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-rw-r--r--wiretap/5views.h2
-rw-r--r--wiretap/aethra.h2
-rw-r--r--wiretap/ascendtext.h2
-rw-r--r--wiretap/ber.h2
-rw-r--r--wiretap/btsnoop.h2
-rw-r--r--wiretap/camins.h2
-rw-r--r--wiretap/catapult_dct2000.h2
-rw-r--r--wiretap/commview.h2
-rw-r--r--wiretap/cosine.h2
-rw-r--r--wiretap/csids.h2
-rw-r--r--wiretap/daintree-sna.h2
-rw-r--r--wiretap/dbs-etherwatch.h2
-rw-r--r--wiretap/dct3trace.h2
-rw-r--r--wiretap/erf.h2
-rw-r--r--wiretap/eyesdn.h2
-rw-r--r--wiretap/hcidump.h2
-rw-r--r--wiretap/i4btrace.h2
-rw-r--r--wiretap/ipfix.h2
-rw-r--r--wiretap/iptrace.h2
-rw-r--r--wiretap/iseries.h2
-rw-r--r--wiretap/k12.h4
-rw-r--r--wiretap/lanalyzer.h2
-rw-r--r--wiretap/libpcap.h2
-rw-r--r--wiretap/logcat.h2
-rw-r--r--wiretap/logcat_text.h2
-rw-r--r--wiretap/mime_file.h2
-rw-r--r--wiretap/mp2t.h2
-rw-r--r--wiretap/mpeg.h2
-rw-r--r--wiretap/netmon.h2
-rw-r--r--wiretap/netscaler.h2
-rw-r--r--wiretap/netscreen.h2
-rw-r--r--wiretap/nettl.h2
-rw-r--r--wiretap/network_instruments.h2
-rw-r--r--wiretap/netxray.h2
-rw-r--r--wiretap/ngsniffer.h2
-rw-r--r--wiretap/packetlogger.h2
-rw-r--r--wiretap/pcapng.h2
-rw-r--r--wiretap/peekclassic.h2
-rw-r--r--wiretap/peektagged.h2
-rw-r--r--wiretap/pppdump.h2
-rw-r--r--wiretap/radcom.h2
-rw-r--r--wiretap/snoop.h2
-rw-r--r--wiretap/stanag4607.h2
-rw-r--r--wiretap/tnef.h2
-rw-r--r--wiretap/toshiba.h2
-rw-r--r--wiretap/visual.h2
-rw-r--r--wiretap/vms.h2
-rw-r--r--wiretap/vwr.h2
48 files changed, 49 insertions, 49 deletions
diff --git a/wiretap/5views.h b/wiretap/5views.h
index 79d4477cb1..26240fa213 100644
--- a/wiretap/5views.h
+++ b/wiretap/5views.h
@@ -23,7 +23,7 @@
#include <glib.h>
#include <wtap.h>
-int _5views_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val _5views_open(wtap *wth, int *err, gchar **err_info);
gboolean _5views_dump_open(wtap_dumper *wdh, int *err);
int _5views_dump_can_write_encap(int encap);
diff --git a/wiretap/aethra.h b/wiretap/aethra.h
index 5c36ff4499..7ed2f829f2 100644
--- a/wiretap/aethra.h
+++ b/wiretap/aethra.h
@@ -24,6 +24,6 @@
#include <glib.h>
#include <wtap.h>
-int aethra_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val aethra_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/ascendtext.h b/wiretap/ascendtext.h
index 369ffa1cd2..3c2736cfa7 100644
--- a/wiretap/ascendtext.h
+++ b/wiretap/ascendtext.h
@@ -27,6 +27,6 @@
#define ASCEND_MAX_DATA_COLS 16
#define ASCEND_MAX_PKT_LEN (ASCEND_MAX_DATA_ROWS * ASCEND_MAX_DATA_COLS)
-int ascend_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val ascend_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/ber.h b/wiretap/ber.h
index 0448ad6bb8..e16b09cc2d 100644
--- a/wiretap/ber.h
+++ b/wiretap/ber.h
@@ -23,6 +23,6 @@
#include <glib.h>
#include "ws_symbol_export.h"
-int ber_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val ber_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/btsnoop.h b/wiretap/btsnoop.h
index 66f699b448..7611fb4d42 100644
--- a/wiretap/btsnoop.h
+++ b/wiretap/btsnoop.h
@@ -23,7 +23,7 @@
#include <glib.h>
#include "ws_symbol_export.h"
-int btsnoop_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val btsnoop_open(wtap *wth, int *err, gchar **err_info);
gboolean btsnoop_dump_open_h1(wtap_dumper *wdh, int *err);
gboolean btsnoop_dump_open_h4(wtap_dumper *wdh, int *err);
int btsnoop_dump_can_write_encap(int encap);
diff --git a/wiretap/camins.h b/wiretap/camins.h
index 785488e361..676b2cf5bd 100644
--- a/wiretap/camins.h
+++ b/wiretap/camins.h
@@ -28,6 +28,6 @@
#include <glib.h>
#include <wiretap/wtap.h>
-int camins_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val camins_open(wtap *wth, int *err, gchar **err_info);
#endif /* _CAMINS_H */
diff --git a/wiretap/catapult_dct2000.h b/wiretap/catapult_dct2000.h
index e145a643d9..250ca95843 100644
--- a/wiretap/catapult_dct2000.h
+++ b/wiretap/catapult_dct2000.h
@@ -24,7 +24,7 @@
#include <glib.h>
#include "ws_symbol_export.h"
-int catapult_dct2000_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val catapult_dct2000_open(wtap *wth, int *err, gchar **err_info);
gboolean catapult_dct2000_dump_open(wtap_dumper *wdh, int *err);
int catapult_dct2000_dump_can_write_encap(int encap);
diff --git a/wiretap/commview.h b/wiretap/commview.h
index 7c02006b48..74dc53ed91 100644
--- a/wiretap/commview.h
+++ b/wiretap/commview.h
@@ -25,7 +25,7 @@
#include <glib.h>
#include "ws_symbol_export.h"
-int commview_open(wtap *wth, int *err, gchar **err_info _U_);
+wtap_open_return_val commview_open(wtap *wth, int *err, gchar **err_info _U_);
int commview_dump_can_write_encap(int encap);
gboolean commview_dump_open(wtap_dumper *wdh, int *err);
diff --git a/wiretap/cosine.h b/wiretap/cosine.h
index c6bb424251..00ea3d9e46 100644
--- a/wiretap/cosine.h
+++ b/wiretap/cosine.h
@@ -28,6 +28,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int cosine_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val cosine_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/csids.h b/wiretap/csids.h
index 8f19f63964..ca9a6bc46d 100644
--- a/wiretap/csids.h
+++ b/wiretap/csids.h
@@ -25,6 +25,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int csids_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val csids_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/daintree-sna.h b/wiretap/daintree-sna.h
index 1ad396a4e3..90fc1ca44b 100644
--- a/wiretap/daintree-sna.h
+++ b/wiretap/daintree-sna.h
@@ -27,7 +27,7 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int daintree_sna_open(wtap *wth, int *err, gchar **err_info _U_);
+wtap_open_return_val daintree_sna_open(wtap *wth, int *err, gchar **err_info _U_);
#endif /* __DAINTREE_SNA_H__ */
diff --git a/wiretap/dbs-etherwatch.h b/wiretap/dbs-etherwatch.h
index d28e33dae1..8a72277fce 100644
--- a/wiretap/dbs-etherwatch.h
+++ b/wiretap/dbs-etherwatch.h
@@ -25,6 +25,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int dbs_etherwatch_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val dbs_etherwatch_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/dct3trace.h b/wiretap/dct3trace.h
index d7bfc9cad9..886e4e759a 100644
--- a/wiretap/dct3trace.h
+++ b/wiretap/dct3trace.h
@@ -24,6 +24,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int dct3trace_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val dct3trace_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/erf.h b/wiretap/erf.h
index 44a293f464..a123898bea 100644
--- a/wiretap/erf.h
+++ b/wiretap/erf.h
@@ -103,7 +103,7 @@ union erf_subhdr {
#define RECORDS_FOR_ERF_CHECK 20
#define FCS_BITS 32
-int erf_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val erf_open(wtap *wth, int *err, gchar **err_info);
int erf_dump_can_write_encap(int encap);
int erf_dump_open(wtap_dumper *wdh, int *err);
diff --git a/wiretap/eyesdn.h b/wiretap/eyesdn.h
index c000a8bf6a..214de90f44 100644
--- a/wiretap/eyesdn.h
+++ b/wiretap/eyesdn.h
@@ -26,7 +26,7 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int eyesdn_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val eyesdn_open(wtap *wth, int *err, gchar **err_info);
enum EyeSDN_TYPES {
EYESDN_ENCAP_ISDN=0,
diff --git a/wiretap/hcidump.h b/wiretap/hcidump.h
index 96453f9f36..b5ff9fbc7e 100644
--- a/wiretap/hcidump.h
+++ b/wiretap/hcidump.h
@@ -25,6 +25,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int hcidump_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val hcidump_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/i4btrace.h b/wiretap/i4btrace.h
index 7b94eec88a..4f4a0dcbe0 100644
--- a/wiretap/i4btrace.h
+++ b/wiretap/i4btrace.h
@@ -26,6 +26,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int i4btrace_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val i4btrace_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/ipfix.h b/wiretap/ipfix.h
index 578af4ca61..a4b0677b74 100644
--- a/wiretap/ipfix.h
+++ b/wiretap/ipfix.h
@@ -25,6 +25,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int ipfix_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val ipfix_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/iptrace.h b/wiretap/iptrace.h
index 0b44ff684d..90cffa2a0c 100644
--- a/wiretap/iptrace.h
+++ b/wiretap/iptrace.h
@@ -25,6 +25,6 @@
#include <glib.h>
#include <wtap.h>
-int iptrace_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val iptrace_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/iseries.h b/wiretap/iseries.h
index 95373e4a61..bc81c40dc4 100644
--- a/wiretap/iseries.h
+++ b/wiretap/iseries.h
@@ -24,6 +24,6 @@
#include <glib.h>
#include <wtap.h>
-int iseries_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val iseries_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/k12.h b/wiretap/k12.h
index 64a46f0d77..87e776f28b 100644
--- a/wiretap/k12.h
+++ b/wiretap/k12.h
@@ -24,10 +24,10 @@
#include <glib.h>
#include <wtap.h>
-int k12_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val k12_open(wtap *wth, int *err, gchar **err_info);
int k12_dump_can_write_encap(int encap);
gboolean k12_dump_open(wtap_dumper *wdh, int *err);
-int k12text_open(wtap *wth, int *err, gchar **err_info _U_);
+wtap_open_return_val k12text_open(wtap *wth, int *err, gchar **err_info _U_);
int k12text_dump_can_write_encap(int encap);
gboolean k12text_dump_open(wtap_dumper *wdh, int *err);
diff --git a/wiretap/lanalyzer.h b/wiretap/lanalyzer.h
index d36de2711d..f249c78b5c 100644
--- a/wiretap/lanalyzer.h
+++ b/wiretap/lanalyzer.h
@@ -24,7 +24,7 @@
#include <glib.h>
#include <wtap.h>
-int lanalyzer_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val lanalyzer_open(wtap *wth, int *err, gchar **err_info);
gboolean lanalyzer_dump_open(wtap_dumper *wdh, int *err);
int lanalyzer_dump_can_write_encap(int encap);
diff --git a/wiretap/libpcap.h b/wiretap/libpcap.h
index 4763312fb2..545c1f6406 100644
--- a/wiretap/libpcap.h
+++ b/wiretap/libpcap.h
@@ -100,7 +100,7 @@ struct pcaprec_nokia_hdr {
guint8 stuff[4]; /* mysterious stuff */
};
-int libpcap_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val libpcap_open(wtap *wth, int *err, gchar **err_info);
gboolean libpcap_dump_open(wtap_dumper *wdh, int *err);
int libpcap_dump_can_write_encap(int encap);
diff --git a/wiretap/logcat.h b/wiretap/logcat.h
index 71a0e7da5b..447c4dcb71 100644
--- a/wiretap/logcat.h
+++ b/wiretap/logcat.h
@@ -57,7 +57,7 @@ struct logger_entry_v2 {
/* char msg[0]; *//* the entry's payload */
};
-int logcat_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val logcat_open(wtap *wth, int *err, gchar **err_info);
gboolean logcat_binary_dump_open(wtap_dumper *wdh, int *err);
diff --git a/wiretap/logcat_text.h b/wiretap/logcat_text.h
index 90f88ec0f1..41fb1d343c 100644
--- a/wiretap/logcat_text.h
+++ b/wiretap/logcat_text.h
@@ -25,7 +25,7 @@
#include "wtap.h"
-int logcat_text_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val logcat_text_open(wtap *wth, int *err, gchar **err_info);
gboolean logcat_text_brief_dump_open(wtap_dumper *wdh, int *err);
gboolean logcat_text_process_dump_open(wtap_dumper *wdh, int *err);
diff --git a/wiretap/mime_file.h b/wiretap/mime_file.h
index 7c3d05a95e..5344ef31aa 100644
--- a/wiretap/mime_file.h
+++ b/wiretap/mime_file.h
@@ -24,6 +24,6 @@
#include <glib.h>
#include <wtap.h>
-int mime_file_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val mime_file_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/mp2t.h b/wiretap/mp2t.h
index a207b60afb..ea8755fc30 100644
--- a/wiretap/mp2t.h
+++ b/wiretap/mp2t.h
@@ -26,6 +26,6 @@
#include <glib.h>
#include <wtap.h>
-int mp2t_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val mp2t_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/mpeg.h b/wiretap/mpeg.h
index 6f44af2a95..24251ce069 100644
--- a/wiretap/mpeg.h
+++ b/wiretap/mpeg.h
@@ -26,6 +26,6 @@
#include <glib.h>
#include <wtap.h>
-int mpeg_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val mpeg_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/netmon.h b/wiretap/netmon.h
index 5f5f05ef11..60fefd7021 100644
--- a/wiretap/netmon.h
+++ b/wiretap/netmon.h
@@ -24,7 +24,7 @@
#include <glib.h>
#include <wtap.h>
-int netmon_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val netmon_open(wtap *wth, int *err, gchar **err_info);
gboolean netmon_dump_open(wtap_dumper *wdh, int *err);
int netmon_dump_can_write_encap_1_x(int encap);
int netmon_dump_can_write_encap_2_x(int encap);
diff --git a/wiretap/netscaler.h b/wiretap/netscaler.h
index b269ff9e1f..a4e080f594 100644
--- a/wiretap/netscaler.h
+++ b/wiretap/netscaler.h
@@ -113,7 +113,7 @@
#define NSPR_HEADER_VERSION206 0x26
#define NSPR_HEADER_VERSION300 0x30
-int nstrace_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val nstrace_open(wtap *wth, int *err, gchar **err_info);
int nstrace_10_dump_can_write_encap(int encap);
int nstrace_20_dump_can_write_encap(int encap);
int nstrace_30_dump_can_write_encap(int encap);
diff --git a/wiretap/netscreen.h b/wiretap/netscreen.h
index f652f0cd44..ec6e687772 100644
--- a/wiretap/netscreen.h
+++ b/wiretap/netscreen.h
@@ -49,6 +49,6 @@
#define NETSCREEN_MAX_PACKET_LEN 65536
-int netscreen_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val netscreen_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/nettl.h b/wiretap/nettl.h
index e15fd3d1d4..b54b9bc334 100644
--- a/wiretap/nettl.h
+++ b/wiretap/nettl.h
@@ -128,7 +128,7 @@
#define NETTL_HDR_PDU_MASK 0x30000000
-int nettl_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val nettl_open(wtap *wth, int *err, gchar **err_info);
gboolean nettl_dump_open(wtap_dumper *wdh, int *err);
int nettl_dump_can_write_encap(int encap);
diff --git a/wiretap/network_instruments.h b/wiretap/network_instruments.h
index 1d6065a172..340bb3dff1 100644
--- a/wiretap/network_instruments.h
+++ b/wiretap/network_instruments.h
@@ -21,7 +21,7 @@
#include <glib.h>
#include <wtap.h>
-int network_instruments_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val network_instruments_open(wtap *wth, int *err, gchar **err_info);
int network_instruments_dump_can_write_encap(int encap);
gboolean network_instruments_dump_open(wtap_dumper *wdh, int *err);
diff --git a/wiretap/netxray.h b/wiretap/netxray.h
index df28c774e2..bb424dc7b9 100644
--- a/wiretap/netxray.h
+++ b/wiretap/netxray.h
@@ -24,7 +24,7 @@
#include <glib.h>
#include <wtap.h>
-int netxray_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val netxray_open(wtap *wth, int *err, gchar **err_info);
int netxray_dump_can_write_encap_1_1(int encap);
gboolean netxray_dump_open_1_1(wtap_dumper *wdh, int *err);
int netxray_dump_can_write_encap_2_0(int encap);
diff --git a/wiretap/ngsniffer.h b/wiretap/ngsniffer.h
index db0c525b1e..a2729f42d6 100644
--- a/wiretap/ngsniffer.h
+++ b/wiretap/ngsniffer.h
@@ -24,7 +24,7 @@
#include <glib.h>
#include <wtap.h>
-int ngsniffer_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val ngsniffer_open(wtap *wth, int *err, gchar **err_info);
gboolean ngsniffer_dump_open(wtap_dumper *wdh, int *err);
int ngsniffer_dump_can_write_encap(int encap);
diff --git a/wiretap/packetlogger.h b/wiretap/packetlogger.h
index 199cd36421..28299c5948 100644
--- a/wiretap/packetlogger.h
+++ b/wiretap/packetlogger.h
@@ -27,7 +27,7 @@
#include <glib.h>
#include <wtap.h>
-int packetlogger_open(wtap *wth, int *err, gchar **err_info _U_);
+wtap_open_return_val packetlogger_open(wtap *wth, int *err, gchar **err_info _U_);
#endif /* __PACKETLOGGER_H__ */
diff --git a/wiretap/pcapng.h b/wiretap/pcapng.h
index 92c4ca1136..a568ab1a94 100644
--- a/wiretap/pcapng.h
+++ b/wiretap/pcapng.h
@@ -25,7 +25,7 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int pcapng_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val pcapng_open(wtap *wth, int *err, gchar **err_info);
gboolean pcapng_dump_open(wtap_dumper *wdh, int *err);
int pcapng_dump_can_write_encap(int encap);
diff --git a/wiretap/peekclassic.h b/wiretap/peekclassic.h
index b3f4201252..0b4857c4a6 100644
--- a/wiretap/peekclassic.h
+++ b/wiretap/peekclassic.h
@@ -26,6 +26,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int peekclassic_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val peekclassic_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/peektagged.h b/wiretap/peektagged.h
index 62a42306f9..52c074bfff 100644
--- a/wiretap/peektagged.h
+++ b/wiretap/peektagged.h
@@ -23,6 +23,6 @@
#include <glib.h>
#include "ws_symbol_export.h"
-int peektagged_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val peektagged_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/pppdump.h b/wiretap/pppdump.h
index 67ab1aaa02..da1bb703db 100644
--- a/wiretap/pppdump.h
+++ b/wiretap/pppdump.h
@@ -25,6 +25,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int pppdump_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val pppdump_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/radcom.h b/wiretap/radcom.h
index 6daacffbef..35bfff9d25 100644
--- a/wiretap/radcom.h
+++ b/wiretap/radcom.h
@@ -26,6 +26,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int radcom_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val radcom_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/snoop.h b/wiretap/snoop.h
index b8b29098c1..dc1130b88c 100644
--- a/wiretap/snoop.h
+++ b/wiretap/snoop.h
@@ -25,7 +25,7 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int snoop_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val snoop_open(wtap *wth, int *err, gchar **err_info);
gboolean snoop_dump_open(wtap_dumper *wdh, int *err);
int snoop_dump_can_write_encap(int encap);
diff --git a/wiretap/stanag4607.h b/wiretap/stanag4607.h
index bb3f2b3d78..602aaf87fd 100644
--- a/wiretap/stanag4607.h
+++ b/wiretap/stanag4607.h
@@ -25,6 +25,6 @@
#include <wiretap/wtap.h>
#include "ws_symbol_export.h"
-int stanag4607_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val stanag4607_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/tnef.h b/wiretap/tnef.h
index 154ba6df1b..16aa0df110 100644
--- a/wiretap/tnef.h
+++ b/wiretap/tnef.h
@@ -27,6 +27,6 @@
#define TNEF_SIGNATURE 0x223E9F78
-int tnef_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val tnef_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/toshiba.h b/wiretap/toshiba.h
index 4b3ffffeb8..ba49e06ddd 100644
--- a/wiretap/toshiba.h
+++ b/wiretap/toshiba.h
@@ -25,6 +25,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int toshiba_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val toshiba_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/visual.h b/wiretap/visual.h
index 123538a061..dfa9818dc1 100644
--- a/wiretap/visual.h
+++ b/wiretap/visual.h
@@ -30,7 +30,7 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int visual_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val visual_open(wtap *wth, int *err, gchar **err_info);
gboolean visual_dump_open(wtap_dumper *wdh, int *err);
int visual_dump_can_write_encap(int encap);
diff --git a/wiretap/vms.h b/wiretap/vms.h
index 1d37b4746c..7ca660090d 100644
--- a/wiretap/vms.h
+++ b/wiretap/vms.h
@@ -26,6 +26,6 @@
#include <wtap.h>
#include "ws_symbol_export.h"
-int vms_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val vms_open(wtap *wth, int *err, gchar **err_info);
#endif
diff --git a/wiretap/vwr.h b/wiretap/vwr.h
index 9ef3e1803a..c6a41ad8d9 100644
--- a/wiretap/vwr.h
+++ b/wiretap/vwr.h
@@ -24,6 +24,6 @@
#include "ws_symbol_export.h"
-int vwr_open(wtap *wth, int *err, gchar **err_info);
+wtap_open_return_val vwr_open(wtap *wth, int *err, gchar **err_info);
#endif