fs/proc/version.c

   1 #include <linux/fs.h>
   2 #include <linux/init.h>
   3 #include <linux/kernel.h>
   4 #include <linux/proc_fs.h>
   5 #include <linux/seq_file.h>
   6 #include <linux/utsname.h>
   7
   8 static int version_proc_show(struct seq_file *m, void *v)
   9 {
  10         seq_printf(m, linux_proc_banner,
  11                 utsname()->sysname,
  12                 utsname()->release,
  13                 utsname()->version);
  14         return 0;
  15 }
  16
  17 static int version_proc_open(struct inode *inode, struct file *file)
  18 {
  19         return single_open(file, version_proc_show, NULL);
  20 }
  21
  22 static const struct file_operations version_proc_fops = {
  23         .open           = version_proc_open,
  24         .read           = seq_read,
  25         .llseek         = seq_lseek,
  26         .release        = single_release,
  27 };
  28
  29 static int __init proc_version_init(void)
  30 {
  31         proc_create("version", 0, NULL, &version_proc_fops);
  32         return 0;
  33 }
  34 fs_initcall(proc_version_init);