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Diffstat (limited to 'nis/nss_compat/compat-grp.c')
-rw-r--r--nis/nss_compat/compat-grp.c82
1 files changed, 46 insertions, 36 deletions
diff --git a/nis/nss_compat/compat-grp.c b/nis/nss_compat/compat-grp.c
index 85414ed81d..08bf5d2f80 100644
--- a/nis/nss_compat/compat-grp.c
+++ b/nis/nss_compat/compat-grp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996,1997,1998,1999,2001,2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1996-1999,2001,2002,2003,2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996.
@@ -253,17 +253,25 @@ getgrent_next_file (struct group *result, ent_t *ent,
do
{
+ /* We need at least 3 characters for one line. */
+ if (__builtin_expect (buflen < 3, 0))
+ {
+ erange:
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
fgetpos (ent->stream, &pos);
buffer[buflen - 1] = '\xff';
p = fgets_unlocked (buffer, buflen, ent->stream);
if (p == NULL && feof_unlocked (ent->stream))
return NSS_STATUS_NOTFOUND;
- if (p == NULL || buffer[buflen - 1] != '\xff')
+ if (p == NULL || __builtin_expect (buffer[buflen - 1] != '\xff', 0))
{
+ erange_reset:
fsetpos (ent->stream, &pos);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
+ goto erange;
}
/* Terminate the line for any case. */
@@ -279,13 +287,9 @@ getgrent_next_file (struct group *result, ent_t *ent,
!(parse_res = _nss_files_parse_grent (p, result, data, buflen,
errnop)));
- if (parse_res == -1)
- {
- /* The parser ran out of space. */
- fsetpos (ent->stream, &pos);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
+ if (__builtin_expect (parse_res == -1, 0))
+ /* The parser ran out of space. */
+ goto erange_reset;
if (result->gr_name[0] != '+' && result->gr_name[0] != '-')
/* This is a real entry. */
@@ -315,17 +319,15 @@ getgrent_next_file (struct group *result, ent_t *ent,
blacklist_store_name (buf, ent);
if (status == NSS_STATUS_SUCCESS) /* We found the entry. */
break;
- else if (status == NSS_STATUS_RETURN /* We couldn't parse the entry */
+ else if (status == NSS_STATUS_RETURN /* We couldn't parse the entry*/
|| status == NSS_STATUS_NOTFOUND) /* No group in NIS */
continue;
else
{
if (status == NSS_STATUS_TRYAGAIN)
- {
- /* The parser ran out of space. */
- fsetpos (ent->stream, &pos);
- *errnop = ERANGE;
- }
+ /* The parser ran out of space. */
+ goto erange_reset;
+
return status;
}
}
@@ -384,17 +386,25 @@ internal_getgrnam_r (const char *name, struct group *result, ent_t *ent,
do
{
+ /* We need at least 3 characters for one line. */
+ if (__builtin_expect (buflen < 3, 0))
+ {
+ erange:
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
fgetpos (ent->stream, &pos);
buffer[buflen - 1] = '\xff';
p = fgets_unlocked (buffer, buflen, ent->stream);
if (p == NULL && feof_unlocked (ent->stream))
return NSS_STATUS_NOTFOUND;
- if (p == NULL || buffer[buflen - 1] != '\xff')
+ if (p == NULL || __builtin_expect (buffer[buflen - 1] != '\xff', 0))
{
+ erange_reset:
fsetpos (ent->stream, &pos);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
+ goto erange;
}
/* Terminate the line for any case. */
@@ -410,13 +420,9 @@ internal_getgrnam_r (const char *name, struct group *result, ent_t *ent,
!(parse_res = _nss_files_parse_grent (p, result, data, buflen,
errnop)));
- if (parse_res == -1)
- {
- /* The parser ran out of space. */
- fsetpos (ent->stream, &pos);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
+ if (__builtin_expect (parse_res == -1, 0))
+ /* The parser ran out of space. */
+ goto erange_reset;
/* This is a real entry. */
if (result->gr_name[0] != '+' && result->gr_name[0] != '-')
@@ -511,17 +517,25 @@ internal_getgrgid_r (gid_t gid, struct group *result, ent_t *ent,
do
{
+ /* We need at least 3 characters for one line. */
+ if (__builtin_expect (buflen < 3, 0))
+ {
+ erange:
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
fgetpos (ent->stream, &pos);
buffer[buflen - 1] = '\xff';
p = fgets_unlocked (buffer, buflen, ent->stream);
if (p == NULL && feof_unlocked (ent->stream))
return NSS_STATUS_NOTFOUND;
- if (p == NULL || buffer[buflen - 1] != '\xff')
+ if (p == NULL || __builtin_expect (buffer[buflen - 1] != '\xff', 0))
{
+ erange_reset:
fsetpos (ent->stream, &pos);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
+ goto erange;
}
/* Terminate the line for any case. */
@@ -538,12 +552,8 @@ internal_getgrgid_r (gid_t gid, struct group *result, ent_t *ent,
errnop)));
if (parse_res == -1)
- {
- /* The parser ran out of space. */
- fsetpos (ent->stream, &pos);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
+ /* The parser ran out of space. */
+ goto erange_reset;
/* This is a real entry. */
if (result->gr_name[0] != '+' && result->gr_name[0] != '-')