Set eth.fcs_len in the pseudo-header for Ethernet packets.
authorguy <guy@f5534014-38df-0310-8fa8-9805f1628bb7>
Thu, 1 Sep 2011 04:14:54 +0000 (04:14 +0000)
committerguy <guy@f5534014-38df-0310-8fa8-9805f1628bb7>
Thu, 1 Sep 2011 04:14:54 +0000 (04:14 +0000)
Set the pseudo-header when doing the sequential read as well as when
doing random reads.

When writing packets to a CommView file, use a slightly less contorted
way to get the year/month/day/hour/minute/second values.

commview_dump() uses the pseudo_header argument; don't mark it as
unused.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@38833 f5534014-38df-0310-8fa8-9805f1628bb7

wiretap/commview.c

index 2cd74a520a7a213382c802ded0551b25200aaef3..b45ba336f119addde44be1e5c69ad8e587d884ef 100644 (file)
@@ -88,10 +88,10 @@ static gboolean commview_seek_read(wtap *wth, gint64 seek_off,
                                   union wtap_pseudo_header *pseudo_header,
                                   guchar *pd, int length, int *err,
                                   gchar **err_info);
-static gboolean  commview_read_header(commview_header_t *cv_hdr, FILE_T fh,
-                                     int *err, gchar **err_info);
+static gboolean commview_read_header(commview_header_t *cv_hdr, FILE_T fh,
+                                    int *err, gchar **err_info);
 static gboolean commview_dump(wtap_dumper *wdh,        const struct wtap_pkthdr *phdr,
-                             const union wtap_pseudo_header *pseudo_header _U_,
+                             const union wtap_pseudo_header *pseudo_header,
                              const guchar *pd, int *err);
 
 int commview_open(wtap *wth, int *err, gchar **err_info)
@@ -132,6 +132,29 @@ int commview_open(wtap *wth, int *err, gchar **err_info)
        return 1; /* Our kind of file */
 }
 
+static void
+commview_set_pseudo_header(commview_header_t *cv_hdrp, union wtap_pseudo_header
+                          *pseudo_header)
+{
+       switch(cv_hdrp->flags & FLAGS_MEDIUM) {
+
+       case MEDIUM_ETHERNET :
+               pseudo_header->eth.fcs_len = -1; /* Unknown */
+               break;
+
+       case MEDIUM_WIFI :
+               pseudo_header->ieee_802_11.fcs_len = -1; /* Unknown */
+               pseudo_header->ieee_802_11.channel = cv_hdrp->channel;
+               pseudo_header->ieee_802_11.data_rate = cv_hdrp->rate;
+               pseudo_header->ieee_802_11.signal_level = cv_hdrp->signal_level_percent;
+               break;
+
+       default :
+               /* Token Ring or unknown - no pseudo-header for that */
+               break;
+       }
+}
+
 static gboolean
 commview_read(wtap *wth, int *err, gchar **err_info, gint64 *data_offset)
 {
@@ -159,13 +182,16 @@ commview_read(wtap *wth, int *err, gchar **err_info, gint64 *data_offset)
        case MEDIUM_TOKEN_RING :
                wth->phdr.pkt_encap = WTAP_ENCAP_TOKEN_RING;
                break;
-       default:
+
+       default :
                *err = WTAP_ERR_BAD_RECORD;
                *err_info = g_strdup_printf("commview: unsupported encap: %u",
                                            cv_hdr.flags & FLAGS_MEDIUM);
                return FALSE;
        }
 
+       commview_set_pseudo_header(&cv_hdr, &wth->pseudo_header);
+
        buffer_assure_space(wth->frame_buffer, cv_hdr.data_len);
        bytes_read = file_read(buffer_start_ptr(wth->frame_buffer),
                               cv_hdr.data_len, wth->fh);
@@ -219,13 +245,7 @@ commview_seek_read(wtap *wth, gint64 seek_off, union wtap_pseudo_header
                return FALSE;
        }
 
-       /* Pass some data to the 802.11 dissector if this is a WiFi packet */
-       if((cv_hdr.flags & FLAGS_MEDIUM) == MEDIUM_WIFI) {
-               pseudo_header->ieee_802_11.fcs_len = -1; /* Unknown */
-               pseudo_header->ieee_802_11.channel = cv_hdr.channel;
-               pseudo_header->ieee_802_11.data_rate = cv_hdr.rate;
-               pseudo_header->ieee_802_11.signal_level = cv_hdr.signal_level_percent;
-       }
+       commview_set_pseudo_header(&cv_hdr, pseudo_header);
 
        bytes_read = file_read(pd, cv_hdr.data_len, wth->random_fh);
        if(bytes_read != cv_hdr.data_len) {
@@ -310,7 +330,7 @@ static gboolean commview_dump(wtap_dumper *wdh,
                              const guchar *pd, int *err)
 {
        commview_header_t cv_hdr;
-       char date_time[5];
+       struct tm *tm;
 
        memset(&cv_hdr, 0, sizeof(cv_hdr));
 
@@ -318,24 +338,13 @@ static gboolean commview_dump(wtap_dumper *wdh,
        cv_hdr.source_data_len = GUINT16_TO_LE((guint16)phdr->caplen);
        cv_hdr.version = 0;
 
-       strftime(date_time, 5, "%Y", localtime(&phdr->ts.secs));
-       cv_hdr.year = GUINT16_TO_LE((guint16)strtol(date_time, NULL, 10));
-
-       strftime(date_time, 5, "%m", localtime(&phdr->ts.secs));
-       cv_hdr.month = (guint8)strtol(date_time, NULL, 10);
-
-       strftime(date_time, 5, "%d", localtime(&phdr->ts.secs));
-       cv_hdr.day = (guint8)strtol(date_time, NULL, 10);
-
-       strftime(date_time, 5, "%H", localtime(&phdr->ts.secs));
-       cv_hdr.hours = (guint8)strtol(date_time, NULL, 10);
-
-       strftime(date_time, 5, "%M", localtime(&phdr->ts.secs));
-       cv_hdr.minutes = (guint8)strtol(date_time, NULL, 10);
-
-       strftime(date_time, 5, "%S", localtime(&phdr->ts.secs));
-       cv_hdr.seconds = (guint8)strtol(date_time, NULL, 10);
-
+       tm = localtime(&phdr->ts.secs);
+       cv_hdr.year = tm->tm_year + 1900;
+       cv_hdr.month = tm->tm_mon + 1;
+       cv_hdr.day = tm->tm_mday;
+       cv_hdr.hours = tm->tm_hour;
+       cv_hdr.minutes = tm->tm_min;
+       cv_hdr.seconds = tm->tm_sec;
        cv_hdr.usecs = GUINT32_TO_LE(phdr->ts.nsecs / 1000);
 
        switch(phdr->pkt_encap) {