diff options
Diffstat (limited to 'ext/clogger_ext/clogger.c')
| -rw-r--r-- | ext/clogger_ext/clogger.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/ext/clogger_ext/clogger.c b/ext/clogger_ext/clogger.c index 838f37c..834debe 100644 --- a/ext/clogger_ext/clogger.c +++ b/ext/clogger_ext/clogger.c @@ -260,7 +260,17 @@ static int raw_fd(VALUE my_fd) if (flags < 0) rb_sys_fail("fcntl"); - return (flags & O_NONBLOCK) ? -1 : fd; + if (flags & O_NONBLOCK) { + struct stat sb; + + if (fstat(fd, &sb) < 0) + return -1; + + /* O_NONBLOCK is no-op for regular files: */ + if (! S_ISREG(sb.st_mode)) + return -1; + } + return fd; #else /* platforms w/o fcntl/F_GETFL/O_NONBLOCK */ return -1; #endif /* platforms w/o fcntl/F_GETFL/O_NONBLOCK */ |