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Data Structures | Macros | Typedefs | Functions
inet.h File Reference
#include "fmgr.h"
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Data Structures

struct   inet_struct
 
struct   inet
 
struct   macaddr
 
struct   macaddr8
 

Macros

#define  PGSQL_AF_INET   (AF_INET + 0)
 
#define  PGSQL_AF_INET6   (AF_INET + 1)
 
#define  ip_family(inetptr)    (((inet_struct *) VARDATA_ANY(inetptr))->family)
 
#define  ip_bits(inetptr)    (((inet_struct *) VARDATA_ANY(inetptr))->bits)
 
#define  ip_addr(inetptr)    (((inet_struct *) VARDATA_ANY(inetptr))->ipaddr)
 
#define  ip_addrsize(inetptr)    (ip_family(inetptr) == PGSQL_AF_INET ? 4 : 16)
 
#define  ip_maxbits(inetptr)    (ip_family(inetptr) == PGSQL_AF_INET ? 32 : 128)
 
#define  SET_INET_VARSIZE(dst)
 
#define  PG_GETARG_INET_PP(n)   DatumGetInetPP(PG_GETARG_DATUM(n))
 
#define  PG_RETURN_INET_P(x)   return InetPGetDatum(x)
 
#define  PG_GETARG_INET_P(n)   DatumGetInetP(PG_GETARG_DATUM(n))
 
#define  PG_GETARG_MACADDR_P(n)   DatumGetMacaddrP(PG_GETARG_DATUM(n))
 
#define  PG_RETURN_MACADDR_P(x)   return MacaddrPGetDatum(x)
 
#define  PG_GETARG_MACADDR8_P(n)   DatumGetMacaddr8P(PG_GETARG_DATUM(n))
 
#define  PG_RETURN_MACADDR8_P(x)   return Macaddr8PGetDatum(x)
 

Typedefs

typedef struct macaddr  macaddr
 
typedef struct macaddr8  macaddr8
 

Functions

static inet *  DatumGetInetPP (Datum X)
 
static Datum  InetPGetDatum (const inet *X)
 
static inet *  DatumGetInetP (Datum X)
 
static macaddr *  DatumGetMacaddrP (Datum X)
 
static Datum  MacaddrPGetDatum (const macaddr *X)
 
static macaddr8 *  DatumGetMacaddr8P (Datum X)
 
static Datum  Macaddr8PGetDatum (const macaddr8 *X)
 
inet *  cidr_set_masklen_internal (const inet *src, int bits)
 
int  bitncmp (const unsigned char *l, const unsigned char *r, int n)
 
int  bitncommon (const unsigned char *l, const unsigned char *r, int n)
 

Macro Definition Documentation

◆ ip_addr

#define ip_addr (   inetptr )     (((inet_struct *) VARDATA_ANY(inetptr))->ipaddr)

Definition at line 77 of file inet.h.

◆ ip_addrsize

#define ip_addrsize (   inetptr )     (ip_family(inetptr) == PGSQL_AF_INET ? 4 : 16)

Definition at line 80 of file inet.h.

◆ ip_bits

#define ip_bits (   inetptr )     (((inet_struct *) VARDATA_ANY(inetptr))->bits)

Definition at line 74 of file inet.h.

◆ ip_family

#define ip_family (   inetptr )     (((inet_struct *) VARDATA_ANY(inetptr))->family)

Definition at line 71 of file inet.h.

◆ ip_maxbits

#define ip_maxbits (   inetptr )     (ip_family(inetptr) == PGSQL_AF_INET ? 32 : 128)

Definition at line 83 of file inet.h.

◆ PG_GETARG_INET_P

#define PG_GETARG_INET_P (   n )    DatumGetInetP(PG_GETARG_DATUM(n))

Definition at line 143 of file inet.h.

◆ PG_GETARG_INET_PP

#define PG_GETARG_INET_PP (   n )    DatumGetInetPP(PG_GETARG_DATUM(n))

Definition at line 134 of file inet.h.

◆ PG_GETARG_MACADDR8_P

#define PG_GETARG_MACADDR8_P (   n )    DatumGetMacaddr8P(PG_GETARG_DATUM(n))

Definition at line 174 of file inet.h.

◆ PG_GETARG_MACADDR_P

#define PG_GETARG_MACADDR_P (   n )    DatumGetMacaddrP(PG_GETARG_DATUM(n))

Definition at line 158 of file inet.h.

◆ PG_RETURN_INET_P

#define PG_RETURN_INET_P (   x )    return InetPGetDatum(x)

Definition at line 135 of file inet.h.

◆ PG_RETURN_MACADDR8_P

#define PG_RETURN_MACADDR8_P (   x )    return Macaddr8PGetDatum(x)

Definition at line 175 of file inet.h.

◆ PG_RETURN_MACADDR_P

#define PG_RETURN_MACADDR_P (   x )    return MacaddrPGetDatum(x)

Definition at line 159 of file inet.h.

◆ PGSQL_AF_INET

#define PGSQL_AF_INET   (AF_INET + 0)

Definition at line 39 of file inet.h.

◆ PGSQL_AF_INET6

#define PGSQL_AF_INET6   (AF_INET + 1)

Definition at line 40 of file inet.h.

◆ SET_INET_VARSIZE

#define SET_INET_VARSIZE (   dst )
Value:
SET_VARSIZE(dst, VARHDRSZ + offsetof(inet_struct, ipaddr) + \
#define VARHDRSZ
Definition: c.h:697
Definition: inet.h:24
#define ip_addrsize(inetptr)
Definition: inet.h:80
static void SET_VARSIZE(void *PTR, Size len)
Definition: varatt.h:432

Definition at line 86 of file inet.h.

Typedef Documentation

◆ macaddr

typedef struct macaddr macaddr

◆ macaddr8

typedef struct macaddr8 macaddr8

Function Documentation

◆ bitncmp()

int bitncmp ( const unsigned char *  l,
const unsigned char *  r,
int  n 
)

Definition at line 1502 of file network.c.

1503{
1504 unsigned int lb,
1505 rb;
1506 int x,
1507 b;
1508
1509 b = n / 8;
1510 x = memcmp(l, r, b);
1511 if (x || (n % 8) == 0)
1512 return x;
1513
1514 lb = l[b];
1515 rb = r[b];
1516 for (b = n % 8; b > 0; b--)
1517 {
1518 if (IS_HIGHBIT_SET(lb) != IS_HIGHBIT_SET(rb))
1519 {
1520 if (IS_HIGHBIT_SET(lb))
1521 return 1;
1522 return -1;
1523 }
1524 lb <<= 1;
1525 rb <<= 1;
1526 }
1527 return 0;
1528}
#define IS_HIGHBIT_SET(ch)
Definition: c.h:1154
b
int b
Definition: isn.c:74
x
int x
Definition: isn.c:75

References b, IS_HIGHBIT_SET, and x.

Referenced by inet_gist_consistent(), inet_inclusion_cmp(), inet_spg_choose(), inet_spg_consistent_bitmap(), network_cmp_internal(), network_overlap(), network_sub(), network_subeq(), network_sup(), and network_supeq().

◆ bitncommon()

int bitncommon ( const unsigned char *  l,
const unsigned char *  r,
int  n 
)

Definition at line 1536 of file network.c.

1537{
1538 int byte,
1539 nbits;
1540
1541 /* number of bits to examine in last byte */
1542 nbits = n % 8;
1543
1544 /* check whole bytes */
1545 for (byte = 0; byte < n / 8; byte++)
1546 {
1547 if (l[byte] != r[byte])
1548 {
1549 /* at least one bit in the last byte is not common */
1550 nbits = 7;
1551 break;
1552 }
1553 }
1554
1555 /* check bits in last partial byte */
1556 if (nbits != 0)
1557 {
1558 /* calculate diff of first non-matching bytes */
1559 unsigned int diff = l[byte] ^ r[byte];
1560
1561 /* compare the bits from the most to the least */
1562 while ((diff >> (8 - nbits)) != 0)
1563 nbits--;
1564 }
1565
1566 return (8 * byte) + nbits;
1567}

Referenced by calc_inet_union_params(), calc_inet_union_params_indexed(), inet_gist_penalty(), inet_hist_match_divider(), inet_merge(), inet_spg_choose(), and inet_spg_picksplit().

◆ cidr_set_masklen_internal()

inet * cidr_set_masklen_internal ( const inet *  src,
int  bits 
)

Definition at line 364 of file network.c.

365{
366 inet *dst = (inet *) palloc0(sizeof(inet));
367
368 ip_family(dst) = ip_family(src);
369 ip_bits(dst) = bits;
370
371 if (bits > 0)
372 {
373 Assert(bits <= ip_maxbits(dst));
374
375 /* Clone appropriate bytes of the address, leaving the rest 0 */
376 memcpy(ip_addr(dst), ip_addr(src), (bits + 7) / 8);
377
378 /* Clear any unwanted bits in the last partial byte */
379 if (bits % 8)
380 ip_addr(dst)[bits / 8] &= ~(0xFF >> (bits % 8));
381 }
382
383 /* Set varlena header correctly */
384 SET_INET_VARSIZE(dst);
385
386 return dst;
387}
Assert(PointerIsAligned(start, uint64))
void * palloc0(Size size)
Definition: mcxt.c:1395
Definition: inet.h:53
#define ip_addr(inetptr)
Definition: inet.h:77
#define SET_INET_VARSIZE(dst)
Definition: inet.h:86
#define ip_family(inetptr)
Definition: inet.h:71
#define ip_maxbits(inetptr)
Definition: inet.h:83
#define ip_bits(inetptr)
Definition: inet.h:74

References Assert(), ip_addr, ip_bits, ip_family, ip_maxbits, palloc0(), and SET_INET_VARSIZE.

Referenced by cidr_set_masklen(), inet_merge(), inet_spg_choose(), inet_spg_picksplit(), and inet_to_cidr().

◆ DatumGetInetP()

static inet * DatumGetInetP ( Datum  X )
inlinestatic

Definition at line 139 of file inet.h.

140{
141 return (inet *) PG_DETOAST_DATUM(X);
142}
#define PG_DETOAST_DATUM(datum)
Definition: fmgr.h:240

References PG_DETOAST_DATUM.

◆ DatumGetInetPP()

static inet * DatumGetInetPP ( Datum  X )
inlinestatic

Definition at line 123 of file inet.h.

124{
125 return (inet *) PG_DETOAST_DATUM_PACKED(X);
126}
#define PG_DETOAST_DATUM_PACKED(datum)
Definition: fmgr.h:248

References PG_DETOAST_DATUM_PACKED.

Referenced by convert_network_to_scalar(), inet_gist_compress(), inet_hist_value_sel(), inet_spg_choose(), inet_spg_consistent_bitmap(), inet_spg_inner_consistent(), inet_spg_leaf_consistent(), inet_spg_picksplit(), network_abbrev_convert(), and network_fast_cmp().

◆ DatumGetMacaddr8P()

static macaddr8 * DatumGetMacaddr8P ( Datum  X )
inlinestatic

Definition at line 163 of file inet.h.

164{
165 return (macaddr8 *) DatumGetPointer(X);
166}
static Pointer DatumGetPointer(Datum X)
Definition: postgres.h:322
Definition: inet.h:108

References DatumGetPointer().

Referenced by convert_network_to_scalar().

◆ DatumGetMacaddrP()

static macaddr * DatumGetMacaddrP ( Datum  X )
inlinestatic

Definition at line 147 of file inet.h.

148{
149 return (macaddr *) DatumGetPointer(X);
150}
Definition: inet.h:95

References DatumGetPointer().

Referenced by convert_network_to_scalar(), macaddr_abbrev_convert(), and macaddr_fast_cmp().

◆ InetPGetDatum()

static Datum InetPGetDatum ( const inet *  X )
inlinestatic

Definition at line 129 of file inet.h.

130{
131 return PointerGetDatum(X);
132}
static Datum PointerGetDatum(const void *X)
Definition: postgres.h:332

References PointerGetDatum().

Referenced by inet_gist_fetch(), inet_spg_choose(), inet_spg_leaf_consistent(), and inet_spg_picksplit().

◆ Macaddr8PGetDatum()

static Datum Macaddr8PGetDatum ( const macaddr8 *  X )
inlinestatic

Definition at line 169 of file inet.h.

170{
171 return PointerGetDatum(X);
172}

References PointerGetDatum().

Referenced by gbt_macad8key_cmp(), gbt_macaddr8_ssup_cmp(), and leftmostvalue_macaddr8().

◆ MacaddrPGetDatum()

static Datum MacaddrPGetDatum ( const macaddr *  X )
inlinestatic

Definition at line 153 of file inet.h.

154{
155 return PointerGetDatum(X);
156}

References PointerGetDatum().

Referenced by gbt_macaddr_ssup_cmp(), gbt_macadkey_cmp(), and leftmostvalue_macaddr().

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