diff options
| -rw-r--r-- | src/daemon/dlt-daemon.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/src/daemon/dlt-daemon.c b/src/daemon/dlt-daemon.c index 660932c..6c1d070 100644 --- a/src/daemon/dlt-daemon.c +++ b/src/daemon/dlt-daemon.c @@ -1395,6 +1395,7 @@ void dlt_daemon_signal_handler(int sig) void dlt_daemon_daemonize(int verbose) { int i; + int fd; PRINT_FUNCTION_VERBOSE(verbose); @@ -1423,30 +1424,32 @@ void dlt_daemon_daemonize(int verbose) exit(-1); /* fork error */ } - /* Close descriptors */ - for (i=getdtablesize();i>=0;--i) - { - close(i); /* close all descriptors */ - } - /* Open standard descriptors stdin, stdout, stderr */ - i=open("/dev/null",O_RDWR); /* open stdin */ - if (-1 < i) + fd = open("/dev/null", O_RDWR); + if (fd != -1) { - if(dup(i) < 0) - dlt_log(LOG_WARNING, "Failed to direct stdout to /dev/null.\n");/* stdout */ - if(dup(i) < 0) - dlt_log(LOG_WARNING, "Failed to direct stderr to /dev/null.\n"); /* stderr */ + /* Redirect STDOUT to /dev/null */ + if (dup2(fd, STDOUT_FILENO) < 0) + { + dlt_vlog(LOG_WARNING, "Failed to direct stdout to /dev/null. Error: %s\n", strerror(errno)); + } + + /* Redirect STDERR to /dev/null */ + if (dup2(fd, STDERR_FILENO) < 0) + { + dlt_vlog(LOG_WARNING, "Failed to direct stderr to /dev/null. Error: %s\n", strerror(errno)); + } + + close(fd); } /* Set umask */ umask(DLT_DAEMON_UMASK); - /* Change to known directory */ - if(chdir(dltFifoBaseDir) < 0) + /* Change to root directory */ + if (chdir("/") < 0) { - snprintf(str, DLT_DAEMON_TEXTBUFSIZE, "Failed to chdir to fifo-dir %s\n", dltFifoBaseDir); - dlt_log(LOG_WARNING, str); + dlt_log(LOG_WARNING, "Failed to chdir to root\n"); } /* Catch signals */ |