tools/power/acpi/tools/acpidump/apfiles.c

Source file repositories/reference/linux-study-clean/tools/power/acpi/tools/acpidump/apfiles.c

File Facts

System
Linux kernel
Corpus path
tools/power/acpi/tools/acpidump/apfiles.c
Extension
.c
Size
5641 bytes
Lines
230
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

if (in_char == '\n') {
			in_char = fgetc(stdin);
		}

		if (in_char != 'y' && in_char != 'Y') {
			return (-1);
		}
	}
#endif

	return (0);
}

/******************************************************************************
 *
 * FUNCTION:    ap_open_output_file
 *
 * PARAMETERS:  pathname            - Output filename
 *
 * RETURN:      Open file handle
 *
 * DESCRIPTION: Open a text output file for acpidump. Checks if file already
 *              exists.
 *
 ******************************************************************************/

int ap_open_output_file(char *pathname)
{
	ACPI_FILE file;

	/* If file exists, prompt for overwrite */

	if (ap_is_existing_file(pathname) != 0) {
		return (-1);
	}

	/* Point stdout to the file */

	file = fopen(pathname, "w");
	if (!file) {
		fprintf(stderr, "Could not open output file: %s\n", pathname);
		return (-1);
	}

	/* Save the file and path */

	gbl_output_file = file;
	gbl_output_filename = pathname;
	return (0);
}

/******************************************************************************
 *
 * FUNCTION:    ap_write_to_binary_file
 *
 * PARAMETERS:  table               - ACPI table to be written
 *              instance            - ACPI table instance no. to be written
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Write an ACPI table to a binary file. Builds the output
 *              filename from the table signature.
 *
 ******************************************************************************/

int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
{
	char filename[ACPI_NAMESEG_SIZE + 16];
	char instance_str[16];
	ACPI_FILE file;
	acpi_size actual;
	u32 table_length;

	/* Obtain table length */

	table_length = ap_get_table_length(table);

	/* Construct lower-case filename from the table local signature */

	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
		ACPI_COPY_NAMESEG(filename, ACPI_RSDP_NAME);
	} else {
		ACPI_COPY_NAMESEG(filename, table->signature);
	}

	filename[0] = (char)tolower((int)filename[0]);
	filename[1] = (char)tolower((int)filename[1]);
	filename[2] = (char)tolower((int)filename[2]);
	filename[3] = (char)tolower((int)filename[3]);
	filename[ACPI_NAMESEG_SIZE] = 0;

Annotation

Implementation Notes