* OpenDispense 2
* UCC (University [of WA] Computer Club) Electronic Accounting System
*
- * handler_doror.c - Door Relay code
+ * handler_door.c - Door Relay code
*
* This file is licenced under the 3-clause BSD Licence. See the file
* COPYING for full details.
*/
+#define DEBUG 1
+#define USE_POPEN 0
+
#include "common.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
+#include <signal.h>
+#include <unistd.h>
+#include <pty.h>
-#define DOOR_UNLOCKED_DELAY 10 // 10 seconds before it re-locks
+#define DOOR_UNLOCKED_DELAY 5 // Time in seconds before the door re-locks
// === IMPORTS ===
int Door_InitHandler();
int Door_CanDispense(int User, int Item);
int Door_DoDispense(int User, int Item);
+ int writes(int fd, const char *str);
+char *ReadStatus(int FD);
// === GLOBALS ===
tHandler gDoor_Handler = {
Door_CanDispense,
Door_DoDispense
};
-char *gsDoor_Password;
-char *gsDoor_Command;
-// int giDoor_SerialFD;
+char *gsDoor_SerialPort; // Set from config in main.c
// == CODE ===
int Door_InitHandler(void)
-{
- gsDoor_Command = malloc(sizeof("llogin door -w ")+strlen(gsDoor_Password));
- sprintf(gsDoor_Command, "llogin door -w %s", gsDoor_Password);
-
+{
return 0;
}
*/
int Door_CanDispense(int User, int Item)
{
+ #if DEBUG
+ printf("Door_CanDispense: (User=%i,Item=%i)\n", User, Item);
+ #endif
// Sanity please
- if( Item == 0 ) return -1;
+ if( Item != 0 ) return -1;
if( !(Bank_GetFlags(User) & USER_FLAG_DOORGROUP) )
+ {
+ #if DEBUG
+ printf("Door_CanDispense: User %i not in door\n", User);
+ #endif
return 1;
+ }
+
+ #if DEBUG
+ printf("Door_CanDispense: User %i can open the door\n", User);
+ #endif
return 0;
}
*/
int Door_DoDispense(int User, int Item)
{
- FILE *pipe;
+ int door_serial_handle;
+
+ #if DEBUG
+ printf("Door_DoDispense: (User=%i,Item=%i)\n", User, Item);
+ #endif
+
// Sanity please
if( Item != 0 ) return -1;
// Check if user is in door
if( !(Bank_GetFlags(User) & USER_FLAG_DOORGROUP) )
+ {
+ #if DEBUG
+ printf("Door_CanDispense: User %i not in door\n", User);
+ #endif
return 1;
+ }
- // llogin or other
- //pipe = popen(gsDoor_Command, "w");
- pipe = popen("llogin door -w -", "w");
- if( !pipe || pipe == (void*)-1 )
+ door_serial_handle = InitSerial(gsDoor_SerialPort, 115200);
+ if(door_serial_handle < 0) {
+ fprintf(stderr, "Unable to open door serial '%s'\n", gsDoor_SerialPort);
+ perror("Opening door port");
return -1;
+ }
+
+ // Disable local echo
+ {
+ struct termios info;
+ tcgetattr(door_serial_handle, &info);
+ info.c_cflag &= ~CLOCAL;
+ tcsetattr(door_serial_handle, TCSANOW, &info);
+ }
+
+// flush(door_serial_handle);
+
+ writes(door_serial_handle, "4;");
+
+#if 0
+ char *status = ReadStatus(door_serial_handle);
+ if( !status ) return -1;
+ if( strcmp(status, "Opening door") != 0 ) {
+ fprintf(stderr, "Unknown/unexpected door status '%s'\n", status);
+ return -1;
+ }
+#endif
+
+ close(door_serial_handle);
- fputs(gsDoor_Password, pipe); fputs("\n", pipe);
- fputs("ATH1\n", pipe);
- sleep(DOOR_UNLOCKED_DELAY);
- fputs("ATH0\n", pipe);
-
- pclose(pipe);
+ #if DEBUG
+ printf("Door_DoDispense: User %i opened door\n", User);
+ #endif
return 0;
}
+int writes(int fd, const char *str)
+{
+ int len = strlen(str);
+
+ if( len != write(fd, str, len) )
+ {
+ return 1;
+ }
+ return 0;
+}
+char *ReadStatus(int FD)
+{
+ char tmpbuf[32];
+ int len;
+ len = read(FD, tmpbuf, sizeof(tmpbuf)-1);
+ tmpbuf[len] = 0;
+ char *msg = strchr(tmpbuf, ',');
+ if( !msg ) {
+ fprintf(stderr, "Door returned malformed data (no ',')\n");
+ return NULL;
+ }
+ msg ++;
+ char *end = strchr(tmpbuf, ';');
+ if( !end ) {
+ fprintf(stderr, "Door returned malformed data (no ';')\n");
+ return NULL;
+ }
+ *end = '\0';
+
+ return strdup(msg);
+}