* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#ifndef lint
-static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/util.c,v 1.98 2005-05-06 07:56:54 guy Exp $ (LBL)";
-#endif
-
+#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
-#include <pcap.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
ret = 0;
break;
}
- if (!isascii(c)) {
- c = toascii(c);
+ if (!ND_ISASCII(c)) {
+ c = ND_TOASCII(c);
putchar('M');
putchar('-');
}
- if (!isprint(c)) {
+ if (!ND_ISPRINT(c)) {
c ^= 0x40; /* DEL to ?, others to alpha */
putchar('^');
}
while (n > 0 && (ep == NULL || s < ep)) {
n--;
c = *s++;
- if (!isascii(c)) {
- c = toascii(c);
+ if (!ND_ISASCII(c)) {
+ c = ND_TOASCII(c);
putchar('M');
putchar('-');
}
- if (!isprint(c)) {
+ if (!ND_ISPRINT(c)) {
c ^= 0x40; /* DEL to ?, others to alpha */
putchar('^');
}
ret = 0;
break;
}
- if (!isascii(c)) {
- c = toascii(c);
+ if (!ND_ISASCII(c)) {
+ c = ND_TOASCII(c);
putchar('M');
putchar('-');
}
- if (!isprint(c)) {
+ if (!ND_ISPRINT(c)) {
c ^= 0x40; /* DEL to ?, others to alpha */
putchar('^');
}
putchar(c);
}
- return (n == 0) ? 0 : 1;
+ return (n == 0) ? 0 : ret;
+}
+
+/*
+ * Format the timestamp
+ */
+static char *
+ts_format(register int sec, register int usec)
+{
+ static char buf[sizeof("00:00:00.000000")];
+ (void)snprintf(buf, sizeof(buf), "%02d:%02d:%02d.%06u",
+ sec / 3600, (sec % 3600) / 60, sec % 60, usec);
+
+ return buf;
}
/*
* Print the timestamp
*/
void
-ts_print(register const struct timeval *tvp)
+ts_print(netdissect_options *ndo,
+ register const struct timeval *tvp)
{
register int s;
struct tm *tm;
time_t Time;
static unsigned b_sec;
static unsigned b_usec;
+ int d_usec;
+ int d_sec;
- switch (tflag) {
+ switch (ndo->ndo_tflag) {
case 0: /* Default */
s = (tvp->tv_sec + thiszone) % 86400;
- (void)printf("%02d:%02d:%02d.%06u ",
- s / 3600, (s % 3600) / 60, s % 60,
- (unsigned)tvp->tv_usec);
+ ND_PRINT((ndo, "%s ", ts_format(s, tvp->tv_usec)));
break;
case 1: /* No time stamp */
break;
case 2: /* Unix timeval style */
- (void)printf("%u.%06u ",
+ ND_PRINT((ndo, "%u.%06u ",
(unsigned)tvp->tv_sec,
- (unsigned)tvp->tv_usec);
+ (unsigned)tvp->tv_usec));
break;
case 3: /* Microseconds since previous packet */
+ case 5: /* Microseconds since first packet */
if (b_sec == 0) {
- printf("000000 ");
- } else {
- int d_usec = tvp->tv_usec - b_usec;
- int d_sec = tvp->tv_sec - b_sec;
-
- while (d_usec < 0) {
- d_usec += 1000000;
- d_sec--;
- }
- if (d_sec)
- printf("%d. ", d_sec);
- printf("%06d ", d_usec);
- }
- b_sec = tvp->tv_sec;
- b_usec = tvp->tv_usec;
+ /* init timestamp for first packet */
+ b_usec = tvp->tv_usec;
+ b_sec = tvp->tv_sec;
+ }
+
+ d_usec = tvp->tv_usec - b_usec;
+ d_sec = tvp->tv_sec - b_sec;
+
+ while (d_usec < 0) {
+ d_usec += 1000000;
+ d_sec--;
+ }
+
+ ND_PRINT((ndo, "%s ", ts_format(d_sec, d_usec)));
+
+ if (ndo->ndo_tflag == 3) { /* set timestamp for last packet */
+ b_sec = tvp->tv_sec;
+ b_usec = tvp->tv_usec;
+ }
break;
case 4: /* Default + Date*/
Time = (tvp->tv_sec + thiszone) - s;
tm = gmtime (&Time);
if (!tm)
- printf("Date fail ");
+ ND_PRINT((ndo, "Date fail "));
else
- printf("%04d-%02d-%02d ",
- tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday);
- printf("%02d:%02d:%02d.%06u ",
- s / 3600, (s % 3600) / 60, s % 60, (unsigned)tvp->tv_usec);
+ ND_PRINT((ndo, "%04d-%02d-%02d %s ",
+ tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
+ ts_format(s, tvp->tv_usec)));
break;
}
}
* is represented as 1y1w1d1h1m1s.
*/
void
-relts_print(int secs)
+relts_print(netdissect_options *ndo,
+ int secs)
{
static const char *lengths[] = {"y", "w", "d", "h", "m", "s"};
static const int seconds[] = {31536000, 604800, 86400, 3600, 60, 1};
const int *s = seconds;
if (secs == 0) {
- (void)printf("0s");
+ ND_PRINT((ndo, "0s"));
return;
}
if (secs < 0) {
- (void)printf("-");
+ ND_PRINT((ndo, "-"));
secs = -secs;
}
while (secs > 0) {
if (secs >= *s) {
- (void)printf("%d%s", secs / *s, *l);
+ ND_PRINT((ndo, "%d%s", secs / *s, *l));
secs -= (secs / *s) * *s;
}
s++;
*/
int
-print_unknown_data(const u_char *cp,const char *ident,int len)
+print_unknown_data(netdissect_options *ndo, const u_char *cp,const char *ident,int len)
{
- if (snapend - cp < len)
- len = snapend - cp;
- hex_print(ident,cp,len);
+ if (len < 0) {
+ ND_PRINT((ndo,"%sDissector error: print_unknown_data called with negative length",
+ ident));
+ return(0);
+ }
+ if (ndo->ndo_snapend - cp < len)
+ len = ndo->ndo_snapend - cp;
+ if (len < 0) {
+ ND_PRINT((ndo,"%sDissector error: print_unknown_data called with pointer past end of packet",
+ ident));
+ return(0);
+ }
+ hex_print(ndo, ident,cp,len);
return(1); /* everything is ok */
}
*/
const char *
tok2strbuf(register const struct tok *lp, register const char *fmt,
- register int v, char *buf, size_t bufsize)
+ register u_int v, char *buf, size_t bufsize)
{
if (lp != NULL) {
while (lp->s != NULL) {
/*
* 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 seperated
+ * if the s field is positive.
*/
-char *
-bittok2str(register const struct tok *lp, register const char *fmt,
- register int v)
+static char *
+bittok2str_internal(register const struct tok *lp, register const char *fmt,
+ register int v, register int sep)
{
static char buf[256]; /* our stringbuffer */
int buflen=0;
register int rotbit; /* this is the bit we rotate through all bitpositions */
register int tokval;
- while (lp->s != NULL && lp != NULL) {
+ while (lp != NULL && lp->s != NULL) {
tokval=lp->v; /* load our first value */
rotbit=1;
while (rotbit != 0) {
*/
if (tokval == (v&rotbit)) {
/* ok we have found something */
- buflen+=snprintf(buf+buflen, sizeof(buf)-buflen, "%s, ",lp->s);
+ buflen+=snprintf(buf+buflen, sizeof(buf)-buflen, "%s%s",
+ lp->s, sep ? ", " : "");
break;
}
rotbit=rotbit<<1; /* no match - lets shift and try again */
lp++;
}
+ /* user didn't want string seperation - no need to cut off trailing seperators */
+ if (!sep) {
+ return (buf);
+ }
+
if (buflen != 0) { /* did we find anything */
- /* yep, set the the trailing zero 2 bytes before to eliminate the last comma & whitespace */
+ /* yep, set the trailing zero 2 bytes before to eliminate the last comma & whitespace */
buf[buflen-2] = '\0';
return (buf);
}
}
}
+/*
+ * 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.
+ */
+char *
+bittok2str_nosep(register const struct tok *lp, register const char *fmt,
+ register int v)
+{
+ return (bittok2str_internal(lp, fmt, v, 0));
+}
+
+/*
+ * 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.
+ */
+char *
+bittok2str(register const struct tok *lp, register const char *fmt,
+ register int v)
+{
+ return (bittok2str_internal(lp, fmt, v, 1));
+}
+
/*
* Convert a value to a string using an array; the macro
* tok2strary() in <interface.h> is the public interface to
*/
int
-mask2plen (u_int32_t mask)
+mask2plen(u_int32_t mask)
{
u_int32_t bitmasks[33] = {
0x00000000,
return (prefix_len);
}
+#ifdef INET6
+int
+mask62plen(const u_char *mask)
+{
+ u_char bitmasks[9] = {
+ 0x00,
+ 0x80, 0xc0, 0xe0, 0xf0,
+ 0xf8, 0xfc, 0xfe, 0xff
+ };
+ int byte;
+ int cidr_len = 0;
+
+ for (byte = 0; byte < 16; byte++) {
+ u_int bits;
+
+ for (bits = 0; bits < (sizeof (bitmasks) / sizeof (bitmasks[0])); bits++) {
+ if (mask[byte] == bitmasks[bits]) {
+ cidr_len += bits;
+ break;
+ }
+ }
+
+ if (mask[byte] != 0xff)
+ break;
+ }
+ return (cidr_len);
+}
+#endif /* INET6 */
+
/* VARARGS */
void
error(const char *fmt, ...)
}
void
-safeputs(const char *s)
+safeputs(netdissect_options *ndo,
+ const u_char *s, const u_int maxlen)
{
- while (*s) {
- safeputchar(*s);
+ u_int idx = 0;
+
+ while (*s && idx < maxlen) {
+ safeputchar(ndo, *s);
+ idx++;
s++;
}
}
void
-safeputchar(int c)
+safeputchar(netdissect_options *ndo,
+ const u_char c)
+{
+ ND_PRINT((ndo, (c < 0x80 && ND_ISPRINT(c)) ? "%c" : "\\0x%02x", c));
+}
+
+#ifdef LBL_ALIGN
+/*
+ * Some compilers try to optimize memcpy(), using the alignment constraint
+ * on the argument pointer type. by using this function, we try to avoid the
+ * optimization.
+ */
+void
+unaligned_memcpy(void *p, const void *q, size_t l)
{
- unsigned char ch;
+ memcpy(p, q, l);
+}
- ch = (unsigned char)(c & 0xff);
- if (ch < 0x80 && isprint(ch))
- printf("%c", ch);
- else
- printf("\\%03o", ch);
+/* As with memcpy(), so with memcmp(). */
+int
+unaligned_memcmp(const void *p, const void *q, size_t l)
+{
+ return (memcmp(p, q, l));
}
+#endif
projects / tcpdump / blobdiff