I am having problem letting the user enter its filename, and if the user press e

Question

I am having problem letting the user enter its filename, and if the user press enter it will open the default file. Here is a little of my code, I couldn't make it open the default file....
FILE* openFile()
{
FILE* fp;
char fileName[81];

do
{
printf("Enter the file name to be open or press Enter to open the default file: ");
fgets(fileName, 80, stdin);
printf("%s***** ", fileName);

if(fileName[strlen(fileName)-1] = ' ')
fileName[strlen(fileName)-1] = '';

if(fileName == " ")
{
// printf("%s***** ", fileName);
fp = fopen("in.txt", "r");
}
else if( !(fp = fopen(fileName, "r")))
{
printf("No such file ");
}
else
fp = fopen(fileName, "r");
}while(!fp);

return fp;
}

Explanation / Answer

please rate - thanks

hope this helps

#include <stdio.h>
#include <conio.h>
FILE* openFile();
int main()
{FILE *input;
input=openFile();
getch();
}
   
   
   
   
FILE* openFile()
{
FILE* fp;
char fileName[81];

do
{
printf("Enter the file name to be open or press Enter to open the default file: ");
fgets(fileName, 80, stdin);
printf("%s***** ", fileName);
if(strlen(fileName)==1 )
    {fp = fopen("in.txt", "r");
                       printf("here ");
    }
else
   if( !(fp = fopen(fileName, "r")))
    {
      printf("No such file ");
     }
    else
      fp = fopen(fileName, "r");
}while(!fp);

return fp;
}

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