ffi: Allocate returned strings using libc.

  - Allocate all returned strings using libc's allocator.  This has
    the advantage that the user can easily use strings and free them
    using free(3).

  - Fixes #157.

2 files changed, 1 insertions, 6 deletions

diff --git a/ffi/include/sequoia/core.h b/ffi/include/sequoia/core.h
index 0e5dd6aa..829d7104 100644
--- a/ffi/include/sequoia/core.h
+++ b/ffi/include/sequoia/core.h
@@ -28,11 +28,6 @@ typedef struct sq_context *sq_context_t;
 sq_error_t sq_context_last_error (sq_context_t ctx);
 
 /*/
-/// Frees a string returned from Sequoia.
-/*/
-void sq_string_free (char *s);
-
-/*/
 /// Represents a `Context` configuration.
 /*/
 typedef struct sq_config *sq_config_t;
diff --git a/ffi/include/sequoia/error.h b/ffi/include/sequoia/error.h
index 647fd674..dd42753c 100644
--- a/ffi/include/sequoia/error.h
+++ b/ffi/include/sequoia/error.h
@@ -135,7 +135,7 @@ void sq_error_free (sq_error_t error);
 /*/
 /// Returns the error message.
 ///
-/// The returned value must be freed with `sq_string_free`.
+/// The returned value must be freed with `free(3)`.
 /*/
 char *sq_error_string (const sq_error_t err);