1 /* $OpenBSD: distopt.c,v 1.14 2021/06/22 20:19:28 jmc Exp $ */
2
3 /*
4 * Copyright (c) 1983 Regents of the University of California.
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 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <stdlib.h>
33 #include <string.h>
34
35 #include "client.h"
36
37 /*
38 * Dist Option functions
39 */
40
41
42 /*
43 * Distfile Option Information
44 */
45 struct distoptinfo {
46 opt_t do_value;
47 char *do_name;
48 char *do_arg;
49 size_t arg_size;
50 } distoptinfo[] = {
51 { DO_CHKNFS, "chknfs", NULL, 0},
52 { DO_CHKREADONLY, "chkreadonly", NULL, 0},
53 { DO_CHKSYM, "chksym", NULL, 0},
54 { DO_COMPARE, "compare", NULL, 0},
55 { DO_DEFGROUP, "defgroup", defgroup, sizeof(defgroup) },
56 { DO_DEFOWNER, "defowner", defowner, sizeof(defowner) },
57 { DO_FOLLOW, "follow", NULL, 0},
58 { DO_HISTORY, "history", NULL, 0},
59 { DO_IGNLNKS, "ignlnks", NULL, 0},
60 { DO_NOCHKGROUP, "nochkgroup", NULL, 0},
61 { DO_NOCHKMODE, "nochkmode", NULL, 0},
62 { DO_NOCHKOWNER, "nochkowner", NULL, 0},
63 { DO_NODESCEND, "nodescend", NULL, 0},
64 { DO_NOEXEC, "noexec", NULL, 0},
65 { DO_NUMCHKGROUP, "numchkgroup", NULL, 0},
66 { DO_NUMCHKOWNER, "numchkowner", NULL, 0},
67 { DO_QUIET, "quiet", NULL, 0},
68 { DO_REMOVE, "remove", NULL, 0},
69 { DO_SAVETARGETS, "savetargets", NULL, 0},
70 { DO_SPARSE, "sparse", NULL, 0},
71 { DO_UPDATEPERM, "updateperm", NULL, 0},
72 { DO_VERIFY, "verify", NULL, 0},
73 { DO_WHOLE, "whole", NULL, 0},
74 { DO_YOUNGER, "younger", NULL, 0},
75 { 0 },
76 };
77
78 /*
79 * Get a Distfile Option entry named "name".
80 */
81 static struct distoptinfo *
getdistopt(char * name,int * len)82 getdistopt(char *name, int *len)
83 {
84 int i;
85
86 for (i = 0; distoptinfo[i].do_name; ++i)
87 if (strncasecmp(name, distoptinfo[i].do_name,
88 *len = strlen(distoptinfo[i].do_name)) == 0)
89 return(&distoptinfo[i]);
90
91 return(NULL);
92 }
93
94 /*
95 * Parse a dist option string. Set option flags to optptr.
96 * If doerrs is true, print out own error message. Returns
97 * 0 on success.
98 */
99 int
parsedistopts(char * str,opt_t * optptr,int doerrs)100 parsedistopts(char *str, opt_t *optptr, int doerrs)
101 {
102 char *string, *optstr;
103 struct distoptinfo *distopt;
104 int len;
105
106 /* strtok() is destructive */
107 string = xstrdup(str);
108
109 for (optstr = strtok(string, ","); optstr;
110 optstr = strtok(NULL, ",")) {
111 /* Try Yes */
112 if ((distopt = getdistopt(optstr, &len)) != NULL) {
113 FLAG_ON(*optptr, distopt->do_value);
114 if (distopt->do_arg && optstr[len] == '=')
115 (void) strlcpy(distopt->do_arg,
116 &optstr[len + 1], distopt->arg_size);
117 continue;
118 }
119
120 /* Try No */
121 if ((distopt = getdistopt(optstr+2, &len)) != NULL) {
122 FLAG_OFF(*optptr, distopt->do_value);
123 continue;
124 }
125
126 if (doerrs)
127 error("Dist option \"%s\" is not valid.", optstr);
128 }
129
130 if (string)
131 (void) free(string);
132
133 return(nerrs);
134 }
135
136 /*
137 * Get a list of the Distfile Option Entries for each enabled
138 * value in "opts".
139 */
140 char *
getondistoptlist(opt_t opts)141 getondistoptlist(opt_t opts)
142 {
143 int i;
144 static char buf[1024];
145
146 for (i = 0, buf[0] = CNULL; distoptinfo[i].do_name; ++i) {
147 if (!IS_ON(opts, distoptinfo[i].do_value))
148 continue;
149
150 if (buf[0] == CNULL)
151 (void) strlcpy(buf, distoptinfo[i].do_name, sizeof buf);
152 else {
153 (void) strlcat(buf, ",", sizeof buf);
154 (void) strlcat(buf, distoptinfo[i].do_name, sizeof buf);
155 }
156 if (distoptinfo[i].do_arg) {
157 (void) strlcat(buf, "=", sizeof buf);
158 (void) strlcat(buf, distoptinfo[i].do_arg, sizeof buf);
159 }
160 }
161
162 return(buf);
163 }
164
165