AcessNative/libacess-native.so_src/main.c

   1 /*
   2  */
   3 #include <stdarg.h>
   4 #include <stdlib.h>
   5 #include <stdio.h>
   6 #include <string.h>
   7
   8 extern int      giSyscall_ClientID;
   9 extern void     Request_Preinit(void);
  10 extern int      acess__SysOpen(const char *Path, unsigned int flags);
  11
  12 #ifdef __WINDOWS__
  13 int DllMain(void)
  14 {
  15         fprintf(stderr, "TODO: Windows libacessnative setup\n");
  16         return 0;
  17 }
  18
  19 #endif
  20
  21 #ifdef __linux__
  22 int __attribute__ ((constructor)) libacessnative_init(void);
  23
  24 int libacessnative_init(void)
  25 {
  26         Request_Preinit();
  27
  28         const char *preopens = getenv("AN_PREOPEN");
  29         if( preopens )
  30         {
  31                 while( *preopens )
  32                 {
  33                         const char *splitter = strchr(preopens, ':');
  34                         size_t  len;
  35                         if( !splitter ) {
  36                                 len = strlen(preopens);
  37                         }
  38                         else {
  39                                 len = splitter - preopens;
  40                         }
  41                         char path[len+1];
  42                         memcpy(path, preopens, len);
  43                         path[len] = 0;
  44                         int fd = acess__SysOpen(path, 6);       // WRITE,READ,no EXEC
  45                         if( fd == -1 ) {
  46                                 fprintf(stderr, "Unable to preopen '%s'\n", path);
  47                         }
  48
  49                         if( !splitter )
  50                                 break;
  51                         preopens = splitter + 1;
  52                 }
  53         }
  54
  55 //      if( !getenv("ACESSNATIVE_ID")
  56
  57         return 0;
  58 }
  59 #endif
  60
  61
  62 void Debug(const char *format, ...)
  63 {
  64         va_list args;
  65         printf("Debug: ");
  66         va_start(args, format);
  67         vfprintf(stdout, format, args);
  68         va_end(args);
  69         printf("\n");
  70 }
  71
  72 void Warning(const char *format, ...)
  73 {
  74         va_list args;
  75         printf("Warning: ");
  76         va_start(args, format);
  77         vfprintf(stdout, format, args);
  78         va_end(args);
  79         printf("\n");
  80 }
  81
  82 void __libc_csu_fini()
  83 {
  84 }
  85
  86 void __libc_csu_init()
  87 {
  88 }
  89