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Check return values for fcntl in tor_spawn_background.

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[CID 718609]
This commit is contained in:
Nick Mathewson 2014-08-21 10:38:19 -04:00
parent 377b5c0510
commit 0de7565dfd
1 changed files with 5 additions and 2 deletions
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7
src/common/util.c
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@ -4052,8 +4052,11 @@ tor_spawn_background(const char *const filename, const char **argv,
status = process_handle->status = PROCESS_STATUS_RUNNING;
/* Set stdout/stderr pipes to be non-blocking */
fcntl(process_handle->stdout_pipe, F_SETFL, O_NONBLOCK);
fcntl(process_handle->stderr_pipe, F_SETFL, O_NONBLOCK);
if (fcntl(process_handle->stdout_pipe, F_SETFL, O_NONBLOCK) < 0 ||
fcntl(process_handle->stderr_pipe, F_SETFL, O_NONBLOCK) < 0) {
log_warn(LD_GENERAL, "Failed to set stderror/stdout pipes nonblocking "
"in parent process: %s", strerror(errno));
}
/* Open the buffered IO streams */
process_handle->stdout_handle = fdopen(process_handle->stdout_pipe, "r");
process_handle->stderr_handle = fdopen(process_handle->stderr_pipe, "r");