mac_parser.c

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

typedef struct wifi{
    char *name;
    int rssi;
    char *mac;
} Wifi;

int main(int argc, char **argv){
    char * buffer = 0;
    long length;
    FILE * f = fopen ("/Users/bullhead/IdeaProjects/C/C/macs", "r");
    
    if (f){
        fseek (f, 0, SEEK_END);
        length = ftell (f);
        fseek (f, 0, SEEK_SET);
        buffer = malloc (length);
        if (buffer){
            fread (buffer, 1, length, f);
        }
        fclose (f);
    }else{
        printf("failed to read file.\n");
    }
    
    if(buffer){
        Wifi **wifis;
        char *line=strtok(buffer, "\n");
        int count=1;
        char **lines;
        //copy all the lines in lines array. later we can use strtok on each line
        while (line) {
            if (strcmp("AT+CWLAP", line)==0) {
                line=strtok(NULL, "\n");
            }else if(strcmp("OK", line)==0){
                break;
            }else{
                if(count==1){
                    lines=(char**)calloc(count, sizeof(char*));
                }else{
                    lines=realloc(lines, count*sizeof(char*));
                }
                lines[count-1]=(char *)calloc(strlen(line), sizeof(char));
                strcpy(lines[count-1], line);
                count++;
                line=strtok(NULL, "\n");
            }
        }
        
        wifis=(Wifi **)calloc(count-1, sizeof(Wifi *));
        for (int i=0; i<count-1; i++) {
            Wifi *wifi=(Wifi *)calloc(1, sizeof(Wifi));
            char *current_line=lines[i];
            strtok(current_line, ",");
            char *name=strtok(NULL, ",");
            wifi->name=(char *)calloc(strlen(name), sizeof(char));
            strcpy(wifi->name, name);
            wifi->rssi=atoi(strtok(NULL, ","));
            char *mac=strtok(NULL, ",");
            wifi->mac=(char *)calloc(strlen(mac), sizeof(char));
            strcpy(wifi->mac, mac);
            wifis[i]=wifi;
            free(current_line);
        }
        
        for (int i=0; i<count-1; i++) {
            Wifi *wifi=wifis[i];
            printf("[%s]-[%d]-[%s]\n",wifi->name,wifi->rssi,wifi->mac);
            free(wifi);
        }
        free(lines);
        free(wifis);
    }
}

macs

AT+CWLAP
+CWLAP:(0,"ESP_947938",-64,"6a:c6:3a:94:79:38",1,-12,0,0,0,3,0)
+CWLAP:(4,"SUNNY",-91,"be:2c:11:c5:87:2d",1,0,0,4,4,7,0)
+CWLAP:(3,"anisah",-91,"5c:6a:80:ec:75:1e",1,-16,0,4,4,7,0)
+CWLAP:(4,"ARGE-TEST2-2",-56,"bc:cf:4f:c9:71:60",5,-19,0,4,4,7,0)
+CWLAP:(4,"AtlantisNet-20855",-90,"d8:32:14:0a:21:90",1,-4,0,4,4,7,0)
+CWLAP:(4,"ARGE-TEST",-71,"bc:99:11:c5:83:21",9,-16,0,4,4,7,0)
+CWLAP:(3,"SUNNY-ARGE",-71,"be:21:11:c5:83:22",9,-16,0,4,4,7,0)
+CWLAP:(3,"akilli-mikrofon",-89,"bc:cf:4f:4b:27:c0",11,-21,0,5,3,7,0)
+CWLAP:(4,"mikrofon-misafir",-86,"be:c0:4f:4b:27:c1",11,-21,0,4,4,7,0)
+CWLAP:(0,"akillimikrofontv",-88,"be:c0:4f:4b:27:c2",11,-21,0,0,0,7,0)
+CWLAP:(3,"ATMACA",-87,"bc:99:11:c5:87:2c",1,0,0,4,4,7,0)
+CWLAP:(3,"SUNNY-OPERASYON",-80,"bc:99:11:c5:80:c4",13,-17,0,4,4,7,0)
+CWLAP:(3,"anisah-misafir",-87,"5e:1e:80:ec:75:1f",1,-16,0,4,4,7,0)
+CWLAP:(3,"SUNNY-PAZARLAMA",-88,"be:2c:11:c5:87:2e",1,1,0,4,4,7,0)

OK