--- /dev/null
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
+ * Reserved. This file contains Original Code and/or Modifications of
+ * Original Code as defined in and that are subject to the Apple Public
+ * Source License Version 1.0 (the 'License'). You may not use this file
+ * except in compliance with the License. Please obtain a copy of the
+ * License at http://www.apple.com/publicsource and read it before using
+ * this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License."
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 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.
+ * 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)pathconf.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/unistd.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define PC_NAMES { \
+ { 0, 0 }, \
+ { "link_max", CTLTYPE_INT }, \
+ { "max_canon", CTLTYPE_INT }, \
+ { "max_input", CTLTYPE_INT }, \
+ { "name_max", CTLTYPE_INT }, \
+ { "path_max", CTLTYPE_INT }, \
+ { "pipe_buf", CTLTYPE_INT }, \
+ { "chown_restricted", CTLTYPE_INT }, \
+ { "no_trunc", CTLTYPE_INT }, \
+ { "vdisable", CTLTYPE_INT }, \
+}
+#define PC_MAXID 10
+
+struct ctlname pcnames[] = PC_NAMES;
+char names[BUFSIZ];
+
+struct list {
+ struct ctlname *list;
+ int size;
+};
+struct list pclist = { pcnames, PC_MAXID };
+
+int Aflag, aflag, nflag, wflag, stdinflag;
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ extern char *optarg;
+ extern int optind;
+ char *path;
+ int ch;
+
+ while ((ch = getopt(argc, argv, "Aan")) != EOF) {
+ switch (ch) {
+
+ case 'A':
+ Aflag = 1;
+ break;
+
+ case 'a':
+ aflag = 1;
+ break;
+
+ case 'n':
+ nflag = 1;
+ break;
+
+ default:
+ usage();
+ }
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc == 0)
+ usage();
+ path = *argv++;
+ if (strcmp(path, "-") == 0)
+ stdinflag = 1;
+ argc--;
+ if (Aflag || aflag) {
+ listall(path, &pclist);
+ exit(0);
+ }
+ if (argc == 0)
+ usage();
+ while (argc-- > 0)
+ parse(path, *argv, 1);
+ exit(0);
+}
+
+/*
+ * List all variables known to the system.
+ */
+listall(path, lp)
+ char *path;
+ struct list *lp;
+{
+ int lvl2;
+
+ if (lp->list == 0)
+ return;
+ for (lvl2 = 0; lvl2 < lp->size; lvl2++) {
+ if (lp->list[lvl2].ctl_name == 0)
+ continue;
+ parse(path, lp->list[lvl2].ctl_name, Aflag);
+ }
+}
+
+/*
+ * Parse a name into an index.
+ * Lookup and print out the attribute if it exists.
+ */
+parse(pathname, string, flags)
+ char *pathname;
+ char *string;
+ int flags;
+{
+ int indx, value;
+ char *bufp, buf[BUFSIZ];
+
+ bufp = buf;
+ snprintf(buf, BUFSIZ, "%s", string);
+ if ((indx = findname(string, "top", &bufp, &pclist)) == -1)
+ return;
+ if (bufp) {
+ fprintf(stderr, "name %s in %s is unknown\n", *bufp, string);
+ return;
+ }
+ if (stdinflag)
+ value = fpathconf(0, indx);
+ else
+ value = pathconf(pathname, indx);
+ if (value == -1) {
+ if (flags == 0)
+ return;
+ switch (errno) {
+ case ENOTSUP:
+ fprintf(stderr, "%s: value is not available\n", string);
+ return;
+ case ENOTDIR:
+ fprintf(stderr, "%s: specification is incomplete\n",
+ string);
+ return;
+ case ENOMEM:
+ fprintf(stderr, "%s: type is unknown to this program\n",
+ string);
+ return;
+ default:
+ perror(string);
+ return;
+ }
+ }
+ if (!nflag)
+ fprintf(stdout, "%s = ", string);
+ fprintf(stdout, "%d\n", value);
+}
+
+/*
+ * Scan a list of names searching for a particular name.
+ */
+findname(string, level, bufp, namelist)
+ char *string;
+ char *level;
+ char **bufp;
+ struct list *namelist;
+{
+ char *name;
+ int i;
+
+ if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) {
+ fprintf(stderr, "%s: incomplete specification\n", string);
+ return (-1);
+ }
+ for (i = 0; i < namelist->size; i++)
+ if (namelist->list[i].ctl_name != NULL &&
+ strcmp(name, namelist->list[i].ctl_name) == 0)
+ break;
+ if (i == namelist->size) {
+ fprintf(stderr, "%s level name %s in %s is invalid\n",
+ level, name, string);
+ return (-1);
+ }
+ return (i);
+}
+
+usage()
+{
+
+ (void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n",
+ "pathname [-n] variable ...",
+ "pathname [-n] -a", "pathname [-n] -A");
+ exit(1);
+}
projects / apple / system_cmds.git / blobdiff