diff options
| -rw-r--r-- | lib/getugroups.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/getugroups.c b/lib/getugroups.c index b5e268777..dbd86ef93 100644 --- a/lib/getugroups.c +++ b/lib/getugroups.c @@ -1,5 +1,7 @@ /* getugroups.c -- return a list of the groups a user is in - Copyright (C) 1990, 1991, 1998, 1999, 2000, 2003 Free Software Foundation. + + Copyright (C) 1990, 1991, 1998, 1999, 2000, 2003, 2004 Free + Software Foundation. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -29,6 +31,11 @@ # include <unistd.h> #endif +#include <errno.h> +#ifndef EOVERFLOW +# define EOVERFLOW EINVAL +#endif + /* setgrent, getgrent, and endgrent are not specified by POSIX.1, so header files might not declare them. If you don't have them at all, we can't implement this function. @@ -88,6 +95,11 @@ getugroups (int maxcount, GETGROUPS_T *grouplist, char *username, gid_t gid) grouplist[count] = grp->gr_gid; } count++; + if (count < 0) + { + errno = EOVERFLOW; + return -1; + } } } } |