int Door_InitHandler();
int Door_CanDispense(int User, int Item);
int Door_DoDispense(int User, int Item);
-void Door_int_SIGCHLDHandler(int signum);
// === GLOBALS ===
tHandler gDoor_Handler = {
Door_DoDispense
};
char *gsDoor_Password = "";
-volatile int giDoor_ChildTerminated;
// == CODE ===
int Door_InitHandler(void)
{
- signal(SIGCHLD, Door_int_SIGCHLDHandler);
return 0;
}
int stdin_pair[2];
int stdout_pair[2];
pid_t childPid;
- pid_t parent_pid;
#endif
#if DEBUG
return -1;
}
- parent_pid = getpid();
childPid = fork();
if( childPid < 0 )
close(stdout_pair[0]); dup2(stdout_pair[1], 1);
execl("/bin/sh", "sh", "-c", "llogin door -w-", NULL);
- kill(parent_pid, SIGCHLD);
perror("execl");
exit(-1);
}
}
#endif
- if(fread(buf, 1, 512, child_stdin) == 0) return -1;
+ if(fread(buf, 1, 512, child_stdin) == 0) {
+ #if DEBUG
+ printf("Door_DoDispense: fread fail\n");
+ #endif
+ return -1;
+ }
// Send password
- if( fputs(gsDoor_Password, child_stdin) <= 0 ) return -1;
+ if( fputs(gsDoor_Password, child_stdin) <= 0 ) {
+ #if DEBUG
+ printf("Door_DoDispense: fputs password\n");
+ #endif
+ return -1;
+ }
fputs("\n", child_stdin);
#endif
// ATH1 - Unlock door
- if( fputs("ATH1\n", child_stdin) <= 0) return -1;
+ if( fputs("ATH1\n", child_stdin) <= 0) {
+ #if DEBUG
+ printf("Door_DoDispense: fputs unlock\n");
+ #endif
+ return -1;
+ }
// Wait before re-locking
sleep(DOOR_UNLOCKED_DELAY);
#endif
// Re-lock the door
- if( fputs("ATH0\n", child_stdin) <= 0 ) return -1;
+ if( fputs("ATH0\n", child_stdin) <= 0 ) {
+ #if DEBUG
+ printf("Door_DoDispense: fputs lock\n");
+ #endif
+ return -1;
+ }
#if !USE_POPEN
fclose(child_stdin);
return 0;
}
-void Door_int_SIGCHLDHandler(int signum)
-{
- signum = 0; // Snut up
- giDoor_ChildTerminated = 1;
-}
-