tools/testing/selftests/efivarfs/open-unlink.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/efivarfs/open-unlink.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/efivarfs/open-unlink.c
Extension
.c
Size
2252 bytes
Lines
135
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 (rc < 0) {
			perror("ioctl(FS_IOC_SETFLAGS)");
			return EXIT_FAILURE;
		}
	}

	fd = open(path, O_RDONLY);
	if (fd < 0) {
		perror("open");
		return EXIT_FAILURE;
	}

	if (unlink(path) < 0) {
		perror("unlink");
		return EXIT_FAILURE;
	}

	rc = read(fd, buf, sizeof(buf));
	if (rc > 0) {
		fprintf(stderr, "reading from an unlinked variable "
				"shouldn't be possible\n");
		return EXIT_FAILURE;
	}

	return EXIT_SUCCESS;
}

Annotation

Implementation Notes