diff options
Diffstat (limited to 'wutil.cpp')
| -rw-r--r-- | wutil.cpp | 38 |
1 files changed, 31 insertions, 7 deletions
@@ -77,14 +77,32 @@ bool wreaddir_resolving(DIR *dir, const std::wstring &dir_path, std::wstring &ou if (out_is_dir) { /* The caller cares if this is a directory, so check */ - bool is_dir; + bool is_dir = false; + + /* We may be able to skip stat, if the readdir can tell us the file type directly */ + bool check_with_stat = true; +#ifdef HAVE_STRUCT_DIRENT_D_TYPE if (d->d_type == DT_DIR) { + /* Known directory */ is_dir = true; + check_with_stat = false; } else if (d->d_type == DT_LNK || d->d_type == DT_UNKNOWN) { /* We want to treat symlinks to directories as directories. Use stat to resolve it. */ + check_with_stat = true; + } + else + { + /* Regular file */ + is_dir = false; + check_with_stat = false; + } +#endif // HAVE_STRUCT_DIRENT_D_TYPE + if (check_with_stat) + { + /* We couldn't determine the file type from the dirent; check by stat'ing it */ cstring fullpath = wcs2string(dir_path); fullpath.push_back('/'); fullpath.append(d->d_name); @@ -98,10 +116,6 @@ bool wreaddir_resolving(DIR *dir, const std::wstring &dir_path, std::wstring &ou is_dir = !!(S_ISDIR(buf.st_mode)); } } - else - { - is_dir = false; - } *out_is_dir = is_dir; } return true; @@ -309,12 +323,23 @@ const char *safe_strerror(int err) // uClibc does not have sys_errlist, however, its strerror is believed to be async-safe // See #808 return strerror(err); -#else +#elif defined(HAVE__SYS__ERRS) || defined(HAVE_SYS_ERRLIST) +#ifdef HAVE_SYS_ERRLIST if (err >= 0 && err < sys_nerr && sys_errlist[err] != NULL) { return sys_errlist[err]; } +#elif defined(HAVE__SYS__ERRS) + extern const char _sys_errs[]; + extern const int _sys_index[]; + extern int _sys_num_err; + + if (err >= 0 && err < _sys_num_err) { + return &_sys_errs[_sys_index[err]]; + } +#endif // either HAVE__SYS__ERRS or HAVE_SYS_ERRLIST else +#endif // defined(HAVE__SYS__ERRS) || defined(HAVE_SYS_ERRLIST) { int saved_err = errno; @@ -331,7 +356,6 @@ const char *safe_strerror(int err) errno = saved_err; return buff; } -#endif } void safe_perror(const char *message) |