tickeParsing.c, C (gcc)

tickeParsing.c

//gcc 5.4.0

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

unsigned char command[5];
unsigned char commandSize=0;

void makeStream(char *dataStream)
{
    unsigned char line [50];
    
    scanf("%s", line);
    while(strcmp(line, "xxx") != 0){
        //printf("%s\n", line);
        strcat(dataStream, line);
        scanf("%s", line);
    }
    printf("%s\n", dataStream);
}

void receiveChar(unsigned char dataByte){
    //if we are receiving just command bytes
    if( commandSize > 0 ){
        if( command[0] == 0x1b ){
            if( dataByte = 0x21 ){
                commandSize ++;
                command[0]=0;
            }
        }
        commandSize --;
    }
    else{
        if( dataByte == 0x1b ){
            commandSize = 1;
            command[0] = 0x1b;
        }
        else{
            if( dataByte == 0x1d){
                commandSize = 2;
            }
            else
                if( dataByte > 9 && dataByte < 125 )
                    printf("%c", dataByte);
                else
                    printf("%x", dataByte);
        }
         
    } 
}

unsigned char atohex(unsigned char asciiByte){
    if( (asciiByte >= '0') && ( asciiByte <= '9') )
        asciiByte -= 0x30;
    else{
        if( (asciiByte >= 'A') && ( asciiByte <= 'F') )
        asciiByte -= 0x37;
    }
    return asciiByte;
}

void sendDataStream(unsigned char *rawData){
    unsigned char highByte, lowByte, dataByte;
    
    while( *rawData != '\0' ){
        highByte = *rawData;
        rawData++;
        lowByte = *rawData;
       
        dataByte = (atohex(highByte) << 4) | (atohex(lowByte));
        receiveChar(dataByte);
        rawData++;
    }
}

int main(void)
{
    //unsigned char *dataFile;
    unsigned char dataStream[14000];
    
    //printf("Hello, world!\n");
    makeStream(dataStream);
    sendDataStream(dataStream);
    
    return 0;
}


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