Thread: FILE * fp, remove one line from text file and duplicate it

Hey all...this is my grocery inventory program, also I aware to not use while (!feof(fp) however I haven't yet sorted through my code to find the correct statement. Also, i am wondering why my temp file is not being created (tmpfile, temp.txt). Thanks for help.

Code:

...
...
void remove_entry(void)
{
	FILE *fp;
	FILE *fp2;
	FILE *fp3;
	FILE *tmpfile;
	
	char str[MAXCHAR];
	char str2[MAX];

	fp = fopen("REFRIGERATOR.TXT", "r+");
	fp2 = fopen("FREEZER.TXT", "r+");
	fp3 = fopen("DRY_STOCK.TXT", "r+");
	tmpfile = fopen("temp.txt", "w");		// open temporary file in write mode

	int ln, number, ctr;
	ctr = 0;

	if (!tmpfile)
	{
		printf("Unable to open a temporary file to write!\n");
		exit(0);
	}

	puts("\n1. for Fridge\n2. for Freezer\n3. for dry shelve\n");
	scanf("%d", &number);
	

	if(number == 1)
	{
		// Print REFRIGERATOR.TXT to screen

		while(fgets(str, MAXCHAR, fp) != NULL)
		{
			printf("%s", str);
		}
		
		puts("\n");

		printf("Input the line you want to remove: ");
		scanf("%d", &ln);
		ln++;

		// copy all contents to the temporary file except the specific line
	
		while (!feof(fp))
		{
			strcpy(str2, "\0");
			fgets(str2, MAX, fp);
			if (!feof(fp))
			{
				ctr++;
				/* skip the line at given line number */
				if (ctr != ln)
				{
					fprintf(tmpfile, "%s", str2);
				}
			}
		}

		menu();

		fclose (fp);
		fclose (tmpfile);
	}
}