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elphel-apps-camogm
Commit 173e7331 authored by Mikhail Karpenko's avatar Mikhail Karpenko
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Check command pipe file before unlink

parent 4567a7bf
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Showing with 3 additions and 2 deletions
camogm.c
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...@@ -1328,7 +1328,7 @@ void clean_up(camogm_state *state) ...@@ -1328,7 +1328,7 @@ void clean_up(camogm_state *state)
int listener_loop(camogm_state *state) int listener_loop(camogm_state *state)
{ {
FILE *cmd_file; FILE *cmd_file;
int rslt, ret, cmd; int rslt, ret, cmd, f_ok;
int fp0, fp1; int fp0, fp1;
int process = 1; int process = 1;
unsigned int port = state->port_num; unsigned int port = state->port_num;
...@@ -1397,8 +1397,9 @@ int listener_loop(camogm_state *state) ...@@ -1397,8 +1397,9 @@ int listener_loop(camogm_state *state)
// create a named pipe // create a named pipe
// always delete the pipe if it existed, start a fresh one // always delete the pipe if it existed, start a fresh one
f_ok = access(pipe_name, F_OK);
ret = unlink(pipe_name); 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)); D1(fprintf(debug_file, "Unlink %s returned %d, errno=%d \n", pipe_name, ret, errno));
} }
ret = mkfifo(pipe_name, 0777); //EEXIST ret = mkfifo(pipe_name, 0777); //EEXIST
......
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