minix/lib/libsys/socketpath.c

   1 #include "syslib.h"
   2
   3 #include <unistd.h>
   4 #include <string.h>
   5 #include <minix/safecopies.h>
   6
   7 int
   8 socketpath(endpoint_t endpt, const char * path, size_t size, int what,
   9         dev_t * dev, ino_t * ino)
  10 {
  11         cp_grant_id_t grant;
  12         message m;
  13         int r;
  14
  15         if ((grant = cpf_grant_direct(VFS_PROC_NR, (vir_bytes)path, size,
  16             CPF_READ)) == GRANT_INVALID)
  17                 return ENOMEM;
  18
  19         memset(&m, 0, sizeof(m));
  20         m.m_lsys_vfs_socketpath.endpt = endpt;
  21         m.m_lsys_vfs_socketpath.grant = grant;
  22         m.m_lsys_vfs_socketpath.count = size;
  23         m.m_lsys_vfs_socketpath.what = what;
  24
  25         r = _taskcall(VFS_PROC_NR, VFS_SOCKETPATH, &m);
  26
  27         cpf_revoke(grant);
  28
  29         if (r == OK) {
  30                 *dev = m.m_vfs_lsys_socketpath.device;
  31                 *ino = m.m_vfs_lsys_socketpath.inode;
  32         }
  33
  34         return r;
  35 }