/* vi: set sw=4 ts=4: */ /* * setgroups() for uClibc * * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <sys/syscall.h> #ifdef __USE_BSD #include <grp.h> #if defined(__NR_setgroups32) # undef __NR_setgroups # define __NR_setgroups __NR_setgroups32 _syscall2(int, setgroups, size_t, size, const gid_t *, list) #elif __WORDSIZE == 64 _syscall2(int, setgroups, size_t, size, const gid_t *, list) #else # include <errno.h> # include <stdlib.h> # include <unistd.h> # include <sys/types.h> # define __NR___syscall_setgroups __NR_setgroups static __always_inline _syscall2(int, __syscall_setgroups, size_t, size, const __kernel_gid_t *, list) int setgroups(size_t size, const gid_t *groups) { if (size > (size_t) sysconf(_SC_NGROUPS_MAX)) { ret_error: __set_errno(EINVAL); return -1; } else { size_t i; __kernel_gid_t *kernel_groups = NULL; if (size) { kernel_groups = (__kernel_gid_t *)malloc(sizeof(*kernel_groups) * size); if (kernel_groups == NULL) goto ret_error; } for (i = 0; i < size; i++) { kernel_groups[i] = (groups)[i]; if (groups[i] != (gid_t) ((__kernel_gid_t) groups[i])) { goto ret_error; } } i = __syscall_setgroups(size, kernel_groups); free(kernel_groups); return i; } } #endif libc_hidden_def(setgroups) #endif