static const u_char *
c_print(register const u_char *s, register const u_char *ep)
{
register u_char c;
register int flag;
flag = 1;
while (s < ep) {
c = *s++;
if (c == '\0') {
flag = 0;
break;
}
if (!ND_ISASCII(c)) {
c = ND_TOASCII(c);
putchar('M');
putchar('-');
}
if (!ND_ISPRINT(c)) {
c ^= 0x40; /* DEL to ?, others to alpha */
putchar('^');
}
putchar(c);
}
if (flag)
return NULL;
return (s);
}
static const u_char *
c_print(netdissect_options *ndo,
register const u_char *s, register const u_char *ep)
{
register u_char c;
register int flag;
flag = 1;
while (s < ep) {
c = *s++;
if (c == '\0') {
flag = 0;
break;
}
if (!ND_ISASCII(c)) {
c = ND_TOASCII(c);
ND_PRINT((ndo, "M-"));
}
if (!ND_ISPRINT(c)) {
c ^= 0x40; /* DEL to ?, others to alpha */
ND_PRINT((ndo, "^"));
}
ND_PRINT((ndo, "%c", c));
}
if (flag)
return NULL;
return (s);
}
/*
* Print out a null-terminated filename (or other ascii string).
* If ep is NULL, assume no truncation check is needed.
* Return true if truncated.
*/
int
fn_print(netdissect_options *ndo,
register const u_char *s, register const u_char *ep)
{
register int ret;
register u_char c;
ret = 1; /* assume truncated */
while (ep == NULL || s < ep) {
c = *s++;
if (c == '\0') {
ret = 0;
break;
}
if (!ND_ISASCII(c)) {
c = ND_TOASCII(c);
ND_PRINT((ndo, "M-"));
}
if (!ND_ISPRINT(c)) {
c ^= 0x40; /* DEL to ?, others to alpha */
ND_PRINT((ndo, "^"));
}
ND_PRINT((ndo, "%c", c));
}
return(ret);
}
/*
* Print out a character, filtering out the non-printable ones
*/
void
fn_print_char(netdissect_options *ndo, u_char c)
{
if (!ND_ISASCII(c)) {
c = ND_TOASCII(c);
ND_PRINT((ndo, "M-"));
}
if (!ND_ISPRINT(c)) {
c ^= 0x40; /* DEL to ?, others to alpha */
ND_PRINT((ndo, "^"));
}
ND_PRINT((ndo, "%c", c));
}
/*
* Print out a counted filename (or other ascii string).
* If ep is NULL, assume no truncation check is needed.
* Return true if truncated.
*/
int
fn_printn(netdissect_options *ndo,
register const u_char *s, register u_int n, register const u_char *ep)
{
register u_char c;
while (n > 0 && (ep == NULL || s < ep)) {
n--;
c = *s++;
if (!ND_ISASCII(c)) {
c = ND_TOASCII(c);
ND_PRINT((ndo, "M-"));
}
if (!ND_ISPRINT(c)) {
c ^= 0x40; /* DEL to ?, others to alpha */
ND_PRINT((ndo, "^"));
}
ND_PRINT((ndo, "%c", c));
}
return (n == 0) ? 0 : 1;
}