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Fix nasa#1465, add default handler for OS_strnlen
Calls to "OS_strnlen" are likely needed to return an actual length, so make a default handler that does return a length. The value may still be overridden in tests, though.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| /************************************************************************ | ||
| * NASA Docket No. GSC-18,719-1, and identified as “core Flight System: Bootes” | ||
| * | ||
| * Copyright (c) 2020 United States Government as represented by the | ||
| * Administrator of the National Aeronautics and Space Administration. | ||
| * All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); you may | ||
| * not use this file except in compliance with the License. You may obtain | ||
| * a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| ************************************************************************/ | ||
|
|
||
| /** | ||
| * \file | ||
| * | ||
| * | ||
| * Stub implementations for the functions defined in the OSAL API | ||
| * | ||
| * The stub implementation can be used for unit testing applications built | ||
| * on top of OSAL. The stubs do not do any real function, but allow | ||
| * the return code to be crafted such that error paths in the application | ||
| * can be executed. | ||
| */ | ||
|
|
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| #include "osapi-common.h" /* OSAL public API for this subsystem */ | ||
| #include "utstub-helpers.h" | ||
|
|
||
| /* | ||
| * ----------------------------------------------------------------- | ||
| * Default handler implementation for 'OS_strnlen' stub | ||
| * ----------------------------------------------------------------- | ||
| */ | ||
| void UT_DefaultHandler_OS_strnlen(void *UserObj, UT_EntryKey_t FuncKey, const UT_StubContext_t *Context) | ||
| { | ||
| const char *s; | ||
| const char *end; | ||
| size_t maxlen; | ||
| size_t retval; | ||
| int32 status; | ||
|
|
||
| if (UT_Stub_GetInt32StatusCode(Context, &status)) | ||
| { | ||
| /* If a retval was supplied in the test case, then use it */ | ||
| retval = status; | ||
| } | ||
| else | ||
| { | ||
| s = UT_Hook_GetArgValueByName(Context, "s", const char *); | ||
| maxlen = UT_Hook_GetArgValueByName(Context, "maxlen", size_t); | ||
|
|
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| /* This is basically the real impl of strnlen, as it | ||
| * usually needs to give back the appropriate value in | ||
| * order to follow the expected path */ | ||
| end = memchr(s, 0, maxlen); | ||
| if (end == NULL) | ||
| { | ||
| retval = maxlen; | ||
| } | ||
| else | ||
| { | ||
| retval = end - s; | ||
| } | ||
| } | ||
|
|
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| UT_Stub_SetReturnValue(FuncKey, retval); | ||
| } |
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