1 #include <stdio.h>

     2 #include <stdlib.h>

     3 #include <math.h>

     4 

     5 #include <sys/types.h>

     6 #include <sys/stat.h>

     7 #include <fcntl.h>

     8 #include <assert.h>

     9 #include <limits.h>

    10 #include <unistd.h>

    11 #include <iwlib.h>

    12 

    13 char *eights[] = { "ø", "▁", "▂", "▃", "▄", "▅", "▆","▇", "█" };

    14 

    15 char *color_stop;

    16 char *color_red;

    17 char *color_orange;

    18 char *color_green;

    19 char *color_none;

    20 

    21 char *color(int low,int mid,int rev,int value) {

    22     if (value>mid) {

    23         return rev ? color_red : color_green;

    24     } else if (value>low) {

    25         return color_orange;

    26     }

    27     return rev ? color_green : color_red;

    28 }

    29 

    30 int main(int argc, char *argv[]) {

    31     assert(argc>1);

    32 

    33     int skfd;

    34     if((skfd = iw_sockets_open()) < 0) {

    35         perror("socket");

    36         exit(-1);

    37     }

    38 

    39     while (1) {

    40         if (argc>2 && !strcmp(argv[2],"term")) {

    41             color_stop = "\x1b[0m";

    42             color_red = "\x1b[1;31m";

    43             color_green = "\x1b[1;32m";

    44             color_orange = "\x1b[1;33m";

    45             color_none = color_stop;

    46         } else if (argc>2 && !strcmp(argv[2],"pango")) {

    47             color_stop = "</span>";

    48             color_red = "<span color='red'>";

    49             color_green = "<span color='green'>";

    50             color_orange = "<span color='orange'>";

    51             color_none = "<span>";

    52         } else {

    53             color_stop = color_red = color_green = color_orange = color_none = "";

    54         }

    55 

    56         iwstats stats;

    57         iwrange range;

    58         int down = 0;

    59         wireless_config info;

    60     

    61 

    62         if (iw_get_basic_config(skfd,argv[1],&info) < 0) {

    63             perror("iw_get_basic_config");

    64             exit(-2);

    65         }

    66 

    67         if (iw_get_range_info(skfd,argv[1],&range) < 0) {

    68             perror("iw_get_range_info");

    69             exit(-2);

    70         }

    71         if (iw_get_stats(skfd,argv[1],&stats,&range,1) < 0) {

    72             if (argc>2)

    73                 down = 1;

    74             else {

    75                 perror("iw_get_stats");

    76                 exit(-2);

    77             }

    78         }

    79         if (down) {

    80             if (!strcmp(info.essid,"")) {

    81                 printf("%sDOWN%s\n",color_orange,color_stop);

    82             } else {

    83                 printf("%s [%sXX/XX%s] XX\n",info.essid,color_red,color_stop);

    84             }

    85         } else {

    86             int ql = 100 * stats.qual.qual / range.max_qual.qual;

    87             char *qual_color = color(20,40,0,ql);

    88             if (stats.qual.qual<range.avg_qual.qual) qual_color = color_red;

    89 

    90             signed char dbm;

    91             dbm = (signed char)stats.qual.level;

    92 

    93             int perc;

    94             if (dbm>-35)

    95                 perc=100;

    96             else if(dbm<=-95)

    97                 perc = 1;

    98             else

    99             perc = (dbm+95)*100/60;

   100 

   101             printf("%s [%s%02d/%02d%s] ",info.essid,qual_color,stats.qual.qual,range.max_qual.qual,color_stop);

   102             printf("%s%hhd%s ",color(-83,-77,0,dbm),dbm,color_stop);

   103             printf("%s%d%%%s\n",color(20,40,0,perc),perc,color_stop);

   104         }

   105         fflush(stdout);

   106         sleep(UPDATE_PERIOD);

   107     }

   108     close(skfd);

   109 }