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Correct checking loop in group_member.

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This commit is contained in:
Ulrich Drepper
2010-06-19 11:38:04 -07:00
parent 63c4ed22b5
commit ac2b484c02
3 changed files with 14 additions and 6 deletions
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9
posix/group_member.c
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@@ -1,5 +1,5 @@
/* `group_member' -- test if process is in a given group.
Copyright (C) 1995, 1997, 2002 Free Software Foundation, Inc.
Copyright (C) 1995, 1997, 2002, 2010 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
@@ -39,10 +39,11 @@ __group_member (gid)
groups = __alloca (size * sizeof *groups);
n = __getgroups (size, groups);
size *= 2;
} while (n == size / 2);
}
while (n == size / 2);
while (n >= 0)
if (groups[n--] == gid)
while (n-- > 0)
if (groups[n] == gid)
return 1;
return 0;