diff options
Diffstat (limited to 'lib/libkvm/kvm_file.c')
-rw-r--r-- | lib/libkvm/kvm_file.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/lib/libkvm/kvm_file.c b/lib/libkvm/kvm_file.c deleted file mode 100644 index 12fe6da..0000000 --- a/lib/libkvm/kvm_file.c +++ /dev/null @@ -1,226 +0,0 @@ -/*- - * Copyright (c) 1989, 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * 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. - * 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. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#if defined(LIBC_SCCS) && !defined(lint) -#if 0 -static char sccsid[] = "@(#)kvm_file.c 8.1 (Berkeley) 6/4/93"; -#endif -#endif /* LIBC_SCCS and not lint */ - -/* - * File list interface for kvm. pstat, fstat and netstat are - * users of this code, so we've factored it out into a separate module. - * Thus, we keep this grunge out of the other kvm applications (i.e., - * most other applications are interested only in open/close/read/nlist). - */ - -#include <sys/param.h> -#include <sys/user.h> -#include <sys/proc.h> -#define _WANT_FILE /* make file.h give us 'struct file' */ -#include <sys/file.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <nlist.h> -#include <kvm.h> - -#include <vm/vm.h> -#include <vm/vm_param.h> - -#include <sys/sysctl.h> - -#include <limits.h> -#include <ndbm.h> -#include <paths.h> -#include <stdlib.h> - -#include "kvm_private.h" - -#define KREAD(kd, addr, obj) \ - (kvm_read(kd, addr, obj, sizeof(*obj)) != sizeof(*obj)) - -#define KREADN(kd, addr, obj, cnt) \ - (kvm_read(kd, addr, obj, (cnt)) != (ssize_t)(cnt)) - -/* - * Get file structures. - */ -static int -kvm_deadfiles(kvm_t *kd, int op __unused, int arg __unused, long allproc_o, - int nprocs __unused) -{ - struct proc proc; - struct filedesc filed; - int buflen = kd->arglen, ocnt = 0, n = 0, once = 0, i; - struct file **ofiles; - struct file *fp; - struct proc *p; - char *where = kd->argspc; - - if (buflen < (int)(sizeof(struct file *) + sizeof(struct file))) - return (0); - if (KREAD(kd, allproc_o, &p)) { - _kvm_err(kd, kd->program, "cannot read allproc"); - return (0); - } - for (; p != NULL; p = LIST_NEXT(&proc, p_list)) { - if (KREAD(kd, (u_long)p, &proc)) { - _kvm_err(kd, kd->program, "can't read proc at %p", p); - goto fail; - } - if (proc.p_state == PRS_NEW) - continue; - if (proc.p_fd == NULL) - continue; - if (KREAD(kd, (u_long)p->p_fd, &filed)) { - _kvm_err(kd, kd->program, "can't read filedesc at %p", - p->p_fd); - goto fail; - } - if (filed.fd_lastfile + 1 > ocnt) { - ocnt = filed.fd_lastfile + 1; - free(ofiles); - ofiles = (struct file **)_kvm_malloc(kd, - ocnt * sizeof(struct file *)); - if (ofiles == 0) - return (0); - } - if (KREADN(kd, (u_long)filed.fd_ofiles, ofiles, - ocnt * sizeof(struct file *))) { - _kvm_err(kd, kd->program, "can't read ofiles at %p", - filed.fd_ofiles); - return (0); - } - for (i = 0; i <= filed.fd_lastfile; i++) { - if ((fp = ofiles[i]) == NULL) - continue; - /* - * copyout filehead (legacy) - */ - if (!once) { - *(struct file **)kd->argspc = fp; - *(struct file **)where = fp; - buflen -= sizeof (fp); - where += sizeof (fp); - once = 1; - } - if (buflen < (int)sizeof(struct file)) - goto fail; - if (KREAD(kd, (long)fp, ((struct file *)where))) { - _kvm_err(kd, kd->program, "can't read kfp"); - goto fail; - } - buflen -= sizeof (struct file); - fp = (struct file *)where; - where += sizeof (struct file); - n++; - } - } - free(ofiles); - return (n); -fail: - free(ofiles); - return (0); - -} - -char * -kvm_getfiles(kvm_t *kd, int op, int arg, int *cnt) -{ - int mib[2], st, n, nfiles, nprocs; - size_t size; - - _kvm_syserr(kd, kd->program, "kvm_getfiles has been broken for years"); - return (0); - if (ISALIVE(kd)) { - size = 0; - mib[0] = CTL_KERN; - mib[1] = KERN_FILE; - st = sysctl(mib, 2, NULL, &size, NULL, 0); - if (st == -1) { - _kvm_syserr(kd, kd->program, "kvm_getfiles"); - return (0); - } - if (kd->argspc == 0) - kd->argspc = (char *)_kvm_malloc(kd, size); - else if (kd->arglen < (int)size) - kd->argspc = (char *)_kvm_realloc(kd, kd->argspc, size); - if (kd->argspc == 0) - return (0); - kd->arglen = size; - st = sysctl(mib, 2, kd->argspc, &size, NULL, 0); - if (st != 0) { - _kvm_syserr(kd, kd->program, "kvm_getfiles"); - return (0); - } - nfiles = size / sizeof(struct xfile); - } else { - struct nlist nl[4], *p; - - nl[0].n_name = "_allproc"; - nl[1].n_name = "_nprocs"; - nl[2].n_name = "_nfiles"; - nl[3].n_name = 0; - - if (kvm_nlist(kd, nl) != 0) { - for (p = nl; p->n_type != 0; ++p) - ; - _kvm_err(kd, kd->program, - "%s: no such symbol", p->n_name); - return (0); - } - if (KREAD(kd, nl[1].n_value, &nprocs)) { - _kvm_err(kd, kd->program, "can't read nprocs"); - return (0); - } - if (KREAD(kd, nl[2].n_value, &nfiles)) { - _kvm_err(kd, kd->program, "can't read nfiles"); - return (0); - } - size = sizeof(void *) + (nfiles + 10) * sizeof(struct file); - if (kd->argspc == 0) - kd->argspc = (char *)_kvm_malloc(kd, size); - else if (kd->arglen < (int)size) - kd->argspc = (char *)_kvm_realloc(kd, kd->argspc, size); - if (kd->argspc == 0) - return (0); - kd->arglen = size; - n = kvm_deadfiles(kd, op, arg, nl[0].n_value, nprocs); - if (n != nfiles) { - _kvm_err(kd, kd->program, "inconsistant nfiles"); - return (0); - } - nfiles = n; - } - *cnt = nfiles; - return (kd->argspc); -} |