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path: root/components/lwp/lwp_args.c
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2026-02-13chore: fix typo in components and libcputheqengineer
2025-09-14[components/lwp]add doxygen comment for lwp_args. (#10696)Guorui Li
2024-08-24fixup: uninitialized argument vector elementShell
This patch addresses the potential issue of uninitialized elements in the argument vector returned by `lwp_get_command_line_args()`. The previous implementation could leave `argv` in an inconsistent state if certain errors occurred, leading to possible undefined behavior. Changes: - Replaced `rt_malloc()` with `rt_calloc()` to ensure `argv` is properly initialized. - Added a consistent error handling path using `goto error_exit` to handle memory allocation failures and string copy errors. - Ensured `lwp_free_command_line_args()` is called before returning on error, preventing potential memory leaks. Signed-off-by: Shell <[email protected]>
2024-05-31[smart] fixup of script execution (#9009)Shell
This patch fixup the script execution capabilities on argv passing and adds support for arguments larger than 4k. According to POSIX, the script parameter is quiet different from the current implementation. Especially on the way it inserts the path of executables. At the end, when you execute a script from `$PATH`, it always fails. For the script, interpreter will be invoked with the following arguments: `{interpreter [optional-arg] pathname arg...}` where pathname is the pathname of the file specified as the first argument of execve(), and arg... is the series of words pointed to by the argv argument of execve(), starting at argv[1]. Note that there is no way to get the argv[0] that was passed to the execve() call. The changes include: - Separating argument, environment variable, and auxiliary vector processing into a new lwp_args.c file. - Fixing bugs in script argument processing and supporting arguments larger than 4k. - Updating lwp_execve to use the new argscopy function and removing the old lwp_argscopy function. - Making various modifications to lwp_load and elf_aux_fill to work with the new argument processing. - Removing unnecessary code related to dynamic loading and interpreter scripts. Signed-off-by: Shell <[email protected]>