mac.c
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:8k
- /*
- * PostgreSQL type definitions for MAC addresses.
- *
- * $Id: mac.c,v 1.8.2.1 1999/08/02 05:24:54 scrappy Exp $
- */
- #include "postgres.h"
- #include "utils/builtins.h"
- manufacturer manufacturers[] = {
- {0x00, 0x00, 0x0C, "Cisco"},
- {0x00, 0x00, 0x0E, "Fujitsu"},
- {0x00, 0x00, 0x0F, "NeXT"},
- {0x00, 0x00, 0x10, "Sytek"},
- {0x00, 0x00, 0x1D, "Cabletron"},
- {0x00, 0x00, 0x20, "DIAB"},
- {0x00, 0x00, 0x22, "Visual Technology"},
- {0x00, 0x00, 0x2A, "TRW"},
- {0x00, 0x00, 0x32, "GPT Limited"},
- {0x00, 0x00, 0x5A, "S & Koch"},
- {0x00, 0x00, 0x5E, "IANA"},
- {0x00, 0x00, 0x65, "Network General"},
- {0x00, 0x00, 0x6B, "MIPS"},
- {0x00, 0x00, 0x77, "MIPS"},
- {0x00, 0x00, 0x7A, "Ardent"},
- {0x00, 0x00, 0x89, "Cayman Systems"},
- {0x00, 0x00, 0x93, "Proteon"},
- {0x00, 0x00, 0x9F, "Ameristar Technology"},
- {0x00, 0x00, 0xA2, "Wellfleet"},
- {0x00, 0x00, 0xA3, "Network Application Technology"},
- {0x00, 0x00, 0xA6, "Network General"},
- {0x00, 0x00, 0xA7, "NCD"},
- {0x00, 0x00, 0xA9, "Network Systems"},
- {0x00, 0x00, 0xAA, "Xerox"},
- {0x00, 0x00, 0xB3, "CIMLinc"},
- {0x00, 0x00, 0xB7, "Dove Fastnet"},
- {0x00, 0x00, 0xBC, "Allen-Bradley"},
- {0x00, 0x00, 0xC0, "Western Digital"},
- {0x00, 0x00, 0xC5, "Farallon"},
- {0x00, 0x00, 0xC6, "Hewlett-Packard"},
- {0x00, 0x00, 0xC8, "Altos"},
- {0x00, 0x00, 0xC9, "Emulex"},
- {0x00, 0x00, 0xD7, "Dartmouth College"},
- {0x00, 0x00, 0xD8, "3Com (?)"},
- {0x00, 0x00, 0xDD, "Gould"},
- {0x00, 0x00, 0xDE, "Unigraph"},
- {0x00, 0x00, 0xE2, "Acer Counterpoint"},
- {0x00, 0x00, 0xEF, "Alantec"},
- {0x00, 0x00, 0xFD, "High Level Hardware"},
- {0x00, 0x01, 0x02, "BBN internal usage"},
- {0x00, 0x20, 0xAF, "3Com"},
- {0x00, 0x17, 0x00, "Kabel"},
- {0x00, 0x80, 0x64, "Wyse Technology"},
- {0x00, 0x80, 0x2B, "IMAC (?)"},
- {0x00, 0x80, 0x2D, "Xylogics, Inc."},
- {0x00, 0x80, 0x8C, "Frontier Software Development"},
- {0x00, 0x80, 0xC2, "IEEE 802.1 Committee"},
- {0x00, 0x80, 0xD3, "Shiva"},
- {0x00, 0xAA, 0x00, "Intel"},
- {0x00, 0xDD, 0x00, "Ungermann-Bass"},
- {0x00, 0xDD, 0x01, "Ungermann-Bass"},
- {0x02, 0x07, 0x01, "Racal InterLan"},
- {0x02, 0x04, 0x06, "BBN internal usage"},
- {0x02, 0x60, 0x86, "Satelcom MegaPac"},
- {0x02, 0x60, 0x8C, "3Com"},
- {0x02, 0xCF, 0x1F, "CMC"},
- {0x08, 0x00, 0x02, "3Com"},
- {0x08, 0x00, 0x03, "ACC"},
- {0x08, 0x00, 0x05, "Symbolics"},
- {0x08, 0x00, 0x08, "BBN"},
- {0x08, 0x00, 0x09, "Hewlett-Packard"},
- {0x08, 0x00, 0x0A, "Nestar Systems"},
- {0x08, 0x00, 0x0B, "Unisys"},
- {0x08, 0x00, 0x11, "Tektronix"},
- {0x08, 0x00, 0x14, "Excelan"},
- {0x08, 0x00, 0x17, "NSC"},
- {0x08, 0x00, 0x1A, "Data General"},
- {0x08, 0x00, 0x1B, "Data General"},
- {0x08, 0x00, 0x1E, "Apollo"},
- {0x08, 0x00, 0x20, "Sun"},
- {0x08, 0x00, 0x22, "NBI"},
- {0x08, 0x00, 0x25, "CDC"},
- {0x08, 0x00, 0x26, "Norsk Data"},
- {0x08, 0x00, 0x27, "PCS Computer Systems GmbH"},
- {0x08, 0x00, 0x28, "Texas Instruments"},
- {0x08, 0x00, 0x2B, "DEC"},
- {0x08, 0x00, 0x2E, "Metaphor"},
- {0x08, 0x00, 0x2F, "Prime Computer"},
- {0x08, 0x00, 0x36, "Intergraph"},
- {0x08, 0x00, 0x37, "Fujitsu-Xerox"},
- {0x08, 0x00, 0x38, "Bull"},
- {0x08, 0x00, 0x39, "Spider Systems"},
- {0x08, 0x00, 0x41, "DCA Digital Comm. Assoc."},
- {0x08, 0x00, 0x45, "Xylogics (?)"},
- {0x08, 0x00, 0x46, "Sony"},
- {0x08, 0x00, 0x47, "Sequent"},
- {0x08, 0x00, 0x49, "Univation"},
- {0x08, 0x00, 0x4C, "Encore"},
- {0x08, 0x00, 0x4E, "BICC"},
- {0x08, 0x00, 0x56, "Stanford University"},
- {0x08, 0x00, 0x58, "DECsystem 20 (?)"},
- {0x08, 0x00, 0x5A, "IBM"},
- {0x08, 0x00, 0x67, "Comdesign"},
- {0x08, 0x00, 0x68, "Ridge"},
- {0x08, 0x00, 0x69, "Silicon Graphics"},
- {0x08, 0x00, 0x6E, "Concurrent"},
- {0x08, 0x00, 0x75, "DDE"},
- {0x08, 0x00, 0x7C, "Vitalink"},
- {0x08, 0x00, 0x80, "XIOS"},
- {0x08, 0x00, 0x86, "Imagen/QMS"},
- {0x08, 0x00, 0x87, "Xyplex"},
- {0x08, 0x00, 0x89, "Kinetics"},
- {0x08, 0x00, 0x8B, "Pyramid"},
- {0x08, 0x00, 0x8D, "XyVision"},
- {0x08, 0x00, 0x90, "Retix Inc"},
- {0x48, 0x44, 0x53, "HDS (?)"},
- {0x80, 0x00, 0x10, "AT&T"},
- {0xAA, 0x00, 0x00, "DEC"},
- {0xAA, 0x00, 0x01, "DEC"},
- {0xAA, 0x00, 0x02, "DEC"},
- {0xAA, 0x00, 0x03, "DEC"},
- {0xAA, 0x00, 0x04, "DEC"},
- {0x00, 0x00, 0x00, NULL}
- };
- /*
- * Utility macros used for sorting and comparing:
- */
- #define hibits(addr)
- ((unsigned long)((addr->a<<16)|(addr->b<<8)|(addr->c)))
- #define lobits(addr)
- ((unsigned long)((addr->c<<16)|(addr->e<<8)|(addr->f)))
- /*
- * MAC address reader. Accepts several common notations.
- */
- macaddr *
- macaddr_in(char *str)
- {
- int a,
- b,
- c,
- d,
- e,
- f;
- macaddr *result;
- int count;
- if (strlen(str) > 0)
- {
- count = sscanf(str, "%x:%x:%x:%x:%x:%x", &a, &b, &c, &d, &e, &f);
- if (count != 6)
- count = sscanf(str, "%x-%x-%x-%x-%x-%x", &a, &b, &c, &d, &e, &f);
- if (count != 6)
- count = sscanf(str, "%2x%2x%2x:%2x%2x%2x", &a, &b, &c, &d, &e, &f);
- if (count != 6)
- count = sscanf(str, "%2x%2x%2x-%2x%2x%2x", &a, &b, &c, &d, &e, &f);
- if (count != 6)
- count = sscanf(str, "%2x%2x.%2x%2x.%2x%2x", &a, &b, &c, &d, &e, &f);
- if (count != 6)
- elog(ERROR, "macaddr_in: error in parsing "%s"", str);
- if ((a < 0) || (a > 255) || (b < 0) || (b > 255) ||
- (c < 0) || (c > 255) || (d < 0) || (d > 255) ||
- (e < 0) || (e > 255) || (f < 0) || (f > 255))
- elog(ERROR, "macaddr_in: illegal address "%s"", str);
- }
- else
- {
- a = b = c = d = e = f = 0; /* special case for missing
- * address */
- }
- result = (macaddr *) palloc(sizeof(macaddr));
- result->a = a;
- result->b = b;
- result->c = c;
- result->d = d;
- result->e = e;
- result->f = f;
- return (result);
- }
- /*
- * MAC address output function. Fixed format.
- */
- char *
- macaddr_out(macaddr *addr)
- {
- char *result;
- if (addr == NULL)
- return (NULL);
- result = (char *) palloc(32);
- if ((hibits(addr) > 0) || (lobits(addr) > 0))
- {
- sprintf(result, "%02x:%02x:%02x:%02x:%02x:%02x",
- addr->a, addr->b, addr->c, addr->d, addr->e, addr->f);
- }
- else
- {
- result[0] = 0; /* special case for missing address */
- }
- return (result);
- }
- /*
- * Boolean tests.
- */
- bool
- macaddr_lt(macaddr *a1, macaddr *a2)
- {
- if (!PointerIsValid(a1) || !PointerIsValid(a2))
- return FALSE;
- return ((hibits(a1) < hibits(a2)) ||
- ((hibits(a1) == hibits(a2)) && lobits(a1) < lobits(a2)));
- }
- bool
- macaddr_le(macaddr *a1, macaddr *a2)
- {
- if (!PointerIsValid(a1) || !PointerIsValid(a2))
- return FALSE;
- return ((hibits(a1) < hibits(a2)) ||
- ((hibits(a1) == hibits(a2)) && lobits(a1) <= lobits(a2)));
- }
- bool
- macaddr_eq(macaddr *a1, macaddr *a2)
- {
- if (!PointerIsValid(a1) || !PointerIsValid(a2))
- return FALSE;
- return ((hibits(a1) == hibits(a2)) && (lobits(a1) == lobits(a2)));
- }
- bool
- macaddr_ge(macaddr *a1, macaddr *a2)
- {
- if (!PointerIsValid(a1) || !PointerIsValid(a2))
- return FALSE;
- return ((hibits(a1) > hibits(a2)) ||
- ((hibits(a1) == hibits(a2)) && lobits(a1) >= lobits(a2)));
- }
- bool
- macaddr_gt(macaddr *a1, macaddr *a2)
- {
- if (!PointerIsValid(a1) || !PointerIsValid(a2))
- return FALSE;
- return ((hibits(a1) > hibits(a2)) ||
- ((hibits(a1) == hibits(a2)) && lobits(a1) > lobits(a2)));
- }
- bool
- macaddr_ne(macaddr *a1, macaddr *a2)
- {
- if (!PointerIsValid(a1) || !PointerIsValid(a2))
- return FALSE;
- return ((hibits(a1) != hibits(a2)) || (lobits(a1) != lobits(a2)));
- }
- /*
- * Comparison function for sorting:
- */
- int4
- macaddr_cmp(macaddr *a1, macaddr *a2)
- {
- if (hibits(a1) < hibits(a2))
- return -1;
- else if (hibits(a1) > hibits(a2))
- return 1;
- else if (lobits(a1) < lobits(a2))
- return -1;
- else if (lobits(a1) > lobits(a2))
- return 1;
- else
- return 0;
- }
- /*
- * The special manufacturer fetching function. See "mac.h".
- */
- text *
- macaddr_manuf(macaddr *addr)
- {
- manufacturer *manuf;
- int length;
- text *result;
- if (!PointerIsValid(addr))
- return NULL;
- for (manuf = manufacturers; manuf->name != NULL; manuf++)
- {
- if ((manuf->a == addr->a) &&
- (manuf->b == addr->b) &&
- (manuf->c == addr->c))
- break;
- }
- if (manuf->name == NULL)
- {
- result = palloc(VARHDRSZ + 1);
- memset(result, 0, VARHDRSZ + 1);
- VARSIZE(result) = VARHDRSZ + 1;
- }
- else
- {
- length = strlen(manuf->name) + 1;
- result = palloc(length + VARHDRSZ);
- memset(result, 0, length + VARHDRSZ);
- VARSIZE(result) = length + VARHDRSZ;
- memcpy(VARDATA(result), manuf->name, length);
- }
- return result;
- }