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1 /*
2  * Copyright (C) 2011 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include <sys/socket.h>
18 #include <netinet/in.h>
19 #include <errno.h>
20 #include <string.h>
21 #include <unistd.h>
22 #include <stddef.h>
23 #include <stdio.h>
24 #include "test_util.h"
25 
26 #ifdef __linux__
27 #include <time.h>
now_secs(void)28 double now_secs(void)
29 {
30     struct timespec  tm;
31     clock_gettime(CLOCK_MONOTONIC, &tm);
32     return (double)tm.tv_sec + (double)tm.tv_nsec/1e9;
33 }
34 #else
35 #include <sys/time.h>
now_secs(void)36 double now_secs(void)
37 {
38     struct timeval tv;
39     gettimeofday(&tv, NULL);
40     return tv.sec + (double)tv.usec/1e6;
41 }
42 #endif
43 
44 int
pipe_openSocket(Pipe * pipe,int port)45 pipe_openSocket( Pipe*  pipe, int port )
46 {
47     static int           fd;
48     struct sockaddr_in  addr;
49 
50     pipe->socket = -1;
51 
52     fd = socket( AF_INET, SOCK_STREAM, 0 );
53     if (fd < 0) {
54         fprintf(stderr, "%s: Can't create socket!!\n", __FUNCTION__);
55         return -1;
56     }
57 
58     memset(&addr, 0, sizeof(addr));
59     addr.sin_family      = AF_INET;
60     addr.sin_port        = htons(port);
61     addr.sin_addr.s_addr = htonl(0x0a000202);
62 
63     if ( connect(fd, (struct sockaddr*)&addr, sizeof(addr)) < 0 ) {
64         fprintf(stderr, "%s: Can't connect to tcp:local:%d: %s\n",
65                 __FUNCTION__, port, strerror(errno));
66         close(fd);
67         return -1;
68     }
69 
70     pipe->socket = fd;
71     return 0;
72 }
73 
74 int
pipe_openQemuPipe(Pipe * pipe,const char * pipename)75 pipe_openQemuPipe( Pipe*  pipe, const char* pipename )
76 {
77     pipe->socket = qemu_pipe_open(pipename);
78     if (pipe->socket < 0) {
79         fprintf(stderr, "%s: Could not open '%s' pipe: %s\n", __FUNCTION__, pipename, strerror(errno));
80         return -1;
81     }
82     return 0;
83 }
84 
85 int
pipe_send(Pipe * pipe,const void * buff,size_t bufflen)86 pipe_send( Pipe*  pipe, const void* buff, size_t  bufflen )
87 {
88     int ret;
89     const uint8_t* ptr = buff;
90     while (bufflen > 0) {
91         ret = write(pipe->socket, ptr, bufflen);
92         if (ret < 0) {
93             if (errno == EINTR)
94                 continue;
95             fprintf(stderr, "%s: error: %s\n", __FUNCTION__, strerror(errno));
96             return -1;
97         }
98         if (ret == 0) {
99             fprintf(stderr, "%s: disconnection!\n", __FUNCTION__);
100             return -1;
101         }
102         ptr     += ret;
103         bufflen -= ret;
104     }
105     return 0;
106 }
107 
108 int
pipe_recv(Pipe * pipe,void * buff,size_t bufflen)109 pipe_recv( Pipe*  pipe, void* buff, size_t bufflen )
110 {
111     int  ret;
112 
113     for (;;) {
114         ret = read(pipe->socket, buff, bufflen);
115         if (ret < 0) {
116             if (errno == EINTR)
117                 continue;
118             fprintf(stderr, "%s: error: %s\n", __FUNCTION__, strerror(errno));
119             return -1;
120         }
121         if (ret == 0) {
122             fprintf(stderr, "%s: disconnection!\n", __FUNCTION__);
123             return -1;
124         }
125         break;
126     }
127     return ret;
128 }
129 
130 void
pipe_close(Pipe * pipe)131 pipe_close( Pipe*  pipe )
132 {
133     if (pipe->socket >= 0) {
134         close(pipe->socket);
135         pipe->socket = -1;
136     }
137 }
138