import libsysio for b_newsysio

[fs/lustre-release.git] / libsysio / src / init.c

diff --git a/libsysio/src/init.c b/libsysio/src/init.c
index 38d0794..5e3e793 100644 (file)
--- a/libsysio/src/init.c
+++ b/libsysio/src/init.c
@@ -51,19 +51,17 @@
 #include <assert.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <sys/queue.h>
-#include <sys/uio.h>
-
-#include <sys/stat.h>
 #include <fcntl.h>
+#include <sys/uio.h>
+#include <sys/queue.h>
 
+#include "xtio.h"
 #include "sysio.h"
 #include "inode.h"
 #include "fs.h"
 #include "mount.h"
 #include "file.h"
 #include "dev.h"
-#include "xtio.h"
 
 #ifdef STDFD_DEV
 #include "stdfd.h"
@@ -394,7 +392,6 @@ do_creat(char *args)
                        xtvec.xtv_len = iovec.iov_len;
                        IOCTX_INIT(&io_context,
                                   1,
-                                  (ioid_t )&io_context,
                                   1,
                                   ino,
                                   &iovec, 1,
@@ -549,6 +546,69 @@ do_chmd(char *args)
        return err;
 }
 
+static int
+do_open(char *args)
+{
+       size_t  len;
+       struct named_argument v[] = {
+               { "nm", NULL },                 /* path */
+               { "fd",         NULL },                 /* fildes */
+               { "m",          NULL },                 /* mode */
+               { NULL,         NULL }
+       };
+       char    *cp;
+       int     fd;
+       mode_t  m;
+       struct pnode *dir, *pno;
+       struct intent intent;
+       int     err;
+       struct file *fil;
+
+       len = strlen(args);
+       if (get_args(args, v) - args != (ssize_t )len ||
+           !(v[0].value && v[1].value && v[2].value))
+               return -EINVAL;
+       fd = strtol(v[1].value, (char **)&cp, 0);
+       if (*cp ||
+           (((fd == LONG_MIN || fd == LONG_MAX) && errno == ERANGE)) ||
+            fd < 0)
+               return -EINVAL;
+       m = strtoul(v[1].value, (char **)&cp, 0);
+       if (*cp ||
+           (m == LONG_MAX && errno == ERANGE))
+               return -EINVAL;
+       m &= O_RDONLY|O_WRONLY|O_RDWR;
+
+       if (!(dir = _sysio_cwd) && !(dir = _sysio_root))
+               return -ENOENT;
+       INTENT_INIT(&intent, INT_OPEN, &m, NULL);
+       pno = NULL;
+       err = _sysio_namei(dir, v[0].value, 0, &intent, &pno);
+       if (err)
+               return err;
+       fil = NULL;
+       do {
+               err = _sysio_open(pno, m, 0);
+               if (err)
+                       break;
+               fil = _sysio_fnew(pno->p_base->pb_ino, m);
+               if (!fil) {
+                       err = -ENOMEM;
+                       break;
+               }
+               err = _sysio_fd_set(fil, fd, 1);
+               if (err < 0)
+                       break;
+               P_RELE(pno);
+               return 0;
+       } while (0);
+       if (fil)
+               F_RELE(fil);
+       if (pno)
+               P_RELE(pno);
+       return err;
+}
+
 /*
  * Execute the given cmd.
  *
@@ -571,6 +631,8 @@ do_command(char *buf)
                        return do_cd(args);
                if (strcmp("chmd", cmd) == 0)
                        return do_chmd(args);
+               if (strcmp("open", cmd) == 0)
+                       return do_open(args);
        }
        return -EINVAL;
 }