xref: /illumos-gate/usr/src/cmd/ypcmd/getlist.c (revision 2a8bcb4e)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  *
22*7c478bd9Sstevel@tonic-gate  * Copyright 1992 Sun Microsystems, Inc.  All rights reserved.
23*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
24*7c478bd9Sstevel@tonic-gate  */
25*7c478bd9Sstevel@tonic-gate 
26*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
27*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved   */
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate /*
30*7c478bd9Sstevel@tonic-gate  * Portions of this source code were derived from Berkeley
31*7c478bd9Sstevel@tonic-gate  * under license from the Regents of the University of
32*7c478bd9Sstevel@tonic-gate  * California.
33*7c478bd9Sstevel@tonic-gate  */
34*7c478bd9Sstevel@tonic-gate 
35*7c478bd9Sstevel@tonic-gate #include <stdio.h>
36*7c478bd9Sstevel@tonic-gate #include <stdlib.h>
37*7c478bd9Sstevel@tonic-gate #include "ypsym.h"
38*7c478bd9Sstevel@tonic-gate 
39*7c478bd9Sstevel@tonic-gate extern void free();
40*7c478bd9Sstevel@tonic-gate extern char *strdup();
41*7c478bd9Sstevel@tonic-gate 
42*7c478bd9Sstevel@tonic-gate /*
43*7c478bd9Sstevel@tonic-gate  * Add a name to the list
44*7c478bd9Sstevel@tonic-gate  */
45*7c478bd9Sstevel@tonic-gate static listofnames *
newname(str)46*7c478bd9Sstevel@tonic-gate newname(str)
47*7c478bd9Sstevel@tonic-gate char *str;
48*7c478bd9Sstevel@tonic-gate {
49*7c478bd9Sstevel@tonic-gate 	listofnames *it;
50*7c478bd9Sstevel@tonic-gate 	char *copy;
51*7c478bd9Sstevel@tonic-gate 
52*7c478bd9Sstevel@tonic-gate 	if (str == NULL)
53*7c478bd9Sstevel@tonic-gate 		return (NULL);
54*7c478bd9Sstevel@tonic-gate 	copy = strdup(str);
55*7c478bd9Sstevel@tonic-gate 	if (copy == NULL)
56*7c478bd9Sstevel@tonic-gate 		return (NULL);
57*7c478bd9Sstevel@tonic-gate 	it = (listofnames *) malloc(sizeof (listofnames));
58*7c478bd9Sstevel@tonic-gate 	if (it == NULL) {
59*7c478bd9Sstevel@tonic-gate 		free(copy);
60*7c478bd9Sstevel@tonic-gate 		return (NULL);
61*7c478bd9Sstevel@tonic-gate 	}
62*7c478bd9Sstevel@tonic-gate 	it->name = copy;
63*7c478bd9Sstevel@tonic-gate 	it->nextname = NULL;
64*7c478bd9Sstevel@tonic-gate 	return (it);
65*7c478bd9Sstevel@tonic-gate }
66*7c478bd9Sstevel@tonic-gate 
67*7c478bd9Sstevel@tonic-gate /*
68*7c478bd9Sstevel@tonic-gate  * Assemble the list of names
69*7c478bd9Sstevel@tonic-gate  */
70*7c478bd9Sstevel@tonic-gate listofnames *
names(filename)71*7c478bd9Sstevel@tonic-gate names(filename)
72*7c478bd9Sstevel@tonic-gate char *filename;
73*7c478bd9Sstevel@tonic-gate {
74*7c478bd9Sstevel@tonic-gate 	listofnames *nameslist;
75*7c478bd9Sstevel@tonic-gate 	listofnames *end;
76*7c478bd9Sstevel@tonic-gate 	listofnames *nname;
77*7c478bd9Sstevel@tonic-gate 	FILE *fyle;
78*7c478bd9Sstevel@tonic-gate 	char line[256];
79*7c478bd9Sstevel@tonic-gate 	char name[256];
80*7c478bd9Sstevel@tonic-gate 
81*7c478bd9Sstevel@tonic-gate 	fyle = fopen(filename, "r");
82*7c478bd9Sstevel@tonic-gate 	if (fyle == NULL) {
83*7c478bd9Sstevel@tonic-gate 		return (NULL);
84*7c478bd9Sstevel@tonic-gate 	}
85*7c478bd9Sstevel@tonic-gate 	nameslist = NULL;
86*7c478bd9Sstevel@tonic-gate 	while (fgets(line, sizeof (line), fyle)) {
87*7c478bd9Sstevel@tonic-gate 		if (line[0] == '#') continue;
88*7c478bd9Sstevel@tonic-gate 		if (line[0] == '\0') continue;
89*7c478bd9Sstevel@tonic-gate 		if (line[0] == '\n') continue;
90*7c478bd9Sstevel@tonic-gate 		nname = newname(line);
91*7c478bd9Sstevel@tonic-gate 		if (nname) {
92*7c478bd9Sstevel@tonic-gate 			if (nameslist == NULL) {
93*7c478bd9Sstevel@tonic-gate 					nameslist = nname;
94*7c478bd9Sstevel@tonic-gate 					end = nname;
95*7c478bd9Sstevel@tonic-gate 			} else {
96*7c478bd9Sstevel@tonic-gate 				end->nextname = nname;
97*7c478bd9Sstevel@tonic-gate 				end = nname;
98*7c478bd9Sstevel@tonic-gate 			}
99*7c478bd9Sstevel@tonic-gate 		} else
100*7c478bd9Sstevel@tonic-gate 			fprintf(stderr,
101*7c478bd9Sstevel@tonic-gate 		"file %s bad malloc %s\n", filename, name);
102*7c478bd9Sstevel@tonic-gate 	}
103*7c478bd9Sstevel@tonic-gate 	fclose(fyle);
104*7c478bd9Sstevel@tonic-gate 	return (nameslist);
105*7c478bd9Sstevel@tonic-gate }
106*7c478bd9Sstevel@tonic-gate 
107*7c478bd9Sstevel@tonic-gate void
free_listofnames(locallist)108*7c478bd9Sstevel@tonic-gate free_listofnames(locallist)
109*7c478bd9Sstevel@tonic-gate listofnames *locallist;
110*7c478bd9Sstevel@tonic-gate {
111*7c478bd9Sstevel@tonic-gate 	listofnames *next = (listofnames *)NULL;
112*7c478bd9Sstevel@tonic-gate 
113*7c478bd9Sstevel@tonic-gate 	for (; locallist; locallist = next) {
114*7c478bd9Sstevel@tonic-gate 		next = locallist->nextname;
115*7c478bd9Sstevel@tonic-gate 		if (locallist->name)
116*7c478bd9Sstevel@tonic-gate 			free(locallist->name);
117*7c478bd9Sstevel@tonic-gate 		free((char *)locallist);
118*7c478bd9Sstevel@tonic-gate 	}
119*7c478bd9Sstevel@tonic-gate }
120*7c478bd9Sstevel@tonic-gate 
121*7c478bd9Sstevel@tonic-gate 
122*7c478bd9Sstevel@tonic-gate #ifdef MAIN
main(argc,argv)123*7c478bd9Sstevel@tonic-gate main(argc, argv)
124*7c478bd9Sstevel@tonic-gate char **argv;
125*7c478bd9Sstevel@tonic-gate {
126*7c478bd9Sstevel@tonic-gate 	listofnames *list;
127*7c478bd9Sstevel@tonic-gate 	list = names(argv[1]);
128*7c478bd9Sstevel@tonic-gate #ifdef DEBUG
129*7c478bd9Sstevel@tonic-gate 	print_listofnames(list);
130*7c478bd9Sstevel@tonic-gate #endif
131*7c478bd9Sstevel@tonic-gate 	free_listofnames(list);
132*7c478bd9Sstevel@tonic-gate #ifdef DEBUG
133*7c478bd9Sstevel@tonic-gate 	printf("Done\n");
134*7c478bd9Sstevel@tonic-gate #endif
135*7c478bd9Sstevel@tonic-gate }
136*7c478bd9Sstevel@tonic-gate #endif
137*7c478bd9Sstevel@tonic-gate 
138*7c478bd9Sstevel@tonic-gate #ifdef DEBUG
139*7c478bd9Sstevel@tonic-gate void
print_listofnames(list)140*7c478bd9Sstevel@tonic-gate print_listofnames(list)
141*7c478bd9Sstevel@tonic-gate listofnames *list;
142*7c478bd9Sstevel@tonic-gate {
143*7c478bd9Sstevel@tonic-gate 	if (list == NULL)
144*7c478bd9Sstevel@tonic-gate 		printf("NULL\n");
145*7c478bd9Sstevel@tonic-gate 	for (; list; list = list->nextname)
146*7c478bd9Sstevel@tonic-gate 		printf("%s\n", list->name);
147*7c478bd9Sstevel@tonic-gate }
148*7c478bd9Sstevel@tonic-gate #endif
149