/[rdesktop]/sourceforge.net/trunk/rdesktop/parallel.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 608 by astrand, Sun Feb 15 21:19:28 2004 UTC revision 631 by n-ki, Fri Mar 5 06:48:08 2004 UTC
# Line 7  Line 7 
7  #include "rdesktop.h"  #include "rdesktop.h"
8  #include <unistd.h>  #include <unistd.h>
9  #include <fcntl.h>  #include <fcntl.h>
10    #include <sys/ioctl.h>
11    #include <linux/lp.h>
12    #include <errno.h>
13    
14    extern int errno;
15    
16  extern RDPDR_DEVICE g_rdpdr_device[];  extern RDPDR_DEVICE g_rdpdr_device[];
17    
# Line 55  parallel_enum_devices(uint32 * id, char Line 60  parallel_enum_devices(uint32 * id, char
60                  // set device type                  // set device type
61                  g_rdpdr_device[*id].device_type = DEVICE_TYPE_PARALLEL;                  g_rdpdr_device[*id].device_type = DEVICE_TYPE_PARALLEL;
62                  g_rdpdr_device[*id].pdevice_data = (void *) ppar_info;                  g_rdpdr_device[*id].pdevice_data = (void *) ppar_info;
63                    g_rdpdr_device[*id].handle = 0;
64                  count++;                  count++;
65                  (*id)++;                  (*id)++;
66    
# Line 76  parallel_create(uint32 device_id, uint32 Line 82  parallel_create(uint32 device_id, uint32
82                  return STATUS_ACCESS_DENIED;                  return STATUS_ACCESS_DENIED;
83          }          }
84    
85            /* all read and writes should be non blocking */
86            if (fcntl(parallel_fd, F_SETFL, O_NONBLOCK) == -1)
87                    perror("fcntl");
88    
89            ioctl(parallel_fd, LPABORT, (int) 1);
90    
91          g_rdpdr_device[device_id].handle = parallel_fd;          g_rdpdr_device[device_id].handle = parallel_fd;
92    
93          *handle = parallel_fd;          *handle = parallel_fd;
94    
         /* all read and writes should be non blocking */  
         if (fcntl(*handle, F_SETFL, O_NONBLOCK) == -1)  
                 perror("fcntl");  
   
95          return STATUS_SUCCESS;          return STATUS_SUCCESS;
96  }  }
97    
98  static NTSTATUS  static NTSTATUS
99  parallel_close(HANDLE handle)  parallel_close(HANDLE handle)
100  {  {
101          g_rdpdr_device[get_device_index(handle)].handle = 0;          int i = get_device_index(handle);
102            if (i >= 0)
103                    g_rdpdr_device[i].handle = 0;
104          close(handle);          close(handle);
105          return STATUS_SUCCESS;          return STATUS_SUCCESS;
106  }  }
# Line 105  parallel_read(HANDLE handle, uint8 * dat Line 115  parallel_read(HANDLE handle, uint8 * dat
115  static NTSTATUS  static NTSTATUS
116  parallel_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)  parallel_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
117  {  {
118          *result = write(handle, data, length);          int rc = STATUS_SUCCESS;
119          return STATUS_SUCCESS;  
120            int n = write(handle, data, length);
121            if (n < 0)
122            {
123                    int status;
124    
125                    *result = 0;
126                    switch (errno)
127                    {
128                            case EAGAIN:
129                                    rc = STATUS_DEVICE_OFF_LINE;
130                            case ENOSPC:
131                                    rc = STATUS_DEVICE_PAPER_EMPTY;
132                            case EIO:
133                                    rc = STATUS_DEVICE_OFF_LINE;
134                            default:
135                                    rc = STATUS_DEVICE_POWERED_OFF;
136                    }
137                    if (ioctl(handle, LPGETSTATUS, &status) == 0)
138                    {
139                            /* coming soon: take care for the printer status */
140                            printf("parallel_write: status = %d, errno = %d\n", status, errno);
141                    }
142            }
143            *result = n;
144            return rc;
145  }  }
146    
147  static NTSTATUS  static NTSTATUS
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