Door handling fixed (for now)
authorJohn Hodge <[email protected]>
Sat, 19 Feb 2011 11:12:53 +0000 (19:12 +0800)
committerJohn Hodge <[email protected]>
Sat, 19 Feb 2011 11:12:53 +0000 (19:12 +0800)
src/server/handler_door.c

index d8c0a1f..cc66945 100644 (file)
@@ -21,7 +21,7 @@
 #include <sys/wait.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 ===
 
@@ -112,18 +112,7 @@ int Door_DoDispense(int User, int Item)
        
        giDoor_ChildStatus = 0; // Set child status to zero
        parentPid = getpid();
-       #if 0
-       // Create stdin/stdout
-       if( pipe(stdin_pair) || pipe(stdout_pair) )
-       {
-               perror("pipe");
-               return -1;
-       }
-       
-       childPid = fork();
-       #else
        childPid = forkpty(&child_stdin_fd, NULL, NULL, NULL);
-       #endif
        
        if( childPid < 0 )
        {
@@ -134,97 +123,75 @@ int Door_DoDispense(int User, int Item)
        // Child process
        if( childPid == 0 )
        {
-               #if 0
-               // Close write end of stdin, and set it to #0
-               close(stdin_pair[1]);   dup2(stdin_pair[0], 0);
-               // Close read end of stdout, and set it to #1
-               close(stdout_pair[0]);  dup2(stdout_pair[1], 1);
-               #endif
-               
-               //execl("/bin/sh", "sh", "-c", "llogin door -w-", NULL);
                execl("/usr/bin/llogin", "llogin", "door", "-w-", NULL);
                perror("execl");
                exit(-1);
        }
        
-       #if 0
-       child_stdin = fdopen(stdin_pair[1], "w");
-       close(stdin_pair[0]);   // child stdin read
-       close(stdout_pair[1]);  // child stdout write
-       #else
        child_stdin = fdopen(child_stdin_fd, "w");
-       #endif
-       
+
+       int read_child_output() 
        {
                char    buf[1024];
                 int    len;
-               #if 0
-               if( giDoor_ChildStatus || (len = read(stdout_pair[0], buf, sizeof buf)) < 0)
-               #else
                if( giDoor_ChildStatus || (len = read(child_stdin_fd, buf, sizeof buf)) < 0)
-               #endif
                {
                        #if DEBUG
-                       int child_exit;
-                       waitpid(childPid, &child_exit, 0);
-                       printf("Door_DoDispense: fread fail (child status %i)\n", child_exit);
+                       printf("Door_DoDispense: fread fail\n");
                        #endif
                        return -1;
                }
                buf[len] = '\0';
                
-               #if DEBUG
+               #if DEBUG > 1
                printf("Door_DoDispense: buf = %i '%s'\n", len, buf);
                #endif
+               return 0;
        }
+
+       if( read_child_output() )       return -1;
        
        // Send password
        if( giDoor_ChildStatus || fputs(gsDoor_Password, child_stdin) <= 0 ) {
-               #if DEBUG
-               int child_exit;
-               waitpid(childPid, &child_exit, 0);
-               printf("Door_DoDispense: fputs password fail (child status %i)\n", child_exit);
-               #endif
+               printf("Door_DoDispense: fputs password fail\n");
                return -1;
        }
        fputs("\n", child_stdin);
+       fflush(child_stdin);
        
+       if( read_child_output() )       return -1;
        
        #if DEBUG
        printf("Door_DoDispense: Door unlock\n");
        #endif
-       
        // ATH1 - Unlock door
-       if( giDoor_ChildStatus || fputs("ATH1\n", child_stdin) <= 0) {
+       if( giDoor_ChildStatus || fputs("ATH1\n", child_stdin) == 0) {
                #if DEBUG
-               printf("Door_DoDispense: fputs unlock\n");
+               printf("Door_DoDispense: fputs unlock failed (or child terminated)\n");
                #endif
                return -1;
        }
+       fflush(child_stdin);
        
        // Wait before re-locking
        sleep(DOOR_UNLOCKED_DELAY);
 
-
        #if DEBUG
        printf("Door_DoDispense: Door re-lock\n");
        #endif
-
        // Re-lock the door (and quit llogin)
-       if( giDoor_ChildStatus || fputs("ATH0\n\x1D", child_stdin) == 0 ) {
-               #if DEBUG
-               printf("Door_DoDispense: fputs lock\n");
-               #endif
+       if( giDoor_ChildStatus || fputs("ATH0\n", child_stdin) == 0 ) {
+               fprintf(stderr, "Oh F**k, the door may be stuck unlocked, someone use llogin!\n");
                return -1;
        }
+       fflush(child_stdin);
+       fputs("\x1D", child_stdin);
+
+       // Wait a little so llogin can send the lock message
+       sleep(1);
        
        fclose(child_stdin);
-       #if 0
-       close(stdin_pair[1]);   // child stdin write
-       close(stdout_pair[0]);  // child stdout read
-       #else
        close(child_stdin_fd);
-       #endif
        
        #if DEBUG
        printf("Door_DoDispense: User %i opened door\n", User);

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