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| -rw-r--r-- | trans/devport.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/trans/devport.c b/trans/devport.c deleted file mode 100644 index a6dfe7f8..00000000 --- a/trans/devport.c +++ /dev/null @@ -1,185 +0,0 @@ -/* A really stupid translator allowing a user to get a device port - - Copyright (C) 1996 Free Software Foundation, Inc. - - Written by Miles Bader <miles@gnu.ai.mit.edu> - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2, or (at - your option) any later version. - - This program is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <stdio.h> -#include <unistd.h> -#include <error.h> -#include <string.h> - -#include <hurd.h> -#include <hurd/ports.h> -#include <hurd/trivfs.h> -#include <hurd/fsys.h> - -#include <device/device.h> - -static mach_port_t device_master = MACH_PORT_NULL; -static char *device_name = 0; - -struct port_class *trivfs_protid_portclasses[1]; -struct port_class *trivfs_cntl_portclasses[1]; -int trivfs_protid_nportclasses = 1; -int trivfs_cntl_nportclasses = 1; - -void -main (int argc, char **argv) -{ - error_t err; - mach_port_t bootstrap; - struct port_class *control_class; - struct port_class *node_class; - struct port_bucket *port_bucket; - - control_class = ports_create_class (trivfs_clean_cntl, 0); - node_class = ports_create_class (trivfs_clean_protid, 0); - port_bucket = ports_create_bucket (); - trivfs_protid_portclasses[0] = node_class; - trivfs_cntl_portclasses[0] = control_class; - - if (argc != 2) - { - fprintf (stderr, "Usage: %s DEVICE-NAME", program_invocation_name); - exit(1); - } - - device_name = argv[1]; - - task_get_bootstrap_port (mach_task_self (), &bootstrap); - if (bootstrap == MACH_PORT_NULL) - error (1, 0, "must be started as a translator"); - - err = get_privileged_ports (0, &device_master); - if (err) - error (2, err, "Can't get device master port"); - - /* Reply to our parent */ - err = trivfs_startup (bootstrap, 0, control_class, port_bucket, - node_class, port_bucket, NULL); - if (err) - error (3, err, "Contacting parent"); - - /* Launch. */ - ports_manage_port_operations_one_thread (port_bucket, trivfs_demuxer, 0); - - exit(0); -} - -/* Trivfs hooks */ - -int trivfs_fstype = FSTYPE_DEV; -int trivfs_fsid = 0; - -int trivfs_support_read = 0; -int trivfs_support_write = 0; -int trivfs_support_exec = 0; - -int trivfs_allow_open = 0; - -void -trivfs_modify_stat (struct trivfs_protid *cred, struct stat *st) -{ - st->st_size = 0; - st->st_blocks = 0; - st->st_mode &= ~S_IFMT; - st->st_mode |= S_IFCHR; -} - -error_t -trivfs_goaway (struct trivfs_control *fsys, int flags) -{ - exit (0); -} - -error_t -trivfs_S_file_get_storage_info (struct trivfs_protid *cred, - mach_port_t reply, - mach_msg_type_name_t reply_type, - mach_port_t **ports, - mach_msg_type_name_t *ports_type, - mach_msg_type_number_t *num_ports, - int **ints, mach_msg_type_number_t *num_ints, - off_t **offsets, - mach_msg_type_number_t *num_offsets, - char **data, mach_msg_type_number_t *data_len) -{ - error_t err = 0; - - if (!cred) - err = EOPNOTSUPP; - else - { - /* True when we've allocated memory for the corresponding vector. */ - int al_ports = 0, al_ints = 0, al_offsets = 0, al_data = 0; - size_t name_len = strlen (device_name) + 1; - -#define ENSURE_MEM(v, vl, alp, num) \ - if (!err && *vl < num) \ - { \ - err = vm_allocate (mach_task_self (), \ - (vm_address_t *)v, num * sizeof (**v), 1); \ - if (! err) \ - { \ - *vl = num; \ - alp = 1; \ - } \ - } - - ENSURE_MEM (ports, num_ports, al_ports, 1); - ENSURE_MEM (ints, num_ints, al_ints, 6); - ENSURE_MEM (offsets, num_offsets, al_offsets, 0); - ENSURE_MEM (data, data_len, al_data, name_len); - - if (! err) - err = device_open (device_master, 0, device_name, *ports); - - if (! err) - { - (*ints)[0] = STORAGE_DEVICE; /* type */ - (*ints)[1] = 0; /* flags */ - (*ints)[2] = 0; /* block_size */ - (*ints)[3] = 0; /* num_runs */ - (*ints)[4] = name_len; /* name_len */ - (*ints)[5] = 0; /* misc_len */ - *num_ints = 6; - - strcpy (*data, device_name); - *data_len = name_len; - - *num_ports = 1; - *ports_type = MACH_MSG_TYPE_MOVE_SEND; - - *num_offsets = 0; - } - else - /* Some memory allocation failed (not bloody likely). */ - { -#define DISCARD_MEM(v, vl, alp) \ - if (alp) \ - vm_deallocate (mach_task_self (), (vm_address_t)*v, *vl * sizeof (**v)); - - DISCARD_MEM (ports, num_ports, al_ports); - DISCARD_MEM (ints, num_ints, al_ints); - DISCARD_MEM (offsets, num_offsets, al_offsets); - DISCARD_MEM (data, data_len, al_data); - } - } - - return err; -} |