aboutsummaryrefslogtreecommitdiff
path: root/nis/nis_findserv.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2000-04-22 03:58:39 +0000
committerUlrich Drepper <drepper@redhat.com>2000-04-22 03:58:39 +0000
commit54eb84d0c769dbd974b21ffd9d41d48aff203a15 (patch)
tree62e967244da950de59f2ebb8ed4b9958136bba71 /nis/nis_findserv.c
parente88e03a0451bba8f20faadcd5f214810770824f1 (diff)
downloadglibc-54eb84d0c769dbd974b21ffd9d41d48aff203a15.tar
glibc-54eb84d0c769dbd974b21ffd9d41d48aff203a15.tar.gz
glibc-54eb84d0c769dbd974b21ffd9d41d48aff203a15.tar.bz2
glibc-54eb84d0c769dbd974b21ffd9d41d48aff203a15.zip
Update.
* nis/nis_findserv.c (__nis_findfastest): Improve memory handling. * nis/nis_print_group_entry.c (nis_print_group_entry): Use alloca instead of malloc. * nis/nis_subr.c: Use __builtin_expect. * nis/ypclnt.c: Likewise. * nis/nis_getservlist.c: Likewise. * nis/nis_creategroup.c: Likewise.
Diffstat (limited to 'nis/nis_findserv.c')
-rw-r--r--nis/nis_findserv.c44
1 files changed, 25 insertions, 19 deletions
diff --git a/nis/nis_findserv.c b/nis/nis_findserv.c
index 5b6a74981c..2659878e20 100644
--- a/nis/nis_findserv.c
+++ b/nis/nis_findserv.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
@@ -131,7 +131,7 @@ __nis_findfastest (dir_binding *bind)
#else
const struct timeval TIMEOUT50 = {5, 0};
const struct timeval TIMEOUT00 = {0, 0};
- struct findserv_req **pings;
+ struct findserv_req *pings;
struct sockaddr_in sin, saved_sin;
int found = -1;
u_int32_t xid_seed, xid_lookup;
@@ -145,9 +145,12 @@ __nis_findfastest (dir_binding *bind)
pings_max = bind->server_len * 2; /* Reserve a little bit more memory
for multihomed hosts */
pings_count = 0;
- pings = malloc (sizeof (struct findserv_req *) * pings_max);
+ pings = malloc (sizeof (struct findserv_req) * pings_max);
xid_seed = (u_int32_t) (time (NULL) ^ getpid ());
+ if (__builtin_expect (pings == NULL, 0))
+ return -1;
+
memset (&sin, '\0', sizeof (sin));
sin.sin_family = AF_INET;
for (i = 0; i < bind->server_len; i++)
@@ -169,17 +172,24 @@ __nis_findfastest (dir_binding *bind)
if (pings_count >= pings_max)
{
+ struct findserv_req *new_pings;
+
pings_max += 10;
- pings = realloc (pings, sizeof (struct findserv_req) *
- pings_max);
+ new_pings = realloc (pings, sizeof (struct findserv_req) *
+ pings_max);
+ if (__builtin_expect (new_pings == NULL, 0))
+ {
+ free (pings);
+ return -1;
+ }
+ pings = new_pings;
}
- pings[pings_count] = calloc (1, sizeof (struct findserv_req));
- memcpy ((char *) &pings[pings_count]->sin, (char *) &sin,
+ memcpy ((char *) &pings[pings_count].sin, (char *) &sin,
sizeof (sin));
memcpy ((char *)&saved_sin, (char *)&sin, sizeof(sin));
- pings[pings_count]->xid = xid_seed;
- pings[pings_count]->server_nr = i;
- pings[pings_count]->server_ep = j;
+ pings[pings_count].xid = xid_seed;
+ pings[pings_count].server_nr = i;
+ pings[pings_count].server_ep = j;
++xid_seed;
++pings_count;
}
@@ -197,8 +207,6 @@ __nis_findfastest (dir_binding *bind)
if (clnt == NULL)
{
close (sock);
- for (i = 0; i < pings_count; ++i)
- free (pings[i]);
free (pings);
return -1;
}
@@ -212,8 +220,8 @@ __nis_findfastest (dir_binding *bind)
for (i = 0; i < pings_count; ++i)
{
/* clntudp_call() will increment, subtract one */
- *((u_int32_t *) (cu->cu_outbuf)) = pings[i]->xid - 1;
- memcpy ((char *) &cu->cu_raddr, (char *) &pings[i]->sin,
+ *((u_int32_t *) (cu->cu_outbuf)) = pings[i].xid - 1;
+ memcpy ((char *) &cu->cu_raddr, (char *) &pings[i].sin,
sizeof (struct sockaddr_in));
/* Transmit to NULLPROC, return immediately. */
clnt_call (clnt, NULLPROC, (xdrproc_t) xdr_void, (caddr_t) foo,
@@ -228,10 +236,10 @@ __nis_findfastest (dir_binding *bind)
xid_lookup = *((u_int32_t *) (cu->cu_inbuf));
for (i = 0; i < pings_count; i++)
{
- if (pings[i]->xid == xid_lookup)
+ if (pings[i].xid == xid_lookup)
{
- bind->server_used = pings[i]->server_nr;
- bind->current_ep = pings[i]->server_ep;
+ bind->server_used = pings[i].server_nr;
+ bind->current_ep = pings[i].server_ep;
found = 1;
}
}
@@ -240,8 +248,6 @@ __nis_findfastest (dir_binding *bind)
clnt_destroy (clnt);
close (sock);
- for (i = 0; i < pings_count; ++i)
- free (pings[i]);
free (pings);
return found;