检查文件是否在当前目录中

Question

I'm using this piece of C code in Linux to check if file exists in the same directory as the ".c" file:

int file_exist(char *filename)
{
    FILE *fp = fopen(filename, "r");
    if (fp) {
        return 1;
    } else {
        return 0;
    }
}

but it always returns false even though the file exists! Is the problem that Linux is searching in a different directory? How to solve this?

Answer 1

Just use stat - http://linux.die.net/man/2/stat

If it returns 0 then the file exists. You can even find out if you can read it.

Answer 2

Use ferror method to test everything is okay with input file.

 FILE *fp;
 fp = fopen("RECORD.txt","r");

 if (ferror(fp) != 0){
  printf("File has error");
  exit(0);
 }