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Diffstat (limited to 'nss')
-rw-r--r--nss/nss_files/files-XXX.c6
-rw-r--r--nss/nss_files/files-alias.c14
2 files changed, 13 insertions, 7 deletions
diff --git a/nss/nss_files/files-XXX.c b/nss/nss_files/files-XXX.c
index c1f3c4e..f4f2f2c 100644
--- a/nss/nss_files/files-XXX.c
+++ b/nss/nss_files/files-XXX.c
@@ -1,5 +1,5 @@
/* Common code for file-based databases in nss_files module.
- Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -162,14 +162,14 @@ CONCAT(_nss_files_end,ENTNAME) (void)
static enum nss_status
internal_getent (struct STRUCTURE *result,
- char *buffer, int buflen, int *errnop H_ERRNO_PROTO)
+ char *buffer, size_t buflen, int *errnop H_ERRNO_PROTO)
{
char *p;
struct parser_data *data = (void *) buffer;
int linebuflen = buffer + buflen - data->linebuffer;
int parse_result;
- if (buflen < (int) sizeof *data + 1)
+ if (buflen < sizeof *data + 2)
{
*errnop = ERANGE;
H_ERRNO_SET (NETDB_INTERNAL);
diff --git a/nss/nss_files/files-alias.c b/nss/nss_files/files-alias.c
index b18361f..b9bba9c 100644
--- a/nss/nss_files/files-alias.c
+++ b/nss/nss_files/files-alias.c
@@ -1,5 +1,5 @@
/* Mail alias file parser in nss_files module.
- Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@@ -148,10 +148,15 @@ get_next_alias (const char *match, struct aliasent *result,
size_t room_left = buflen - (buflen % __alignof__ (char *));
char *line;
+ /* Check whether the buffer is large enough for even trying to
+ read something. */
+ if (room_left < 2)
+ goto no_more_room;
+
/* Read the first line. It must contain the alias name and
possibly some alias names. */
first_unused[room_left - 1] = '\xff';
- line = fgets (first_unused, room_left, stream);
+ line = fgets_unlocked (first_unused, room_left, stream);
if (line == NULL)
/* Nothing to read. */
break;
@@ -245,7 +250,8 @@ get_next_alias (const char *match, struct aliasent *result,
while (! feof (listfile))
{
first_unused[room_left - 1] = '\xff';
- line = fgets (first_unused, room_left, listfile);
+ line = fgets_unlocked (first_unused, room_left,
+ listfile);
if (line == NULL)
break;
if (first_unused[room_left - 1] != '\xff')
@@ -345,7 +351,7 @@ get_next_alias (const char *match, struct aliasent *result,
/* The just read character is a white space and so
can be ignored. */
first_unused[room_left - 1] = '\xff';
- line = fgets (first_unused, room_left, stream);
+ line = fgets_unlocked (first_unused, room_left, stream);
if (first_unused[room_left - 1] != '\xff')
goto no_more_room;
cp = strpbrk (line, "#\n");