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Fix nasa#435, convert internal PSP UT stubs into handler pattern
Implements handlers to mimic old stub behavior whenever possible
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| /************************************************************************ | ||
| * 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. | ||
| ************************************************************************/ | ||
|
|
||
| /* PSP coverage stub replacement for stdio.h */ | ||
| #include <string.h> | ||
| #include <stdlib.h> | ||
| #include <stdio.h> | ||
| #include "utstubs.h" | ||
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| #include "PCS_stdio.h" | ||
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| struct PCS_FILE | ||
| { | ||
| int f; | ||
| }; | ||
|
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| #define PCS_STDIO_MAX_SIZE 0x01000000 | ||
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| void UT_DefaultHandler_PCS_fgets(void *UserObj, UT_EntryKey_t FuncKey, const UT_StubContext_t *Context) | ||
| { | ||
| /* char *PCS_fgets(char *s, int n, PCS_FILE *stream) */ | ||
| char *s = UT_Hook_GetArgValueByName(Context, "s", char *); | ||
| int n = UT_Hook_GetArgValueByName(Context, "n", int); | ||
|
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| int32 Status; | ||
| uint32 CopySize; | ||
| void * DataBufferPtr; | ||
|
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| Status = 0; | ||
| UT_GetDataBuffer(FuncKey, &DataBufferPtr, NULL, NULL); | ||
| UT_Stub_GetInt32StatusCode(Context, &Status); | ||
|
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| if (DataBufferPtr != NULL) | ||
| { | ||
| if (Status > n) | ||
| { | ||
| CopySize = n; | ||
| } | ||
| else | ||
| { | ||
| CopySize = Status; | ||
| } | ||
|
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| CopySize = UT_Stub_CopyToLocal(UT_KEY(PCS_fgets), s, CopySize); | ||
| } | ||
| else | ||
| { | ||
| CopySize = 0; | ||
| } | ||
|
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| if (n < Status) | ||
| { | ||
| Status = n; | ||
| } | ||
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| if (UT_GetStubCount(UT_KEY(PCS_fgets) < 4) && Status > 0 && CopySize < Status) | ||
| { | ||
| memset(&s[CopySize], 'x', Status - CopySize); | ||
| CopySize = Status; | ||
| } | ||
|
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| if (CopySize <= 0) | ||
| { | ||
| s = NULL; | ||
| } | ||
| else | ||
| { | ||
| s[CopySize - 1] = 0; | ||
| } | ||
|
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| UT_Stub_SetReturnValue(FuncKey, s); | ||
| } | ||
|
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| void UT_DefaultHandler_PCS_fopen(void *UserObj, UT_EntryKey_t FuncKey, const UT_StubContext_t *Context) | ||
| { | ||
| /* PCS_FILE *PCS_fopen(const char *filename, const char *modes) */ | ||
| PCS_FILE * retval; | ||
| static PCS_FILE FOPEN_FP = {0}; | ||
|
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| if (!UT_Stub_GetInt32StatusCode(Context, NULL)) | ||
| { | ||
| retval = &FOPEN_FP; | ||
| UT_Stub_SetReturnValue(FuncKey, retval); | ||
| } | ||
| } | ||
|
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| void UT_DefaultHandler_PCS_snprintf(void *UserObj, UT_EntryKey_t FuncKey, const UT_StubContext_t *Context, | ||
| va_list ArgList) | ||
| { | ||
| /* int PCS_snprintf(char *s, size_t maxlen, const char *format, ...) */ | ||
| char * s = UT_Hook_GetArgValueByName(Context, "s", char *); | ||
| size_t maxlen = UT_Hook_GetArgValueByName(Context, "maxlen", size_t); | ||
| const char *format = UT_Hook_GetArgValueByName(Context, "format", const char *); | ||
|
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| int retval; | ||
|
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| /* need to actually _do_ the snprintf */ | ||
| if (!UT_Stub_GetInt32StatusCode(Context, NULL)) | ||
| { | ||
| retval = vsnprintf(s, maxlen, format, ArgList); | ||
| UT_Stub_SetReturnValue(FuncKey, retval); | ||
| } | ||
| } | ||
|
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| void UT_DefaultHandler_PCS_vsnprintf(void *UserObj, UT_EntryKey_t FuncKey, const UT_StubContext_t *Context) | ||
| { | ||
| /* int PCS_vsnprintf(char *s, size_t maxlen, const char *format, PCS_va_list arg) */ | ||
| char * s = UT_Hook_GetArgValueByName(Context, "s", char *); | ||
| size_t maxlen = UT_Hook_GetArgValueByName(Context, "maxlen", size_t); | ||
| const char *format = UT_Hook_GetArgValueByName(Context, "format", const char *); | ||
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| int retval = 0; | ||
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| /* need to actually _do_ something here - | ||
| * cannot do the real vsnprintf because we lost the args. */ | ||
| if (!UT_Stub_GetInt32StatusCode(Context, NULL)) | ||
| { | ||
| retval = snprintf(s, maxlen, "%s", format); | ||
| UT_Stub_SetReturnValue(FuncKey, retval); | ||
| } | ||
| } | ||
|
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| static PCS_FILE LOCAL_FP[3] = {{10}, {11}, {12}}; | ||
|
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| PCS_FILE *PCS_stdin = &LOCAL_FP[0]; | ||
| PCS_FILE *PCS_stdout = &LOCAL_FP[1]; | ||
| PCS_FILE *PCS_stderr = &LOCAL_FP[2]; |
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