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| -rw-r--r-- | libc/sysdeps/linux/common/ulimit.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/ulimit.c b/libc/sysdeps/linux/common/ulimit.c new file mode 100644 index 000000000..a0fa1258b --- /dev/null +++ b/libc/sysdeps/linux/common/ulimit.c @@ -0,0 +1,81 @@ +/* vi: set sw=4 ts=4: */ +/* + * Copyright (C) 2003 by Erik Andersen <andersen@codpoet.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> + +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 + |