GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/rpc/getrpcent.c Lines: 0 78 0.0 %
Date: 2017-11-13 Branches: 0 62 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: getrpcent.c,v 1.21 2015/09/13 15:36:56 guenther Exp $ */
2
3
/*
4
 * Copyright (c) 2010, Oracle America, Inc.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions are
8
 * met:
9
 *
10
 *     * Redistributions of source code must retain the above copyright
11
 *       notice, this list of conditions and the following disclaimer.
12
 *     * Redistributions in binary form must reproduce the above
13
 *       copyright notice, this list of conditions and the following
14
 *       disclaimer in the documentation and/or other materials
15
 *       provided with the distribution.
16
 *     * Neither the name of the "Oracle America, Inc." nor the names of its
17
 *       contributors may be used to endorse or promote products derived
18
 *       from this software without specific prior written permission.
19
 *
20
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23
 *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24
 *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25
 *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26
 *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
27
 *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28
 *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29
 *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30
 *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32
 */
33
34
#include <stdio.h>
35
#include <stdlib.h>
36
#include <sys/types.h>
37
#include <string.h>
38
#include <limits.h>
39
#include <rpc/rpc.h>
40
41
/*
42
 * Internet version.
43
 */
44
static struct rpcdata {
45
	FILE	*rpcf;
46
	int	stayopen;
47
#define	MAXALIASES	35
48
	char	*rpc_aliases[MAXALIASES];
49
	struct	rpcent rpc;
50
	char	line[BUFSIZ+1];
51
} *rpcdata;
52
53
static	struct rpcent *interpret(char *val, int len);
54
55
static char RPCDB[] = "/etc/rpc";
56
57
static struct rpcdata *
58
_rpcdata(void)
59
{
60
	struct rpcdata *d = rpcdata;
61
62
	if (d == NULL) {
63
		d = calloc(1, sizeof (struct rpcdata));
64
		rpcdata = d;
65
	}
66
	return (d);
67
}
68
69
struct rpcent *
70
getrpcbynumber(int number)
71
{
72
	struct rpcdata *d = _rpcdata();
73
	struct rpcent *p;
74
75
	if (d == NULL)
76
		return (0);
77
	setrpcent(0);
78
	while ((p = getrpcent())) {
79
		if (p->r_number == number)
80
			break;
81
	}
82
	endrpcent();
83
	return (p);
84
}
85
86
struct rpcent *
87
getrpcbyname(char *name)
88
{
89
	struct rpcent *rpc;
90
	char **rp;
91
92
	setrpcent(0);
93
	while ((rpc = getrpcent())) {
94
		if (strcmp(rpc->r_name, name) == 0)
95
			goto done;
96
		for (rp = rpc->r_aliases; *rp != NULL; rp++) {
97
			if (strcmp(*rp, name) == 0)
98
				goto done;
99
		}
100
	}
101
done:
102
	endrpcent();
103
	return (rpc);
104
}
105
106
void
107
setrpcent(int f)
108
{
109
	struct rpcdata *d = _rpcdata();
110
111
	if (d == NULL)
112
		return;
113
	if (d->rpcf == NULL)
114
		d->rpcf = fopen(RPCDB, "re");
115
	else
116
		rewind(d->rpcf);
117
	d->stayopen |= f;
118
}
119
DEF_WEAK(setrpcent);
120
121
void
122
endrpcent(void)
123
{
124
	struct rpcdata *d = _rpcdata();
125
126
	if (d == NULL)
127
		return;
128
	if (d->rpcf && !d->stayopen) {
129
		fclose(d->rpcf);
130
		d->rpcf = NULL;
131
	}
132
}
133
DEF_WEAK(endrpcent);
134
135
struct rpcent *
136
getrpcent(void)
137
{
138
	struct rpcdata *d = _rpcdata();
139
140
	if (d == NULL)
141
		return(NULL);
142
	if (d->rpcf == NULL && (d->rpcf = fopen(RPCDB, "re")) == NULL)
143
		return (NULL);
144
	/* -1 so there is room to append a \n below */
145
        if (fgets(d->line, sizeof(d->line) - 1, d->rpcf) == NULL)
146
		return (NULL);
147
	return (interpret(d->line, strlen(d->line)));
148
}
149
DEF_WEAK(getrpcent);
150
151
static struct rpcent *
152
interpret(char *val, int len)
153
{
154
	const char *errstr;
155
	struct rpcdata *d = _rpcdata();
156
	char *p;
157
	char *cp, *num, **q;
158
159
	if (d == NULL)
160
		return (0);
161
	strlcpy(d->line, val, sizeof(d->line));
162
	p = d->line;
163
	p[len] = '\n';
164
	if (*p == '#')
165
		return (getrpcent());
166
	cp = strpbrk(p, "#\n");
167
	if (cp == NULL)
168
		return (getrpcent());
169
	*cp = '\0';
170
	cp = strpbrk(p, " \t");
171
	if (cp == NULL)
172
		return (getrpcent());
173
	*cp++ = '\0';
174
	/* THIS STUFF IS INTERNET SPECIFIC */
175
	d->rpc.r_name = d->line;
176
	while (*cp == ' ' || *cp == '\t')
177
		cp++;
178
	num = cp;
179
	cp = strpbrk(cp, " \t");
180
	if (cp != NULL)
181
		*cp++ = '\0';
182
	d->rpc.r_number = strtonum(num, 0, INT_MAX, &errstr);
183
	if (errstr)
184
		return (0);
185
	q = d->rpc.r_aliases = d->rpc_aliases;
186
	while (cp && *cp) {
187
		if (*cp == ' ' || *cp == '\t') {
188
			cp++;
189
			continue;
190
		}
191
		if (q < &(d->rpc_aliases[MAXALIASES - 1]))
192
			*q++ = cp;
193
		cp = strpbrk(cp, " \t");
194
		if (cp != NULL)
195
			*cp++ = '\0';
196
	}
197
	*q = NULL;
198
	return (&d->rpc);
199
}
200