* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#ifndef lint
-static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/util.c,v 1.84 2003-03-04 08:53:26 guy Exp $ (LBL)";
-#endif
+/*
+ * txtproto_print() derived from original code by Hannes Gredler
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code
+ * distributions retain the above copyright notice and this paragraph
+ * in its entirety, and (2) distributions including binary code include
+ * the above copyright notice and this paragraph in its entirety in
+ * the documentation or other materials provided with the distribution.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
+ * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
+ * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE.
+ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
#include <sys/stat.h>
-#include <errno.h>
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
-#include <pcap.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include "interface.h"
-/*
- * Print out a filename (or other ascii string).
- * If ep is NULL, assume no truncation check is needed.
- * Return true if truncated.
- */
-int
-fn_print(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 (!isascii(c)) {
- c = toascii(c);
- putchar('M');
- putchar('-');
- }
- if (!isprint(c)) {
- c ^= 0x40; /* DEL to ?, others to alpha */
- putchar('^');
- }
- putchar(c);
- }
- return(ret);
-}
-
-/*
- * 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(register const u_char *s, register u_int n,
- register const u_char *ep)
-{
- register int ret;
- register u_char c;
-
- ret = 1; /* assume truncated */
- while (ep == NULL || s < ep) {
- if (n-- <= 0) {
- ret = 0;
- break;
- }
- c = *s++;
- if (!isascii(c)) {
- c = toascii(c);
- putchar('M');
- putchar('-');
- }
- if (!isprint(c)) {
- c ^= 0x40; /* DEL to ?, others to alpha */
- putchar('^');
- }
- putchar(c);
- }
- return(ret);
-}
-
-/*
- * Print the timestamp
- */
-void
-ts_print(register const struct timeval *tvp)
-{
- register int s;
- struct tm *tm;
- time_t Time;
- static unsigned b_sec;
- static unsigned b_usec;
-
- switch(tflag) {
- case 1: /* Default */
- s = (tvp->tv_sec + thiszone) % 86400;
- (void)printf("%02d:%02d:%02d.%06u ",
- s / 3600, (s % 3600) / 60, s % 60,
- (unsigned)tvp->tv_usec);
- break;
- case -1: /* Unix timeval style */
- (void)printf("%u.%06u ",
- (unsigned)tvp->tv_sec,
- (unsigned)tvp->tv_usec);
- break;
- case -2:
- 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;
- break;
- case -3: /* Default + Date*/
- s = (tvp->tv_sec + thiszone) % 86400;
- Time = (tvp->tv_sec + thiszone) - s;
- tm = gmtime (&Time);
- if (!tm)
- printf("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);
- break;
- }
-}
-
-/*
- * Print a relative number of seconds (e.g. hold time, prune timer)
- * in the form 5m1s. This does no truncation, so 32230861 seconds
- * is represented as 1y1w1d1h1m1s.
- */
-void
-relts_print(int secs)
-{
- static const char *lengths[] = {"y", "w", "d", "h", "m", "s"};
- static const int seconds[] = {31536000, 604800, 86400, 3600, 60, 1};
- const char **l = lengths;
- const int *s = seconds;
-
- if (secs == 0) {
- (void)printf("0s");
- return;
- }
- if (secs < 0) {
- (void)printf("-");
- secs = -secs;
- }
- while (secs > 0) {
- if (secs >= *s) {
- (void)printf("%d%s", secs / *s, *l);
- secs -= (secs / *s) * *s;
- }
- s++;
- l++;
- }
-}
-
-/*
- * this is a generic routine for printing unknown data;
- * we pass on the linefeed plus indentation string to
- * get a proper output - returns 0 on error
- */
-
-int
-print_unknown_data(const u_char *cp,const char *lf,int len)
-{
- int i;
-
- if (len ==0)
- return(0);
-
- printf("%s0x0000: ",lf);
- for(i=0;i<len;i++) {
- if (!TTEST2(*(cp+i), 1)) {
- printf("%spacket exceeded snapshot",lf);
- return(0);
- }
- printf("%02x",*(cp+i));
- if (i%2)
- printf(" ");
- if (i/16!=(i+1)/16) {
- if (i<(len-1))
- printf("%s0x%04x: ",lf,i);
- }
- }
- return(1); /* everything is ok */
-}
-
-/*
- * Convert a token value to a string; use "fmt" if not found.
- */
-const char *
-tok2str(register const struct tok *lp, register const char *fmt,
- register int v)
-{
- static char buf[128];
-
- while (lp->s != NULL) {
- if (lp->v == v)
- return (lp->s);
- ++lp;
- }
- if (fmt == NULL)
- fmt = "#%d";
- (void)snprintf(buf, sizeof(buf), fmt, v);
- 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 comma seperated
- */
-char *
-bittok2str(register const struct tok *lp, register const char *fmt,
- register int v)
-{
- 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) {
- tokval=lp->v; /* load our first value */
- rotbit=1;
- while (rotbit != 0) {
- /*
- * lets AND the rotating bit with our token value
- * and see if we have got a match
- */
- if (tokval == (v&rotbit)) {
- /* ok we have found something */
- buflen+=snprintf(buf+buflen, sizeof(buf)-buflen, "%s, ",lp->s);
- break;
- }
- rotbit=rotbit<<1; /* no match - lets shift and try again */
- }
- lp++;
- }
-
- if (buflen != 0) { /* did we find anything */
- /* yep, set the the trailing zero 2 bytes before to eliminate the last comma & whitespace */
- buf[buflen-2] = '\0';
- return (buf);
- }
- else {
- /* bummer - lets print the "unknown" message as advised in the fmt string if we got one */
- if (fmt == NULL)
- fmt = "#%d";
- (void)snprintf(buf, sizeof(buf), fmt, v);
- return (buf);
- }
-}
-
-/*
- * Convert a value to a string using an array; the macro
- * tok2strary() in <interface.h> is the public interface to
- * this function and ensures that the second argument is
- * correct for bounds-checking.
- */
-const char *
-tok2strary_internal(register const char **lp, int n, register const char *fmt,
- register int v)
-{
- static char buf[128];
-
- if (v >= 0 && v < n && lp[v] != NULL)
- return lp[v];
- if (fmt == NULL)
- fmt = "#%d";
- (void)snprintf(buf, sizeof(buf), fmt, v);
- return (buf);
-}
-
-/*
- * Convert a 32-bit netmask to prefixlen if possible
- * the function returns the prefix-len; if plen == -1
- * then conversion was not possible;
- */
-
-int
-mask2plen (u_int32_t mask)
-{
- u_int32_t bitmasks[33] = {
- 0x00000000,
- 0x80000000, 0xc0000000, 0xe0000000, 0xf0000000,
- 0xf8000000, 0xfc000000, 0xfe000000, 0xff000000,
- 0xff800000, 0xffc00000, 0xffe00000, 0xfff00000,
- 0xfff80000, 0xfffc0000, 0xfffe0000, 0xffff0000,
- 0xffff8000, 0xffffc000, 0xffffe000, 0xfffff000,
- 0xfffff800, 0xfffffc00, 0xfffffe00, 0xffffff00,
- 0xffffff80, 0xffffffc0, 0xffffffe0, 0xfffffff0,
- 0xfffffff8, 0xfffffffc, 0xfffffffe, 0xffffffff
- };
- int prefix_len = 33;
-
- /* lets see if we can transform the mask into a prefixlen */
- while (prefix_len >= 0) {
- if (bitmasks[prefix_len] == mask)
- break;
- prefix_len--;
- }
- return (prefix_len);
-}
-
/* VARARGS */
void
error(const char *fmt, ...)
cp[cc] = '\0';
return (cp);
}
-
-void
-safeputs(const char *s)
-{
- while (*s) {
- safeputchar(*s);
- s++;
- }
-}
-
-void
-safeputchar(int c)
-{
- unsigned char ch;
-
- ch = (unsigned char)(c & 0xff);
- if (ch < 0x80 && isprint(ch))
- printf("%c", ch);
- else
- printf("\\%03o", ch);
-}
projects / tcpdump / blobdiff