프로그래밍 QnA

[code:1]#include <sys/time.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/poll.h>

// 받아들일수 있는 클라이언트의 크기
#define OPEN_MAX 600

int main(int argc, char **argv)
{

int server_sockfd, client_sockfd, sockfd, udp_sock;

int i, maxi;
int nread;
int state = 0;

socklen_t clilen;

struct sockaddr_in clientaddr, serveraddr, udpserveraddr;

에러내용은 제목처럼 그렇구요
static SUserParm_T *gpstUser;
void infCpyUserParm(SUserParm_T *pUser) { gpstUser = pUser; }

int infSetUserParm(SUserParm_T *pUser, int argc, char **argv)
{
char szFileName[256];
char *pPath;

gpAppName = argv[0];
infCpyUserParm(pUser);

if ( argc == 2 ) {
sprintf(szFileName, "%s", argv[1]);
} else {
if ( (pPath = getenv("CFG_DIR")) != NULL ) {
sprintf(szFileName, "%s/%s.cfg", pPath, argv[0]);
} else {
sprintf(szFileName, "%s.cfg", argv[0]);
}
}

#if 0
fprintf(stdout, "CONFIG FILE NAME[%s]\n", szFileName);

#include <stdio.h>
#include <unistd.h>

typedef struct _Card Card;
struct _Card{

  int number;
  char shape;
    
};

int main()
{
    Card* cards[3];
    cards[0] = (Card*)malloc(sizeof(Card));
    cards[0]->number  = 3;
    cards[0]->shape  = 'b';
    cards[0]->shape  = 'c';
    cards[0]->shape  = 'd';
    cards[0]->shape  = 'k';
    
    printf("card shape is %c\n", cards[0]->shape);
}

[code:1]
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>

#define PERMS 0666

int main(int argc, char **argv)
{
void fatal(char *);
int object;
char buf[BUFSIZ];
int pfd[2];
int n, status;
pid_t pid;


if(argc < 2)
{
puts("Usage: a.out source object");
exit(1);
}

if(pipe(pfd) < 0)
fatal("pipe");

if((pid = fork()) < 0)
fatal("fork");

if(pid == 0)