2 * Copyright (c) 1995 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * accept a connection on `s' and pretend it's served by inetd.
48 s2
= accept(s
, NULL
, NULL
);
52 dup2(s2
, STDIN_FILENO
);
53 dup2(s2
, STDOUT_FILENO
);
54 /* dup2(s2, STDERR_FILENO); */
59 * Listen on a specified port, emulating inetd.
62 void ROKEN_LIB_FUNCTION
63 mini_inetd_addrinfo (struct addrinfo
*ai
)
69 fd_set orig_read_set
, read_set
;
72 for (nalloc
= 0, a
= ai
; a
!= NULL
; a
= a
->ai_next
)
75 fds
= malloc (nalloc
* sizeof(*fds
));
77 errx (1, "mini_inetd: out of memory");
79 FD_ZERO(&orig_read_set
);
81 for (i
= 0, a
= ai
; a
!= NULL
; a
= a
->ai_next
) {
82 fds
[i
] = socket (a
->ai_family
, a
->ai_socktype
, a
->ai_protocol
);
85 socket_set_reuseaddr (fds
[i
], 1);
86 if (bind (fds
[i
], a
->ai_addr
, a
->ai_addrlen
) < 0) {
87 warn ("bind af = %d", a
->ai_family
);
91 if (listen (fds
[i
], SOMAXCONN
) < 0) {
92 warn ("listen af = %d", a
->ai_family
);
96 if (fds
[i
] >= FD_SETSIZE
)
97 errx (1, "fd too large");
98 FD_SET(fds
[i
], &orig_read_set
);
99 max_fd
= max(max_fd
, fds
[i
]);
103 errx (1, "no sockets");
107 read_set
= orig_read_set
;
109 ret
= select (max_fd
+ 1, &read_set
, NULL
, NULL
, NULL
);
110 if (ret
< 0 && errno
!= EINTR
)
114 for (i
= 0; i
< n
; ++i
)
115 if (FD_ISSET (fds
[i
], &read_set
)) {
117 for (i
= 0; i
< n
; ++i
)
125 void ROKEN_LIB_FUNCTION
126 mini_inetd (int port
)
129 struct addrinfo
*ai
, hints
;
130 char portstr
[NI_MAXSERV
];
132 memset (&hints
, 0, sizeof(hints
));
133 hints
.ai_flags
= AI_PASSIVE
;
134 hints
.ai_socktype
= SOCK_STREAM
;
135 hints
.ai_family
= PF_UNSPEC
;
137 snprintf (portstr
, sizeof(portstr
), "%d", ntohs(port
));
139 error
= getaddrinfo (NULL
, portstr
, &hints
, &ai
);
141 errx (1, "getaddrinfo: %s", gai_strerror (error
));
143 mini_inetd_addrinfo(ai
);