diff options
Diffstat (limited to 'src/backend/utils/adt/mac.c')
| -rw-r--r-- | src/backend/utils/adt/mac.c | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/src/backend/utils/adt/mac.c b/src/backend/utils/adt/mac.c deleted file mode 100644 index 832c5cb4f84..00000000000 --- a/src/backend/utils/adt/mac.c +++ /dev/null @@ -1,257 +0,0 @@ -/* - * PostgreSQL type definitions for MAC addresses. - * - * $Header: /cvsroot/pgsql/src/backend/utils/adt/mac.c,v 1.24 2002/06/17 07:00:26 momjian Exp $ - */ - -#include "postgres.h" - -#include "access/hash.h" -#include "utils/builtins.h" -#include "utils/inet.h" - -/* - * 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)->d<<16)|((addr)->e<<8)|((addr)->f))) - -/* - * MAC address reader. Accepts several common notations. - */ - -Datum -macaddr_in(PG_FUNCTION_ARGS) -{ - char *str = PG_GETARG_CSTRING(0); - macaddr *result; - int a, - b, - c, - d, - e, - f; - int count; - - 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) - 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); - - result = (macaddr *) palloc(sizeof(macaddr)); - - result->a = a; - result->b = b; - result->c = c; - result->d = d; - result->e = e; - result->f = f; - - PG_RETURN_MACADDR_P(result); -} - -/* - * MAC address output function. Fixed format. - */ - -Datum -macaddr_out(PG_FUNCTION_ARGS) -{ - macaddr *addr = PG_GETARG_MACADDR_P(0); - char *result; - - result = (char *) palloc(32); - - sprintf(result, "%02x:%02x:%02x:%02x:%02x:%02x", - addr->a, addr->b, addr->c, addr->d, addr->e, addr->f); - - PG_RETURN_CSTRING(result); -} - -/* - * Convert macaddr to text data type. - */ - -Datum -macaddr_text(PG_FUNCTION_ARGS) -{ - /* Input is a macaddr, but may as well leave it in Datum form */ - Datum addr = PG_GETARG_DATUM(0); - text *result; - char *str; - int len; - - str = DatumGetCString(DirectFunctionCall1(macaddr_out, addr)); - - len = (strlen(str) + VARHDRSZ); - - result = palloc(len); - - VARATT_SIZEP(result) = len; - memmove(VARDATA(result), str, (len - VARHDRSZ)); - - pfree(str); - - PG_RETURN_TEXT_P(result); -} - -/* - * Convert text to macaddr data type. - */ - -Datum -text_macaddr(PG_FUNCTION_ARGS) -{ - text *addr = PG_GETARG_TEXT_P(0); - Datum result; - char str[18]; - int len; - - len = (VARSIZE(addr) - VARHDRSZ); - if (len >= 18) - elog(ERROR, "Text is too long to convert to MAC address"); - - memcpy(str, VARDATA(addr), len); - *(str + len) = '\0'; - - result = DirectFunctionCall1(macaddr_in, CStringGetDatum(str)); - - return (result); -} - -/* - * Comparison function for sorting: - */ - -static int32 -macaddr_cmp_internal(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; -} - -Datum -macaddr_cmp(PG_FUNCTION_ARGS) -{ - macaddr *a1 = PG_GETARG_MACADDR_P(0); - macaddr *a2 = PG_GETARG_MACADDR_P(1); - - PG_RETURN_INT32(macaddr_cmp_internal(a1, a2)); -} - -/* - * Boolean comparisons. - */ - -Datum -macaddr_lt(PG_FUNCTION_ARGS) -{ - macaddr *a1 = PG_GETARG_MACADDR_P(0); - macaddr *a2 = PG_GETARG_MACADDR_P(1); - - PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) < 0); -} - -Datum -macaddr_le(PG_FUNCTION_ARGS) -{ - macaddr *a1 = PG_GETARG_MACADDR_P(0); - macaddr *a2 = PG_GETARG_MACADDR_P(1); - - PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) <= 0); -} - -Datum -macaddr_eq(PG_FUNCTION_ARGS) -{ - macaddr *a1 = PG_GETARG_MACADDR_P(0); - macaddr *a2 = PG_GETARG_MACADDR_P(1); - - PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) == 0); -} - -Datum -macaddr_ge(PG_FUNCTION_ARGS) -{ - macaddr *a1 = PG_GETARG_MACADDR_P(0); - macaddr *a2 = PG_GETARG_MACADDR_P(1); - - PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) >= 0); -} - -Datum -macaddr_gt(PG_FUNCTION_ARGS) -{ - macaddr *a1 = PG_GETARG_MACADDR_P(0); - macaddr *a2 = PG_GETARG_MACADDR_P(1); - - PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) > 0); -} - -Datum -macaddr_ne(PG_FUNCTION_ARGS) -{ - macaddr *a1 = PG_GETARG_MACADDR_P(0); - macaddr *a2 = PG_GETARG_MACADDR_P(1); - - PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) != 0); -} - -/* - * Support function for hash indexes on macaddr. - */ -Datum -hashmacaddr(PG_FUNCTION_ARGS) -{ - macaddr *key = PG_GETARG_MACADDR_P(0); - - return hash_any((unsigned char *) key, sizeof(macaddr)); -} - -/* - * Truncation function to allow comparing mac manufacturers. - * From suggestion by Alex Pilosov <alex@pilosoft.com> - */ -Datum -macaddr_trunc(PG_FUNCTION_ARGS) -{ - macaddr *addr = PG_GETARG_MACADDR_P(0); - macaddr *result; - - result = (macaddr *) palloc(sizeof(macaddr)); - - result->a = addr->a; - result->b = addr->b; - result->c = addr->c; - result->d = 0; - result->e = 0; - result->f = 0; - - PG_RETURN_MACADDR_P(result); -} |