| author |  Matthew Lugg <mlugg@mlugg.co.uk> 2025-03-12 02:08:02+00:00 |
| committer | Matthew Lugg <mlugg@mlugg.co.uk> 2025-04-02 05:57:50+01:00 |
| log | d8ac37fcc8d46adab6131db9c1a35131919f002b |
| tree | 4980249c51f0ba0c8101a4d64e66f0c09c19dc6b |
| parent | 87209954a74bbf9b82b7ab24c0389a4a133edd31 |
| signature |  Commit is signed but in an unrecognized format. |
stage1: fix `wasi_snapshot_preview1_fd_seek` on cache files
`wasm2c` uses an interesting mechanism to "fake" the existence of cache
directories. However, `wasi_snapshot_preview1_fd_seek` was not correctly
integrated with this system, so previously crashed when run on a file in
a cache directory due to trying to call `fseek` on a `FILE *` which was
`NULL`.1 files changed, 2 insertions(+), 0 deletions(-)
stage1
stage1/wasi.c+2
| ... | @@ -1003,6 +1003,8 @@ uint32_t wasi_snapshot_preview1_fd_seek(uint32_t fd, uint64_t in_offset, uint32_ | ... | @@ -1003,6 +1003,8 @@ uint32_t wasi_snapshot_preview1_fd_seek(uint32_t fd, uint64_t in_offset, uint32_ |
| 1003 | default: panic("unimplemented"); | 1003 | default: panic("unimplemented"); |
| 1004 | } | 1004 | } |
| 1005 | 1005 | ||
| 1006 | if (fds[fd].stream == NULL) return wasi_errno_success; | ||
| 1007 | |||
| 1006 | int seek_whence; | 1008 | int seek_whence; |
| 1007 | switch (whence) { | 1009 | switch (whence) { |
| 1008 | case wasi_whence_set: | 1010 | case wasi_whence_set: |