diff options
author | Sean Anderson | 2023-11-04 16:37:51 -0400 |
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committer | Tom Rini | 2023-11-16 12:43:49 -0500 |
commit | 9181cb0507d1dd5627cc3d9cd86d427abe00cc21 (patch) | |
tree | 0cd706c4991026ec68c46f009c8fa124e4e8d6e3 /include/os.h | |
parent | 333d43f6a3e2aa1d6249d22211d77802614e37e5 (diff) |
arch: sandbox: Add function to create temporary files
When working with sparse data buffers that may be larger than the address
space, it is convenient to work with files instead. Add a function to create
temporary files of a certain size.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Diffstat (limited to 'include/os.h')
-rw-r--r-- | include/os.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/os.h b/include/os.h index fc8a1b15cbf..877404a6c13 100644 --- a/include/os.h +++ b/include/os.h @@ -109,6 +109,19 @@ int os_unlink(const char *pathname); int os_persistent_file(char *buf, int maxsize, const char *fname); /** + * os_mktemp() - Create a temporary file + * @fname: The template to use for the file name. This must end with 6 Xs. It + * will be modified to the opened filename on success. + * @size: The size of the file + * + * Create a temporary file using @fname as a template, unlink it, and truncate + * it to @size. + * + * Return: A file descriptor, or negative errno on error + */ +int os_mktemp(char *fname, off_t size); + +/** * os_exit() - access to the OS exit() system call * * This exits with the supplied return code, which should be 0 to indicate |