string: Fix (v)asprintf prototypes ...

Our asprintf and vasprintf have different prototypes than the glibc
functions. This causes trouble when we want to share barebox code
with userspace code. Change the prototypes for (v)asprintf to match
the glibc prototypes. Since the current (v)asprintf are convenient
to use change the existing functions to b(v)asprintf.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

stringlist: the string argument should be const ...

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

stringlist: string_list_contains can use a const string ...

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

string_list: Add string_list_for_each_entry macro ...

To ease iterating over a string_list.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

stringlist: fix division by zero ...

len is checked instead of num so when num is zero, we get a
division by zero a few lines later

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

stringlist: implement string_list_add_asprintf ...

Useful for allocating a string list entry on the fly.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

stringlist: use seperately allocated string ...

Allocate the string in string list seperately instead of
embedding a zero length string into struct stringlist.
Besides looking cleaner this allows us to implement a
string_list_asprintf.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

stringlist-functions: add sorted insert ...

Add sorted insert in stringlist functions.
Also added function to checked if string is already
in string list.

Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

stringlist: Fix printing on smaller consoles ...

Do not add additional space between strings, we already
did this by adding 4 to the string length.

Signed-off-by: Sascha Hauer <sha@pengutronix.de>

add stringlist function. They can be used to build a list ...

of strings. For now mainly useful to print the resulting
list in columns which is used in tab completion and ls.