int log_init(const char *output)
{
int new_logfd, fd;
gettimeofday(&start, NULL);
reset_buf_off();
if (output && !strncmp(output, "-", 2)) {
new_logfd = dup(STDOUT_FILENO);
if (new_logfd < 0) {
pr_perror("Can't dup stdout stream");
return -1;
}
} else if (output) {
new_logfd = open(output, O_CREAT|O_TRUNC|O_WRONLY|O_APPEND, 0600);
if (new_logfd < 0) {
pr_perror("Can't create log file %s", output);
return -1;
}
} else {
new_logfd = dup(DEFAULT_LOGFD);
if (new_logfd < 0) {
pr_perror("Can't dup log file");
return -1;
}
}
fd = install_service_fd(LOG_FD_OFF, new_logfd);
if (fd < 0)
goto err;
print_versions();
return 0;
err:
pr_perror("Log engine failure, can't duplicate descriptor");
return -1;
}
int log_init_by_pid(pid_t pid)
{
char path[PATH_MAX];
/*
* reset buf_off as this fn is called on each fork while
* restoring process tree
*/
reset_buf_off();
if (!opts.log_file_per_pid) {
buf_off += snprintf(buffer + buf_off, sizeof buffer - buf_off, "%6d: ", pid);
return 0;
}
if (!opts.output)
return 0;
snprintf(path, PATH_MAX, "%s.%d", opts.output, pid);
return log_init(path);
}
int log_init(const char *output)
{
int new_logfd, fd;
gettimeofday(&start, NULL);
reset_buf_off();
if (output) {
new_logfd = open(output, O_CREAT|O_TRUNC|O_WRONLY|O_APPEND, 0600);
if (new_logfd < 0) {
pr_perror("Can't create log file %s", output);
return -1;
}
if (cr_fchown(new_logfd)) {
pr_perror("Can't chown log file %s", output);
close(new_logfd);
return -1;
}
} else {
new_logfd = dup(DEFAULT_LOGFD);
if (new_logfd < 0) {
pr_perror("Can't dup log file");
return -1;
}
}
fd = install_service_fd(LOG_FD_OFF, new_logfd);
close(new_logfd);
if (fd < 0)
goto err;
return 0;
err:
pr_perror("Log engine failure, can't duplicate descriptor");
return -1;
}
