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-rw-r--r--src/include/libpq/libpq-be.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/include/libpq/libpq-be.h b/src/include/libpq/libpq-be.h
index 2f6c29200ba..7fe92b15477 100644
--- a/src/include/libpq/libpq-be.h
+++ b/src/include/libpq/libpq-be.h
@@ -312,7 +312,7 @@ extern ssize_t be_tls_read(Port *port, void *ptr, size_t len, int *waitfor);
/*
* Write data to a secure connection.
*/
-extern ssize_t be_tls_write(Port *port, void *ptr, size_t len, int *waitfor);
+extern ssize_t be_tls_write(Port *port, const void *ptr, size_t len, int *waitfor);
/*
* Return information about the SSL connection.
@@ -352,7 +352,7 @@ extern bool be_gssapi_get_delegation(Port *port);
/* Read and write to a GSSAPI-encrypted connection. */
extern ssize_t be_gssapi_read(Port *port, void *ptr, size_t len);
-extern ssize_t be_gssapi_write(Port *port, void *ptr, size_t len);
+extern ssize_t be_gssapi_write(Port *port, const void *ptr, size_t len);
#endif /* ENABLE_GSS */
extern PGDLLIMPORT ProtocolVersion FrontendProtocol;