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Cleanup of NULL in inet types.

This commit is contained in:
Bruce Momjian 1999-03-22 05:00:57 +00:00
parent 419b91c058
commit 53d52a685a
2 changed files with 82 additions and 72 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
src/backend/utils/adt/mac.c
View File

@ -1,7 +1,7 @@
/*
* PostgreSQL type definitions for MAC addresses.
*
* $Id: mac.c,v 1.6 1998/10/26 01:01:36 tgl Exp $
* $Id: mac.c,v 1.7 1999/03/22 05:00:57 momjian Exp $
*/
#include <stdio.h>
@ -156,7 +156,6 @@ macaddr_in(char *str)
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);
@ -168,18 +167,12 @@ macaddr_in(char *str)
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);
return (NULL);
}
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);
return (NULL);
}
}
else
{
@ -232,6 +225,8 @@ macaddr_out(macaddr *addr)
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)));
}
@ -239,6 +234,8 @@ macaddr_lt(macaddr *a1, macaddr *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)));
}
@ -246,12 +243,16 @@ macaddr_le(macaddr *a1, macaddr *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)));
}
@ -259,6 +260,8 @@ macaddr_ge(macaddr *a1, macaddr *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)));
}
@ -266,6 +269,8 @@ macaddr_gt(macaddr *a1, macaddr *a2)
bool
macaddr_ne(macaddr *a1, macaddr *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return ((hibits(a1) != hibits(a2)) || (lobits(a1) != lobits(a2)));
}
@ -299,6 +304,9 @@ macaddr_manuf(macaddr *addr)
int length;
text *result;
if (!PointerIsValid(addr))
return NULL;
for (manuf = manufacturers; manuf->name != NULL; manuf++)
{
if ((manuf->a == addr->a) &&

130
src/backend/utils/adt/network.c
View File

@ -3,7 +3,7 @@
* is for IP V4 CIDR notation, but prepared for V6: just
* add the necessary bits where the comments indicate.
*
* $Id: network.c,v 1.6 1999/02/24 03:17:05 momjian Exp $
* $Id: network.c,v 1.7 1999/03/22 05:00:57 momjian Exp $
* Jon Postel RIP 16 Oct 1998
*/
@ -50,23 +50,21 @@ network_in(char *src, int type)
int bits;
inet *dst;
if (!src)
return NULL;
dst = palloc(VARHDRSZ + sizeof(inet_struct));
if (dst == NULL)
{
elog(ERROR, "unable to allocate memory in network_in()");
return NULL;
}
/* First, try for an IP V4 address: */
ip_family(dst) = AF_INET;
bits = inet_net_pton(ip_family(dst), src, &ip_v4addr(dst),
type ? ip_addrsize(dst) : -1);
if ((bits < 0) || (bits > 32))
{
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "could not parse \"%s\"", src);
pfree(dst);
return NULL;
}
VARSIZE(dst) = VARHDRSZ
+ ((char *) &ip_v4addr(dst) - (char *) VARDATA(dst))
+ ip_addrsize(dst);
@ -110,23 +108,16 @@ inet_out(inet *src)
tmp, sizeof(tmp));
if (dst == NULL)
{
elog(ERROR, "unable to print address (%s)", strerror(errno));
return (NULL);
}
}
else
{
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "unknown address family (%d)", ip_family(src));
return NULL;
}
dst = palloc(strlen(tmp) + 1);
if (dst == NULL)
{
elog(ERROR, "unable to allocate memory in inet_out()");
return NULL;
}
strcpy(dst, tmp);
return dst;
}
@ -146,6 +137,8 @@ cidr_out(inet *src)
bool
network_lt(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET))
{
int order = v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a2));
@ -157,19 +150,23 @@ network_lt(inet *a1, inet *a2)
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "cannot compare address families %d and %d",
ip_family(a1), ip_family(a2));
return (FALSE);
return FALSE;
}
}
bool
network_le(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return (network_lt(a1, a2) || network_eq(a1, a2));
}
bool
network_eq(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET))
{
return ((ip_bits(a1) == ip_bits(a2))
@ -180,19 +177,23 @@ network_eq(inet *a1, inet *a2)
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "cannot compare address families %d and %d",
ip_family(a1), ip_family(a2));
return (FALSE);
return FALSE;
}
}
bool
network_ge(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return (network_gt(a1, a2) || network_eq(a1, a2));
}
bool
network_gt(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET))
{
int order = v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a2));
@ -204,19 +205,24 @@ network_gt(inet *a1, inet *a2)
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "cannot compare address families %d and %d",
ip_family(a1), ip_family(a2));
return (FALSE);
return FALSE;
}
}
bool
network_ne(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return (!network_eq(a1, a2));
}
bool
network_sub(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return NULL;
if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET))
{
return ((ip_bits(a1) > ip_bits(a2))
@ -227,13 +233,16 @@ network_sub(inet *a1, inet *a2)
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "cannot compare address families %d and %d",
ip_family(a1), ip_family(a2));
return (FALSE);
return FALSE;
}
}
bool
network_subeq(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return NULL;
if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET))
{
return ((ip_bits(a1) >= ip_bits(a2))
@ -244,13 +253,16 @@ network_subeq(inet *a1, inet *a2)
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "cannot compare address families %d and %d",
ip_family(a1), ip_family(a2));
return (FALSE);
return FALSE;
}
}
bool
network_sup(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return NULL;
if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET))
{
return ((ip_bits(a1) < ip_bits(a2))
@ -261,13 +273,16 @@ network_sup(inet *a1, inet *a2)
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "cannot compare address families %d and %d",
ip_family(a1), ip_family(a2));
return (FALSE);
return FALSE;
}
}
bool
network_supeq(inet *a1, inet *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return NULL;
if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET))
{
return ((ip_bits(a1) <= ip_bits(a2))
@ -278,7 +293,7 @@ network_supeq(inet *a1, inet *a2)
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "cannot compare address families %d and %d",
ip_family(a1), ip_family(a2));
return (FALSE);
return FALSE;
}
}
@ -304,36 +319,29 @@ network_host(inet *ip)
char *ptr,
tmp[sizeof("255.255.255.255/32")];
if (ip_type(ip))
{
elog(ERROR, "CIDR type has no host part");
if (!PointerIsValid(ip))
return NULL;
}
if (ip_type(ip))
elog(ERROR, "CIDR type has no host part");
if (ip_family(ip) == AF_INET)
{
/* It's an IP V4 address: */
if (inet_net_ntop(AF_INET, &ip_v4addr(ip), 32, tmp, sizeof(tmp)) == NULL)
{
elog(ERROR, "unable to print host (%s)", strerror(errno));
return (NULL);
}
}
else
{
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "unknown address family (%d)", ip_family(ip));
return (NULL);
}
if ((ptr = strchr(tmp, '/')) != NULL)
*ptr = 0;
len = VARHDRSZ + strlen(tmp) + 1;
ret = palloc(len);
if (ret == NULL)
{
elog(ERROR, "unable to allocate memory in network_host()");
return (NULL);
}
VARSIZE(ret) = len;
strcpy(VARDATA(ret), tmp);
return (ret);
@ -342,6 +350,9 @@ network_host(inet *ip)
int4
network_masklen(inet *ip)
{
if (!PointerIsValid(ip))
return 0;
return ip_bits(ip);
}
@ -353,6 +364,9 @@ network_broadcast(inet *ip)
char *ptr,
tmp[sizeof("255.255.255.255/32")];
if (!PointerIsValid(ip))
return NULL;
if (ip_family(ip) == AF_INET)
{
/* It's an IP V4 address: */
@ -364,26 +378,20 @@ network_broadcast(inet *ip)
addr = htonl(ntohl(ip_v4addr(ip)) | mask);
if (inet_net_ntop(AF_INET, &addr, 32, tmp, sizeof(tmp)) == NULL)
{
elog(ERROR, "unable to print address (%s)", strerror(errno));
return (NULL);
}
}
else
{
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "unknown address family (%d)", ip_family(ip));
return (NULL);
}
if ((ptr = strchr(tmp, '/')) != NULL)
*ptr = 0;
len = VARHDRSZ + strlen(tmp) + 1;
ret = palloc(len);
if (ret == NULL)
{
elog(ERROR, "unable to allocate memory in network_broadcast()");
return (NULL);
}
VARSIZE(ret) = len;
strcpy(VARDATA(ret), tmp);
return (ret);
@ -396,30 +404,27 @@ network_network(inet *ip)
int len;
char tmp[sizeof("255.255.255.255/32")];
if (!PointerIsValid(ip))
return NULL;
if (ip_family(ip) == AF_INET)
{
/* It's an IP V4 address: */
int addr = htonl(ntohl(ip_v4addr(ip)) & (0xffffffff << (32 - ip_bits(ip))));
if (inet_cidr_ntop(AF_INET, &addr, ip_bits(ip), tmp, sizeof(tmp)) == NULL)
{
elog(ERROR, "unable to print network (%s)", strerror(errno));
return (NULL);
}
}
else
{
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "unknown address family (%d)", ip_family(ip));
return (NULL);
}
len = VARHDRSZ + strlen(tmp) + 1;
ret = palloc(len);
if (ret == NULL)
{
elog(ERROR, "unable to allocate memory in network_network()");
return (NULL);
}
VARSIZE(ret) = len;
strcpy(VARDATA(ret), tmp);
return (ret);
@ -433,32 +438,29 @@ network_netmask(inet *ip)
char *ptr,
tmp[sizeof("255.255.255.255/32")];
if (!PointerIsValid(ip))
return NULL;
if (ip_family(ip) == AF_INET)
{
/* It's an IP V4 address: */
int addr = htonl((-1 << (32 - ip_bits(ip))) & 0xffffffff);
if (inet_net_ntop(AF_INET, &addr, 32, tmp, sizeof(tmp)) == NULL)
{
elog(ERROR, "unable to print netmask (%s)", strerror(errno));
return (NULL);
}
}
else
{
/* Go for an IPV6 address here, before faulting out: */
elog(ERROR, "unknown address family (%d)", ip_family(ip));
return (NULL);
}
if ((ptr = strchr(tmp, '/')) != NULL)
*ptr = 0;
len = VARHDRSZ + strlen(tmp) + 1;
ret = palloc(len);
if (ret == NULL)
{
elog(ERROR, "unable to allocate memory in network_netmask()");
return (NULL);
}
VARSIZE(ret) = len;
strcpy(VARDATA(ret), tmp);
return (ret);