summaryrefslogtreecommitdiff
path: root/include/sqfs/error.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/sqfs/error.h')
-rw-r--r--include/sqfs/error.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/include/sqfs/error.h b/include/sqfs/error.h
index a755c0b..a9a0acf 100644
--- a/include/sqfs/error.h
+++ b/include/sqfs/error.h
@@ -20,18 +20,88 @@
#ifndef SQFS_ERROR_H
#define SQFS_ERROR_H
+/**
+ * @file error.h
+ *
+ * @brief Contains the @ref E_SQFS_ERROR enumerator.
+ */
+
+/**
+ * @enum E_SQFS_ERROR
+ *
+ * @brief Error codes that can be returned by various libsquashfs functions.
+ */
typedef enum {
+ /**
+ * @brief Allocation using malloc or calloc failed (returned NULL).
+ */
SQFS_ERROR_ALLOC = -1,
+
+ /**
+ * @brief Generic I/O error if a file read or write operation failed.
+ */
SQFS_ERROR_IO = -2,
+
+ /**
+ * @brief Generic compressor error returned if compressing data failed
+ * (some kind of internal error) or extracting failed (typically
+ * means the data is corrupted).
+ */
SQFS_ERROR_COMRPESSOR = -3,
+
+ /**
+ * @brief An internal error of the "this wasn't supposed to happen"
+ * kind that cannot easily be mapped to something usefull.
+ */
SQFS_ERROR_INTERNAL = -4,
+
+ /**
+ * @brief Attempted to read an on-disk data structure that appears to
+ * be corrupted, i.e. contains obvious non-sense values.
+ */
SQFS_ERROR_CORRUPTED = -5,
+
+ /**
+ * @brief Attempted to use an unsupported feature (e.g. an unknown
+ * compressor or xattr type).
+ */
SQFS_ERROR_UNSUPPORTED = -6,
+
+ /**
+ * @brief Attempted to read a data structure into memory would
+ * overflow the addressable memory. Usually indicates a
+ * corrupted or maliciously manipulated SquashFS filesystem.
+ */
SQFS_ERROR_OVERFLOW = -7,
+
+ /**
+ * @brief Attempted to perform an out-of-bounds read. If this happens
+ * when following a reference stored in a data structure, it
+ * usually indicates a corrupted or maliciously manipulated
+ * SquashFS filesystem.
+ */
SQFS_ERROR_OUT_OF_BOUNDS = -8,
+ /**
+ * @brief Specific error when reading the super block.
+ *
+ * Could not find the magic.
+ */
SFQS_ERROR_SUPER_MAGIC = -9,
+
+ /**
+ * @brief Specific error when reading the super block.
+ *
+ * The version indicated be the filesystem is not supported.
+ */
SFQS_ERROR_SUPER_VERSION = -10,
+
+ /**
+ * @brief Specific error when reading or initializing the super block.
+ *
+ * The block size specified is either not a power of 2, or outside the
+ * legal range (4k to 1M).
+ */
SQFS_ERROR_SUPER_BLOCK_SIZE = -11,
} E_SQFS_ERROR;