/[jscoverage]/trunk/http-host.c
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Annotation of /trunk/http-host.c

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Revision 505 - (hide annotations)
Sat Jan 2 04:55:54 2010 UTC (9 years, 8 months ago) by siliconforks
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1 siliconforks 116 /*
2     http-host.c - thread-safe host lookup
3 siliconforks 505 Copyright (C) 2008, 2009, 2010 siliconforks.com
4 siliconforks 116
5     This program is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation; either version 2 of the License, or
8     (at your option) any later version.
9    
10     This program is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13     GNU General Public License for more details.
14    
15     You should have received a copy of the GNU General Public License along
16     with this program; if not, write to the Free Software Foundation, Inc.,
17     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18     */
19    
20     #include <config.h>
21    
22     #include "http-server.h"
23    
24     #include "util.h"
25    
26     int xgethostbyname(const char * host, struct in_addr * a) {
27 siliconforks 125 #if defined(__CYGWIN__) || defined(__MINGW32__)
28     /* gethostbyname is thread-safe */
29 siliconforks 118 struct hostent * p = gethostbyname(host);
30     if (p == NULL || p->h_addrtype != AF_INET) {
31     return -1;
32     }
33     *a = *((struct in_addr *) p->h_addr);
34     return 0;
35 siliconforks 129 #elif HAVE_GETADDRINFO
36     struct addrinfo hints;
37     hints.ai_flags = 0;
38     hints.ai_family = PF_INET;
39     hints.ai_socktype = 0;
40     hints.ai_protocol = 0;
41     hints.ai_addrlen = 0;
42     hints.ai_addr = NULL;
43     hints.ai_canonname = NULL;
44     hints.ai_next = NULL;
45     struct addrinfo * p;
46     int result = getaddrinfo(host, NULL, &hints, &p);
47     if (result != 0 || p == NULL) {
48     return -1;
49     }
50     if (p->ai_family != PF_INET) {
51     freeaddrinfo(p);
52     return -1;
53     }
54     struct sockaddr_in * address_and_port = (struct sockaddr_in *) p->ai_addr;
55     *a = address_and_port->sin_addr;
56     freeaddrinfo(p);
57     return 0;
58     #elif HAVE_GETHOSTBYNAME_R
59 siliconforks 116 struct hostent h;
60     struct hostent * p;
61     char * buffer;
62     size_t buffer_size;
63     int error;
64     int result;
65    
66     buffer_size = 1024;
67     buffer = xmalloc(buffer_size);
68     while ((result = gethostbyname_r(host, &h, buffer, buffer_size, &p, &error)) == ERANGE) {
69     buffer_size = mulst(buffer_size, 2);
70     buffer = xrealloc(buffer, buffer_size);
71     }
72     if (result != 0 || p == NULL || p->h_addrtype != AF_INET) {
73     free(buffer);
74     return -1;
75     }
76     *a = *((struct in_addr *) p->h_addr);
77     free(buffer);
78     return 0;
79 siliconforks 129 #else
80     #error "No thread-safe host lookup available"
81 siliconforks 118 #endif
82 siliconforks 116 }
83 siliconforks 125
84     #ifndef HAVE_INET_ATON
85     int inet_aton(const char * name, struct in_addr * a) {
86     unsigned long result = inet_addr(name);
87     if (result == INADDR_NONE) {
88     return 0;
89     }
90     else {
91     a->s_addr = result;
92     return 1;
93     }
94     }
95     #endif

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