For fun and excitement :) I tried compiling the 10.09 bits on an IA64 HP-UX
11.23 system. I'm not _entirely_ certain of the lineage of the compiler I'm
using, having gotten it from an internal depot, but it did emit some warnings
that may or may not be meaningful:
the first batch look mostly like someone using a shorthand of "-1" to try to set
something to all ones:
cc -O -I. -I/usr/local/include -DHAVE_CONFIG_H -D_U_="__attribute__((u
nused))" -c ./gencode.c
"./gencode.c", line 777: warning #2068-D: integer conversion resulted in a
change of sign
off_vpi = -1;
^
"./gencode.c", line 778: warning #2068-D: integer conversion resulted in a
change of sign
off_vci = -1;
^
"./gencode.c", line 779: warning #2068-D: integer conversion resulted in a
change of sign
off_proto = -1;
^
"./gencode.c", line 780: warning #2068-D: integer conversion resulted in a
change of sign
off_payload = -1;
^
"./gencode.c", line 785: warning #2068-D: integer conversion resulted in a
change of sign
off_sio = -1;
^
"./gencode.c", line 786: warning #2068-D: integer conversion resulted in a
change of sign
off_opc = -1;
^
"./gencode.c", line 787: warning #2068-D: integer conversion resulted in a
change of sign
off_dpc = -1;
^
"./gencode.c", line 788: warning #2068-D: integer conversion resulted in a
change of sign
off_sls = -1;
^
"./gencode.c", line 795: warning #2068-D: integer conversion resulted in a
change of sign
orig_linktype = -1;
^
"./gencode.c", line 796: warning #2068-D: integer conversion resulted in a
change of sign
orig_nl = -1;
^
"./gencode.c", line 826: warning #2068-D: integer conversion resulted in a
change of sign
off_linktype = -1;
^
"./gencode.c", line 833: warning #2068-D: integer conversion resulted in a
change of sign
off_linktype = -1;
^
"./gencode.c", line 1028: warning #2068-D: integer conversion resulted in a
change of sign
off_mac = -1; /* LLC-encapsulated, so no MAC-layer header */
^
"./gencode.c", line 1036: warning #2068-D: integer conversion resulted in a
change of sign
off_linktype = -1;
^
"./gencode.c", line 1053: warning #2068-D: integer conversion resulted in a
change of sign
off_linktype = -1;
^
"./gencode.c", line 1079: warning #2068-D: integer conversion resulted in a
change of sign
off_linktype = -1;
^
"./gencode.c", line 1094: warning #2068-D: integer conversion resulted in a
change of sign
off_linktype = -1;
^
"./gencode.c", line 1095: warning #2068-D: integer conversion resulted in a
change of sign
off_nl = -1;
^
"./gencode.c", line 1096: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1;
^
"./gencode.c", line 1103: warning #2068-D: integer conversion resulted in a
change of sign
off_linktype = -1;
^
"./gencode.c", line 1104: warning #2068-D: integer conversion resulted in a
change of sign
off_nl = -1;
^
"./gencode.c", line 1105: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1;
^
"./gencode.c", line 1129: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1; /* no 802.2 LLC */
^
"./gencode.c", line 1156: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1; /* no 802.2 LLC */
^
"./gencode.c", line 1162: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1; /* no 802.2 LLC */
^
"./gencode.c", line 1167: warning #2068-D: integer conversion resulted in a
change of sign
off_nl = -1; /* not really a network layer but raw IP
adresses */
^
"./gencode.c", line 1168: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1; /* no 802.2 LLC */
^
"./gencode.c", line 1174: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1; /* no 802.2 LLC */
^
"./gencode.c", line 1179: warning #2068-D: integer conversion resulted in a
change of sign
off_nl = -1; /* L3 proto location dep. on cookie type
*/
^
"./gencode.c", line 1180: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1; /* no 802.2 LLC */
^
"./gencode.c", line 1188: warning #2068-D: integer conversion resulted in a
change of sign
off_linktype = -1;
^
"./gencode.c", line 1189: warning #2068-D: integer conversion resulted in a
change of sign
off_nl = -1;
^
"./gencode.c", line 1190: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1;
^
"./gencode.c", line 1205: warning #2068-D: integer conversion resulted in a
change of sign
off_linktype = -1;
^
"./gencode.c", line 1206: warning #2068-D: integer conversion resulted in a
change of sign
off_nl = -1;
^
"./gencode.c", line 1207: warning #2068-D: integer conversion resulted in a
change of sign
off_nl_nosnap = -1;
^
Then we have some that look similar, involving -2:
"./gencode.c", line 3086: warning #2068-D: integer conversion resulted in a
change of sign
b0 = gen_mcmp(OR_NET, -2, BPF_B, 0x01, 0x01);
^
"./gencode.c", line 3094: warning #2068-D: integer conversion resulted in a
change of sign
b0 = gen_mcmp(OR_NET, -2, BPF_B, 0x01, 0x01);
^
And then a missing return statement:
"./gencode.c", line 3103: warning #2940-D: missing return statement at end of
non-void function "gen_mpls_linktype"
}
^
Then we have another signed versus unsigned sort of thing:
cc -O -I. -I/usr/local/include -DHAVE_CONFIG_H
-D_U_="__attribute__((unused))" -c bpf_filter.c
"bpf_filter.c", line 556: warning #2186-D: pointless comparison of unsigned
integer with zero
(p->k >= BPF_MEMWORDS || p->k < 0))
^
switching-over to tcpdump bits:
more sign stuff:
cc -O -DHAVE_CONFIG_H -I./missing -D_U_="__attribute__((unused))" -I.
-I./../libpcap-2005.10.09 -I/usr/local/include -I./missing -c ./print-802_11.c
"./print-802_11.c", line 208: warning #2111-D: statement is unreachable
return 1;
^
"./print-802_11.c", line 1078: warning #2068-D: integer conversion resulted in a
change of sign
IS_EXTENDED(last_presentp) &&
^
"./print-802_11.c", line 1083: warning #2068-D: integer conversion resulted in a
change of sign
if (IS_EXTENDED(last_presentp)) {
^
a warning about a shift count:
cc -O -DHAVE_CONFIG_H -I./missing -D_U_="__attribute__((unused))" -I.
-I./../libpcap-2005.10.09 -I/usr/local/include -I./missing -c ./print-atm.c
"./print-atm.c", line 299: warning #2063-D: shift count is too large
vpi = (cell_header>>20)&0xff;
^
which makes sense since cell_header is only 16 bits in size... :) Of course, it
also looks a bit odd with the EXTRACT:
int
oam_print (const u_char *p, u_int length, u_int hec) {
u_int16_t cell_header, cell_type, func_type,vpi,vci,payload,clp;
cell_header = EXTRACT_32BITS(p);
cell_type = ((*(p+4+hec))>>4) & 0x0f;
func_type = *(p+4+hec) & 0x0f;
vpi = (cell_header>>20)&0xff;
vci = (cell_header>>4)&0xffff;
with cell_header being given the result of EXTRACT_32BITS... is cell header
really supposed to be a 32 bit quantity?
there is a warning about an unused function:
"./print-dccp.c", line 179: warning #2177-D: function "dccp_packet_hdr_len" was
declared but never referenced
static inline unsigned int dccp_packet_hdr_len(const u_int8_t type)
in that same vein:
cc -O -DHAVE_CONFIG_H -I./missing -D_U_="__attribute__((unused))" -I.
-I./../libpcap-2005.10.09 -I/usr/local/include -I./missing -c ./print-isakmp.c
"./print-isakmp.c", line 425: warning #2550-D: variable "q" was set but never us
ed
const u_int32_t *q;
^
"./print-isakmp.c", line 1353: warning #2550-D: variable "nparen" was set but ne
ver used
int nparen;
^
"./print-isakmp.c", line 1395: warning #2550-D: variable "ep" was set but never
used
const u_char *ep;
^
cc -O -DHAVE_CONFIG_H -I./missing -D_U_="__attribute__((unused))" -I.
-I./../libpcap-2005.10.09 -I/usr/local/include -I./missing -c ./print-isoclns.c
"./print-isoclns.c", line 611: warning #2550-D: variable "header" was set but ne
ver used
const struct isis_common_header *header;
^
cc -O -DHAVE_CONFIG_H -I./missing -D_U_="__attribute__((unused))" -I.
-I./../libpcap-2005.10.09 -I/usr/local/include -I./missing -c ./print-pgm.c
"./print-pgm.c", line 165: warning #2550-D: variable "flags1" was set but never
used
u_int8_t opt_type, opt_len, flags1, flags2;
^
"./print-pgm.c", line 165: warning #2550-D: variable "flags2" was set but never
used
u_int8_t opt_type, opt_len, flags1, flags2;
^
cc -O -DHAVE_CONFIG_H -I./missing -D_U_="__attribute__((unused))" -I.
-I./../libpcap-2005.10.09 -I/usr/local/include -I./missing -c ./print-pim.c
"./print-pim.c", line 117: warning #2550-D: variable "maddrlen" was set but neve
r used
int maddrlen, addrlen, ngroups, njoin, nprune;
^
"./print-pim.c", line 117: warning #2550-D: variable "addrlen" was set but never
used
int maddrlen, addrlen, ngroups, njoin, nprune;
^
cc -O -DHAVE_CONFIG_H -I./missing -D_U_="__attribute__((unused))" -I.
-I./../libpcap-2005.10.09 -I/usr/local/include -I./missing -c ./print-sctp.c
"./print-sctp.c", line 298: warning #2550-D: variable "hb" was set but never use
d
const struct sctpHBsender *hb;
^
cc -O -DHAVE_CONFIG_H -I./missing -D_U_="__attribute__((unused))" -I.
-I./../libpcap-2005.10.09 -I/usr/local/include -I./missing -c ./print-icmp6.c
"./print-icmp6.c", line 599: warning #2550-D: variable "opl" was set but never u
sed
const struct nd_opt_hdr *opl; /* why there's no struct? */
^
"./print-icmp6.c", line 601: warning #2550-D: variable "opr" was set but never u
sed
const struct icmp6_opts_redirect *opr;
^
-
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