1 : /*
2 : * Copyright (c) 1995, 1996, 1997, 1998 Kungliga Tekniska Högskolan
3 : * (Royal Institute of Technology, Stockholm, Sweden).
4 : * All rights reserved.
5 : *
6 : * Redistribution and use in source and binary forms, with or without
7 : * modification, are permitted provided that the following conditions
8 : * are met:
9 : *
10 : * 1. Redistributions of source code must retain the above copyright
11 : * notice, this list of conditions and the following disclaimer.
12 : *
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.
16 : *
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.
20 : *
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
31 : * SUCH DAMAGE.
32 : */
33 :
34 : #include <config.h>
35 :
36 : #include "roken.h"
37 :
38 : /*
39 : * Like write but never return partial data.
40 : */
41 :
42 : #ifndef _WIN32
43 :
44 : ROKEN_LIB_FUNCTION ssize_t ROKEN_LIB_CALL
45 : net_write (rk_socket_t fd, const void *buf, size_t nbytes)
46 0 : {
47 0 : const char *cbuf = (const char *)buf;
48 : ssize_t count;
49 0 : size_t rem = nbytes;
50 :
51 0 : while (rem > 0) {
52 0 : count = write (fd, cbuf, rem);
53 0 : if (count < 0) {
54 0 : if (errno == EINTR)
55 0 : continue;
56 : else
57 0 : return count;
58 : }
59 0 : cbuf += count;
60 0 : rem -= count;
61 : }
62 0 : return nbytes;
63 : }
64 :
65 : #else
66 :
67 : ROKEN_LIB_FUNCTION ssize_t ROKEN_LIB_CALL
68 : net_write(rk_socket_t sock, const void *buf, size_t nbytes)
69 : {
70 : const char *cbuf = (const char *)buf;
71 : ssize_t count;
72 : size_t rem = nbytes;
73 :
74 : while (rem > 0) {
75 : count = send (sock, cbuf, rem, 0);
76 : if (count < 0) {
77 : if (errno == EINTR)
78 : continue;
79 : else
80 : return count;
81 : }
82 : cbuf += count;
83 : rem -= count;
84 : }
85 : return nbytes;
86 : }
87 :
88 : #endif
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