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* nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent): 

Significant cleanups.  Correct adjustment for pointer array
	Likewise.
This commit is contained in:
Ulrich Drepper 2006-04-15 17:27:11 +00:00
parent f514f94584
commit 38c2f8bc62
2 changed files with 30 additions and 33 deletions
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4
ChangeLog
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@ -1,7 +1,9 @@
2006-04-15 Ulrich Drepper <drepper@redhat.com>
* nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent):
Significant cleanups. Correct adjustment for pointer array
* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent):
Significant cleanups. Correct adjustment for pointer array.
Likewise.
* nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_parse_hostent):
Likewise.

59
nis/nss_nisplus/nisplus-proto.c
View File

@ -35,20 +35,20 @@ static nis_result *result;
static nis_name tablename_val;
static u_long tablename_len;
#define NISENTRYVAL(idx,col,res) \
((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
#define NISENTRYVAL(idx, col, res) \
(NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_val)
#define NISENTRYLEN(idx, col, res) \
(NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_len)
#define NISENTRYLEN(idx,col,res) \
((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
static int
_nss_nisplus_parse_protoent (nis_result * result, struct protoent *proto,
_nss_nisplus_parse_protoent (nis_result *result, struct protoent *proto,
char *buffer, size_t buflen, int *errnop)
{
char *first_unused = buffer;
size_t room_left = buflen;
unsigned int i;
char *p, *line;
if (result == NULL)
return 0;
@ -71,41 +71,41 @@ _nss_nisplus_parse_protoent (nis_result * result, struct protoent *proto,
NISENTRYLEN (0, 0, result));
first_unused[NISENTRYLEN (0, 0, result)] = '\0';
proto->p_name = first_unused;
room_left -= (strlen (first_unused) +1);
first_unused += strlen (first_unused) +1;
size_t len = strlen (first_unused) + 1;
room_left -= len;
first_unused += len;
if (NISENTRYLEN (0, 2, result) + 1 > room_left)
goto no_more_room;
proto->p_proto = atoi (NISENTRYVAL (0, 2, result));
p = first_unused;
line = p;
char *line = first_unused;
for (i = 0; i < result->objects.objects_len; ++i)
{
if (strcmp (NISENTRYVAL (i, 1, result), proto->p_name) != 0)
{
if (NISENTRYLEN (i, 1, result) + 2 > room_left)
goto no_more_room;
*p++ = ' ';
p = __stpncpy (p, NISENTRYVAL (i, 1, result),
NISENTRYLEN (i, 1, result));
*p = '\0';
room_left -= (NISENTRYLEN (i, 1, result) + 1);
*first_unused++ = ' ';
first_unused = __stpncpy (first_unused, NISENTRYVAL (i, 1, result),
NISENTRYLEN (i, 1, result));
room_left -= NISENTRYLEN (i, 1, result) + 1;
}
}
*p++ = '\0';
first_unused = p;
*first_unused++ = '\0';
/* Adjust the pointer so it is aligned for
storing pointers. */
first_unused += __alignof__ (char *) - 1;
first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
proto->p_aliases = (char **) first_unused;
if (room_left < sizeof (char *))
size_t adjust = ((__alignof__ (char *)
- (first_unused - (char *) 0) % __alignof__ (char *))
% __alignof__ (char *));
if (room_left < adjust + sizeof (char *))
goto no_more_room;
first_unused += adjust;
room_left -= adjust;
proto->p_aliases = (char **) first_unused;
/* For the terminating NULL pointer. */
room_left -= sizeof (char *);
proto->p_aliases[0] = NULL;
i = 0;
while (*line != '\0')
@ -120,20 +120,15 @@ _nss_nisplus_parse_protoent (nis_result * result, struct protoent *proto,
goto no_more_room;
room_left -= sizeof (char *);
proto->p_aliases[i] = line;
proto->p_aliases[i++] = line;
while (*line != '\0' && *line != ' ')
++line;
if (*line == ' ')
{
*line = '\0';
++line;
++i;
}
else
proto->p_aliases[i+1] = NULL;
*line++ = '\0';
}
proto->p_aliases[i] = NULL;
return 1;
}