Thread: input filename to open a file

Hi, I am new to this forum. I am required to make a conversion program to convert one file format to the next using the c language. What I want is to have the user type the name of the file for conversion on the terminal, and it will begin its process. Here is what I have so far:

Code:

char *inputconnectfilename;

FILE *InputConnectionFile;
printf("Please input the filename of the connection file (Note: Must be in the same directory of this program)\n");

scanf("%s", inputconnectfilename);
printf("intializing...   ");
printf("%s", *inputconnectfilename);
InputConnectionFile = fopen(inputconnectfilename, "r");

if (InputConnectionFile == NULL)
{	
	printf("\nFailed to open the file.\n");
	exit(1);

}
...

The code compiled without any errors. However, no matter what I type for the filename, a segmentation error is there and my "failed to open file" message appeared. Can somebody help me to find what was wrong with this code, and if possible, ways to fix it?

Thanks.

Thanks for your quick reply!

for some reason I have implement your code like this:

Code:

char inputconnectfilename[260];
FILE *InputConnectionFile;

printf("Please input the filename of the connection file (Note: Must be in the same directory of this program)\n");
fgets(inputconnectfilename, sizeof(inputconnectfilename), stdin);



printf("intializing...   ");

if((InputConnectionFile = fopen(inputconnectfilename, "r")) == NULL)
{
    perror("Failed to open the file");
    exit(1);
}

it compiled without any errors, however, there is another error came up:

[firyace@localhost Desktop]$ gcc -o a projectmain.c
[firyace@localhost Desktop]$ ./a
Please input the filename of the connection file (Note: Must be in the same dire ctory of this program)
projectmain.c
Failed to open the file: No such file or directory
intializing...
[firyace@localhost Desktop]$

it is weird in a sense that I have the real file (the exact file for the source code) inside the directory, and perror gave me "No such file or directory". Also, I have purposely printed a message right before perror, yet the word "initializing..." came after the Failure message. Did I do something wrong? Please help.
Thanks.

Thankyou very much, you guys are awesome!

Now this part of the program works!

Thanks.