X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/a6df5512cfdf7d7221d63d40d7329eaae6b93481..9d84f80c5f9b5b29399f3231eb16de7974a56f64:/util.c

diff --git a/util.c b/util.c
index 13d29974..6b723e54 100644
--- a/util.c
+++ b/util.c
@@ -21,7 +21,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/util.c,v 1.103 2005-12-13 08:37:23 hannes Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/tcpdump/util.c,v 1.109 2007-01-29 09:59:42 hannes Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -164,6 +164,8 @@ ts_print(register const struct timeval *tvp)
 	time_t Time;
 	static unsigned b_sec;
 	static unsigned b_usec;
+	int d_usec;
+	int d_sec;
 
 	switch (tflag) {
 
@@ -183,14 +185,14 @@ ts_print(register const struct timeval *tvp)
 
 	case 3: /* Microseconds since previous packet */
         case 5: /* Microseconds since first packet */
-		if (b_sec == 0 && tflag == 5) {
+		if (b_sec == 0) {
                         /* init timestamp for first packet */
                         b_usec = tvp->tv_usec;
                         b_sec = tvp->tv_sec;                        
                 }
 
-                int d_usec = tvp->tv_usec - b_usec;
-                int d_sec = tvp->tv_sec - b_sec;
+                d_usec = tvp->tv_usec - b_usec;
+                d_sec = tvp->tv_sec - b_sec;
                 
                 while (d_usec < 0) {
                     d_usec += 1000000;
@@ -314,11 +316,12 @@ tok2str(register const struct tok *lp, register 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 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;
@@ -335,7 +338,8 @@ bittok2str(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, ",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 */
@@ -343,6 +347,11 @@ bittok2str(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 the trailing zero 2 bytes before to eliminate the last comma & whitespace */
             buf[buflen-2] = '\0';
@@ -357,6 +366,28 @@ bittok2str(register const struct tok *lp, register 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 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
@@ -524,10 +555,13 @@ read_infile(char *fname)
 }
 
 void
-safeputs(const char *s)
+safeputs(const char *s, int maxlen)
 {
-	while (*s) {
+	int idx = 0;
+
+	while (*s && idx < maxlen) {
 		safeputchar(*s);
+                idx++;
 		s++;
 	}
 }
@@ -541,5 +575,5 @@ safeputchar(int c)
 	if (ch < 0x80 && isprint(ch))
 		printf("%c", ch);
 	else
-		printf("\\%03o", ch);
+		printf("\\0x%02x", ch);
 }