diff options
| -rw-r--r-- | sysdeps/posix/pathconf.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sysdeps/posix/pathconf.c b/sysdeps/posix/pathconf.c index 4ce5c0d1d7..63a3a9c511 100644 --- a/sysdeps/posix/pathconf.c +++ b/sysdeps/posix/pathconf.c @@ -21,6 +21,7 @@ #include <unistd.h> #include <limits.h> #include <fcntl.h> +#include <sys/stat.h> #include <sys/statfs.h> #include <sys/statvfs.h> @@ -138,7 +139,16 @@ __pathconf (const char *path, int name) case _PC_ASYNC_IO: #ifdef _POSIX_ASYNC_IO - return _POSIX_ASYNC_IO; + { + /* AIO is only allowed on regular files and block devices. */ + struct stat64 st; + + if (__xstat64 (_STAT_VER, path, &st) < 0 + || (! S_ISREG (st.st_mode) && ! S_ISBLK (st.st_mode))) + return -1; + else + return 1; + } #else return -1; #endif |