/* 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 "syscalls.h" #include <stdlib.h> #include <unistd.h> #include <grp.h> libc_hidden_proto(setgroups) libc_hidden_proto(sysconf) #define __NR___syscall_setgroups __NR_setgroups static 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); if (kernel_groups) free(kernel_groups); return i; } } libc_hidden_def(setgroups)