Commit 173e7331 authored by Mikhail Karpenko's avatar Mikhail Karpenko
Browse files

Check command pipe file before unlink

parent 4567a7bf

camogm.c

+3 −2
Original line number Diff line number Diff line
@@ -1328,7 +1328,7 @@ void clean_up(camogm_state *state) 
int listener_loop(camogm_state *state)

{

	FILE *cmd_file;

	int rslt, ret, cmd;

	int rslt, ret, cmd, f_ok;

	int fp0, fp1;

	int process = 1;

	unsigned int port = state->port_num;
@@ -1397,8 +1397,9 @@ int listener_loop(camogm_state *state) 


	// create a named pipe

	// always delete the pipe if it existed, start a fresh one

	f_ok = access(pipe_name, F_OK);

	ret = unlink(pipe_name);

	if (ret) {

	if (ret && f_ok == 0) {

		D1(fprintf(debug_file, "Unlink %s returned %d, errno=%d \n", pipe_name, ret, errno));

	}

	ret = mkfifo(pipe_name, 0777); //EEXIST