Finding an Integer value in A binary file in C [closed]

In C, I first opened a binary file like this---

FILE *BINfile = fopen("./tmp.bin", "rb+");

Then I transferred the data into an unsigned char array (typedef as byte) like this---

(Side note; I'm an amateur so I'm more comfortable with arrays)

typedef unsigned char byte;
size_t GetFileSize (FILE *file) {
    fseek(file, 0, SEEK_END);
    size_t Size = ftell(file);
    rewind(file);
    return Size;
}

byte BinFileArray[GetFileSize(BINfile)];
size_t BinReadAmount = fread(BinFileArray, 1, GetFileSize(BINfile), BINfile);

Then I wrote a function to find an int value in that bin array by first converting the int to an byte array---

size_t BinaryOffsetFinder (byte Array[], size_t ReadAmount, size_t Target) {
    size_t index=0;
    byte charTarget[sizeof(Target)];
    byte buffer[sizeof(charTarget)];

    memcpy(charTarget, &Target, sizeof(Target));

    for (int i=0; i<ReadAmount; i++) {
        for (int j=0; j<sizeof(buffer); j++) {
            buffer[j]=Array[i+j];
        }

        if (buffer==charTarget) {
            index=i;
            break;
        }
    }
    return index;
}

Then I ran it like this---

printf("\n%d", BinaryOffsetFinder(BinFileArray, BinReadAmount, 5019));
//I know the file has 5019 in it cause I'm modding a binary game file. Verified using ImHex

And I'm pretty confident that a lot of stuff is really wrong. Not because I'm getting 0 every time, but I seriously lack concepts here. Someone please point out the conceptual errors.