setup_native/scripts/source/getuid.c

   1 #include <fcntl.h>
   2 #include <sys/types.h>
   3 #include <sys/stat.h>
   4 #include <unistd.h>
   5 #include <dlfcn.h>
   6
   7 #ifdef _cplusplus
   8 extern "C" {
   9 #endif
  10
  11 #ifdef SOLARIS
  12
  13 #include <sys/systeminfo.h>
  14 #include <strings.h>
  15
  16 int   chown  (const char *path, uid_t owner, gid_t group) {return 0;}
  17 int   lchown (const char *path, uid_t owner, gid_t group) {return 0;}
  18 int   fchown (int fildes, uid_t owner, gid_t group)       {return 0;}
  19
  20 uid_t getuid  (void) {return 0;}
  21 int stat(const char *path,  struct stat *buf);
  22 #ifdef __notdef__
  23 uid_t geteuid (void) {return 0;}
  24 gid_t getgid  (void) {return 0;}
  25 gid_t getegid (void) {return 0;}
  26 #endif
  27
  28 int   setuid  (uid_t p)  {return 0;}
  29 int   setgid  (gid_t p)  {return 0;}
  30
  31 /* This is to fool cpio and pkgmk */
  32 int fstat(int fildes, struct stat *buf)
  33 {
  34     int ret = 0;
  35     static int (*p_fstat) (int fildes, struct stat *buf) = NULL;
  36     if (p_fstat == NULL)
  37         p_fstat = (int (*)(int fildes, struct stat *buf))
  38             dlsym (RTLD_NEXT, "fstat");
  39     ret = (*p_fstat)(fildes, buf);
  40     if (buf != NULL)
  41     {
  42         buf->st_uid = 0; /* root */
  43         buf->st_gid = 2; /* bin */
  44     }
  45
  46     return ret;
  47 }
  48
  49 /* this is to fool mkdir, don't allow to remove owner execute right from directories */
  50 int chmod(const char *path, mode_t mode)
  51 {
  52     int ret = 0;
  53     static int (*p_chmod) (const char *path, mode_t mode) = NULL;
  54     if (p_chmod == NULL)
  55         p_chmod = (int (*)(const char *path, mode_t mode))
  56             dlsym (RTLD_NEXT, "chmod");
  57
  58     if ((mode & S_IXUSR) == 0)
  59     {
  60         struct stat statbuf;
  61         if (stat(path, &statbuf) == 0)
  62         {
  63             if ((statbuf.st_mode & S_IFDIR) != 0)
  64                 mode = (mode | S_IXUSR);
  65         }
  66     }
  67
  68     ret = (*p_chmod)(path, mode);
  69     return ret;
  70 }
  71
  72
  73
  74 /* This is to fool tar */
  75 int fstatat64(int fildes, const char *path, struct stat64  *buf, int flag)
  76 {
  77     int ret = 0;
  78     static int (*p_fstatat) (int fildes, const char *path, struct stat64 *buf, int flag) = NULL;
  79     if (p_fstatat == NULL)
  80         p_fstatat = (int (*)(int fildes, const char *path, struct stat64 *buf, int flag))
  81             dlsym (RTLD_NEXT, "fstatat64");
  82     ret = (*p_fstatat)(fildes, path, buf, flag);
  83     if (buf != NULL)
  84     {
  85         buf->st_uid = 0; /* root */
  86         buf->st_gid = 2; /* bin */
  87     }
  88
  89     return ret;
  90 }
  91 #elif  defined LINUX
  92
  93 uid_t getuid  (void) {return 0;}
  94 uid_t geteuid (void) {return 0;}
  95
  96 /* This is to fool tar */
  97 #ifdef X86_64
  98 int __lxstat(int n, const char *path, struct stat *buf)
  99 {
 100     int ret = 0;
 101     static int (*p_lstat) (int n, const char *path, struct stat *buf) = NULL;
 102     if (p_lstat == NULL)
 103         p_lstat = (int (*)(int n, const char *path, struct stat *buf))
 104             dlsym (RTLD_NEXT, "__lxstat");
 105     ret = (*p_lstat)(n, path, buf);
 106     if (buf != NULL)
 107     {
 108         buf->st_uid = 0; /* root */
 109         buf->st_gid = 0; /* root */
 110     }
 111     return ret;
 112 }
 113 #else
 114 int __lxstat64(int n, const char *path, struct stat64 *buf)
 115 {
 116     int ret = 0;
 117     static int (*p_lstat) (int n, const char *path, struct stat64 *buf) = NULL;
 118     if (p_lstat == NULL)
 119         p_lstat = (int (*)(int n, const char *path, struct stat64 *buf))
 120             dlsym (RTLD_NEXT, "__lxstat64");
 121     ret = (*p_lstat)(n, path, buf);
 122     if (buf != NULL)
 123     {
 124         buf->st_uid = 0;
 125         buf->st_gid = 0;
 126     }
 127     return ret;
 128 }
 129 #endif
 130 #endif
 131
 132 #ifdef _cplusplus
 133 }
 134 #endif
 135