diff options
Diffstat (limited to 'sys/fs/procfs/procfs_rlimit.c')
| -rw-r--r-- | sys/fs/procfs/procfs_rlimit.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/sys/fs/procfs/procfs_rlimit.c b/sys/fs/procfs/procfs_rlimit.c new file mode 100644 index 0000000..361f6f6 --- /dev/null +++ b/sys/fs/procfs/procfs_rlimit.c @@ -0,0 +1,128 @@ +/* + * Copyright (c) 1999 Adrian Chadd + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Jan-Simon Pendry. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94 + * + * $FreeBSD$ + */ + +/* + * To get resource.h to include our rlimit_ident[] array of rlimit identifiers + */ + +#define _RLIMIT_IDENT + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/proc.h> +#include <sys/vnode.h> +#include <sys/resourcevar.h> +#include <sys/resource.h> +#include <sys/types.h> +#include <miscfs/procfs/procfs.h> + + +int +procfs_dorlimit(curp, p, pfs, uio) + struct proc *curp; + struct proc *p; + struct pfsnode *pfs; + struct uio *uio; +{ + char *ps; + int i; + int xlen; + int error; + char psbuf[512]; /* XXX - conservative */ + + if (uio->uio_rw != UIO_READ) + return (EOPNOTSUPP); + + + ps = psbuf; + + for (i = 0; i < RLIM_NLIMITS; i++) { + + /* + * Add the rlimit ident + */ + + ps += sprintf(ps, "%s ", rlimit_ident[i]); + + /* + * Replace RLIM_INFINITY with -1 in the string + */ + + /* + * current limit + */ + + if (p->p_rlimit[i].rlim_cur == RLIM_INFINITY) { + ps += sprintf(ps, "-1 "); + } else { + ps += sprintf(ps, "%llu ", + (unsigned long long)p->p_rlimit[i].rlim_cur); + } + + /* + * maximum limit + */ + + if (p->p_rlimit[i].rlim_max == RLIM_INFINITY) { + ps += sprintf(ps, "-1\n"); + } else { + ps += sprintf(ps, "%llu\n", + (unsigned long long)p->p_rlimit[i].rlim_max); + } + } + + /* + * This logic is rather tasty - but its from procfs_status.c, so + * I guess I'll use it here. + */ + + xlen = ps - psbuf; + xlen -= uio->uio_offset; + ps = psbuf + uio->uio_offset; + xlen = imin(xlen, uio->uio_resid); + if (xlen <= 0) + error = 0; + else + error = uiomove(ps, xlen, uio); + + return (error); +} + |
