A small memory footprint AMQP implimentation
Dependents: iothub_client_sample_amqp remote_monitoring simplesample_amqp
sasl_anonymous.c
- Committer:
- AzureIoTClient
- Date:
- 2017-01-24
- Revision:
- 17:923575db8b2d
- Parent:
- 6:641a9672db08
- Child:
- 19:000ab4e6a2c1
File content as of revision 17:923575db8b2d:
// Copyright (c) Microsoft. All rights reserved. // Licensed under the MIT license. See LICENSE file in the project root for full license information. #include <stdlib.h> #include <string.h> #include "azure_uamqp_c/sasl_anonymous.h" #include "azure_uamqp_c/amqpalloc.h" #include "azure_c_shared_utility/xlogging.h" typedef struct SASL_ANONYMOUS_INSTANCE_TAG { unsigned char dummy; } SASL_ANONYMOUS_INSTANCE; /* Codes_SRS_SASL_ANONYMOUS_01_010: [saslanonymous_get_interface shall return a pointer to a SASL_MECHANISM_INTERFACE_DESCRIPTION structure that contains pointers to the functions: saslanonymous_create, saslanonymous_destroy, saslanonymous_get_init_bytes, saslanonymous_get_mechanism_name, saslanonymous_challenge.] */ static const SASL_MECHANISM_INTERFACE_DESCRIPTION saslanonymous_interface = { saslanonymous_create, saslanonymous_destroy, saslanonymous_get_init_bytes, saslanonymous_get_mechanism_name, saslanonymous_challenge }; /* Codes_SRS_SASL_ANONYMOUS_01_001: [saslanonymous_create shall return on success a non-NULL handle to a new SASL anonymous mechanism.] */ CONCRETE_SASL_MECHANISM_HANDLE saslanonymous_create(void* config) { /* Codes_SRS_SASL_ANONYMOUS_01_003: [Since this is the ANONYMOUS SASL mechanism, config shall be ignored.] */ (void)config; /* Codes_SRS_SASL_ANONYMOUS_01_002: [If allocating the memory needed for the saslanonymous instance fails then saslanonymous_create shall return NULL.] */ return amqpalloc_malloc(sizeof(SASL_ANONYMOUS_INSTANCE)); } void saslanonymous_destroy(CONCRETE_SASL_MECHANISM_HANDLE sasl_mechanism_concrete_handle) { /* Codes_SRS_SASL_ANONYMOUS_01_005: [If the argument concrete_sasl_mechanism is NULL, saslanonymous_destroy shall do nothing.] */ if (sasl_mechanism_concrete_handle != NULL) { /* Codes_SRS_SASL_ANONYMOUS_01_004: [saslanonymous_destroy shall free all resources associated with the SASL mechanism.] */ amqpalloc_free(sasl_mechanism_concrete_handle); } } int saslanonymous_get_init_bytes(CONCRETE_SASL_MECHANISM_HANDLE sasl_mechanism_concrete_handle, SASL_MECHANISM_BYTES* init_bytes) { int result; /* Codes_SRS_SASL_ANONYMOUS_01_007: [If the any argument is NULL, saslanonymous_get_init_bytes shall return a non-zero value.] */ if ((sasl_mechanism_concrete_handle == NULL) || (init_bytes == NULL)) { result = __LINE__; } else { /* Codes_SRS_SASL_ANONYMOUS_01_012: [The bytes field of init_buffer shall be set to NULL.] */ init_bytes->bytes = NULL; /* Codes_SRS_SASL_ANONYMOUS_01_006: [saslanonymous_get_init_bytes shall validate the concrete_sasl_mechanism argument and set the length of the init_bytes argument to be zero.] */ init_bytes->length = 0; /* Codes_SRS_SASL_ANONYMOUS_01_011: [On success saslanonymous_get_init_bytes shall return zero.] */ result = 0; } return result; } const char* saslanonymous_get_mechanism_name(CONCRETE_SASL_MECHANISM_HANDLE sasl_mechanism) { const char* result; /* Codes_SRS_SASL_ANONYMOUS_01_009: [If the argument concrete_sasl_mechanism is NULL, saslanonymous_get_mechanism_name shall return NULL.] */ if (sasl_mechanism == NULL) { result = NULL; } else { /* Codes_SRS_SASL_ANONYMOUS_01_008: [saslanonymous_get_mechanism_name shall validate the argument concrete_sasl_mechanism and on success it shall return a pointer to the string "ANONYMOUS".] */ result = "ANONYMOUS"; } return result; } int saslanonymous_challenge(CONCRETE_SASL_MECHANISM_HANDLE concrete_sasl_mechanism, const SASL_MECHANISM_BYTES* challenge_bytes, SASL_MECHANISM_BYTES* response_bytes) { int result; (void)challenge_bytes; /* Codes_SRS_SASL_ANONYMOUS_01_015: [If the concrete_sasl_mechanism or response_bytes argument is NULL then saslanonymous_challenge shall fail and return a non-zero value.] */ if ((concrete_sasl_mechanism == NULL) || (response_bytes == NULL)) { result = __LINE__; } else { /* Codes_SRS_SASL_ANONYMOUS_01_013: [saslanonymous_challenge shall set the response_bytes buffer to NULL and 0 size as the ANONYMOUS SASL mechanism does not implement challenge/response.] */ response_bytes->bytes = NULL; response_bytes->length = 0; /* Codes_SRS_SASL_ANONYMOUS_01_014: [On success, saslanonymous_challenge shall return 0.] */ result = 0; } return result; } const SASL_MECHANISM_INTERFACE_DESCRIPTION* saslanonymous_get_interface(void) { return &saslanonymous_interface; }