problem printf after inserting single list from file
hi everyone
i am writing a book datzabase(my first)
the trouble is when i want to check if the funcition finds the same isbn number it wrecks my linked list
an example
org isbn 1-234-56789-0
i want to make 1234567890 when i use input directly from the keyboard no problem
but when i read the isbn-number from a file
i get instead of 1-234-56789-0
becomming 123456789! my last number is changed into a exclamtion point
any one got any ideas here is the code[
Code:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<ctype.h>
#define BUFSIZE 80
struct dbline{
char author[BUFSIZE];
char title[BUFSIZE];
char edition[BUFSIZE];
char isbn[15];
char publisher[BUFSIZE];
char comment[BUFSIZE];
struct dbline *next_rec;
};
typedef struct dbline LIST;
typedef LIST *LINK;
void clear_kb(void)
{
char junk[BUFSIZE];
fgets(junk,BUFSIZE,stdin);
}
LINK search_isbn(LINK first)
{
LINK tmp_rec = NULL;
LINK cur_rec = NULL;
LINK head = NULL;
char *p;
char ch;
char *search_buf;
char *search_buf1;
char *tmp_buf;
char *tmp_buf1;
long fin_isbn_num;
long fin_isbn_tmp;
int i = 0;
int ii = 0;
search_buf = (char *) malloc(15 * sizeof(char));
search_buf1 = (char *) malloc(12 * sizeof(char));
tmp_buf = (char *) malloc(15 * sizeof(char));
tmp_buf1 = (char *) malloc(12 * sizeof(char));
puts("Enter the isbn number that you want to search");
fgets(search_buf,16,stdin);
/* p = strchr(search_buf,'\n');
if ( p != NULL)
*p = '\0';*/
clear_kb();
cur_rec = first;
while(search_buf[i] != '\n')
{
ch = search_buf[i];
if(search_buf[i++] != '-')
{
search_buf1[ii++] = ch;
}
}
printf("%s\n", search_buf1);
puts("\n");
while (cur_rec != NULL)
{
printf("%s\n", cur_rec->isbn);
puts("\n");
i = 0;
ii = 0;
strcpy(tmp_buf,cur_rec->isbn);
while(tmp_buf[i] != '\n')
{
ch = tmp_buf[i];
if(tmp_buf[i++] != '-')
{
tmp_buf1[ii++] = ch;
}
}
printf("%s\n", tmp_buf1);
fin_isbn_num = atol(search_buf1);
fin_isbn_tmp = atol(tmp_buf1);
printf("%ld\n", fin_isbn_num);
printf("%ld\n", fin_isbn_tmp);
if(fin_isbn_num == fin_isbn_tmp)
{
if(head == NULL)
{
tmp_rec = cur_rec;
head = tmp_rec;
}
}
cur_rec = cur_rec->next_rec;
}
return head;
}
FILE *open_file_to_read(FILE *fp ,char *filename)
{
if((fp = fopen(filename ,"r")) == NULL)
{
fprintf(stderr ,"error opening file");
exit(-1);
}
return fp;
}
LINK read_to_list(FILE *fpr, LINK first)
{
LIST tmp_rec ;
LINK new_rec = NULL;
LINK cur_rec = NULL;
while(fgets(tmp_rec.author, BUFSIZE, fpr) && fgets(tmp_rec.title, BUFSIZE, fpr) && fgets(tmp_rec.edition, BUFSIZE, fpr) && fgets(tmp_rec.isbn, BUFSIZE, fpr) && fgets(tmp_rec.publisher, BUFSIZE, fpr) && fgets(tmp_rec.comment, BUFSIZE, fpr) != NULL)
{
new_rec = (LINK) malloc(sizeof(LIST));
*new_rec = tmp_rec;
if (cur_rec == NULL)
{
cur_rec = new_rec;
first = new_rec;
}
else
{
cur_rec->next_rec = new_rec;
cur_rec=new_rec;
}
new_rec->next_rec = NULL;
}
printf("%s", first->author);
return first;
}
void print_all(LINK first)
{
LINK cur_rec = NULL;
cur_rec = first;
while (cur_rec != NULL)
{
printf("\nauthor: %s", cur_rec->author);
printf("\ntitle: %s", cur_rec->title);
printf("\nedition: %s", cur_rec->edition);
printf("\nisbn: %s", cur_rec->isbn);
printf("\npublisher: %s", cur_rec->publisher);
printf("\ncomment: %s", cur_rec->comment);
cur_rec = cur_rec->next_rec;
}
}
int menu_search(void)
{
int answer;
puts("1:Author");
puts("2:Title");
puts("3:Isbn");
puts("4:Publisher");
puts("5:Comment");
scanf("%d", &answer); /*veranderen in short*/
clear_kb();
return answer;
}
char menu(void)
{
char answer;
puts("New : n");
puts("Add new line: a");
puts("Modifya new line: m");
puts("Delete: d");
puts("Print: p");
puts("Quit: q");
scanf("%c", &answer);
clear_kb();
return answer;
}
int main (void)
{
LINK first = NULL;
LINK new_rec = NULL;
new_rec = (LINK)malloc(sizeof(LIST));
char answer_m;
char filename[BUFSIZE];
char *p;
FILE *fp ;
FILE *fpr;
int answer_search = 0;
if(!new_rec)
{
printf("\nUnable to alloctte memory!\n");
exit(1);
}
answer_m = menu();
switch(answer_m)
{
case 'p':
{
puts("Enter the filename:");
fgets(filename,BUFSIZE,stdin);
p = strchr(filename,'\n');
if ( p != NULL)
*p = '\0';
clear_kb();
fpr = open_file_to_read(fp, filename);
first = read_to_list(fpr, first);
fclose(fpr);
while(1)
{
answer_search = menu_search();
switch(answer_search)
{
case 3:
{
first = search_isbn(first);
print_all(first);
exit(-1);
}
}
}
break;
}
case 'q':
{
exit(1);
}
}
return 0;
}
thanks in advance
