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| author | Tavian Barnes <tavianator@tavianator.com> | 2024-04-19 14:15:30 -0400 |
|---|---|---|
| committer | Tavian Barnes <tavianator@tavianator.com> | 2024-04-19 15:50:45 -0400 |
| commit | 6cdb407aa23d8b129e9b9a49a4528c3e0def69e6 (patch) | |
| tree | b32a4862101e4144eaff83e3baeabbb98aedabba /src/bfstd.c | |
| parent | 71f822ec2bf8c41f782f154d87b7b415a530dd03 (diff) | |
| download | bfs-6cdb407aa23d8b129e9b9a49a4528c3e0def69e6.tar.xz | |
config: Check for strerror_[lr]()
Diffstat (limited to 'src/bfstd.c')
| -rw-r--r-- | src/bfstd.c | 42 |
1 files changed, 20 insertions, 22 deletions
diff --git a/src/bfstd.c b/src/bfstd.c index e2c2b97..1144380 100644 --- a/src/bfstd.c +++ b/src/bfstd.c @@ -317,35 +317,33 @@ const char *xstrerror(int errnum) { const char *ret = NULL; static thread_local char buf[256]; - // - __APPLE__ - // - __COSMOPOLITAN__ - // - No strerror_l() - // - __FreeBSD__ && SANITIZE_MEMORY - // - duplocale() triggers https://github.com/llvm/llvm-project/issues/65532 -#if __APPLE__ || __COSMOPOLITAN__ || (__FreeBSD__ && SANITIZE_MEMORY) - if (strerror_r(errnum, buf, sizeof(buf)) == 0) { - ret = buf; - } -#else -# if __NetBSD__ - // NetBSD has no thread-specific locales - locale_t loc = LC_GLOBAL_LOCALE; -# else + // On FreeBSD with MemorySanitizer, duplocale() triggers + // https://github.com/llvm/llvm-project/issues/65532 +#if BFS_HAS_STRERROR_L && !(__FreeBSD__ && SANITIZE_MEMORY) +# if BFS_HAS_USELOCALE locale_t loc = uselocale((locale_t)0); +# else + locale_t loc = LC_GLOBAL_LOCALE; # endif - locale_t copy = loc; - if (copy == LC_GLOBAL_LOCALE) { - copy = duplocale(copy); + bool free_loc = false; + if (loc == LC_GLOBAL_LOCALE) { + loc = duplocale(loc); + free_loc = true; } - if (copy != (locale_t)0) { - ret = strerror_l(errnum, copy); - - if (loc == LC_GLOBAL_LOCALE) { - freelocale(copy); + if (loc != (locale_t)0) { + ret = strerror_l(errnum, loc); + if (free_loc) { + freelocale(loc); } } +#elif BFS_HAS_STRERROR_R_POSIX + if (strerror_r(errnum, buf, sizeof(buf)) == 0) { + ret = buf; + } +#elif BFS_HAS_STRERROR_R_GNU + ret = strerror_r(errnum, buf, sizeof(buf)); #endif if (!ret) { |