1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD: getservbyname.c,v 1.9 2004/10/25 03:09:01 millert Exp $";
#endif /* LIBC_SCCS and not lint */
#include <netdb.h>
#include <stdio.h>
#include <string.h>
int
getservbyname_r(const char *name, const char *proto, struct servent *se,
struct servent_data *sd)
{
char **cp;
int error;
setservent_r(sd->stayopen, sd);
while ((error = getservent_r(se, sd)) == 0) {
if (strcmp(name, se->s_name) == 0)
goto gotname;
for (cp = se->s_aliases; *cp; cp++)
if (strcmp(name, *cp) == 0)
goto gotname;
continue;
gotname:
if (proto == 0 || strcmp(se->s_proto, proto) == 0)
break;
}
if (!sd->stayopen && sd->fp != NULL) {
fclose(sd->fp);
sd->fp = NULL;
}
return (error);
}
struct servent *
getservbyname(const char *name, const char *proto)
{
extern struct servent_data _servent_data;
static struct servent serv;
if (getservbyname_r(name, proto, &serv, &_servent_data) != 0)
return (NULL);
return (&serv);
}
|
