Egor00f 9527a0f3d1 libshell & shell: implement a return value for the shell API (#660) ...

Require: #657 ([compare](https://git.kolibrios.org/Egor00f/kolibrios/compare/update-shell-api...shell-api-implement-return-value))

Implement a return value for shell API functions.
required for updating libc streams.

The return value is declared after `data` for consistency with older programs.

# Changes:
## [`shell`](https://git.kolibrios.org/KolibriOS/kolibrios/pulls/660/files#diff-9e9982c0c3e401531fcfbc1f9dd5f1f3d85452fd)
+ `SHELL_PUTS` and `SHELL_GETS` return the number of bytes written
+ `SHELL_GETC` write full `int` value
## `libshell`
+ [`shell_gets`](https://git.kolibrios.org/KolibriOS/kolibrios/pulls/660/files#diff-8840a9f9a5e28f05f5f46e1b5106caf3ce6c470e) returns `NULL` or `EOF`, or a pointer to a string and returns the number of bytes received
+ [`shell_getc`](https://git.kolibrios.org/KolibriOS/kolibrios/pulls/660/files#diff-955a257b2a02cfc5ee9879b7efc50d0644ad179c) return `int`
+ [`shell_printf`](https://git.kolibrios.org/KolibriOS/kolibrios/pulls/660/files#diff-4ffb653a63ef098530e336370053615fee66be03) returns the number of bytes written
+ [`shell_puts`](https://git.kolibrios.org/KolibriOS/kolibrios/pulls/660/files#diff-ee4df9617f16bc52153701c0edc6c2947dd877a8) returns the number of bytes written
+ [`shell_write_string`](https://git.kolibrios.org/KolibriOS/kolibrios/pulls/660/files#diff-cebe23f17158adc73d20c5f9096862c209732598) returns the number of bytes written

Reviewed-on: https://git.kolibrios.org/KolibriOS/kolibrios/pulls/660
Reviewed-by: Kiril Lipatov <lipatov.kiril@gmail.com>

2026-09-22 10:01:06 +00:00

..

amd_temp_view

kernel/docs, programs: rename SF 51 and SF 77 constants (fix #321) (#640)

2026-08-09 19:08:15 +00:00

apm

APM: slightly update UI and add it to IMG

2019-05-10 12:51:47 +00:00

battery

…

beep

Most of language code fixes

2024-06-03 00:34:02 +01:00

board

board: toggle kernel/user log with Tab (#682)

2026-09-07 11:20:29 +00:00

calendar

programs/system: Post-SVN tidy (part 1) (#408)

2026-04-09 08:40:14 +00:00

cd_tray

All: Update locale codes (Part 2) (#76)

2024-06-14 10:35:46 +02:00

colrdial

optimize import: (#689)

2026-09-13 20:31:16 +00:00

cpu

libraries/box_lib: Post-SVN tidy (#433)

2026-04-23 11:50:10 +00:00

cropflat

Consistent use of KolibriOS name

2024-05-22 10:10:18 +00:00

dbgboard

Apps/dbgboard: fix critical bug with stack overflow

2025-03-16 19:50:12 +01:00

deskcfg

add sntp to IMG

2019-04-25 17:51:39 +00:00

docky

kernel/docs, programs: rename SF 51 and SF 77 constants (fix #321) (#640)

2026-08-09 19:08:15 +00:00

docpack

programs/system: Post-SVN tidy (part 1) (#408)

2026-04-09 08:40:14 +00:00

end

programs/system: Post-SVN tidy (part 3) (#413)

2026-04-10 16:30:22 +00:00

eskin

programs/system: Post-SVN tidy (part 3) (#413)

2026-04-10 16:30:22 +00:00

format

libraries/box_lib: Post-SVN tidy (#433)

2026-04-23 11:50:10 +00:00

gmon

refactor/links: update obsolote WebSVN links (fix #66, #67, ref #77) (#163)

2026-06-02 08:58:36 +00:00

hdd_info

optimize import: (#689)

2026-09-13 20:31:16 +00:00

icon

programs/system: Post-SVN tidy (part 2) (#410)

2026-04-09 18:57:52 +00:00

icon_new

libraries/box_lib: Post-SVN tidy (#433)

2026-04-23 11:50:10 +00:00

keybi

libraries/box_lib: Post-SVN tidy (#433)

2026-04-23 11:50:10 +00:00

kobra

develop/libraries: Post-SVN tidy (#436)

2026-04-25 09:20:05 +00:00

launch

programs/system: Post-SVN tidy (part 2) (#410)

2026-04-09 18:57:52 +00:00

launcher

programs/system: Post-SVN tidy (part 2) (#410)

2026-04-09 18:57:52 +00:00

loaddrv

loaddrv: Updated error message on invalid args passed (#364)

2026-03-14 16:49:33 +00:00

magnify

Magnify: Moved to programs/system

2025-05-14 21:58:44 +03:00

menu

programs/system: Post-SVN tidy (part 2) (#410)

2026-04-09 18:57:52 +00:00

mousemul

programs/system: Post-SVN tidy (part 2) (#410)

2026-04-09 18:57:52 +00:00

MyKey

libraries/box_lib: Post-SVN tidy (#433)

2026-04-23 11:50:10 +00:00

notify3

Optimize png files for programs/system resources

2024-05-13 11:51:04 +00:00

open

open: finally fix file association (#594)

2026-07-30 02:34:26 +00:00

os

Replace some hardcoded /rd/1 paths with /sys.

2020-10-02 12:33:16 +00:00

psxpad

Optimize png files for programs/system resources

2024-05-13 11:51:04 +00:00

rdsave

libraries/box_lib: Post-SVN tidy (#433)

2026-04-23 11:50:10 +00:00

refrscrn

Most of language code fixes

2024-06-03 00:34:02 +01:00

reshare

apps/reshare: change bpp convention to match KIV (#470)

2026-06-06 06:49:28 +00:00

run

libraries/box_lib: Post-SVN tidy (#433)

2026-04-23 11:50:10 +00:00

RunOD

libraries/box_lib: Post-SVN tidy (#433)

2026-04-23 11:50:10 +00:00

scrsaver

@ss: if no program set then exit

2021-12-27 15:48:22 +00:00

searchap

Fix EN typos

2024-05-29 11:30:32 +00:00

setup

programs/system: Post-SVN tidy (part 3) (#413)

2026-04-10 16:30:22 +00:00

shell

libshell & shell: implement a return value for the shell API (#660)

2026-09-22 10:01:06 +00:00

skincfg

optimize import: (#689)

2026-09-13 20:31:16 +00:00

taskbar

programs/system: Post-SVN tidy (part 3) (#413)

2026-04-10 16:30:22 +00:00

terminal

programs/system/terminal: switch to the serial driver (#638)

2026-09-07 10:37:40 +00:00

tinfo

Apps/genfiles: Rewrite from nasm to fasm

2025-03-07 01:10:44 +01:00

virtdisk

Added new driver for mount raw disk images.

2023-10-01 08:47:52 +00:00

zkey

programs/system: Post-SVN tidy (part 3) (#413)

2026-04-10 16:30:22 +00:00