xref: /netbsd-src/usr.bin/ypcat/ypcat.c (revision c2f76ff004a2cb67efe5b12d97bd3ef7fe89e18d)
1 /* $NetBSD: ypcat.c,v 1.16 2011/01/12 18:51:42 christos Exp $	*/
2 
3 /*
4  * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@fsa.ca>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
17  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 #ifndef lint
31 __RCSID("$NetBSD: ypcat.c,v 1.16 2011/01/12 18:51:42 christos Exp $");
32 #endif
33 
34 #include <sys/param.h>
35 #include <sys/types.h>
36 #include <sys/socket.h>
37 #include <sys/errno.h>
38 #include <ctype.h>
39 #include <err.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <unistd.h>
44 
45 #include <rpc/rpc.h>
46 #include <rpc/xdr.h>
47 #include <rpcsvc/yp_prot.h>
48 #include <rpcsvc/ypclnt.h>
49 
50 #include "ypalias_init.h"
51 
52 static int	printit(int, char *, int, char *, int, char *);
53 static void	usage(void) __attribute__((__noreturn__));
54 
55 static int	compressspace;
56 
57 
58 int
59 main(int argc, char *argv[])
60 {
61 	char *domainname;
62 	struct ypall_callback ypcb;
63 	const char *inmap;
64 	int notrans;
65 	int c, r;
66 	size_t i;
67 	const struct ypalias *ypaliases;
68 	int key;
69 
70 	setprogname(*argv);
71 	domainname = NULL;
72 	notrans = key = 0;
73 	ypaliases = ypalias_init();
74 	while((c = getopt(argc, argv, "d:kstx")) != -1) {
75 		switch (c) {
76 		case 'd':
77 			domainname = optarg;
78 			break;
79 
80 		case 'k':
81 			key++;
82 			break;
83 
84 		case 's':
85 			compressspace++;
86 			break;
87 
88 		case 'x':
89 			for (i = 0; ypaliases[i].alias; i++)
90 				printf("Use \"%s\" for \"%s\"\n",
91 				    ypaliases[i].alias,
92 				    ypaliases[i].name);
93 			return 0;
94 
95 		case 't':
96 			notrans++;
97 			break;
98 
99 		default:
100 			usage();
101 		}
102 	}
103 
104 	argc -= optind;
105 	argv += optind;
106 
107 	if (argc != 1)
108 		usage();
109 
110 	if (domainname == NULL)
111 		yp_get_default_domain(&domainname);
112 
113 	inmap = argv[0];
114 	if (notrans == 0) {
115 		for (i = 0; ypaliases[i].alias; i++)
116 			if (strcmp(inmap, ypaliases[i].alias) == 0)
117 				inmap = ypaliases[i].name;
118 	}
119 
120 	ypcb.foreach = printit;
121 	ypcb.data = key ? (void *)&key : NULL;
122 
123 	r = yp_all(domainname, inmap, &ypcb);
124 	switch (r) {
125 	case 0:
126 		break;
127 
128 	case YPERR_YPBIND:
129 		errx(1, "not running ypbind");
130 
131 	default:
132 		errx(1, "no such map %s.  Reason: %s", inmap, yperr_string(r));
133 	}
134 	return 0;
135 }
136 
137 static int
138 printit(int instatus, char *inkey, int inkeylen, char *inval,
139     int invallen, char *indata)
140 {
141 
142 	if (instatus != YP_TRUE)
143 		return instatus;
144 	if (indata)
145 		(void)printf("%*.*s", inkeylen, inkeylen, inkey);
146 	if (invallen) {
147 		if (indata)
148 			(void)putc(' ', stdout);
149 		if (compressspace) {
150 			int i;
151 			int hadspace = 0;
152 
153 			for (i = 0; i < invallen; i++) {
154 				if (isspace((unsigned char)inval[i])) {
155 					if (hadspace)
156 						continue;
157 					hadspace = 1;
158 					(void)putc(' ', stdout);
159 				} else {
160 					hadspace = 0;
161 					(void)putc(inval[i], stdout);
162 				}
163 			}
164 		} else
165 			(void)printf("%*.*s", invallen, invallen, inval);
166 	}
167 	(void)putc('\n', stdout);
168 	return 0;
169 }
170 
171 static void
172 usage(void)
173 {
174 
175 	(void)fprintf(stderr, "Usage: %s [-kst] [-d domainname] mapname\n",
176 	    getprogname());
177 	(void)fprintf(stderr, "       %s -x\n", getprogname());
178 	exit(1);
179 }
180