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

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