Sheeva reloaded

#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <syslog.h>
#include <string.h>
#include <dirent.h>

void shutdown() {
system("shutdown -P 1 &");
}

int searchForFile(char* fname, char* parent_dir) {
char filenm[256 * 1024];
int found = 0;
DIR *mydir = opendir(parent_dir);
struct dirent *entry = NULL;
struct dirent *entry2 = NULL;
while ((entry = readdir(mydir))) {
if ((strcmp(entry->d_name, ".") != 0) && (strcmp(entry->d_name, "..")
!= 0) && (entry->d_type == DT_DIR)) {
strcpy(filenm, parent_dir);
strcat(filenm, "/");
strcat(filenm, entry->d_name);

DIR *mydir2 = opendir(filenm);
while ((entry2 = readdir(mydir2))) {
if (strcmp(entry2->d_name, fname) == 0) {
found = 1;
}
}
closedir(mydir2);
}
}
closedir(mydir);
return found;
}

int main(void) {
int dontstop = 1;
pid_t pid, sid;
pid = fork();
if (pid < 0) {
exit(EXIT_FAILURE);
}
if (pid > 0) {
exit(EXIT_SUCCESS);
}
umask(0);
sid = setsid();
if (sid < 0) {
exit(EXIT_FAILURE);
}
if ((chdir("/")) > 0) {
exit(EXIT_FAILURE);
}
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
while (dontstop) {
int found = searchForFile("letsGoToSleepMySheeva.command", "/media");
if (found > 0) {
shutdown();
dontstop = 0;
}
sleep(10);
}
exit(EXIT_SUCCESS);
}