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Fix handling of CATCH() or FAIL() macros around functions that should return an (akerr_ErrorContext *) but return an invalid pointer (to something not in our exception array)

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This commit is contained in:
Andrew Kesterson
2026-05-06 12:36:56 -04:00
parent c840536e1d
commit 0c29f5d69f
3 changed files with 31 additions and 0 deletions
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3
CMakeLists.txt
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@@ -36,9 +36,11 @@ target_compile_definitions(akerror
add_executable(test_err_catch tests/err_catch.c)
add_executable(test_err_cleanup tests/err_cleanup.c)
add_executable(test_err_trace tests/err_trace.c)
add_executable(test_err_improper_closure tests/err_improper_closure.c)
add_test(NAME err_catch COMMAND test_err_catch)
add_test(NAME err_cleanup COMMAND test_err_cleanup)
add_test(NAME err_trace COMMAND test_err_trace)
add_test(NAME err_improper_closure COMMAND test_err_improper_closure)
# Specify include directories for the library's headers (if applicable)
target_include_directories(akerror PUBLIC
@@ -48,6 +50,7 @@ target_include_directories(akerror PUBLIC
target_link_libraries(test_err_catch PRIVATE akerror)
target_link_libraries(test_err_cleanup PRIVATE akerror)
target_link_libraries(test_err_trace PRIVATE akerror)
target_link_libraries(test_err_improper_closure PRIVATE akerror)
set(main_lib_dest "lib/my_library-${MY_LIBRARY_VERSION}")
install(TARGETS akerror EXPORT akerror DESTINATION "lib/")

6
src/error.c
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@@ -14,6 +14,12 @@ char __AKERR_ERROR_NAMES[AKERR_MAX_ERR_VALUE+1][AKERR_MAX_ERROR_NAME_LENGTH];
akerr_ErrorContext AKERR_ARRAY_ERROR[AKERR_MAX_ARRAY_ERROR];
int akerr_valid_error_address(akerr_ErrorContext *ptr)
{
// Is this within the memory region occupied by AKERR_ARRAY_ERROR?
return ((ptr >= &AKERR_ARRAY_ERROR[0]) && (ptr <= &AKERR_ARRAY_ERROR[AKERR_MAX_ARRAY_ERROR-1]));
}
void akerr_default_logger(const char *fmt, ...)
{
#if defined(AKERR_USE_STDLIB) && AKERR_USE_STDLIB == 1

22
tests/err_improper_closure.c Normal file
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@@ -0,0 +1,22 @@
#include "akerror.h"
#include <stdio.h>
akerr_ErrorContext AKERR_NOIGNORE *improper_closure(void)
{
PREPARE_ERROR(errctx);
ATTEMPT {
} CLEANUP {
} PROCESS(errctx) {
} FINISH(errctx, true);
fprintf(stderr, "Improperly returning from improper_closure\n");
}
int main(void)
{
PREPARE_ERROR(errctx);
ATTEMPT {
CATCH(errctx, improper_closure());
} CLEANUP {
} PROCESS(errctx) {
} FINISH_NORETURN(errctx);
}