mount.nfs: Fix background mounts

[nfs-utils.git] / utils / mount / mount.c

diff --git a/utils/mount/mount.c b/utils/mount/mount.c
index 9ac817cd42e04c565f618f3ea630ccceff04ddde..a2325196160067ef6129fe15da05543cf414558b 100644 (file)
--- a/utils/mount/mount.c
+++ b/utils/mount/mount.c
@@ -49,6 +49,9 @@ int nomtab;
 int verbose;
 int sloppy;
 
+#define FOREGROUND     (0)
+#define BACKGROUND     (1)
+
 static struct option longopts[] = {
   { "fake", 0, 0, 'f' },
   { "help", 0, 0, 'h' },
@@ -361,6 +364,31 @@ static int chk_mountpoint(char *mount_point)
        return 0;
 }
 
+static int try_mount(char *spec, char *mount_point, int flags,
+                       char *fs_type, char **extra_opts, char *mount_opts,
+                       int fake, int nomtab, int bg)
+{
+       int ret;
+
+       if (strcmp(fs_type, "nfs4") == 0)
+               ret = nfs4mount(spec, mount_point, flags,
+                               extra_opts, fake, bg);
+       else
+               ret = nfsmount(spec, mount_point, flags,
+                               extra_opts, fake, bg);
+
+       if (ret)
+               return ret;
+
+       if (!fake)
+               print_one(spec, mount_point, fs_type, mount_opts);
+
+       if (!nomtab)
+               ret = add_mtab(spec, mount_point, fs_type, flags, *extra_opts,
+                               0, 0 /* these are always zero for NFS */ );
+       return ret;
+}
+
 int main(int argc, char *argv[])
 {
        int c, flags = 0, mnt_err = 1, fake = 0;
@@ -492,22 +520,27 @@ int main(int argc, char *argv[])
                goto out;
        }
 
-       if (strcmp(fs_type, "nfs4") == 0)
-               mnt_err = nfs4mount(spec, mount_point, flags,
-                                       &extra_opts, fake, 0);
-       else
-               mnt_err = nfsmount(spec, mount_point, flags,
-                                       &extra_opts, fake, 0);
-
-       if (mnt_err)
-               exit(EX_FAIL);
-
-       if (!fake)
-               print_one(spec, mount_point, fs_type, mount_opts);
+       mnt_err = try_mount(spec, mount_point, flags, fs_type, &extra_opts,
+                               mount_opts, fake, nomtab, FOREGROUND);
+       if (mnt_err == EX_BG) {
+               printf(_("mount: backgrounding \"%s\"\n"), spec);
+               fflush(stdout);
 
-       if (!nomtab)
-               mnt_err = add_mtab(spec, mount_point, fs_type, flags, extra_opts,
-                               0, 0 /* these are always zero for NFS */ );
+               /*
+                * Parent exits immediately with success.  Make
+                * sure not to free "mount_point"
+                */
+               if (fork() > 0)
+                       exit(0);
+
+               mnt_err = try_mount(spec, mount_point, flags, fs_type,
+                                       &extra_opts, mount_opts, fake,
+                                       nomtab, BACKGROUND);
+               if (verbose && mnt_err)
+                       printf(_("%s: giving up \"%s\"\n"),
+                               progname, spec);
+               exit(0);
+       }
 
 out:
        free(mount_point);