arch/um/kernel/initrd_user.c

   1 /*
   2  * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #include <unistd.h>
   7 #include <sys/types.h>
   8 #include <sys/stat.h>
   9 #include <errno.h>
  10
  11 #include "user_util.h"
  12 #include "kern_util.h"
  13 #include "user.h"
  14 #include "initrd.h"
  15 #include "os.h"
  16
  17 int load_initrd(char *filename, void *buf, int size)
  18 {
  19         int fd, n;
  20
  21         fd = os_open_file(filename, of_read(OPENFLAGS()), 0);
  22         if(fd < 0){
  23                 printk("Opening '%s' failed - err = %d\n", filename, -fd);
  24                 return(-1);
  25         }
  26         n = os_read_file(fd, buf, size);
  27         if(n != size){
  28                 printk("Read of %d bytes from '%s' failed, err = %d\n", size,
  29                        filename, -n);
  30                 return(-1);
  31         }
  32
  33         os_close_file(fd);
  34         return(0);
  35 }
  36
  37 /*
  38  * Overrides for Emacs so that we follow Linus's tabbing style.
  39  * Emacs will notice this stuff at the end of the file and automatically
  40  * adjust the settings for this buffer only.  This must remain at the end
  41  * of the file.
  42  * ---------------------------------------------------------------------------
  43  * Local variables:
  44  * c-file-style: "linux"
  45  * End:
  46  */