apps/init/exe.c

   1 /*
   2     meinOS - A unix-like x86 microkernel operating system
   3     Copyright (C) 2008  Janosch Gräf <janosch.graef@gmx.net>
   4
   5     This program is free software: you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation, either version 3 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #include <sys/types.h>
  20 #include <stdlib.h>
  21
  22 #include "init.h"
  23 #include "exe_elf.h"
  24
  25 exe_t *exe_create(const char *file) {
  26   exe_t *exe = malloc(sizeof(exe_t*));
  27
  28   // try ELF
  29   exe->data = elf_create(file);
  30   if (exe->data!=NULL) {
  31     exe->type = EXE_ELF;
  32     return exe;
  33   }
  34   else elf_destroy((elf_t*)exe->data);
  35
  36   // not an executable
  37   free(exe);
  38   return NULL;
  39 }
  40
  41 void *exe_load(exe_t *exe,pid_t pid) {
  42   if (exe->type==EXE_ELF) return elf_load((elf_t*)exe->data,pid);
  43   else return NULL;
  44 }
  45
  46 void exe_destroy(exe_t *exe) {
  47   if (exe->type==EXE_ELF) elf_destroy((elf_t*)exe->data);
  48   free(exe);
  49 }