Init

2 files changed, 119 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..217284f
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+make:
+	gcc nmount.c -o nmount
\ No newline at end of file
diff --git a/nmount.c b/nmount.c
new file mode 100644
index 0000000..a51664b
--- /dev/null
+++ b/nmount.c
@@ -0,0 +1,117 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <signal.h>
+
+/////////////////////////////////////////////////////////////////////////////////////////
+/*FLAGS FROM KERNEL*/
+
+//#define MS_RDONLY	 1	/* Mount read-only */
+//#define MS_NOSUID	 2	/* Ignore suid and sgid bits */
+//#define MS_NODEV	 4	/* Disallow access to device special files */
+//#define MS_NOEXEC	 8	/* Disallow program execution */
+//#define MS_SYNCHRONOUS	16	/* Writes are synced at once */
+//#define MS_REMOUNT	32	/* Alter flags of a mounted FS */
+//#define MS_MANDLOCK	64	/* Allow mandatory locks on an FS */
+//#define MS_DIRSYNC	128	/* Directory modifications are synchronous */
+//#define MS_NOATIME	1024	/* Do not update access times. */
+//#define MS_NODIRATIME	2048	/* Do not update directory access times */
+//#define MS_BIND		4096
+//#define MS_MOVE		8192
+//#define MS_REC		16384
+//#define MS_VERBOSE	32768	/* War is peace. Verbosity is silence.
+//				   MS_VERBOSE is deprecated. */
+//#define MS_SILENT	32768
+//#define MS_POSIXACL	(1<<16)	/* VFS does not apply the umask */
+//#define MS_UNBINDABLE	(1<<17)	/* change to unbindable */
+//#define MS_PRIVATE	(1<<18)	/* change to private */
+//#define MS_SLAVE	(1<<19)	/* change to slave */
+//#define MS_SHARED	(1<<20)	/* change to shared */
+//#define MS_RELATIME	(1<<21)	/* Update atime relative to mtime/ctime. */
+//#define MS_KERNMOUNT	(1<<22) /* this is a kern_mount call */
+//#define MS_I_VERSION	(1<<23) /* Update inode I_version field */
+//#define MS_STRICTATIME	(1<<24) /* Always perform atime updates */
+//#define MS_LAZYTIME	(1<<25) /* Update the on-disk [acm]times lazily */
+
+
+typedef struct {
+    int f_output; //show statistics of pipe
+    int f_stopzero; //stop if 0 bytes in input
+    int f_nowriteout; // dont write to output
+    int f_graphmode; //show graph
+} mount_params;
+
+static mount_params g_params;
+
+void helper(char *progname)
+{
+    printf("Usage: %s [OPTS]\n\n"
+        "Version: 0.0.1 \n"
+        "\n"
+        , progname);
+}
+
+void sig_handler(int signo)
+{
+    switch(signo)
+    {
+        case SIGINT:
+            //printf("Catch SIGINT Exit\n");
+            //if (g_params.f_output)
+            //{
+            //    printf("Data in %d bytes Data out %d bytes",g_stats.cnt_in,g_stats.cnt_out);
+            //}
+        default:
+            printf("Unknown signal %d\n",signo);
+    }
+    exit(0);
+}
+
+int smount(const char *source, const char *target,
+                 const char *filesystemtype, unsigned long mountflags,
+                 const void *data);
+
+int main(int argc, char **argv)
+{
+    int c;
+
+    printf("One big real mount\n");
+
+    if (signal(SIGINT,sig_handler) == SIG_ERR)
+    {
+        printf("cannot register signal handler\n");
+        exit(1);
+    }
+    
+    //process arguments
+    while ((c = getopt(argc, argv, "osng")) != -1)
+    {
+        switch (c)
+        {
+            case 'v':
+                //g_params.f_output = 1;
+                break;
+            
+            default:
+                helper(argv[0]);
+                exit(1);
+        }
+    }
+
+    return 0;
+}
+
+int smount(
+    const char *source, 
+    const char *target,
+    const char *filesystemtype,
+    unsigned long mountflags,
+    const void *data)
+{
+
+    return 0;
+}