[PATCH] mount: provide a bigger hint about missing helper programs. Closes: #452330

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From: Timo Sirainen <tss@xxxxxx>

Report missing helper program if mount device doesn't exist, which most
likely means a non-local filesystem mount which might need a helper program.

See: http://bugs.debian.org/452330

Signed-off-by: LaMont Jones <lamont@xxxxxxxxxx>
---
 mount/mount.c |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/mount/mount.c b/mount/mount.c
index 99ad970..b870eb6 100644
--- a/mount/mount.c
+++ b/mount/mount.c
@@ -1227,7 +1227,15 @@ try_mount_one (const char *spec0, const char *node0, const char *types0,
 	       "       missing codepage or helper program, or other error"),
 	       spec);
 
-	if (stat(spec, &statbuf) == 0 && S_ISBLK(statbuf.st_mode)
+ 	if (stat(spec, &statbuf) < 0) {
+ 	  if (errno == ENOENT) {
+ 	    char mountprog[120];
+ 	    snprintf(mountprog, sizeof(mountprog), "/sbin/mount.%s", types);
+ 	    if (stat(mountprog, &statbuf) < 0)
+ 	      error(_("       You might need a helper program: %s"), mountprog);
+ 	  }
+ 	} else if (S_ISBLK(statbuf.st_mode)
+ 		   && (fd = open(spec, O_RDONLY | O_NONBLOCK)) >= 0) {
 	                 && (fd = open(spec, O_RDONLY | O_NONBLOCK)) >= 0) {
 
 	  if (blkdev_get_size(fd, &size) == 0) {
-- 
1.5.3.6

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