[Mimedefang] putc failed: Error 0 line 848

[David F. Skoll]

On Wed, 13 Nov 2002 Alberto.daSilva at rmb.co.za wrote:

> The problem is when *s = 0xff.
> putc returns -1 == EOF

Then Solaris is broken, or gcc 3.2 on Solaris is.

Casting an unsigned char of 0xFF to int should yield 255, not -1.

I've attached a test program.  With gcc 2.95.3 on Solaris 8, the
output is:

Ans = 255
Good... ans != EOF
Ans = -1
Good... ans == EOF

So my Solaris box doesn't seem to suffer from this bug.

And here's the test program:

#include <stdio.h>
#include <sys/types.h>
int
main()
{
    u_char s = 0xff;
    u_char *t = &s;
    FILE *nul = fopen("/dev/null", "w");
    int ans;

    ans = putc(*t, nul);
    printf("Ans = %d\n", ans);
    if (ans == EOF) {
        printf("WHOAH... ans == EOF\n");
    } else {
        printf("Good... ans != EOF\n");
    }

    /* This one had better fail */
    fclose(nul);
    ans = putc(*t, nul);
    printf("Ans = %d\n", ans);
    if (ans == EOF) {
        printf("Good... ans == EOF\n");
    } else {
        printf("WHOAH... ans != EOF\n");
    }

}

Regards,

David.