void setup_pseudo_filesystems()
{
// This only works in the real environment.
#ifndef UNITTEST
OK_OR_WARN(mount("", "/proc", "proc", 0, NULL), "Cannot mount /proc");
OK_OR_WARN(mount("", "/sys", "sysfs", 0, NULL), "Cannot mount /sys");
// /dev should be automatically created/mounted by Linux
OK_OR_WARN(mkdir("/dev/pts", 0755), "Cannot create /dev/pts");
OK_OR_WARN(mkdir("/dev/shm", 0755), "Cannot create /dev/shm");
OK_OR_WARN(mount("", "/dev/pts", "devpts", 0, "gid=5,mode=620"), "Cannot mount /dev/pts");
#endif
}
static void configure_hostname()
{
debug("configure_hostname");
char hostname[128] = "\0";
if (options.hostname_pattern) {
// Set the hostname based on a pattern
char unique_id[64] = "xxxxxxxx";
if (options.uniqueid_exec)
system_cmd(options.uniqueid_exec, unique_id, sizeof(unique_id));
sprintf(hostname, options.hostname_pattern, unique_id);
} else {
// Set the hostname from /etc/hostname
FILE *fp = fopen("/etc/hostname", "r");
if (!fp) {
warn("/etc/hostname not found");
return;
}
// The hostname should be the first line of the file
if (fgets(hostname, sizeof(hostname), fp))
trim_whitespace(hostname);
fclose(fp);
}
if (*hostname == '\0') {
warn("Not setting empty hostname");
return;
}
debug("Hostname: %s", hostname);
#ifndef UNITTEST
OK_OR_WARN(sethostname(hostname, strlen(hostname)), "Error setting hostname: %s", strerror(errno));
#endif
}
