Re: [RFC] [PATCH] Use console, not stdin/stderr, for prompting

[Peter Samuelson]

[Peter Samuelson]
> I _am_ rather curious whether, on Windows, using "CON:" for prompting
> actually allows stdin to be usable for other things.  Like, when
> piping or redirecting to it.  I suppose I can try to test this
> feature using MingW32 + Wine

Hmmm, fopen("CON:", "r+") in mingw32 + Wine just returns a "no such
file or directory" error.  Not quite what I was hoping for.  I'm
attaching my test program, maybe someone can test it on Windows....

Peter

#include <stdio.h>
#include <stdlib.h>
#ifdef WIN32
#define TTY_DEVICE "con:"
#else
#define TTY_DEVICE "/dev/tty"
#endif

int main(void)
{
    FILE *fp;
    char buf[1024];

    fp = fopen(TTY_DEVICE, "r+");
    if (!fp) {
        perror("Cannot open console");
        exit(1);
    }
    fprintf(fp, "Prompt: ");
    fflush(fp);
    if (!fgets(buf, 1024, fp)) {
        perror("Cannot read from console");
        exit(1);
    }
    fprintf(fp, "Console input was: %s", buf);
    while (fgets(buf, 1024, stdin)) {
        fprintf(stdout, "stdin: %s", buf);
    }
    exit(0);
}