memcheck/tests/linux/rfcomm.c

   1 #include <stdint.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <sys/types.h>
   5 #include <sys/socket.h>
   6 #include "../../memcheck.h"
   7
   8 /* user space headers might not be there, define things ourselves. */
   9 typedef struct {
  10    uint8_t b[6];
  11 } __attribute__((packed)) vui_bdaddr_t;
  12
  13 struct vui_sockaddr_rc {
  14         sa_family_t     rc_family;
  15         vui_bdaddr_t    rc_bdaddr;
  16         uint8_t         rc_channel;
  17 };
  18
  19 #define VUI_AF_BLUETOOTH 31
  20 #define VUI_BTPROTO_RFCOMM 3
  21
  22 #define VUI_BDADDR_ANY (&(vui_bdaddr_t) {{0, 0, 0, 0, 0, 0}})
  23
  24 int
  25 main (int argc, char **argv)
  26 {
  27   int nSocket;
  28
  29   nSocket = socket(VUI_AF_BLUETOOTH, SOCK_STREAM, VUI_BTPROTO_RFCOMM);
  30
  31   if (nSocket < 0)
  32     {
  33       // Not supported, nothing to test...
  34       return 1;
  35     }
  36
  37   struct vui_sockaddr_rc aAddr;
  38
  39   // Store correct values in aAddr but marking it undefined
  40   // so as to generate errors. We need to have deterministic
  41   // undefined values to have a reproducible test.
  42   aAddr.rc_family = VUI_AF_BLUETOOTH;
  43   aAddr.rc_bdaddr = *VUI_BDADDR_ANY;
  44   aAddr.rc_channel = 5;
  45   VALGRIND_MAKE_MEM_UNDEFINED(&aAddr, sizeof(aAddr));
  46   // We re-assign below each piece one by one, so as to
  47   // have the piece marked initialised.
  48
  49
  50   // Ignore return values.
  51
  52   // Everything uninit (family, ...)
  53   bind(nSocket, (struct sockaddr *) &aAddr, sizeof(aAddr));
  54
  55   // Same but with an unknown family (we hope :)
  56   aAddr.rc_family = 12345;
  57   // (reset everything to uninit)
  58   VALGRIND_MAKE_MEM_UNDEFINED(&aAddr, sizeof(aAddr));
  59   bind(nSocket, (struct sockaddr *) &aAddr, sizeof(aAddr));
  60
  61   aAddr.rc_family = VUI_AF_BLUETOOTH;
  62   // uninit bdaddr and channel.
  63   bind(nSocket, (struct sockaddr *) &aAddr, sizeof(aAddr));
  64
  65   aAddr.rc_bdaddr = *VUI_BDADDR_ANY;
  66   // uninit channel.
  67   bind(nSocket, (struct sockaddr *) &aAddr, sizeof(aAddr));
  68
  69   aAddr.rc_channel = 5;
  70   // Everything correctly init.
  71   bind(nSocket, (struct sockaddr *) &aAddr, sizeof(aAddr));
  72
  73   return 0;
  74 }