Thread: Help in checking password in a file

Originally Posted by frodonet

but earlier before i do scanf i have put these command.

Code:

fpassword = fopen("C:\\PASSWD.TXT", "r");
if (fpassword == NULL) printf("File doesn't exist\n");

but if it can't open in the first place...shouldn't it terminate instantly?? rather than continue executing...

Yes, it should, but your program doesn't. Again, it related to what I told you before about code execution always go forward because you haven't told the compiler to quit.

Originally Posted by matsp

Because there is a newline at the end of "John1" that is printed as part of the username, then a comma after the username, which comes out on the next line, before the password. You probably want to remove those. I posted a post earlier about how to remove the newline after fgets().

--
Mats

ok i have remove the new line though...

but after scanf...it seems it still close the program...i don know why....

argghhghghgh

Originally Posted by Elysia

Yes, it should, but your program doesn't. Again, it related to what I told you before about code execution always go forward because you haven't told the compiler to quit.

in which part i don tell the compiler to quit???

Originally Posted by frodonet

in which part i don tell the compiler to quit???

After checking the file failed to open.

Code:

#include <stdio.h>
#include <io.h>
#define NULL 0
#define EOF (-1)

main()
{
	char pw[4];
	char c;
	FILE *fp, *fopen();
	fp=fopen("c:\\password.txt","rb");

	if(fp==NULL)
	{

	printf("can not open file\n\n");

	getchar();

	exit();

	}




	while((c=fgetc(fp))!=(EOF))
	{
	/* printf("found\n"); */
	printf("&#37;c", c);

	getchar();
	}

	fclose(fp);


	getchar();
 }

hi...i recently given sort of assignment for matching.
but i facing problem for stopping.

As i use getchar() to troubleshoot, instead i can read the password.txt
but read with never ending...can someone enlighten me plz..?