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Call it base_portno instead of magic_portno.

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david
2012-08-28 13:07:41 +00:00
parent 107e878cbc
commit 5d809a2476
1 changed files with 7 additions and 4 deletions
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11
scan_engine.cc
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@@ -2392,11 +2392,14 @@ static bool seq32_decode(const UltraScanInfo *USI, u32 seq,
number. This returns a new port number that contains a try number or ping number. This returns a new port number that contains a try number or ping
sequence number encoded into the given port number. trynum and pingseq may sequence number encoded into the given port number. trynum and pingseq may
not both be non-zero. Decoding is done by sport_decode. */ not both be non-zero. Decoding is done by sport_decode. */
static u16 sport_encode(UltraScanInfo *USI, u16 portno, unsigned int trynum, static u16 sport_encode(UltraScanInfo *USI, u16 base_portno, unsigned int trynum,
unsigned int pingseq) { unsigned int pingseq) {
u16 portno;
/* trynum and pingseq both being non-zero is not currently supported. */ /* trynum and pingseq both being non-zero is not currently supported. */
assert(trynum == 0 || pingseq == 0); assert(trynum == 0 || pingseq == 0);
portno = base_portno;
if (pingseq > 0) { if (pingseq > 0) {
/* Encode the pingseq. trynum = 0. */ /* Encode the pingseq. trynum = 0. */
portno += USI->perf.tryno_cap + pingseq; portno += USI->perf.tryno_cap + pingseq;
@@ -2409,14 +2412,14 @@ static u16 sport_encode(UltraScanInfo *USI, u16 portno, unsigned int trynum,
} }
/* Undoes sport_encode. This extracts a try number and ping sequence number from /* Undoes sport_encode. This extracts a try number and ping sequence number from
a port number given a "magic" original port number (the one given to a port number given a "base" port number (the one given to
sport_encode). Returns true if the decoded values seem reasonable, false sport_encode). Returns true if the decoded values seem reasonable, false
otherwise. */ otherwise. */
static bool sport_decode(const UltraScanInfo *USI, u16 magic_portno, u16 portno, static bool sport_decode(const UltraScanInfo *USI, u16 base_portno, u16 portno,
unsigned int *trynum, unsigned int *pingseq) { unsigned int *trynum, unsigned int *pingseq) {
int t; int t;
t = portno - magic_portno; t = portno - base_portno;
if (t > USI->perf.tryno_cap + 256) { if (t > USI->perf.tryno_cap + 256) {
return false; return false;
} else if (t > USI->perf.tryno_cap) { } else if (t > USI->perf.tryno_cap) {