xref: /onnv-gate/usr/src/cmd/ypcmd/getlist.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  *
22*0Sstevel@tonic-gate  * Copyright 1992 Sun Microsystems, Inc.  All rights reserved.
23*0Sstevel@tonic-gate  * Use is subject to license terms.
24*0Sstevel@tonic-gate  */
25*0Sstevel@tonic-gate 
26*0Sstevel@tonic-gate /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
27*0Sstevel@tonic-gate /*	  All Rights Reserved   */
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate /*
30*0Sstevel@tonic-gate  * Portions of this source code were derived from Berkeley
31*0Sstevel@tonic-gate  * under license from the Regents of the University of
32*0Sstevel@tonic-gate  * California.
33*0Sstevel@tonic-gate  */
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
36*0Sstevel@tonic-gate 
37*0Sstevel@tonic-gate #include <stdio.h>
38*0Sstevel@tonic-gate #include <stdlib.h>
39*0Sstevel@tonic-gate #include "ypsym.h"
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate extern void free();
42*0Sstevel@tonic-gate extern char *strdup();
43*0Sstevel@tonic-gate 
44*0Sstevel@tonic-gate /*
45*0Sstevel@tonic-gate  * Add a name to the list
46*0Sstevel@tonic-gate  */
47*0Sstevel@tonic-gate static listofnames *
newname(str)48*0Sstevel@tonic-gate newname(str)
49*0Sstevel@tonic-gate char *str;
50*0Sstevel@tonic-gate {
51*0Sstevel@tonic-gate 	listofnames *it;
52*0Sstevel@tonic-gate 	char *copy;
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate 	if (str == NULL)
55*0Sstevel@tonic-gate 		return (NULL);
56*0Sstevel@tonic-gate 	copy = strdup(str);
57*0Sstevel@tonic-gate 	if (copy == NULL)
58*0Sstevel@tonic-gate 		return (NULL);
59*0Sstevel@tonic-gate 	it = (listofnames *) malloc(sizeof (listofnames));
60*0Sstevel@tonic-gate 	if (it == NULL) {
61*0Sstevel@tonic-gate 		free(copy);
62*0Sstevel@tonic-gate 		return (NULL);
63*0Sstevel@tonic-gate 	}
64*0Sstevel@tonic-gate 	it->name = copy;
65*0Sstevel@tonic-gate 	it->nextname = NULL;
66*0Sstevel@tonic-gate 	return (it);
67*0Sstevel@tonic-gate }
68*0Sstevel@tonic-gate 
69*0Sstevel@tonic-gate /*
70*0Sstevel@tonic-gate  * Assemble the list of names
71*0Sstevel@tonic-gate  */
72*0Sstevel@tonic-gate listofnames *
names(filename)73*0Sstevel@tonic-gate names(filename)
74*0Sstevel@tonic-gate char *filename;
75*0Sstevel@tonic-gate {
76*0Sstevel@tonic-gate 	listofnames *nameslist;
77*0Sstevel@tonic-gate 	listofnames *end;
78*0Sstevel@tonic-gate 	listofnames *nname;
79*0Sstevel@tonic-gate 	FILE *fyle;
80*0Sstevel@tonic-gate 	char line[256];
81*0Sstevel@tonic-gate 	char name[256];
82*0Sstevel@tonic-gate 
83*0Sstevel@tonic-gate 	fyle = fopen(filename, "r");
84*0Sstevel@tonic-gate 	if (fyle == NULL) {
85*0Sstevel@tonic-gate 		return (NULL);
86*0Sstevel@tonic-gate 	}
87*0Sstevel@tonic-gate 	nameslist = NULL;
88*0Sstevel@tonic-gate 	while (fgets(line, sizeof (line), fyle)) {
89*0Sstevel@tonic-gate 		if (line[0] == '#') continue;
90*0Sstevel@tonic-gate 		if (line[0] == '\0') continue;
91*0Sstevel@tonic-gate 		if (line[0] == '\n') continue;
92*0Sstevel@tonic-gate 		nname = newname(line);
93*0Sstevel@tonic-gate 		if (nname) {
94*0Sstevel@tonic-gate 			if (nameslist == NULL) {
95*0Sstevel@tonic-gate 					nameslist = nname;
96*0Sstevel@tonic-gate 					end = nname;
97*0Sstevel@tonic-gate 			} else {
98*0Sstevel@tonic-gate 				end->nextname = nname;
99*0Sstevel@tonic-gate 				end = nname;
100*0Sstevel@tonic-gate 			}
101*0Sstevel@tonic-gate 		} else
102*0Sstevel@tonic-gate 			fprintf(stderr,
103*0Sstevel@tonic-gate 		"file %s bad malloc %s\n", filename, name);
104*0Sstevel@tonic-gate 	}
105*0Sstevel@tonic-gate 	fclose(fyle);
106*0Sstevel@tonic-gate 	return (nameslist);
107*0Sstevel@tonic-gate }
108*0Sstevel@tonic-gate 
109*0Sstevel@tonic-gate void
free_listofnames(locallist)110*0Sstevel@tonic-gate free_listofnames(locallist)
111*0Sstevel@tonic-gate listofnames *locallist;
112*0Sstevel@tonic-gate {
113*0Sstevel@tonic-gate 	listofnames *next = (listofnames *)NULL;
114*0Sstevel@tonic-gate 
115*0Sstevel@tonic-gate 	for (; locallist; locallist = next) {
116*0Sstevel@tonic-gate 		next = locallist->nextname;
117*0Sstevel@tonic-gate 		if (locallist->name)
118*0Sstevel@tonic-gate 			free(locallist->name);
119*0Sstevel@tonic-gate 		free((char *)locallist);
120*0Sstevel@tonic-gate 	}
121*0Sstevel@tonic-gate }
122*0Sstevel@tonic-gate 
123*0Sstevel@tonic-gate 
124*0Sstevel@tonic-gate #ifdef MAIN
main(argc,argv)125*0Sstevel@tonic-gate main(argc, argv)
126*0Sstevel@tonic-gate char **argv;
127*0Sstevel@tonic-gate {
128*0Sstevel@tonic-gate 	listofnames *list;
129*0Sstevel@tonic-gate 	list = names(argv[1]);
130*0Sstevel@tonic-gate #ifdef DEBUG
131*0Sstevel@tonic-gate 	print_listofnames(list);
132*0Sstevel@tonic-gate #endif
133*0Sstevel@tonic-gate 	free_listofnames(list);
134*0Sstevel@tonic-gate #ifdef DEBUG
135*0Sstevel@tonic-gate 	printf("Done\n");
136*0Sstevel@tonic-gate #endif
137*0Sstevel@tonic-gate }
138*0Sstevel@tonic-gate #endif
139*0Sstevel@tonic-gate 
140*0Sstevel@tonic-gate #ifdef DEBUG
141*0Sstevel@tonic-gate void
print_listofnames(list)142*0Sstevel@tonic-gate print_listofnames(list)
143*0Sstevel@tonic-gate listofnames *list;
144*0Sstevel@tonic-gate {
145*0Sstevel@tonic-gate 	if (list == NULL)
146*0Sstevel@tonic-gate 		printf("NULL\n");
147*0Sstevel@tonic-gate 	for (; list; list = list->nextname)
148*0Sstevel@tonic-gate 		printf("%s\n", list->name);
149*0Sstevel@tonic-gate }
150*0Sstevel@tonic-gate #endif
151