20 files changed, 137 insertions, 70 deletions
diff --git a/pcap.3pcap.in b/pcap.3pcap.in
index 397fa864..8736adff 100644
--- a/pcap.3pcap.in
+++ b/pcap.3pcap.in
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP 3PCAP "20 April 2018"
+.TH PCAP 3PCAP "25 July 2018"
 .SH NAME
 pcap \- Packet Capture library
 .SH SYNOPSIS
@@ -638,7 +638,9 @@ from the device.
 .PP
 Not all handles have such a descriptor available;
 .BR pcap_get_selectable_fd ()
-will return \-1 if no such descriptor is available.  If no such
+will return
+.B PCAP_ERROR
+if no such descriptor is available.  If no such
 descriptor is available, this may be because the device must be polled
 periodically for packets; in that case,
 .BR pcap_get_required_select_timeout ()
diff --git a/pcap_breakloop.3pcap b/pcap_breakloop.3pcap
index f3cb52e2..cc000d2e 100644
--- a/pcap_breakloop.3pcap
+++ b/pcap_breakloop.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_BREAKLOOP 3PCAP "8 November 2017"
+.TH PCAP_BREAKLOOP 3PCAP "25 July 2018"
 .SH NAME
 pcap_breakloop \- force a pcap_dispatch() or pcap_loop() call to return
 .SH SYNOPSIS
@@ -37,8 +37,9 @@ sets a flag that will force
 or
 .B pcap_loop(3PCAP)
 to return rather than looping; they will return the number of packets
-that have been processed so far, or \-2 if no packets have been
-processed so far.
+that have been processed so far, or
+.B PCAP_ERROR_BREAK
+if no packets have been processed so far.
 .PP
 This routine is safe to use inside a signal handler on UNIX or a console
 control handler on Windows, as it merely sets a flag that is checked
@@ -99,12 +100,16 @@ or
 .B pcap_loop()
 after it is called; at most one more packet might be processed.
 .PP
-If \-2 is returned from
+If
+.B PCAP_ERROR_BREAK
+is returned from
 .B pcap_dispatch()
 or
 .BR pcap_loop() ,
 the flag is cleared, so a subsequent call will resume reading packets.
 If a positive number is returned, the flag is not cleared, so a
-subsequent call will return \-2 and clear the flag.
+subsequent call will return
+.B PCAP_ERROR_BREAK
+and clear the flag.
 .SH SEE ALSO
 pcap(3PCAP)
diff --git a/pcap_compile.3pcap.in b/pcap_compile.3pcap.in
index bc38e9ec..31a64e6c 100644
--- a/pcap_compile.3pcap.in
+++ b/pcap_compile.3pcap.in
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_COMPILE 3PCAP "24 March 2017"
+.TH PCAP_COMPILE 3PCAP "25 July 2018"
 .SH NAME
 pcap_compile \- compile a filter expression
 .SH SYNOPSIS
@@ -67,8 +67,11 @@ in multiple threads in a single process without some form of mutual
 exclusion allowing only one thread to call it at any given time.
 .SH RETURN VALUE
 .B pcap_compile()
-returns 0 on success and \-1 on failure.
-If \-1 is returned,
+returns 0 on success and
+.B PCAP_ERROR
+on failure. If
+.B PCAP_ERROR
+is returned,
 .B pcap_geterr(3PCAP)
 or
 .B pcap_perror(3PCAP)
diff --git a/pcap_datalink_name_to_val.3pcap b/pcap_datalink_name_to_val.3pcap
index e6419f25..dd4688f0 100644
--- a/pcap_datalink_name_to_val.3pcap
+++ b/pcap_datalink_name_to_val.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_DATALINK_NAME_TO_VAL 3PCAP "12 October 2016"
+.TH PCAP_DATALINK_NAME_TO_VAL 3PCAP "25 July 2018"
 .SH NAME
 pcap_datalink_name_to_val \- get the link-layer header type value
 corresponding to a header type name
@@ -41,7 +41,9 @@ removed, to the corresponding link-layer header type value.  The
 translation is case-insensitive.
 .SH RETURN VALUE
 .B pcap_datalink_name_to_val()
-returns the type value on success and \-1 if the name is not a known
+returns the type value on success and
+.B PCAP_ERROR
+if the name is not a known
 type name..
 .SH SEE ALSO
 pcap(3PCAP)
diff --git a/pcap_dump_flush.3pcap b/pcap_dump_flush.3pcap
index a2bd1418..5d174745 100644
--- a/pcap_dump_flush.3pcap
+++ b/pcap_dump_flush.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_DUMP_FLUSH 3PCAP "3 January 2014"
+.TH PCAP_DUMP_FLUSH 3PCAP "25 July 2018"
 .SH NAME
 pcap_dump_flush \- flush to a savefile packets dumped
 .SH SYNOPSIS
@@ -38,6 +38,8 @@ written with
 but not yet written to the ``savefile'' will be written.
 .SH RETURN VALUE
 .B pcap_dump_flush()
-returns 0 on success and \-1 on failure.
+returns 0 on success and
+.B PCAP_ERROR
+on failure.
 .SH SEE ALSO
 pcap(3PCAP), pcap_dump_open(3PCAP)
diff --git a/pcap_dump_ftell.3pcap b/pcap_dump_ftell.3pcap
index a5af338f..20cb995e 100644
--- a/pcap_dump_ftell.3pcap
+++ b/pcap_dump_ftell.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_DUMP_FTELL 3PCAP "29 September 2017"
+.TH PCAP_DUMP_FTELL 3PCAP "25 July 2018"
 .SH NAME
 pcap_dump_ftell, pcap_dump_ftell64 \- get the current file offset for a savefile being written
 .SH SYNOPSIS
@@ -39,8 +39,8 @@ number of bytes written by
 .B pcap_dump_open(3PCAP)
 and
 .BR pcap_dump(3PCAP) .
-\-1 is returned on error.
-If the current file position does not fit in a
+.B PCAP_ERROR
+is returned on error. If the current file position does not fit in a
 .BR long ,
 it will be truncated; this can happen on 32-bit UNIX-like systems with
 large file support and on Windows.
@@ -52,6 +52,7 @@ so if file offsets that don't fit in a
 but that fit in a
 .B int64_t
 are supported, this will return the file offset without truncation.
-\-1 is returned on error.
+.B PCAP_ERROR
+is returned on error.
 .SH SEE ALSO
 pcap(3PCAP)
diff --git a/pcap_fileno.3pcap b/pcap_fileno.3pcap
index 03465188..60ac1294 100644
--- a/pcap_fileno.3pcap
+++ b/pcap_fileno.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_FILENO 3PCAP "7 April 2014"
+.TH PCAP_FILENO 3PCAP "25 July 2018"
 .SH NAME
 pcap_fileno \- get the file descriptor for a live capture
 .SH SYNOPSIS
@@ -59,6 +59,7 @@ that was created with
 .B pcap_create()
 but that has not yet been activated with
 .BR pcap_activate() ,
-it returns \-1.
+it returns
+.BR PCAP_ERROR .
 .SH SEE ALSO
 pcap(3PCAP)
diff --git a/pcap_findalldevs.3pcap b/pcap_findalldevs.3pcap
index e2bd12bb..dc52c2e8 100644
--- a/pcap_findalldevs.3pcap
+++ b/pcap_findalldevs.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_FINDALLDEVS 3PCAP "29 April 2018"
+.TH PCAP_FINDALLDEVS 3PCAP "25 July 2018"
 .SH NAME
 pcap_findalldevs, pcap_freealldevs \- get a list of capture devices, and
 free that list
@@ -199,10 +199,13 @@ which frees the list pointed to by
 .IR alldevs .
 .SH RETURN VALUE
 .B pcap_findalldevs()
-returns 0 on success and \-1 on failure; as indicated, finding no
+returns 0 on success and
+.B PCAP_ERROR
+on failure; as indicated, finding no
 devices is considered success, rather than failure, so 0 will be
-returned in that case.
-If \-1 is returned,
+returned in that case. If
+.B PCAP_ERROR
+is returned,
 .I errbuf
 is filled in with an appropriate error message.
 .I errbuf
diff --git a/pcap_get_required_select_timeout.3pcap b/pcap_get_required_select_timeout.3pcap
index ecae7a5c..bc0ab779 100644
--- a/pcap_get_required_select_timeout.3pcap
+++ b/pcap_get_required_select_timeout.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_GET_REQUIRED_SELECT_TIMEOUT 3PCAP "20 January 2018"
+.TH PCAP_GET_REQUIRED_SELECT_TIMEOUT 3PCAP "25 July 2018"
 .SH NAME
 pcap_get_required_select_timeout \- get a file descriptor on which a
 select() can be done for a live capture
@@ -43,7 +43,8 @@ and
 .B kevent()
 calls if
 .B pcap_get_selectable_fd(3PCAP)
-returns \-1.
+returns
+.BR PCAP_ERROR .
 .PP
 The timeout that should be used in those calls must be no larger than
 the smallest of all timeouts returned by
@@ -52,7 +53,9 @@ for devices from which packets will be captured.
 .PP
 The device for which
 .B pcap_get_selectable_fd()
-returned \-1 must be put in non-blocking mode with
+returned
+.B PCAP_ERROR
+must be put in non-blocking mode with
 .BR pcap_setnonblock(3PCAP) ,
 and an attempt must always be made to read packets from the device
 when the
diff --git a/pcap_get_selectable_fd.3pcap b/pcap_get_selectable_fd.3pcap
index c7b31607..7f43db39 100644
--- a/pcap_get_selectable_fd.3pcap
+++ b/pcap_get_selectable_fd.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_GET_SELECTABLE_FD 3PCAP "20 January 2018"
+.TH PCAP_GET_SELECTABLE_FD 3PCAP "25 July 2018"
 .SH NAME
 pcap_get_selectable_fd \- get a file descriptor on which a select() can
 be done for a live capture
@@ -42,7 +42,9 @@ do a
 .BR kevent() ,
 or other such call
 to wait for it to be possible to read packets without blocking, if such
-a descriptor exists, or \-1, if no such descriptor exists.
+a descriptor exists, or
+.BR PCAP_ERROR ,
+if no such descriptor exists.
 .PP
 Some network devices opened with
 .B pcap_create(3PCAP)
@@ -51,17 +53,21 @@ and
 or with
 .BR pcap_open_live(3PCAP) ,
 do not support those calls (for example, regular network devices on
-FreeBSD 4.3 and 4.4, and Endace DAG devices), so \-1 is returned for
+FreeBSD 4.3 and 4.4, and Endace DAG devices), so
+.B PCAP_ERROR
+is returned for
 those devices.  In that case, those calls must be given a timeout less
 than or equal to the timeout returned by
 .B pcap_get_required_select_timeout(3PCAP)
 for the device for which
 .B pcap_get_selectable_fd()
-returned \-1, the device must be put in non-blocking mode with a call to
-.BR pcap_setnonblock(3PCAP) ,
+returned
+.BR PCAP_ERROR ,
+the device must be put in non-blocking mode with a call to
+.BR \%pcap_setnonblock(3PCAP) ,
 and an attempt must always be made to read packets from the device
 when the call returns.  If
-.B pcap_get_required_select_timeout()
+.B \%pcap_get_required_select_timeout()
 returns
 .BR NULL ,
 it is not possible to wait for packets to arrive on the device in an
@@ -138,7 +144,8 @@ work on that descriptor in Mac OS X 10.6 and later.
 .B pcap_get_selectable_fd()
 is not available on Windows.
 .SH RETURN VALUE
-A selectable file descriptor is returned if one exists; otherwise, \-1
+A selectable file descriptor is returned if one exists; otherwise,
+.B PCAP_ERROR
 is returned.
 .SH SEE ALSO
 pcap(3PCAP), kqueue(2)
diff --git a/pcap_inject.3pcap b/pcap_inject.3pcap
index 821f4211..92a92638 100644
--- a/pcap_inject.3pcap
+++ b/pcap_inject.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_INJECT 3PCAP "3 January 2014"
+.TH PCAP_INJECT 3PCAP "25 July 2018"
 .SH NAME
 pcap_inject, pcap_sendpacket \- transmit a packet
 .SH SYNOPSIS
@@ -72,12 +72,18 @@ comes from OpenBSD;
 comes from WinPcap.  Both are provided for compatibility.)
 .SH RETURN VALUE
 .B pcap_inject()
-returns the number of bytes written on success and \-1 on failure.
+returns the number of bytes written on success and
+.B PCAP_ERROR
+on failure.
 .PP
 .B pcap_sendpacket()
-returns 0 on success and \-1 on failure.
+returns 0 on success and
+.B PCAP_ERROR
+on failure.
 .PP
-If \-1 is returned,
+If
+.B PCAP_ERROR
+is returned,
 .B pcap_geterr(3PCAP)
 or
 .B pcap_perror(3PCAP)
diff --git a/pcap_list_datalinks.3pcap.in b/pcap_list_datalinks.3pcap.in
index d0c5afd1..60ba478f 100644
--- a/pcap_list_datalinks.3pcap.in
+++ b/pcap_list_datalinks.3pcap.in
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_LIST_DATALINKS 3PCAP "8 March 2015"
+.TH PCAP_LIST_DATALINKS 3PCAP "25 July 2018"
 .SH NAME
 pcap_list_datalinks, pcap_free_datalinks \- get a list of link-layer header
 types supported by a capture device, and free that list
@@ -57,7 +57,7 @@ returns the number of link-layer header types in the array on success,
 if called on a capture handle that has been created but not activated,
 and
 .B PCAP_ERROR
-(\-1) on other errors.
+on other errors.
 If
 .B PCAP_ERROR
 is returned,
diff --git a/pcap_lookupnet.3pcap b/pcap_lookupnet.3pcap
index c38ff3a8..f6094453 100644
--- a/pcap_lookupnet.3pcap
+++ b/pcap_lookupnet.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_LOOKUPNET 3PCAP "3 January 2014"
+.TH PCAP_LOOKUPNET 3PCAP "25 July 2018"
 .SH NAME
 pcap_lookupnet \- find the IPv4 network number and netmask for a device
 .SH SYNOPSIS
@@ -51,8 +51,11 @@ are
 pointers.
 .SH RETURN VALUE
 .B pcap_lookupnet()
-returns 0 on success and \-1 on failure.
-If \-1 is returned,
+returns 0 on success and
+.B PCAP_ERROR
+on failure. If
+.B PCAP_ERROR
+is returned,
 .I errbuf
 is filled in with an appropriate error message.
 .I errbuf
diff --git a/pcap_loop.3pcap b/pcap_loop.3pcap
index de140da1..0193714b 100644
--- a/pcap_loop.3pcap
+++ b/pcap_loop.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_LOOP 3PCAP "20 January 2017"
+.TH PCAP_LOOP 3PCAP "25 July 2018"
 .SH NAME
 pcap_loop, pcap_dispatch \- process packets from a live capture or savefile
 .SH SYNOPSIS
@@ -160,8 +160,11 @@ for Ethernet.
 returns 0 if
 .I cnt
 is exhausted or if, when reading from a ``savefile'', no more packets
-are available.  It returns \-1 if an error occurs or \-2 if the loop
-terminated due to a call to
+are available.  It returns
+.B PCAP_ERROR
+if an error occurs or
+.B PCAP_ERROR_BREAK
+if the loop terminated due to a call to
 .B pcap_breakloop()
 before any packets were processed.
 It does
@@ -177,17 +180,22 @@ platforms that support a packet buffer timeout that starts before any
 packets arrive, the timeout expires before any packets arrive, or if the
 file descriptor for the capture device is in non-blocking mode and no
 packets were available to be read) or if no more packets are available
-in a ``savefile.'' It returns \-1 if an error occurs or \-2 if the loop
-terminated due to a call to
+in a ``savefile.'' It returns
+.B PCAP_ERROR
+if an error occurs or
+.B PCAP_ERROR_BREAK
+if the loop terminated due to a call to
 .B pcap_breakloop()
 before any packets were processed.
 .ft B
 If your application uses pcap_breakloop(),
-make sure that you explicitly check for \-1 and \-2, rather than just
-checking for a return value < 0.
+make sure that you explicitly check for PCAP_ERROR and PCAP_ERROR_BREAK,
+rather than just checking for a return value < 0.
 .ft R
 .PP
-If \-1 is returned,
+If
+.B PCAP_ERROR
+is returned,
 .B pcap_geterr(3PCAP)
 or
 .B pcap_perror(3PCAP)
diff --git a/pcap_next_ex.3pcap b/pcap_next_ex.3pcap
index 983d4100..f0eb82d1 100644
--- a/pcap_next_ex.3pcap
+++ b/pcap_next_ex.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_NEXT_EX 3PCAP "20 January 2017"
+.TH PCAP_NEXT_EX 3PCAP "25 July 2018"
 .SH NAME
 pcap_next_ex, pcap_next \- read the next packet from a pcap_t
 .SH SYNOPSIS
@@ -114,9 +114,14 @@ for Ethernet.
 .B pcap_next_ex()
 returns 1 if the packet was read without problems, 0 if packets are
 being read from a live capture and the packet buffer timeout expired,
-\-1 if an error occurred while reading the packet, and \-2 if packets
+.B PCAP_ERROR
+if an error occurred while reading the packet, and
+.B PCAP_ERROR_BREAK
+if packets
 are being read from a ``savefile'' and there are no more packets to read
-from the savefile.  If \-1 is returned,
+from the savefile.  If
+.B PCAP_ERROR
+is returned,
 .B pcap_geterr(3PCAP)
 or
 .B pcap_perror(3PCAP)
diff --git a/pcap_set_datalink.3pcap b/pcap_set_datalink.3pcap
index 7613a58a..66cfdb1e 100644
--- a/pcap_set_datalink.3pcap
+++ b/pcap_set_datalink.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_SET_DATALINK 3PCAP "3 January 2014"
+.TH PCAP_SET_DATALINK 3PCAP "25 July 2018"
 .SH NAME
 pcap_set_datalink \- set the link-layer header type to be used by a
 capture device
@@ -38,8 +38,11 @@ to the type specified by
 .IR dlt .
 .SH RETURN VALUE
 .B pcap_set_datalink()
-returns 0 on success and \-1 on failure.
-If \-1 is returned,
+returns 0 on success and
+.B PCAP_ERROR
+on failure. If
+.B PCAP_ERROR
+is returned,
 .B pcap_geterr(3PCAP)
 or
 .B pcap_perror(3PCAP)
diff --git a/pcap_setdirection.3pcap b/pcap_setdirection.3pcap
index 11fef513..f174b98f 100644
--- a/pcap_setdirection.3pcap
+++ b/pcap_setdirection.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_SETDIRECTION 3PCAP "8 March 2015"
+.TH PCAP_SETDIRECTION 3PCAP "25 July 2018"
 .SH NAME
 pcap_setdirection \- set the direction for which packets will be captured
 .SH SYNOPSIS
@@ -57,8 +57,11 @@ support
 This operation is not supported if a ``savefile'' is being read.
 .SH RETURN VALUE
 .B pcap_setdirection()
-returns 0 on success and \-1 on failure.
-If \-1 is returned,
+returns 0 on success and
+.B PCAP_ERROR
+on failure. If
+.B PCAP_ERROR
+is returned,
 .B pcap_geterr(3PCAP)
 or
 .B pcap_perror(3PCAP)
diff --git a/pcap_setfilter.3pcap b/pcap_setfilter.3pcap
index ca910127..87296939 100644
--- a/pcap_setfilter.3pcap
+++ b/pcap_setfilter.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_SETFILTER 3PCAP "7 April 2014"
+.TH PCAP_SETFILTER 3PCAP "25 July 2018"
 .SH NAME
 pcap_setfilter \- set the filter
 .SH SYNOPSIS
@@ -40,8 +40,11 @@ struct, usually the result of a call to
 .BR \%pcap_compile(3PCAP) .
 .SH RETURN VALUE
 .B pcap_setfilter()
-returns 0 on success and \-1 on failure.
-If \-1 is returned,
+returns 0 on success and
+.B PCAP_ERROR
+on failure. If
+.B PCAP_ERROR
+is returned,
 .B pcap_geterr(3PCAP)
 or
 .B pcap_perror(3PCAP)
diff --git a/pcap_setnonblock.3pcap b/pcap_setnonblock.3pcap
index 1b138b80..e8adebea 100644
--- a/pcap_setnonblock.3pcap
+++ b/pcap_setnonblock.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_SETNONBLOCK 3PCAP "18 October 2014"
+.TH PCAP_SETNONBLOCK 3PCAP "25 July 2018"
 .SH NAME
 pcap_setnonblock, pcap_getnonblock \- set or get the state of
 non-blocking mode on a capture device
@@ -43,7 +43,9 @@ puts a capture handle into ``non-blocking'' mode, or takes it out
 of ``non-blocking'' mode, depending on whether the
 .I nonblock
 argument is non-zero or zero.  It has no effect on ``savefiles''.
-If there is an error, \-1 is returned and
+If there is an error,
+.B PCAP_ERROR
+is returned and
 .I errbuf
 is filled in with an appropriate error message; otherwise, 0 is
 returned.
@@ -69,7 +71,9 @@ is required in order to put it into ``non-blocking'' mode.
 .B pcap_getnonblock()
 returns the current ``non-blocking'' state of the capture descriptor; it
 always returns 0 on ``savefiles''.
-If there is an error, \-1 is returned and
+If there is an error,
+.B PCAP_ERROR
+is returned and
 .I errbuf
 is filled in with an appropriate error message.
 .PP
diff --git a/pcap_stats.3pcap b/pcap_stats.3pcap
index f10ba832..465dada4 100644
--- a/pcap_stats.3pcap
+++ b/pcap_stats.3pcap
@@ -17,7 +17,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH PCAP_STATS 3PCAP "3 January 2014"
+.TH PCAP_STATS 3PCAP "25 July 2018"
 .SH NAME
 pcap_stats \- get capture statistics
 .SH SYNOPSIS
@@ -83,10 +83,13 @@ statistic is unavailable, so it should not be treated as an indication
 that the interface did not drop any packets.
 .SH RETURN VALUE
 .B pcap_stats()
-returns 0 on success and returns \-1 if there is an error or if
+returns 0 on success and returns
+.B PCAP_ERROR
+if there is an error or if
 .I p
-doesn't support packet statistics.
-If \-1 is returned,
+doesn't support packet statistics. If
+.B PCAP_ERROR
+is returned,
 .B pcap_geterr(3PCAP)
 or
 .B pcap_perror(3PCAP)