Thread: doubt

My program is running properly if I use the "F7" option in turbo C compiler and execute the code step wise.
But when I use the "RUN" option of turbo C compiler, it keeps running for ever.

Why does such a thing happen?

sorry, i thought this would be a common problem,
anyway here is the code.

And please tell me, if possible, if i can improve the code with any other special library functions!

Thanks

Code:

/*Sequentially read the whole audio book*/


#include "stdio.h"
#include "string.h"

long global_offset;
int count = 0;

main()
{
	char *lookinfile, *searchfile, *foundfile;
	int headercount, i;

	char *lookforfile(char * , char * , int);
	clrscr();

	for(i=0; i<5; i++)
	{

		lookinfile = "0ncc.txt";
		searchfile = "smil";
		headercount = 1;

		foundfile = lookforfile(lookinfile, searchfile, headercount);

		printf("\n%s",foundfile);

		searchfile = "mp3";

		foundfile = lookforfile(foundfile, searchfile, headercount);
		printf("\n%s",foundfile);
	}
}



char *lookforfile(char *lookinfile, char *searchfile, int headercount)
{


	char ch;
	int j;
	long offset;
	FILE *fp;
	char *lookupfile, *global_next_header, *returnfile;

	fp = fopen(lookinfile,"r");

	lookupfile = "smil";


if(searchfile[0]==lookupfile[0])
{
	if(count == 0)
	{

		while(count != headercount)
		{
			/*LOOK FOR headerstring;*/

			ch=fgetc(fp);
			if(ch=='<')
			{
				if((ch=fgetc(fp))=='h')
				{
					if((ch=fgetc(fp))=='1')
					{
						/*FOUND H1?*/
						count = count+1;
					}
				}
			}
		}
	}


	if(count>1)
	{

		fseek(fp, global_offset, SEEK_SET);
	}



	while(ch!='\n')
	{
		/*Look for h ref="......"*/
		/*... *lookupfile = "xyz.smil" */

		if((ch=fgetc(fp))=='h')
		{
			if((ch=fgetc(fp))=='r')
			{
				if((ch=fgetc(fp))=='e')
				{
					if((ch=fgetc(fp))=='f')
					{
						if((ch=fgetc(fp))=='\=')
						{
							if((ch=fgetc(fp))=='\"')
							{
								j=0;
								while((ch=fgetc(fp))!='\#')
								{
									returnfile[j]=ch;
									j++;
								}
								returnfile[j]='\0';
							}
						}
					}
				}
			}
		}
	}


	/*WHAT IS NEXT AVAILABLE HEADER?*/

	while((ch=getc(fp))!='\<');
	j=0;
	while((ch=getc(fp))!='\ ')
	{
		global_next_header[j]=ch;
		j++;
	}
		count = count+1;
		global_offset = ftell(fp);
		global_next_header[j]='\0';


	return(returnfile);
}


	lookupfile="mp3";

	/*LOOK UP MP3 FILE */

	if(searchfile[0]==lookupfile[0])
	{
		/*Look for audio src"......"*/

		/*...*lookupfile = "abc.mp3"...*/

		while((ch=fgetc(fp))!='\n')
		{
			if(ch=='s')
			{
				if((ch=fgetc(fp))=='r')
					{
					if((ch=fgetc(fp))=='c')
					{
						if((ch=fgetc(fp))=='\=')
						{
							if((ch=fgetc(fp))=='\"')
							{
								j=0;
								while((ch=fgetc(fp))!='\"')
								{
									returnfile[j]=ch;
									j++;
								}
								returnfile[j]='\0';
							}
						}
					}
				}
			}
		}
		return(returnfile);
	}

}