From 6334e558ab33ee1e54ed33740881a2798c5915c2 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Wed, 21 Jan 2004 23:27:48 +0000 Subject: Split up syscalls.c, since it had grown to be quite large and ugly. -Erik --- libc/sysdeps/linux/common/setgroups.c | 36 +++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 libc/sysdeps/linux/common/setgroups.c (limited to 'libc/sysdeps/linux/common/setgroups.c') diff --git a/libc/sysdeps/linux/common/setgroups.c b/libc/sysdeps/linux/common/setgroups.c new file mode 100644 index 000000000..622d24d58 --- /dev/null +++ b/libc/sysdeps/linux/common/setgroups.c @@ -0,0 +1,36 @@ +/* vi: set sw=4 ts=4: */ +/* + * setgroups() for uClibc + * + * Copyright (C) 2000-2004 by Erik Andersen + * + * GNU Library General Public License (LGPL) version 2 or later. + */ + +#include "syscalls.h" +#include +#include + +#define __NR___syscall_setgroups __NR_setgroups +static inline _syscall2(int, __syscall_setgroups, + size_t, size, const __kernel_gid_t *, list); + +int setgroups(size_t n, const gid_t * groups) +{ + if (n > (size_t) sysconf(_SC_NGROUPS_MAX)) { + __set_errno(EINVAL); + return -1; + } else { + size_t i; + __kernel_gid_t kernel_groups[n]; + + for (i = 0; i < n; i++) { + kernel_groups[i] = (groups)[i]; + if (groups[i] != (gid_t) ((__kernel_gid_t) groups[i])) { + __set_errno(EINVAL); + return -1; + } + } + return (__syscall_setgroups(n, kernel_groups)); + } +} -- cgit v1.2.3