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-rw-r--r--fs/proc/kmsg.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
new file mode 100644
index 000000000..812ee3dd5
--- /dev/null
+++ b/fs/proc/kmsg.c
@@ -0,0 +1,76 @@
+/*
+ * linux/fs/proc/kmsg.c
+ *
+ * Copyright (C) 1992 by Linus Torvalds
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+
+#include <asm/segment.h>
+#include <asm/io.h>
+
+extern unsigned long log_size;
+extern struct wait_queue * log_wait;
+
+asmlinkage int sys_syslog(int type, char * bug, int count);
+
+static int kmsg_open(struct inode * inode, struct file * file)
+{
+ return sys_syslog(1,NULL,0);
+}
+
+static void kmsg_release(struct inode * inode, struct file * file)
+{
+ (void) sys_syslog(0,NULL,0);
+}
+
+static int kmsg_read(struct inode * inode, struct file * file,char * buf, int count)
+{
+ return sys_syslog(2,buf,count);
+}
+
+static int kmsg_select(struct inode *inode, struct file *file, int sel_type, select_table * wait)
+{
+ if (sel_type != SEL_IN)
+ return 0;
+ if (log_size)
+ return 1;
+ select_wait(&log_wait, wait);
+ return 0;
+}
+
+
+static struct file_operations proc_kmsg_operations = {
+ NULL, /* kmsg_lseek */
+ kmsg_read,
+ NULL, /* kmsg_write */
+ NULL, /* kmsg_readdir */
+ kmsg_select, /* kmsg_select */
+ NULL, /* kmsg_ioctl */
+ NULL, /* mmap */
+ kmsg_open,
+ kmsg_release,
+ NULL /* can't fsync */
+};
+
+struct inode_operations proc_kmsg_inode_operations = {
+ &proc_kmsg_operations, /* default base directory file-ops */
+ NULL, /* create */
+ NULL, /* lookup */
+ NULL, /* link */
+ NULL, /* unlink */
+ NULL, /* symlink */
+ NULL, /* mkdir */
+ NULL, /* rmdir */
+ NULL, /* mknod */
+ NULL, /* rename */
+ NULL, /* readlink */
+ NULL, /* follow_link */
+ NULL, /* bmap */
+ NULL, /* truncate */
+ NULL /* permission */
+};