diff options
Diffstat (limited to 'include/bootflow.h')
-rw-r--r-- | include/bootflow.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/bootflow.h b/include/bootflow.h index 8db875adf61..7a8595f3dfc 100644 --- a/include/bootflow.h +++ b/include/bootflow.h @@ -484,4 +484,46 @@ int bootflow_menu_run(struct bootstd_priv *std, bool text_mode, int cmdline_set_arg(char *buf, int maxlen, const char *cmdline, const char *set_arg, const char *new_val, int *posp); +/** + * bootflow_cmdline_set_arg() - Set a single argument for a bootflow + * + * Update the allocated cmdline and set the bootargs variable + * + * @bflow: Bootflow to update + * @arg: Argument to update (e.g. "console") + * @val: Value to set (e.g. "ttyS2") or NULL to delete the argument if present, + * "" to set it to an empty value (e.g. "console=") and BOOTFLOWCL_EMPTY to add + * it without any value ("initrd") + * @set_env: true to set the "bootargs" environment variable too + * + * Return: 0 if OK, -ENOMEM if out of memory + */ +int bootflow_cmdline_set_arg(struct bootflow *bflow, const char *arg, + const char *val, bool set_env); + +/** + * cmdline_get_arg() - Read an argument from a cmdline + * + * @cmdline: Command line to read, in the form: + * + * fred mary= jane=123 john="has spaces" + * @arg: Argument to read (may or may not exist) + * @posp: Returns position of argument (after any leading quote) if present + * Return: Length of argument value excluding quotes if found, -ENOENT if not + * found + */ +int cmdline_get_arg(const char *cmdline, const char *arg, int *posp); + +/** + * bootflow_cmdline_get_arg() - Read an argument from a cmdline + * + * @bootflow: Bootflow to read from + * @arg: Argument to read (may or may not exist) + * @valp: Returns a pointer to the argument (after any leading quote) if present + * Return: Length of argument value excluding quotes if found, -ENOENT if not + * found + */ +int bootflow_cmdline_get_arg(struct bootflow *bflow, const char *arg, + const char **val); + #endif |