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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/* $Id: xiowrite.c,v 1.22 2005/09/05 06:45:41 gerhard Exp $ */
/* Copyright Gerhard Rieger 2001-2005 */
/* Published under the GNU General Public License V.2, see file COPYING */
/* this is the source of the extended write function */
#include "xiosysincludes.h"
#include "xioopen.h"
#include "xio-readline.h"
#include "xio-openssl.h"
/* ...
on return value < 0: errno reflects the value from write() */
ssize_t xiowrite(xiofile_t *file, const void *buff, size_t bytes) {
ssize_t writt;
struct single *pipe;
int _errno;
if (file->tag == XIO_TAG_INVALID) {
Error("xiowrite(): invalid file descriptor");
errno = EINVAL;
return -1;
}
if (file->tag == XIO_TAG_DUAL) {
pipe = &file->dual.stream[1]->stream;
if (pipe->tag == XIO_TAG_INVALID) {
Error("xiowrite(): invalid file descriptor");
errno = EINVAL;
return -1;
}
} else {
pipe = &file->stream;
}
#if WITH_READLINE
/* try to extract a prompt from the write data */
if (pipe->dtype == DATA_READLINE) {
xioscan_readline(pipe, buff, bytes);
}
#endif /* WITH_READLINE */
if (pipe->dtype == DATA_STREAM || pipe->dtype == DATA_READLINE ||
pipe->dtype == DATA_PTY) {
do {
writt = Write(pipe->fd, buff, bytes);
} while (writt < 0 && errno == EINTR);
if (writt < 0) {
_errno = errno;
switch (_errno) {
case EPIPE:
Notice4("write(%d, %p, "F_Zu"): %s",
pipe->fd, buff, bytes, strerror(_errno));
break;
#if 1
case ECONNRESET:
Warn4("write(%d, %p, "F_Zu"): %s",
pipe->fd, buff, bytes, strerror(_errno));
break;
#endif
default:
Error4("write(%d, %p, "F_Zu"): %s",
pipe->fd, buff, bytes, strerror(_errno));
}
errno = _errno;
return -1;
}
if ((size_t)writt < bytes) {
Warn2("write() only wrote "F_Zu" of "F_Zu" bytes",
writt, bytes);
}
#if WITH_SOCKET
} else if (pipe->dtype == DATA_RECV) {
/*union {
char space[sizeof(struct sockaddr_un)];
struct sockaddr sa;
} from;*/
/*socklen_t fromlen;*/
do {
writt = Sendto(pipe->fd, buff, bytes, 0,
&pipe->peersa.soa, pipe->salen);
} while (writt < 0 && errno == EINTR);
if (writt < 0) {
char infobuff[256];
_errno = errno;
Error6("sendto(%d, %p, "F_Zu", 0, %s, "F_socklen"): %s",
pipe->fd, buff, bytes,
sockaddr_info(&pipe->peersa.soa,
infobuff, sizeof(infobuff)),
pipe->salen, strerror(_errno));
errno = _errno;
return -1;
}
if ((size_t)writt < bytes) {
char infobuff[256];
Warn7("sendto(%d, %p, "F_Zu", 0, %s, "F_socklen") only wrote "F_Zu" of "F_Zu" bytes",
pipe->fd, buff, bytes,
sockaddr_info(&pipe->peersa.soa,
infobuff, sizeof(infobuff)),
pipe->salen, writt, bytes);
} else {
}
#endif /* WITH_SOCKET */
} else if (pipe->dtype == DATA_PIPE) {
do {
writt = Write(pipe->para.bipipe.fdout, buff, bytes);
} while (writt < 0 && errno == EINTR);
_errno = errno;
if (writt < 0) {
Error4("write(%d, %p, "F_Zu"): %s",
pipe->para.bipipe.fdout, buff, bytes, strerror(_errno));
errno = _errno;
return -1;
}
if ((size_t)writt < bytes) {
Warn2("write() only wrote "F_Zu" of "F_Zu" bytes",
writt, bytes);
}
} else if (pipe->dtype == DATA_2PIPE) {
do {
writt = Write(pipe->para.exec.fdout, buff, bytes);
} while (writt < 0 && errno == EINTR);
_errno = errno;
if (writt < 0) {
Error4("write(%d, %p, "F_Zu"): %s",
pipe->para.exec.fdout, buff, bytes, strerror(_errno));
errno = _errno;
return -1;
}
if ((size_t)writt < bytes) {
Warn2("write() only processed "F_Zu" of "F_Zu" bytes",
writt, bytes);
}
#if WITH_OPENSSL
} else if (pipe->dtype == DATA_OPENSSL) {
/* this function prints its own error messages */
return xiowrite_openssl(pipe, buff, bytes);
#endif /* WITH_OPENSSL */
} else {
Error1("xiowrite(): bad data type specification %d", pipe->dtype);
errno = EINVAL;
return -1;
}
return writt;
}
|
