-static void warn_binary(const char *file)
-{
- BIO *bio;
- unsigned char linebuf[1024], *cur, *end;
- int len;
-
- if (file == NULL)
- return; /* cannot give a warning for stdin input */
- if ((bio = bio_open_default(file, 'r', FORMAT_BINARY)) == NULL)
- return; /* cannot give a proper warning since there is an error */
- while ((len = BIO_read(bio, linebuf, sizeof(linebuf))) > 0) {
- end = linebuf + len;
- for (cur = linebuf; cur < end; cur++) {
- if (*cur == '\0' || *cur >= 0x80) {
- BIO_printf(bio_err, "Warning: input file '%s' contains %s"
- " character; better use -binary option\n",
- file, *cur == '\0' ? "NUL" : "8-bit");
- goto end;
- }
- }
- }
- end:
- BIO_free(bio);
-}
-