Fix comments.

On success, pcap_offline_read() and the read_op routine return a value >
0 that is the number of packets read or captured, respectively.  Given
that, in the calls to them in pcap_next_ex(), we pass a maximum packet
count of 1, they will read or capture, respectively, at most one packet,
so, in those particular calls, they will return 1 on success.

1 files changed, 6 insertions, 2 deletions

diff --git a/pcap.c b/pcap.c
index c27492b3..6a8ed23e 100644
--- a/pcap.c
+++ b/pcap.c
@@ -622,7 +622,9 @@ pcap_next_ex(pcap_t *p, struct pcap_pkthdr **pkt_header,
 		 * Return codes for pcap_offline_read() are:
 		 *   -  0: EOF
 		 *   - -1: error
-		 *   - >1: OK
+		 *   - >0: OK - result is number of packets read, so
+		 *         it will be 1 in this case, as we've passed
+		 *         a maximum packet count of 1
 		 * The first one ('0') conflicts with the return code of
 		 * 0 from pcap_read() meaning "no packets arrived before
 		 * the timeout expired", so we map it to -2 so you can
@@ -641,7 +643,9 @@ pcap_next_ex(pcap_t *p, struct pcap_pkthdr **pkt_header,
 	 *   -  0: timeout
 	 *   - -1: error
 	 *   - -2: loop was broken out of with pcap_breakloop()
-	 *   - >1: OK
+	 *   - >0: OK, result is number of packets captured, so
+	 *         it will be 1 in this case, as we've passed
+	 *         a maximum packet count of 1
 	 * The first one ('0') conflicts with the return code of 0 from
 	 * pcap_offline_read() meaning "end of file".
 	*/