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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-11-24 16:36:20 +0100
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-11-24 16:47:49 +0100
commit162142b7930248d83a77e8d8f4eba5896d5b267a (patch)
treef65796333f80b4f710a19f5fcb6770d6aedbafe6 /include/sqfs
parentdea3b64dd11a3a3391bd9d8f8c26f20392e7eb3c (diff)
Cleanup libsquashfs invalid argument error codes
- Add an explicit "you're holding it wrong" error code. - Consistently return error codes and not have some special places where -1 is returned. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'include/sqfs')
-rw-r--r--include/sqfs/compressor.h3
-rw-r--r--include/sqfs/error.h5
-rw-r--r--include/sqfs/xattr.h3
3 files changed, 9 insertions, 2 deletions
diff --git a/include/sqfs/compressor.h b/include/sqfs/compressor.h
index a53fbc1..4f22b0d 100644
--- a/include/sqfs/compressor.h
+++ b/include/sqfs/compressor.h
@@ -386,7 +386,8 @@ SQFS_API const char *sqfs_compressor_name_from_id(E_SQFS_COMPRESSOR id);
* @param name The name of the compressor backend.
* @param out Returns the coresponding @ref E_SQFS_COMPRESSOR identifier.
*
- * @return Zero on success, -1 if the backend is unknown.
+ * @return Zero on success, @ref SQFS_ERROR_UNSUPPORTED if the backend
+ * is unknown.
*/
SQFS_API
int sqfs_compressor_id_from_name(const char *name, E_SQFS_COMPRESSOR *out);
diff --git a/include/sqfs/error.h b/include/sqfs/error.h
index 9ff77d4..77e33ed 100644
--- a/include/sqfs/error.h
+++ b/include/sqfs/error.h
@@ -128,6 +128,11 @@ typedef enum {
* a regular file or a regular file inode.
*/
SQFS_ERROR_NOT_FILE = -15,
+
+ /**
+ * @brief An invalid argument was passed to a library function.
+ */
+ SQFS_ERROR_ARG_INVALID = -16,
} E_SQFS_ERROR;
#endif /* SQFS_ERROR_H */
diff --git a/include/sqfs/xattr.h b/include/sqfs/xattr.h
index 0f74c94..f2a87d3 100644
--- a/include/sqfs/xattr.h
+++ b/include/sqfs/xattr.h
@@ -173,7 +173,8 @@ SQFS_API const char *sqfs_get_xattr_prefix(E_SQFS_XATTR_TYPE id);
* This function takes a key and finds the enumerator value that represents
* its prefix. An error value is returned if the given prefix isn't supported.
*
- * @return On success an @ref E_SQFS_XATTR_TYPE, -1 if it isn't supported.
+ * @return On success an @ref E_SQFS_XATTR_TYPE. If not supported, the
+ * @ref SQFS_ERROR_UNSUPPORTED error code.
*/
SQFS_API int sqfs_get_xattr_prefix_id(const char *key);