mirror of
https://github.com/gigablast/open-source-search-engine.git
synced 2024-10-04 20:27:43 +03:00
79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
#include "gb-include.h"
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#include "ip.h"
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int32_t atoip ( char *s , int32_t slen ) {
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// point to it
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char *p = s;
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// copy into buffer and NULL terminate
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char buf[1024];
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if ( s[slen] ) {
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if ( slen >= 1024 ) slen = 1023;
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gbmemcpy ( buf , s , slen );
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buf [ slen ] = '\0';
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// point to that
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p = buf;
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}
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// convert to int
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struct in_addr in;
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in.s_addr = 0;
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inet_aton ( p , &in );
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// ensure this really is a int32_t before returning ip
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if ( sizeof(in_addr) == 4 ) return in.s_addr;
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// otherwise bitch and return 0
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log("ip:bad inet_aton");
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return 0;
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}
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int32_t atoip ( char *s ) {
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// convert to int
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struct in_addr in;
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in.s_addr = 0;
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inet_aton ( s , &in );
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// ensure this really is a int32_t before returning ip
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if ( sizeof(in_addr) == 4 ) return in.s_addr;
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// otherwise bitch and return 0
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log("ip:bad inet_aton");
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return 0;
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}
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char *iptoa ( int32_t ip ) {
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static char s_buf [ 32 ];
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sprintf ( s_buf , "%hhu.%hhu.%hhu.%hhu",
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(unsigned char)((ip >> 0)&0xff),
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(unsigned char)((ip >> 8)&0xff),
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(unsigned char)((ip >> 16)&0xff),
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(unsigned char)((ip >> 24)&0xff));
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return s_buf;
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//struct in_addr in;
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//in.s_addr = ip;
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//return inet_ntoa ( in );
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}
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// . get domain of ip address
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// . first byte is the host (little endian)
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int32_t ipdom ( int32_t ip ) { return ip & 0x00ffffff; };
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// most significant 2 bytes of ip
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int32_t iptop ( int32_t ip ) { return ip & 0x0000ffff; };
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// . is least significant byte a zero?
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// . if it is then this ip is probably representing a whole ip domain
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bool isIpDom ( int32_t ip ) { return ( (ip & 0xff000000) == 0 ); };
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// are last 2 bytes 0's?
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int32_t isIpTop ( int32_t ip ) { return ( (ip & 0xffff0000) == 0 ); };
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// returns number of top bytes in comon
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int32_t ipCmp ( int32_t ip1 , int32_t ip2 ) {
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char *a = (char *)&ip1;
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char *b = (char *)&ip2;
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// little endian compare
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if ( a[3] != b[3] ) return 0;
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if ( a[2] != b[2] ) return 1;
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if ( a[1] != b[1] ) return 2;
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if ( a[0] != b[0] ) return 3;
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return 4; // exact match
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}
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