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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
sequence number encoded into the given port number. trynum and pingseq may
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) {
u16 portno;
/* trynum and pingseq both being non-zero is not currently supported. */
assert(trynum == 0 || pingseq == 0);
portno = base_portno;
if (pingseq > 0) {
/* Encode the pingseq. trynum = 0. */
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
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
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) {
int t;
t = portno - magic_portno;
t = portno - base_portno;
if (t > USI->perf.tryno_cap + 256) {
return false;
} else if (t > USI->perf.tryno_cap) {