fs_crypto_check()
QNX SDP8.0C Library ReferenceAPIDeveloper
Determine if the underlying filesystem supports encryption
Synopsis:
#include <fs_crypto_api.h>
#include <sys/fs_crypto.h>
int fs_crypto_check( const char *path,
int *preply );
Arguments:
- path
- The path to the filesystem's mountpoint.
- preply
- A pointer to a location where the function can store additional success or error information.
Library:
libfscrypto
Use the -l fscrypto option to qcc to link against this library.
Description:
The fs_crypto_check() function determines if the underlying filesystem supports encryption.
Note:
In order to use filesystem encryption, download the Encrypted Filesystem package from the QNX Software Center.
This function sets the variable pointed to by preply to one of the following values:
- FS_CRYPTO_REPLY_INVALID
- The command wasn't completed successfully.
- FS_CRYPTO_REPLY_SUPPORTED
- The filesystem supports encryption.
- FS_CRYPTO_REPLY_NOSUPPORT
- The filesystem doesn't support encryption.
Returns:
- EOK
- Success.
- EINVAL
- The path is invalid.
This function can also return any of the errors indicated by devctl() or open().
Classification:
| Safety: | |
|---|---|
| Cancellation point | Yes |
| Signal handler | No |
| Thread | Yes |
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