[PATCH 0/8] add memdup_nul(), use it and memdup() in a few places

[Rasmus Villemoes]

There are quite a few places where we allocate X+1 bytes, initialize
the first X bytes via memcpy() and then set the last byte to 0.

The kernel has a helper for that, kmemdup_nul(). Introduce a similar
one, and start making use of it in a few places. Also the existing
memdup() helper can be put to more use.

There are lots more places one could modify. But for code shared with
host tools, one would need to do some refactoring, putting memdup()
and memdup_nul() in their own str-util.c TU which could then also be
included in the tools build.

Rasmus Villemoes (8):
  string: fix prototype of memdup()
  stdio: drop stdio_clone
  lib/string.c: drop pointless __HAVE_ARCH_STRDUP
  lib/string.c: introduce memdup_nul() helper
  lib/string.c: implement strdup() and strndup() in terms of
    memdup_nul()
  lib/hashtable.c: use memdup_nul() in himport_r
  common/cli.c: use memdup_nul() in run_command_list()
  drivers/core: use memdup() instead of malloc()+memcpy()

 common/cli.c           |  4 +---
 common/stdio.c         | 18 +--------------
 drivers/core/acpi.c    |  3 +--
 drivers/core/ofnode.c  |  3 +--
 drivers/core/root.c    |  3 +--
 include/linux/string.h | 18 ++++++++++++---
 include/stdio_dev.h    |  1 -
 lib/hashtable.c        |  7 +++---
 lib/string.c           | 51 +++++++++++++++---------------------------
 9 files changed, 41 insertions(+), 67 deletions(-)

-- 
2.53.0