/* invalid string to print '(invalid)' for malformed or corrupted packets */
const char istr[] = " (invalid)";
-/*
- * timestamp display buffer size, the biggest size of both formats is needed
- * sizeof("0000000000.000000000") > sizeof("00:00:00.000000000")
- */
-#define TS_BUF_SIZE sizeof("0000000000.000000000")
-
#define TOKBUFSIZE 128
/*
}
/*
- * Print out a null-terminated filename (or other ASCII string).
+ * Print a null-terminated string, filtering out non-printable characters.
+ * DON'T USE IT with a pointer on the packet buffer because there is no
+ * truncation check. For this use, see the nd_printX() functions below.
+ */
+void
+fn_print_str(netdissect_options *ndo, const u_char *s)
+{
+ while (*s != '\0') {
+ fn_print_char(ndo, *s);
+ s++;
+ }
+}
+
+/*
+ * Print out a null-terminated filename (or other ASCII string), part of
+ * the packet buffer.
* If ep is NULL, assume no truncation check is needed.
* Return true if truncated.
* Stop at ep (if given) or before the null char, whichever is first.
*/
int
-fn_print(netdissect_options *ndo,
+nd_print(netdissect_options *ndo,
const u_char *s, const u_char *ep)
{
int ret;
ret = 0;
break;
}
- if (!ND_ISASCII(c)) {
- c = ND_TOASCII(c);
- ND_PRINT("M-");
- }
- if (!ND_ISPRINT(c)) {
- c ^= 0x40; /* DEL to ?, others to alpha */
- ND_PRINT("^");
- }
- ND_PRINT("%c", c);
+ fn_print_char(ndo, c);
}
return(ret);
}
/*
* Print out a null-terminated filename (or other ASCII string) from
- * a fixed-length buffer.
- * If ep is NULL, assume no truncation check is needed.
+ * a fixed-length field in the packet buffer, or from what remains of
+ * the packet.
+ *
+ * n is the length of the fixed-length field, or the number of bytes
+ * remaining in the packet based on its on-the-network length.
+ *
+ * If ep is non-null, it should point just past the last captured byte
+ * of the packet, e.g. ndo->ndo_snapend. If ep is NULL, we assume no
+ * truncation check, other than the checks of the field length/remaining
+ * packet data length, is needed.
+ *
* Return the number of bytes of string processed, including the
- * terminating null, if not truncated. Return 0 if truncated.
+ * terminating null, if not truncated; as the terminating null is
+ * included in the count, and as there must be a terminating null,
+ * this will always be non-zero. Return 0 if truncated.
*/
u_int
-fn_printztn(netdissect_options *ndo,
+nd_printztn(netdissect_options *ndo,
const u_char *s, u_int n, const u_char *ep)
{
u_int bytes;
if (n == 0 || (ep != NULL && s >= ep)) {
/*
* Truncated. This includes "no null before we
- * got to the end of the fixed-length buffer".
+ * got to the end of the fixed-length buffer or
+ * the end of the packet".
*
* XXX - BOOTP says "null-terminated", which
* means the maximum length of the string, in
/* End of string */
break;
}
- if (!ND_ISASCII(c)) {
- c = ND_TOASCII(c);
- ND_PRINT("M-");
- }
- if (!ND_ISPRINT(c)) {
- c ^= 0x40; /* DEL to ?, others to alpha */
- ND_PRINT("^");
- }
- ND_PRINT("%c", c);
+ fn_print_char(ndo, c);
}
return(bytes);
}
/*
- * Print out a counted filename (or other ASCII string).
+ * Print out a counted filename (or other ASCII string), part of
+ * the packet buffer.
* If ep is NULL, assume no truncation check is needed.
* Return true if truncated.
* Stop at ep (if given) or after n bytes, whichever is first.
*/
int
-fn_printn(netdissect_options *ndo,
+nd_printn(netdissect_options *ndo,
const u_char *s, u_int n, const u_char *ep)
{
u_char c;
n--;
c = EXTRACT_U_1(s);
s++;
- if (!ND_ISASCII(c)) {
- c = ND_TOASCII(c);
- ND_PRINT("M-");
- }
- if (!ND_ISPRINT(c)) {
- c ^= 0x40; /* DEL to ?, others to alpha */
- ND_PRINT("^");
- }
- ND_PRINT("%c", c);
+ fn_print_char(ndo, c);
}
return (n == 0) ? 0 : 1;
}
/*
- * Print out a null-padded filename (or other ASCII string).
+ * Print out a null-padded filename (or other ASCII string), part of
+ * the packet buffer.
* If ep is NULL, assume no truncation check is needed.
* Return true if truncated.
* Stop at ep (if given) or after n bytes or before the null char,
* whichever is first.
*/
int
-fn_printzp(netdissect_options *ndo,
+nd_printzp(netdissect_options *ndo,
const u_char *s, u_int n,
const u_char *ep)
{
ret = 0;
break;
}
- if (!ND_ISASCII(c)) {
- c = ND_TOASCII(c);
- ND_PRINT("M-");
- }
- if (!ND_ISPRINT(c)) {
- c ^= 0x40; /* DEL to ?, others to alpha */
- ND_PRINT("^");
- }
- ND_PRINT("%c", c);
+ fn_print_char(ndo, c);
}
return (n == 0) ? 0 : ret;
}
/*
- * Format the timestamp
+ * Print the timestamp as HH:MM:SS.FRAC.
*/
-static char *
-ts_format(netdissect_options *ndo
-#ifndef HAVE_PCAP_SET_TSTAMP_PRECISION
-_U_
-#endif
-, int sec, int usec, char *buf)
+static void
+ts_hmsfrac_print(netdissect_options *ndo, int sec, int usec)
{
- const char *format;
-
#ifdef HAVE_PCAP_SET_TSTAMP_PRECISION
switch (ndo->ndo_tstamp_precision) {
case PCAP_TSTAMP_PRECISION_MICRO:
- format = "%02d:%02d:%02d.%06u";
+ ND_PRINT("%02d:%02d:%02d.%06u", sec / 3600, (sec % 3600) / 60,
+ sec % 60, usec);
break;
case PCAP_TSTAMP_PRECISION_NANO:
- format = "%02d:%02d:%02d.%09u";
+ ND_PRINT("%02d:%02d:%02d.%09u", sec / 3600, (sec % 3600) / 60,
+ sec % 60, usec);
break;
default:
- format = "%02d:%02d:%02d.{unknown}";
+ ND_PRINT("%02d:%02d:%02d.{unknown}", sec / 3600, (sec % 3600) / 60,
+ sec % 60);
break;
}
#else
- format = "%02d:%02d:%02d.%06u";
+ ND_PRINT("%02d:%02d:%02d.%06u", sec / 3600, (sec % 3600) / 60,
+ sec % 60, usec);
#endif
-
- nd_snprintf(buf, TS_BUF_SIZE, format,
- sec / 3600, (sec % 3600) / 60, sec % 60, usec);
-
- return buf;
}
/*
- * Format the timestamp - Unix timeval style
+ * Print the timestamp - Unix timeval style, as SECS.FRAC.
*/
-static char *
-ts_unix_format(netdissect_options *ndo
-#ifndef HAVE_PCAP_SET_TSTAMP_PRECISION
-_U_
-#endif
-, int sec, int usec, char *buf)
+static void
+ts_unix_print(netdissect_options *ndo, int sec, int usec)
{
- const char *format;
-
#ifdef HAVE_PCAP_SET_TSTAMP_PRECISION
switch (ndo->ndo_tstamp_precision) {
case PCAP_TSTAMP_PRECISION_MICRO:
- format = "%u.%06u";
+ ND_PRINT("%u.%06u", (unsigned)sec, (unsigned)usec);
break;
case PCAP_TSTAMP_PRECISION_NANO:
- format = "%u.%09u";
+ ND_PRINT("%u.%09u", (unsigned)sec, (unsigned)usec);
break;
default:
- format = "%u.{unknown}";
+ ND_PRINT("%u.{unknown}", (unsigned)sec);
break;
}
#else
- format = "%u.%06u";
+ ND_PRINT("%u.%06u", (unsigned)sec, (unsigned)usec);
#endif
-
- nd_snprintf(buf, TS_BUF_SIZE, format,
- (unsigned)sec, (unsigned)usec);
-
- return buf;
}
/*
int s;
struct tm *tm;
time_t Time;
- char buf[TS_BUF_SIZE];
static struct timeval tv_ref;
struct timeval tv_result;
int negative_offset;
case 0: /* Default */
s = (tvp->tv_sec + thiszone) % 86400;
- ND_PRINT("%s ", ts_format(ndo, s, tvp->tv_usec, buf));
+ ts_hmsfrac_print(ndo, s, tvp->tv_usec);
+ ND_PRINT(" ");
break;
case 1: /* No time stamp */
break;
case 2: /* Unix timeval style */
- ND_PRINT("%s ", ts_unix_format(ndo,
- tvp->tv_sec, tvp->tv_usec, buf));
+ ts_unix_print(ndo, tvp->tv_sec, tvp->tv_usec);
+ ND_PRINT(" ");
break;
case 3: /* Microseconds/nanoseconds since previous packet */
netdissect_timevalsub(tvp, &tv_ref, &tv_result, nano_prec);
ND_PRINT((negative_offset ? "-" : " "));
-
- ND_PRINT("%s ", ts_format(ndo,
- tv_result.tv_sec, tv_result.tv_usec, buf));
+ ts_hmsfrac_print(ndo, tv_result.tv_sec, tv_result.tv_usec);
+ ND_PRINT(" ");
if (ndo->ndo_tflag == 3)
tv_ref = *tvp; /* set timestamp for previous packet */
Time = (tvp->tv_sec + thiszone) - s;
tm = gmtime (&Time);
if (!tm)
- ND_PRINT("Date fail ");
- else
- ND_PRINT("%04d-%02d-%02d %s ",
- tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
- ts_format(ndo, s, tvp->tv_usec, buf));
+ ND_PRINT("Date fail ");
+ else {
+ ND_PRINT("%04d-%02d-%02d ",
+ tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday);
+ ts_hmsfrac_print(ndo, s, tvp->tv_usec);
+ ND_PRINT(" ");
+ }
break;
}
}
unsigned_relts_print(ndo, secs);
}
+/* Print the truncated string */
+void nd_print_trunc(netdissect_options *ndo)
+{
+ ND_PRINT(" [|%s]", ndo->ndo_protocol);
+}
+
/*
* this is a generic routine for printing unknown data;
* we pass on the linefeed plus indentation string to
/*
* Convert a bit token value to a string; use "fmt" if not found.
- * this is useful for parsing bitfields, the output strings are seperated
+ * this is useful for parsing bitfields, the output strings are separated
* if the s field is positive.
*/
static char *
/*
* Convert a bit token value to a string; use "fmt" if not found.
- * this is useful for parsing bitfields, the output strings are not seperated.
+ * this is useful for parsing bitfields, the output strings are not separated.
*/
char *
bittok2str_nosep(const struct tok *lp, const char *fmt,
/*
* Convert a bit token value to a string; use "fmt" if not found.
- * this is useful for parsing bitfields, the output strings are comma seperated.
+ * this is useful for parsing bitfields, the output strings are comma separated.
*/
char *
bittok2str(const struct tok *lp, const char *fmt,
/* ran past end of captured data */
return (0);
}
- if (!isascii(*(pptr + idx))) {
+ if (!isascii(EXTRACT_U_1(pptr + idx))) {
/* not an ASCII character */
return (0);
}
- if (isspace(*(pptr + idx))) {
+ if (isspace(EXTRACT_U_1(pptr + idx))) {
/* end of token */
break;
}
- if (!isprint(*(pptr + idx))) {
+ if (!isprint(EXTRACT_U_1(pptr + idx))) {
/* not part of a command token or response code */
return (0);
}
/* no room for this character and terminating '\0' */
return (0);
}
- tbuf[toklen] = *(pptr + idx);
+ tbuf[toklen] = EXTRACT_U_1(pptr + idx);
toklen++;
}
if (toklen == 0) {
/* ran past end of captured data */
break;
}
- if (*(pptr + idx) == '\r' || *(pptr + idx) == '\n') {
+ if (EXTRACT_U_1(pptr + idx) == '\r' || EXTRACT_U_1(pptr + idx) == '\n') {
/* end of line */
break;
}
- if (!isascii(*(pptr + idx)) || !isprint(*(pptr + idx))) {
+ if (!isascii(EXTRACT_U_1(pptr + idx)) || !isprint(EXTRACT_U_1(pptr + idx))) {
/* not a printable ASCII character */
break;
}
- if (!isspace(*(pptr + idx))) {
+ if (!isspace(EXTRACT_U_1(pptr + idx))) {
/* beginning of next token */
break;
}
startidx = idx;
while (idx < len) {
ND_TCHECK_1(pptr + idx);
- if (*(pptr+idx) == '\n') {
+ if (EXTRACT_U_1(pptr + idx) == '\n') {
/*
* LF without CR; end of line.
* Skip the LF and print the line, with the
linelen = idx - startidx;
idx++;
goto print;
- } else if (*(pptr+idx) == '\r') {
+ } else if (EXTRACT_U_1(pptr + idx) == '\r') {
/* CR - any LF? */
if ((idx+1) >= len) {
/* not in this packet */
return (0);
}
ND_TCHECK_1(pptr + idx + 1);
- if (*(pptr+idx+1) == '\n') {
+ if (EXTRACT_U_1(pptr + idx + 1) == '\n') {
/*
* CR-LF; end of line.
* Skip the CR-LF and print the line, with
* it.
*/
return (0);
- } else if (!isascii(*(pptr+idx)) ||
- (!isprint(*(pptr+idx)) && *(pptr+idx) != '\t')) {
+ } else if (!isascii(EXTRACT_U_1(pptr + idx)) ||
+ (!isprint(EXTRACT_U_1(pptr + idx)) &&
+ EXTRACT_U_1(pptr + idx) != '\t')) {
/*
* Not a printable ASCII character and not a tab;
* treat this as if it were binary data, and
}
}
-void
-safeputs(netdissect_options *ndo,
- const u_char *s, const u_int maxlen)
-{
- u_int idx = 0;
-
- while (idx < maxlen && EXTRACT_U_1(s)) {
- safeputchar(ndo, EXTRACT_U_1(s));
- idx++;
- s++;
- }
-}
-
-void
-safeputchar(netdissect_options *ndo,
- const u_char c)
-{
- ND_PRINT((c < 0x80 && ND_ISPRINT(c)) ? "%c" : "\\0x%02x", c);
-}
-
#if (defined(__i386__) || defined(_M_IX86) || defined(__X86__) || defined(__x86_64__) || defined(_M_X64)) || \
(defined(__arm__) || defined(_M_ARM) || defined(__aarch64__)) || \
(defined(__m68k__) && (!defined(__mc68000__) && !defined(__mc68010__))) || \
projects / tcpdump / blobdiff