Merge branch 'master' of git+ssh://bpf.tcpdump.org/tcpdump/master/git/tcpdump

[tcpdump] / util.c

diff --git a/util.c b/util.c
index 22e85f5d911d66542d192b24d65f6d3185f96834..5731ca7b376a95751d9e9448d65092429eef14d7 100644 (file)
--- a/util.c
+++ b/util.c
@@ -19,6 +19,7 @@
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
+#define NETDISSECT_REWORKED
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -27,7 +28,6 @@
 
 #include <sys/stat.h>
 
-#include <errno.h>
 #ifdef HAVE_FCNTL_H
 #include <fcntl.h>
 #endif
@@ -44,7 +44,8 @@
  * Return true if truncated.
  */
 int
-fn_print(register const u_char *s, register const u_char *ep)
+fn_print(netdissect_options *ndo,
+         register const u_char *s, register const u_char *ep)
 {
        register int ret;
        register u_char c;
@@ -58,14 +59,13 @@ fn_print(register const u_char *s, register const u_char *ep)
                }
                if (!ND_ISASCII(c)) {
                        c = ND_TOASCII(c);
-                       putchar('M');
-                       putchar('-');
+                       ND_PRINT((ndo, "M-"));
                }
                if (!ND_ISPRINT(c)) {
                        c ^= 0x40;      /* DEL to ?, others to alpha */
-                       putchar('^');
+                       ND_PRINT((ndo, "^"));
                }
-               putchar(c);
+               ND_PRINT((ndo, "%c", c));
        }
        return(ret);
 }
@@ -76,8 +76,8 @@ fn_print(register const u_char *s, register const u_char *ep)
  * Return true if truncated.
  */
 int
-fn_printn(register const u_char *s, register u_int n,
-         register const u_char *ep)
+fn_printn(netdissect_options *ndo,
+          register const u_char *s, register u_int n, register const u_char *ep)
 {
        register u_char c;
 
@@ -86,14 +86,13 @@ fn_printn(register const u_char *s, register u_int n,
                c = *s++;
                if (!ND_ISASCII(c)) {
                        c = ND_TOASCII(c);
-                       putchar('M');
-                       putchar('-');
+                       ND_PRINT((ndo, "M-"));
                }
                if (!ND_ISPRINT(c)) {
                        c ^= 0x40;      /* DEL to ?, others to alpha */
-                       putchar('^');
+                       ND_PRINT((ndo, "^"));
                }
-               putchar(c);
+               ND_PRINT((ndo, "%c", c));
        }
        return (n == 0) ? 0 : 1;
 }
@@ -104,8 +103,9 @@ fn_printn(register const u_char *s, register u_int n,
  * Return true if truncated.
  */
 int
-fn_printzp(register const u_char *s, register u_int n,
-         register const u_char *ep)
+fn_printzp(netdissect_options *ndo,
+           register const u_char *s, register u_int n,
+           register const u_char *ep)
 {
        register int ret;
        register u_char c;
@@ -120,14 +120,13 @@ fn_printzp(register const u_char *s, register u_int n,
                }
                if (!ND_ISASCII(c)) {
                        c = ND_TOASCII(c);
-                       putchar('M');
-                       putchar('-');
+                       ND_PRINT((ndo, "M-"));
                }
                if (!ND_ISPRINT(c)) {
                        c ^= 0x40;      /* DEL to ?, others to alpha */
-                       putchar('^');
+                       ND_PRINT((ndo, "^"));
                }
-               putchar(c);
+               ND_PRINT((ndo, "%c", c));
        }
        return (n == 0) ? 0 : ret;
 }
@@ -136,11 +135,32 @@ fn_printzp(register const u_char *s, register u_int n,
  * Format the timestamp
  */
 static char *
-ts_format(register int sec, register int usec)
+ts_format(netdissect_options *ndo, int sec, 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);
+       static char buf[sizeof("00:00:00.000000000")];
+       const char *format;
+
+#ifdef HAVE_PCAP_SET_TSTAMP_PRECISION
+       switch (ndo->ndo_tstamp_precision) {
+
+       case PCAP_TSTAMP_PRECISION_MICRO:
+               format = "%02d:%02d:%02d.%06u";
+               break;
+
+       case PCAP_TSTAMP_PRECISION_NANO:
+               format = "%02d:%02d:%02d.%09u";
+               break;
+
+       default:
+               format = "%02d:%02d:%02d.{unknown precision}";
+               break;
+       }
+#else
+       format = "%02d:%02d:%02d.%06u";
+#endif
+
+       snprintf(buf, sizeof(buf), format,
+                 sec / 3600, (sec % 3600) / 60, sec % 60, usec);
 
         return buf;
 }
@@ -164,7 +184,7 @@ ts_print(netdissect_options *ndo,
 
        case 0: /* Default */
                s = (tvp->tv_sec + thiszone) % 86400;
-               ND_PRINT((ndo, "%s ", ts_format(s, tvp->tv_usec)));
+               ND_PRINT((ndo, "%s ", ts_format(ndo, s, tvp->tv_usec)));
                break;
 
        case 1: /* No time stamp */
@@ -192,7 +212,7 @@ ts_print(netdissect_options *ndo,
                     d_sec--;
                 }
 
-                ND_PRINT((ndo, "%s ", ts_format(d_sec, d_usec)));
+                ND_PRINT((ndo, "%s ", ts_format(ndo, d_sec, d_usec)));
 
                 if (ndo->ndo_tflag == 3) { /* set timestamp for last packet */
                     b_sec = tvp->tv_sec;
@@ -209,7 +229,7 @@ ts_print(netdissect_options *ndo,
                else
                        ND_PRINT((ndo, "%04d-%02d-%02d %s ",
                                tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
-                               ts_format(s, tvp->tv_usec)));
+                               ts_format(ndo, s, tvp->tv_usec)));
                break;
        }
 }
@@ -321,6 +341,7 @@ bittok2str_internal(register const struct tok *lp, register const char *fmt,
         int buflen=0;
         register int rotbit; /* this is the bit we rotate through all bitpositions */
         register int tokval;
+        const char * sepstr = "";
 
        while (lp != NULL && lp->s != NULL) {
             tokval=lp->v;   /* load our first value */
@@ -333,7 +354,8 @@ bittok2str_internal(register const struct tok *lp, register const char *fmt,
                if (tokval == (v&rotbit)) {
                     /* ok we have found something */
                     buflen+=snprintf(buf+buflen, sizeof(buf)-buflen, "%s%s",
-                                     lp->s, sep ? ", " : "");
+                                     sepstr, lp->s);
+                    sepstr = sep ? ", " : "";
                     break;
                 }
                 rotbit=rotbit<<1; /* no match - lets shift and try again */
@@ -341,23 +363,10 @@ bittok2str_internal(register const struct tok *lp, register const char *fmt,
             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 trailing zero 2 bytes before to eliminate the last comma & whitespace */
-            buf[buflen-2] = '\0';
-            return (buf);
-        }
-        else {
+        if (buflen == 0)
             /* 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);
-        }
+            (void)snprintf(buf, sizeof(buf), fmt == NULL ? "#%d" : fmt, v);
+        return (buf);
 }
 
 /*
@@ -409,9 +418,9 @@ tok2strary_internal(register const char **lp, int n, register const char *fmt,
  */
 
 int
-mask2plen(u_int32_t mask)
+mask2plen(uint32_t mask)
 {
-       u_int32_t bitmasks[33] = {
+       uint32_t bitmasks[33] = {
                0x00000000,
                0x80000000, 0xc0000000, 0xe0000000, 0xf0000000,
                0xf8000000, 0xfc000000, 0xfe000000, 0xff000000,