->updated & IW_QUAL_LEVEL_UPDATED ? '=' : ':',
rcpilevel);
buffer += len;
buflen -= len;
}
/* Deal with noise level in dBm (absolute power measurement) */
if(!(qual->updated & IW_QUAL_NOISE_INVALID))
{
double rcpinoise = (qual->noise / 2.0) - 110.0;
len = snprintf(buffer, buflen, "Noise level%c%g dBm",
qual->updated & IW_QUAL_NOISE_UPDATED ? '=' : ':',
rcpinoise);
}
}
else
{
/* Check if the statistics are in dBm */
if((qual->updated & IW_QUAL_DBM)
|| (qual->level > range->max_qual.level))
{
/* Deal with signal level in dBm (absolute power measurement) */
if(!(qual->updated & IW_QUAL_LEVEL_INVALID))
{
int dblevel = qual->level;
/* Implement a range for dBm [-192; 63] */
if(qual->level >= 64)
dblevel -= 0x100;
len = snprintf(buffer, buflen, "Signal level%c%d dBm ",
qual->updated & IW_QUAL_LEVEL_UPDATED ? '=' : ':',
dblevel);
buffer += len;
buflen -= len;
}
/* Deal with noise level in dBm (absolute power measurement) */
if(!(qual->updated & IW_QUAL_NOISE_INVALID))
{
int dbnoise = qual->noise;
/* Implement a range for dBm [-192; 63] */
if(qual->noise >= 64)
dbnoise -= 0x100;
len = snprintf(buffer, buflen, "Noise level%c%d dBm",
qual->updated & IW_QUAL_NOISE_UPDATED ? '=' : ':',
dbnoise);
}
}
else
{
/* Deal with signal level as relative value (0 -> max) */
if(!(qual->updated & IW_QUAL_LEVEL_INVALID))
{
len = snprintf(buffer, buflen, "Signal level%c%d/%d ",
qual->updated & IW_QUAL_LEVEL_UPDATED ? '=' : ':',
qual->level, range->max_qual.level);
buffer += len;
buflen -= len;
}
/* Deal with noise level as relative value (0 -> max) */
if(!(qual->updated & IW_QUAL_NOISE_INVALID))
{
len = snprintf(buffer, buflen, "Noise level%c%d/%d",
qual->updated & IW_QUAL_NOISE_UPDATED ? '=' : ':',
qual->noise, range->max_qual.noise);
}
}
}
}
else
{
/* We can't read the range, so we don't know... */
snprintf(buffer, buflen,
"Quality:%d Signal level:%d Noise level:%d",
qual->qual, qual->level, qual->noise);
}
}
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- iwlist.c (iwlist_aaa.c), copy it from wireless tools for linux
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int FLAG=0; //golbal value
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/*------------------------------------------------------------------*/
/*
* Parse, and display the results of a WPA or WPA2 IE.
*
*/
static inline void
iw_print_ie_wpa(unsigned char * iebuf,
int buflen)
{
int ielen = iebuf[1] + 2;
int offset = 2; /* Skip the IE id, and the length. */
unsigned char wpa1_oui[3] = {0x00, 0x50, 0xf2};
unsigned char wpa2_oui[3] = {0x00, 0x0f, 0xac};
unsigned char * wpa_oui;
int i;
uint16_t ver = 0;
uint16_t cnt = 0;
if(ielen > buflen)
ielen = buflen;
#ifdef DEBUG
/* Debugging code. In theory useless, because it's debugged ;-) */
printf("IE raw value %d [%02X", buflen, iebuf[0]);
for(i = 1; i < buflen; i++)
printf(":%02X", iebuf[i]);
printf("]\n");
#endif
switch(iebuf[0])
{
case 0x30: /* WPA2 */
/* Check if we have enough data */
if(ielen < 4)
{
//iw_print_ie_unknown(iebuf, buflen); //LN2 co
return;
}
wpa_oui = wpa2_oui;
break;
case 0xdd: /* WPA or else */
wpa_oui = wpa1_oui;
/* Not all IEs that start with 0xdd are WPA.
* So check that the OUI is valid. Note : offset==2 */
if((ielen < 8)
|| (memcmp(&iebuf[offset], wpa_oui, 3) != 0)
|| (iebuf[offset + 3] != 0x01))
{
//iw_print_ie_unknown(iebuf, buflen); //LN2 co
return;
}
/* Skip the OUI type */
offset += 4;
break;
default:
return;
}
/* Pick version number (little endian) */
ver = iebuf[offset] | (iebuf[offset + 1] << 8);
offset += 2;
if(iebuf[0] == 0xdd)
{
printf(" IE: "); //LN2
//printf("WPA Version %d\n", ver); //LN2 co
printf("WPAver%d\n", ver);
}
if(iebuf[0] == 0x30)
{
printf(" IE: "); //LN2
//printf("IEEE 802.11i/WPA2 Version %d\n", ver); //LN2 co
printf("WPA2ver%d\n", ver);
}
/* From here, everything is technically optional. */
/* Check if we are done */
if(ielen < (offset + 4))
{
/* We have a short IE. So we should assume TKIP/TKIP. */
printf(" Group Cipher : TKIP\n");
printf(" Pairwise Cipher : TKIP\n");
return;
}
/* Next we have our group cipher. */
if(memcmp(&iebuf[offset], wpa_oui, 3) != 0)
{
printf(" Group Cipher : Proprietary\n");
}
else
{
printf(" Group Cipher :");
iw_print_value_name(iebuf[offset+3],
iw_ie_cypher_name, IW_IE_CYPHER_NUM);
printf("\n");
}
offset += 4;
/* Check if we are done */
if(ielen < (offset + 2))
{
/* We don't have a pairwise cipher, or auth method. Assume TKIP. */
printf(" Pairwise Ciphers : TKIP\n");
return;
}
/* Otherwise, we have some number of pairwise ciphers. */
cnt = iebuf[offset] | (iebuf[offset + 1] << 8);
offset += 2;
printf(" Pairwise Ciphers (%d) :", cnt);
if(ielen < (offset + 4*cnt))
return;
for(i = 0; i < cnt; i++)
{
if(memcmp(&iebuf[offset], wpa_oui, 3) != 0)
{
printf(" Proprietary");
}
else
{
iw_print_value_name(iebuf[offset+3],
iw_ie_cypher_name, IW_IE_CYPHER_NUM);
}
offset+=4;
}
printf("\n");
/* Check if we are done */
if(ielen < (offset + 2))
return;
/* Now, we have authentication suites. */
cnt = iebuf[offset] | (iebuf[offset + 1] << 8);
offset += 2;
printf(" Authentication Suites (%d) :", cnt);
if(ielen < (offset + 4*cnt))
return;
for(i = 0; i < cnt; i++)
{
if(memcmp(&iebuf[offset], wpa_oui, 3) != 0)
{
printf(" Proprietary");
}
else
{
iw_print_value_name(iebuf[offset+3],
iw_ie_key_mgmt_name, IW_IE_KEY_MGMT_NUM);
}
offset+=4;
}
printf("\n");
/* Check if we are done */
if(ielen < (offset + 1))
return;
/* Otherwise, we have capabilities bytes.
* For now, we only care about preauth which is in bit position 1 of the
* first byte. (But, preauth with WPA version 1 isn't supposed to be
* allowed.) 8-) */
if(iebuf[offset] & 0x01)
{
printf(" Preauthentication Supported\n");
}
}
/*------------------------------------------------------------------*/
/*
* Process a generic IE and display the info in human readable form
* for some of the most interesting ones.
* For now, we only decode the WPA IEs.
*/
static inline void
iw_print_gen_ie(unsigned char * buffer,
int buflen)
{
int offset = 0;
/* Loop on each IE, each IE is minimum 2 bytes */
while(offset <= (buflen - 2))
{
//printf(" IE: "); LN2 co
/* Check IE type */
switch(buffer[offset])
{
case 0xdd: /* WPA1 (and other) */
case 0x30: /* WPA2 */
iw_print_ie_wpa(buffer + offset, buflen);
break;
default:
;
//LN2 co
//iw_print_ie_unknown(buffer + offset, buflen);
}
/* Skip over this IE to the next one in the list. */
offset += buffer[offset+1] + 2;
}
//printf("Finish\n"); //LN2
}
#endif /* WE_ESSENTIAL */
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/**
* buf = "Quality=17/100 Signal_level=-61 dBm"
*/
static inline char **ssplit (char *buf) //LN2
{
int i=0;
char *delim = " ";
char *pch;
char **ptr = (char **)malloc(sizeof(char*) * 4);
for (i = 0; i < 4; i++)
ptr[i] = (char *)malloc(sizeof(char *) * 128);
i=0;
pch = strtok(buf,delim);
while (pch != NULL)
{
strcpy(ptr[i], pch);
pch = strtok (NULL, delim);
++i;
}
return ptr;
}
...
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/*------------------------------------------------------------------*/
/*
* Print one element from the scanning results
*/
static inline void
print_scanning_token(struct stream_descr * stream, /* Stream of events */
struct iw_event * event, /* Extracted token */
struct iwscan_state * state,
struct iw_range * iw_range, /* Range info */
int has_range)
{
char buffer[128]; /* Temporary buffer */
char **split_buf;
/* Now, let's decode the event */
switch(event->cmd)
{
case SIOCGIWAP:
if (FLAG)
printf("Finish\n"); //LN2
printf(" Cell %02d - Address: %s\n", state->ap_num,
iw_saether_ntop(&event->u.ap_addr, buffer));
state->ap_num++;
break;
case SIOCGIWNWID:
if(event->u.nwid.disabled)
printf(" NWID:off/any\n");
else
printf(" NWID:%X\n", event->u.nwid.value);
break;
case SIOCGIWFREQ:
{
double freq; /* Frequency/channel */
int channel = -1; /* Converted to channel */
freq = iw_freq2float(&(event->u.freq));
/* Convert to channel if possible */
if(has_range)
channel = iw_freq_to_channel(freq, iw_range);
iw_print_freq(buffer, sizeof(buffer),
freq, channel, event->u.freq.flags);
printf(" %s\n", buffer);
}
break;
case SIOCGIWMODE:
/* Note : event->u.mode is unsigned, no need to check <= 0 */
if(event->u.mode >= IW_NUM_OPER_MODE)
event->u.mode = IW_NUM_OPER_MODE;
printf(" Mode:%s\n",
iw_operation_mode[event->u.mode]);
break;
case SIOCGIWNAME:
printf(" Protocol:%-1.16s\n", event->u.name);
break;
case SIOCGIWESSID:
{
char essid[IW_ESSID_MAX_SIZE+1];
memset(essid, '\0', sizeof(essid));
if((event->u.essid.pointer) && (event->u.essid.length))
memcpy(essid, event->u.essid.pointer, event->u.essid.length);
if(event->u.essid.flags)
{
/* Does it have an ESSID index ? */
if((event->u.essid.flags & IW_ENCODE_INDEX) > 1)
printf(" ESSID:\"%s\" [%d]\n", essid,
(event->u.essid.flags & IW_ENCODE_INDEX));
else
printf(" ESSID:\"%s\"\n", essid);
}
else
printf(" ESSID:off/any/hidden\n");
}
break;
case SIOCGIWENCODE:
{
unsigned char key[IW_ENCODING_TOKEN_MAX];
if(event->u.data.pointer)
memcpy(key, event->u.data.pointer, event->u.data.length);
else
event->u.data.flags |= IW_ENCODE_NOKEY;
printf(" Encryption key:");
if(event->u.data.flags & IW_ENCODE_DISABLED)
printf("off\n");
else
{
/* Display the key */
iw_print_key(buffer, sizeof(buffer), key, event->u.data.length,
event->u.data.flags);
printf("%s", buffer);
/* Other info... */
if((event->u.data.flags & IW_ENCODE_INDEX) > 1)
printf(" [%d]", event->u.data.flags & IW_ENCODE_INDEX);
if(event->u.data.flags & IW_ENCODE_RESTRICTED)
printf(" Security mode:restricted");
if(event->u.data.flags & IW_ENCODE_OPEN)
printf(" Security mode:open");
printf("\n");
}
}
break;
case SIOCGIWRATE:
if(state->val_index == 0)
printf(" Bit Rates:");
else
if((state->val_index % 5) == 0)
printf("\n ");
else
printf("; ");
iw_print_bitrate(buffer, sizeof(buffer), event->u.bitrate.value);
printf("%s", buffer);
/* Check for termination */
if(stream->value == NULL)
{
printf("\n");
state->val_index = 0;
}
else
state->val_index++;
break;
case SIOCGIWMODUL:
{
unsigned int modul = event->u.param.value;
int i;
int n = 0;
printf(" Modulations :");
for(i = 0; i < IW_SIZE_MODUL_LIST; i++)
{
if((modul & iw_modul_list[i].mask) == iw_modul_list[i].mask)
{
if((n++ % 8) == 7)
printf("\n ");
else
printf(" ; ");
printf("%s", iw_modul_list[i].cmd);
}
}
printf("\n");
}
break;
case IWEVQUAL:
iw_print_stats(buffer, sizeof(buffer),
&event->u.qual, iw_range, has_range);
//printf(" %s\n", buffer); //LN2 co
split_buf=ssplit(buffer);
printf(" %s\n", split_buf[0]); //LN2
printf(" %s\n", split_buf[1]);
free(split_buf[0]);
free(split_buf[1]);
free(split_buf[2]);
free(split_buf[3]);
free(split_buf);
break;
#ifndef WE_ESSENTIAL
case IWEVGENIE:
/* Informations Elements are complex, let's do only some of them */
iw_print_gen_ie(event->u.data.pointer, event->u.data.length);
break;
#endif /* WE_ESSENTIAL */
case IWEVCUSTOM:
{
char custom[IW_CUSTOM_MAX+1];
if((event->u.data.pointer) && (event->u.data.length))
memcpy(custom, event->u.data.pointer, event->u.data.length);
custom[event->u.data.length] = '\0';
printf(" Extra:%s\n", custom);
}
break;
default:
printf(" (Unknown Wireless Token 0x%04X)\n",
event->cmd);
} /* switch(event->cmd) */
}
- parse.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#define SSID_SIZE 32
#define SECU_SIZE 128
#define AUTH_SIZE 16
#define SSID_NUMS 128
//print flag
int P1SFLAG=0;
int P2FLAG=0;
int P2SFLAG=0;
typedef struct winfo
{
char ssid[SSID_SIZE];
int quality;
char secutity[SECU_SIZE];
char auth[AUTH_SIZE];
char key;
}winfo_t;
void print_list (winfo_t *wv, int ssflag);
void analysis (char *buf, winfo_t *wv, int *flag);
void wl_clear (winfo_t *wv);
int wifi_list (const char *cmd);
int fexists(const char* filename);
int record_ssid (char **buf, winfo_t *info);
/*******************
* This function will limit it display to only one SSID
*******************/
int record_ssid (char **buf, winfo_t *info)
{
static unsigned int i=0;
unsigned int j=0;
if ( strlen(*(buf)) == 0)
{
//printf("fisrt\n");
strcpy(*(buf), info->ssid);
++i;
}
else
{
for(j=0; j<i; j++)
{
if (strcmp(info->ssid, *(buf+j)) == 0) //repeat ssid
return 1;
}
strcpy(*(buf+i), info->ssid);
++i;
}
return 0;
}
void print_list (winfo_t *wv, int ssflag) //same_ssid_flag
{
if (!strcmp("\"\"", wv->ssid))
return;
if (ssflag)
return;
if (P1SFLAG)
{
if (wv->key == 0)
printf("%s, %d, %s, none\n", wv->ssid, wv->quality, wv->key?"ON":"OFF");
else
printf("%s, %d, %s, %s, %s\n", wv->ssid, wv->quality, wv->key?"ON":"OFF", wv->secutity, wv->auth);
}
else if (P2FLAG)
{
printf("%s\n", wv->ssid);
printf("%d\n", wv->quality);
printf("%s\n", wv->key?"ON":"OFF");
printf("---\n");
}
else if (P2SFLAG)
{
printf("%s\n", wv->ssid);
printf("%d\n", wv->quality);
printf("%s\n", wv->key?"ON":"OFF");
if (wv->key == 0)
printf("none\n");
else
{
printf("%s\n", wv->secutity);
printf("%s\n", wv->auth);
}
printf("---\n");
}
else //P1FLAG
printf("%s, %d, %s\n", wv->ssid, wv->quality, wv->key?"ON":"OFF");
return;
}
void analysis (char *buf, winfo_t *wv, int *flag)
{
char *pch;
char *delim;
char tmp[SSID_SIZE];
//printf("%s_buf=%s, len=%ld\n", __FUNCTION__, buf, strlen(buf));
//Quality
memset(tmp, '\0', sizeof(char)*SSID_SIZE);
pch=strstr(buf, "Quality");
if ( pch != NULL)
{
pch=strchr(pch, '=');
++pch;
strcpy(tmp, pch);
delim = "/";
pch = strtok(tmp, delim);
sscanf(pch, "%d", &wv -> quality);
pch = strtok (NULL, delim);
if(!strcmp("70", pch))
wv -> quality=abs(wv->quality*1.4);
return;
}
//Encryption Key
pch=strstr(buf, "Encryption");
if ( pch != NULL)
{
delim = ":";
pch = strtok(pch, delim);
pch = strtok (NULL, delim);
if(!strcmp("on", pch))
wv -> key=1;
else
wv -> key=0;
return;
}
//ESSID
pch=strstr(buf, "ESSID");
if ( pch != NULL)
{
delim = ":";
pch=strtok(pch, delim);
pch=strtok(NULL, delim);
if(strlen(pch)==2) //sometime, ESSID:""
{
strncpy(wv->ssid, "\"\"", 2);
return;
}
++pch;
if (strlen(pch) >= SSID_SIZE)
strncpy(wv->ssid, pch, sizeof(char)*SSID_SIZE);
else
strncpy(wv->ssid, pch, strlen(pch)-1);
return;
}
//MUST Protocol first
//IE (Protocol)
pch=strstr(buf, "Protocol");
if( pch != NULL)
{
return;
}
//IE (security)
pch=strstr(buf, "IE");
if ( pch != NULL)
{
delim = ":";
pch = strtok(pch, delim);
pch = strtok (NULL, delim);
++pch;
if(strlen(wv->secutity) == 0)
{
strncpy(wv->secutity, pch, sizeof(char)*SECU_SIZE);
}
else
{
strcat(wv->secutity, "|");
strncat(wv->secutity, pch, SECU_SIZE-strlen(wv->secutity)-1);
}
return;
}
pch=strstr(buf, "Authentication");
if( pch != NULL)
{
delim = ":";
pch = strtok(pch, delim);
pch = strtok (NULL, delim);
++pch;
if(strlen(wv->auth) == 0)
{
strncpy(wv->auth, pch, sizeof(char)*AUTH_SIZE);
}
#if 0 // if only show at late one of auth is not enough, open
else
{
strcat(wv->auth, "|");
strncat(wv->auth, pch, AUTH_SIZE-strlen(wv->auth)-1);
}
#endif
}
pch=strstr(buf, "Finish");
if ( pch != NULL)
{
*flag=1;
return;
}
return;
}
void wl_clear (winfo_t *wv)
{
wv->key=-1;
wv->quality=-1;
memset(wv->ssid, '\0', sizeof(char)*SSID_SIZE);
memset(wv->secutity, '\0', sizeof(char)*SECU_SIZE);
memset(wv->auth, '\0', sizeof(char)*AUTH_SIZE);
return;
}
int wifi_list (const char *cmd)
{
int i=0, j=0;
FILE *pp=NULL;
char buf[256];
int flag=0;
int ret=0;
char **ptr =(char **)malloc(sizeof(char*) * SSID_NUMS);
for (i = 0; i <SSID_NUMS; i++)
ptr[i] =(char *)malloc(sizeof(char *) * SSID_NUMS);
for (i = 0; i <SSID_NUMS; i++)
for(j=0; j< SSID_NUMS; j++)
ptr[i][j]=0;
winfo_t *pwvalue, wv;
pwvalue=&wv;
wl_clear(pwvalue);
pp=popen(cmd, "r");
while (fgets(buf, 255, pp) != NULL)
{
buf[strlen(buf)-1]='\0';
//printf("buf=%s", buf);
analysis(buf, pwvalue, &flag);
//printf("i=%d, flag=%d, buf=%s\n", i, flag, buf);
if ((i > 0 && flag))
{
ret=record_ssid(ptr, pwvalue);
print_list(pwvalue, ret);
wl_clear(pwvalue);
flag=0;
i=0;
}
++i;
}
if(flag==0) //if only one data; only one SSID info
{
ret=record_ssid(ptr, pwvalue);
print_list(pwvalue, ret);
}
for(j=0; j< SSID_NUMS; j++)
free(ptr[j]);
free(ptr);
pclose(pp);
return 0;
}
/*
* Check if a file exist using stat() function
* return 0 if the file exist otherwise return 1
*/
int fexists(const char* filename){
struct stat buffer;
int exist = stat(filename,&buffer);
if(exist == 0)
return 0;
else
return 1;
}
int main (int argc, char *argv[])
{
int i=0;
char wiface[8]={0};
char wcmd1[128]={0};
char *wcmd2="scanning | grep -e ESSID -e Quality -e Encryption -e IE -e Authentication -e Finish";
for(i=1; i<argc; i++)
{
if(argv[i] != NULL)
{
if ( !(strcmp(argv[i], "-i")) || !(strcmp(argv[i], "--interface")) )
{
if (argv[i+1] == NULL)
{
printf("enter an interface name, ex:wlan0\n");
return 1;
}
strcpy(wiface, argv[i+1]);
++i;
continue;
}
else if ( !(strcmp(argv[i], "-p1s")) )
P1SFLAG=1;
else if ( !(strcmp(argv[i], "-p2")) )
P2FLAG=1;
else if ( !(strcmp(argv[i], "-p2s")) )
P2SFLAG=1;
else if (!(strcmp(argv[i], "-h")) || !(strcmp(argv[i], "--help")) )
{
printf("Useage:\n");
printf(" -i or --interface, wifi interface, default:wlan0\n");
printf(" -p1s, , print security\n");
printf(" -p2, , \n");
printf(" -p2s, , print security\n");
printf(" -h or --help , help\n");
printf("[Note]: The number of SSIDs can't not more than 128\n");
return 0;
}
else
{
printf("???, argv[%d]=%s\n", i, argv[i]);
return 0;
}
}
}
//wifi_list("/home/ubuntu/Open_Source/wireless-tools/wireless-tools_modify/iwlist_era wlp3s0 scanning | grep -e ESSID -e Quality -e Encryption -e IE -e Finish");
//wifi_list("/home/ubuntu/Open_Source/wireless-tools/wireless-tools_modify/iwlist_era wlp3s0 scanning | grep -e ESSID -e Quality -e Encryption -e IE -e Authentication -e Finish");
if (fexists("/usr/local/sbin/iwlist_era"))
{
printf("iwlist_era, command_not_found\n");
return 1;
}
if (strlen(wiface) > 0)
{
strcpy(wcmd1, "iwlist_era ");
strcat(wcmd1, wiface);
strcat(wcmd1, " ");
strcat(wcmd1, wcmd2);
}
else
{
strcpy(wcmd1, "iwlist_era ");
strcat(wcmd1, "wlan0");
strcat(wcmd1, " ");
strcat(wcmd1, wcmd2);
}
wifi_list(wcmd1);
return 0;
}
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