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| author | Simon Glass <sjg@chromium.org> | 2020-11-05 10:33:47 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-12-04 16:10:01 -0500 |
| commit | 1a62d64c7de7e7de3facf221eb8408ddfb675cb8 (patch) | |
| tree | c65c0433b09af9dc2fe711112845273d2ed3975e /include/cli.h | |
| parent | 488d89afb88af5f148c7c7cf97ac382a0537b4f7 (diff) | |
| download | u-boot-1a62d64c7de7e7de3facf221eb8408ddfb675cb8.tar.gz | |
cli: Support macro processing with a fixed-size buffer
At present cli_simple_process_macros() requires that the caller provide
an output buffer that is exactly CONFIG_SYS_CBSIZE bytes in length. This
makes sense since it is designed to be used from the command line. But we
also want to use it for bootargs substitution.
Update the function to allow the caller to specify the buffer size. Also
return an error if the buffer is exhausted. The caller can ignore that if
preferred.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/cli.h')
| -rw-r--r-- | include/cli.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/cli.h b/include/cli.h index 39b913743b..3449fa6ae7 100644 --- a/include/cli.h +++ b/include/cli.h @@ -34,8 +34,10 @@ int cli_simple_run_command(const char *cmd, int flag); * * @param input Input string possible containing $() / ${} vars * @param output Output string with $() / ${} vars expanded + * @param max_size Maximum size of @output (including terminator) + * @return 0 if OK, -ENOSPC if we ran out of space in @output */ -void cli_simple_process_macros(const char *input, char *output); +int cli_simple_process_macros(const char *input, char *output, int max_size); /** * cli_simple_run_command_list() - Execute a list of command |