libmixpsrv/default_ops.c

   1
   2 #include <errno.h>
   3 #include <stdio.h>
   4 #include <time.h>
   5 #include <9p-mixp/mixp.h>
   6 #include <9p-mixpsrv/types.h>
   7 #include <9p-mixpsrv/default_ops.h>
   8 #include <9p-mixpsrv/call_ops.h>
   9
  10 /* Macros */
  11 #define QID(t, i) (((long long)((t)&0xFF)<<32)|((i)&0xFFFFFFFF))
  12
  13 int mixpsrv_default_ops_open(MIXPSRV_FILE_HANDLE* f, long mode)
  14 {
  15         /* if we don't have an own open() function, this is the default */
  16         if((mode&3) == P9_OEXEC)
  17         {
  18                 printf("1\n");
  19                 return -EPERM;
  20         }
  21         if((mode&3) != P9_OREAD && !(f->perm & 0200)) {
  22                 printf("2\n");
  23                 return -EPERM;
  24         }
  25 //      if((mode&3) != P9_OWRITE && !(f->tab.perm & 0400)) {
  26 //              printf("3\n");
  27 //              return -EPERM;
  28 //      }
  29         if((mode&~(3|P9_OAPPEND|P9_OTRUNC))) {
  30                 printf("4\n");
  31                 return -EPERM;
  32         }
  33         return 0;
  34 }
  35
  36 long mixpsrv_default_ops_read(MIXPSRV_FILE_HANDLE* f, long offset, size_t size, void* buffer)
  37 {
  38     printf("mixp_defaultops_read() no data.\n");
  39     return 0;
  40 }
  41
  42 long mixpsrv_default_ops_write(MIXPSRV_FILE_HANDLE* f, long offset, size_t size, void* buffer)
  43 {
  44     fprintf(stderr,"mixpsrv_default_ops_write() offset=%ld size=%uld\n", offset, size);
  45     return -EPERM;
  46 }
  47
  48 long mixpsrv_default_ops_size(MIXPSRV_FILE_HANDLE* f)
  49 {
  50 #ifdef _DEBUG
  51     fprintf(stderr,"mixpsrv_default_ops_size(): zero .. name=\"%s\"\n", f->name);
  52 #endif
  53     return 0;
  54 }
  55
  56 int mixpsrv_default_ops_close(MIXPSRV_FILE_HANDLE* f)
  57 {
  58     fprintf(stderr,"mixpsrv_default_ops_close(): close unsupported\n");
  59     return 0;
  60 }
  61
  62 int mixpsrv_default_ops_stat(MIXPSRV_FILE_HANDLE* f, MIXP_STAT *s)
  63 {
  64     s->type        = 0;
  65     s->dev         = 0;
  66     s->qid.path    = QID(f->type, f->id);
  67     s->qid.version = 0;
  68     s->qid.type    = f->qtype;
  69     s->mode        = f->perm;
  70     s->atime       = time(NULL);
  71     s->mtime       = time(NULL);
  72     s->name        = (f->name ? f->name : "???");
  73     s->uid         = s->gid = s->muid = "INCOGNITO";
  74     s->length      = mixpsrv_call_ops_size(f);
  75
  76     return 1;
  77 }
  78
  79 MIXPSRV_FILE_OPS mixp_default_fileops = {
  80     .open      = mixpsrv_default_ops_open,
  81     .read      = mixpsrv_default_ops_read,
  82     .write     = mixpsrv_default_ops_write,
  83     .size      = mixpsrv_default_ops_size,
  84     .stat      = mixpsrv_default_ops_stat,
  85     .classname = "default"
  86 };