DOKK / manpages / debian 11 / libbson-doc / bson_validate_with_error.3.en
BSON_VALIDATE_WITH_ERROR(3) libbson BSON_VALIDATE_WITH_ERROR(3)

bson_validate_with_error - bson_validate_with_error()

typedef enum {


   BSON_VALIDATE_NONE = 0,


   BSON_VALIDATE_UTF8 = (1 << 0),


   BSON_VALIDATE_DOLLAR_KEYS = (1 << 1),


   BSON_VALIDATE_DOT_KEYS = (1 << 2),


   BSON_VALIDATE_UTF8_ALLOW_NULL = (1 << 3),


   BSON_VALIDATE_EMPTY_KEYS = (1 << 4),
} bson_validate_flags_t;
bool
bson_validate_with_error (const bson_t *bson,


                          bson_validate_flags_t flags,


                          bson_error_t *error);


  • bson: A bson_t.
  • flags: A bitwise-or of all desired validation flags.
  • error: Optional bson_error_t.

Validates a BSON document by walking through the document and inspecting the keys and values for valid content.

You can modify how the validation occurs through the use of the flags parameter. A description of their effect is below.

  • BSON_VALIDATE_NONE Basic validation of BSON length and structure.
  • BSON_VALIDATE_UTF8 All keys and string values are checked for invalid UTF-8.
  • BSON_VALIDATE_UTF8_ALLOW_NULL String values are allowed to have embedded NULL bytes.
  • BSON_VALIDATE_DOLLAR_KEYS Prohibit keys that start with $ outside of a "DBRef" subdocument.
  • BSON_VALIDATE_DOT_KEYS Prohibit keys that contain . anywhere in the string.
  • BSON_VALIDATE_EMPTY_KEYS Prohibit zero-length keys.

bson_validate().

bson_visitor_t can be used for custom validation, example_custom_validation.

Returns true if bson is valid; otherwise false and error is filled out.

The bson_error_t domain is set to BSON_ERROR_INVALID. Its code is set to one of the bson_validate_flags_t flags indicating which validation failed; for example, if a key contains invalid UTF-8, then the code is set to BSON_VALIDATE_UTF8, but if the basic structure of the BSON document is corrupt, the code is set to BSON_VALIDATE_NONE. The error message is filled out, and gives more detail if possible.

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June 4, 2021 1.17.6