Fix FAST_CreateCheckpoint in c++ interface#2881
Merged
deslaughter merged 2 commits intoOpenFAST:rc-4.1.1from Jun 25, 2025
marchdf:fix-cpp-createchkp
Merged
Fix FAST_CreateCheckpoint in c++ interface#2881deslaughter merged 2 commits intoOpenFAST:rc-4.1.1from marchdf:fix-cpp-createchkp
deslaughter merged 2 commits intoOpenFAST:rc-4.1.1from
marchdf:fix-cpp-createchkp
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FAST_CreateCheckpoint expects a fixed sized char buffer of size 1025:
`CHARACTER(KIND=C_CHAR), INTENT(IN ) ::
CheckpointRootName_c(IntfStrLen)`. However the c++ is taking a 1 char
string and sending a pointer to that data to the Fortran. The Fortran
`TRANSFER` function then throws a good old:
```
==2684227==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x5120002144e8 at pc 0x557e98358a61 bp 0x7ffc0f87ea90 sp 0x7ffc0f87e248
READ of size 1025 at 0x5120002144e8 thread T0
#0 0x557e98358a60 in memcpy /mnt/vdb/home/jrood/goose/spack/var/spack/stage/spack-stage-llvm-17.0.6-fzo52dlnsdgyyb3wgxrrlxmnvepk6esa/spack-src/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors_memintrinsics.inc:115:5
#1 0x7f0d5b25c311 in FAST_CreateCheckpoint /mnt/vdb/home/mhenryde/exawind/exawind-manager/environments/nalu-wind-dev/openfast/modules/openfast-library/src/FAST_Library.f90:445:76
#2 0x7f0d5f5ea22e in fast::OpenFAST::step(bool)
/mnt/vdb/home/mhenryde/exawind/exawind-manager/environments/nalu-wind-dev/openfast/glue-codes/openfast-cpp/src/OpenFAST.cpp:1436:17
```
This PR fixes this error.
deslaughter
reviewed
Jun 24, 2025
deslaughter
approved these changes
Jun 25, 2025
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FAST_CreateCheckpoint expects a fixed sized char buffer of size 1025:
CHARACTER(KIND=C_CHAR), INTENT(IN ) :: CheckpointRootName_c(IntfStrLen). However the c++ is taking a 1 char string and sending a pointer to that data to the Fortran. The FortranTRANSFERfunction then throws a good old:This PR fixes this error.