granicus.if.org Git - strace/blob - mknod.c

   1 #include "defs.h"
   2
   3 #include <fcntl.h>
   4
   5 #ifdef MAJOR_IN_SYSMACROS
   6 # include <sys/sysmacros.h>
   7 #endif
   8
   9 #ifdef MAJOR_IN_MKDEV
  10 # include <sys/mkdev.h>
  11 #endif
  12
  13 static int
  14 decode_mknod(struct tcb *tcp, int offset)
  15 {
  16         int mode = tcp->u_arg[offset + 1];
  17
  18         if (entering(tcp)) {
  19                 printpath(tcp, tcp->u_arg[offset]);
  20                 tprintf(", %s", sprintmode(mode));
  21                 switch (mode & S_IFMT) {
  22                 case S_IFCHR:
  23                 case S_IFBLK:
  24 #if defined(SPARC) || defined(SPARC64)
  25                         if (current_personality == 1)
  26                                 tprintf(", makedev(%lu, %lu)",
  27                                 (unsigned long) ((tcp->u_arg[offset + 2] >> 18) & 0x3fff),
  28                                 (unsigned long) (tcp->u_arg[offset + 2] & 0x3ffff));
  29                         else
  30 #endif /* SPARC || SPARC64 */
  31                                 tprintf(", makedev(%lu, %lu)",
  32                                 (unsigned long) major(tcp->u_arg[offset + 2]),
  33                                 (unsigned long) minor(tcp->u_arg[offset + 2]));
  34                         break;
  35                 default:
  36                         break;
  37                 }
  38         }
  39         return 0;
  40 }
  41
  42 int
  43 sys_mknod(struct tcb *tcp)
  44 {
  45         return decode_mknod(tcp, 0);
  46 }
  47
  48 int
  49 sys_mknodat(struct tcb *tcp)
  50 {
  51         if (entering(tcp))
  52                 print_dirfd(tcp, tcp->u_arg[0]);
  53         return decode_mknod(tcp, 1);
  54 }
  55
  56 #if defined(SPARC) || defined(SPARC64)
  57 int
  58 sys_xmknod(struct tcb *tcp)
  59 {
  60         int mode = tcp->u_arg[2];
  61
  62         if (entering(tcp)) {
  63                 tprintf("%ld, ", tcp->u_arg[0]);
  64                 printpath(tcp, tcp->u_arg[1]);
  65                 tprintf(", %s", sprintmode(mode));
  66                 switch (mode & S_IFMT) {
  67                 case S_IFCHR:
  68                 case S_IFBLK:
  69                         tprintf(", makedev(%lu, %lu)",
  70                                 (unsigned long) ((tcp->u_arg[3] >> 18) & 0x3fff),
  71                                 (unsigned long) (tcp->u_arg[3] & 0x3ffff));
  72                         break;
  73                 default:
  74                         break;
  75                 }
  76         }
  77         return 0;
  78 }
  79 #endif /* SPARC || SPARC64 */