stdin-to-stdout

#include <stdio.h>
int main(int argc, const char *argv[]) {
    char buffer[512], found = 0;
    for(int i=0;i<argc;i++)
        if (strcmp(argv[i], "-Wabc") == 0) { found = 1; break; }
    if (!found) return 1;
    while (!feof(stdin)) {
        int bytes = fread(buffer, sizeof(char), 512, stdin);
        fwrite(buffer, sizeof(char), bytes, stdout);
        fflush(stdout);
    }
    return 0;
}