Daemon does not write to file - c

Question

I wrote a daemon that is supposed to log itself when it recieves a signal. If I do not daemonize the process, it works correctly and writes to the file and I can see all the signals it recieved. But when I daemonize it, and send a signal for ex kill -14 (pid) , the daemon never writes to the file that the signal is recieved. Code is below
#include <stdio.h>
#include <unistd.h>
#include "signalinfo.h"
#include <errno.h>
#include <string.h>
#include <limits.h>
#include <stdlib.h>
#include <fcntl.h>
#include <syslog.h>
#include <sys/resource.h>
#include <sys/stat.h>
char *newline = "\n ";
void
daemonize(const char *cmd)
{
int i, fd0, fd1, fd2;
pid_t pid;
struct rlimit rl;
struct sigaction sa;
umask(0);
if (getrlimit(RLIMIT_NOFILE, &rl) < 0) {
printf("Can't get file limit\n");
exit(EXIT_FAILURE);
}
if ((pid = fork()) < 0) {
printf("Can't Fork\n");
exit(EXIT_FAILURE);
}
else if (pid != 0) /* parent */
exit(0);
setsid();
sa.sa_handler = SIG_IGN;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
if (sigaction(SIGHUP, &sa, NULL) < 0){
printf("Can't ignore SIGHUP\n");
exit(EXIT_FAILURE);
}
if ((pid = fork()) < 0) {
printf("Can't Fork\n");
exit(EXIT_FAILURE);
}
else if (pid != 0) /* parent */
exit(0);
if (chdir("/") < 0) {
printf("Can't Change Directory to /\n");
exit(EXIT_FAILURE);
}
if (rl.rlim_max == RLIM_INFINITY)
rl.rlim_max = 1024;
for (i = 0; i < rl.rlim_max; i++)
close(i);
fd0 = open("/dev/null", O_RDWR);
fd1 = dup(0);
fd2 = dup(0);
openlog(cmd, LOG_CONS, LOG_DAEMON);
if (fd0 != 0 || fd1 != 1 || fd2 != 2) {
syslog(LOG_ERR, "unexpected file descriptors %d %d %d",
fd0, fd1, fd2);
exit(1);
}
}
void
setsig(struct sigaction sa)
{
int i;
for(i=0; i<SIGNAL_LIST_LENGTH; i++) {
printf("%d Set\n", siglist[i].code);
if(sigaction(siglist[i].code, &sa, NULL) == -1) { //Will error on SIGSTOP & SIGKILL
}
}
}
void
handler(int sig)
{
char path[PATH_MAX];
int fd, flags, i;
flags = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IWOTH | S_IROTH;
getcwd(path, PATH_MAX);
strcat(path,"/signal.log");
fd = open(path, O_WRONLY | O_CREAT | O_APPEND | O_NONBLOCK , flags);
for(i=0; i<SIGNAL_LIST_LENGTH; i++) {
if(sig == siglist[i].code) {
write(fd, siglist[i].name, strlen(siglist[i].name));
write(fd, newline, strlen(newline));
}
}
close(fd);
}
int
main(int argc, char *argv[])
{
char *cmd;
struct sigaction sa;
sa.sa_handler = handler;
setsig(sa);
if((cmd = strchr(argv[0], '/')) == NULL)
cmd = argv[0];
else
cmd++;
daemonize(cmd);
while(1) {
sleep(1);
}
}
Any Idea as to why I can't write to the file that I created? It works correctly when I dont daemonize it but when I do, it doesn't work.