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Hi guys,
I'm trying to use 'id' field of nf_conntrack struct but I'm getting the
following error: "dereferencing pointer to incomplete type".
For example, I've tried to modify conntrack-0.9.6 to print this 'id'
field when "Display a real-time event log":
- ------------------
diff --git a/conntrack-0.9.6/src/conntrack.c
b/conntrack-0.9.6/src/conntrack.c
index 82ff544..8b74564 100644
- --- a/conntrack.c
+++ b/conntrack.c
@@ -603,7 +603,7 @@ static int event_cb(enum nf_conntrack_msg_type type,
}
nfct_snprintf(buf, 1024, ct, type, output_type, output_flags);
- - printf("%s\n", buf);
+ printf("%s id=%u\n", buf, ct->id);
fflush(stdout);
return NFCT_CB_CONTINUE;
- ------------------
And tried to compile with gcc 4.3:
- -------------------------
gcc -DPACKAGE_NAME=\"conntrack-tools\"
- -DPACKAGE_TARNAME=\"conntrack-tools\" -DPACKAGE_VERSION=\"0.9.6\"
- -DPACKAGE_STRING=\"conntrack-tools\ 0.9.6\"
- -DPACKAGE_BUGREPORT=\"pablo@xxxxxxxxxxxxx\"
- -DPACKAGE=\"conntrack-tools\" -DVERSION=\"0.9.6\" -DSTDC_HEADERS=1
- -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1
- -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1
- -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1
- -DYYTEXT_POINTER=1 -DHAVE_LINUX_CAPABILITY_H=1 -DHAVE_LIBNFNETLINK=1
- -DHAVE_LIBNETFILTER_CONNTRACK=1 -DHAVE_ARPA_INET_H=1 -DHAVE_INET_PTON=1
- -DHAVE_INET_PTON_IPV6=1 -I. -I../include -std=gnu99 -W -Wall -Werror
- -Wmissing-prototypes -Wwrite-strings -Wcast-qual -Wfloat-equal -Wshadow
- -Wpointer-arith -Wbad-function-cast -Wsign-compare -Waggregate-return
- -Wmissing-declarations -Wredundant-decls -Wnested-externs -Winline
- -Wstrict-prototypes -Wundef -Wno-unused-parameter -g -O2 -MT
conntrack.o -MD -MP -MF .deps/conntrack.Tpo -c -o conntrack.o conntrack.c
conntrack.c: In function ‘event_cb’:
conntrack.c:606: error: dereferencing pointer to incomplete type
make: ** [conntrack.o] Erro 1
- -------------------------
My gcc version:
~$ gcc --version
gcc (Debian 4.3.2-1.1) 4.3.2
Copyright (C) 2008 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Please, any ideas about what I'm doing wrong?
Thanks for any help!
- --
Saudações,
Italo Valcy :: http://wiki.dcc.ufba.br/~ItaloValcy
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