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Code Issues Releases Activity

Support for short-version ipv6-addresses

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This commit is contained in:
Nikolas Garofil 2011-02-10 16:01:16 +01:00
parent 2aafb591ee
commit 5a5e8f80b1
1 changed files with 29 additions and 4 deletions
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33
src/net_stat.cc
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@ -221,10 +221,35 @@ void print_v6addrs(struct text_object *obj, char *p, int p_max_size)
return;
}
while(current_v6) {
for(int i=0; i<8; i++) {
strncpy(current_char, current_v6->addr+(i*4), 4);
*(current_char+4)=':';
current_char+=5;
char extracompress = 0; //0 until the first '0000', 1 after the first '0000', 2 after the first non-'0000' after a '0000'
for(int i=0; i<8; i++) { //loop trough the 8 parts of the ipv6
//skip the zeros in front of each part
int j=0;
while(j<4) if(*(current_v6->addr+(i*4)+j) == '0') j++; else break;
if(j==4) {
if(*(current_v6->addr+(i*4)+3) == '0') { //4 zeros
switch(extracompress) {
case 0: //first time this happens, so replace by '::'
*current_char = ':';
current_char++;
if(current_char == p+1) { //to make sure there is no ':::' when the first '0000' isn't at the beginning
*current_char = ':';
current_char++;
}
extracompress=1;
continue;
case 1: //again, ignore them, they are included in the '::'
continue;
default: //again, but only remove the first 3 zero's because extra-compression may no longer be applied
j=3; //but if there are 4 zero's, keep the last
}
} else j=0; //no zeros to skip
}
if(extracompress == 1) extracompress = 2;
//place each part followed by : in the ip
strncpy(current_char, current_v6->addr+(i*4)+j, 4-j);
*(current_char+4-j)=':';
current_char+=5-j;
}
current_v6 = current_v6->next;
if(current_v6) {