Fill in the presence flags in parse_cosine_rec_hdr(), so it's done at

the same point at which the rest of the wtap_pkthdr is filled in (so
it's done in seek-read routines).

parse_cosine_hex_dump()'s return value is used as the return value of
read routines, so it should be Boolean.  Make it so (and have it stuff
the actual length of packet data read into a wtap_pkthdr, which also
ensure that this is done in seek-read routines).

svn path=/trunk/; revision=49352

wiretap/cosine.c

@@ -175,8 +175,8 @@ static gboolean cosine_seek_read(wtap *wth, gint64 seek_off,
 	int len, int *err, gchar **err_info);
 static int parse_cosine_rec_hdr(struct wtap_pkthdr *phdr, const char *line,
 	int *err, gchar **err_info);
-static int parse_cosine_hex_dump(FILE_T fh, int pkt_len, guint8* buf,
-	int *err, gchar **err_info);
+static gboolean parse_cosine_hex_dump(FILE_T fh, struct wtap_pkthdr *phdr,
+	int pkt_len, guint8* buf, int *err, gchar **err_info);
 static int parse_single_hex_dump_line(char* rec, guint8 *buf,
 	guint byte_offset);
 
@@ -294,7 +294,7 @@ static gboolean cosine_read(wtap *wth, int *err, gchar **err_info,
 {
 	gint64	offset;
 	guint8	*buf;
-	int	pkt_len, caplen;
+	int	pkt_len;
 	char	line[COSINE_LINE_LENGTH];
 
 	/* Find the next packet */
@@ -312,21 +312,18 @@ static gboolean cosine_read(wtap *wth, int *err, gchar **err_info,
 	buf = buffer_start_ptr(wth->frame_buffer);
 
 	/* Convert the ASCII hex dump to binary data */
-	if ((caplen = parse_cosine_hex_dump(wth->fh, pkt_len, buf, err,
-	    err_info)) == -1)
+	if (!parse_cosine_hex_dump(wth->fh, &wth->phdr, pkt_len, buf, err,
+	    err_info))
 		return FALSE;
 
-	wth->phdr.presence_flags = WTAP_HAS_TS|WTAP_HAS_CAP_LEN;
-	wth->phdr.caplen = caplen;
 	*data_offset = offset;
 	return TRUE;
 }
 
 /* Used to read packets in random-access fashion */
 static gboolean
-cosine_seek_read (wtap *wth, gint64 seek_off,
-	struct wtap_pkthdr *phdr, guint8 *pd, int len,
-	int *err, gchar **err_info)
+cosine_seek_read (wtap *wth, gint64 seek_off, struct wtap_pkthdr *phdr,
+	guint8 *pd, int len, int *err, gchar **err_info)
 {
 	char	line[COSINE_LINE_LENGTH];
 
@@ -344,7 +341,7 @@ cosine_seek_read (wtap *wth, gint64 seek_off,
 	if (parse_cosine_rec_hdr(phdr, line, err, err_info) == -1)
 		return FALSE;
 
-	return parse_cosine_hex_dump(wth->random_fh, len, pd, err, err_info);
+	return parse_cosine_hex_dump(wth->random_fh, phdr, len, pd, err, err_info);
 }
 
 /* Parses a packet record header. There are two possible formats:
@@ -395,18 +392,18 @@ parse_cosine_rec_hdr(struct wtap_pkthdr *phdr, const char *line,
 		yy = mm = dd = hr = min = sec = csec = 0;
 	}
 
-	{
-		tm.tm_year = yy - 1900;
-		tm.tm_mon = mm - 1;
-		tm.tm_mday = dd;
-		tm.tm_hour = hr;
-		tm.tm_min = min;
-		tm.tm_sec = sec;
-		tm.tm_isdst = -1;
-		phdr->ts.secs = mktime(&tm);
-		phdr->ts.nsecs = csec * 10000000;
-		phdr->len = pkt_len;
-	}
+	phdr->presence_flags = WTAP_HAS_TS|WTAP_HAS_CAP_LEN;
+	tm.tm_year = yy - 1900;
+	tm.tm_mon = mm - 1;
+	tm.tm_mday = dd;
+	tm.tm_hour = hr;
+	tm.tm_min = min;
+	tm.tm_sec = sec;
+	tm.tm_isdst = -1;
+	phdr->ts.secs = mktime(&tm);
+	phdr->ts.nsecs = csec * 10000000;
+	phdr->len = pkt_len;
+
 	/* XXX need to handle other encapsulations like Cisco HDLC,
 	   Frame Relay and ATM */
 	if (strncmp(if_name, "TEST:", 5) == 0) {
@@ -444,11 +441,11 @@ parse_cosine_rec_hdr(struct wtap_pkthdr *phdr, const char *line,
 	return pkt_len;
 }
 
-/* Converts ASCII hex dump to binary data. Returns the capture length.
-   If any error is encountered, -1 is returned. */
-static int
-parse_cosine_hex_dump(FILE_T fh, int pkt_len, guint8* buf, int *err,
-    gchar **err_info)
+/* Converts ASCII hex dump to binary data. Returns TRUE on success,
+   FALSE iIf any error is encountered. */
+static gboolean
+parse_cosine_hex_dump(FILE_T fh, struct wtap_pkthdr *phdr, int pkt_len,
+    guint8* buf, int *err, gchar **err_info)
 {
 	gchar	line[COSINE_LINE_LENGTH];
 	int	i, hex_lines, n, caplen = 0;
@@ -463,19 +460,20 @@ parse_cosine_hex_dump(FILE_T fh, int pkt_len, guint8* buf, int *err,
 			if (*err == 0) {
 				*err = WTAP_ERR_SHORT_READ;
 			}
-			return -1;
+			return FALSE;
 		}
 		if (empty_line(line)) {
 			break;
 		}
 		if ((n = parse_single_hex_dump_line(line, buf, i*16)) == -1) {
 			*err = WTAP_ERR_BAD_FILE;
 			*err_info = g_strdup("cosine: hex dump line doesn't have 16 numbers");
-			return -1;
+			return FALSE;
 		}
 		caplen += n;
 	}
-	return caplen;
+	phdr->caplen = caplen;
+	return TRUE;
 }