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Diffstat (limited to 'nscd/pwdcache.c')
-rw-r--r--nscd/pwdcache.c42
1 files changed, 12 insertions, 30 deletions
diff --git a/nscd/pwdcache.c b/nscd/pwdcache.c
index a52c7e3355..2f78884d88 100644
--- a/nscd/pwdcache.c
+++ b/nscd/pwdcache.c
@@ -1,5 +1,5 @@
/* Cache handling for passwd lookup.
- Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1998-2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
@@ -18,6 +18,7 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <alloca.h>
#include <errno.h>
#include <error.h>
#include <pwd.h>
@@ -101,7 +102,7 @@ cache_addpw (struct database *db, int fd, request_header *req, void *key,
total = sizeof (notfound);
- written = writev (fd, &iov_notfound, 1);
+ written = TEMP_FAILURE_RETRY (writev (fd, &iov_notfound, 1));
copy = malloc (req->key_len);
if (copy == NULL)
@@ -223,10 +224,11 @@ addpwbyname (struct database *db, int fd, request_header *req,
{
char *old_buffer = buffer;
errno = 0;
- buflen += 1024;
+#define INCR 1024
if (__builtin_expect (buflen > 32768, 0))
{
+ buflen += INCR;
buffer = (char *) realloc (use_malloc ? buffer : NULL, buflen);
if (buffer == NULL)
{
@@ -240,19 +242,9 @@ addpwbyname (struct database *db, int fd, request_header *req,
use_malloc = true;
}
else
- {
- buffer = (char *) alloca (buflen);
-#if _STACK_GROWS_DOWN
- if (buffer + buflen == old_buffer)
- buflen = 2 * buflen - 1024;
-#elif _STACK_GROWS_UP
- if (old_buffer + buflen - 1024 == buffer)
- {
- buffer = old_buffer;
- buflen = 2 * buflen - 1024;
- }
-#endif
- }
+ /* Allocate a new buffer on the stack. If possible combine it
+ with the previously allocated buffer. */
+ buffer = (char *) extend_alloca (buffer, buflen, buflen + INCR);
}
if (secure[pwddb])
@@ -305,10 +297,10 @@ addpwbyuid (struct database *db, int fd, request_header *req,
{
char *old_buffer = buffer;
errno = 0;
- buflen += 1024;
if (__builtin_expect (buflen > 32768, 0))
{
+ buflen += 1024;
buffer = (char *) realloc (use_malloc ? buffer : NULL, buflen);
if (buffer == NULL)
{
@@ -322,19 +314,9 @@ addpwbyuid (struct database *db, int fd, request_header *req,
use_malloc = true;
}
else
- {
- buffer = (char *) alloca (buflen);
-#if _STACK_GROWS_DOWN
- if (buffer + buflen == old_buffer)
- buflen = 2 * buflen - 1024;
-#elif _STACK_GROWS_UP
- if (old_buffer + buflen - 1024 == buffer)
- {
- buffer = old_buffer;
- buflen = 2 * buflen - 1024;
- }
-#endif
- }
+ /* Allocate a new buffer on the stack. If possible combine it
+ with the previously allocated buffer. */
+ buffer = (char *) extend_alloca (buffer, buflen, buflen + INCR);
}
if (secure[pwddb])