/* vi: set sw=4 ts=4: */ /* * Copyright (C) 2003 by Erik Andersen <andersen@codepoet.org> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Library General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License * for more details. * * You should have received a copy of the GNU Library General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #define _GNU_SOURCE #define _LARGEFILE64_SOURCE #include <features.h> #undef __OPTIMIZE__ /* We absolutely do _NOT_ want interfaces silently * * * renamed under us or very bad things will happen... */ #ifdef __USE_FILE_OFFSET64 # undef __USE_FILE_OFFSET64 #endif #ifdef __NR_ulimit #include <sys/types.h> #include <sys/syscall.h> _syscall2(long, ulimit, int, cmd, int, arg); #else #include <stdarg.h> #include <unistd.h> #include <ulimit.h> #include <errno.h> #include <sys/resource.h> libc_hidden_proto(sysconf) libc_hidden_proto(getrlimit) libc_hidden_proto(setrlimit) long int ulimit(int cmd, ...) { va_list va; struct rlimit limit; long int result = -1; va_start (va, cmd); switch (cmd) { /* Get limit on file size. */ case UL_GETFSIZE: if (getrlimit(RLIMIT_FSIZE, &limit) == 0) result = limit.rlim_cur / 512; /* bytes to 512 byte blocksize */ break; /* Set limit on file size. */ case UL_SETFSIZE: result = va_arg (va, long int); if ((rlim_t) result > RLIM_INFINITY / 512) { limit.rlim_cur = RLIM_INFINITY; limit.rlim_max = RLIM_INFINITY; } else { limit.rlim_cur = result * 512; limit.rlim_max = result * 512; } result = setrlimit(RLIMIT_FSIZE, &limit); break; case __UL_GETOPENMAX: result = sysconf(_SC_OPEN_MAX); break; default: __set_errno(EINVAL); } va_end (va); return result; } #endif