Thread: Issues compiling multiple c files.

Here are the c files that I'm trying to compile. Please note that I haven't cleaned up the code yet.

Code:

[cdalten@localhost YAPP]$ more diren.h
#define MAX 14

typedef struct {
  long ino;
  char name[MAX + 1];
} Dirent;

typedef struct {
  int fd;
  Dirent d;
} DIR;

Code:

[cdalten@localhost YAPP]$ more opendir.c
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>

#include "diren.h"

#define PATH "/home/cdalten/oakland"

DIR *opendirectory(void) {
  int fd;

  DIR *dp;
  if ( (fd = open(PATH, O_RDONLY)) < 0) {
    perror(PATH);
    exit(EXIT_FAILURE);
  }

  dp = (DIR *)malloc(sizeof(DIR));

  dp->fd = fd;
  return dp;
}

int main(void) {

  size_t n;
  char buf[BUFSIZ];

  DIR *dfp;

  dfp = opendirectory();

  /*if ( (fd = open(PATH, O_RDONLY)) < 0) {
    perror(PATH);
    exit(EXIT_FAILURE);
  }

  while ((n = read(fd, buf, BUFSIZ)) > 0) {
    if (write(1, buf, n) != n) {
      fprintf(stderr, "Can't call write\n");
      exit(EXIT_FAILURE);
    }
  }

  close(fd);*/

  exit(EXIT_SUCCESS);
}
[cdalten@localhost YAPP]$

Code:

[cdalten@localhost YAPP]$ more readdir.c
#include <sys/dir.h>
#include "diren.h"

DIR *readdirectory() {
  struct direct dirbuf;
  static Dirent d;
}
[cdalten@localhost YAPP]$

And here is the error that I get.....

[cdalten@localhost YAPP]$ gcc -g opendir.c readdir.c -o readit
In file included from readdir.c:2:
diren.h:11: error: conflicting types for ‘DIR’
/usr/include/dirent.h:128: error: previous declaration of ‘DIR’ was here
[cdalten@localhost YAPP]$

What am I doing wrong here?

What are you doing wrong? Why are you redefining system names?

I knew that. I really did.