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嵌入式linux检测wifi密码错误的方法

2019-07-13 02:06发布

站内文章 / 嵌入式Linux
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1.wifi状态的检测使用下面的脚本 #!/bin/bash function poke {     while true     do         printf ' '         sleep 1     done } retryTimes=10 function watch {    (poke) | wpa_cli | while read -t 10 line     do         case "$line" in             *'4-Way Handshake failed'*)                 echo "incorrect key"                 return             ;;             *'CTRL-EVENT-CONNECTED'*)                 echo "connected"                 return             ;;             *'Could not connect to wpa_supplicant'*)                 echo "Could not connect to wpa_supplicant"                 return             ;;             *'Failed to initiate AP scan'*)                  echo "failed to init ap scan"                return                    ;;         esac     done } watch 2.应用程序中使用该脚本 char strout[MAX_PATH]; memset(strout, 0, MAX_PATH); FILE *fp = popen("/app/watch_wifi_connect_state.sh", "r"); if(fp != NULL) { if(!feof(fp)) { fgets(strout, sizeof(strout), fp); if(strstr(strout, "incorrect key")) { //密码错误 qDebug() << "密码错误"; emit passwordError(); } else if(strstr(strout, "connected")) { //连接成功 qDebug() << "连接成功"; system("kill -10 $(pidof udhcpc)"); } } } pclose(fp); system("kill $(pgrep -f /app/watch_wifi_connect_state.sh)");  

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