8 #include <netinet/in.h>
10 #include <sys/socket.h>
12 #include <sys/types.h>
15 #include "interface.h"
24 void killHandler(int i
)
26 printf("%i caught, Bye...\n", i
);
30 void usage(FILE *o
, char *arg0
){
31 fprintf(o
, "Usage: %s [opts]\n\nOptions\n"
32 "-p PORT Custom port number, default: 8123\n" , arg0
);
36 if (gettimeofday(&tv1
, NULL
) == -1)
38 return tv1
.tv_sec
*1000 + tv1
.tv_usec
/1000;
41 bool input_available(void){
48 if (select(fd
+1, &fds
, NULL
, NULL
, &tv
) == -1)
50 if(!FD_ISSET(fd
, &fds
))
55 uint8_t read_byte(void)
61 void write_byte(uint8_t b
)
66 void write_dpin(uint8_t i
, bool b
)
68 debug("dwrite %d: %d", i
, b
);
73 bool read_dpin(uint8_t i
)
80 void write_apin(uint8_t i
, uint8_t a
)
82 debug("awrite %d: %d", i
, a
);
87 uint8_t read_apin(uint8_t i
)
99 void led_on(uint8_t i
)
101 debug("led %d on\n", i
);
105 void led_off(uint8_t i
)
107 debug("led %d off\n", i
);
113 int port
= 8123, opti
= 1;
114 //Register signal handler
115 if(signal(SIGINT
, killHandler
) == SIG_ERR
){
116 die("Couldn't register signal handler...");
118 if(signal(SIGTERM
, killHandler
) == SIG_ERR
){
119 die("Couldn't register signal handler...");
121 //Command line arguments
123 if(strcmp((*gargv
)+opti
, "-h") == 0){
124 usage(stdout
, gargv
[0]);
126 } else if(strcmp(gargv
[opti
], "-p") == 0 && opti
+1<gargc
){
127 port
= atoi(gargv
[++opti
]);
129 die("Port numbers are > 1");
131 usage(stderr
, gargv
[0]);
137 //Open file descriptors
138 struct sockaddr_in sa
;
140 memset(&sa
, 0, sizeof(sa
));
141 sa
.sin_family
= AF_INET
;
142 sa
.sin_addr
.s_addr
= INADDR_ANY
;
143 sa
.sin_port
= htons(port
);
145 if((sock_fd
= socket(AF_INET
, SOCK_STREAM
, 0)) == -1)
147 if(bind(sock_fd
, (struct sockaddr
*)&sa
, sizeof(sa
)) == -1)
149 if(listen(sock_fd
, 10) == -1)
152 printf("Listening on %d\n", port
);
154 if((fd
= accept(sock_fd
, (struct sockaddr
*)NULL
, NULL
)) == -1)
158 void debug(char *fmt
, ...)
162 vfprintf(stderr
, fmt
, ap
);
163 fprintf(stderr
, "\n");
173 void die(char *fmt
, ...)
177 vfprintf(stderr
, fmt
, ap
);