e2fsprogs: the max length of debugfs argument is too short

The max length of debugfs argument is 256 which is too short, the
arguments are two paths, the PATH_MAX is 4096 according to
/usr/include/linux/limits.h, so use BUFSIZ (which is 8192 on Linux
systems), that's also what the ss library uses.

This patch has been reviewed by the linux-ext4 mailing list, but isn't
merged atm.

[YOCTO #3848]

(From OE-Core rev: a916a127768291ca7c614976e05c90153fec2956)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 42 insertions, 0 deletions

diff --git a/meta/recipes-devtools/e2fsprogs/e2fsprogs-1.42.8/debugfs-too-short.patch b/meta/recipes-devtools/e2fsprogs/e2fsprogs-1.42.8/debugfs-too-short.patch
new file mode 100644
index 0000000000..607305be54
--- /dev/null
+++ b/meta/recipes-devtools/e2fsprogs/e2fsprogs-1.42.8/debugfs-too-short.patch
@@ -0,0 +1,41 @@
+debugfs.c: the max length of debugfs argument is too short
+
+The max length of debugfs argument is 256 which is too short, the
+arguments are two paths, the PATH_MAX is 4096 according to
+/usr/include/linux/limits.h, so use BUFSIZ (which is 8192 on Linux
+systems), that's also what the ss library uses.
+
+Upstream-Status: Submitted
+
+Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
+Acked-by: Darren Hart <dvhart@linux.intel.com>
+---
+ debugfs/debugfs.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/debugfs/debugfs.c b/debugfs/debugfs.c
+--- a/debugfs/debugfs.c
++++ b/debugfs/debugfs.c
+@@ -37,6 +37,10 @@ extern char *optarg;
+ #include "../version.h"
+ #include "jfs_user.h"
+ 
++#ifndef BUFSIZ
++#define BUFSIZ 8192
++#endif
++
+ ss_request_table *extra_cmds;
+ const char *debug_prog_name;
+ int sci_idx;
+@@ -2311,7 +2315,7 @@ void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
+ static int source_file(const char *cmd_file, int ss_idx)
+ {
+        FILE            *f;
+-       char            buf[256];
++       char            buf[BUFSIZ];
+        char            *cp;
+        int             exit_status = 0;
+        int             retval;
+-- 
+1.8.1.2
+
diff --git a/meta/recipes-devtools/e2fsprogs/e2fsprogs_1.42.8.bb b/meta/recipes-devtools/e2fsprogs/e2fsprogs_1.42.8.bb
index 928a0cd688..319728ee57 100644
--- a/meta/recipes-devtools/e2fsprogs/e2fsprogs_1.42.8.bb
+++ b/meta/recipes-devtools/e2fsprogs/e2fsprogs_1.42.8.bb
@@ -3,6 +3,7 @@ require e2fsprogs.inc
 
 SRC_URI += "file://acinclude.m4 \
             file://remove.ldconfig.call.patch \
+            file://debugfs-too-short.patch \
 "
 
 SRC_URI[md5sum] = "8ef664b6eb698aa6b733df59b17b9ed4"